src/gui/guiFormSpecMenu.cpp

   1 /*
   2 Minetest
   3 Copyright (C) 2013 celeron55, Perttu Ahola <celeron55@gmail.com>
   4
   5 This program is free software; you can redistribute it and/or modify
   6 it under the terms of the GNU Lesser General Public License as published by
   7 the Free Software Foundation; either version 2.1 of the License, or
   8 (at your option) any later version.
   9
  10 This program is distributed in the hope that it will be useful,
  11 but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 GNU Lesser General Public License for more details.
  14
  15 You should have received a copy of the GNU Lesser General Public License along
  16 with this program; if not, write to the Free Software Foundation, Inc.,
  17 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  18 */
  19
  20
  21 #include <cstdlib>
  22 #include <algorithm>
  23 #include <iterator>
  24 #include <sstream>
  25 #include <limits>
  26 #include "guiButton.h"
  27 #include "guiFormSpecMenu.h"
  28 #include "guiTable.h"
  29 #include "constants.h"
  30 #include "gamedef.h"
  31 #include "client/keycode.h"
  32 #include "util/strfnd.h"
  33 #include <IGUICheckBox.h>
  34 #include <IGUIEditBox.h>
  35 #include <IGUIButton.h>
  36 #include <IGUIStaticText.h>
  37 #include <IGUIFont.h>
  38 #include <IGUITabControl.h>
  39 #include <IGUIComboBox.h>
  40 #include "client/renderingengine.h"
  41 #include "log.h"
  42 #include "client/tile.h" // ITextureSource
  43 #include "client/hud.h" // drawItemStack
  44 #include "filesys.h"
  45 #include "gettime.h"
  46 #include "gettext.h"
  47 #include "scripting_server.h"
  48 #include "mainmenumanager.h"
  49 #include "porting.h"
  50 #include "settings.h"
  51 #include "client/client.h"
  52 #include "client/fontengine.h"
  53 #include "util/hex.h"
  54 #include "util/numeric.h"
  55 #include "util/string.h" // for parseColorString()
  56 #include "irrlicht_changes/static_text.h"
  57 #include "client/guiscalingfilter.h"
  58 #include "guiEditBoxWithScrollbar.h"
  59 #include "intlGUIEditBox.h"
  60
  61 #define MY_CHECKPOS(a,b)                                                                                                        \
  62         if (v_pos.size() != 2) {                                                                                                \
  63                 errorstream<< "Invalid pos for element " << a << "specified: \""        \
  64                         << parts[b] << "\"" << std::endl;                                                               \
  65                         return;                                                                                                                 \
  66         }
  67
  68 #define MY_CHECKGEOM(a,b)                                                                                                       \
  69         if (v_geom.size() != 2) {                                                                                               \
  70                 errorstream<< "Invalid geometry for element " << a <<                           \
  71                         "specified: \"" << parts[b] << "\"" << std::endl;                               \
  72                         return;                                                                                                                 \
  73         }
  74 /*
  75         GUIFormSpecMenu
  76 */
  77 static unsigned int font_line_height(gui::IGUIFont *font)
  78 {
  79         return font->getDimension(L"Ay").Height + font->getKerningHeight();
  80 }
  81
  82 inline u32 clamp_u8(s32 value)
  83 {
  84         return (u32) MYMIN(MYMAX(value, 0), 255);
  85 }
  86
  87 GUIFormSpecMenu::GUIFormSpecMenu(JoystickController *joystick,
  88                 gui::IGUIElement *parent, s32 id, IMenuManager *menumgr,
  89                 Client *client, ISimpleTextureSource *tsrc, IFormSource *fsrc, TextDest *tdst,
  90                 const std::string &formspecPrepend,
  91                 bool remap_dbl_click):
  92         GUIModalMenu(RenderingEngine::get_gui_env(), parent, id, menumgr),
  93         m_invmgr(client),
  94         m_tsrc(tsrc),
  95         m_client(client),
  96         m_formspec_prepend(formspecPrepend),
  97         m_form_src(fsrc),
  98         m_text_dst(tdst),
  99         m_joystick(joystick),
 100         m_remap_dbl_click(remap_dbl_click)
 101 {
 102         current_keys_pending.key_down = false;
 103         current_keys_pending.key_up = false;
 104         current_keys_pending.key_enter = false;
 105         current_keys_pending.key_escape = false;
 106
 107         m_doubleclickdetect[0].time = 0;
 108         m_doubleclickdetect[1].time = 0;
 109
 110         m_doubleclickdetect[0].pos = v2s32(0, 0);
 111         m_doubleclickdetect[1].pos = v2s32(0, 0);
 112
 113         m_tooltip_show_delay = (u32)g_settings->getS32("tooltip_show_delay");
 114         m_tooltip_append_itemname = g_settings->getBool("tooltip_append_itemname");
 115 }
 116
 117 GUIFormSpecMenu::~GUIFormSpecMenu()
 118 {
 119         removeChildren();
 120
 121         for (auto &table_it : m_tables) {
 122                 table_it.second->drop();
 123         }
 124
 125         delete m_selected_item;
 126         delete m_form_src;
 127         delete m_text_dst;
 128 }
 129
 130 void GUIFormSpecMenu::create(GUIFormSpecMenu *&cur_formspec, Client *client,
 131         JoystickController *joystick, IFormSource *fs_src, TextDest *txt_dest,
 132         const std::string &formspecPrepend)
 133 {
 134         if (cur_formspec == nullptr) {
 135                 cur_formspec = new GUIFormSpecMenu(joystick, guiroot, -1, &g_menumgr,
 136                         client, client->getTextureSource(), fs_src, txt_dest, formspecPrepend);
 137                 cur_formspec->doPause = false;
 138
 139                 /*
 140                         Caution: do not call (*cur_formspec)->drop() here --
 141                         the reference might outlive the menu, so we will
 142                         periodically check if *cur_formspec is the only
 143                         remaining reference (i.e. the menu was removed)
 144                         and delete it in that case.
 145                 */
 146
 147         } else {
 148                 cur_formspec->setFormspecPrepend(formspecPrepend);
 149                 cur_formspec->setFormSource(fs_src);
 150                 cur_formspec->setTextDest(txt_dest);
 151         }
 152 }
 153
 154 void GUIFormSpecMenu::removeChildren()
 155 {
 156         const core::list<gui::IGUIElement*> &children = getChildren();
 157
 158         while(!children.empty()) {
 159                 (*children.getLast())->remove();
 160         }
 161
 162         if(m_tooltip_element) {
 163                 m_tooltip_element->remove();
 164                 m_tooltip_element->drop();
 165                 m_tooltip_element = NULL;
 166         }
 167
 168 }
 169
 170 void GUIFormSpecMenu::setInitialFocus()
 171 {
 172         // Set initial focus according to following order of precedence:
 173         // 1. first empty editbox
 174         // 2. first editbox
 175         // 3. first table
 176         // 4. last button
 177         // 5. first focusable (not statictext, not tabheader)
 178         // 6. first child element
 179
 180         core::list<gui::IGUIElement*> children = getChildren();
 181
 182         // in case "children" contains any NULL elements, remove them
 183         for (core::list<gui::IGUIElement*>::Iterator it = children.begin();
 184                         it != children.end();) {
 185                 if (*it)
 186                         ++it;
 187                 else
 188                         it = children.erase(it);
 189         }
 190
 191         // 1. first empty editbox
 192         for (gui::IGUIElement *it : children) {
 193                 if (it->getType() == gui::EGUIET_EDIT_BOX
 194                                 && it->getText()[0] == 0) {
 195                         Environment->setFocus(it);
 196                         return;
 197                 }
 198         }
 199
 200         // 2. first editbox
 201         for (gui::IGUIElement *it : children) {
 202                 if (it->getType() == gui::EGUIET_EDIT_BOX) {
 203                         Environment->setFocus(it);
 204                         return;
 205                 }
 206         }
 207
 208         // 3. first table
 209         for (gui::IGUIElement *it : children) {
 210                 if (it->getTypeName() == std::string("GUITable")) {
 211                         Environment->setFocus(it);
 212                         return;
 213                 }
 214         }
 215
 216         // 4. last button
 217         for (core::list<gui::IGUIElement*>::Iterator it = children.getLast();
 218                         it != children.end(); --it) {
 219                 if ((*it)->getType() == gui::EGUIET_BUTTON) {
 220                         Environment->setFocus(*it);
 221                         return;
 222                 }
 223         }
 224
 225         // 5. first focusable (not statictext, not tabheader)
 226         for (gui::IGUIElement *it : children) {
 227                 if (it->getType() != gui::EGUIET_STATIC_TEXT &&
 228                         it->getType() != gui::EGUIET_TAB_CONTROL) {
 229                         Environment->setFocus(it);
 230                         return;
 231                 }
 232         }
 233
 234         // 6. first child element
 235         if (children.empty())
 236                 Environment->setFocus(this);
 237         else
 238                 Environment->setFocus(*(children.begin()));
 239 }
 240
 241 GUITable* GUIFormSpecMenu::getTable(const std::string &tablename)
 242 {
 243         for (auto &table : m_tables) {
 244                 if (tablename == table.first.fname)
 245                         return table.second;
 246         }
 247         return 0;
 248 }
 249
 250 std::vector<std::string>* GUIFormSpecMenu::getDropDownValues(const std::string &name)
 251 {
 252         for (auto &dropdown : m_dropdowns) {
 253                 if (name == dropdown.first.fname)
 254                         return &dropdown.second;
 255         }
 256         return NULL;
 257 }
 258
 259 v2s32 GUIFormSpecMenu::getElementBasePos(bool absolute,
 260                 const std::vector<std::string> *v_pos)
 261 {
 262         v2s32 pos = padding;
 263         if (absolute)
 264                 pos += AbsoluteRect.UpperLeftCorner;
 265
 266         v2f32 pos_f = v2f32(pos.X, pos.Y) + pos_offset * spacing;
 267         if (v_pos) {
 268                 pos_f.X += stof((*v_pos)[0]) * spacing.X;
 269                 pos_f.Y += stof((*v_pos)[1]) * spacing.Y;
 270         }
 271         return v2s32(pos_f.X, pos_f.Y);
 272 }
 273
 274 v2s32 GUIFormSpecMenu::getRealCoordinateBasePos(bool absolute,
 275                 const std::vector<std::string> &v_pos)
 276 {
 277         v2f32 pos_f = v2f32(0.0f, 0.0f);
 278
 279         pos_f.X += stof(v_pos[0]) + pos_offset.X;
 280         pos_f.Y += stof(v_pos[1]) + pos_offset.Y;
 281
 282         if (absolute)
 283                 return v2s32(pos_f.X * imgsize.X + AbsoluteRect.UpperLeftCorner.X,
 284                                 pos_f.Y * imgsize.Y + AbsoluteRect.UpperLeftCorner.Y);
 285         return v2s32(pos_f.X * imgsize.X, pos_f.Y * imgsize.Y);
 286 }
 287
 288 v2s32 GUIFormSpecMenu::getRealCoordinateGeometry(const std::vector<std::string> &v_geom)
 289 {
 290         return v2s32(stof(v_geom[0]) * imgsize.X, stof(v_geom[1]) * imgsize.Y);
 291 }
 292
 293 void GUIFormSpecMenu::parseSize(parserData* data, const std::string &element)
 294 {
 295         std::vector<std::string> parts = split(element,',');
 296
 297         if (((parts.size() == 2) || parts.size() == 3) ||
 298                 ((parts.size() > 3) && (m_formspec_version > FORMSPEC_API_VERSION)))
 299         {
 300                 if (parts[1].find(';') != std::string::npos)
 301                         parts[1] = parts[1].substr(0,parts[1].find(';'));
 302
 303                 data->invsize.X = MYMAX(0, stof(parts[0]));
 304                 data->invsize.Y = MYMAX(0, stof(parts[1]));
 305
 306                 lockSize(false);
 307 #ifndef __ANDROID__
 308                 if (parts.size() == 3) {
 309                         if (parts[2] == "true") {
 310                                 lockSize(true,v2u32(800,600));
 311                         }
 312                 }
 313 #endif
 314                 data->explicit_size = true;
 315                 return;
 316         }
 317         errorstream<< "Invalid size element (" << parts.size() << "): '" << element << "'"  << std::endl;
 318 }
 319
 320 void GUIFormSpecMenu::parseContainer(parserData* data, const std::string &element)
 321 {
 322         std::vector<std::string> parts = split(element, ',');
 323
 324         if (parts.size() >= 2) {
 325                 if (parts[1].find(';') != std::string::npos)
 326                         parts[1] = parts[1].substr(0, parts[1].find(';'));
 327
 328                 container_stack.push(pos_offset);
 329                 pos_offset.X += stof(parts[0]);
 330                 pos_offset.Y += stof(parts[1]);
 331                 return;
 332         }
 333         errorstream<< "Invalid container start element (" << parts.size() << "): '" << element << "'"  << std::endl;
 334 }
 335
 336 void GUIFormSpecMenu::parseContainerEnd(parserData* data)
 337 {
 338         if (container_stack.empty()) {
 339                 errorstream<< "Invalid container end element, no matching container start element"  << std::endl;
 340         } else {
 341                 pos_offset = container_stack.top();
 342                 container_stack.pop();
 343         }
 344 }
 345
 346 void GUIFormSpecMenu::parseList(parserData* data, const std::string &element)
 347 {
 348         if (m_client == 0) {
 349                 warningstream<<"invalid use of 'list' with m_client==0"<<std::endl;
 350                 return;
 351         }
 352
 353         std::vector<std::string> parts = split(element,';');
 354
 355         if (((parts.size() == 4) || (parts.size() == 5)) ||
 356                 ((parts.size() > 5) && (m_formspec_version > FORMSPEC_API_VERSION)))
 357         {
 358                 std::string location = parts[0];
 359                 std::string listname = parts[1];
 360                 std::vector<std::string> v_pos  = split(parts[2],',');
 361                 std::vector<std::string> v_geom = split(parts[3],',');
 362                 std::string startindex;
 363                 if (parts.size() == 5)
 364                         startindex = parts[4];
 365
 366                 MY_CHECKPOS("list",2);
 367                 MY_CHECKGEOM("list",3);
 368
 369                 InventoryLocation loc;
 370
 371                 if (location == "context" || location == "current_name")
 372                         loc = m_current_inventory_location;
 373                 else
 374                         loc.deSerialize(location);
 375
 376                 v2s32 pos;
 377                 v2s32 geom;
 378
 379                 if (data->real_coordinates)
 380                         pos = getRealCoordinateBasePos(true, v_pos);
 381                 else
 382                         pos = getElementBasePos(true, &v_pos);
 383
 384                 geom.X = stoi(v_geom[0]);
 385                 geom.Y = stoi(v_geom[1]);
 386
 387                 s32 start_i = 0;
 388                 if (!startindex.empty())
 389                         start_i = stoi(startindex);
 390
 391                 if (geom.X < 0 || geom.Y < 0 || start_i < 0) {
 392                         errorstream<< "Invalid list element: '" << element << "'"  << std::endl;
 393                         return;
 394                 }
 395
 396                 if(!data->explicit_size)
 397                         warningstream<<"invalid use of list without a size[] element"<<std::endl;
 398                 m_inventorylists.emplace_back(loc, listname, pos, geom, start_i, data->real_coordinates);
 399                 return;
 400         }
 401         errorstream<< "Invalid list element(" << parts.size() << "): '" << element << "'"  << std::endl;
 402 }
 403
 404 void GUIFormSpecMenu::parseListRing(parserData* data, const std::string &element)
 405 {
 406         if (m_client == 0) {
 407                 errorstream << "WARNING: invalid use of 'listring' with m_client==0" << std::endl;
 408                 return;
 409         }
 410
 411         std::vector<std::string> parts = split(element, ';');
 412
 413         if (parts.size() == 2) {
 414                 std::string location = parts[0];
 415                 std::string listname = parts[1];
 416
 417                 InventoryLocation loc;
 418
 419                 if (location == "context" || location == "current_name")
 420                         loc = m_current_inventory_location;
 421                 else
 422                         loc.deSerialize(location);
 423
 424                 m_inventory_rings.emplace_back(loc, listname);
 425                 return;
 426         }
 427
 428         if (element.empty() && m_inventorylists.size() > 1) {
 429                 size_t siz = m_inventorylists.size();
 430                 // insert the last two inv list elements into the list ring
 431                 const ListDrawSpec &spa = m_inventorylists[siz - 2];
 432                 const ListDrawSpec &spb = m_inventorylists[siz - 1];
 433                 m_inventory_rings.emplace_back(spa.inventoryloc, spa.listname);
 434                 m_inventory_rings.emplace_back(spb.inventoryloc, spb.listname);
 435                 return;
 436         }
 437
 438         errorstream<< "Invalid list ring element(" << parts.size() << ", "
 439                 << m_inventorylists.size() << "): '" << element << "'"  << std::endl;
 440 }
 441
 442 void GUIFormSpecMenu::parseCheckbox(parserData* data, const std::string &element)
 443 {
 444         std::vector<std::string> parts = split(element,';');
 445
 446         if (((parts.size() >= 3) && (parts.size() <= 4)) ||
 447                 ((parts.size() > 4) && (m_formspec_version > FORMSPEC_API_VERSION)))
 448         {
 449                 std::vector<std::string> v_pos = split(parts[0],',');
 450                 std::string name = parts[1];
 451                 std::string label = parts[2];
 452                 std::string selected;
 453
 454                 if (parts.size() >= 4)
 455                         selected = parts[3];
 456
 457                 MY_CHECKPOS("checkbox",0);
 458
 459                 bool fselected = false;
 460
 461                 if (selected == "true")
 462                         fselected = true;
 463
 464                 std::wstring wlabel = translate_string(utf8_to_wide(unescape_string(label)));
 465                 const core::dimension2d<u32> label_size = m_font->getDimension(wlabel.c_str());
 466                 s32 cb_size = Environment->getSkin()->getSize(gui::EGDS_CHECK_BOX_WIDTH);
 467                 s32 y_center = (std::max(label_size.Height, (u32)cb_size) + 1) / 2;
 468
 469                 v2s32 pos;
 470                 core::rect<s32> rect;
 471
 472                 if (data->real_coordinates) {
 473                         pos = getRealCoordinateBasePos(false, v_pos);
 474
 475                         rect = core::rect<s32>(
 476                                         pos.X,
 477                                         pos.Y - y_center,
 478                                         pos.X + label_size.Width + cb_size + 7,
 479                                         pos.Y + y_center
 480                                 );
 481                 } else {
 482                         pos = getElementBasePos(false, &v_pos);
 483                         rect = core::rect<s32>(
 484                                         pos.X,
 485                                         pos.Y + imgsize.Y / 2 - y_center,
 486                                         pos.X + label_size.Width + cb_size + 7,
 487                                         pos.Y + imgsize.Y / 2 + y_center
 488                                 );
 489                 }
 490
 491                 FieldSpec spec(
 492                                 name,
 493                                 wlabel, //Needed for displaying text on MSVC
 494                                 wlabel,
 495                                 258+m_fields.size()
 496                         );
 497
 498                 spec.ftype = f_CheckBox;
 499
 500                 gui::IGUICheckBox* e = Environment->addCheckBox(fselected, rect, this,
 501                                         spec.fid, spec.flabel.c_str());
 502
 503                 auto style = getStyleForElement("checkbox", name);
 504                 e->setNotClipped(style.getBool(StyleSpec::NOCLIP, false));
 505
 506                 if (spec.fname == data->focused_fieldname) {
 507                         Environment->setFocus(e);
 508                 }
 509
 510                 m_checkboxes.emplace_back(spec,e);
 511                 m_fields.push_back(spec);
 512                 return;
 513         }
 514         errorstream<< "Invalid checkbox element(" << parts.size() << "): '" << element << "'"  << std::endl;
 515 }
 516
 517 void GUIFormSpecMenu::parseScrollBar(parserData* data, const std::string &element)
 518 {
 519         std::vector<std::string> parts = split(element,';');
 520
 521         if (parts.size() >= 5) {
 522                 std::vector<std::string> v_pos = split(parts[0],',');
 523                 std::vector<std::string> v_geom = split(parts[1],',');
 524                 std::string name = parts[3];
 525                 std::string value = parts[4];
 526
 527                 MY_CHECKPOS("scrollbar",0);
 528                 MY_CHECKGEOM("scrollbar",1);
 529
 530                 v2s32 pos;
 531                 v2s32 dim;
 532
 533                 if (data->real_coordinates) {
 534                         pos = getRealCoordinateBasePos(false, v_pos);
 535                         dim = getRealCoordinateGeometry(v_geom);
 536                 } else {
