src/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 "guiFormSpecMenu.h"
  27 #include "guiTable.h"
  28 #include "constants.h"
  29 #include "gamedef.h"
  30 #include "keycode.h"
  31 #include "strfnd.h"
  32 #include <IGUICheckBox.h>
  33 #include <IGUIEditBox.h>
  34 #include <IGUIButton.h>
  35 #include <IGUIStaticText.h>
  36 #include <IGUIFont.h>
  37 #include <IGUITabControl.h>
  38 #include <IGUIComboBox.h>
  39 #include "log.h"
  40 #include "client/tile.h" // ITextureSource
  41 #include "hud.h" // drawItemStack
  42 #include "filesys.h"
  43 #include "gettime.h"
  44 #include "gettext.h"
  45 #include "scripting_game.h"
  46 #include "porting.h"
  47 #include "settings.h"
  48 #include "client.h"
  49 #include "fontengine.h"
  50 #include "util/hex.h"
  51 #include "util/numeric.h"
  52 #include "util/string.h" // for parseColorString()
  53 #include "guiscalingfilter.h"
  54
  55 #if USE_FREETYPE && IRRLICHT_VERSION_MAJOR == 1 && IRRLICHT_VERSION_MINOR < 9
  56 #include "intlGUIEditBox.h"
  57 #endif
  58
  59 #define MY_CHECKPOS(a,b)                                                                                                        \
  60         if (v_pos.size() != 2) {                                                                                                \
  61                 errorstream<< "Invalid pos for element " << a << "specified: \""        \
  62                         << parts[b] << "\"" << std::endl;                                                               \
  63                         return;                                                                                                                 \
  64         }
  65
  66 #define MY_CHECKGEOM(a,b)                                                                                                       \
  67         if (v_geom.size() != 2) {                                                                                               \
  68                 errorstream<< "Invalid pos for element " << a << "specified: \""        \
  69                         << parts[b] << "\"" << std::endl;                                                               \
  70                         return;                                                                                                                 \
  71         }
  72 /*
  73         GUIFormSpecMenu
  74 */
  75 static unsigned int font_line_height(gui::IGUIFont *font)
  76 {
  77         return font->getDimension(L"Ay").Height + font->getKerningHeight();
  78 }
  79
  80 GUIFormSpecMenu::GUIFormSpecMenu(irr::IrrlichtDevice* dev,
  81                 gui::IGUIElement* parent, s32 id, IMenuManager *menumgr,
  82                 InventoryManager *invmgr, IGameDef *gamedef,
  83                 ISimpleTextureSource *tsrc, IFormSource* fsrc, TextDest* tdst,
  84                 Client* client, bool remap_dbl_click) :
  85         GUIModalMenu(dev->getGUIEnvironment(), parent, id, menumgr),
  86         m_device(dev),
  87         m_invmgr(invmgr),
  88         m_gamedef(gamedef),
  89         m_tsrc(tsrc),
  90         m_client(client),
  91         m_selected_item(NULL),
  92         m_selected_amount(0),
  93         m_selected_dragging(false),
  94         m_tooltip_element(NULL),
  95         m_hovered_time(0),
  96         m_old_tooltip_id(-1),
  97         m_rmouse_auto_place(false),
  98         m_allowclose(true),
  99         m_lock(false),
 100         m_form_src(fsrc),
 101         m_text_dst(tdst),
 102         m_formspec_version(0),
 103         m_focused_element(""),
 104         m_font(NULL),
 105         m_remap_dbl_click(remap_dbl_click)
 106 #ifdef __ANDROID__
 107         , m_JavaDialogFieldName("")
 108 #endif
 109 {
 110         current_keys_pending.key_down = false;
 111         current_keys_pending.key_up = false;
 112         current_keys_pending.key_enter = false;
 113         current_keys_pending.key_escape = false;
 114
 115         m_doubleclickdetect[0].time = 0;
 116         m_doubleclickdetect[1].time = 0;
 117
 118         m_doubleclickdetect[0].pos = v2s32(0, 0);
 119         m_doubleclickdetect[1].pos = v2s32(0, 0);
 120
 121         m_tooltip_show_delay = (u32)g_settings->getS32("tooltip_show_delay");
 122 }
 123
 124 GUIFormSpecMenu::~GUIFormSpecMenu()
 125 {
 126         removeChildren();
 127
 128         for (u32 i = 0; i < m_tables.size(); ++i) {
 129                 GUITable *table = m_tables[i].second;
 130                 table->drop();
 131         }
 132
 133         delete m_selected_item;
 134
 135         if (m_form_src != NULL) {
 136                 delete m_form_src;
 137         }
 138         if (m_text_dst != NULL) {
 139                 delete m_text_dst;
 140         }
 141 }
 142
 143 void GUIFormSpecMenu::removeChildren()
 144 {
 145         const core::list<gui::IGUIElement*> &children = getChildren();
 146
 147         while(!children.empty()) {
 148                 (*children.getLast())->remove();
 149         }
 150
 151         if(m_tooltip_element) {
 152                 m_tooltip_element->remove();
 153                 m_tooltip_element->drop();
 154                 m_tooltip_element = NULL;
 155         }
 156
 157 }
 158
 159 void GUIFormSpecMenu::setInitialFocus()
 160 {
 161         // Set initial focus according to following order of precedence:
 162         // 1. first empty editbox
 163         // 2. first editbox
 164         // 3. first table
 165         // 4. last button
 166         // 5. first focusable (not statictext, not tabheader)
 167         // 6. first child element
 168
 169         core::list<gui::IGUIElement*> children = getChildren();
 170
 171         // in case "children" contains any NULL elements, remove them
 172         for (core::list<gui::IGUIElement*>::Iterator it = children.begin();
 173                         it != children.end();) {
 174                 if (*it)
 175                         ++it;
 176                 else
 177                         it = children.erase(it);
 178         }
 179
 180         // 1. first empty editbox
 181         for (core::list<gui::IGUIElement*>::Iterator it = children.begin();
 182                         it != children.end(); ++it) {
 183                 if ((*it)->getType() == gui::EGUIET_EDIT_BOX
 184                                 && (*it)->getText()[0] == 0) {
 185                         Environment->setFocus(*it);
 186                         return;
 187                 }
 188         }
 189
 190         // 2. first editbox
 191         for (core::list<gui::IGUIElement*>::Iterator it = children.begin();
 192                         it != children.end(); ++it) {
 193                 if ((*it)->getType() == gui::EGUIET_EDIT_BOX) {
 194                         Environment->setFocus(*it);
 195                         return;
 196                 }
 197         }
 198
 199         // 3. first table
 200         for (core::list<gui::IGUIElement*>::Iterator it = children.begin();
 201                         it != children.end(); ++it) {
 202                 if ((*it)->getTypeName() == std::string("GUITable")) {
 203                         Environment->setFocus(*it);
 204                         return;
 205                 }
 206         }
 207
 208         // 4. last button
 209         for (core::list<gui::IGUIElement*>::Iterator it = children.getLast();
 210                         it != children.end(); --it) {
 211                 if ((*it)->getType() == gui::EGUIET_BUTTON) {
 212                         Environment->setFocus(*it);
 213                         return;
 214                 }
 215         }
 216
 217         // 5. first focusable (not statictext, not tabheader)
 218         for (core::list<gui::IGUIElement*>::Iterator it = children.begin();
 219                         it != children.end(); ++it) {
 220                 if ((*it)->getType() != gui::EGUIET_STATIC_TEXT &&
 221                                 (*it)->getType() != gui::EGUIET_TAB_CONTROL) {
 222                         Environment->setFocus(*it);
 223                         return;
 224                 }
 225         }
 226
 227         // 6. first child element
 228         if (children.empty())
 229                 Environment->setFocus(this);
 230         else
 231                 Environment->setFocus(*(children.begin()));
 232 }
 233
 234 GUITable* GUIFormSpecMenu::getTable(const std::string &tablename)
 235 {
 236         for (u32 i = 0; i < m_tables.size(); ++i) {
 237                 if (tablename == m_tables[i].first.fname)
 238                         return m_tables[i].second;
 239         }
 240         return 0;
 241 }
 242
 243 static std::vector<std::string> split(const std::string &s, char delim)
 244 {
 245         std::vector<std::string> tokens;
 246
 247         std::string current = "";
 248         bool last_was_escape = false;
 249         for (unsigned int i = 0; i < s.size(); i++) {
 250                 char si = s.c_str()[i];
 251                 if (last_was_escape) {
 252                         current += '\\';
 253                         current += si;
 254                         last_was_escape = false;
 255                 } else {
 256                         if (si == delim) {
 257                                 tokens.push_back(current);
 258                                 current = "";
 259                                 last_was_escape = false;
 260                         } else if (si == '\\') {
 261                                 last_was_escape = true;
 262                         } else {
 263                                 current += si;
 264                                 last_was_escape = false;
 265                         }
 266                 }
 267         }
 268         //push last element
 269         tokens.push_back(current);
 270
 271         return tokens;
 272 }
 273
 274 void GUIFormSpecMenu::parseSize(parserData* data,std::string element)
 275 {
 276         std::vector<std::string> parts = split(element,',');
 277
 278         if (((parts.size() == 2) || parts.size() == 3) ||
 279                 ((parts.size() > 3) && (m_formspec_version > FORMSPEC_API_VERSION)))
 280         {
 281                 if (parts[1].find(';') != std::string::npos)
 282                         parts[1] = parts[1].substr(0,parts[1].find(';'));
 283
 284                 data->invsize.X = MYMAX(0, stof(parts[0]));
 285                 data->invsize.Y = MYMAX(0, stof(parts[1]));
 286
 287                 lockSize(false);
 288                 if (parts.size() == 3) {
 289                         if (parts[2] == "true") {
 290                                 lockSize(true,v2u32(800,600));
 291                         }
 292                 }
 293
 294                 data->explicit_size = true;
 295                 return;
 296         }
 297         errorstream<< "Invalid size element (" << parts.size() << "): '" << element << "'"  << std::endl;
 298 }
 299
 300 void GUIFormSpecMenu::parseList(parserData* data,std::string element)
 301 {
 302         if (m_gamedef == 0) {
 303                 errorstream<<"WARNING: invalid use of 'list' with m_gamedef==0"<<std::endl;
 304                 return;
 305         }
 306
 307         std::vector<std::string> parts = split(element,';');
 308
 309         if (((parts.size() == 4) || (parts.size() == 5)) ||
 310                 ((parts.size() > 5) && (m_formspec_version > FORMSPEC_API_VERSION)))
 311         {
 312                 std::string location = parts[0];
 313                 std::string listname = parts[1];
 314                 std::vector<std::string> v_pos  = split(parts[2],',');
 315                 std::vector<std::string> v_geom = split(parts[3],',');
 316                 std::string startindex = "";
 317                 if (parts.size() == 5)
 318                         startindex = parts[4];
 319
 320                 MY_CHECKPOS("list",2);
 321                 MY_CHECKGEOM("list",3);
 322
 323                 InventoryLocation loc;
 324
 325                 if(location == "context" || location == "current_name")
 326                         loc = m_current_inventory_location;
 327                 else
 328                         loc.deSerialize(location);
 329
 330                 v2s32 pos = padding + AbsoluteRect.UpperLeftCorner;
 331                 pos.X += stof(v_pos[0]) * (float)spacing.X;
 332                 pos.Y += stof(v_pos[1]) * (float)spacing.Y;
 333
 334                 v2s32 geom;
 335                 geom.X = stoi(v_geom[0]);
 336                 geom.Y = stoi(v_geom[1]);
 337
 338                 s32 start_i = 0;
 339                 if(startindex != "")
 340                         start_i = stoi(startindex);
 341
 342                 if (geom.X < 0 || geom.Y < 0 || start_i < 0) {
 343                         errorstream<< "Invalid list element: '" << element << "'"  << std::endl;
 344                         return;
 345                 }
 346
 347                 if(!data->explicit_size)
 348                         errorstream<<"WARNING: invalid use of list without a size[] element"<<std::endl;
 349                 m_inventorylists.push_back(ListDrawSpec(loc, listname, pos, geom, start_i));
 350                 return;
 351         }
 352         errorstream<< "Invalid list element(" << parts.size() << "): '" << element << "'"  << std::endl;
 353 }
 354
 355 void GUIFormSpecMenu::parseListRing(parserData* data, std::string element)
 356 {
 357         if (m_gamedef == 0) {
 358                 errorstream << "WARNING: invalid use of 'listring' with m_gamedef==0" << std::endl;
 359                 return;
 360         }
 361
 362         std::vector<std::string> parts = split(element, ';');
 363
 364         if (parts.size() == 2) {
 365                 std::string location = parts[0];
 366                 std::string listname = parts[1];
 367
 368                 InventoryLocation loc;
 369
 370                 if (location == "context" || location == "current_name")
 371                         loc = m_current_inventory_location;
 372                 else
 373                         loc.deSerialize(location);
 374
 375                 m_inventory_rings.push_back(ListRingSpec(loc, listname));
 376                 return;
 377         } else if ((element == "") && (m_inventorylists.size() > 1)) {
 378                 size_t siz = m_inventorylists.size();
 379                 // insert the last two inv list elements into the list ring
 380                 const ListDrawSpec &spa = m_inventorylists[siz - 2];
 381                 const ListDrawSpec &spb = m_inventorylists[siz - 1];
 382                 m_inventory_rings.push_back(ListRingSpec(spa.inventoryloc, spa.listname));
 383                 m_inventory_rings.push_back(ListRingSpec(spb.inventoryloc, spb.listname));
 384                 return;
 385         }
 386         errorstream<< "Invalid list ring element(" << parts.size() << ", "
 387                 << m_inventorylists.size() << "): '" << element << "'"  << std::endl;
 388 }
 389
 390 void GUIFormSpecMenu::parseCheckbox(parserData* data,std::string element)
 391 {
 392         std::vector<std::string> parts = split(element,';');
 393
 394         if (((parts.size() >= 3) && (parts.size() <= 4)) ||
 395                 ((parts.size() > 4) && (m_formspec_version > FORMSPEC_API_VERSION)))
 396         {
 397                 std::vector<std::string> v_pos = split(parts[0],',');
 398                 std::string name = parts[1];
 399                 std::string label = parts[2];
 400                 std::string selected = "";
 401
 402                 if (parts.size() >= 4)
 403                         selected = parts[3];
 404
 405                 MY_CHECKPOS("checkbox",0);
 406
 407                 v2s32 pos = padding;
 408                 pos.X += stof(v_pos[0]) * (float) spacing.X;
 409                 pos.Y += stof(v_pos[1]) * (float) spacing.Y;
 410
 411                 bool fselected = false;
 412
 413                 if (selected == "true")
 414                         fselected = true;
 415
 416                 std::wstring wlabel = utf8_to_wide(label);
 417
 418                 core::rect<s32> rect = core::rect<s32>(
 419                                 pos.X, pos.Y + ((imgsize.Y/2) - m_btn_height),
 420                                 pos.X + m_font->getDimension(wlabel.c_str()).Width + 25, // text size + size of checkbox
 421                                 pos.Y + ((imgsize.Y/2) + m_btn_height));
 422
 423                 FieldSpec spec(
 424                                 name,
 425                                 wlabel, //Needed for displaying text on MSVC
 426                                 wlabel,
 427                                 258+m_fields.size()
 428                         );
 429