 537                         pos = getElementBasePos(false, &v_pos);
 538                         dim.X = stof(v_geom[0]) * spacing.X;
 539                         dim.Y = stof(v_geom[1]) * spacing.Y;
 540                 }
 541
 542                 core::rect<s32> rect =
 543                                 core::rect<s32>(pos.X, pos.Y, pos.X + dim.X, pos.Y + dim.Y);
 544
 545                 FieldSpec spec(
 546                                 name,
 547                                 L"",
 548                                 L"",
 549                                 258+m_fields.size()
 550                         );
 551
 552                 bool is_horizontal = true;
 553
 554                 if (parts[2] == "vertical")
 555                         is_horizontal = false;
 556
 557                 spec.ftype = f_ScrollBar;
 558                 spec.send  = true;
 559                 gui::IGUIScrollBar* e =
 560                                 Environment->addScrollBar(is_horizontal,rect,this,spec.fid);
 561
 562                 auto style = getStyleForElement("scrollbar", name);
 563                 e->setNotClipped(style.getBool(StyleSpec::NOCLIP, false));
 564
 565                 e->setMax(1000);
 566                 e->setMin(0);
 567                 e->setPos(stoi(parts[4]));
 568                 e->setSmallStep(10);
 569                 e->setLargeStep(100);
 570
 571                 m_scrollbars.emplace_back(spec,e);
 572                 m_fields.push_back(spec);
 573                 return;
 574         }
 575         errorstream<< "Invalid scrollbar element(" << parts.size() << "): '" << element << "'"  << std::endl;
 576 }
 577
 578 void GUIFormSpecMenu::parseImage(parserData* data, const std::string &element)
 579 {
 580         std::vector<std::string> parts = split(element,';');
 581
 582         if ((parts.size() == 3) ||
 583                 ((parts.size() > 3) && (m_formspec_version > FORMSPEC_API_VERSION)))
 584         {
 585                 std::vector<std::string> v_pos = split(parts[0],',');
 586                 std::vector<std::string> v_geom = split(parts[1],',');
 587                 std::string name = unescape_string(parts[2]);
 588
 589                 MY_CHECKPOS("image", 0);
 590                 MY_CHECKGEOM("image", 1);
 591
 592                 v2s32 pos;
 593                 v2s32 geom;
 594
 595                 if (data->real_coordinates) {
 596                         pos = getRealCoordinateBasePos(true, v_pos);
 597                         geom = getRealCoordinateGeometry(v_geom);
 598                 } else {
 599                         pos = getElementBasePos(true, &v_pos);
 600                         geom.X = stof(v_geom[0]) * (float)imgsize.X;
 601                         geom.Y = stof(v_geom[1]) * (float)imgsize.Y;
 602                 }
 603
 604                 if (!data->explicit_size)
 605                         warningstream<<"invalid use of image without a size[] element"<<std::endl;
 606                 m_images.emplace_back(name, pos, geom);
 607                 return;
 608         }
 609
 610         if (parts.size() == 2) {
 611                 std::vector<std::string> v_pos = split(parts[0],',');
 612                 std::string name = unescape_string(parts[1]);
 613
 614                 MY_CHECKPOS("image", 0);
 615
 616                 v2s32 pos = getElementBasePos(true, &v_pos);
 617
 618                 if (!data->explicit_size)
 619                         warningstream<<"invalid use of image without a size[] element"<<std::endl;
 620                 m_images.emplace_back(name, pos);
 621                 return;
 622         }
 623         errorstream<< "Invalid image element(" << parts.size() << "): '" << element << "'"  << std::endl;
 624 }
 625
 626 void GUIFormSpecMenu::parseItemImage(parserData* data, const std::string &element)
 627 {
 628         std::vector<std::string> parts = split(element,';');
 629
 630         if ((parts.size() == 3) ||
 631                 ((parts.size() > 3) && (m_formspec_version > FORMSPEC_API_VERSION)))
 632         {
 633                 std::vector<std::string> v_pos = split(parts[0],',');
 634                 std::vector<std::string> v_geom = split(parts[1],',');
 635                 std::string name = parts[2];
 636
 637                 MY_CHECKPOS("itemimage",0);
 638                 MY_CHECKGEOM("itemimage",1);
 639
 640                 v2s32 pos;
 641                 v2s32 geom;
 642
 643                 if (data->real_coordinates) {
 644                         pos = getRealCoordinateBasePos(true, v_pos);
 645                         geom = getRealCoordinateGeometry(v_geom);
 646                 } else {
 647                         pos = getElementBasePos(true, &v_pos);
 648                         geom.X = stof(v_geom[0]) * (float)imgsize.X;
 649                         geom.Y = stof(v_geom[1]) * (float)imgsize.Y;
 650                 }
 651
 652                 if(!data->explicit_size)
 653                         warningstream<<"invalid use of item_image without a size[] element"<<std::endl;
 654                 m_itemimages.emplace_back("", name, pos, geom);
 655                 return;
 656         }
 657         errorstream<< "Invalid ItemImage element(" << parts.size() << "): '" << element << "'"  << std::endl;
 658 }
 659
 660 void GUIFormSpecMenu::parseButton(parserData* data, const std::string &element,
 661                 const std::string &type)
 662 {
 663         std::vector<std::string> parts = split(element,';');
 664
 665         if ((parts.size() == 4) ||
 666                 ((parts.size() > 4) && (m_formspec_version > FORMSPEC_API_VERSION)))
 667         {
 668                 std::vector<std::string> v_pos = split(parts[0],',');
 669                 std::vector<std::string> v_geom = split(parts[1],',');
 670                 std::string name = parts[2];
 671                 std::string label = parts[3];
 672
 673                 MY_CHECKPOS("button",0);
 674                 MY_CHECKGEOM("button",1);
 675
 676                 v2s32 pos;
 677                 v2s32 geom;
 678                 core::rect<s32> rect;
 679
 680                 if (data->real_coordinates) {
 681                         pos = getRealCoordinateBasePos(false, v_pos);
 682                         geom = getRealCoordinateGeometry(v_geom);
 683                         rect = core::rect<s32>(pos.X, pos.Y, pos.X+geom.X,
 684                                 pos.Y+geom.Y);
 685                 } else {
 686                         pos = getElementBasePos(false, &v_pos);
 687                         geom.X = (stof(v_geom[0]) * spacing.X) - (spacing.X - imgsize.X);
 688                         pos.Y += (stof(v_geom[1]) * (float)imgsize.Y)/2;
 689
 690                         rect = core::rect<s32>(pos.X, pos.Y - m_btn_height,
 691                                                 pos.X + geom.X, pos.Y + m_btn_height);
 692                 }
 693
 694                 if(!data->explicit_size)
 695                         warningstream<<"invalid use of button without a size[] element"<<std::endl;
 696
 697                 std::wstring wlabel = translate_string(utf8_to_wide(unescape_string(label)));
 698
 699                 FieldSpec spec(
 700                         name,
 701                         wlabel,
 702                         L"",
 703                         258+m_fields.size()
 704                 );
 705                 spec.ftype = f_Button;
 706                 if(type == "button_exit")
 707                         spec.is_exit = true;
 708
 709                 GUIButton *e = GUIButton::addButton(Environment, rect, this, spec.fid, spec.flabel.c_str());
 710
 711                 auto style = getStyleForElement(type, name, (type != "button") ? "button" : "");
 712                 if (style.isNotDefault(StyleSpec::BGCOLOR)) {
 713                         e->setColor(style.getColor(StyleSpec::BGCOLOR));
 714                 }
 715                 if (style.isNotDefault(StyleSpec::TEXTCOLOR)) {
 716                         e->setOverrideColor(style.getColor(StyleSpec::TEXTCOLOR));
 717                 }
 718                 e->setNotClipped(style.getBool(StyleSpec::NOCLIP, false));
 719                 e->setDrawBorder(style.getBool(StyleSpec::BORDER, true));
 720
 721                 if (style.isNotDefault(StyleSpec::BGIMG)) {
 722                         std::string image_name = style.get(StyleSpec::BGIMG, "");
 723                         std::string pressed_image_name = style.get(StyleSpec::BGIMG_PRESSED, "");
 724
 725                         video::ITexture *texture = 0;
 726                         video::ITexture *pressed_texture = 0;
 727                         texture = m_tsrc->getTexture(image_name);
 728                         if (!pressed_image_name.empty())
 729                                 pressed_texture = m_tsrc->getTexture(pressed_image_name);
 730                         else
 731                                 pressed_texture = texture;
 732
 733                         e->setUseAlphaChannel(style.getBool(StyleSpec::ALPHA, true));
 734                         e->setImage(guiScalingImageButton(
 735                                         Environment->getVideoDriver(), texture, geom.X, geom.Y));
 736                         e->setPressedImage(guiScalingImageButton(
 737                                         Environment->getVideoDriver(), pressed_texture, geom.X, geom.Y));
 738                         e->setScaleImage(true);
 739                 }
 740
 741                 if (spec.fname == data->focused_fieldname) {
 742                         Environment->setFocus(e);
 743                 }
 744
 745                 m_fields.push_back(spec);
 746                 return;
 747         }
 748         errorstream<< "Invalid button element(" << parts.size() << "): '" << element << "'"  << std::endl;
 749 }
 750
 751 void GUIFormSpecMenu::parseBackground(parserData* data, const std::string &element)
 752 {
 753         std::vector<std::string> parts = split(element,';');
 754
 755         if ((parts.size() >= 3 && parts.size() <= 5) ||
 756                         (parts.size() > 5 && m_formspec_version > FORMSPEC_API_VERSION)) {
 757                 std::vector<std::string> v_pos = split(parts[0],',');
 758                 std::vector<std::string> v_geom = split(parts[1],',');
 759                 std::string name = unescape_string(parts[2]);
 760
 761                 MY_CHECKPOS("background",0);
 762                 MY_CHECKGEOM("background",1);
 763
 764                 v2s32 pos;
 765                 v2s32 geom;
 766
 767                 if (data->real_coordinates) {
 768                         pos = getRealCoordinateBasePos(true, v_pos);
 769                         geom = getRealCoordinateGeometry(v_geom);
 770                 } else {
 771                         pos = getElementBasePos(true, &v_pos);
 772                         pos.X -= (spacing.X - (float)imgsize.X) / 2;
 773                         pos.Y -= (spacing.Y - (float)imgsize.Y) / 2;
 774
 775                         geom.X = stof(v_geom[0]) * spacing.X;
 776                         geom.Y = stof(v_geom[1]) * spacing.Y;
 777                 }
 778
 779                 bool clip = false;
 780                 if (parts.size() >= 4 && is_yes(parts[3])) {
 781                         if (data->real_coordinates) {
 782                                 pos = getRealCoordinateBasePos(false, v_pos) * -1;
 783                                 geom = v2s32(0, 0);
 784                         } else {
 785                                 pos.X = stoi(v_pos[0]); //acts as offset
 786                                 pos.Y = stoi(v_pos[1]);
 787                         }
 788                         clip = true;
 789                 }
 790
 791                 core::rect<s32> middle;
 792                 if (parts.size() >= 5) {
 793                         std::vector<std::string> v_middle = split(parts[4], ',');
 794                         if (v_middle.size() == 1) {
 795                                 s32 x = stoi(v_middle[0]);
 796                                 middle.UpperLeftCorner = core::vector2di(x, x);
 797                                 middle.LowerRightCorner = core::vector2di(-x, -x);
 798                         } else if (v_middle.size() == 2) {
 799                                 s32 x = stoi(v_middle[0]);
 800                                 s32 y = stoi(v_middle[1]);
 801                                 middle.UpperLeftCorner = core::vector2di(x, y);
 802                                 middle.LowerRightCorner = core::vector2di(-x, -y);
 803                                 // `-x` is interpreted as `w - x`
 804                         } else if (v_middle.size() == 4) {
 805                                 middle.UpperLeftCorner = core::vector2di(stoi(v_middle[0]), stoi(v_middle[1]));
 806                                 middle.LowerRightCorner = core::vector2di(stoi(v_middle[2]), stoi(v_middle[3]));
 807                         } else {
 808                                 warningstream << "Invalid rectangle given to middle param of background[] element" << std::endl;
 809                         }
 810                 }
 811
 812                 if (!data->explicit_size && !clip)
 813                         warningstream << "invalid use of unclipped background without a size[] element" << std::endl;
 814
 815                 m_backgrounds.emplace_back(name, pos, geom, middle, clip);
 816
 817                 return;
 818         }
 819         errorstream<< "Invalid background element(" << parts.size() << "): '" << element << "'"  << std::endl;
 820 }
 821
 822 void GUIFormSpecMenu::parseTableOptions(parserData* data, const std::string &element)
 823 {
 824         std::vector<std::string> parts = split(element,';');
 825
 826         data->table_options.clear();
 827         for (const std::string &part : parts) {
 828                 // Parse table option
 829                 std::string opt = unescape_string(part);
 830                 data->table_options.push_back(GUITable::splitOption(opt));
 831         }
 832 }
 833
 834 void GUIFormSpecMenu::parseTableColumns(parserData* data, const std::string &element)
 835 {
 836         std::vector<std::string> parts = split(element,';');
 837
 838         data->table_columns.clear();
 839         for (const std::string &part : parts) {
 840                 std::vector<std::string> col_parts = split(part,',');
 841                 GUITable::TableColumn column;
 842                 // Parse column type
 843                 if (!col_parts.empty())
 844                         column.type = col_parts[0];
 845                 // Parse column options
 846                 for (size_t j = 1; j < col_parts.size(); ++j) {
 847                         std::string opt = unescape_string(col_parts[j]);
 848                         column.options.push_back(GUITable::splitOption(opt));
 849                 }
 850                 data->table_columns.push_back(column);
 851         }
 852 }
 853
 854 void GUIFormSpecMenu::parseTable(parserData* data, const std::string &element)
 855 {
 856         std::vector<std::string> parts = split(element,';');
 857
 858         if (((parts.size() == 4) || (parts.size() == 5)) ||
 859                 ((parts.size() > 5) && (m_formspec_version > FORMSPEC_API_VERSION)))
 860         {
 861                 std::vector<std::string> v_pos = split(parts[0],',');
 862                 std::vector<std::string> v_geom = split(parts[1],',');
 863                 std::string name = parts[2];
 864                 std::vector<std::string> items = split(parts[3],',');
 865                 std::string str_initial_selection;
 866                 std::string str_transparent = "false";
 867
 868                 if (parts.size() >= 5)
 869                         str_initial_selection = parts[4];
 870
 871                 MY_CHECKPOS("table",0);
 872                 MY_CHECKGEOM("table",1);
 873
 874                 v2s32 pos;
 875                 v2s32 geom;
 876
 877                 if (data->real_coordinates) {
 878                         pos = getRealCoordinateBasePos(false, v_pos);
 879                         geom = getRealCoordinateGeometry(v_geom);
 880                 } else {
 881                         pos = getElementBasePos(false, &v_pos);
 882                         geom.X = stof(v_geom[0]) * spacing.X;
 883                         geom.Y = stof(v_geom[1]) * spacing.Y;
 884                 }
 885
 886                 core::rect<s32> rect = core::rect<s32>(pos.X, pos.Y, pos.X+geom.X, pos.Y+geom.Y);
 887
 888                 FieldSpec spec(
 889                         name,
 890                         L"",
 891                         L"",
 892                         258+m_fields.size()
 893                 );
 894
 895                 spec.ftype = f_Table;
 896
 897                 for (std::string &item : items) {
 898                         item = wide_to_utf8(unescape_translate(utf8_to_wide(unescape_string(item))));
 899                 }
 900
 901                 //now really show table
 902                 GUITable *e = new GUITable(Environment, this, spec.fid, rect,
 903                                 m_tsrc);
 904
 905                 if (spec.fname == data->focused_fieldname) {
 906                         Environment->setFocus(e);
 907                 }
 908
 909                 e->setTable(data->table_options, data->table_columns, items);
 910
 911                 if (data->table_dyndata.find(name) != data->table_dyndata.end()) {
 912                         e->setDynamicData(data->table_dyndata[name]);
 913                 }
 914
 915                 if (!str_initial_selection.empty() && str_initial_selection != "0")
 916                         e->setSelected(stoi(str_initial_selection));
 917
 918                 auto style = getStyleForElement("table", name);
 919                 e->setNotClipped(style.getBool(StyleSpec::NOCLIP, false));
 920
 921                 m_tables.emplace_back(spec, e);
 922                 m_fields.push_back(spec);
 923                 return;
 924         }
 925         errorstream<< "Invalid table element(" << parts.size() << "): '" << element << "'"  << std::endl;
 926 }
 927
 928 void GUIFormSpecMenu::parseTextList(parserData* data, const std::string &element)
 929 {
 930         std::vector<std::string> parts = split(element,';');
 931
 932         if (((parts.size() == 4) || (parts.size() == 5) || (parts.size() == 6)) ||
 933                 ((parts.size() > 6) && (m_formspec_version > FORMSPEC_API_VERSION)))
 934         {
 935                 std::vector<std::string> v_pos = split(parts[0],',');
 936                 std::vector<std::string> v_geom = split(parts[1],',');
 937                 std::string name = parts[2];
 938                 std::vector<std::string> items = split(parts[3],',');
 939                 std::string str_initial_selection;
 940                 std::string str_transparent = "false";
 941
 942                 if (parts.size() >= 5)
 943                         str_initial_selection = parts[4];
 944
 945                 if (parts.size() >= 6)
 946                         str_transparent = parts[5];
 947
 948                 MY_CHECKPOS("textlist",0);
 949                 MY_CHECKGEOM("textlist",1);
 950
 951                 v2s32 pos;
 952                 v2s32 geom;
 953
 954                 if (data->real_coordinates) {
 955                         pos = getRealCoordinateBasePos(false, v_pos);
 956                         geom = getRealCoordinateGeometry(v_geom);
 957                 } else {
 958                         pos = getElementBasePos(false, &v_pos);
 959                         geom.X = stof(v_geom[0]) * spacing.X;
 960                         geom.Y = stof(v_geom[1]) * spacing.Y;
 961                 }
 962
 963                 core::rect<s32> rect = core::rect<s32>(pos.X, pos.Y, pos.X+geom.X, pos.Y+geom.Y);
 964
 965                 FieldSpec spec(
 966                         name,
 967                         L"",
 968                         L"",
 969                         258+m_fields.size()
 970                 );
 971
 972                 spec.ftype = f_Table;
 973
 974                 for (std::string &item : items) {
 975                         item = wide_to_utf8(unescape_translate(utf8_to_wide(unescape_string(item))));
 976                 }
 977
 978                 //now really show list
 979                 GUITable *e = new GUITable(Environment, this, spec.fid, rect,
 980                                 m_tsrc);
 981
 982                 if (spec.fname == data->focused_fieldname) {
 983                         Environment->setFocus(e);
 984                 }
 985
 986                 e->setTextList(items, is_yes(str_transparent));
 987
 988                 if (data->table_dyndata.find(name) != data->table_dyndata.end()) {
 989                         e->setDynamicData(data->table_dyndata[name]);
 990                 }
 991
 992                 if (!str_initial_selection.empty() && str_initial_selection != "0")
 993                         e->setSelected(stoi(str_initial_selection));
 994
 995                 auto style = getStyleForElement("textlist", name);
 996                 e->setNotClipped(style.getBool(StyleSpec::NOCLIP, false));
 997
 998                 m_tables.emplace_back(spec, e);
 999                 m_fields.push_back(spec);
1000                 return;
1001         }
1002         errorstream<< "Invalid textlist element(" << parts.size() << "): '" << element << "'"  << std::endl;
1003 }
1004
1005
1006 void GUIFormSpecMenu::parseDropDown(parserData* data, const std::string &element)
1007 {
1008         std::vector<std::string> parts = split(element,';');
1009
1010         if ((parts.size() == 5) ||
1011                 ((parts.size() > 5) && (m_formspec_version > FORMSPEC_API_VERSION)))
1012         {
1013                 std::vector<std::string> v_pos = split(parts[0],',');
1014                 std::string name = parts[2];
1015                 std::vector<std::string> items = split(parts[3],',');
1016                 std::string str_initial_selection;
1017                 str_initial_selection = parts[4];
1018
1019                 MY_CHECKPOS("dropdown",0);
1020
1021                 v2s32 pos;
1022                 v2s32 geom;
1023                 core::rect<s32> rect;
1024
1025                 if (data->real_coordinates) {
1026                         std::vector<std::string> v_geom = split(parts[1],',');
1027
1028                         if (v_geom.size() == 1)
1029                                 v_geom.emplace_back("1");
1030
1031                         MY_CHECKGEOM("dropdown",1);
1032
1033                         pos = getRealCoordinateBasePos(false, v_pos);
1034                         geom = getRealCoordinateGeometry(v_geom);
1035                         rect = core::rect<s32>(pos.X, pos.Y, pos.X+geom.X, pos.Y+geom.Y);
1036                 } else {
1037                         pos = getElementBasePos(false, &v_pos);
1038
1039                         s32 width = stof(parts[1]) * spacing.Y;
1040
1041                         rect = core::rect<s32>(pos.X, pos.Y,
1042                                         pos.X + width, pos.Y + (m_btn_height * 2));
1043                 }
1044
1045                 FieldSpec spec(
1046                         name,
1047                         L"",
1048                         L"",
1049                         258+m_fields.size()
1050                 );
1051
1052                 spec.ftype = f_DropDown;
1053                 spec.send = true;
1054
1055                 //now really show list
1056                 gui::IGUIComboBox *e = Environment->addComboBox(rect, this,spec.fid);
1057
1058                 if (spec.fname == data->focused_fieldname) {
1059                         Environment->setFocus(e);
1060                 }
1061
1062                 for (const std::string &item : items) {
1063                         e->addItem(unescape_translate(unescape_string(
1064                                 utf8_to_wide(item))).c_str());
1065                 }
1066
1067                 if (!str_initial_selection.empty())
1068                         e->setSelected(stoi(str_initial_selection)-1);
1069
1070                 auto style = getStyleForElement("dropdown", name);
1071                 e->setNotClipped(style.getBool(StyleSpec::NOCLIP, false));
1072
1073                 m_fields.push_back(spec);
1074
1075                 m_dropdowns.emplace_back(spec, std::vector<std::string>());
1076                 std::vector<std::string> &values = m_dropdowns.back().second;
1077                 for (const std::string &item : items) {
1078                         values.push_back(unescape_string(item));
1079                 }
1080
1081                 return;
1082         }
1083         errorstream << "Invalid dropdown element(" << parts.size() << "): '"
1084                                 << element << "'"  << std::endl;
1085 }
1086
1087 void GUIFormSpecMenu::parseFieldCloseOnEnter(parserData *data, const std::string &element)
1088 {
1089         std::vector<std::string> parts = split(element,';');
1090         if (parts.size() == 2 ||
1091                         (parts.size() > 2 && m_formspec_version > FORMSPEC_API_VERSION)) {
1092                 field_close_on_enter[parts[0]] = is_yes(parts[1]);
1093         }
1094 }
1095
1096 void GUIFormSpecMenu::parsePwdField(parserData* data, const std::string &element)
1097 {
1098         std::vector<std::string> parts = split(element,';');
1099
1100         if ((parts.size() == 4) || (parts.size() == 5) ||
1101                 ((parts.size() > 5) && (m_formspec_version > FORMSPEC_API_VERSION)))
1102         {
1103                 std::vector<std::string> v_pos = split(parts[0],',');
1104                 std::vector<std::string> v_geom = split(parts[1],',');
1105                 std::string name = parts[2];
1106                 std::string label = parts[3];
1107
1108                 MY_CHECKPOS("pwdfield",0);
1109                 MY_CHECKGEOM("pwdfield",1);
1110
1111                 v2s32 pos;
1112                 v2s32 geom;
1113
1114                 if (data->real_coordinates) {
1115                         pos = getRealCoordinateBasePos(false, v_pos);
1116                         geom = getRealCoordinateGeometry(v_geom);
1117                 } else {
1118                         pos = getElementBasePos(false, &v_pos);
1119                         pos -= padding;
1120
1121                         geom.X = (stof(v_geom[0]) * spacing.X) - (spacing.X - imgsize.X);
1122
1123                         pos.Y += (stof(v_geom[1]) * (float)imgsize.Y)/2;
1124                         pos.Y -= m_btn_height;
1125                         geom.Y = m_btn_height*2;
1126                 }
1127
1128                 core::rect<s32> rect = core::rect<s32>(pos.X, pos.Y, pos.X+geom.X, pos.Y+geom.Y);
1129
1130                 std::wstring wlabel = translate_string(utf8_to_wide(unescape_string(label)));
1131
1132                 FieldSpec spec(
1133                         name,
1134                         wlabel,
1135                         L"",
1136                         258+m_fields.size()
1137                         );
1138
1139                 spec.send = true;
1140                 gui::IGUIEditBox * e = Environment->addEditBox(0, rect, true, this, spec.fid);
1141
1142                 if (spec.fname == data->focused_fieldname) {
1143                         Environment->setFocus(e);
1144                 }
1145
1146                 if (label.length() >= 1) {
1147                         int font_height = g_fontengine->getTextHeight();
1148                         rect.UpperLeftCorner.Y -= font_height;
1149                         rect.LowerRightCorner.Y = rect.UpperLeftCorner.Y + font_height;
1150                         gui::StaticText::add(Environment, spec.flabel.c_str(), rect, false, true,
1151                                 this, 0);
1152                 }
1153
1154                 e->setPasswordBox(true,L'*');
1155
1156                 auto style = getStyleForElement("pwdfield", name, "field");
1157                 e->setNotClipped(style.getBool(StyleSpec::NOCLIP, false));
1158                 e->setDrawBorder(style.getBool(StyleSpec::BORDER, true));
1159                 e->setOverrideColor(style.getColor(StyleSpec::TEXTCOLOR, video::SColor(0xFFFFFFFF)));
1160
1161                 irr::SEvent evt;
1162                 evt.EventType            = EET_KEY_INPUT_EVENT;
1163                 evt.KeyInput.Key         = KEY_END;
1164                 evt.KeyInput.Char        = 0;
1165                 evt.KeyInput.Control     = false;
1166                 evt.KeyInput.Shift       = false;
1167                 evt.KeyInput.PressedDown = true;
1168                 e->OnEvent(evt);
1169
1170                 if (parts.size() >= 5) {
1171                         // TODO: remove after 2016-11-03
1172                         warningstream << "pwdfield: use field_close_on_enter[name, enabled]" <<
1173                                         " instead of the 5th param" << std::endl;
1174                         field_close_on_enter[name] = is_yes(parts[4]);
1175                 }
1176
1177                 m_fields.push_back(spec);
1178                 return;
1179         }
1180         errorstream<< "Invalid pwdfield element(" << parts.size() << "): '" << element << "'"  << std::endl;
1181 }
1182
1183 void GUIFormSpecMenu::createTextField(parserData *data, FieldSpec &spec,
1184         core::rect<s32> &rect, bool is_multiline)
1185 {
1186         bool is_editable = !spec.fname.empty();
1187         if (!is_editable && !is_multiline) {
1188                 // spec field id to 0, this stops submit searching for a value that isn't there
1189                 gui::StaticText::add(Environment, spec.flabel.c_str(), rect, false, true,
1190                         this, spec.fid);
1191                 return;
1192         }
1193
1194         if (is_editable) {
1195                 spec.send = true;
1196         } else if (is_multiline &&
1197                         spec.fdefault.empty() && !spec.flabel.empty()) {
1198                 // Multiline textareas: swap default and label for backwards compat
1199                 spec.flabel.swap(spec.fdefault);
1200         }
1201
1202         gui::IGUIEditBox *e = nullptr;
1203         static constexpr bool use_intl_edit_box = USE_FREETYPE &&
1204                 IRRLICHT_VERSION_MAJOR == 1 && IRRLICHT_VERSION_MINOR < 9;
1205
1206         if (use_intl_edit_box && g_settings->getBool("freetype")) {
1207                 e = new gui::intlGUIEditBox(spec.fdefault.c_str(),
1208                         true, Environment, this, spec.fid, rect, is_editable, is_multiline);
1209                 e->drop();
1210         } else {
1211                 if (is_multiline)
1212                         e = new GUIEditBoxWithScrollBar(spec.fdefault.c_str(), true,
1213                                 Environment, this, spec.fid, rect, is_editable, true);
1214                 else if (is_editable)
1215                         e = Environment->addEditBox(spec.fdefault.c_str(), rect, true,
1216                                 this, spec.fid);
1217         }
1218
1219         if (e) {
1220                 if (is_editable && spec.fname == data->focused_fieldname)
1221                         Environment->setFocus(e);
1222
1223                 if (is_multiline) {
1224                         e->setMultiLine(true);
1225                         e->setWordWrap(true);
1226                         e->setTextAlignment(gui::EGUIA_UPPERLEFT, gui::EGUIA_UPPERLEFT);
1227                 } else {
1228                         irr::SEvent evt;
1229                         evt.EventType            = EET_KEY_INPUT_EVENT;
1230                         evt.KeyInput.Key         = KEY_END;
1231                         evt.KeyInput.Char        = 0;
1232                         evt.KeyInput.Control     = 0;
1233                         evt.KeyInput.Shift       = 0;
1234                         evt.KeyInput.PressedDown = true;
1235                         e->OnEvent(evt);
1236                 }
1237
1238                 auto style = getStyleForElement(is_multiline ? "textarea" : "field", spec.fname);
1239                 e->setNotClipped(style.getBool(StyleSpec::NOCLIP, false));
1240                 e->setDrawBorder(style.getBool(StyleSpec::BORDER, true));
1241                 e->setOverrideColor(style.getColor(StyleSpec::TEXTCOLOR, video::SColor(0xFFFFFFFF)));
1242                 if (style.get(StyleSpec::BGCOLOR, "") == "transparent") {
1243                         e->setDrawBackground(false);
1244                 }
1245         }
1246
1247         if (!spec.flabel.empty()) {
1248                 int font_height = g_fontengine->getTextHeight();
1249                 rect.UpperLeftCorner.Y -= font_height;
1250                 rect.LowerRightCorner.Y = rect.UpperLeftCorner.Y + font_height;
1251                 gui::StaticText::add(Environment, spec.flabel.c_str(), rect, false, true,
1252                         this, 0);
1253         }
1254 }
1255
1256 void GUIFormSpecMenu::parseSimpleField(parserData* data,
1257                 std::vector<std::string> &parts)
1258 {
1259         std::string name = parts[0];
1260         std::string label = parts[1];
1261         std::string default_val = parts[2];
1262
1263         core::rect<s32> rect;
1264
1265         if(data->explicit_size)
1266                 warningstream<<"invalid use of unpositioned \"field\" in inventory"<<std::endl;
1267
1268         v2s32 pos = getElementBasePos(false, nullptr);
1269         pos.Y = ((m_fields.size()+2)*60);
1270         v2s32 size = DesiredRect.getSize();
1271
1272         rect = core::rect<s32>(size.X / 2 - 150, pos.Y,
1273                         (size.X / 2 - 150) + 300, pos.Y + (m_btn_height*2));
1274
1275
1276         if(m_form_src)
1277                 default_val = m_form_src->resolveText(default_val);
1278
1279
1280         std::wstring wlabel = translate_string(utf8_to_wide(unescape_string(label)));
1281
1282         FieldSpec spec(
1283                 name,
1284                 wlabel,
1285                 utf8_to_wide(unescape_string(default_val)),
1286                 258+m_fields.size()
1287         );
1288
1289         createTextField(data, spec, rect, false);
1290
1291         if (parts.size() >= 4) {
1292                 // TODO: remove after 2016-11-03
1293                 warningstream << "field/simple: use field_close_on_enter[name, enabled]" <<
1294                                 " instead of the 4th param" << std::endl;
1295                 field_close_on_enter[name] = is_yes(parts[3]);
1296         }
1297
1298         m_fields.push_back(spec);
1299 }
1300
1301 void GUIFormSpecMenu::parseTextArea(parserData* data, std::vector<std::string>& parts,
1302                 const std::string &type)
1303 {
1304
1305         std::vector<std::string> v_pos = split(parts[0],',');
1306         std::vector<std::string> v_geom = split(parts[1],',');
1307         std::string name = parts[2];
1308         std::string label = parts[3];
1309         std::string default_val = parts[4];
1310
1311         MY_CHECKPOS(type,0);
1312         MY_CHECKGEOM(type,1);
1313
1314         v2s32 pos;
1315         v2s32 geom;
1316
1317         if (data->real_coordinates) {
1318                 pos = getRealCoordinateBasePos(false, v_pos);
1319                 geom = getRealCoordinateGeometry(v_geom);
1320         } else {
1321                 pos = getElementBasePos(false, &v_pos);
1322                 pos -= padding;
1323
1324                 geom.X = (stof(v_geom[0]) * spacing.X) - (spacing.X - imgsize.X);
1325
1326                 if (type == "textarea")
1327                 {
1328                         geom.Y = (stof(v_geom[1]) * (float)imgsize.Y) - (spacing.Y-imgsize.Y);
1329                         pos.Y += m_btn_height;
1330                 }
1331                 else
1332                 {
1333                         pos.Y += (stof(v_geom[1]) * (float)imgsize.Y)/2;
1334                         pos.Y -= m_btn_height;
1335                         geom.Y = m_btn_height*2;
1336                 }
1337         }
1338
1339         core::rect<s32> rect = core::rect<s32>(pos.X, pos.Y, pos.X+geom.X, pos.Y+geom.Y);
1340
1341         if(!data->explicit_size)
1342                 warningstream<<"invalid use of positioned "<<type<<" without a size[] element"<<std::endl;
1343
1344         if(m_form_src)
1345                 default_val = m_form_src->resolveText(default_val);
1346
1347
1348         std::wstring wlabel = translate_string(utf8_to_wide(unescape_string(label)));
1349
1350         FieldSpec spec(
1351                 name,
1352                 wlabel,
1353                 utf8_to_wide(unescape_string(default_val)),
1354                 258+m_fields.size()
1355         );
1356
1357         createTextField(data, spec, rect, type == "textarea");
1358
1359         if (parts.size() >= 6) {
1360                 // TODO: remove after 2016-11-03
1361                 warningstream << "field/textarea: use field_close_on_enter[name, enabled]" <<
1362                                 " instead of the 6th param" << std::endl;
1363                 field_close_on_enter[name] = is_yes(parts[5]);
1364         }
1365
1366         m_fields.push_back(spec);
1367 }
1368
1369 void GUIFormSpecMenu::parseField(parserData* data, const std::string &element,
1370                 const std::string &type)
1371 {
1372         std::vector<std::string> parts = split(element,';');
1373
1374         if (parts.size() == 3 || parts.size() == 4) {
1375                 parseSimpleField(data,parts);
1376                 return;
1377         }
1378
1379         if ((parts.size() == 5) || (parts.size() == 6) ||
1380                 ((parts.size() > 6) && (m_formspec_version > FORMSPEC_API_VERSION)))
1381         {
1382                 parseTextArea(data,parts,type);
1383                 return;
1384         }
1385         errorstream<< "Invalid field element(" << parts.size() << "): '" << element << "'"  << std::endl;
1386 }
1387
1388 void GUIFormSpecMenu::parseLabel(parserData* data, const std::string &element)
1389 {
1390         std::vector<std::string> parts = split(element,';');
1391
1392         if ((parts.size() == 2) ||
1393                 ((parts.size() > 2) && (m_formspec_version > FORMSPEC_API_VERSION)))
1394         {
1395                 std::vector<std::string> v_pos = split(parts[0],',');
1396                 std::string text = parts[1];
1397
1398                 MY_CHECKPOS("label",0);
1399
1400                 if(!data->explicit_size)
1401                         warningstream<<"invalid use of label without a size[] element"<<std::endl;
1402
1403                 std::vector<std::string> lines = split(text, '\n');
1404
1405                 for (unsigned int i = 0; i != lines.size(); i++) {
1406                         std::wstring wlabel = unescape_translate(unescape_string(
1407                                 utf8_to_wide(lines[i])));
1408
1409                         core::rect<s32> rect;
1410
1411                         if (data->real_coordinates) {
1412                                 // Lines are spaced at the distance of 1/2 imgsize.
1413                                 // This alows lines that line up with the new elements
1414                                 // easily without sacrificing good line distance.  If
1415                                 // it was one whole imgsize, it would have too much
1416                                 // spacing.
1417                                 v2s32 pos = getRealCoordinateBasePos(false, v_pos);
1418
1419                                 // Labels are positioned by their center, not their top.
1420                                 pos.Y += (((float) imgsize.Y) / -2) + (((float) imgsize.Y) * i / 2);
1421
1422                                 rect = core::rect<s32>(
1423                                         pos.X, pos.Y,
1424                                         pos.X + m_font->getDimension(wlabel.c_str()).Width,
1425                                         pos.Y + imgsize.Y);
1426
1427                         } else {
1428                                 // Lines are spaced at the nominal distance of
1429                                 // 2/5 inventory slot, even if the font doesn't
1430                                 // quite match that.  This provides consistent
1431                                 // form layout, at the expense of sometimes
1432                                 // having sub-optimal spacing for the font.
1433                                 // We multiply by 2 and then divide by 5, rather
1434                                 // than multiply by 0.4, to get exact results
1435                                 // in the integer cases: 0.4 is not exactly
1436                                 // representable in binary floating point.
1437
1438                                 v2s32 pos = getElementBasePos(false, nullptr);
1439                                 pos.X += stof(v_pos[0]) * spacing.X;
1440                                 pos.Y += (stof(v_pos[1]) + 7.0f / 30.0f) * spacing.Y;
1441
1442                                 pos.Y += ((float) i) * spacing.Y * 2.0 / 5.0;
1443
1444                                 rect = core::rect<s32>(
1445                                         pos.X, pos.Y - m_btn_height,
1446                                         pos.X + m_font->getDimension(wlabel.c_str()).Width,
1447                                         pos.Y + m_btn_height);
1448                         }
1449
1450                         FieldSpec spec(
1451                                 "",
1452                                 wlabel,
1453                                 L"",
1454                                 258+m_fields.size()
1455                         );
1456                         gui::IGUIStaticText *e = gui::StaticText::add(Environment,
1457                                 spec.flabel.c_str(), rect, false, false, this, spec.fid);
1458                         e->setTextAlignment(gui::EGUIA_UPPERLEFT, gui::EGUIA_CENTER);
1459
1460                         auto style = getStyleForElement("label", spec.fname);
1461                         e->setNotClipped(style.getBool(StyleSpec::NOCLIP, false));
1462                         e->setOverrideColor(style.getColor(StyleSpec::TEXTCOLOR, video::SColor(0xFFFFFFFF)));
1463
1464                         m_fields.push_back(spec);
1465                 }
1466
1467                 return;
1468         }
1469         errorstream << "Invalid label element(" << parts.size() << "): '" << element
1470                 << "'"  << std::endl;
1471 }
1472
1473 void GUIFormSpecMenu::parseVertLabel(parserData* data, const std::string &element)
1474 {
1475         std::vector<std::string> parts = split(element,';');
1476
1477         if ((parts.size() == 2) ||
1478                 ((parts.size() > 2) && (m_formspec_version > FORMSPEC_API_VERSION)))
1479         {
1480                 std::vector<std::string> v_pos = split(parts[0],',');
1481                 std::wstring text = unescape_translate(
1482                         unescape_string(utf8_to_wide(parts[1])));
1483
1484                 MY_CHECKPOS("vertlabel",1);
1485
1486                 v2s32 pos;
1487                 core::rect<s32> rect;
1488
1489                 if (data->real_coordinates) {
1490                         pos = getRealCoordinateBasePos(false, v_pos);
1491
1492                         // Vertlabels are positioned by center, not left.
1493                         pos.X -= imgsize.X / 2;
1494
1495                         // We use text.length + 1 because without it, the rect
1496                         // isn't quite tall enough and cuts off the text.
1497                         rect = core::rect<s32>(pos.X, pos.Y,
1498                                 pos.X + imgsize.X,
1499                                 pos.Y + font_line_height(m_font) *
1500                                 (text.length() + 1));
1501
1502                 } else {
1503                         pos = getElementBasePos(false, &v_pos);
1504
1505                         // As above, the length must be one longer. The width of
1506                         // the rect (15 pixels) seems rather arbitrary, but
1507                         // changing it might break something.