 430                 spec.ftype = f_CheckBox;
 431
 432                 gui::IGUICheckBox* e = Environment->addCheckBox(fselected, rect, this,
 433                                         spec.fid, spec.flabel.c_str());
 434
 435                 if (spec.fname == data->focused_fieldname) {
 436                         Environment->setFocus(e);
 437                 }
 438
 439                 m_checkboxes.push_back(std::pair<FieldSpec,gui::IGUICheckBox*>(spec,e));
 440                 m_fields.push_back(spec);
 441                 return;
 442         }
 443         errorstream<< "Invalid checkbox element(" << parts.size() << "): '" << element << "'"  << std::endl;
 444 }
 445
 446 void GUIFormSpecMenu::parseScrollBar(parserData* data, std::string element)
 447 {
 448         std::vector<std::string> parts = split(element,';');
 449
 450         if (parts.size() >= 5) {
 451                 std::vector<std::string> v_pos = split(parts[0],',');
 452                 std::vector<std::string> v_dim = split(parts[1],',');
 453                 std::string name = parts[2];
 454                 std::string value = parts[4];
 455
 456                 MY_CHECKPOS("scrollbar",0);
 457
 458                 v2s32 pos = padding;
 459                 pos.X += stof(v_pos[0]) * (float) spacing.X;
 460                 pos.Y += stof(v_pos[1]) * (float) spacing.Y;
 461
 462                 if (v_dim.size() != 2) {
 463                         errorstream<< "Invalid size for element " << "scrollbar"
 464                                 << "specified: \"" << parts[1] << "\"" << std::endl;
 465                         return;
 466                 }
 467
 468                 v2s32 dim;
 469                 dim.X = stof(v_dim[0]) * (float) spacing.X;
 470                 dim.Y = stof(v_dim[1]) * (float) spacing.Y;
 471
 472                 core::rect<s32> rect =
 473                                 core::rect<s32>(pos.X, pos.Y, pos.X + dim.X, pos.Y + dim.Y);
 474
 475                 FieldSpec spec(
 476                                 name,
 477                                 L"",
 478                                 L"",
 479                                 258+m_fields.size()
 480                         );
 481
 482                 bool is_horizontal = true;
 483
 484                 if (parts[2] == "vertical")
 485                         is_horizontal = false;
 486
 487                 spec.ftype = f_ScrollBar;
 488                 spec.send  = true;
 489                 gui::IGUIScrollBar* e =
 490                                 Environment->addScrollBar(is_horizontal,rect,this,spec.fid);
 491
 492                 e->setMax(1000);
 493                 e->setMin(0);
 494                 e->setPos(stoi(parts[4]));
 495                 e->setSmallStep(10);
 496                 e->setLargeStep(100);
 497
 498                 m_scrollbars.push_back(std::pair<FieldSpec,gui::IGUIScrollBar*>(spec,e));
 499                 m_fields.push_back(spec);
 500                 return;
 501         }
 502         errorstream<< "Invalid scrollbar element(" << parts.size() << "): '" << element << "'"  << std::endl;
 503 }
 504
 505 void GUIFormSpecMenu::parseImage(parserData* data,std::string element)
 506 {
 507         std::vector<std::string> parts = split(element,';');
 508
 509         if ((parts.size() == 3) ||
 510                 ((parts.size() > 3) && (m_formspec_version > FORMSPEC_API_VERSION)))
 511         {
 512                 std::vector<std::string> v_pos = split(parts[0],',');
 513                 std::vector<std::string> v_geom = split(parts[1],',');
 514                 std::string name = unescape_string(parts[2]);
 515
 516                 MY_CHECKPOS("image",0);
 517                 MY_CHECKGEOM("image",1);
 518
 519                 v2s32 pos = padding + AbsoluteRect.UpperLeftCorner;
 520                 pos.X += stof(v_pos[0]) * (float) spacing.X;
 521                 pos.Y += stof(v_pos[1]) * (float) spacing.Y;
 522
 523                 v2s32 geom;
 524                 geom.X = stof(v_geom[0]) * (float)imgsize.X;
 525                 geom.Y = stof(v_geom[1]) * (float)imgsize.Y;
 526
 527                 if(!data->explicit_size)
 528                         errorstream<<"WARNING: invalid use of image without a size[] element"<<std::endl;
 529                 m_images.push_back(ImageDrawSpec(name, pos, geom));
 530                 return;
 531         }
 532
 533         if (parts.size() == 2) {
 534                 std::vector<std::string> v_pos = split(parts[0],',');
 535                 std::string name = unescape_string(parts[1]);
 536
 537                 MY_CHECKPOS("image",0);
 538
 539                 v2s32 pos = padding + AbsoluteRect.UpperLeftCorner;
 540                 pos.X += stof(v_pos[0]) * (float) spacing.X;
 541                 pos.Y += stof(v_pos[1]) * (float) spacing.Y;
 542
 543                 if(!data->explicit_size)
 544                         errorstream<<"WARNING: invalid use of image without a size[] element"<<std::endl;
 545                 m_images.push_back(ImageDrawSpec(name, pos));
 546                 return;
 547         }
 548         errorstream<< "Invalid image element(" << parts.size() << "): '" << element << "'"  << std::endl;
 549 }
 550
 551 void GUIFormSpecMenu::parseItemImage(parserData* data,std::string element)
 552 {
 553         std::vector<std::string> parts = split(element,';');
 554
 555         if ((parts.size() == 3) ||
 556                 ((parts.size() > 3) && (m_formspec_version > FORMSPEC_API_VERSION)))
 557         {
 558                 std::vector<std::string> v_pos = split(parts[0],',');
 559                 std::vector<std::string> v_geom = split(parts[1],',');
 560                 std::string name = parts[2];
 561
 562                 MY_CHECKPOS("itemimage",0);
 563                 MY_CHECKGEOM("itemimage",1);
 564
 565                 v2s32 pos = padding + AbsoluteRect.UpperLeftCorner;
 566                 pos.X += stof(v_pos[0]) * (float) spacing.X;
 567                 pos.Y += stof(v_pos[1]) * (float) spacing.Y;
 568
 569                 v2s32 geom;
 570                 geom.X = stof(v_geom[0]) * (float)imgsize.X;
 571                 geom.Y = stof(v_geom[1]) * (float)imgsize.Y;
 572
 573                 if(!data->explicit_size)
 574                         errorstream<<"WARNING: invalid use of item_image without a size[] element"<<std::endl;
 575                 m_itemimages.push_back(ImageDrawSpec(name, pos, geom));
 576                 return;
 577         }
 578         errorstream<< "Invalid ItemImage element(" << parts.size() << "): '" << element << "'"  << std::endl;
 579 }
 580
 581 void GUIFormSpecMenu::parseButton(parserData* data,std::string element,
 582                 std::string type)
 583 {
 584         std::vector<std::string> parts = split(element,';');
 585
 586         if ((parts.size() == 4) ||
 587                 ((parts.size() > 4) && (m_formspec_version > FORMSPEC_API_VERSION)))
 588         {
 589                 std::vector<std::string> v_pos = split(parts[0],',');
 590                 std::vector<std::string> v_geom = split(parts[1],',');
 591                 std::string name = parts[2];
 592                 std::string label = parts[3];
 593
 594                 MY_CHECKPOS("button",0);
 595                 MY_CHECKGEOM("button",1);
 596
 597                 v2s32 pos = padding;
 598                 pos.X += stof(v_pos[0]) * (float)spacing.X;
 599                 pos.Y += stof(v_pos[1]) * (float)spacing.Y;
 600
 601                 v2s32 geom;
 602                 geom.X = (stof(v_geom[0]) * (float)spacing.X)-(spacing.X-imgsize.X);
 603                 pos.Y += (stof(v_geom[1]) * (float)imgsize.Y)/2;
 604
 605                 core::rect<s32> rect =
 606                                 core::rect<s32>(pos.X, pos.Y - m_btn_height,
 607                                                 pos.X + geom.X, pos.Y + m_btn_height);
 608
 609                 if(!data->explicit_size)
 610                         errorstream<<"WARNING: invalid use of button without a size[] element"<<std::endl;
 611
 612                 label = unescape_string(label);
 613
 614                 std::wstring wlabel = utf8_to_wide(label);
 615
 616                 FieldSpec spec(
 617                         name,
 618                         wlabel,
 619                         L"",
 620                         258+m_fields.size()
 621                 );
 622                 spec.ftype = f_Button;
 623                 if(type == "button_exit")
 624                         spec.is_exit = true;
 625                 gui::IGUIButton* e = Environment->addButton(rect, this, spec.fid,
 626                                 spec.flabel.c_str());
 627
 628                 if (spec.fname == data->focused_fieldname) {
 629                         Environment->setFocus(e);
 630                 }
 631
 632                 m_fields.push_back(spec);
 633                 return;
 634         }
 635         errorstream<< "Invalid button element(" << parts.size() << "): '" << element << "'"  << std::endl;
 636 }
 637
 638 void GUIFormSpecMenu::parseBackground(parserData* data,std::string element)
 639 {
 640         std::vector<std::string> parts = split(element,';');
 641
 642         if (((parts.size() == 3) || (parts.size() == 4)) ||
 643                 ((parts.size() > 4) && (m_formspec_version > FORMSPEC_API_VERSION)))
 644         {
 645                 std::vector<std::string> v_pos = split(parts[0],',');
 646                 std::vector<std::string> v_geom = split(parts[1],',');
 647                 std::string name = unescape_string(parts[2]);
 648
 649                 MY_CHECKPOS("background",0);
 650                 MY_CHECKGEOM("background",1);
 651
 652                 v2s32 pos = padding + AbsoluteRect.UpperLeftCorner;
 653                 pos.X += stof(v_pos[0]) * (float)spacing.X - ((float)spacing.X-(float)imgsize.X)/2;
 654                 pos.Y += stof(v_pos[1]) * (float)spacing.Y - ((float)spacing.Y-(float)imgsize.Y)/2;
 655
 656                 v2s32 geom;
 657                 geom.X = stof(v_geom[0]) * (float)spacing.X;
 658                 geom.Y = stof(v_geom[1]) * (float)spacing.Y;
 659
 660                 if (parts.size() == 4) {
 661                         m_clipbackground = is_yes(parts[3]);
 662                         if (m_clipbackground) {
 663                                 pos.X = stoi(v_pos[0]); //acts as offset
 664                                 pos.Y = stoi(v_pos[1]); //acts as offset
 665                         }
 666                 }
 667
 668                 if(!data->explicit_size)
 669                         errorstream<<"WARNING: invalid use of background without a size[] element"<<std::endl;
 670                 m_backgrounds.push_back(ImageDrawSpec(name, pos, geom));
 671                 return;
 672         }
 673         errorstream<< "Invalid background element(" << parts.size() << "): '" << element << "'"  << std::endl;
 674 }
 675
 676 void GUIFormSpecMenu::parseTableOptions(parserData* data,std::string element)
 677 {
 678         std::vector<std::string> parts = split(element,';');
 679
 680         data->table_options.clear();
 681         for (size_t i = 0; i < parts.size(); ++i) {
 682                 // Parse table option
 683                 std::string opt = unescape_string(parts[i]);
 684                 data->table_options.push_back(GUITable::splitOption(opt));
 685         }
 686 }
 687
 688 void GUIFormSpecMenu::parseTableColumns(parserData* data,std::string element)
 689 {
 690         std::vector<std::string> parts = split(element,';');
 691
 692         data->table_columns.clear();
 693         for (size_t i = 0; i < parts.size(); ++i) {
 694                 std::vector<std::string> col_parts = split(parts[i],',');
 695                 GUITable::TableColumn column;
 696                 // Parse column type
 697                 if (!col_parts.empty())
 698                         column.type = col_parts[0];
 699                 // Parse column options
 700                 for (size_t j = 1; j < col_parts.size(); ++j) {
 701                         std::string opt = unescape_string(col_parts[j]);
 702                         column.options.push_back(GUITable::splitOption(opt));
 703                 }
 704                 data->table_columns.push_back(column);
 705         }
 706 }
 707
 708 void GUIFormSpecMenu::parseTable(parserData* data,std::string element)
 709 {
 710         std::vector<std::string> parts = split(element,';');
 711
 712         if (((parts.size() == 4) || (parts.size() == 5)) ||
 713                 ((parts.size() > 5) && (m_formspec_version > FORMSPEC_API_VERSION)))
 714         {
 715                 std::vector<std::string> v_pos = split(parts[0],',');
 716                 std::vector<std::string> v_geom = split(parts[1],',');
 717                 std::string name = parts[2];
 718                 std::vector<std::string> items = split(parts[3],',');
 719                 std::string str_initial_selection = "";
 720                 std::string str_transparent = "false";
 721
 722                 if (parts.size() >= 5)
 723                         str_initial_selection = parts[4];
 724
 725                 MY_CHECKPOS("table",0);
 726                 MY_CHECKGEOM("table",1);
 727
 728                 v2s32 pos = padding;
 729                 pos.X += stof(v_pos[0]) * (float)spacing.X;
 730                 pos.Y += stof(v_pos[1]) * (float)spacing.Y;
 731
 732                 v2s32 geom;
 733                 geom.X = stof(v_geom[0]) * (float)spacing.X;
 734                 geom.Y = stof(v_geom[1]) * (float)spacing.Y;
 735
 736
 737                 core::rect<s32> rect = core::rect<s32>(pos.X, pos.Y, pos.X+geom.X, pos.Y+geom.Y);
 738
 739                 FieldSpec spec(
 740                         name,
 741                         L"",
 742                         L"",
 743                         258+m_fields.size()
 744                 );
 745
 746                 spec.ftype = f_Table;
 747
 748                 for (unsigned int i = 0; i < items.size(); ++i) {
 749                         items[i] = unescape_string(items[i]);
 750                 }
 751
 752                 //now really show table
 753                 GUITable *e = new GUITable(Environment, this, spec.fid, rect,
 754                                 m_tsrc);
 755
 756                 if (spec.fname == data->focused_fieldname) {
 757                         Environment->setFocus(e);
 758                 }
 759
 760                 e->setTable(data->table_options, data->table_columns, items);
 761
 762                 if (data->table_dyndata.find(name) != data->table_dyndata.end()) {
 763                         e->setDynamicData(data->table_dyndata[name]);
 764                 }
 765
 766                 if ((str_initial_selection != "") &&
 767                                 (str_initial_selection != "0"))
 768                         e->setSelected(stoi(str_initial_selection.c_str()));
 769
 770                 m_tables.push_back(std::pair<FieldSpec,GUITable*>(spec, e));
 771                 m_fields.push_back(spec);
 772                 return;
 773         }
 774         errorstream<< "Invalid table element(" << parts.size() << "): '" << element << "'"  << std::endl;
 775 }
 776
 777 void GUIFormSpecMenu::parseTextList(parserData* data,std::string element)
 778 {
 779         std::vector<std::string> parts = split(element,';');
 780
 781         if (((parts.size() == 4) || (parts.size() == 5) || (parts.size() == 6)) ||
 782                 ((parts.size() > 6) && (m_formspec_version > FORMSPEC_API_VERSION)))
 783         {
 784                 std::vector<std::string> v_pos = split(parts[0],',');
 785                 std::vector<std::string> v_geom = split(parts[1],',');
 786                 std::string name = parts[2];
 787                 std::vector<std::string> items = split(parts[3],',');
 788                 std::string str_initial_selection = "";
 789                 std::string str_transparent = "false";
 790
 791                 if (parts.size() >= 5)
 792                         str_initial_selection = parts[4];
 793
 794                 if (parts.size() >= 6)
 795                         str_transparent = parts[5];
 796
 797                 MY_CHECKPOS("textlist",0);
 798                 MY_CHECKGEOM("textlist",1);
 799
 800                 v2s32 pos = padding;
 801                 pos.X += stof(v_pos[0]) * (float)spacing.X;
 802                 pos.Y += stof(v_pos[1]) * (float)spacing.Y;
 803
 804                 v2s32 geom;
 805                 geom.X = stof(v_geom[0]) * (float)spacing.X;
 806                 geom.Y = stof(v_geom[1]) * (float)spacing.Y;
 807
 808
 809                 core::rect<s32> rect = core::rect<s32>(pos.X, pos.Y, pos.X+geom.X, pos.Y+geom.Y);