1508                         rect = core::rect<s32>(
1509                                 pos.X, pos.Y+((imgsize.Y/2) - m_btn_height),
1510                                 pos.X+15, pos.Y +
1511                                         font_line_height(m_font) *
1512                                         (text.length() + 1) +
1513                                         ((imgsize.Y/2) - m_btn_height));
1514                 }
1515
1516                 if(!data->explicit_size)
1517                         warningstream<<"invalid use of label without a size[] element"<<std::endl;
1518
1519                 std::wstring label;
1520
1521                 for (wchar_t i : text) {
1522                         label += i;
1523                         label += L"\n";
1524                 }
1525
1526                 FieldSpec spec(
1527                         "",
1528                         label,
1529                         L"",
1530                         258+m_fields.size()
1531                 );
1532                 gui::IGUIStaticText *e = gui::StaticText::add(Environment, spec.flabel.c_str(),
1533                         rect, false, false, this, spec.fid);
1534                 e->setTextAlignment(gui::EGUIA_CENTER, gui::EGUIA_CENTER);
1535
1536                 auto style = getStyleForElement("vertlabel", spec.fname, "label");
1537                 e->setNotClipped(style.getBool(StyleSpec::NOCLIP, false));
1538                 e->setOverrideColor(style.getColor(StyleSpec::TEXTCOLOR, video::SColor(0xFFFFFFFF)));
1539
1540                 m_fields.push_back(spec);
1541                 return;
1542         }
1543         errorstream<< "Invalid vertlabel element(" << parts.size() << "): '" << element << "'"  << std::endl;
1544 }
1545
1546 void GUIFormSpecMenu::parseImageButton(parserData* data, const std::string &element,
1547                 const std::string &type)
1548 {
1549         std::vector<std::string> parts = split(element,';');
1550
1551         if ((((parts.size() >= 5) && (parts.size() <= 8)) && (parts.size() != 6)) ||
1552                 ((parts.size() > 8) && (m_formspec_version > FORMSPEC_API_VERSION)))
1553         {
1554                 std::vector<std::string> v_pos = split(parts[0],',');
1555                 std::vector<std::string> v_geom = split(parts[1],',');
1556                 std::string image_name = parts[2];
1557                 std::string name = parts[3];
1558                 std::string label = parts[4];
1559
1560                 MY_CHECKPOS("imagebutton",0);
1561                 MY_CHECKGEOM("imagebutton",1);
1562
1563                 bool noclip     = false;
1564                 bool drawborder = true;
1565                 std::string pressed_image_name;
1566
1567                 if (parts.size() >= 7) {
1568                         if (parts[5] == "true")
1569                                 noclip = true;
1570                         if (parts[6] == "false")
1571                                 drawborder = false;
1572                 }
1573
1574                 if (parts.size() >= 8) {
1575                         pressed_image_name = parts[7];
1576                 }
1577
1578                 v2s32 pos;
1579                 v2s32 geom;
1580
1581                 if (data->real_coordinates) {
1582                         pos = getRealCoordinateBasePos(false, v_pos);
1583                         geom = getRealCoordinateGeometry(v_geom);
1584                 } else {
1585                         pos = getElementBasePos(false, &v_pos);
1586                         geom.X = (stof(v_geom[0]) * spacing.X) - (spacing.X - imgsize.X);
1587                         geom.Y = (stof(v_geom[1]) * spacing.Y) - (spacing.Y - imgsize.Y);
1588                 }
1589
1590                 core::rect<s32> rect = core::rect<s32>(pos.X, pos.Y, pos.X+geom.X,
1591                         pos.Y+geom.Y);
1592
1593                 if (!data->explicit_size)
1594                         warningstream<<"invalid use of image_button without a size[] element"<<std::endl;
1595
1596                 image_name = unescape_string(image_name);
1597                 pressed_image_name = unescape_string(pressed_image_name);
1598
1599                 std::wstring wlabel = utf8_to_wide(unescape_string(label));
1600
1601                 FieldSpec spec(
1602                         name,
1603                         wlabel,
1604                         utf8_to_wide(image_name),
1605                         258+m_fields.size()
1606                 );
1607                 spec.ftype = f_Button;
1608                 if (type == "image_button_exit")
1609                         spec.is_exit = true;
1610
1611                 video::ITexture *texture = 0;
1612                 video::ITexture *pressed_texture = 0;
1613                 texture = m_tsrc->getTexture(image_name);
1614                 if (!pressed_image_name.empty())
1615                         pressed_texture = m_tsrc->getTexture(pressed_image_name);
1616                 else
1617                         pressed_texture = texture;
1618
1619                 gui::IGUIButton *e = Environment->addButton(rect, this, spec.fid, spec.flabel.c_str());
1620
1621                 if (spec.fname == data->focused_fieldname) {
1622                         Environment->setFocus(e);
1623                 }
1624
1625                 auto style = getStyleForElement("image_button", spec.fname);
1626
1627                 e->setUseAlphaChannel(style.getBool(StyleSpec::ALPHA, true));
1628                 e->setImage(guiScalingImageButton(
1629                         Environment->getVideoDriver(), texture, geom.X, geom.Y));
1630                 e->setPressedImage(guiScalingImageButton(
1631                         Environment->getVideoDriver(), pressed_texture, geom.X, geom.Y));
1632                 e->setScaleImage(true);
1633                 if (parts.size() >= 7) {
1634                         e->setNotClipped(noclip);
1635                         e->setDrawBorder(drawborder);
1636                 } else {
1637                         e->setNotClipped(style.getBool(StyleSpec::NOCLIP, false));
1638                         e->setDrawBorder(style.getBool(StyleSpec::BORDER, true));
1639                 }
1640
1641                 m_fields.push_back(spec);
1642                 return;
1643         }
1644
1645         errorstream<< "Invalid imagebutton element(" << parts.size() << "): '" << element << "'"  << std::endl;
1646 }
1647
1648 void GUIFormSpecMenu::parseTabHeader(parserData* data, const std::string &element)
1649 {
1650         std::vector<std::string> parts = split(element, ';');
1651
1652         if (((parts.size() == 4) || (parts.size() == 6)) || (parts.size() == 7 &&
1653                 data->real_coordinates) || ((parts.size() > 6) &&
1654                 (m_formspec_version > FORMSPEC_API_VERSION)))
1655         {
1656                 std::vector<std::string> v_pos = split(parts[0],',');
1657
1658                 // If we're using real coordinates, add an extra field for height.
1659                 // Width is not here because tabs are the width of the text, and
1660                 // there's no reason to change that.
1661                 unsigned int i = 0;
1662                 std::vector<std::string> v_geom = {"1", "0.75"}; // Dummy width and default height
1663                 bool auto_width = true;
1664                 if (parts.size() == 7) {
1665                         i++;
1666
1667                         v_geom = split(parts[1], ',');
1668                         if (v_geom.size() == 1)
1669                                 v_geom.insert(v_geom.begin(), "1"); // Dummy value
1670                         else
1671                                 auto_width = false;
1672                 }
1673
1674                 std::string name = parts[i+1];
1675                 std::vector<std::string> buttons = split(parts[i+2], ',');
1676                 std::string str_index = parts[i+3];
1677                 bool show_background = true;
1678                 bool show_border = true;
1679                 int tab_index = stoi(str_index) - 1;
1680
1681                 MY_CHECKPOS("tabheader", 0);
1682
1683                 if (parts.size() == 6 + i) {
1684                         if (parts[4+i] == "true")
1685                                 show_background = false;
1686                         if (parts[5+i] == "false")
1687                                 show_border = false;
1688                 }
1689
1690                 FieldSpec spec(
1691                         name,
1692                         L"",
1693                         L"",
1694                         258+m_fields.size()
1695                 );
1696
1697                 spec.ftype = f_TabHeader;
1698
1699                 v2s32 pos;
1700                 v2s32 geom;
1701
1702                 if (data->real_coordinates) {
1703                         pos = getRealCoordinateBasePos(false, v_pos);
1704
1705                         geom = getRealCoordinateGeometry(v_geom);
1706                         pos.Y -= geom.Y; // TabHeader base pos is the bottom, not the top.
1707                         if (auto_width)
1708                                 geom.X = DesiredRect.getWidth(); // Set automatic width
1709
1710                         MY_CHECKGEOM("tabheader", 1);
1711                 } else {
1712                         v2f32 pos_f = pos_offset * spacing;
1713                         pos_f.X += stof(v_pos[0]) * spacing.X;
1714                         pos_f.Y += stof(v_pos[1]) * spacing.Y - m_btn_height * 2;
1715                         pos = v2s32(pos_f.X, pos_f.Y);
1716
1717                         geom.Y = m_btn_height * 2;
1718                         geom.X = DesiredRect.getWidth();
1719                 }
1720
1721                 core::rect<s32> rect = core::rect<s32>(pos.X, pos.Y, pos.X+geom.X,
1722                                 pos.Y+geom.Y);
1723
1724                 gui::IGUITabControl *e = Environment->addTabControl(rect, this,
1725                                 show_background, show_border, spec.fid);
1726                 e->setAlignment(irr::gui::EGUIA_UPPERLEFT, irr::gui::EGUIA_UPPERLEFT,
1727                                 irr::gui::EGUIA_UPPERLEFT, irr::gui::EGUIA_LOWERRIGHT);
1728                 e->setTabHeight(geom.Y);
1729
1730                 if (spec.fname == data->focused_fieldname) {
1731                         Environment->setFocus(e);
1732                 }
1733
1734                 auto style = getStyleForElement("tabheader", name);
1735                 e->setNotClipped(style.getBool(StyleSpec::NOCLIP, true));
1736
1737                 for (const std::string &button : buttons) {
1738                         auto tab = e->addTab(unescape_translate(unescape_string(
1739                                 utf8_to_wide(button))).c_str(), -1);
1740                         if (style.isNotDefault(StyleSpec::BGCOLOR))
1741                                 tab->setBackgroundColor(style.getColor(StyleSpec::BGCOLOR));
1742
1743                         tab->setTextColor(style.getColor(StyleSpec::TEXTCOLOR, video::SColor(0xFFFFFFFF)));
1744                 }
1745
1746                 if ((tab_index >= 0) &&
1747                                 (buttons.size() < INT_MAX) &&
1748                                 (tab_index < (int) buttons.size()))
1749                         e->setActiveTab(tab_index);
1750
1751                 m_fields.push_back(spec);
1752                 return;
1753         }
1754         errorstream << "Invalid TabHeader element(" << parts.size() << "): '"
1755                         << element << "'"  << std::endl;
1756 }
1757
1758 void GUIFormSpecMenu::parseItemImageButton(parserData* data, const std::string &element)
1759 {
1760
1761         if (m_client == 0) {
1762                 warningstream << "invalid use of item_image_button with m_client==0"
1763                         << std::endl;
1764                 return;
1765         }
1766
1767         std::vector<std::string> parts = split(element,';');
1768
1769         if ((parts.size() == 5) ||
1770                 ((parts.size() > 5) && (m_formspec_version > FORMSPEC_API_VERSION)))
1771         {
1772                 std::vector<std::string> v_pos = split(parts[0],',');
1773                 std::vector<std::string> v_geom = split(parts[1],',');
1774                 std::string item_name = parts[2];
1775                 std::string name = parts[3];
1776                 std::string label = parts[4];
1777
1778                 label = unescape_string(label);
1779                 item_name = unescape_string(item_name);
1780
1781                 MY_CHECKPOS("itemimagebutton",0);
1782                 MY_CHECKGEOM("itemimagebutton",1);
1783
1784                 v2s32 pos;
1785                 v2s32 geom;
1786
1787                 if (data->real_coordinates) {
1788                         pos = getRealCoordinateBasePos(false, v_pos);
1789                         geom = getRealCoordinateGeometry(v_geom);
1790                 } else {
1791                         pos = getElementBasePos(false, &v_pos);
1792                         geom.X = (stof(v_geom[0]) * spacing.X) - (spacing.X - imgsize.X);
1793                         geom.Y = (stof(v_geom[1]) * spacing.Y) - (spacing.Y - imgsize.Y);
1794                 }
1795
1796                 core::rect<s32> rect = core::rect<s32>(pos.X, pos.Y, pos.X+geom.X, pos.Y+geom.Y);
1797
1798                 if(!data->explicit_size)
1799                         warningstream<<"invalid use of item_image_button without a size[] element"<<std::endl;
1800
1801                 IItemDefManager *idef = m_client->idef();
1802                 ItemStack item;
1803                 item.deSerialize(item_name, idef);
1804
1805                 m_tooltips[name] =
1806                         TooltipSpec(utf8_to_wide(item.getDefinition(idef).description),
1807                                                 m_default_tooltip_bgcolor,
1808                                                 m_default_tooltip_color);
1809
1810                 FieldSpec spec(
1811                         name,
1812                         utf8_to_wide(label),
1813                         utf8_to_wide(item_name),
1814                         258 + m_fields.size()
1815                 );
1816
1817                 gui::IGUIButton *e = Environment->addButton(rect, this, spec.fid, L"");
1818
1819                 auto style = getStyleForElement("item_image_button", spec.fname, "image_button");
1820                 e->setNotClipped(style.getBool(StyleSpec::NOCLIP, false));
1821                 e->setDrawBorder(style.getBool(StyleSpec::BORDER, true));
1822
1823                 if (spec.fname == data->focused_fieldname) {
1824                         Environment->setFocus(e);
1825                 }
1826
1827                 spec.ftype = f_Button;
1828                 rect+=data->basepos-padding;
1829                 spec.rect=rect;
1830                 m_fields.push_back(spec);
1831
1832                 if (data->real_coordinates)
1833                         pos = getRealCoordinateBasePos(true, v_pos);
1834                 else
1835                         pos = getElementBasePos(true, &v_pos);
1836
1837                 m_itemimages.emplace_back("", item_name, e, pos, geom);
1838                 m_static_texts.emplace_back(utf8_to_wide(label), rect, e);
1839                 return;
1840         }
1841         errorstream<< "Invalid ItemImagebutton element(" << parts.size() << "): '" << element << "'"  << std::endl;
1842 }
1843
1844 void GUIFormSpecMenu::parseBox(parserData* data, const std::string &element)
1845 {
1846         std::vector<std::string> parts = split(element,';');
1847
1848         if ((parts.size() == 3) ||
1849                 ((parts.size() > 3) && (m_formspec_version > FORMSPEC_API_VERSION)))
1850         {
1851                 std::vector<std::string> v_pos = split(parts[0],',');
1852                 std::vector<std::string> v_geom = split(parts[1],',');
1853
1854                 MY_CHECKPOS("box",0);
1855                 MY_CHECKGEOM("box",1);
1856
1857                 v2s32 pos;
1858                 v2s32 geom;
1859
1860                 if (data->real_coordinates) {
1861                         pos = getRealCoordinateBasePos(true, v_pos);
1862                         geom = getRealCoordinateGeometry(v_geom);
1863                 } else {
1864                         pos = getElementBasePos(true, &v_pos);
1865                         geom.X = stof(v_geom[0]) * spacing.X;
1866                         geom.Y = stof(v_geom[1]) * spacing.Y;
1867                 }
1868
1869                 video::SColor tmp_color;
1870
1871                 if (parseColorString(parts[2], tmp_color, false, 0x8C)) {
1872                         BoxDrawSpec spec(pos, geom, tmp_color);
1873
1874                         m_boxes.push_back(spec);
1875                 }
1876                 else {
1877                         errorstream<< "Invalid Box element(" << parts.size() << "): '" << element << "'  INVALID COLOR"  << std::endl;
1878                 }
1879                 return;
1880         }
1881         errorstream<< "Invalid Box element(" << parts.size() << "): '" << element << "'"  << std::endl;
1882 }
1883
1884 void GUIFormSpecMenu::parseBackgroundColor(parserData* data, const std::string &element)
1885 {
1886         std::vector<std::string> parts = split(element,';');
1887
1888         if (((parts.size() == 1) || (parts.size() == 2)) ||
1889                         ((parts.size() > 2) && (m_formspec_version > FORMSPEC_API_VERSION))) {
1890                 parseColorString(parts[0], m_bgcolor, false);
1891
1892                 if (parts.size() == 2) {
1893                         std::string fullscreen = parts[1];
1894                         m_bgfullscreen = is_yes(fullscreen);
1895                 }
1896
1897                 return;
1898         }
1899
1900         errorstream << "Invalid bgcolor element(" << parts.size() << "): '" << element << "'"
1901                         << std::endl;
1902 }
1903
1904 void GUIFormSpecMenu::parseListColors(parserData* data, const std::string &element)
1905 {
1906         std::vector<std::string> parts = split(element,';');
1907
1908         if (((parts.size() == 2) || (parts.size() == 3) || (parts.size() == 5)) ||
1909                 ((parts.size() > 5) && (m_formspec_version > FORMSPEC_API_VERSION)))
1910         {
1911                 parseColorString(parts[0], m_slotbg_n, false);
1912                 parseColorString(parts[1], m_slotbg_h, false);
1913
1914                 if (parts.size() >= 3) {
1915                         if (parseColorString(parts[2], m_slotbordercolor, false)) {
1916                                 m_slotborder = true;
1917                         }
1918                 }
1919                 if (parts.size() == 5) {
1920                         video::SColor tmp_color;
1921
1922                         if (parseColorString(parts[3], tmp_color, false))
1923                                 m_default_tooltip_bgcolor = tmp_color;
1924                         if (parseColorString(parts[4], tmp_color, false))
1925                                 m_default_tooltip_color = tmp_color;
1926                 }
1927                 return;
1928         }
1929         errorstream<< "Invalid listcolors element(" << parts.size() << "): '" << element << "'"  << std::endl;
1930 }
1931
1932 void GUIFormSpecMenu::parseTooltip(parserData* data, const std::string &element)
1933 {
1934         std::vector<std::string> parts = split(element,';');
1935         if (parts.size() < 2) {
1936                 errorstream << "Invalid tooltip element(" << parts.size() << "): '"
1937                                 << element << "'"  << std::endl;
1938                 return;
1939         }
1940
1941         // Get mode and check size
1942         bool rect_mode = parts[0].find(',') != std::string::npos;
1943         size_t base_size = rect_mode ? 3 : 2;
1944         if (parts.size() != base_size && parts.size() != base_size + 2) {
1945                 errorstream << "Invalid tooltip element(" << parts.size() << "): '"
1946                                 << element << "'"  << std::endl;
1947                 return;
1948         }
1949
1950         // Read colors
1951         video::SColor bgcolor = m_default_tooltip_bgcolor;
1952         video::SColor color   = m_default_tooltip_color;
1953         if (parts.size() == base_size + 2 &&
1954                         (!parseColorString(parts[base_size], bgcolor, false) ||
1955                                 !parseColorString(parts[base_size + 1], color, false))) {
1956                 errorstream << "Invalid color in tooltip element(" << parts.size()
1957                                 << "): '" << element << "'"  << std::endl;
1958                 return;
1959         }
1960
1961         // Make tooltip spec
1962         std::string text = unescape_string(parts[rect_mode ? 2 : 1]);
1963         TooltipSpec spec(utf8_to_wide(text), bgcolor, color);
1964
1965         // Add tooltip
1966         if (rect_mode) {
1967                 std::vector<std::string> v_pos  = split(parts[0], ',');
1968                 std::vector<std::string> v_geom = split(parts[1], ',');
1969
1970                 MY_CHECKPOS("tooltip", 0);
1971                 MY_CHECKGEOM("tooltip", 1);
1972
1973                 v2s32 pos;
1974                 v2s32 geom;
1975
1976                 if (data->real_coordinates) {
1977                         pos = getRealCoordinateBasePos(true, v_pos);
1978                         geom = getRealCoordinateGeometry(v_geom);
1979                 } else {
1980                         pos = getElementBasePos(true, &v_pos);
1981                         geom.X = stof(v_geom[0]) * spacing.X;
1982                         geom.Y = stof(v_geom[1]) * spacing.Y;
1983                 }
1984
1985                 irr::core::rect<s32> rect(pos, pos + geom);
1986                 m_tooltip_rects.emplace_back(rect, spec);
1987         } else {
1988                 m_tooltips[parts[0]] = spec;
1989         }
1990 }
1991
1992 bool GUIFormSpecMenu::parseVersionDirect(const std::string &data)
1993 {
1994         //some prechecks
1995         if (data.empty())
1996                 return false;
1997
1998         std::vector<std::string> parts = split(data,'[');
1999
2000         if (parts.size() < 2) {
2001                 return false;
2002         }
2003
2004         if (parts[0] != "formspec_version") {
2005                 return false;
2006         }
2007
2008         if (is_number(parts[1])) {
2009                 m_formspec_version = mystoi(parts[1]);
2010                 return true;
2011         }
2012
2013         return false;
2014 }
2015
2016 bool GUIFormSpecMenu::parseSizeDirect(parserData* data, const std::string &element)
2017 {
2018         if (element.empty())
2019                 return false;
2020
2021         std::vector<std::string> parts = split(element,'[');
2022
2023         if (parts.size() < 2)
2024                 return false;
2025
2026         std::string type = trim(parts[0]);
2027         std::string description = trim(parts[1]);
2028
2029         if (type != "size" && type != "invsize")
2030                 return false;
2031
2032         if (type == "invsize")
2033                 log_deprecated("Deprecated formspec element \"invsize\" is used");
2034
2035         parseSize(data, description);
2036
2037         return true;
2038 }
2039
2040 bool GUIFormSpecMenu::parsePositionDirect(parserData *data, const std::string &element)
2041 {
2042         if (element.empty())
2043                 return false;
2044
2045         std::vector<std::string> parts = split(element, '[');
2046
2047         if (parts.size() != 2)
2048                 return false;
2049
2050         std::string type = trim(parts[0]);
2051         std::string description = trim(parts[1]);
2052
2053         if (type != "position")
2054                 return false;
2055
2056         parsePosition(data, description);
2057
2058         return true;
2059 }
2060
2061 void GUIFormSpecMenu::parsePosition(parserData *data, const std::string &element)
2062 {
2063         std::vector<std::string> parts = split(element, ',');
2064
2065         if (parts.size() == 2) {
2066                 data->offset.X = stof(parts[0]);
2067                 data->offset.Y = stof(parts[1]);
2068                 return;
2069         }
2070
2071         errorstream << "Invalid position element (" << parts.size() << "): '" << element << "'" << std::endl;
2072 }
2073
2074 bool GUIFormSpecMenu::parseAnchorDirect(parserData *data, const std::string &element)
2075 {
2076         if (element.empty())
2077                 return false;
2078
2079         std::vector<std::string> parts = split(element, '[');
2080
2081         if (parts.size() != 2)
2082                 return false;
2083
2084         std::string type = trim(parts[0]);
2085         std::string description = trim(parts[1]);
2086
2087         if (type != "anchor")
2088                 return false;
2089
2090         parseAnchor(data, description);
2091
2092         return true;
2093 }
2094
2095 void GUIFormSpecMenu::parseAnchor(parserData *data, const std::string &element)
2096 {
2097         std::vector<std::string> parts = split(element, ',');
2098
2099         if (parts.size() == 2) {
2100                 data->anchor.X = stof(parts[0]);
2101                 data->anchor.Y = stof(parts[1]);
2102                 return;
2103         }
2104
2105         errorstream << "Invalid anchor element (" << parts.size() << "): '" << element
2106                         << "'" << std::endl;
2107 }
2108
2109 bool GUIFormSpecMenu::parseStyle(parserData *data, const std::string &element, bool style_type)
2110 {
2111         std::vector<std::string> parts = split(element, ';');
2112
2113         if (parts.size() < 2) {
2114                 errorstream << "Invalid style element (" << parts.size() << "): '" << element
2115                                         << "'" << std::endl;
2116                 return false;
2117         }
2118
2119         std::string selector = trim(parts[0]);
2120         if (selector.empty()) {
2121                 errorstream << "Invalid style element (Selector required): '" << element
2122                                         << "'" << std::endl;
2123                 return false;
2124         }
2125
2126         StyleSpec spec;
2127
2128         for (size_t i = 1; i < parts.size(); i++) {
2129                 size_t equal_pos = parts[i].find('=');
2130                 if (equal_pos == std::string::npos) {
2131                         errorstream << "Invalid style element (Property missing value): '" << element
2132                                                 << "'" << std::endl;
2133                         return false;
2134                 }
2135
2136                 std::string propname = trim(parts[i].substr(0, equal_pos));
2137                 std::string value    = trim(unescape_string(parts[i].substr(equal_pos + 1)));
2138
2139                 std::transform(propname.begin(), propname.end(), propname.begin(), ::tolower);
2140
2141                 StyleSpec::Property prop = StyleSpec::GetPropertyByName(propname);
2142                 if (prop == StyleSpec::NONE) {
2143                         if (property_warned.find(propname) != property_warned.end()) {
2144                                 warningstream << "Invalid style element (Unknown property " << propname << "): '"
2145                                                 << element
2146                                                 << "'" << std::endl;
2147                                 property_warned.insert(propname);
2148                         }
2149                         return false;
2150                 }
2151
2152                 spec.set(prop, value);
2153         }
2154
2155         if (style_type) {
2156                 theme_by_type[selector] |= spec;
2157         } else {
2158                 theme_by_name[selector] |= spec;
2159         }
2160
2161         return true;
2162 }
2163
2164 void GUIFormSpecMenu::parseElement(parserData* data, const std::string &element)
2165 {
2166         //some prechecks
2167         if (element.empty())
2168                 return;
2169
2170         std::vector<std::string> parts = split(element,'[');
2171
2172         // ugly workaround to keep compatibility
2173         if (parts.size() > 2) {
2174                 if (trim(parts[0]) == "image") {
2175                         for (unsigned int i=2;i< parts.size(); i++) {
2176                                 parts[1] += "[" + parts[i];
2177                         }
2178                 }
2179                 else { return; }
2180         }
2181
2182         if (parts.size() < 2) {
2183                 return;
2184         }
2185
2186         std::string type = trim(parts[0]);
2187         std::string description = trim(parts[1]);
2188
2189         if (type == "container") {
2190                 parseContainer(data, description);
2191                 return;
2192         }
2193
2194         if (type == "container_end") {
2195                 parseContainerEnd(data);
2196                 return;
2197         }
2198
2199         if (type == "list") {
2200                 parseList(data, description);
2201                 return;
2202         }
2203
2204         if (type == "listring") {
2205                 parseListRing(data, description);
2206                 return;
2207         }
2208
2209         if (type == "checkbox") {
2210                 parseCheckbox(data, description);
2211                 return;
2212         }
2213
2214         if (type == "image") {
2215                 parseImage(data, description);
2216                 return;
2217         }
2218
2219         if (type == "item_image") {
2220                 parseItemImage(data, description);
2221                 return;
2222         }
2223
2224         if (type == "button" || type == "button_exit") {
2225                 parseButton(data, description, type);
2226                 return;
2227         }
2228
2229         if (type == "background") {
2230                 parseBackground(data,description);
2231                 return;
2232         }
2233
2234         if (type == "tableoptions"){
2235                 parseTableOptions(data,description);
2236                 return;
2237         }
2238
2239         if (type == "tablecolumns"){
2240                 parseTableColumns(data,description);
2241                 return;
2242         }
2243
2244         if (type == "table"){
2245                 parseTable(data,description);
2246                 return;
2247         }
2248
2249         if (type == "textlist"){
2250                 parseTextList(data,description);
2251                 return;
2252         }
2253
2254         if (type == "dropdown"){
2255                 parseDropDown(data,description);
2256                 return;
2257         }
2258
2259         if (type == "field_close_on_enter") {
2260                 parseFieldCloseOnEnter(data, description);
2261                 return;
2262         }
2263
2264         if (type == "pwdfield") {
2265                 parsePwdField(data,description);
2266                 return;
2267         }
2268
2269         if ((type == "field") || (type == "textarea")){
2270                 parseField(data,description,type);
2271                 return;
2272         }
2273
2274         if (type == "label") {
2275                 parseLabel(data,description);
2276                 return;
2277         }
2278
2279         if (type == "vertlabel") {
2280                 parseVertLabel(data,description);
2281                 return;
2282         }
2283
2284         if (type == "item_image_button") {
2285                 parseItemImageButton(data,description);
2286                 return;
2287         }
2288
2289         if ((type == "image_button") || (type == "image_button_exit")) {
2290                 parseImageButton(data,description,type);
2291                 return;
2292         }
2293
2294         if (type == "tabheader") {
2295                 parseTabHeader(data,description);
2296                 return;
2297         }
2298
2299         if (type == "box") {
2300                 parseBox(data,description);
2301                 return;
2302         }
2303
2304         if (type == "bgcolor") {
2305                 parseBackgroundColor(data,description);
2306                 return;
2307         }
2308
2309         if (type == "listcolors") {
2310                 parseListColors(data,description);
2311                 return;
2312         }
2313
2314         if (type == "tooltip") {
2315                 parseTooltip(data,description);
2316                 return;
2317         }
2318
2319         if (type == "scrollbar") {
2320                 parseScrollBar(data, description);
2321                 return;
2322         }
2323
2324         if (type == "real_coordinates") {
2325                 data->real_coordinates = is_yes(description);
2326                 return;
2327         }
2328
2329         if (type == "style") {
2330                 parseStyle(data, description, false);
2331                 return;
2332         }
2333
2334         if (type == "style_type") {
2335                 parseStyle(data, description, true);
2336                 return;
2337         }
2338
2339         // Ignore others
2340         infostream << "Unknown DrawSpec: type=" << type << ", data=\"" << description << "\""
2341                         << std::endl;
2342 }
2343
2344 void GUIFormSpecMenu::regenerateGui(v2u32 screensize)
2345 {
2346         /* useless to regenerate without a screensize */
2347         if ((screensize.X <= 0) || (screensize.Y <= 0)) {
2348                 return;
2349         }
2350
2351         parserData mydata;
2352
2353         //preserve tables
2354         for (auto &m_table : m_tables) {
2355                 std::string tablename = m_table.first.fname;
2356                 GUITable *table = m_table.second;
2357                 mydata.table_dyndata[tablename] = table->getDynamicData();
2358         }
2359
2360         //set focus
2361         if (!m_focused_element.empty())
2362                 mydata.focused_fieldname = m_focused_element;
2363
2364         //preserve focus
2365         gui::IGUIElement *focused_element = Environment->getFocus();
2366         if (focused_element && focused_element->getParent() == this) {
2367                 s32 focused_id = focused_element->getID();
2368                 if (focused_id > 257) {
2369                         for (const GUIFormSpecMenu::FieldSpec &field : m_fields) {
2370                                 if (field.fid == focused_id) {
2371                                         mydata.focused_fieldname = field.fname;
2372                                         break;
2373                                 }
2374                         }
2375                 }
2376         }
2377
2378         // Remove children
2379         removeChildren();
2380
2381         for (auto &table_it : m_tables) {
2382                 table_it.second->drop();
2383         }
2384
2385         mydata.size= v2s32(100,100);
2386         mydata.screensize = screensize;
2387         mydata.offset = v2f32(0.5f, 0.5f);
2388         mydata.anchor = v2f32(0.5f, 0.5f);
2389
2390         // Base position of contents of form
2391         mydata.basepos = getBasePos();
2392
2393         /* Convert m_init_draw_spec to m_inventorylists */
2394
2395         m_inventorylists.clear();
2396         m_images.clear();
2397         m_backgrounds.clear();
2398         m_itemimages.clear();
2399         m_tables.clear();
2400         m_checkboxes.clear();
2401         m_scrollbars.clear();
2402         m_fields.clear();
2403         m_boxes.clear();
2404         m_tooltips.clear();
2405         m_tooltip_rects.clear();
2406         m_inventory_rings.clear();
2407         m_static_texts.clear();
2408         m_dropdowns.clear();
2409         theme_by_name.clear();
2410         theme_by_type.clear();
2411
2412         m_bgfullscreen = false;
2413
2414         {
2415                 v3f formspec_bgcolor = g_settings->getV3F("formspec_default_bg_color");
2416                 m_bgcolor = video::SColor(
2417                         (u8) clamp_u8(g_settings->getS32("formspec_default_bg_opacity")),
2418                         clamp_u8(myround(formspec_bgcolor.X)),
2419                         clamp_u8(myround(formspec_bgcolor.Y)),
2420                         clamp_u8(myround(formspec_bgcolor.Z))
2421                 );
2422         }
2423
2424         {
2425                 v3f formspec_bgcolor = g_settings->getV3F("formspec_fullscreen_bg_color");
2426                 m_fullscreen_bgcolor = video::SColor(
2427                         (u8) clamp_u8(g_settings->getS32("formspec_fullscreen_bg_opacity")),
2428                         clamp_u8(myround(formspec_bgcolor.X)),
2429                         clamp_u8(myround(formspec_bgcolor.Y)),
2430                         clamp_u8(myround(formspec_bgcolor.Z))
2431                 );
2432         }
2433
2434         m_slotbg_n = video::SColor(255,128,128,128);
2435         m_slotbg_h = video::SColor(255,192,192,192);
2436
2437         m_default_tooltip_bgcolor = video::SColor(255,110,130,60);
2438         m_default_tooltip_color = video::SColor(255,255,255,255);
2439
2440         m_slotbordercolor = video::SColor(200,0,0,0);
2441         m_slotborder = false;
2442
2443         // Add tooltip
2444         {
2445                 assert(!m_tooltip_element);
2446                 // Note: parent != this so that the tooltip isn't clipped by the menu rectangle
2447                 m_tooltip_element = gui::StaticText::add(Environment, L"",
2448                         core::rect<s32>(0, 0, 110, 18));
2449                 m_tooltip_element->enableOverrideColor(true);
2450                 m_tooltip_element->setBackgroundColor(m_default_tooltip_bgcolor);
2451                 m_tooltip_element->setDrawBackground(true);
2452                 m_tooltip_element->setDrawBorder(true);
2453                 m_tooltip_element->setOverrideColor(m_default_tooltip_color);
2454                 m_tooltip_element->setTextAlignment(gui::EGUIA_CENTER, gui::EGUIA_CENTER);
2455                 m_tooltip_element->setWordWrap(false);
2456                 //we're not parent so no autograb for this one!
2457                 m_tooltip_element->grab();
2458         }
2459
2460         std::vector<std::string> elements = split(m_formspec_string,']');
2461         unsigned int i = 0;
2462
2463         /* try to read version from first element only */
2464         if (!elements.empty()) {
2465                 if (parseVersionDirect(elements[0])) {
2466                         i++;
2467                 }
2468         }
2469
2470         /* we need size first in order to calculate image scale */
2471         mydata.explicit_size = false;
2472         for (; i< elements.size(); i++) {
2473                 if (!parseSizeDirect(&mydata, elements[i])) {
2474                         break;
2475                 }
2476         }
2477
2478         /* "position" element is always after "size" element if it used */
2479         for (; i< elements.size(); i++) {
2480                 if (!parsePositionDirect(&mydata, elements[i])) {
2481                         break;
2482                 }
2483         }
2484
2485         /* "anchor" element is always after "position" (or  "size" element) if it used */
2486         for (; i< elements.size(); i++) {
2487                 if (!parseAnchorDirect(&mydata, elements[i])) {
2488                         break;
2489                 }
2490         }
2491
2492         /* "no_prepend" element is always after "position" (or  "size" element) if it used */
2493         bool enable_prepends = true;
2494         for (; i < elements.size(); i++) {
2495                 if (elements[i].empty())
2496                         break;
2497
2498                 std::vector<std::string> parts = split(elements[i], '[');
2499                 if (trim(parts[0]) == "no_prepend")
2500                         enable_prepends = false;
2501                 else
2502                         break;
2503         }
2504
2505         /* Copy of the "real_coordinates" element for after the form size. */
2506         mydata.real_coordinates = false;
2507         for (; i < elements.size(); i++) {
2508                 std::vector<std::string> parts = split(elements[i], '[');
2509                 std::string name = trim(parts[0]);
2510                 if (name != "real_coordinates" || parts.size() != 2)
2511                         break; // Invalid format
2512
2513                 mydata.real_coordinates = is_yes(trim(parts[1]));
2514         }
2515
2516         if (mydata.explicit_size) {
2517                 // compute scaling for specified form size
2518                 if (m_lock) {
2519                         v2u32 current_screensize = RenderingEngine::get_video_driver()->getScreenSize();
2520                         v2u32 delta = current_screensize - m_lockscreensize;
2521
2522                         if (current_screensize.Y > m_lockscreensize.Y)
2523                                 delta.Y /= 2;
2524                         else
2525                                 delta.Y = 0;
2526
2527                         if (current_screensize.X > m_lockscreensize.X)
2528                                 delta.X /= 2;
2529                         else
2530                                 delta.X = 0;
2531
2532                         offset = v2s32(delta.X,delta.Y);
2533
2534                         mydata.screensize = m_lockscreensize;
2535                 } else {
2536                         offset = v2s32(0,0);
2537                 }
2538
2539                 double gui_scaling = g_settings->getFloat("gui_scaling");
2540                 double screen_dpi = RenderingEngine::getDisplayDensity() * 96;
2541
2542                 double use_imgsize;
2543                 if (m_lock) {
2544                         // In fixed-size mode, inventory image size
2545                         // is 0.53 inch multiplied by the gui_scaling
2546                         // config parameter.  This magic size is chosen
2547                         // to make the main menu (15.5 inventory images
2548                         // wide, including border) just fit into the
2549                         // default window (800 pixels wide) at 96 DPI
2550                         // and default scaling (1.00).
2551                         use_imgsize = 0.5555 * screen_dpi * gui_scaling;
2552                 } else {
2553                         // In variable-size mode, we prefer to make the
2554                         // inventory image size 1/15 of screen height,
2555                         // multiplied by the gui_scaling config parameter.
2556                         // If the preferred size won't fit the whole
2557                         // form on the screen, either horizontally or
2558                         // vertically, then we scale it down to fit.
2559                         // (The magic numbers in the computation of what
2560                         // fits arise from the scaling factors in the
2561                         // following stanza, including the form border,
2562                         // help text space, and 0.1 inventory slot spare.)
2563                         // However, a minimum size is also set, that
2564                         // the image size can't be less than 0.3 inch
2565                         // multiplied by gui_scaling, even if this means
2566                         // the form doesn't fit the screen.
2567 #ifdef __ANDROID__
2568                         // For mobile devices these magic numbers are
2569                         // different and forms should always use the
2570                         // maximum screen space available.
2571                         double prefer_imgsize = mydata.screensize.Y / 10 * gui_scaling;
2572                         double fitx_imgsize = mydata.screensize.X /
2573                                 ((12.0 / 8.0) * (0.5 + mydata.invsize.X));
2574                         double fity_imgsize = mydata.screensize.Y /
2575                                 ((15.0 / 11.0) * (0.85 + mydata.invsize.Y));
2576                         use_imgsize = MYMIN(prefer_imgsize,
2577                                         MYMIN(fitx_imgsize, fity_imgsize));
2578 #else
2579                         double prefer_imgsize = mydata.screensize.Y / 15 * gui_scaling;
2580                         double fitx_imgsize = mydata.screensize.X /
2581                                 ((5.0 / 4.0) * (0.5 + mydata.invsize.X));
2582                         double fity_imgsize = mydata.screensize.Y /
2583                                 ((15.0 / 13.0) * (0.85 * mydata.invsize.Y));
2584                         double screen_dpi = RenderingEngine::getDisplayDensity() * 96;
2585                         double min_imgsize = 0.3 * screen_dpi * gui_scaling;
2586                         use_imgsize = MYMAX(min_imgsize, MYMIN(prefer_imgsize,
2587                                 MYMIN(fitx_imgsize, fity_imgsize)));
2588 #endif
2589                 }
2590
2591                 // Everything else is scaled in proportion to the
2592                 // inventory image size.  The inventory slot spacing
2593                 // is 5/4 image size horizontally and 15/13 image size
2594                 // vertically.  The padding around the form (incorporating
2595                 // the border of the outer inventory slots) is 3/8
2596                 // image size.  Font height (baseline to baseline)
2597                 // is 2/5 vertical inventory slot spacing, and button
2598                 // half-height is 7/8 of font height.
2599                 imgsize = v2s32(use_imgsize, use_imgsize);
2600                 spacing = v2f32(use_imgsize*5.0/4, use_imgsize*15.0/13);
2601                 padding = v2s32(use_imgsize*3.0/8, use_imgsize*3.0/8);
2602                 m_btn_height = use_imgsize*15.0/13 * 0.35;
2603
2604                 m_font = g_fontengine->getFont();
2605
2606                 if (mydata.real_coordinates) {
2607                         mydata.size = v2s32(
2608                                 mydata.invsize.X*imgsize.X,
2609                                 mydata.invsize.Y*imgsize.Y
2610                         );
2611                 } else {
2612                         mydata.size = v2s32(
2613                                 padding.X*2+spacing.X*(mydata.invsize.X-1.0)+imgsize.X,
2614                                 padding.Y*2+spacing.Y*(mydata.invsize.Y-1.0)+imgsize.Y + m_btn_height*2.0/3.0
2615                         );
2616                 }
2617
2618                 DesiredRect = mydata.rect = core::rect<s32>(
2619                                 (s32)((f32)mydata.screensize.X * mydata.offset.X) - (s32)(mydata.anchor.X * (f32)mydata.size.X) + offset.X,
2620                                 (s32)((f32)mydata.screensize.Y * mydata.offset.Y) - (s32)(mydata.anchor.Y * (f32)mydata.size.Y) + offset.Y,
2621                                 (s32)((f32)mydata.screensize.X * mydata.offset.X) + (s32)((1.0 - mydata.anchor.X) * (f32)mydata.size.X) + offset.X,
2622                                 (s32)((f32)mydata.screensize.Y * mydata.offset.Y) + (s32)((1.0 - mydata.anchor.Y) * (f32)mydata.size.Y) + offset.Y
2623                 );
2624         } else {
2625                 // Non-size[] form must consist only of text fields and
2626                 // implicit "Proceed" button.  Use default font, and
2627                 // temporary form size which will be recalculated below.
2628                 m_font = g_fontengine->getFont();
2629                 m_btn_height = font_line_height(m_font) * 0.875;
2630                 DesiredRect = core::rect<s32>(
2631                         (s32)((f32)mydata.screensize.X * mydata.offset.X) - (s32)(mydata.anchor.X * 580.0),
2632                         (s32)((f32)mydata.screensize.Y * mydata.offset.Y) - (s32)(mydata.anchor.Y * 300.0),
2633                         (s32)((f32)mydata.screensize.X * mydata.offset.X) + (s32)((1.0 - mydata.anchor.X) * 580.0),
2634                         (s32)((f32)mydata.screensize.Y * mydata.offset.Y) + (s32)((1.0 - mydata.anchor.Y) * 300.0)
2635                 );
2636         }
2637         recalculateAbsolutePosition(false);
2638         mydata.basepos = getBasePos();
2639         m_tooltip_element->setOverrideFont(m_font);
2640
2641         gui::IGUISkin *skin = Environment->getSkin();
2642         sanity_check(skin);
2643         gui::IGUIFont *old_font = skin->getFont();
2644         skin->setFont(m_font);
2645
2646         pos_offset = v2f32();
2647
2648         if (enable_prepends) {
2649                 // Backup the coordinates so that prepends can use the coordinates of choice.
2650                 bool rc_backup = mydata.real_coordinates;
2651                 mydata.real_coordinates = false; // Old coordinates by default.
2652                 std::vector<std::string> prepend_elements = split(m_formspec_prepend, ']');
2653                 for (const auto &element : prepend_elements)
2654                         parseElement(&mydata, element);
2655                 mydata.real_coordinates = rc_backup; // Restore coordinates
2656         }
2657
2658         for (; i< elements.size(); i++) {
2659                 parseElement(&mydata, elements[i]);
2660         }
2661
2662         if (!container_stack.empty()) {
2663                 errorstream << "Invalid formspec string: container was never closed!"
2664                         << std::endl;
2665         }
2666
2667         // If there are fields without explicit size[], add a "Proceed"
2668         // button and adjust size to fit all the fields.