 810
 811                 FieldSpec spec(
 812                         name,
 813                         L"",
 814                         L"",
 815                         258+m_fields.size()
 816                 );
 817
 818                 spec.ftype = f_Table;
 819
 820                 for (unsigned int i = 0; i < items.size(); ++i) {
 821                         items[i] = unescape_string(items[i]);
 822                 }
 823
 824                 //now really show list
 825                 GUITable *e = new GUITable(Environment, this, spec.fid, rect,
 826                                 m_tsrc);
 827
 828                 if (spec.fname == data->focused_fieldname) {
 829                         Environment->setFocus(e);
 830                 }
 831
 832                 e->setTextList(items, is_yes(str_transparent));
 833
 834                 if (data->table_dyndata.find(name) != data->table_dyndata.end()) {
 835                         e->setDynamicData(data->table_dyndata[name]);
 836                 }
 837
 838                 if ((str_initial_selection != "") &&
 839                                 (str_initial_selection != "0"))
 840                         e->setSelected(stoi(str_initial_selection.c_str()));
 841
 842                 m_tables.push_back(std::pair<FieldSpec,GUITable*>(spec, e));
 843                 m_fields.push_back(spec);
 844                 return;
 845         }
 846         errorstream<< "Invalid textlist element(" << parts.size() << "): '" << element << "'"  << std::endl;
 847 }
 848
 849
 850 void GUIFormSpecMenu::parseDropDown(parserData* data,std::string element)
 851 {
 852         std::vector<std::string> parts = split(element,';');
 853
 854         if ((parts.size() == 5) ||
 855                 ((parts.size() > 5) && (m_formspec_version > FORMSPEC_API_VERSION)))
 856         {
 857                 std::vector<std::string> v_pos = split(parts[0],',');
 858                 std::string name = parts[2];
 859                 std::vector<std::string> items = split(parts[3],',');
 860                 std::string str_initial_selection = "";
 861                 str_initial_selection = parts[4];
 862
 863                 MY_CHECKPOS("dropdown",0);
 864
 865                 v2s32 pos = padding;
 866                 pos.X += stof(v_pos[0]) * (float)spacing.X;
 867                 pos.Y += stof(v_pos[1]) * (float)spacing.Y;
 868
 869                 s32 width = stof(parts[1]) * (float)spacing.Y;
 870
 871                 core::rect<s32> rect = core::rect<s32>(pos.X, pos.Y,
 872                                 pos.X + width, pos.Y + (m_btn_height * 2));
 873
 874                 FieldSpec spec(
 875                         name,
 876                         L"",
 877                         L"",
 878                         258+m_fields.size()
 879                 );
 880
 881                 spec.ftype = f_DropDown;
 882                 spec.send = true;
 883
 884                 //now really show list
 885                 gui::IGUIComboBox *e = Environment->addComboBox(rect, this,spec.fid);
 886
 887                 if (spec.fname == data->focused_fieldname) {
 888                         Environment->setFocus(e);
 889                 }
 890
 891                 for (unsigned int i=0; i < items.size(); i++) {
 892                         e->addItem(utf8_to_wide(items[i]).c_str());
 893                 }
 894
 895                 if (str_initial_selection != "")
 896                         e->setSelected(stoi(str_initial_selection.c_str())-1);
 897
 898                 m_fields.push_back(spec);
 899                 return;
 900         }
 901         errorstream << "Invalid dropdown element(" << parts.size() << "): '"
 902                                 << element << "'"  << std::endl;
 903 }
 904
 905 void GUIFormSpecMenu::parsePwdField(parserData* data,std::string element)
 906 {
 907         std::vector<std::string> parts = split(element,';');
 908
 909         if ((parts.size() == 4) ||
 910                 ((parts.size() > 4) && (m_formspec_version > FORMSPEC_API_VERSION)))
 911         {
 912                 std::vector<std::string> v_pos = split(parts[0],',');
 913                 std::vector<std::string> v_geom = split(parts[1],',');
 914                 std::string name = parts[2];
 915                 std::string label = parts[3];
 916
 917                 MY_CHECKPOS("pwdfield",0);
 918                 MY_CHECKGEOM("pwdfield",1);
 919
 920                 v2s32 pos;
 921                 pos.X += stof(v_pos[0]) * (float)spacing.X;
 922                 pos.Y += stof(v_pos[1]) * (float)spacing.Y;
 923
 924                 v2s32 geom;
 925                 geom.X = (stof(v_geom[0]) * (float)spacing.X)-(spacing.X-imgsize.X);
 926
 927                 pos.Y += (stof(v_geom[1]) * (float)imgsize.Y)/2;
 928                 pos.Y -= m_btn_height;
 929                 geom.Y = m_btn_height*2;
 930
 931                 core::rect<s32> rect = core::rect<s32>(pos.X, pos.Y, pos.X+geom.X, pos.Y+geom.Y);
 932
 933                 label = unescape_string(label);
 934
 935                 std::wstring wlabel = utf8_to_wide(label);
 936
 937                 FieldSpec spec(
 938                         name,
 939                         wlabel,
 940                         L"",
 941                         258+m_fields.size()
 942                         );
 943
 944                 spec.send = true;
 945                 gui::IGUIEditBox * e = Environment->addEditBox(0, rect, true, this, spec.fid);
 946
 947                 if (spec.fname == data->focused_fieldname) {
 948                         Environment->setFocus(e);
 949                 }
 950
 951                 if (label.length() >= 1)
 952                 {
 953                         int font_height = g_fontengine->getTextHeight();
 954                         rect.UpperLeftCorner.Y -= font_height;
 955                         rect.LowerRightCorner.Y = rect.UpperLeftCorner.Y + font_height;
 956                         Environment->addStaticText(spec.flabel.c_str(), rect, false, true, this, 0);
 957                 }
 958
 959                 e->setPasswordBox(true,L'*');
 960
 961                 irr::SEvent evt;
 962                 evt.EventType            = EET_KEY_INPUT_EVENT;
 963                 evt.KeyInput.Key         = KEY_END;
 964                 evt.KeyInput.Char        = 0;
 965                 evt.KeyInput.Control     = 0;
 966                 evt.KeyInput.Shift       = 0;
 967                 evt.KeyInput.PressedDown = true;
 968                 e->OnEvent(evt);
 969                 m_fields.push_back(spec);
 970                 return;
 971         }
 972         errorstream<< "Invalid pwdfield element(" << parts.size() << "): '" << element << "'"  << std::endl;
 973 }
 974
 975 void GUIFormSpecMenu::parseSimpleField(parserData* data,
 976                 std::vector<std::string> &parts)
 977 {
 978         std::string name = parts[0];
 979         std::string label = parts[1];
 980         std::string default_val = parts[2];
 981
 982         core::rect<s32> rect;
 983
 984         if(data->explicit_size)
 985                 errorstream<<"WARNING: invalid use of unpositioned \"field\" in inventory"<<std::endl;
 986
 987         v2s32 pos = padding + AbsoluteRect.UpperLeftCorner;
 988         pos.Y = ((m_fields.size()+2)*60);
 989         v2s32 size = DesiredRect.getSize();
 990
 991         rect = core::rect<s32>(size.X / 2 - 150, pos.Y,
 992                         (size.X / 2 - 150) + 300, pos.Y + (m_btn_height*2));
 993
 994
 995         if(m_form_src)
 996                 default_val = m_form_src->resolveText(default_val);
 997
 998         default_val = unescape_string(default_val);
 999         label = unescape_string(label);
1000
1001         std::wstring wlabel = utf8_to_wide(label);
1002
1003         FieldSpec spec(
1004                 name,
1005                 wlabel,
1006                 utf8_to_wide(default_val),
1007                 258+m_fields.size()
1008         );
1009
1010         if (name == "")
1011         {
1012                 // spec field id to 0, this stops submit searching for a value that isn't there
1013                 Environment->addStaticText(spec.flabel.c_str(), rect, false, true, this, spec.fid);
1014         }
1015         else
1016         {
1017                 spec.send = true;
1018                 gui::IGUIElement *e;
1019 #if USE_FREETYPE && IRRLICHT_VERSION_MAJOR == 1 && IRRLICHT_VERSION_MINOR < 9
1020                 if (g_settings->getBool("freetype")) {
1021                         e = (gui::IGUIElement *) new gui::intlGUIEditBox(spec.fdefault.c_str(),
1022                                 true, Environment, this, spec.fid, rect);
1023                         e->drop();
1024                 } else {
1025 #else
1026                 {
1027 #endif
1028                         e = Environment->addEditBox(spec.fdefault.c_str(), rect, true, this, spec.fid);
1029                 }
1030                 if (spec.fname == data->focused_fieldname) {
1031                         Environment->setFocus(e);
1032                 }
1033
1034                 irr::SEvent evt;
1035                 evt.EventType            = EET_KEY_INPUT_EVENT;
1036                 evt.KeyInput.Key         = KEY_END;
1037                 evt.KeyInput.Char        = 0;
1038                 evt.KeyInput.Control     = 0;
1039                 evt.KeyInput.Shift       = 0;
1040                 evt.KeyInput.PressedDown = true;
1041                 e->OnEvent(evt);
1042
1043                 if (label.length() >= 1)
1044                 {
1045                         int font_height = g_fontengine->getTextHeight();
1046                         rect.UpperLeftCorner.Y -= font_height;
1047                         rect.LowerRightCorner.Y = rect.UpperLeftCorner.Y + font_height;
1048                         Environment->addStaticText(spec.flabel.c_str(), rect, false, true, this, 0);
1049                 }
1050         }
1051
1052         m_fields.push_back(spec);
1053 }
1054
1055 void GUIFormSpecMenu::parseTextArea(parserData* data,
1056                 std::vector<std::string>& parts,std::string type)
1057 {
1058
1059         std::vector<std::string> v_pos = split(parts[0],',');
1060         std::vector<std::string> v_geom = split(parts[1],',');
1061         std::string name = parts[2];
1062         std::string label = parts[3];
1063         std::string default_val = parts[4];
1064
1065         MY_CHECKPOS(type,0);
1066         MY_CHECKGEOM(type,1);
1067
1068         v2s32 pos;
1069         pos.X = stof(v_pos[0]) * (float) spacing.X;
1070         pos.Y = stof(v_pos[1]) * (float) spacing.Y;
1071
1072         v2s32 geom;
1073
1074         geom.X = (stof(v_geom[0]) * (float)spacing.X)-(spacing.X-imgsize.X);
1075
1076         if (type == "textarea")
1077         {
1078                 geom.Y = (stof(v_geom[1]) * (float)imgsize.Y) - (spacing.Y-imgsize.Y);
1079                 pos.Y += m_btn_height;
1080         }
1081         else
1082         {
1083                 pos.Y += (stof(v_geom[1]) * (float)imgsize.Y)/2;
1084                 pos.Y -= m_btn_height;
1085                 geom.Y = m_btn_height*2;
1086         }
1087
1088         core::rect<s32> rect = core::rect<s32>(pos.X, pos.Y, pos.X+geom.X, pos.Y+geom.Y);
1089
1090         if(!data->explicit_size)
1091                 errorstream<<"WARNING: invalid use of positioned "<<type<<" without a size[] element"<<std::endl;
1092
1093         if(m_form_src)
1094                 default_val = m_form_src->resolveText(default_val);
1095
1096
1097         default_val = unescape_string(default_val);
1098         label = unescape_string(label);
1099
1100         std::wstring wlabel = utf8_to_wide(label);
1101
1102         FieldSpec spec(
1103                 name,
1104                 wlabel,
1105                 utf8_to_wide(default_val),
1106                 258+m_fields.size()
1107         );
1108
1109         if (name == "")
1110         {
1111                 // spec field id to 0, this stops submit searching for a value that isn't there
1112                 Environment->addStaticText(spec.flabel.c_str(), rect, false, true, this, spec.fid);
1113         }
1114         else
1115         {
1116                 spec.send = true;
1117
1118                 gui::IGUIEditBox *e;
1119 #if USE_FREETYPE && IRRLICHT_VERSION_MAJOR == 1 && IRRLICHT_VERSION_MINOR < 9
1120                 if (g_settings->getBool("freetype")) {
1121                         e = (gui::IGUIEditBox *) new gui::intlGUIEditBox(spec.fdefault.c_str(),
1122                                 true, Environment, this, spec.fid, rect);
1123                         e->drop();
1124                 } else {
1125 #else
1126                 {
1127 #endif
1128                         e = Environment->addEditBox(spec.fdefault.c_str(), rect, true, this, spec.fid);
1129                 }
1130
1131                 if (spec.fname == data->focused_fieldname) {
1132                         Environment->setFocus(e);
1133                 }
1134
1135                 if (type == "textarea")
1136                 {
1137                         e->setMultiLine(true);
1138                         e->setWordWrap(true);
1139                         e->setTextAlignment(gui::EGUIA_UPPERLEFT, gui::EGUIA_UPPERLEFT);
1140                 } else {
1141                         irr::SEvent evt;
1142                         evt.EventType            = EET_KEY_INPUT_EVENT;
1143                         evt.KeyInput.Key         = KEY_END;
1144                         evt.KeyInput.Char        = 0;
1145                         evt.KeyInput.Control     = 0;
1146                         evt.KeyInput.Shift       = 0;
1147                         evt.KeyInput.PressedDown = true;
1148                         e->OnEvent(evt);
1149                 }
1150
1151                 if (label.length() >= 1)
1152                 {
1153                         int font_height = g_fontengine->getTextHeight();
1154                         rect.UpperLeftCorner.Y -= font_height;
1155                         rect.LowerRightCorner.Y = rect.UpperLeftCorner.Y + font_height;
1156                         Environment->addStaticText(spec.flabel.c_str(), rect, false, true, this, 0);
1157                 }
1158         }
1159         m_fields.push_back(spec);
1160 }
1161
1162 void GUIFormSpecMenu::parseField(parserData* data,std::string element,
1163                 std::string type)
1164 {
1165         std::vector<std::string> parts = split(element,';');
1166
1167         if (parts.size() == 3 || parts.size() == 4) {
1168                 parseSimpleField(data,parts);
1169                 return;
1170         }
1171
1172         if ((parts.size() == 5) ||
1173                 ((parts.size() > 5) && (m_formspec_version > FORMSPEC_API_VERSION)))
1174         {
1175                 parseTextArea(data,parts,type);
1176                 return;
1177         }
1178         errorstream<< "Invalid field element(" << parts.size() << "): '" << element << "'"  << std::endl;
1179 }
1180
1181 void GUIFormSpecMenu::parseLabel(parserData* data,std::string element)
1182 {
1183         std::vector<std::string> parts = split(element,';');
1184
1185         if ((parts.size() == 2) ||
1186                 ((parts.size() > 2) && (m_formspec_version > FORMSPEC_API_VERSION)))
1187         {
1188                 std::vector<std::string> v_pos = split(parts[0],',');
1189                 std::string text = parts[1];
1190
1191                 MY_CHECKPOS("label",0);
1192
1193                 v2s32 pos = padding;
1194                 pos.X += stof(v_pos[0]) * (float)spacing.X;
1195                 pos.Y += (stof(v_pos[1]) + 7.0/30.0) * (float)spacing.Y;
1196
1197                 if(!data->explicit_size)
1198                         errorstream<<"WARNING: invalid use of label without a size[] element"<<std::endl;
1199
1200                 text = unescape_string(text);
1201                 std::vector<std::string> lines = split(text, '\n');
1202
1203                 for (unsigned int i = 0; i != lines.size(); i++) {
1204                         // Lines are spaced at the nominal distance of
1205                         // 2/5 inventory slot, even if the font doesn't
1206                         // quite match that.  This provides consistent
1207                         // form layout, at the expense of sometimes
1208                         // having sub-optimal spacing for the font.
1209                         // We multiply by 2 and then divide by 5, rather
1210                         // than multiply by 0.4, to get exact results
1211                         // in the integer cases: 0.4 is not exactly
1212                         // representable in binary floating point.