2669         if (!m_fields.empty() && !mydata.explicit_size) {
2670                 mydata.rect = core::rect<s32>(
2671                                 mydata.screensize.X/2 - 580/2,
2672                                 mydata.screensize.Y/2 - 300/2,
2673                                 mydata.screensize.X/2 + 580/2,
2674                                 mydata.screensize.Y/2 + 240/2+(m_fields.size()*60)
2675                 );
2676                 DesiredRect = mydata.rect;
2677                 recalculateAbsolutePosition(false);
2678                 mydata.basepos = getBasePos();
2679
2680                 {
2681                         v2s32 pos = mydata.basepos;
2682                         pos.Y = ((m_fields.size()+2)*60);
2683
2684                         v2s32 size = DesiredRect.getSize();
2685                         mydata.rect =
2686                                         core::rect<s32>(size.X/2-70, pos.Y,
2687                                                         (size.X/2-70)+140, pos.Y + (m_btn_height*2));
2688                         const wchar_t *text = wgettext("Proceed");
2689                         Environment->addButton(mydata.rect, this, 257, text);
2690                         delete[] text;
2691                 }
2692
2693         }
2694
2695         //set initial focus if parser didn't set it
2696         focused_element = Environment->getFocus();
2697         if (!focused_element
2698                         || !isMyChild(focused_element)
2699                         || focused_element->getType() == gui::EGUIET_TAB_CONTROL)
2700                 setInitialFocus();
2701
2702         skin->setFont(old_font);
2703 }
2704
2705 #ifdef __ANDROID__
2706 bool GUIFormSpecMenu::getAndroidUIInput()
2707 {
2708         if (!hasAndroidUIInput())
2709                 return false;
2710
2711         std::string fieldname = m_jni_field_name;
2712         m_jni_field_name.clear();
2713
2714         for(std::vector<FieldSpec>::iterator iter =  m_fields.begin();
2715                         iter != m_fields.end(); ++iter) {
2716
2717                 if (iter->fname != fieldname) {
2718                         continue;
2719                 }
2720                 IGUIElement* tochange = getElementFromId(iter->fid);
2721
2722                 if (tochange == 0) {
2723                         return false;
2724                 }
2725
2726                 if (tochange->getType() != irr::gui::EGUIET_EDIT_BOX) {
2727                         return false;
2728                 }
2729
2730                 std::string text = porting::getInputDialogValue();
2731
2732                 ((gui::IGUIEditBox *)tochange)->setText(utf8_to_wide(text).c_str());
2733         }
2734         return false;
2735 }
2736 #endif
2737
2738 GUIFormSpecMenu::ItemSpec GUIFormSpecMenu::getItemAtPos(v2s32 p) const
2739 {
2740         core::rect<s32> imgrect(0,0,imgsize.X,imgsize.Y);
2741
2742         for (const GUIFormSpecMenu::ListDrawSpec &s : m_inventorylists) {
2743                 for(s32 i=0; i<s.geom.X*s.geom.Y; i++) {
2744                         s32 item_i = i + s.start_item_i;
2745
2746                         s32 x;
2747                         s32 y;
2748                         if (s.real_coordinates) {
2749                                 x = (i%s.geom.X) * (imgsize.X * 1.25);
2750                                 y = (i/s.geom.X) * (imgsize.Y * 1.25);
2751                         } else {
2752                                 x = (i%s.geom.X) * spacing.X;
2753                                 y = (i/s.geom.X) * spacing.Y;
2754                         }
2755                         v2s32 p0(x,y);
2756                         core::rect<s32> rect = imgrect + s.pos + p0;
2757                         if(rect.isPointInside(p))
2758                         {
2759                                 return ItemSpec(s.inventoryloc, s.listname, item_i);
2760                         }
2761                 }
2762         }
2763
2764         return ItemSpec(InventoryLocation(), "", -1);
2765 }
2766
2767 void GUIFormSpecMenu::drawList(const ListDrawSpec &s, int layer,
2768                 bool &item_hovered)
2769 {
2770         video::IVideoDriver* driver = Environment->getVideoDriver();
2771
2772         Inventory *inv = m_invmgr->getInventory(s.inventoryloc);
2773         if(!inv){
2774                 warningstream<<"GUIFormSpecMenu::drawList(): "
2775                                 <<"The inventory location "
2776                                 <<"\""<<s.inventoryloc.dump()<<"\" doesn't exist"
2777                                 <<std::endl;
2778                 return;
2779         }
2780         InventoryList *ilist = inv->getList(s.listname);
2781         if(!ilist){
2782                 warningstream<<"GUIFormSpecMenu::drawList(): "
2783                                 <<"The inventory list \""<<s.listname<<"\" @ \""
2784                                 <<s.inventoryloc.dump()<<"\" doesn't exist"
2785                                 <<std::endl;
2786                 return;
2787         }
2788
2789         core::rect<s32> imgrect(0,0,imgsize.X,imgsize.Y);
2790
2791         for (s32 i = 0; i < s.geom.X * s.geom.Y; i++) {
2792                 s32 item_i = i + s.start_item_i;
2793                 if (item_i >= (s32)ilist->getSize())
2794                         break;
2795
2796                 s32 x;
2797                 s32 y;
2798                 if (s.real_coordinates) {
2799                         x = (i%s.geom.X) * (imgsize.X * 1.25);
2800                         y = (i/s.geom.X) * (imgsize.Y * 1.25);
2801                 } else {
2802                         x = (i%s.geom.X) * spacing.X;
2803                         y = (i/s.geom.X) * spacing.Y;
2804                 }
2805                 v2s32 p(x,y);
2806                 core::rect<s32> rect = imgrect + s.pos + p;
2807                 ItemStack item = ilist->getItem(item_i);
2808
2809                 bool selected = m_selected_item
2810                         && m_invmgr->getInventory(m_selected_item->inventoryloc) == inv
2811                         && m_selected_item->listname == s.listname
2812                         && m_selected_item->i == item_i;
2813                 bool hovering = rect.isPointInside(m_pointer);
2814                 ItemRotationKind rotation_kind = selected ? IT_ROT_SELECTED :
2815                         (hovering ? IT_ROT_HOVERED : IT_ROT_NONE);
2816
2817                 if (layer == 0) {
2818                         if (hovering) {
2819                                 item_hovered = true;
2820                                 driver->draw2DRectangle(m_slotbg_h, rect, &AbsoluteClippingRect);
2821                         } else {
2822                                 driver->draw2DRectangle(m_slotbg_n, rect, &AbsoluteClippingRect);
2823                         }
2824                 }
2825
2826                 //Draw inv slot borders
2827                 if (m_slotborder) {
2828                         s32 x1 = rect.UpperLeftCorner.X;
2829                         s32 y1 = rect.UpperLeftCorner.Y;
2830                         s32 x2 = rect.LowerRightCorner.X;
2831                         s32 y2 = rect.LowerRightCorner.Y;
2832                         s32 border = 1;
2833                         driver->draw2DRectangle(m_slotbordercolor,
2834                                 core::rect<s32>(v2s32(x1 - border, y1 - border),
2835                                                                 v2s32(x2 + border, y1)), NULL);
2836                         driver->draw2DRectangle(m_slotbordercolor,
2837                                 core::rect<s32>(v2s32(x1 - border, y2),
2838                                                                 v2s32(x2 + border, y2 + border)), NULL);
2839                         driver->draw2DRectangle(m_slotbordercolor,
2840                                 core::rect<s32>(v2s32(x1 - border, y1),
2841                                                                 v2s32(x1, y2)), NULL);
2842                         driver->draw2DRectangle(m_slotbordercolor,
2843                                 core::rect<s32>(v2s32(x2, y1),
2844                                                                 v2s32(x2 + border, y2)), NULL);
2845                 }
2846
2847                 if (layer == 1) {
2848                         if (selected)
2849                                 item.takeItem(m_selected_amount);
2850
2851                         if (!item.empty()) {
2852                                 // Draw item stack
2853                                 drawItemStack(driver, m_font, item,
2854                                         rect, &AbsoluteClippingRect, m_client,
2855                                         rotation_kind);
2856                                 // Draw tooltip
2857                                 if (hovering && !m_selected_item) {
2858                                         std::string tooltip = item.getDescription(m_client->idef());
2859                                         if (m_tooltip_append_itemname)
2860                                                 tooltip += "\n[" + item.name + "]";
2861                                         showTooltip(utf8_to_wide(tooltip), m_default_tooltip_color,
2862                                                         m_default_tooltip_bgcolor);
2863                                 }
2864                         }
2865                 }
2866         }
2867 }
2868
2869 void GUIFormSpecMenu::drawSelectedItem()
2870 {
2871         video::IVideoDriver* driver = Environment->getVideoDriver();
2872
2873         if (!m_selected_item) {
2874                 drawItemStack(driver, m_font, ItemStack(),
2875                         core::rect<s32>(v2s32(0, 0), v2s32(0, 0)),
2876                         NULL, m_client, IT_ROT_DRAGGED);
2877                 return;
2878         }
2879
2880         Inventory *inv = m_invmgr->getInventory(m_selected_item->inventoryloc);
2881         sanity_check(inv);
2882         InventoryList *list = inv->getList(m_selected_item->listname);
2883         sanity_check(list);
2884         ItemStack stack = list->getItem(m_selected_item->i);
2885         stack.count = m_selected_amount;
2886
2887         core::rect<s32> imgrect(0,0,imgsize.X,imgsize.Y);
2888         core::rect<s32> rect = imgrect + (m_pointer - imgrect.getCenter());
2889         rect.constrainTo(driver->getViewPort());
2890         drawItemStack(driver, m_font, stack, rect, NULL, m_client, IT_ROT_DRAGGED);
2891 }
2892
2893 void GUIFormSpecMenu::drawMenu()
2894 {
2895         if (m_form_src) {
2896                 const std::string &newform = m_form_src->getForm();
2897                 if (newform != m_formspec_string) {
2898                         m_formspec_string = newform;
2899                         regenerateGui(m_screensize_old);
2900                 }
2901         }
2902
2903         gui::IGUISkin* skin = Environment->getSkin();
2904         sanity_check(skin != NULL);
2905         gui::IGUIFont *old_font = skin->getFont();
2906         skin->setFont(m_font);
2907
2908         updateSelectedItem();
2909
2910         video::IVideoDriver* driver = Environment->getVideoDriver();
2911
2912         v2u32 screenSize = driver->getScreenSize();
2913         core::rect<s32> allbg(0, 0, screenSize.X, screenSize.Y);
2914
2915         if (m_bgfullscreen)
2916                 driver->draw2DRectangle(m_fullscreen_bgcolor, allbg, &allbg);
2917         else
2918                 driver->draw2DRectangle(m_bgcolor, AbsoluteRect, &AbsoluteClippingRect);
2919
2920         m_tooltip_element->setVisible(false);
2921
2922         for (const auto &pair : m_tooltip_rects) {
2923                 if (pair.first.isPointInside(m_pointer)) {
2924                         const std::wstring &text = pair.second.tooltip;
2925                         if (!text.empty()) {
2926                                 showTooltip(text, pair.second.color, pair.second.bgcolor);
2927                                 break;
2928                         }
2929                 }
2930         }
2931
2932         /*
2933                 Draw backgrounds
2934         */
2935         for (const GUIFormSpecMenu::ImageDrawSpec &spec : m_backgrounds) {
2936                 video::ITexture *texture = m_tsrc->getTexture(spec.name);
2937
2938                 if (texture != 0) {
2939                         // Image size on screen
2940                         core::rect<s32> imgrect(0, 0, spec.geom.X, spec.geom.Y);
2941                         // Image rectangle on screen
2942                         core::rect<s32> rect = imgrect + spec.pos;
2943                         // Middle rect for 9-slicing
2944                         core::rect<s32> middle = spec.middle;
2945
2946                         if (spec.clip) {
2947                                 core::dimension2d<s32> absrec_size = AbsoluteRect.getSize();
2948                                 rect = core::rect<s32>(AbsoluteRect.UpperLeftCorner.X - spec.pos.X,
2949                                                                         AbsoluteRect.UpperLeftCorner.Y - spec.pos.Y,
2950                                                                         AbsoluteRect.UpperLeftCorner.X + absrec_size.Width + spec.pos.X,
2951                                                                         AbsoluteRect.UpperLeftCorner.Y + absrec_size.Height + spec.pos.Y);
2952                         }
2953
2954                         if (middle.getArea() == 0) {
2955                                 const video::SColor color(255, 255, 255, 255);
2956                                 const video::SColor colors[] = {color, color, color, color};
2957                                 draw2DImageFilterScaled(driver, texture, rect,
2958                                                 core::rect<s32>(core::position2d<s32>(0, 0),
2959                                                                 core::dimension2di(texture->getOriginalSize())),
2960                                                 NULL/*&AbsoluteClippingRect*/, colors, true);
2961                         } else {
2962                                 // `-x` is interpreted as `w - x`
2963                                 if (middle.LowerRightCorner.X < 0) {
2964                                         middle.LowerRightCorner.X += texture->getOriginalSize().Width;
2965                                 }
2966                                 if (middle.LowerRightCorner.Y < 0) {
2967                                         middle.LowerRightCorner.Y += texture->getOriginalSize().Height;
2968                                 }
2969                                 draw2DImage9Slice(driver, texture, rect, middle);
2970                         }
2971                 } else {
2972                         errorstream << "GUIFormSpecMenu::drawMenu() Draw backgrounds unable to load texture:" << std::endl;
2973                         errorstream << "\t" << spec.name << std::endl;
2974                 }
2975         }
2976
2977         /*
2978                 Draw Boxes
2979         */
2980         for (const GUIFormSpecMenu::BoxDrawSpec &spec : m_boxes) {
2981                 irr::video::SColor todraw = spec.color;
2982
2983                 core::rect<s32> rect(spec.pos.X,spec.pos.Y,
2984                                                         spec.pos.X + spec.geom.X,spec.pos.Y + spec.geom.Y);
2985
2986                 driver->draw2DRectangle(todraw, rect, 0);
2987         }
2988
2989         /*
2990                 Call base class
2991         */
2992         gui::IGUIElement::draw();
2993
2994         /*
2995                 Draw images
2996         */
2997         for (const GUIFormSpecMenu::ImageDrawSpec &spec : m_images) {
2998                 video::ITexture *texture = m_tsrc->getTexture(spec.name);
2999
3000                 if (texture != 0) {
3001                         const core::dimension2d<u32>& img_origsize = texture->getOriginalSize();
3002                         // Image size on screen
3003                         core::rect<s32> imgrect;
3004
3005                         if (spec.scale)
3006                                 imgrect = core::rect<s32>(0,0,spec.geom.X, spec.geom.Y);
3007                         else {
3008
3009                                 imgrect = core::rect<s32>(0,0,img_origsize.Width,img_origsize.Height);
3010                         }
3011                         // Image rectangle on screen
3012                         core::rect<s32> rect = imgrect + spec.pos;
3013                         const video::SColor color(255,255,255,255);
3014                         const video::SColor colors[] = {color,color,color,color};
3015                         draw2DImageFilterScaled(driver, texture, rect,
3016                                 core::rect<s32>(core::position2d<s32>(0,0),img_origsize),
3017                                 NULL/*&AbsoluteClippingRect*/, colors, true);
3018                 }
3019                 else {
3020                         errorstream << "GUIFormSpecMenu::drawMenu() Draw images unable to load texture:" << std::endl;
3021                         errorstream << "\t" << spec.name << std::endl;
3022                 }
3023         }
3024
3025         /*
3026                 Draw item images
3027         */
3028         for (const GUIFormSpecMenu::ImageDrawSpec &spec : m_itemimages) {
3029                 if (m_client == 0)
3030                         break;
3031
3032                 IItemDefManager *idef = m_client->idef();
3033                 ItemStack item;
3034                 item.deSerialize(spec.item_name, idef);
3035                 core::rect<s32> imgrect(0, 0, spec.geom.X, spec.geom.Y);
3036                 // Viewport rectangle on screen
3037                 core::rect<s32> rect = imgrect + spec.pos;
3038                 if (spec.parent_button && spec.parent_button->isPressed()) {
3039 #if (IRRLICHT_VERSION_MAJOR == 1 && IRRLICHT_VERSION_MINOR < 8)
3040                         rect += core::dimension2d<s32>(
3041                                 0.05 * (float)rect.getWidth(), 0.05 * (float)rect.getHeight());
3042 #else
3043                         rect += core::dimension2d<s32>(
3044                                 skin->getSize(irr::gui::EGDS_BUTTON_PRESSED_IMAGE_OFFSET_X),
3045                                 skin->getSize(irr::gui::EGDS_BUTTON_PRESSED_IMAGE_OFFSET_Y));
3046 #endif
3047                 }
3048                 drawItemStack(driver, m_font, item, rect, &AbsoluteClippingRect,
3049                                 m_client, IT_ROT_NONE);
3050         }
3051
3052         /*
3053                 Draw items
3054                 Layer 0: Item slot rectangles
3055                 Layer 1: Item images; prepare tooltip
3056         */
3057         bool item_hovered = false;
3058         for (int layer = 0; layer < 2; layer++) {
3059                 for (const GUIFormSpecMenu::ListDrawSpec &spec : m_inventorylists) {
3060                         drawList(spec, layer, item_hovered);
3061                 }
3062         }
3063         if (!item_hovered) {
3064                 drawItemStack(driver, m_font, ItemStack(),
3065                         core::rect<s32>(v2s32(0, 0), v2s32(0, 0)),
3066                         NULL, m_client, IT_ROT_HOVERED);
3067         }
3068
3069 /* TODO find way to show tooltips on touchscreen */
3070 #ifndef HAVE_TOUCHSCREENGUI
3071         m_pointer = RenderingEngine::get_raw_device()->getCursorControl()->getPosition();
3072 #endif
3073
3074         /*
3075                 Draw static text elements
3076         */
3077         for (const GUIFormSpecMenu::StaticTextSpec &spec : m_static_texts) {
3078                 core::rect<s32> rect = spec.rect;
3079                 if (spec.parent_button && spec.parent_button->isPressed()) {
3080 #if (IRRLICHT_VERSION_MAJOR == 1 && IRRLICHT_VERSION_MINOR < 8)
3081                         rect += core::dimension2d<s32>(
3082                                 0.05 * (float)rect.getWidth(), 0.05 * (float)rect.getHeight());
3083 #else
3084                         // Use image offset instead of text's because its a bit smaller
3085                         // and fits better, also TEXT_OFFSET_X is always 0
3086                         rect += core::dimension2d<s32>(
3087                                 skin->getSize(irr::gui::EGDS_BUTTON_PRESSED_IMAGE_OFFSET_X),
3088                                 skin->getSize(irr::gui::EGDS_BUTTON_PRESSED_IMAGE_OFFSET_Y));
3089 #endif
3090                 }
3091                 video::SColor color(255, 255, 255, 255);
3092                 m_font->draw(spec.text.c_str(), rect, color, true, true, &rect);
3093         }
3094
3095         /*
3096                 Draw fields/buttons tooltips
3097         */
3098         gui::IGUIElement *hovered =
3099                         Environment->getRootGUIElement()->getElementFromPoint(m_pointer);
3100
3101         if (hovered != NULL) {
3102                 s32 id = hovered->getID();
3103
3104                 u64 delta = 0;
3105                 if (id == -1) {
3106                         m_old_tooltip_id = id;
3107                 } else {
3108                         if (id == m_old_tooltip_id) {
3109                                 delta = porting::getDeltaMs(m_hovered_time, porting::getTimeMs());
3110                         } else {
3111                                 m_hovered_time = porting::getTimeMs();
3112                                 m_old_tooltip_id = id;
3113                         }
3114                 }
3115
3116                 // Find and update the current tooltip
3117                 if (id != -1 && delta >= m_tooltip_show_delay) {
3118                         for (const FieldSpec &field : m_fields) {
3119
3120                                 if (field.fid != id)
3121                                         continue;
3122
3123                                 const std::wstring &text = m_tooltips[field.fname].tooltip;
3124                                 if (!text.empty())
3125                                         showTooltip(text, m_tooltips[field.fname].color,
3126                                                 m_tooltips[field.fname].bgcolor);
3127
3128                                 break;
3129                         }
3130                 }
3131         }
3132
3133         m_tooltip_element->draw();
3134
3135         /*
3136                 Draw dragged item stack
3137         */
3138         drawSelectedItem();
3139
3140         skin->setFont(old_font);
3141 }
3142
3143
3144 void GUIFormSpecMenu::showTooltip(const std::wstring &text,
3145         const irr::video::SColor &color, const irr::video::SColor &bgcolor)
3146 {
3147         const std::wstring ntext = translate_string(text);
3148         m_tooltip_element->setOverrideColor(color);
3149         m_tooltip_element->setBackgroundColor(bgcolor);
3150         setStaticText(m_tooltip_element, ntext.c_str());
3151
3152         // Tooltip size and offset
3153         s32 tooltip_width = m_tooltip_element->getTextWidth() + m_btn_height;
3154 #if (IRRLICHT_VERSION_MAJOR <= 1 && IRRLICHT_VERSION_MINOR <= 8 && IRRLICHT_VERSION_REVISION < 2) || USE_FREETYPE == 1
3155         std::vector<std::wstring> text_rows = str_split(ntext, L'\n');
3156         s32 tooltip_height = m_tooltip_element->getTextHeight() * text_rows.size() + 5;
3157 #else
3158         s32 tooltip_height = m_tooltip_element->getTextHeight() + 5;
3159 #endif
3160         v2u32 screenSize = Environment->getVideoDriver()->getScreenSize();
3161         int tooltip_offset_x = m_btn_height;
3162         int tooltip_offset_y = m_btn_height;
3163 #ifdef __ANDROID__
3164         tooltip_offset_x *= 3;
3165         tooltip_offset_y  = 0;
3166         if (m_pointer.X > (s32)screenSize.X / 2)
3167                 tooltip_offset_x = -(tooltip_offset_x + tooltip_width);
3168 #endif
3169
3170         // Calculate and set the tooltip position
3171         s32 tooltip_x = m_pointer.X + tooltip_offset_x;
3172         s32 tooltip_y = m_pointer.Y + tooltip_offset_y;
3173         if (tooltip_x + tooltip_width > (s32)screenSize.X)
3174                 tooltip_x = (s32)screenSize.X - tooltip_width  - m_btn_height;
3175         if (tooltip_y + tooltip_height > (s32)screenSize.Y)
3176                 tooltip_y = (s32)screenSize.Y - tooltip_height - m_btn_height;
3177
3178         m_tooltip_element->setRelativePosition(
3179                 core::rect<s32>(
3180                         core::position2d<s32>(tooltip_x, tooltip_y),
3181                         core::dimension2d<s32>(tooltip_width, tooltip_height)
3182                 )
3183         );
3184
3185         // Display the tooltip
3186         m_tooltip_element->setVisible(true);
3187         bringToFront(m_tooltip_element);
3188 }
3189
3190 void GUIFormSpecMenu::updateSelectedItem()
3191 {
3192         verifySelectedItem();
3193
3194         // If craftresult is nonempty and nothing else is selected, select it now.
3195         if (!m_selected_item) {
3196                 for (const GUIFormSpecMenu::ListDrawSpec &s : m_inventorylists) {
3197                         if (s.listname != "craftpreview")
3198                                 continue;
3199
3200                         Inventory *inv = m_invmgr->getInventory(s.inventoryloc);
3201                         if (!inv)
3202                                 continue;
3203
3204                         InventoryList *list = inv->getList("craftresult");
3205
3206                         if (!list || list->getSize() == 0)
3207                                 continue;
3208
3209                         const ItemStack &item = list->getItem(0);
3210                         if (item.empty())
3211                                 continue;
3212
3213                         // Grab selected item from the crafting result list
3214                         m_selected_item = new ItemSpec;
3215                         m_selected_item->inventoryloc = s.inventoryloc;
3216                         m_selected_item->listname = "craftresult";
3217                         m_selected_item->i = 0;
3218                         m_selected_amount = item.count;
3219                         m_selected_dragging = false;
3220                         break;
3221                 }
3222         }
3223
3224         // If craftresult is selected, keep the whole stack selected
3225         if (m_selected_item && m_selected_item->listname == "craftresult")
3226                 m_selected_amount = verifySelectedItem().count;
3227 }
3228
3229 ItemStack GUIFormSpecMenu::verifySelectedItem()
3230 {
3231         // If the selected stack has become empty for some reason, deselect it.
3232         // If the selected stack has become inaccessible, deselect it.
3233         // If the selected stack has become smaller, adjust m_selected_amount.
3234         // Return the selected stack.
3235
3236         if(m_selected_item)
3237         {
3238                 if(m_selected_item->isValid())
3239                 {
3240                         Inventory *inv = m_invmgr->getInventory(m_selected_item->inventoryloc);
3241                         if(inv)
3242                         {
3243                                 InventoryList *list = inv->getList(m_selected_item->listname);
3244                                 if(list && (u32) m_selected_item->i < list->getSize())
3245                                 {
3246                                         ItemStack stack = list->getItem(m_selected_item->i);
3247                                         if (!m_selected_swap.empty()) {
3248                                                 if (m_selected_swap.name == stack.name &&
3249                                                                 m_selected_swap.count == stack.count)
3250                                                         m_selected_swap.clear();
3251                                         } else {
3252                                                 m_selected_amount = std::min(m_selected_amount, stack.count);
3253                                         }
3254
3255                                         if (!stack.empty())
3256                                                 return stack;
3257                                 }
3258                         }
3259                 }
3260
3261                 // selection was not valid
3262                 delete m_selected_item;
3263                 m_selected_item = NULL;
3264                 m_selected_amount = 0;
3265                 m_selected_dragging = false;
3266         }
3267         return ItemStack();
3268 }
3269
3270 void GUIFormSpecMenu::acceptInput(FormspecQuitMode quitmode=quit_mode_no)
3271 {
3272         if(m_text_dst)
3273         {
3274                 StringMap fields;
3275
3276                 if (quitmode == quit_mode_accept) {
3277                         fields["quit"] = "true";
3278                 }
3279
3280                 if (quitmode == quit_mode_cancel) {
3281                         fields["quit"] = "true";
3282                         m_text_dst->gotText(fields);
3283                         return;
3284                 }
3285
3286                 if (current_keys_pending.key_down) {
3287                         fields["key_down"] = "true";
3288                         current_keys_pending.key_down = false;
3289                 }
3290
3291                 if (current_keys_pending.key_up) {
3292                         fields["key_up"] = "true";
3293                         current_keys_pending.key_up = false;
3294                 }
3295
3296                 if (current_keys_pending.key_enter) {
3297                         fields["key_enter"] = "true";
3298                         current_keys_pending.key_enter = false;
3299                 }
3300
3301                 if (!current_field_enter_pending.empty()) {
3302                         fields["key_enter_field"] = current_field_enter_pending;
3303                         current_field_enter_pending = "";
3304                 }
3305
3306                 if (current_keys_pending.key_escape) {
3307                         fields["key_escape"] = "true";
3308                         current_keys_pending.key_escape = false;
3309                 }
3310
3311                 for (const GUIFormSpecMenu::FieldSpec &s : m_fields) {
3312                         if(s.send) {
3313                                 std::string name = s.fname;
3314                                 if (s.ftype == f_Button) {
3315                                         fields[name] = wide_to_utf8(s.flabel);
3316                                 } else if (s.ftype == f_Table) {
3317                                         GUITable *table = getTable(s.fname);
3318                                         if (table) {
3319                                                 fields[name] = table->checkEvent();
3320                                         }
3321                                 }
3322                                 else if(s.ftype == f_DropDown) {
3323                                         // no dynamic cast possible due to some distributions shipped
3324                                         // without rtti support in irrlicht
3325                                         IGUIElement * element = getElementFromId(s.fid);
3326                                         gui::IGUIComboBox *e = NULL;
3327                                         if ((element) && (element->getType() == gui::EGUIET_COMBO_BOX)) {
3328                                                 e = static_cast<gui::IGUIComboBox*>(element);
3329                                         }
3330                                         s32 selected = e->getSelected();
3331                                         if (selected >= 0) {
3332                                                 std::vector<std::string> *dropdown_values =
3333                                                         getDropDownValues(s.fname);
3334                                                 if (dropdown_values && selected < (s32)dropdown_values->size()) {
3335                                                         fields[name] = (*dropdown_values)[selected];
3336                                                 }
3337                                         }
3338                                 }
3339                                 else if (s.ftype == f_TabHeader) {
3340                                         // no dynamic cast possible due to some distributions shipped
3341                                         // without rttzi support in irrlicht
3342                                         IGUIElement * element = getElementFromId(s.fid);
3343                                         gui::IGUITabControl *e = NULL;
3344                                         if ((element) && (element->getType() == gui::EGUIET_TAB_CONTROL)) {
3345                                                 e = static_cast<gui::IGUITabControl *>(element);
3346                                         }
3347
3348                                         if (e != 0) {
3349                                                 std::stringstream ss;
3350                                                 ss << (e->getActiveTab() +1);
3351                                                 fields[name] = ss.str();
3352                                         }
3353                                 }
3354                                 else if (s.ftype == f_CheckBox) {
3355                                         // no dynamic cast possible due to some distributions shipped
3356                                         // without rtti support in irrlicht
3357                                         IGUIElement * element = getElementFromId(s.fid);
3358                                         gui::IGUICheckBox *e = NULL;
3359                                         if ((element) && (element->getType() == gui::EGUIET_CHECK_BOX)) {
3360                                                 e = static_cast<gui::IGUICheckBox*>(element);
3361                                         }
3362
3363                                         if (e != 0) {
3364                                                 if (e->isChecked())
3365                                                         fields[name] = "true";
3366                                                 else
3367                                                         fields[name] = "false";
3368                                         }
3369                                 }
3370                                 else if (s.ftype == f_ScrollBar) {
3371                                         // no dynamic cast possible due to some distributions shipped
3372                                         // without rtti support in irrlicht
3373                                         IGUIElement * element = getElementFromId(s.fid);
3374                                         gui::IGUIScrollBar *e = NULL;
3375                                         if ((element) && (element->getType() == gui::EGUIET_SCROLL_BAR)) {
3376                                                 e = static_cast<gui::IGUIScrollBar*>(element);
3377                                         }
3378
3379                                         if (e != 0) {
3380                                                 std::stringstream os;
3381                                                 os << e->getPos();
3382                                                 if (s.fdefault == L"Changed")
3383                                                         fields[name] = "CHG:" + os.str();
3384                                                 else
3385                                                         fields[name] = "VAL:" + os.str();
3386                                         }
3387                                 }
3388                                 else
3389                                 {
3390                                         IGUIElement* e = getElementFromId(s.fid);
3391                                         if(e != NULL) {
3392                                                 fields[name] = wide_to_utf8(e->getText());
3393                                         }
3394                                 }
3395                         }
3396                 }
3397
3398                 m_text_dst->gotText(fields);
3399         }
3400 }
3401
3402 static bool isChild(gui::IGUIElement * tocheck, gui::IGUIElement * parent)
3403 {
3404         while(tocheck != NULL) {
3405                 if (tocheck == parent) {
3406                         return true;
3407                 }
3408                 tocheck = tocheck->getParent();
3409         }
3410         return false;
3411 }
3412
3413 bool GUIFormSpecMenu::preprocessEvent(const SEvent& event)
3414 {
3415         // The IGUITabControl renders visually using the skin's selected
3416         // font, which we override for the duration of form drawing,
3417         // but computes tab hotspots based on how it would have rendered
3418         // using the font that is selected at the time of button release.
3419         // To make these two consistent, temporarily override the skin's
3420         // font while the IGUITabControl is processing the event.
3421         if (event.EventType == EET_MOUSE_INPUT_EVENT &&
3422                         event.MouseInput.Event == EMIE_LMOUSE_LEFT_UP) {
3423                 s32 x = event.MouseInput.X;
3424                 s32 y = event.MouseInput.Y;
3425                 gui::IGUIElement *hovered =
3426                         Environment->getRootGUIElement()->getElementFromPoint(
3427                                 core::position2d<s32>(x, y));
3428                 if (hovered && isMyChild(hovered) &&
3429                                 hovered->getType() == gui::EGUIET_TAB_CONTROL) {
3430                         gui::IGUISkin* skin = Environment->getSkin();
3431                         sanity_check(skin != NULL);
3432                         gui::IGUIFont *old_font = skin->getFont();
3433                         skin->setFont(m_font);
3434                         bool retval = hovered->OnEvent(event);
3435                         skin->setFont(old_font);
3436                         return retval;
3437                 }
3438         }
3439
3440         // Fix Esc/Return key being eaten by checkboxen and tables
3441         if(event.EventType==EET_KEY_INPUT_EVENT) {
3442                 KeyPress kp(event.KeyInput);
3443                 if (kp == EscapeKey || kp == CancelKey
3444                                 || kp == getKeySetting("keymap_inventory")
3445                                 || event.KeyInput.Key==KEY_RETURN) {
3446                         gui::IGUIElement *focused = Environment->getFocus();
3447                         if (focused && isMyChild(focused) &&
3448                                         (focused->getType() == gui::EGUIET_LIST_BOX ||
3449                                         focused->getType() == gui::EGUIET_CHECK_BOX) &&
3450                                         (focused->getParent()->getType() != gui::EGUIET_COMBO_BOX ||
3451                                         event.KeyInput.Key != KEY_RETURN)) {
3452                                 OnEvent(event);
3453                                 return true;
3454                         }
3455                 }
3456         }
3457         // Mouse wheel events: send to hovered element instead of focused
3458         if(event.EventType==EET_MOUSE_INPUT_EVENT
3459                         && event.MouseInput.Event == EMIE_MOUSE_WHEEL) {
3460                 s32 x = event.MouseInput.X;
3461                 s32 y = event.MouseInput.Y;
3462                 gui::IGUIElement *hovered =
3463                         Environment->getRootGUIElement()->getElementFromPoint(
3464                                 core::position2d<s32>(x, y));
3465                 if (hovered && isMyChild(hovered)) {
3466                         hovered->OnEvent(event);
3467                         return true;
3468                 }
3469         }
3470
3471         if (event.EventType == EET_MOUSE_INPUT_EVENT) {
3472                 s32 x = event.MouseInput.X;
3473                 s32 y = event.MouseInput.Y;
3474                 gui::IGUIElement *hovered =
3475                         Environment->getRootGUIElement()->getElementFromPoint(
3476                                 core::position2d<s32>(x, y));
3477                 if (event.MouseInput.Event == EMIE_LMOUSE_PRESSED_DOWN) {
3478                         m_old_tooltip_id = -1;
3479                 }
3480                 if (!isChild(hovered,this)) {
3481                         if (DoubleClickDetection(event)) {
3482                                 return true;
3483                         }
3484                 }
3485         }
3486
3487         if (event.EventType == irr::EET_JOYSTICK_INPUT_EVENT) {
3488                 /* TODO add a check like:
3489                 if (event.JoystickEvent != joystick_we_listen_for)
3490                         return false;
3491                 */
3492                 bool handled = m_joystick->handleEvent(event.JoystickEvent);
3493                 if (handled) {
3494                         if (m_joystick->wasKeyDown(KeyType::ESC)) {
3495                                 tryClose();
3496                         } else if (m_joystick->wasKeyDown(KeyType::JUMP)) {
3497                                 if (m_allowclose) {
3498                                         acceptInput(quit_mode_accept);
3499                                         quitMenu();
3500                                 }
3501                         }
3502                 }
3503                 return handled;
3504         }
3505
3506         return GUIModalMenu::preprocessEvent(event);
3507 }
3508
3509 /******************************************************************************/
3510 bool GUIFormSpecMenu::DoubleClickDetection(const SEvent event)
3511 {
3512         /* The following code is for capturing double-clicks of the mouse button
3513          * and translating the double-click into an EET_KEY_INPUT_EVENT event
3514          * -- which closes the form -- under some circumstances.
3515          *
3516          * There have been many github issues reporting this as a bug even though it
3517          * was an intended feature.  For this reason, remapping the double-click as
3518          * an ESC must be explicitly set when creating this class via the
3519          * /p remap_dbl_click parameter of the constructor.
3520          */
3521
3522         if (!m_remap_dbl_click)
3523                 return false;
3524
3525         if (event.MouseInput.Event == EMIE_LMOUSE_PRESSED_DOWN) {
3526                 m_doubleclickdetect[0].pos  = m_doubleclickdetect[1].pos;
3527                 m_doubleclickdetect[0].time = m_doubleclickdetect[1].time;
3528
3529                 m_doubleclickdetect[1].pos  = m_pointer;
3530                 m_doubleclickdetect[1].time = porting::getTimeMs();
3531         }
3532         else if (event.MouseInput.Event == EMIE_LMOUSE_LEFT_UP) {
3533                 u64 delta = porting::getDeltaMs(m_doubleclickdetect[0].time, porting::getTimeMs());
3534                 if (delta > 400) {
3535                         return false;
3536                 }
3537
3538                 double squaredistance =
3539                                 m_doubleclickdetect[0].pos
3540                                 .getDistanceFromSQ(m_doubleclickdetect[1].pos);
3541
3542                 if (squaredistance > (30*30)) {
3543                         return false;
3544                 }
3545
3546                 SEvent* translated = new SEvent();
3547                 assert(translated != 0);
3548                 //translate doubleclick to escape
3549                 memset(translated, 0, sizeof(SEvent));
3550                 translated->EventType = irr::EET_KEY_INPUT_EVENT;
3551                 translated->KeyInput.Key         = KEY_ESCAPE;
3552                 translated->KeyInput.Control     = false;
3553                 translated->KeyInput.Shift       = false;
3554                 translated->KeyInput.PressedDown = true;
3555                 translated->KeyInput.Char        = 0;
3556                 OnEvent(*translated);
3557
3558                 // no need to send the key up event as we're already deleted
3559                 // and no one else did notice this event
3560                 delete translated;
3561                 return true;
3562         }
3563
3564         return false;
3565 }
3566
3567 void GUIFormSpecMenu::tryClose()
3568 {
3569         if (m_allowclose) {
3570                 doPause = false;
3571                 acceptInput(quit_mode_cancel);
3572                 quitMenu();
3573         } else {
3574                 m_text_dst->gotText(L"MenuQuit");
3575         }
3576 }
3577
3578 enum ButtonEventType : u8
3579 {
3580         BET_LEFT,
3581         BET_RIGHT,
3582         BET_MIDDLE,
3583         BET_WHEEL_UP,
3584         BET_WHEEL_DOWN,
3585         BET_UP,
3586         BET_DOWN,
3587         BET_MOVE,
3588         BET_OTHER
3589 };
3590
3591 bool GUIFormSpecMenu::OnEvent(const SEvent& event)
3592 {
3593         if (event.EventType==EET_KEY_INPUT_EVENT) {
3594                 KeyPress kp(event.KeyInput);
3595                 if (event.KeyInput.PressedDown && (
3596                                 (kp == EscapeKey) || (kp == CancelKey) ||
3597                                 ((m_client != NULL) && (kp == getKeySetting("keymap_inventory"))))) {
3598                         tryClose();
3599                         return true;
3600                 }
3601
3602                 if (m_client != NULL && event.KeyInput.PressedDown &&
3603                                 (kp == getKeySetting("keymap_screenshot"))) {
3604                         m_client->makeScreenshot();
3605                 }
3606                 if (event.KeyInput.PressedDown &&
3607                         (event.KeyInput.Key==KEY_RETURN ||
3608                          event.KeyInput.Key==KEY_UP ||
3609                          event.KeyInput.Key==KEY_DOWN)
3610                         ) {
3611                         switch (event.KeyInput.Key) {
3612                                 case KEY_RETURN:
3613                                         current_keys_pending.key_enter = true;
3614                                         break;
3615                                 case KEY_UP:
3616                                         current_keys_pending.key_up = true;
3617                                         break;
3618                                 case KEY_DOWN:
3619                                         current_keys_pending.key_down = true;
3620                                         break;
3621                                 break;
3622                                 default:
3623                                         //can't happen at all!
3624                                         FATAL_ERROR("Reached a source line that can't ever been reached");
3625                                         break;
3626                         }
3627                         if (current_keys_pending.key_enter && m_allowclose) {
3628                                 acceptInput(quit_mode_accept);
3629                                 quitMenu();
3630                         } else {
3631                                 acceptInput();
3632                         }
3633                         return true;
3634                 }
3635
3636         }
3637
3638         /* Mouse event other than movement, or crossing the border of inventory
3639           field while holding right mouse button
3640          */
3641         if (event.EventType == EET_MOUSE_INPUT_EVENT &&
3642                         (event.MouseInput.Event != EMIE_MOUSE_MOVED ||
3643                          (event.MouseInput.Event == EMIE_MOUSE_MOVED &&
3644                           event.MouseInput.isRightPressed() &&
3645                           getItemAtPos(m_pointer).i != getItemAtPos(m_old_pointer).i))) {
3646
3647                 // Get selected item and hovered/clicked item (s)
3648
3649                 m_old_tooltip_id = -1;
3650                 updateSelectedItem();
3651                 ItemSpec s = getItemAtPos(m_pointer);
3652
3653                 Inventory *inv_selected = NULL;
3654                 Inventory *inv_s = NULL;
3655                 InventoryList *list_s = NULL;
3656
3657                 if (m_selected_item) {
3658                         inv_selected = m_invmgr->getInventory(m_selected_item->inventoryloc);
3659                         sanity_check(inv_selected);
3660                         sanity_check(inv_selected->getList(m_selected_item->listname) != NULL);
3661                 }
3662
3663                 u32 s_count = 0;
3664
3665                 if (s.isValid())
3666                 do { // breakable
3667                         inv_s = m_invmgr->getInventory(s.inventoryloc);
3668
3669                         if (!inv_s) {
3670                                 errorstream << "InventoryMenu: The selected inventory location "
3671                                                 << "\"" << s.inventoryloc.dump() << "\" doesn't exist"
3672                                                 << std::endl;
3673                                 s.i = -1;  // make it invalid again
3674                                 break;
3675                         }
3676
3677                         list_s = inv_s->getList(s.listname);
3678                         if (list_s == NULL) {
3679                                 verbosestream << "InventoryMenu: The selected inventory list \""
3680                                                 << s.listname << "\" does not exist" << std::endl;
3681                                 s.i = -1;  // make it invalid again
3682                                 break;
3683                         }
3684
3685                         if ((u32)s.i >= list_s->getSize()) {
3686                                 infostream << "InventoryMenu: The selected inventory list \""
3687                                                 << s.listname << "\" is too small (i=" << s.i << ", size="
3688                                                 << list_s->getSize() << ")" << std::endl;
3689                                 s.i = -1;  // make it invalid again
3690                                 break;
3691                         }
3692
3693                         s_count = list_s->getItem(s.i).count;
3694                 } while(0);
3695
3696                 bool identical = m_selected_item && s.isValid() &&
3697                         (inv_selected == inv_s) &&
3698                         (m_selected_item->listname == s.listname) &&
3699                         (m_selected_item->i == s.i);
3700
3701                 ButtonEventType button = BET_LEFT;
3702                 ButtonEventType updown = BET_OTHER;
3703                 switch (event.MouseInput.Event) {
3704                 case EMIE_LMOUSE_PRESSED_DOWN:
3705                         button = BET_LEFT; updown = BET_DOWN;
3706                         break;
3707                 case EMIE_RMOUSE_PRESSED_DOWN:
3708                         button = BET_RIGHT; updown = BET_DOWN;
3709                         break;
3710                 case EMIE_MMOUSE_PRESSED_DOWN:
3711                         button = BET_MIDDLE; updown = BET_DOWN;
3712                         break;
3713                 case EMIE_MOUSE_WHEEL:
3714                         button = (event.MouseInput.Wheel > 0) ?