1213                         s32 posy = pos.Y + ((float)i) * spacing.Y * 2.0 / 5.0;
1214                         std::wstring wlabel = utf8_to_wide(lines[i]);
1215                         core::rect<s32> rect = core::rect<s32>(
1216                                 pos.X, posy - m_btn_height,
1217                                 pos.X + m_font->getDimension(wlabel.c_str()).Width,
1218                                 posy + m_btn_height);
1219                         FieldSpec spec(
1220                                 "",
1221                                 wlabel,
1222                                 L"",
1223                                 258+m_fields.size()
1224                         );
1225                         gui::IGUIStaticText *e =
1226                                 Environment->addStaticText(spec.flabel.c_str(),
1227                                         rect, false, false, this, spec.fid);
1228                         e->setTextAlignment(gui::EGUIA_UPPERLEFT,
1229                                                 gui::EGUIA_CENTER);
1230                         m_fields.push_back(spec);
1231                 }
1232
1233                 return;
1234         }
1235         errorstream<< "Invalid label element(" << parts.size() << "): '" << element << "'"  << std::endl;
1236 }
1237
1238 void GUIFormSpecMenu::parseVertLabel(parserData* data,std::string element)
1239 {
1240         std::vector<std::string> parts = split(element,';');
1241
1242         if ((parts.size() == 2) ||
1243                 ((parts.size() > 2) && (m_formspec_version > FORMSPEC_API_VERSION)))
1244         {
1245                 std::vector<std::string> v_pos = split(parts[0],',');
1246                 std::wstring text = utf8_to_wide(unescape_string(parts[1]));
1247
1248                 MY_CHECKPOS("vertlabel",1);
1249
1250                 v2s32 pos = padding;
1251                 pos.X += stof(v_pos[0]) * (float)spacing.X;
1252                 pos.Y += stof(v_pos[1]) * (float)spacing.Y;
1253
1254                 core::rect<s32> rect = core::rect<s32>(
1255                                 pos.X, pos.Y+((imgsize.Y/2)- m_btn_height),
1256                                 pos.X+15, pos.Y +
1257                                         font_line_height(m_font)
1258                                         * (text.length()+1)
1259                                         +((imgsize.Y/2)- m_btn_height));
1260                 //actually text.length() would be correct but adding +1 avoids to break all mods
1261
1262                 if(!data->explicit_size)
1263                         errorstream<<"WARNING: invalid use of label without a size[] element"<<std::endl;
1264
1265                 std::wstring label = L"";
1266
1267                 for (unsigned int i=0; i < text.length(); i++) {
1268                         label += text[i];
1269                         label += L"\n";
1270                 }
1271
1272                 FieldSpec spec(
1273                         "",
1274                         label,
1275                         L"",
1276                         258+m_fields.size()
1277                 );
1278                 gui::IGUIStaticText *t =
1279                                 Environment->addStaticText(spec.flabel.c_str(), rect, false, false, this, spec.fid);
1280                 t->setTextAlignment(gui::EGUIA_CENTER, gui::EGUIA_CENTER);
1281                 m_fields.push_back(spec);
1282                 return;
1283         }
1284         errorstream<< "Invalid vertlabel element(" << parts.size() << "): '" << element << "'"  << std::endl;
1285 }
1286
1287 void GUIFormSpecMenu::parseImageButton(parserData* data,std::string element,
1288                 std::string type)
1289 {
1290         std::vector<std::string> parts = split(element,';');
1291
1292         if ((((parts.size() >= 5) && (parts.size() <= 8)) && (parts.size() != 6)) ||
1293                 ((parts.size() > 8) && (m_formspec_version > FORMSPEC_API_VERSION)))
1294         {
1295                 std::vector<std::string> v_pos = split(parts[0],',');
1296                 std::vector<std::string> v_geom = split(parts[1],',');
1297                 std::string image_name = parts[2];
1298                 std::string name = parts[3];
1299                 std::string label = parts[4];
1300
1301                 MY_CHECKPOS("imagebutton",0);
1302                 MY_CHECKGEOM("imagebutton",1);
1303
1304                 v2s32 pos = padding;
1305                 pos.X += stof(v_pos[0]) * (float)spacing.X;
1306                 pos.Y += stof(v_pos[1]) * (float)spacing.Y;
1307                 v2s32 geom;
1308                 geom.X = (stof(v_geom[0]) * (float)spacing.X)-(spacing.X-imgsize.X);
1309                 geom.Y = (stof(v_geom[1]) * (float)spacing.Y)-(spacing.Y-imgsize.Y);
1310
1311                 bool noclip     = false;
1312                 bool drawborder = true;
1313                 std::string pressed_image_name = "";
1314
1315                 if (parts.size() >= 7) {
1316                         if (parts[5] == "true")
1317                                 noclip = true;
1318                         if (parts[6] == "false")
1319                                 drawborder = false;
1320                 }
1321
1322                 if (parts.size() >= 8) {
1323                         pressed_image_name = parts[7];
1324                 }
1325
1326                 core::rect<s32> rect = core::rect<s32>(pos.X, pos.Y, pos.X+geom.X, pos.Y+geom.Y);
1327
1328                 if(!data->explicit_size)
1329                         errorstream<<"WARNING: invalid use of image_button without a size[] element"<<std::endl;
1330
1331                 image_name = unescape_string(image_name);
1332                 pressed_image_name = unescape_string(pressed_image_name);
1333                 label = unescape_string(label);
1334
1335                 std::wstring wlabel = utf8_to_wide(label);
1336
1337                 FieldSpec spec(
1338                         name,
1339                         wlabel,
1340                         utf8_to_wide(image_name),
1341                         258+m_fields.size()
1342                 );
1343                 spec.ftype = f_Button;
1344                 if(type == "image_button_exit")
1345                         spec.is_exit = true;
1346
1347                 video::ITexture *texture = 0;
1348                 video::ITexture *pressed_texture = 0;
1349                 texture = m_tsrc->getTexture(image_name);
1350                 if (pressed_image_name != "")
1351                         pressed_texture = m_tsrc->getTexture(pressed_image_name);
1352                 else
1353                         pressed_texture = texture;
1354
1355                 gui::IGUIButton *e = Environment->addButton(rect, this, spec.fid, spec.flabel.c_str());
1356
1357                 if (spec.fname == data->focused_fieldname) {
1358                         Environment->setFocus(e);
1359                 }
1360
1361                 e->setUseAlphaChannel(true);
1362                 e->setImage(guiScalingImageButton(
1363                         Environment->getVideoDriver(), texture, geom.X, geom.Y));
1364                 e->setPressedImage(guiScalingImageButton(
1365                         Environment->getVideoDriver(), pressed_texture, geom.X, geom.Y));
1366                 e->setScaleImage(true);
1367                 e->setNotClipped(noclip);
1368                 e->setDrawBorder(drawborder);
1369
1370                 m_fields.push_back(spec);
1371                 return;
1372         }
1373
1374         errorstream<< "Invalid imagebutton element(" << parts.size() << "): '" << element << "'"  << std::endl;
1375 }
1376
1377 void GUIFormSpecMenu::parseTabHeader(parserData* data,std::string element)
1378 {
1379         std::vector<std::string> parts = split(element,';');
1380
1381         if (((parts.size() == 4) || (parts.size() == 6)) ||
1382                 ((parts.size() > 6) && (m_formspec_version > FORMSPEC_API_VERSION)))
1383         {
1384                 std::vector<std::string> v_pos = split(parts[0],',');
1385                 std::string name = parts[1];
1386                 std::vector<std::string> buttons = split(parts[2],',');
1387                 std::string str_index = parts[3];
1388                 bool show_background = true;
1389                 bool show_border = true;
1390                 int tab_index = stoi(str_index) -1;
1391
1392                 MY_CHECKPOS("tabheader",0);
1393
1394                 if (parts.size() == 6) {
1395                         if (parts[4] == "true")
1396                                 show_background = false;
1397                         if (parts[5] == "false")
1398                                 show_border = false;
1399                 }
1400
1401                 FieldSpec spec(
1402                         name,
1403                         L"",
1404                         L"",
1405                         258+m_fields.size()
1406                 );
1407
1408                 spec.ftype = f_TabHeader;
1409
1410                 v2s32 pos(0,0);
1411                 pos.X += stof(v_pos[0]) * (float)spacing.X;
1412                 pos.Y += stof(v_pos[1]) * (float)spacing.Y - m_btn_height * 2;
1413                 v2s32 geom;
1414                 geom.X = DesiredRect.getWidth();
1415                 geom.Y = m_btn_height*2;
1416
1417                 core::rect<s32> rect = core::rect<s32>(pos.X, pos.Y, pos.X+geom.X,
1418                                 pos.Y+geom.Y);
1419
1420                 gui::IGUITabControl *e = Environment->addTabControl(rect, this,
1421                                 show_background, show_border, spec.fid);
1422                 e->setAlignment(irr::gui::EGUIA_UPPERLEFT, irr::gui::EGUIA_UPPERLEFT,
1423                                 irr::gui::EGUIA_UPPERLEFT, irr::gui::EGUIA_LOWERRIGHT);
1424                 e->setTabHeight(m_btn_height*2);
1425
1426                 if (spec.fname == data->focused_fieldname) {
1427                         Environment->setFocus(e);
1428                 }
1429
1430                 e->setNotClipped(true);
1431
1432                 for (unsigned int i = 0; i < buttons.size(); i++) {
1433                         e->addTab(utf8_to_wide(buttons[i]).c_str(), -1);
1434                 }
1435
1436                 if ((tab_index >= 0) &&
1437                                 (buttons.size() < INT_MAX) &&
1438                                 (tab_index < (int) buttons.size()))
1439                         e->setActiveTab(tab_index);
1440
1441                 m_fields.push_back(spec);
1442                 return;
1443         }
1444         errorstream << "Invalid TabHeader element(" << parts.size() << "): '"
1445                         << element << "'"  << std::endl;
1446 }
1447
1448 void GUIFormSpecMenu::parseItemImageButton(parserData* data,std::string element)
1449 {
1450
1451         if (m_gamedef == 0) {
1452                 errorstream <<
1453                                 "WARNING: invalid use of item_image_button with m_gamedef==0"
1454                                 << std::endl;
1455                 return;
1456         }
1457
1458         std::vector<std::string> parts = split(element,';');
1459
1460         if ((parts.size() == 5) ||
1461                 ((parts.size() > 5) && (m_formspec_version > FORMSPEC_API_VERSION)))
1462         {
1463                 std::vector<std::string> v_pos = split(parts[0],',');
1464                 std::vector<std::string> v_geom = split(parts[1],',');
1465                 std::string item_name = parts[2];
1466                 std::string name = parts[3];
1467                 std::string label = parts[4];
1468
1469                 MY_CHECKPOS("itemimagebutton",0);
1470                 MY_CHECKGEOM("itemimagebutton",1);
1471
1472                 v2s32 pos = padding;
1473                 pos.X += stof(v_pos[0]) * (float)spacing.X;
1474                 pos.Y += stof(v_pos[1]) * (float)spacing.Y;
1475                 v2s32 geom;
1476                 geom.X = (stof(v_geom[0]) * (float)spacing.X)-(spacing.X-imgsize.X);
1477                 geom.Y = (stof(v_geom[1]) * (float)spacing.Y)-(spacing.Y-imgsize.Y);
1478
1479                 core::rect<s32> rect = core::rect<s32>(pos.X, pos.Y, pos.X+geom.X, pos.Y+geom.Y);
1480
1481                 if(!data->explicit_size)
1482                         errorstream<<"WARNING: invalid use of item_image_button without a size[] element"<<std::endl;
1483
1484                 IItemDefManager *idef = m_gamedef->idef();
1485                 ItemStack item;
1486                 item.deSerialize(item_name, idef);
1487                 video::ITexture *texture = idef->getInventoryTexture(item.getDefinition(idef).name, m_gamedef);
1488
1489                 m_tooltips[name] =
1490                         TooltipSpec(item.getDefinition(idef).description,
1491                                                 m_default_tooltip_bgcolor,
1492                                                 m_default_tooltip_color);
1493
1494                 label = unescape_string(label);
1495                 FieldSpec spec(
1496                         name,
1497                         utf8_to_wide(label),
1498                         utf8_to_wide(item_name),
1499                         258 + m_fields.size()
1500                 );
1501
1502                 gui::IGUIButton *e = Environment->addButton(rect, this, spec.fid, spec.flabel.c_str());
1503
1504                 if (spec.fname == data->focused_fieldname) {
1505                         Environment->setFocus(e);
1506                 }
1507
1508                 e->setUseAlphaChannel(true);
1509                 e->setImage(guiScalingImageButton(Environment->getVideoDriver(), texture, geom.X, geom.Y));
1510                 e->setPressedImage(guiScalingImageButton(Environment->getVideoDriver(), texture, geom.X, geom.Y));
1511                 e->setScaleImage(true);
1512                 spec.ftype = f_Button;
1513                 rect+=data->basepos-padding;
1514                 spec.rect=rect;
1515                 m_fields.push_back(spec);
1516                 return;
1517         }
1518         errorstream<< "Invalid ItemImagebutton element(" << parts.size() << "): '" << element << "'"  << std::endl;
1519 }
1520
1521 void GUIFormSpecMenu::parseBox(parserData* data,std::string element)
1522 {
1523         std::vector<std::string> parts = split(element,';');
1524
1525         if ((parts.size() == 3) ||
1526                 ((parts.size() > 3) && (m_formspec_version > FORMSPEC_API_VERSION)))
1527         {
1528                 std::vector<std::string> v_pos = split(parts[0],',');
1529                 std::vector<std::string> v_geom = split(parts[1],',');
1530
1531                 MY_CHECKPOS("box",0);
1532                 MY_CHECKGEOM("box",1);
1533
1534                 v2s32 pos = padding + AbsoluteRect.UpperLeftCorner;
1535                 pos.X += stof(v_pos[0]) * (float) spacing.X;
1536                 pos.Y += stof(v_pos[1]) * (float) spacing.Y;
1537
1538                 v2s32 geom;
1539                 geom.X = stof(v_geom[0]) * (float)spacing.X;
1540                 geom.Y = stof(v_geom[1]) * (float)spacing.Y;
1541
1542                 video::SColor tmp_color;
1543
1544                 if (parseColorString(parts[2], tmp_color, false)) {
1545                         BoxDrawSpec spec(pos, geom, tmp_color);
1546
1547                         m_boxes.push_back(spec);
1548                 }
1549                 else {
1550                         errorstream<< "Invalid Box element(" << parts.size() << "): '" << element << "'  INVALID COLOR"  << std::endl;
1551                 }
1552                 return;
1553         }
1554         errorstream<< "Invalid Box element(" << parts.size() << "): '" << element << "'"  << std::endl;
1555 }
1556
1557 void GUIFormSpecMenu::parseBackgroundColor(parserData* data,std::string element)
1558 {
1559         std::vector<std::string> parts = split(element,';');
1560
1561         if (((parts.size() == 1) || (parts.size() == 2)) ||
1562                 ((parts.size() > 2) && (m_formspec_version > FORMSPEC_API_VERSION)))
1563         {
1564                 parseColorString(parts[0],m_bgcolor,false);
1565
1566                 if (parts.size() == 2) {
1567                         std::string fullscreen = parts[1];
1568                         m_bgfullscreen = is_yes(fullscreen);
1569                 }
1570                 return;
1571         }
1572         errorstream<< "Invalid bgcolor element(" << parts.size() << "): '" << element << "'"  << std::endl;
1573 }
1574
1575 void GUIFormSpecMenu::parseListColors(parserData* data,std::string element)
1576 {
1577         std::vector<std::string> parts = split(element,';');
1578
1579         if (((parts.size() == 2) || (parts.size() == 3) || (parts.size() == 5)) ||
1580                 ((parts.size() > 5) && (m_formspec_version > FORMSPEC_API_VERSION)))
1581         {
1582                 parseColorString(parts[0], m_slotbg_n, false);
1583                 parseColorString(parts[1], m_slotbg_h, false);
1584
1585                 if (parts.size() >= 3) {
1586                         if (parseColorString(parts[2], m_slotbordercolor, false)) {
1587                                 m_slotborder = true;
1588                         }
1589                 }
1590                 if (parts.size() == 5) {
1591                         video::SColor tmp_color;
1592
1593                         if (parseColorString(parts[3], tmp_color, false))
1594                                 m_default_tooltip_bgcolor = tmp_color;
1595                         if (parseColorString(parts[4], tmp_color, false))
1596                                 m_default_tooltip_color = tmp_color;
1597                 }
1598                 return;
1599         }
1600         errorstream<< "Invalid listcolors element(" << parts.size() << "): '" << element << "'"  << std::endl;
1601 }
1602
1603 void GUIFormSpecMenu::parseTooltip(parserData* data, std::string element)
1604 {
1605         std::vector<std::string> parts = split(element,';');
1606         if (parts.size() == 2) {
1607                 std::string name = parts[0];
1608                 m_tooltips[name] = TooltipSpec(unescape_string(parts[1]),
1609                         m_default_tooltip_bgcolor, m_default_tooltip_color);
1610                 return;
1611         } else if (parts.size() == 4) {
1612                 std::string name = parts[0];
1613                 video::SColor tmp_color1, tmp_color2;
1614                 if ( parseColorString(parts[2], tmp_color1, false) && parseColorString(parts[3], tmp_color2, false) ) {
1615                         m_tooltips[name] = TooltipSpec(unescape_string(parts[1]),
1616                                 tmp_color1, tmp_color2);
1617                         return;
1618                 }
1619         }
1620         errorstream<< "Invalid tooltip element(" << parts.size() << "): '" << element << "'"  << std::endl;
1621 }
1622
1623 bool GUIFormSpecMenu::parseVersionDirect(std::string data)
1624 {
1625         //some prechecks
1626         if (data == "")
1627                 return false;
1628
1629         std::vector<std::string> parts = split(data,'[');
1630
1631         if (parts.size() < 2) {
1632                 return false;
1633         }
1634
1635         if (parts[0] != "formspec_version") {
1636                 return false;
1637         }
1638
1639         if (is_number(parts[1])) {
1640                 m_formspec_version = mystoi(parts[1]);
1641                 return true;
1642         }
1643
1644         return false;
1645 }
1646
1647 bool GUIFormSpecMenu::parseSizeDirect(parserData* data, std::string element)
1648 {
1649         if (element == "")
1650                 return false;
1651
1652         std::vector<std::string> parts = split(element,'[');
1653
1654         if (parts.size() < 2)
1655                 return false;
1656
1657         std::string type = trim(parts[0]);
1658         std::string description = trim(parts[1]);
1659
1660         if (type != "size" && type != "invsize")
1661                 return false;
1662
1663         if (type == "invsize")
1664                 log_deprecated("Deprecated formspec element \"invsize\" is used");
1665
1666         parseSize(data, description);
1667
1668         return true;
1669 }
1670
1671 void GUIFormSpecMenu::parseElement(parserData* data, std::string element)
1672 {
1673         //some prechecks
1674         if (element == "")
1675                 return;
1676
1677         std::vector<std::string> parts = split(element,'[');
1678
1679         // ugly workaround to keep compatibility
1680         if (parts.size() > 2) {
1681                 if (trim(parts[0]) == "image") {
1682                         for (unsigned int i=2;i< parts.size(); i++) {
1683                                 parts[1] += "[" + parts[i];
1684                         }
1685                 }
1686                 else { return; }
1687         }
1688
1689         if (parts.size() < 2) {
1690                 return;
1691         }
1692
1693         std::string type = trim(parts[0]);
1694         std::string description = trim(parts[1]);
1695
1696         if (type == "list") {
1697                 parseList(data,description);
1698                 return;
1699         }
1700
1701         if (type == "listring") {
1702                 parseListRing(data, description);
1703                 return;
1704         }
1705
1706         if (type == "checkbox") {
1707                 parseCheckbox(data,description);
1708                 return;
1709         }
1710
1711         if (type == "image") {
1712                 parseImage(data,description);
1713                 return;
1714         }
1715
1716         if (type == "item_image") {
1717                 parseItemImage(data,description);
1718                 return;
1719         }
1720
1721         if ((type == "button") || (type == "button_exit")) {
1722                 parseButton(data,description,type);
1723                 return;
1724         }
1725
1726         if (type == "background") {
1727                 parseBackground(data,description);
1728                 return;
1729         }
1730
1731         if (type == "tableoptions"){
1732                 parseTableOptions(data,description);
1733                 return;
1734         }
1735
1736         if (type == "tablecolumns"){
1737                 parseTableColumns(data,description);
1738                 return;
1739         }
1740
1741         if (type == "table"){
1742                 parseTable(data,description);
1743                 return;
1744         }
1745
1746         if (type == "textlist"){
1747                 parseTextList(data,description);
1748                 return;
1749         }
1750
1751         if (type == "dropdown"){
1752                 parseDropDown(data,description);
1753                 return;
1754         }
1755
1756         if (type == "pwdfield") {
1757                 parsePwdField(data,description);
1758                 return;
1759         }
1760
1761         if ((type == "field") || (type == "textarea")){
1762                 parseField(data,description,type);
1763                 return;
1764         }
1765
1766         if (type == "label") {
1767                 parseLabel(data,description);
1768                 return;
1769         }
1770
1771         if (type == "vertlabel") {
1772                 parseVertLabel(data,description);
1773                 return;
1774         }
1775
1776         if (type == "item_image_button") {
1777                 parseItemImageButton(data,description);
1778                 return;
1779         }
1780
1781         if ((type == "image_button") || (type == "image_button_exit")) {
1782                 parseImageButton(data,description,type);
1783                 return;
1784         }
1785
1786         if (type == "tabheader") {
1787                 parseTabHeader(data,description);
1788                 return;
1789         }
1790
1791         if (type == "box") {
1792                 parseBox(data,description);
1793                 return;
1794         }
1795
1796         if (type == "bgcolor") {
1797                 parseBackgroundColor(data,description);
1798                 return;
1799         }
1800
1801         if (type == "listcolors") {
1802                 parseListColors(data,description);
1803                 return;
1804         }
1805
1806         if (type == "tooltip") {
1807                 parseTooltip(data,description);
1808                 return;
1809         }
1810
1811         if (type == "scrollbar") {
1812                 parseScrollBar(data, description);
1813                 return;
1814         }
1815
1816         // Ignore others
1817         infostream
1818                 << "Unknown DrawSpec: type="<<type<<", data=\""<<description<<"\""
1819                 <<std::endl;
1820 }
1821
1822 void GUIFormSpecMenu::regenerateGui(v2u32 screensize)
1823 {
1824         /* useless to regenerate without a screensize */
1825         if ((screensize.X <= 0) || (screensize.Y <= 0)) {
1826                 return;
1827         }
1828
1829         parserData mydata;
1830
1831         //preserve tables
1832         for (u32 i = 0; i < m_tables.size(); ++i) {
1833                 std::string tablename = m_tables[i].first.fname;
1834                 GUITable *table = m_tables[i].second;
1835                 mydata.table_dyndata[tablename] = table->getDynamicData();
1836         }
1837
1838         //set focus
1839         if (!m_focused_element.empty())
1840                 mydata.focused_fieldname = m_focused_element;
1841
1842         //preserve focus
1843         gui::IGUIElement *focused_element = Environment->getFocus();
1844         if (focused_element && focused_element->getParent() == this) {
1845                 s32 focused_id = focused_element->getID();
1846                 if (focused_id > 257) {
1847                         for (u32 i=0; i<m_fields.size(); i++) {
1848                                 if (m_fields[i].fid == focused_id) {
1849                                         mydata.focused_fieldname =
1850                                                 m_fields[i].fname;
1851                                         break;
1852                                 }
1853                         }
1854                 }
1855         }
1856
1857         // Remove children
1858         removeChildren();
1859
1860         for (u32 i = 0; i < m_tables.size(); ++i) {
1861                 GUITable *table = m_tables[i].second;
1862                 table->drop();
1863         }
1864
1865         mydata.size= v2s32(100,100);
1866         mydata.screensize = screensize;
1867
1868         // Base position of contents of form
1869         mydata.basepos = getBasePos();
1870
1871         /* Convert m_init_draw_spec to m_inventorylists */
1872
1873         m_inventorylists.clear();
1874         m_images.clear();
1875         m_backgrounds.clear();
1876         m_itemimages.clear();
1877         m_tables.clear();
1878         m_checkboxes.clear();
1879         m_scrollbars.clear();
1880         m_fields.clear();
1881         m_boxes.clear();
1882         m_tooltips.clear();
1883
1884         // Set default values (fits old formspec values)
1885         m_bgcolor = video::SColor(140,0,0,0);
1886         m_bgfullscreen = false;
1887
1888         m_slotbg_n = video::SColor(255,128,128,128);
1889         m_slotbg_h = video::SColor(255,192,192,192);
1890
1891         m_default_tooltip_bgcolor = video::SColor(255,110,130,60);
1892         m_default_tooltip_color = video::SColor(255,255,255,255);
1893
1894         m_slotbordercolor = video::SColor(200,0,0,0);
1895         m_slotborder = false;
1896
1897         m_clipbackground = false;
1898         // Add tooltip
1899         {
1900                 assert(m_tooltip_element == NULL);
1901                 // Note: parent != this so that the tooltip isn't clipped by the menu rectangle
1902                 m_tooltip_element = Environment->addStaticText(L"",core::rect<s32>(0,0,110,18));
1903                 m_tooltip_element->enableOverrideColor(true);
1904                 m_tooltip_element->setBackgroundColor(m_default_tooltip_bgcolor);
1905                 m_tooltip_element->setDrawBackground(true);
1906                 m_tooltip_element->setDrawBorder(true);
1907                 m_tooltip_element->setOverrideColor(m_default_tooltip_color);
1908                 m_tooltip_element->setTextAlignment(gui::EGUIA_CENTER, gui::EGUIA_CENTER);
1909                 m_tooltip_element->setWordWrap(false);
1910                 //we're not parent so no autograb for this one!
1911                 m_tooltip_element->grab();
1912         }
1913
1914         std::vector<std::string> elements = split(m_formspec_string,']');
1915         unsigned int i = 0;
1916
1917         /* try to read version from first element only */
1918         if (elements.size() >= 1) {
1919                 if ( parseVersionDirect(elements[0]) ) {
1920                         i++;
1921                 }
1922         }
1923
1924         /* we need size first in order to calculate image scale */
1925         mydata.explicit_size = false;
1926         for (; i< elements.size(); i++) {
1927                 if (!parseSizeDirect(&mydata, elements[i])) {
1928                         break;
1929                 }
1930         }
1931
1932         if (mydata.explicit_size) {
1933                 // compute scaling for specified form size
1934                 if (m_lock) {
1935                         v2u32 current_screensize = m_device->getVideoDriver()->getScreenSize();
1936                         v2u32 delta = current_screensize - m_lockscreensize;
1937
1938                         if (current_screensize.Y > m_lockscreensize.Y)
1939                                 delta.Y /= 2;
1940                         else
1941                                 delta.Y = 0;
1942
1943                         if (current_screensize.X > m_lockscreensize.X)
1944                                 delta.X /= 2;
1945                         else
1946                                 delta.X = 0;
1947
1948                         offset = v2s32(delta.X,delta.Y);
1949
1950                         mydata.screensize = m_lockscreensize;
1951                 } else {
1952                         offset = v2s32(0,0);
1953                 }
1954
1955                 double gui_scaling = g_settings->getFloat("gui_scaling");
1956                 double screen_dpi = porting::getDisplayDensity() * 96;
1957
1958                 double use_imgsize;
1959                 if (m_lock) {
1960                         // In fixed-size mode, inventory image size
1961                         // is 0.53 inch multiplied by the gui_scaling
1962                         // config parameter.  This magic size is chosen
1963                         // to make the main menu (15.5 inventory images
1964                         // wide, including border) just fit into the
1965                         // default window (800 pixels wide) at 96 DPI
1966                         // and default scaling (1.00).
1967                         use_imgsize = 0.5555 * screen_dpi * gui_scaling;
1968                 } else {
1969                         // In variable-size mode, we prefer to make the
1970                         // inventory image size 1/15 of screen height,
1971                         // multiplied by the gui_scaling config parameter.
1972                         // If the preferred size won't fit the whole
1973                         // form on the screen, either horizontally or
1974                         // vertically, then we scale it down to fit.
1975                         // (The magic numbers in the computation of what
1976                         // fits arise from the scaling factors in the
1977                         // following stanza, including the form border,
1978                         // help text space, and 0.1 inventory slot spare.)
1979                         // However, a minimum size is also set, that
1980                         // the image size can't be less than 0.3 inch
1981                         // multiplied by gui_scaling, even if this means
1982                         // the form doesn't fit the screen.
1983                         double prefer_imgsize = mydata.screensize.Y / 15 *
1984                                                         gui_scaling;
1985                         double fitx_imgsize = mydata.screensize.X /
1986                                 ((5.0/4.0) * (0.5 + mydata.invsize.X));
1987                         double fity_imgsize = mydata.screensize.Y /
1988                                 ((15.0/13.0) * (0.85 * mydata.invsize.Y));
1989                         double screen_dpi = porting::getDisplayDensity() * 96;
1990                         double min_imgsize = 0.3 * screen_dpi * gui_scaling;
1991                         use_imgsize = MYMAX(min_imgsize, MYMIN(prefer_imgsize,
1992                                 MYMIN(fitx_imgsize, fity_imgsize)));
1993                 }
1994
1995                 // Everything else is scaled in proportion to the
1996                 // inventory image size.  The inventory slot spacing
1997                 // is 5/4 image size horizontally and 15/13 image size
1998                 // vertically.  The padding around the form (incorporating
1999                 // the border of the outer inventory slots) is 3/8
2000                 // image size.  Font height (baseline to baseline)
2001                 // is 2/5 vertical inventory slot spacing, and button
2002                 // half-height is 7/8 of font height.
2003                 imgsize = v2s32(use_imgsize, use_imgsize);
2004                 spacing = v2s32(use_imgsize*5.0/4, use_imgsize*15.0/13);
2005                 padding = v2s32(use_imgsize*3.0/8, use_imgsize*3.0/8);
2006                 m_btn_height = use_imgsize*15.0/13 * 0.35;
2007
2008                 m_font = g_fontengine->getFont();
2009
2010                 mydata.size = v2s32(
2011                         padding.X*2+spacing.X*(mydata.invsize.X-1.0)+imgsize.X,
2012                         padding.Y*2+spacing.Y*(mydata.invsize.Y-1.0)+imgsize.Y + m_btn_height*2.0/3.0
2013                 );
2014                 DesiredRect = mydata.rect = core::rect<s32>(
2015                                 mydata.screensize.X/2 - mydata.size.X/2 + offset.X,
2016                                 mydata.screensize.Y/2 - mydata.size.Y/2 + offset.Y,
2017                                 mydata.screensize.X/2 + mydata.size.X/2 + offset.X,
2018                                 mydata.screensize.Y/2 + mydata.size.Y/2 + offset.Y
2019                 );
2020         } else {
2021                 // Non-size[] form must consist only of text fields and
2022                 // implicit "Proceed" button.  Use default font, and
2023                 // temporary form size which will be recalculated below.
2024                 m_font = g_fontengine->getFont();
2025                 m_btn_height = font_line_height(m_font) * 0.875;
2026                 DesiredRect = core::rect<s32>(
2027                         mydata.screensize.X/2 - 580/2,
2028                         mydata.screensize.Y/2 - 300/2,
2029                         mydata.screensize.X/2 + 580/2,
2030                         mydata.screensize.Y/2 + 300/2
2031                 );
2032         }
2033         recalculateAbsolutePosition(false);
2034         mydata.basepos = getBasePos();
2035         m_tooltip_element->setOverrideFont(m_font);
2036
2037         gui::IGUISkin* skin = Environment->getSkin();
2038         sanity_check(skin != NULL);
2039         gui::IGUIFont *old_font = skin->getFont();
2040         skin->setFont(m_font);
2041
2042         for (; i< elements.size(); i++) {
2043                 parseElement(&mydata, elements[i]);
2044         }
2045
2046         // If there are fields without explicit size[], add a "Proceed"
2047         // button and adjust size to fit all the fields.