3715                                 BET_WHEEL_UP : BET_WHEEL_DOWN;
3716                         updown = BET_DOWN;
3717                         break;
3718                 case EMIE_LMOUSE_LEFT_UP:
3719                         button = BET_LEFT; updown = BET_UP;
3720                         break;
3721                 case EMIE_RMOUSE_LEFT_UP:
3722                         button = BET_RIGHT; updown = BET_UP;
3723                         break;
3724                 case EMIE_MMOUSE_LEFT_UP:
3725                         button = BET_MIDDLE; updown = BET_UP;
3726                         break;
3727                 case EMIE_MOUSE_MOVED:
3728                         updown = BET_MOVE;
3729                         break;
3730                 default:
3731                         break;
3732                 }
3733
3734                 // Set this number to a positive value to generate a move action
3735                 // from m_selected_item to s.
3736                 u32 move_amount = 0;
3737
3738                 // Set this number to a positive value to generate a move action
3739                 // from s to the next inventory ring.
3740                 u32 shift_move_amount = 0;
3741
3742                 // Set this number to a positive value to generate a drop action
3743                 // from m_selected_item.
3744                 u32 drop_amount = 0;
3745
3746                 // Set this number to a positive value to generate a craft action at s.
3747                 u32 craft_amount = 0;
3748
3749                 switch (updown) {
3750                 case BET_DOWN:
3751                         // Some mouse button has been pressed
3752
3753                         //infostream<<"Mouse button "<<button<<" pressed at p=("
3754                         //      <<p.X<<","<<p.Y<<")"<<std::endl;
3755
3756                         m_selected_dragging = false;
3757
3758                         if (s.isValid() && s.listname == "craftpreview") {
3759                                 // Craft preview has been clicked: craft
3760                                 craft_amount = (button == BET_MIDDLE ? 10 : 1);
3761                         } else if (!m_selected_item) {
3762                                 if (s_count && button != BET_WHEEL_UP) {
3763                                         // Non-empty stack has been clicked: select or shift-move it
3764                                         m_selected_item = new ItemSpec(s);
3765
3766                                         u32 count;
3767                                         if (button == BET_RIGHT)
3768                                                 count = (s_count + 1) / 2;
3769                                         else if (button == BET_MIDDLE)
3770                                                 count = MYMIN(s_count, 10);
3771                                         else if (button == BET_WHEEL_DOWN)
3772                                                 count = 1;
3773                                         else  // left
3774                                                 count = s_count;
3775
3776                                         if (!event.MouseInput.Shift) {
3777                                                 // no shift: select item
3778                                                 m_selected_amount = count;
3779                                                 m_selected_dragging = button != BET_WHEEL_DOWN;
3780                                                 m_auto_place = false;
3781                                         } else {
3782                                                 // shift pressed: move item, right click moves 1
3783                                                 shift_move_amount = button == BET_RIGHT ? 1 : count;
3784                                         }
3785                                 }
3786                         } else { // m_selected_item != NULL
3787                                 assert(m_selected_amount >= 1);
3788
3789                                 if (s.isValid()) {
3790                                         // Clicked a slot: move
3791                                         if (button == BET_RIGHT || button == BET_WHEEL_UP)
3792                                                 move_amount = 1;
3793                                         else if (button == BET_MIDDLE)
3794                                                 move_amount = MYMIN(m_selected_amount, 10);
3795                                         else if (button == BET_LEFT)
3796                                                 move_amount = m_selected_amount;
3797                                         // else wheeldown
3798
3799                                         if (identical) {
3800                                                 if (button == BET_WHEEL_DOWN) {
3801                                                         if (m_selected_amount < s_count)
3802                                                                 ++m_selected_amount;
3803                                                 } else {
3804                                                         if (move_amount >= m_selected_amount)
3805                                                                 m_selected_amount = 0;
3806                                                         else
3807                                                                 m_selected_amount -= move_amount;
3808                                                         move_amount = 0;
3809                                                 }
3810                                         }
3811                                 } else if (!getAbsoluteClippingRect().isPointInside(m_pointer)
3812                                                 && button != BET_WHEEL_DOWN) {
3813                                         // Clicked outside of the window: drop
3814                                         if (button == BET_RIGHT || button == BET_WHEEL_UP)
3815                                                 drop_amount = 1;
3816                                         else if (button == BET_MIDDLE)
3817                                                 drop_amount = MYMIN(m_selected_amount, 10);
3818                                         else  // left
3819                                                 drop_amount = m_selected_amount;
3820                                 }
3821                         }
3822                 break;
3823                 case BET_UP:
3824                         // Some mouse button has been released
3825
3826                         //infostream<<"Mouse button "<<button<<" released at p=("
3827                         //      <<p.X<<","<<p.Y<<")"<<std::endl;
3828
3829                         if (m_selected_dragging && m_selected_item) {
3830                                 if (s.isValid()) {
3831                                         if (!identical) {
3832                                                 // Dragged to different slot: move all selected
3833                                                 move_amount = m_selected_amount;
3834                                         }
3835                                 } else if (!getAbsoluteClippingRect().isPointInside(m_pointer)) {
3836                                         // Dragged outside of window: drop all selected
3837                                         drop_amount = m_selected_amount;
3838                                 }
3839                         }
3840
3841                         m_selected_dragging = false;
3842                         // Keep track of whether the mouse button be released
3843                         // One click is drag without dropping. Click + release
3844                         // + click changes to drop item when moved mode
3845                         if (m_selected_item)
3846                                 m_auto_place = true;
3847                 break;
3848                 case BET_MOVE:
3849                         // Mouse has been moved and rmb is down and mouse pointer just
3850                         // entered a new inventory field (checked in the entry-if, this
3851                         // is the only action here that is generated by mouse movement)
3852                         if (m_selected_item && s.isValid() && s.listname != "craftpreview") {
3853                                 // Move 1 item
3854                                 // TODO: middle mouse to move 10 items might be handy
3855                                 if (m_auto_place) {
3856                                         // Only move an item if the destination slot is empty
3857                                         // or contains the same item type as what is going to be
3858                                         // moved
3859                                         InventoryList *list_from = inv_selected->getList(m_selected_item->listname);
3860                                         InventoryList *list_to = list_s;
3861                                         assert(list_from && list_to);
3862                                         ItemStack stack_from = list_from->getItem(m_selected_item->i);
3863                                         ItemStack stack_to = list_to->getItem(s.i);
3864                                         if (stack_to.empty() || stack_to.name == stack_from.name)
3865                                                 move_amount = 1;
3866                                 }
3867                         }
3868                 break;
3869                 default:
3870                         break;
3871                 }
3872
3873                 // Possibly send inventory action to server
3874                 if (move_amount > 0) {
3875                         // Send IAction::Move
3876
3877                         assert(m_selected_item && m_selected_item->isValid());
3878                         assert(s.isValid());
3879
3880                         assert(inv_selected && inv_s);
3881                         InventoryList *list_from = inv_selected->getList(m_selected_item->listname);
3882                         InventoryList *list_to = list_s;
3883                         assert(list_from && list_to);
3884                         ItemStack stack_from = list_from->getItem(m_selected_item->i);
3885                         ItemStack stack_to = list_to->getItem(s.i);
3886
3887                         // Check how many items can be moved
3888                         move_amount = stack_from.count = MYMIN(move_amount, stack_from.count);
3889                         ItemStack leftover = stack_to.addItem(stack_from, m_client->idef());
3890                         bool move = true;
3891                         // If source stack cannot be added to destination stack at all,
3892                         // they are swapped
3893                         if (leftover.count == stack_from.count &&
3894                                         leftover.name == stack_from.name) {
3895
3896                                 if (m_selected_swap.empty()) {
3897                                         m_selected_amount = stack_to.count;
3898                                         m_selected_dragging = false;
3899
3900                                         // WARNING: BLACK MAGIC, BUT IN A REDUCED SET
3901                                         // Skip next validation checks due async inventory calls
3902                                         m_selected_swap = stack_to;
3903                                 } else {
3904                                         move = false;
3905                                 }
3906                         }
3907                         // Source stack goes fully into destination stack
3908                         else if (leftover.empty()) {
3909                                 m_selected_amount -= move_amount;
3910                         }
3911                         // Source stack goes partly into destination stack
3912                         else {
3913                                 move_amount -= leftover.count;
3914                                 m_selected_amount -= move_amount;
3915                         }
3916
3917                         if (move) {
3918                                 infostream << "Handing IAction::Move to manager" << std::endl;
3919                                 IMoveAction *a = new IMoveAction();
3920                                 a->count = move_amount;
3921                                 a->from_inv = m_selected_item->inventoryloc;
3922                                 a->from_list = m_selected_item->listname;
3923                                 a->from_i = m_selected_item->i;
3924                                 a->to_inv = s.inventoryloc;
3925                                 a->to_list = s.listname;
3926                                 a->to_i = s.i;
3927                                 m_invmgr->inventoryAction(a);
3928                         }
3929                 } else if (shift_move_amount > 0) {
3930                         u32 mis = m_inventory_rings.size();
3931                         u32 i = 0;
3932                         for (; i < mis; i++) {
3933                                 const ListRingSpec &sp = m_inventory_rings[i];
3934                                 if (sp.inventoryloc == s.inventoryloc
3935                                                 && sp.listname == s.listname)
3936                                         break;
3937                         }
3938                         do {
3939                                 if (i >= mis) // if not found
3940                                         break;
3941                                 u32 to_inv_ind = (i + 1) % mis;
3942                                 const ListRingSpec &to_inv_sp = m_inventory_rings[to_inv_ind];
3943                                 InventoryList *list_from = list_s;
3944                                 if (!s.isValid())
3945                                         break;
3946                                 Inventory *inv_to = m_invmgr->getInventory(to_inv_sp.inventoryloc);
3947                                 if (!inv_to)
3948                                         break;
3949                                 InventoryList *list_to = inv_to->getList(to_inv_sp.listname);
3950                                 if (!list_to)
3951                                         break;
3952                                 ItemStack stack_from = list_from->getItem(s.i);
3953                                 assert(shift_move_amount <= stack_from.count);
3954
3955                                 infostream << "Handing IAction::Move to manager" << std::endl;
3956                                 IMoveAction *a = new IMoveAction();
3957                                 a->count = shift_move_amount;
3958                                 a->from_inv = s.inventoryloc;
3959                                 a->from_list = s.listname;
3960                                 a->from_i = s.i;
3961                                 a->to_inv = to_inv_sp.inventoryloc;
3962                                 a->to_list = to_inv_sp.listname;
3963                                 a->move_somewhere = true;
3964                                 m_invmgr->inventoryAction(a);
3965                         } while (0);
3966                 } else if (drop_amount > 0) {
3967                         // Send IAction::Drop
3968
3969                         assert(m_selected_item && m_selected_item->isValid());
3970                         assert(inv_selected);
3971                         InventoryList *list_from = inv_selected->getList(m_selected_item->listname);
3972                         assert(list_from);
3973                         ItemStack stack_from = list_from->getItem(m_selected_item->i);
3974
3975                         // Check how many items can be dropped
3976                         drop_amount = stack_from.count = MYMIN(drop_amount, stack_from.count);
3977                         assert(drop_amount > 0 && drop_amount <= m_selected_amount);
3978                         m_selected_amount -= drop_amount;
3979
3980                         infostream << "Handing IAction::Drop to manager" << std::endl;
3981                         IDropAction *a = new IDropAction();
3982                         a->count = drop_amount;
3983                         a->from_inv = m_selected_item->inventoryloc;
3984                         a->from_list = m_selected_item->listname;
3985                         a->from_i = m_selected_item->i;
3986                         m_invmgr->inventoryAction(a);
3987                 } else if (craft_amount > 0) {
3988                         assert(s.isValid());
3989
3990                         // if there are no items selected or the selected item
3991                         // belongs to craftresult list, proceed with crafting
3992                         if (m_selected_item == NULL ||
3993                                         !m_selected_item->isValid() || m_selected_item->listname == "craftresult") {
3994
3995                                 assert(inv_s);
3996
3997                                 // Send IACTION_CRAFT
3998                                 infostream << "Handing IACTION_CRAFT to manager" << std::endl;
3999                                 ICraftAction *a = new ICraftAction();
4000                                 a->count = craft_amount;
4001                                 a->craft_inv = s.inventoryloc;
4002                                 m_invmgr->inventoryAction(a);
4003                         }
4004                 }
4005
4006                 // If m_selected_amount has been decreased to zero, deselect
4007                 if (m_selected_amount == 0) {
4008                         m_selected_swap.clear();
4009                         delete m_selected_item;
4010                         m_selected_item = NULL;
4011                         m_selected_amount = 0;
4012                         m_selected_dragging = false;
4013                 }
4014                 m_old_pointer = m_pointer;
4015         }
4016         if (event.EventType == EET_GUI_EVENT) {
4017
4018                 if (event.GUIEvent.EventType == gui::EGET_TAB_CHANGED
4019                                 && isVisible()) {
4020                         // find the element that was clicked
4021                         for (GUIFormSpecMenu::FieldSpec &s : m_fields) {
4022                                 if ((s.ftype == f_TabHeader) &&
4023                                                 (s.fid == event.GUIEvent.Caller->getID())) {
4024                                         s.send = true;
4025                                         acceptInput();
4026                                         s.send = false;
4027                                         return true;
4028                                 }
4029                         }
4030                 }
4031                 if (event.GUIEvent.EventType == gui::EGET_ELEMENT_FOCUS_LOST
4032                                 && isVisible()) {
4033                         if (!canTakeFocus(event.GUIEvent.Element)) {
4034                                 infostream<<"GUIFormSpecMenu: Not allowing focus change."
4035                                                 <<std::endl;
4036                                 // Returning true disables focus change
4037                                 return true;
4038                         }
4039                 }
4040                 if ((event.GUIEvent.EventType == gui::EGET_BUTTON_CLICKED) ||
4041                                 (event.GUIEvent.EventType == gui::EGET_CHECKBOX_CHANGED) ||
4042                                 (event.GUIEvent.EventType == gui::EGET_COMBO_BOX_CHANGED) ||
4043                                 (event.GUIEvent.EventType == gui::EGET_SCROLL_BAR_CHANGED)) {
4044                         unsigned int btn_id = event.GUIEvent.Caller->getID();
4045
4046                         if (btn_id == 257) {
4047                                 if (m_allowclose) {
4048                                         acceptInput(quit_mode_accept);
4049                                         quitMenu();
4050                                 } else {
4051                                         acceptInput();
4052                                         m_text_dst->gotText(L"ExitButton");
4053                                 }
4054                                 // quitMenu deallocates menu
4055                                 return true;
4056                         }
4057
4058                         // find the element that was clicked
4059                         for (GUIFormSpecMenu::FieldSpec &s : m_fields) {
4060                                 // if its a button, set the send field so
4061                                 // lua knows which button was pressed
4062                                 if ((s.ftype == f_Button || s.ftype == f_CheckBox) &&
4063                                                 s.fid == event.GUIEvent.Caller->getID()) {
4064                                         s.send = true;
4065                                         if (s.is_exit) {
4066                                                 if (m_allowclose) {
4067                                                         acceptInput(quit_mode_accept);
4068                                                         quitMenu();
4069                                                 } else {
4070                                                         m_text_dst->gotText(L"ExitButton");
4071                                                 }
4072                                                 return true;
4073                                         }
4074
4075                                         acceptInput(quit_mode_no);
4076                                         s.send = false;
4077                                         return true;
4078
4079                                 } else if ((s.ftype == f_DropDown) &&
4080                                                 (s.fid == event.GUIEvent.Caller->getID())) {
4081                                         // only send the changed dropdown
4082                                         for (GUIFormSpecMenu::FieldSpec &s2 : m_fields) {
4083                                                 if (s2.ftype == f_DropDown) {
4084                                                         s2.send = false;
4085                                                 }
4086                                         }
4087                                         s.send = true;
4088                                         acceptInput(quit_mode_no);
4089
4090                                         // revert configuration to make sure dropdowns are sent on
4091                                         // regular button click
4092                                         for (GUIFormSpecMenu::FieldSpec &s2 : m_fields) {
4093                                                 if (s2.ftype == f_DropDown) {
4094                                                         s2.send = true;
4095                                                 }
4096                                         }
4097                                         return true;
4098                                 } else if ((s.ftype == f_ScrollBar) &&
4099                                                 (s.fid == event.GUIEvent.Caller->getID())) {
4100                                         s.fdefault = L"Changed";
4101                                         acceptInput(quit_mode_no);
4102                                         s.fdefault = L"";
4103                                 }
4104                         }
4105                 }
4106
4107                 if (event.GUIEvent.EventType == gui::EGET_EDITBOX_ENTER) {
4108                         if (event.GUIEvent.Caller->getID() > 257) {
4109                                 bool close_on_enter = true;
4110                                 for (GUIFormSpecMenu::FieldSpec &s : m_fields) {
4111                                         if (s.ftype == f_Unknown &&
4112                                                         s.fid == event.GUIEvent.Caller->getID()) {
4113                                                 current_field_enter_pending = s.fname;
4114                                                 std::unordered_map<std::string, bool>::const_iterator it =
4115                                                         field_close_on_enter.find(s.fname);
4116                                                 if (it != field_close_on_enter.end())
4117                                                         close_on_enter = (*it).second;
4118
4119                                                 break;
4120                                         }
4121                                 }
4122
4123                                 if (m_allowclose && close_on_enter) {
4124                                         current_keys_pending.key_enter = true;
4125                                         acceptInput(quit_mode_accept);
4126                                         quitMenu();
4127                                 } else {
4128                                         current_keys_pending.key_enter = true;
4129                                         acceptInput();
4130                                 }
4131                                 // quitMenu deallocates menu
4132                                 return true;
4133                         }
4134                 }
4135
4136                 if (event.GUIEvent.EventType == gui::EGET_TABLE_CHANGED) {
4137                         int current_id = event.GUIEvent.Caller->getID();
4138                         if (current_id > 257) {
4139                                 // find the element that was clicked
4140                                 for (GUIFormSpecMenu::FieldSpec &s : m_fields) {
4141                                         // if it's a table, set the send field
4142                                         // so lua knows which table was changed
4143                                         if ((s.ftype == f_Table) && (s.fid == current_id)) {
4144                                                 s.send = true;
4145                                                 acceptInput();
4146                                                 s.send=false;
4147                                         }
4148                                 }
4149                                 return true;
4150                         }
4151                 }
4152         }
4153
4154         return Parent ? Parent->OnEvent(event) : false;
4155 }
4156
4157 /**
4158  * get name of element by element id
4159  * @param id of element
4160  * @return name string or empty string
4161  */
4162 std::string GUIFormSpecMenu::getNameByID(s32 id)
4163 {
4164         for (FieldSpec &spec : m_fields) {
4165                 if (spec.fid == id) {
4166                         return spec.fname;
4167                 }
4168         }
4169         return "";
4170 }
4171
4172 /**
4173  * get label of element by id
4174  * @param id of element
4175  * @return label string or empty string
4176  */
4177 std::wstring GUIFormSpecMenu::getLabelByID(s32 id)
4178 {
4179         for (FieldSpec &spec : m_fields) {
4180                 if (spec.fid == id) {
4181                         return spec.flabel;
4182                 }
4183         }
4184         return L"";
4185 }
4186
4187 StyleSpec GUIFormSpecMenu::getStyleForElement(const std::string &type,
4188                 const std::string &name, const std::string &parent_type) {
4189         StyleSpec ret;
4190
4191         if (!parent_type.empty()) {
4192                 auto it = theme_by_type.find(parent_type);
4193                 if (it != theme_by_type.end()) {
4194                         ret |= it->second;
4195                 }
4196         }
4197
4198         auto it = theme_by_type.find(type);
4199         if (it != theme_by_type.end()) {
4200                 ret |= it->second;
4201         }
4202
4203         it = theme_by_name.find(name);
4204         if (it != theme_by_name.end()) {
4205                 ret |= it->second;
4206         }
4207
4208         return ret;
4209 }