2048         if (m_fields.size() && !mydata.explicit_size) {
2049                 mydata.rect = core::rect<s32>(
2050                                 mydata.screensize.X/2 - 580/2,
2051                                 mydata.screensize.Y/2 - 300/2,
2052                                 mydata.screensize.X/2 + 580/2,
2053                                 mydata.screensize.Y/2 + 240/2+(m_fields.size()*60)
2054                 );
2055                 DesiredRect = mydata.rect;
2056                 recalculateAbsolutePosition(false);
2057                 mydata.basepos = getBasePos();
2058
2059                 {
2060                         v2s32 pos = mydata.basepos;
2061                         pos.Y = ((m_fields.size()+2)*60);
2062
2063                         v2s32 size = DesiredRect.getSize();
2064                         mydata.rect =
2065                                         core::rect<s32>(size.X/2-70, pos.Y,
2066                                                         (size.X/2-70)+140, pos.Y + (m_btn_height*2));
2067                         const wchar_t *text = wgettext("Proceed");
2068                         Environment->addButton(mydata.rect, this, 257, text);
2069                         delete[] text;
2070                 }
2071
2072         }
2073
2074         //set initial focus if parser didn't set it
2075         focused_element = Environment->getFocus();
2076         if (!focused_element
2077                         || !isMyChild(focused_element)
2078                         || focused_element->getType() == gui::EGUIET_TAB_CONTROL)
2079                 setInitialFocus();
2080
2081         skin->setFont(old_font);
2082 }
2083
2084 #ifdef __ANDROID__
2085 bool GUIFormSpecMenu::getAndroidUIInput()
2086 {
2087         /* no dialog shown */
2088         if (m_JavaDialogFieldName == "") {
2089                 return false;
2090         }
2091
2092         /* still waiting */
2093         if (porting::getInputDialogState() == -1) {
2094                 return true;
2095         }
2096
2097         std::string fieldname = m_JavaDialogFieldName;
2098         m_JavaDialogFieldName = "";
2099
2100         /* no value abort dialog processing */
2101         if (porting::getInputDialogState() != 0) {
2102                 return false;
2103         }
2104
2105         for(std::vector<FieldSpec>::iterator iter =  m_fields.begin();
2106                         iter != m_fields.end(); ++iter) {
2107
2108                 if (iter->fname != fieldname) {
2109                         continue;
2110                 }
2111                 IGUIElement* tochange = getElementFromId(iter->fid);
2112
2113                 if (tochange == 0) {
2114                         return false;
2115                 }
2116
2117                 if (tochange->getType() != irr::gui::EGUIET_EDIT_BOX) {
2118                         return false;
2119                 }
2120
2121                 std::string text = porting::getInputDialogValue();
2122
2123                 ((gui::IGUIEditBox*) tochange)->
2124                         setText(utf8_to_wide(text).c_str());
2125         }
2126         return false;
2127 }
2128 #endif
2129
2130 GUIFormSpecMenu::ItemSpec GUIFormSpecMenu::getItemAtPos(v2s32 p) const
2131 {
2132         core::rect<s32> imgrect(0,0,imgsize.X,imgsize.Y);
2133
2134         for(u32 i=0; i<m_inventorylists.size(); i++)
2135         {
2136                 const ListDrawSpec &s = m_inventorylists[i];
2137
2138                 for(s32 i=0; i<s.geom.X*s.geom.Y; i++) {
2139                         s32 item_i = i + s.start_item_i;
2140                         s32 x = (i%s.geom.X) * spacing.X;
2141                         s32 y = (i/s.geom.X) * spacing.Y;
2142                         v2s32 p0(x,y);
2143                         core::rect<s32> rect = imgrect + s.pos + p0;
2144                         if(rect.isPointInside(p))
2145                         {
2146                                 return ItemSpec(s.inventoryloc, s.listname, item_i);
2147                         }
2148                 }
2149         }
2150
2151         return ItemSpec(InventoryLocation(), "", -1);
2152 }
2153
2154 void GUIFormSpecMenu::drawList(const ListDrawSpec &s, int phase)
2155 {
2156         video::IVideoDriver* driver = Environment->getVideoDriver();
2157
2158         Inventory *inv = m_invmgr->getInventory(s.inventoryloc);
2159         if(!inv){
2160                 infostream<<"GUIFormSpecMenu::drawList(): WARNING: "
2161                                 <<"The inventory location "
2162                                 <<"\""<<s.inventoryloc.dump()<<"\" doesn't exist"
2163                                 <<std::endl;
2164                 return;
2165         }
2166         InventoryList *ilist = inv->getList(s.listname);
2167         if(!ilist){
2168                 infostream<<"GUIFormSpecMenu::drawList(): WARNING: "
2169                                 <<"The inventory list \""<<s.listname<<"\" @ \""
2170                                 <<s.inventoryloc.dump()<<"\" doesn't exist"
2171                                 <<std::endl;
2172                 return;
2173         }
2174
2175         core::rect<s32> imgrect(0,0,imgsize.X,imgsize.Y);
2176
2177         for(s32 i=0; i<s.geom.X*s.geom.Y; i++)
2178         {
2179                 s32 item_i = i + s.start_item_i;
2180                 if(item_i >= (s32) ilist->getSize())
2181                         break;
2182                 s32 x = (i%s.geom.X) * spacing.X;
2183                 s32 y = (i/s.geom.X) * spacing.Y;
2184                 v2s32 p(x,y);
2185                 core::rect<s32> rect = imgrect + s.pos + p;
2186                 ItemStack item;
2187                 if(ilist)
2188                         item = ilist->getItem(item_i);
2189
2190                 bool selected = m_selected_item
2191                         && m_invmgr->getInventory(m_selected_item->inventoryloc) == inv
2192                         && m_selected_item->listname == s.listname
2193                         && m_selected_item->i == item_i;
2194                 bool hovering = rect.isPointInside(m_pointer);
2195
2196                 if(phase == 0)
2197                 {
2198                         if(hovering)
2199                                 driver->draw2DRectangle(m_slotbg_h, rect, &AbsoluteClippingRect);
2200                         else
2201                                 driver->draw2DRectangle(m_slotbg_n, rect, &AbsoluteClippingRect);
2202                 }
2203
2204                 //Draw inv slot borders
2205                 if (m_slotborder) {
2206                         s32 x1 = rect.UpperLeftCorner.X;
2207                         s32 y1 = rect.UpperLeftCorner.Y;
2208                         s32 x2 = rect.LowerRightCorner.X;
2209                         s32 y2 = rect.LowerRightCorner.Y;
2210                         s32 border = 1;
2211                         driver->draw2DRectangle(m_slotbordercolor,
2212                                 core::rect<s32>(v2s32(x1 - border, y1 - border),
2213                                                                 v2s32(x2 + border, y1)), NULL);
2214                         driver->draw2DRectangle(m_slotbordercolor,
2215                                 core::rect<s32>(v2s32(x1 - border, y2),
2216                                                                 v2s32(x2 + border, y2 + border)), NULL);
2217                         driver->draw2DRectangle(m_slotbordercolor,
2218                                 core::rect<s32>(v2s32(x1 - border, y1),
2219                                                                 v2s32(x1, y2)), NULL);
2220                         driver->draw2DRectangle(m_slotbordercolor,
2221                                 core::rect<s32>(v2s32(x2, y1),
2222                                                                 v2s32(x2 + border, y2)), NULL);
2223                 }
2224
2225                 if(phase == 1)
2226                 {
2227                         // Draw item stack
2228                         if(selected)
2229                         {
2230                                 item.takeItem(m_selected_amount);
2231                         }
2232                         if(!item.empty())
2233                         {
2234                                 drawItemStack(driver, m_font, item,
2235                                                 rect, &AbsoluteClippingRect, m_gamedef);
2236                         }
2237
2238                         // Draw tooltip
2239                         std::string tooltip_text = "";
2240                         if (hovering && !m_selected_item)
2241                                 tooltip_text = item.getDefinition(m_gamedef->idef()).description;
2242                         if (tooltip_text != "") {
2243                                 std::vector<std::string> tt_rows = str_split(tooltip_text, '\n');
2244                                 m_tooltip_element->setBackgroundColor(m_default_tooltip_bgcolor);
2245                                 m_tooltip_element->setOverrideColor(m_default_tooltip_color);
2246                                 m_tooltip_element->setVisible(true);
2247                                 this->bringToFront(m_tooltip_element);
2248                                 m_tooltip_element->setText(utf8_to_wide(tooltip_text).c_str());
2249                                 s32 tooltip_width = m_tooltip_element->getTextWidth() + m_btn_height;
2250                                 s32 tooltip_height = m_tooltip_element->getTextHeight() * tt_rows.size() + 5;
2251                                 v2u32 screenSize = driver->getScreenSize();
2252                                 int tooltip_offset_x = m_btn_height;
2253                                 int tooltip_offset_y = m_btn_height;
2254 #ifdef __ANDROID__
2255                                 tooltip_offset_x *= 3;
2256                                 tooltip_offset_y  = 0;
2257                                 if (m_pointer.X > (s32)screenSize.X / 2)
2258                                         tooltip_offset_x = (tooltip_offset_x + tooltip_width) * -1;
2259 #endif
2260                                 s32 tooltip_x = m_pointer.X + tooltip_offset_x;
2261                                 s32 tooltip_y = m_pointer.Y + tooltip_offset_y;
2262                                 if (tooltip_x + tooltip_width > (s32)screenSize.X)
2263                                         tooltip_x = (s32)screenSize.X - tooltip_width  - m_btn_height;
2264                                 if (tooltip_y + tooltip_height > (s32)screenSize.Y)
2265                                         tooltip_y = (s32)screenSize.Y - tooltip_height - m_btn_height;
2266                                 m_tooltip_element->setRelativePosition(core::rect<s32>(
2267                                                 core::position2d<s32>(tooltip_x, tooltip_y),
2268                                                 core::dimension2d<s32>(tooltip_width, tooltip_height)));
2269                         }
2270                 }
2271         }
2272 }
2273
2274 void GUIFormSpecMenu::drawSelectedItem()
2275 {
2276         if(!m_selected_item)
2277                 return;
2278
2279         video::IVideoDriver* driver = Environment->getVideoDriver();
2280
2281         Inventory *inv = m_invmgr->getInventory(m_selected_item->inventoryloc);
2282         sanity_check(inv);
2283         InventoryList *list = inv->getList(m_selected_item->listname);
2284         sanity_check(list);
2285         ItemStack stack = list->getItem(m_selected_item->i);
2286         stack.count = m_selected_amount;
2287
2288         core::rect<s32> imgrect(0,0,imgsize.X,imgsize.Y);
2289         core::rect<s32> rect = imgrect + (m_pointer - imgrect.getCenter());
2290         drawItemStack(driver, m_font, stack, rect, NULL, m_gamedef);
2291 }
2292
2293 void GUIFormSpecMenu::drawMenu()
2294 {
2295         if(m_form_src){
2296                 std::string newform = m_form_src->getForm();
2297                 if(newform != m_formspec_string){
2298                         m_formspec_string = newform;
2299                         regenerateGui(m_screensize_old);
2300                 }
2301         }
2302
2303         gui::IGUISkin* skin = Environment->getSkin();
2304         sanity_check(skin != NULL);
2305         gui::IGUIFont *old_font = skin->getFont();
2306         skin->setFont(m_font);
2307
2308         updateSelectedItem();
2309
2310         video::IVideoDriver* driver = Environment->getVideoDriver();
2311
2312         v2u32 screenSize = driver->getScreenSize();
2313         core::rect<s32> allbg(0, 0, screenSize.X ,      screenSize.Y);
2314         if (m_bgfullscreen)
2315                 driver->draw2DRectangle(m_bgcolor, allbg, &allbg);
2316         else
2317                 driver->draw2DRectangle(m_bgcolor, AbsoluteRect, &AbsoluteClippingRect);
2318
2319         m_tooltip_element->setVisible(false);
2320
2321         /*
2322                 Draw backgrounds
2323         */
2324         for(u32 i=0; i<m_backgrounds.size(); i++)
2325         {
2326                 const ImageDrawSpec &spec = m_backgrounds[i];
2327                 video::ITexture *texture = m_tsrc->getTexture(spec.name);
2328
2329                 if (texture != 0) {
2330                         // Image size on screen
2331                         core::rect<s32> imgrect(0, 0, spec.geom.X, spec.geom.Y);
2332                         // Image rectangle on screen
2333                         core::rect<s32> rect = imgrect + spec.pos;
2334
2335                         if (m_clipbackground) {
2336                                 core::dimension2d<s32> absrec_size = AbsoluteRect.getSize();
2337                                 rect = core::rect<s32>(AbsoluteRect.UpperLeftCorner.X - spec.pos.X,
2338                                                                         AbsoluteRect.UpperLeftCorner.Y - spec.pos.Y,
2339                                                                         AbsoluteRect.UpperLeftCorner.X + absrec_size.Width + spec.pos.X,
2340                                                                         AbsoluteRect.UpperLeftCorner.Y + absrec_size.Height + spec.pos.Y);
2341                         }
2342
2343                         const video::SColor color(255,255,255,255);
2344                         const video::SColor colors[] = {color,color,color,color};
2345                         draw2DImageFilterScaled(driver, texture, rect,
2346                                 core::rect<s32>(core::position2d<s32>(0,0),
2347                                                 core::dimension2di(texture->getOriginalSize())),
2348                                 NULL/*&AbsoluteClippingRect*/, colors, true);
2349                 }
2350                 else {
2351                         errorstream << "GUIFormSpecMenu::drawMenu() Draw backgrounds unable to load texture:" << std::endl;
2352                         errorstream << "\t" << spec.name << std::endl;
2353                 }
2354         }
2355
2356         /*
2357                 Draw Boxes
2358         */
2359         for(u32 i=0; i<m_boxes.size(); i++)
2360         {
2361                 const BoxDrawSpec &spec = m_boxes[i];
2362
2363                 irr::video::SColor todraw = spec.color;
2364
2365                 todraw.setAlpha(140);
2366
2367                 core::rect<s32> rect(spec.pos.X,spec.pos.Y,
2368                                                         spec.pos.X + spec.geom.X,spec.pos.Y + spec.geom.Y);
2369
2370                 driver->draw2DRectangle(todraw, rect, 0);
2371         }
2372         /*
2373                 Draw images
2374         */
2375         for(u32 i=0; i<m_images.size(); i++)
2376         {
2377                 const ImageDrawSpec &spec = m_images[i];
2378                 video::ITexture *texture = m_tsrc->getTexture(spec.name);
2379
2380                 if (texture != 0) {
2381                         const core::dimension2d<u32>& img_origsize = texture->getOriginalSize();
2382                         // Image size on screen
2383                         core::rect<s32> imgrect;
2384
2385                         if (spec.scale)
2386                                 imgrect = core::rect<s32>(0,0,spec.geom.X, spec.geom.Y);
2387                         else {
2388
2389                                 imgrect = core::rect<s32>(0,0,img_origsize.Width,img_origsize.Height);
2390                         }
2391                         // Image rectangle on screen
2392                         core::rect<s32> rect = imgrect + spec.pos;
2393                         const video::SColor color(255,255,255,255);
2394                         const video::SColor colors[] = {color,color,color,color};
2395                         draw2DImageFilterScaled(driver, texture, rect,
2396                                 core::rect<s32>(core::position2d<s32>(0,0),img_origsize),
2397                                 NULL/*&AbsoluteClippingRect*/, colors, true);
2398                 }
2399                 else {
2400                         errorstream << "GUIFormSpecMenu::drawMenu() Draw images unable to load texture:" << std::endl;
2401                         errorstream << "\t" << spec.name << std::endl;
2402                 }
2403         }
2404
2405         /*
2406                 Draw item images
2407         */
2408         for(u32 i=0; i<m_itemimages.size(); i++)
2409         {
2410                 if (m_gamedef == 0)
2411                         break;
2412
2413                 const ImageDrawSpec &spec = m_itemimages[i];
2414                 IItemDefManager *idef = m_gamedef->idef();
2415                 ItemStack item;
2416                 item.deSerialize(spec.name, idef);
2417                 video::ITexture *texture = idef->getInventoryTexture(item.getDefinition(idef).name, m_gamedef);
2418                 // Image size on screen
2419                 core::rect<s32> imgrect(0, 0, spec.geom.X, spec.geom.Y);
2420                 // Image rectangle on screen
2421                 core::rect<s32> rect = imgrect + spec.pos;
2422                 const video::SColor color(255,255,255,255);
2423                 const video::SColor colors[] = {color,color,color,color};
2424                 draw2DImageFilterScaled(driver, texture, rect,
2425                         core::rect<s32>(core::position2d<s32>(0,0),
2426                                         core::dimension2di(texture->getOriginalSize())),
2427                         NULL/*&AbsoluteClippingRect*/, colors, true);
2428         }
2429
2430         /*
2431                 Draw items
2432                 Phase 0: Item slot rectangles
2433                 Phase 1: Item images; prepare tooltip
2434         */
2435         int start_phase=0;
2436         for(int phase=start_phase; phase<=1; phase++)
2437         for(u32 i=0; i<m_inventorylists.size(); i++)
2438         {
2439                 drawList(m_inventorylists[i], phase);
2440         }
2441
2442         /*
2443                 Call base class
2444         */
2445         gui::IGUIElement::draw();
2446
2447 /* TODO find way to show tooltips on touchscreen */
2448 #ifndef HAVE_TOUCHSCREENGUI
2449         m_pointer = m_device->getCursorControl()->getPosition();
2450 #endif
2451
2452         /*
2453                 Draw fields/buttons tooltips
2454         */
2455         gui::IGUIElement *hovered =
2456                         Environment->getRootGUIElement()->getElementFromPoint(m_pointer);
2457
2458         if (hovered != NULL) {
2459                 s32 id = hovered->getID();
2460
2461                 u32 delta = 0;
2462                 if (id == -1) {
2463                         m_old_tooltip_id = id;
2464                         m_old_tooltip = "";
2465                 } else {
2466                         if (id == m_old_tooltip_id) {
2467                                 delta = porting::getDeltaMs(m_hovered_time, getTimeMs());
2468                         } else {
2469                                 m_hovered_time = getTimeMs();
2470                                 m_old_tooltip_id = id;
2471                         }
2472                 }
2473
2474                 if (id != -1 && delta >= m_tooltip_show_delay) {
2475                         for(std::vector<FieldSpec>::iterator iter =  m_fields.begin();
2476                                         iter != m_fields.end(); ++iter) {
2477                                 if ( (iter->fid == id) && (m_tooltips[iter->fname].tooltip != "") ){
2478                                         if (m_old_tooltip != m_tooltips[iter->fname].tooltip) {
2479                                                 m_old_tooltip = m_tooltips[iter->fname].tooltip;
2480                                                 m_tooltip_element->setText(utf8_to_wide(m_tooltips[iter->fname].tooltip).c_str());
2481                                                 std::vector<std::string> tt_rows = str_split(m_tooltips[iter->fname].tooltip, '\n');
2482                                                 s32 tooltip_width = m_tooltip_element->getTextWidth() + m_btn_height;
2483                                                 s32 tooltip_height = m_tooltip_element->getTextHeight() * tt_rows.size() + 5;
2484                                                 int tooltip_offset_x = m_btn_height;
2485                                                 int tooltip_offset_y = m_btn_height;
2486 #ifdef __ANDROID__
2487                                                 tooltip_offset_x *= 3;
2488                                                 tooltip_offset_y  = 0;
2489                                                 if (m_pointer.X > (s32)screenSize.X / 2)
2490                                                         tooltip_offset_x = (tooltip_offset_x + tooltip_width) * -1;
2491 #endif
2492                                                 s32 tooltip_x = m_pointer.X + tooltip_offset_x;
2493                                                 s32 tooltip_y = m_pointer.Y + tooltip_offset_y;
2494                                                 if (tooltip_x + tooltip_width > (s32)screenSize.X)
2495                                                         tooltip_x = (s32)screenSize.X - tooltip_width  - m_btn_height;
2496                                                 if (tooltip_y + tooltip_height > (s32)screenSize.Y)
2497                                                         tooltip_y = (s32)screenSize.Y - tooltip_height - m_btn_height;
2498                                                 m_tooltip_element->setRelativePosition(core::rect<s32>(
2499                                                 core::position2d<s32>(tooltip_x, tooltip_y),
2500                                                 core::dimension2d<s32>(tooltip_width, tooltip_height)));
2501                                         }
2502                                         m_tooltip_element->setBackgroundColor(m_tooltips[iter->fname].bgcolor);
2503                                         m_tooltip_element->setOverrideColor(m_tooltips[iter->fname].color);
2504                                         m_tooltip_element->setVisible(true);
2505                                         this->bringToFront(m_tooltip_element);
2506                                         break;
2507                                 }
2508                         }
2509                 }
2510         }
2511
2512         /*
2513                 Draw dragged item stack
2514         */
2515         drawSelectedItem();
2516
2517         skin->setFont(old_font);
2518 }
2519
2520 void GUIFormSpecMenu::updateSelectedItem()
2521 {
2522         // If the selected stack has become empty for some reason, deselect it.
2523         // If the selected stack has become inaccessible, deselect it.
2524         // If the selected stack has become smaller, adjust m_selected_amount.
2525         ItemStack selected = verifySelectedItem();
2526
2527         // WARNING: BLACK MAGIC
2528         // See if there is a stack suited for our current guess.
2529         // If such stack does not exist, clear the guess.
2530         if(m_selected_content_guess.name != "" &&
2531                         selected.name == m_selected_content_guess.name &&
2532                         selected.count == m_selected_content_guess.count){
2533                 // Selected item fits the guess. Skip the black magic.
2534         }
2535         else if(m_selected_content_guess.name != ""){
2536                 bool found = false;
2537                 for(u32 i=0; i<m_inventorylists.size() && !found; i++){
2538                         const ListDrawSpec &s = m_inventorylists[i];
2539                         Inventory *inv = m_invmgr->getInventory(s.inventoryloc);
2540                         if(!inv)
2541                                 continue;
2542                         InventoryList *list = inv->getList(s.listname);
2543                         if(!list)
2544                                 continue;
2545                         for(s32 i=0; i<s.geom.X*s.geom.Y && !found; i++){
2546                                 u32 item_i = i + s.start_item_i;
2547                                 if(item_i >= list->getSize())
2548                                         continue;
2549                                 ItemStack stack = list->getItem(item_i);
2550                                 if(stack.name == m_selected_content_guess.name &&
2551                                                 stack.count == m_selected_content_guess.count){
2552                                         found = true;
2553                                         infostream<<"Client: Changing selected content guess to "
2554                                                         <<s.inventoryloc.dump()<<" "<<s.listname
2555                                                         <<" "<<item_i<<std::endl;
2556                                         delete m_selected_item;
2557                                         m_selected_item = new ItemSpec(s.inventoryloc, s.listname, item_i);
2558                                         m_selected_amount = stack.count;
2559                                 }
2560                         }
2561                 }
2562                 if(!found){
2563                         infostream<<"Client: Discarding selected content guess: "
2564                                         <<m_selected_content_guess.getItemString()<<std::endl;
2565                         m_selected_content_guess.name = "";
2566                 }
2567         }
2568
2569         // If craftresult is nonempty and nothing else is selected, select it now.
2570         if(!m_selected_item)
2571         {
2572                 for(u32 i=0; i<m_inventorylists.size(); i++)
2573                 {
2574                         const ListDrawSpec &s = m_inventorylists[i];
2575                         if(s.listname == "craftpreview")
2576                         {
2577                                 Inventory *inv = m_invmgr->getInventory(s.inventoryloc);
2578                                 InventoryList *list = inv->getList("craftresult");
2579                                 if(list && list->getSize() >= 1 && !list->getItem(0).empty())
2580                                 {
2581                                         m_selected_item = new ItemSpec;
2582                                         m_selected_item->inventoryloc = s.inventoryloc;
2583                                         m_selected_item->listname = "craftresult";
2584                                         m_selected_item->i = 0;
2585                                         m_selected_amount = 0;
2586                                         m_selected_dragging = false;
2587                                         break;
2588                                 }
2589                         }
2590                 }
2591         }
2592
2593         // If craftresult is selected, keep the whole stack selected
2594         if(m_selected_item && m_selected_item->listname == "craftresult")
2595         {
2596                 m_selected_amount = verifySelectedItem().count;
2597         }
2598 }
2599
2600 ItemStack GUIFormSpecMenu::verifySelectedItem()
2601 {
2602         // If the selected stack has become empty for some reason, deselect it.
2603         // If the selected stack has become inaccessible, deselect it.
2604         // If the selected stack has become smaller, adjust m_selected_amount.
2605         // Return the selected stack.
2606
2607         if(m_selected_item)
2608         {
2609                 if(m_selected_item->isValid())
2610                 {
2611                         Inventory *inv = m_invmgr->getInventory(m_selected_item->inventoryloc);
2612                         if(inv)
2613                         {
2614                                 InventoryList *list = inv->getList(m_selected_item->listname);
2615                                 if(list && (u32) m_selected_item->i < list->getSize())
2616                                 {
2617                                         ItemStack stack = list->getItem(m_selected_item->i);
2618                                         if(m_selected_amount > stack.count)
2619                                                 m_selected_amount = stack.count;
2620                                         if(!stack.empty())
2621                                                 return stack;
2622                                 }
2623                         }
2624                 }
2625
2626                 // selection was not valid
2627                 delete m_selected_item;
2628                 m_selected_item = NULL;
2629                 m_selected_amount = 0;
2630                 m_selected_dragging = false;
2631         }
2632         return ItemStack();
2633 }
2634
2635 void GUIFormSpecMenu::acceptInput(FormspecQuitMode quitmode=quit_mode_no)
2636 {
2637         if(m_text_dst)
2638         {
2639                 StringMap fields;
2640
2641                 if (quitmode == quit_mode_accept) {
2642                         fields["quit"] = "true";
2643                 }
2644
2645                 if (quitmode == quit_mode_cancel) {
2646                         fields["quit"] = "true";
2647                         m_text_dst->gotText(fields);
2648                         return;
2649                 }
2650
2651                 if (current_keys_pending.key_down) {
2652                         fields["key_down"] = "true";
2653                         current_keys_pending.key_down = false;
2654                 }
2655
2656                 if (current_keys_pending.key_up) {
2657                         fields["key_up"] = "true";
2658                         current_keys_pending.key_up = false;
2659                 }
2660
2661                 if (current_keys_pending.key_enter) {
2662                         fields["key_enter"] = "true";
2663                         current_keys_pending.key_enter = false;
2664                 }
2665
2666                 if (current_keys_pending.key_escape) {
2667                         fields["key_escape"] = "true";
2668                         current_keys_pending.key_escape = false;
2669                 }
2670
2671                 for(unsigned int i=0; i<m_fields.size(); i++) {
2672                         const FieldSpec &s = m_fields[i];
2673                         if(s.send) {
2674                                 std::string name = s.fname;
2675                                 if (s.ftype == f_Button) {
2676                                         fields[name] = wide_to_utf8(s.flabel);
2677                                 } else if (s.ftype == f_Table) {
2678                                         GUITable *table = getTable(s.fname);
2679                                         if (table) {
2680                                                 fields[name] = table->checkEvent();
2681                                         }
2682                                 }
2683                                 else if(s.ftype == f_DropDown) {
2684                                         // no dynamic cast possible due to some distributions shipped
2685                                         // without rtti support in irrlicht
2686                                         IGUIElement * element = getElementFromId(s.fid);
2687                                         gui::IGUIComboBox *e = NULL;
2688                                         if ((element) && (element->getType() == gui::EGUIET_COMBO_BOX)) {
2689                                                 e = static_cast<gui::IGUIComboBox*>(element);
2690                                         }
2691                                         s32 selected = e->getSelected();
2692                                         if (selected >= 0) {
2693                                                 fields[name] =
2694                                                         wide_to_utf8(e->getItem(selected));
2695                                         }
2696                                 }
2697                                 else if (s.ftype == f_TabHeader) {
2698                                         // no dynamic cast possible due to some distributions shipped
2699                                         // without rtti support in irrlicht
2700                                         IGUIElement * element = getElementFromId(s.fid);
2701                                         gui::IGUITabControl *e = NULL;
2702                                         if ((element) && (element->getType() == gui::EGUIET_TAB_CONTROL)) {
2703                                                 e = static_cast<gui::IGUITabControl*>(element);
2704                                         }
2705
2706                                         if (e != 0) {
2707                                                 std::stringstream ss;
2708                                                 ss << (e->getActiveTab() +1);
2709                                                 fields[name] = ss.str();
2710                                         }
2711                                 }
2712                                 else if (s.ftype == f_CheckBox) {
2713                                         // no dynamic cast possible due to some distributions shipped
2714                                         // without rtti support in irrlicht
2715                                         IGUIElement * element = getElementFromId(s.fid);
2716                                         gui::IGUICheckBox *e = NULL;
2717                                         if ((element) && (element->getType() == gui::EGUIET_CHECK_BOX)) {
2718                                                 e = static_cast<gui::IGUICheckBox*>(element);
2719                                         }
2720
2721                                         if (e != 0) {
2722                                                 if (e->isChecked())
2723                                                         fields[name] = "true";
2724                                                 else
2725                                                         fields[name] = "false";
2726                                         }
2727                                 }
2728                                 else if (s.ftype == f_ScrollBar) {
2729                                         // no dynamic cast possible due to some distributions shipped
2730                                         // without rtti support in irrlicht
2731                                         IGUIElement * element = getElementFromId(s.fid);
2732                                         gui::IGUIScrollBar *e = NULL;
2733                                         if ((element) && (element->getType() == gui::EGUIET_SCROLL_BAR)) {
2734                                                 e = static_cast<gui::IGUIScrollBar*>(element);
2735                                         }
2736
2737                                         if (e != 0) {
2738                                                 std::stringstream os;
2739                                                 os << e->getPos();
2740                                                 if (s.fdefault == L"Changed")
2741                                                         fields[name] = "CHG:" + os.str();
2742                                                 else
2743                                                         fields[name] = "VAL:" + os.str();
2744                                         }
2745                                 }
2746                                 else
2747                                 {
2748                                         IGUIElement* e = getElementFromId(s.fid);
2749                                         if(e != NULL) {
2750                                                 fields[name] = wide_to_utf8(e->getText());
2751                                         }
2752                                 }
2753                         }
2754                 }
2755
2756                 m_text_dst->gotText(fields);
2757         }
2758 }
2759
2760 static bool isChild(gui::IGUIElement * tocheck, gui::IGUIElement * parent)
2761 {
2762         while(tocheck != NULL) {
2763                 if (tocheck == parent) {
2764                         return true;
2765                 }
2766                 tocheck = tocheck->getParent();
2767         }
2768         return false;
2769 }
2770
2771 bool GUIFormSpecMenu::preprocessEvent(const SEvent& event)
2772 {
2773         // The IGUITabControl renders visually using the skin's selected
2774         // font, which we override for the duration of form drawing,
2775         // but computes tab hotspots based on how it would have rendered
2776         // using the font that is selected at the time of button release.
2777         // To make these two consistent, temporarily override the skin's
2778         // font while the IGUITabControl is processing the event.
2779         if (event.EventType == EET_MOUSE_INPUT_EVENT &&
2780                         event.MouseInput.Event == EMIE_LMOUSE_LEFT_UP) {
2781                 s32 x = event.MouseInput.X;
2782                 s32 y = event.MouseInput.Y;
2783                 gui::IGUIElement *hovered =
2784                         Environment->getRootGUIElement()->getElementFromPoint(
2785                                 core::position2d<s32>(x, y));
2786                 if (hovered && isMyChild(hovered) &&
2787                                 hovered->getType() == gui::EGUIET_TAB_CONTROL) {
2788                         gui::IGUISkin* skin = Environment->getSkin();
2789                         sanity_check(skin != NULL);
2790                         gui::IGUIFont *old_font = skin->getFont();
2791                         skin->setFont(m_font);
2792                         bool retval = hovered->OnEvent(event);
2793                         skin->setFont(old_font);
2794                         return retval;
2795                 }
2796         }
2797
2798         // Fix Esc/Return key being eaten by checkboxen and tables
2799         if(event.EventType==EET_KEY_INPUT_EVENT) {
2800                 KeyPress kp(event.KeyInput);
2801                 if (kp == EscapeKey || kp == CancelKey
2802                                 || kp == getKeySetting("keymap_inventory")
2803                                 || event.KeyInput.Key==KEY_RETURN) {
2804                         gui::IGUIElement *focused = Environment->getFocus();
2805                         if (focused && isMyChild(focused) &&
2806                                         (focused->getType() == gui::EGUIET_LIST_BOX ||
2807                                          focused->getType() == gui::EGUIET_CHECK_BOX)) {
2808                                 OnEvent(event);
2809                                 return true;
2810                         }
2811                 }
2812         }
2813         // Mouse wheel events: send to hovered element instead of focused
2814         if(event.EventType==EET_MOUSE_INPUT_EVENT
2815                         && event.MouseInput.Event == EMIE_MOUSE_WHEEL) {
2816                 s32 x = event.MouseInput.X;
2817                 s32 y = event.MouseInput.Y;
2818                 gui::IGUIElement *hovered =
2819                         Environment->getRootGUIElement()->getElementFromPoint(
2820                                 core::position2d<s32>(x, y));
2821                 if (hovered && isMyChild(hovered)) {
2822                         hovered->OnEvent(event);
2823                         return true;
2824                 }
2825         }
2826
2827         if (event.EventType == EET_MOUSE_INPUT_EVENT) {
2828                 s32 x = event.MouseInput.X;
2829                 s32 y = event.MouseInput.Y;
2830                 gui::IGUIElement *hovered =
2831                         Environment->getRootGUIElement()->getElementFromPoint(
2832                                 core::position2d<s32>(x, y));
2833                 if (event.MouseInput.Event == EMIE_LMOUSE_PRESSED_DOWN) {
2834                         m_old_tooltip_id = -1;
2835                         m_old_tooltip = "";
2836                 }
2837                 if (!isChild(hovered,this)) {
2838                         if (DoubleClickDetection(event)) {
2839                                 return true;
2840                         }
2841                 }
2842         }
2843
2844         #ifdef __ANDROID__
2845         // display software keyboard when clicking edit boxes
2846         if (event.EventType == EET_MOUSE_INPUT_EVENT
2847                         && event.MouseInput.Event == EMIE_LMOUSE_PRESSED_DOWN) {
2848                 gui::IGUIElement *hovered =
2849                         Environment->getRootGUIElement()->getElementFromPoint(
2850                                 core::position2d<s32>(event.MouseInput.X, event.MouseInput.Y));
2851                 if ((hovered) && (hovered->getType() == irr::gui::EGUIET_EDIT_BOX)) {
2852                         bool retval = hovered->OnEvent(event);
2853                         if (retval) {
2854                                 Environment->setFocus(hovered);
2855                         }
2856                         m_JavaDialogFieldName = getNameByID(hovered->getID());
2857                         std::string message   = gettext("Enter ");
2858                         std::string label     = wide_to_utf8(getLabelByID(hovered->getID()));
2859                         if (label == "") {
2860                                 label = "text";
2861                         }
2862                         message += gettext(label) + ":";
2863
2864                         /* single line text input */
2865                         int type = 2;
2866
2867                         /* multi line text input */
2868                         if (((gui::IGUIEditBox*) hovered)->isMultiLineEnabled()) {
2869                                 type = 1;
2870                         }
2871
2872                         /* passwords are always single line */
2873                         if (((gui::IGUIEditBox*) hovered)->isPasswordBox()) {
2874                                 type = 3;
2875                         }
2876
2877                         porting::showInputDialog(gettext("ok"), "",
2878                                         wide_to_utf8(((gui::IGUIEditBox*) hovered)->getText()),
2879                                         type);
2880                         return retval;
2881                 }
2882         }
2883
2884         if (event.EventType == EET_TOUCH_INPUT_EVENT)
2885         {
2886                 SEvent translated;
2887                 memset(&translated, 0, sizeof(SEvent));
2888                 translated.EventType   = EET_MOUSE_INPUT_EVENT;
2889                 gui::IGUIElement* root = Environment->getRootGUIElement();
2890
2891                 if (!root) {
2892                         errorstream
2893                         << "GUIFormSpecMenu::preprocessEvent unable to get root element"
2894                         << std::endl;
2895                         return false;
2896                 }
2897                 gui::IGUIElement* hovered = root->getElementFromPoint(
2898                         core::position2d<s32>(
2899                                         event.TouchInput.X,
2900                                         event.TouchInput.Y));
2901
2902                 translated.MouseInput.X = event.TouchInput.X;
2903                 translated.MouseInput.Y = event.TouchInput.Y;
2904                 translated.MouseInput.Control = false;
2905
2906                 bool dont_send_event = false;
2907
2908                 if (event.TouchInput.touchedCount == 1) {
2909                         switch (event.TouchInput.Event) {
2910                                 case ETIE_PRESSED_DOWN:
2911                                         m_pointer = v2s32(event.TouchInput.X,event.TouchInput.Y);
2912                                         translated.MouseInput.Event = EMIE_LMOUSE_PRESSED_DOWN;
2913                                         translated.MouseInput.ButtonStates = EMBSM_LEFT;
2914                                         m_down_pos = m_pointer;
2915                                         break;
2916                                 case ETIE_MOVED:
2917                                         m_pointer = v2s32(event.TouchInput.X,event.TouchInput.Y);
2918                                         translated.MouseInput.Event = EMIE_MOUSE_MOVED;
2919                                         translated.MouseInput.ButtonStates = EMBSM_LEFT;
2920                                         break;
2921                                 case ETIE_LEFT_UP:
2922                                         translated.MouseInput.Event = EMIE_LMOUSE_LEFT_UP;
2923                                         translated.MouseInput.ButtonStates = 0;
2924                                         hovered = root->getElementFromPoint(m_down_pos);
2925                                         /* we don't have a valid pointer element use last
2926                                          * known pointer pos */
2927                                         translated.MouseInput.X = m_pointer.X;
2928                                         translated.MouseInput.Y = m_pointer.Y;
2929
2930                                         /* reset down pos */
2931                                         m_down_pos = v2s32(0,0);
2932                                         break;
2933                                 default:
2934                                         dont_send_event = true;
2935                                         //this is not supposed to happen
2936                                         errorstream
2937                                         << "GUIFormSpecMenu::preprocessEvent unexpected usecase Event="
2938                                         << event.TouchInput.Event << std::endl;
2939                         }
2940                 } else if ( (event.TouchInput.touchedCount == 2) &&
2941                                 (event.TouchInput.Event == ETIE_PRESSED_DOWN) ) {
2942                         hovered = root->getElementFromPoint(m_down_pos);
2943
2944                         translated.MouseInput.Event = EMIE_RMOUSE_PRESSED_DOWN;
2945                         translated.MouseInput.ButtonStates = EMBSM_LEFT | EMBSM_RIGHT;
2946                         translated.MouseInput.X = m_pointer.X;
2947                         translated.MouseInput.Y = m_pointer.Y;
2948
2949                         if (hovered) {
2950                                 hovered->OnEvent(translated);
2951                         }
2952
2953                         translated.MouseInput.Event = EMIE_RMOUSE_LEFT_UP;
2954                         translated.MouseInput.ButtonStates = EMBSM_LEFT;
2955
2956
2957                         if (hovered) {
2958                                 hovered->OnEvent(translated);
2959                         }
2960                         dont_send_event = true;
2961                 }
2962                 /* ignore unhandled 2 touch events ... accidental moving for example */
2963                 else if (event.TouchInput.touchedCount == 2) {
2964                         dont_send_event = true;
2965                 }
2966                 else if (event.TouchInput.touchedCount > 2) {
2967                         errorstream
2968                         << "GUIFormSpecMenu::preprocessEvent to many multitouch events "
2969                         << event.TouchInput.touchedCount << " ignoring them" << std::endl;
2970                 }
2971
2972                 if (dont_send_event) {
2973                         return true;
2974                 }
2975
2976                 /* check if translated event needs to be preprocessed again */
2977                 if (preprocessEvent(translated)) {
2978                         return true;
2979                 }
2980                 if (hovered) {
2981                         grab();
2982                         bool retval = hovered->OnEvent(translated);
2983
2984                         if (event.TouchInput.Event == ETIE_LEFT_UP) {
2985                                 /* reset pointer */
2986                                 m_pointer = v2s32(0,0);
2987                         }
2988                         drop();
2989                         return retval;
2990                 }
2991         }
2992         #endif
2993
2994         return false;
2995 }
2996
2997 /******************************************************************************/
2998 bool GUIFormSpecMenu::DoubleClickDetection(const SEvent event)
2999 {
3000         /* The following code is for capturing double-clicks of the mouse button
3001          * and translating the double-click into an EET_KEY_INPUT_EVENT event
3002          * -- which closes the form -- under some circumstances.
3003          *
3004          * There have been many github issues reporting this as a bug even though it
3005          * was an intended feature.  For this reason, remapping the double-click as
3006          * an ESC must be explicitly set when creating this class via the
3007          * /p remap_dbl_click parameter of the constructor.
3008          */
3009
3010         if (!m_remap_dbl_click)
3011                 return false;
3012
3013         if (event.MouseInput.Event == EMIE_LMOUSE_PRESSED_DOWN) {
3014                 m_doubleclickdetect[0].pos  = m_doubleclickdetect[1].pos;
3015                 m_doubleclickdetect[0].time = m_doubleclickdetect[1].time;
3016
3017                 m_doubleclickdetect[1].pos  = m_pointer;
3018                 m_doubleclickdetect[1].time = getTimeMs();
3019         }
3020         else if (event.MouseInput.Event == EMIE_LMOUSE_LEFT_UP) {
3021                 u32 delta = porting::getDeltaMs(m_doubleclickdetect[0].time, getTimeMs());
3022                 if (delta > 400) {
3023                         return false;
3024                 }
3025
3026                 double squaredistance =
3027                                 m_doubleclickdetect[0].pos
3028                                 .getDistanceFromSQ(m_doubleclickdetect[1].pos);
3029
3030                 if (squaredistance > (30*30)) {
3031                         return false;
3032                 }
3033
3034                 SEvent* translated = new SEvent();
3035                 assert(translated != 0);
3036                 //translate doubleclick to escape
3037                 memset(translated, 0, sizeof(SEvent));
3038                 translated->EventType = irr::EET_KEY_INPUT_EVENT;
3039                 translated->KeyInput.Key         = KEY_ESCAPE;
3040                 translated->KeyInput.Control     = false;
3041                 translated->KeyInput.Shift       = false;
3042                 translated->KeyInput.PressedDown = true;
3043                 translated->KeyInput.Char        = 0;
3044                 OnEvent(*translated);
3045
3046                 // no need to send the key up event as we're already deleted
3047                 // and no one else did notice this event
3048                 delete translated;
3049                 return true;
3050         }
3051
3052         return false;
3053 }
3054
3055 bool GUIFormSpecMenu::OnEvent(const SEvent& event)
3056 {
3057         if (event.EventType==EET_KEY_INPUT_EVENT) {
3058                 KeyPress kp(event.KeyInput);
3059                 if (event.KeyInput.PressedDown && ( (kp == EscapeKey) ||
3060                                 (kp == getKeySetting("keymap_inventory")) || (kp == CancelKey))) {
3061                         if (m_allowclose) {
3062                                 doPause = false;
3063                                 acceptInput(quit_mode_cancel);
3064                                 quitMenu();
3065                         } else {
3066                                 m_text_dst->gotText(L"MenuQuit");
3067                         }
3068                         return true;
3069                 } else if (m_client != NULL && event.KeyInput.PressedDown &&
3070                                 (kp == getKeySetting("keymap_screenshot"))) {
3071                         m_client->makeScreenshot(m_device);
3072                 }
3073                 if (event.KeyInput.PressedDown &&
3074                         (event.KeyInput.Key==KEY_RETURN ||
3075                          event.KeyInput.Key==KEY_UP ||
3076                          event.KeyInput.Key==KEY_DOWN)
3077                         ) {
3078                         switch (event.KeyInput.Key) {
3079                                 case KEY_RETURN:
3080                                         current_keys_pending.key_enter = true;
3081                                         break;
3082                                 case KEY_UP:
3083                                         current_keys_pending.key_up = true;
3084                                         break;
3085                                 case KEY_DOWN:
3086                                         current_keys_pending.key_down = true;
3087                                         break;
3088                                 break;
3089                                 default:
3090                                         //can't happen at all!
3091                                         FATAL_ERROR("Reached a source line that can't ever been reached");
3092                                         break;
3093                         }
3094                         if (current_keys_pending.key_enter && m_allowclose) {
3095                                 acceptInput(quit_mode_accept);
3096                                 quitMenu();
3097                         } else {
3098                                 acceptInput();
3099                         }
3100                         return true;
3101                 }
3102
3103         }
3104
3105         /* Mouse event other than movement, or crossing the border of inventory
3106           field while holding right mouse button
3107          */
3108         if (event.EventType == EET_MOUSE_INPUT_EVENT &&
3109                         (event.MouseInput.Event != EMIE_MOUSE_MOVED ||
3110                          (event.MouseInput.Event == EMIE_MOUSE_MOVED &&
3111                           event.MouseInput.isRightPressed() &&
3112                           getItemAtPos(m_pointer).i != getItemAtPos(m_old_pointer).i))) {
3113
3114                 // Get selected item and hovered/clicked item (s)
3115
3116                 m_old_tooltip_id = -1;
3117                 updateSelectedItem();
3118                 ItemSpec s = getItemAtPos(m_pointer);
3119
3120                 Inventory *inv_selected = NULL;
3121                 Inventory *inv_s = NULL;
3122                 InventoryList *list_s = NULL;
3123
3124                 if (m_selected_item) {
3125                         inv_selected = m_invmgr->getInventory(m_selected_item->inventoryloc);
3126                         sanity_check(inv_selected);
3127                         sanity_check(inv_selected->getList(m_selected_item->listname) != NULL);
3128                 }
3129
3130                 u32 s_count = 0;
3131
3132                 if (s.isValid())
3133                 do { // breakable
3134                         inv_s = m_invmgr->getInventory(s.inventoryloc);
3135
3136                         if (!inv_s) {
3137                                 errorstream << "InventoryMenu: The selected inventory location "
3138                                                 << "\"" << s.inventoryloc.dump() << "\" doesn't exist"
3139                                                 << std::endl;
3140                                 s.i = -1;  // make it invalid again
3141                                 break;
3142                         }
3143
3144                         list_s = inv_s->getList(s.listname);
3145                         if (list_s == NULL) {
3146                                 verbosestream << "InventoryMenu: The selected inventory list \""
3147                                                 << s.listname << "\" does not exist" << std::endl;
3148                                 s.i = -1;  // make it invalid again
3149                                 break;
3150                         }
3151
3152                         if ((u32)s.i >= list_s->getSize()) {
3153                                 infostream << "InventoryMenu: The selected inventory list \""
3154                                                 << s.listname << "\" is too small (i=" << s.i << ", size="
3155                                                 << list_s->getSize() << ")" << std::endl;
3156                                 s.i = -1;  // make it invalid again
3157                                 break;
3158                         }
3159
3160                         s_count = list_s->getItem(s.i).count;
3161                 } while(0);
3162
3163                 bool identical = (m_selected_item != NULL) && s.isValid() &&
3164                         (inv_selected == inv_s) &&
3165                         (m_selected_item->listname == s.listname) &&
3166                         (m_selected_item->i == s.i);
3167
3168                 // buttons: 0 = left, 1 = right, 2 = middle
3169                 // up/down: 0 = down (press), 1 = up (release), 2 = unknown event, -1 movement
3170                 int button = 0;
3171                 int updown = 2;
3172                 if (event.MouseInput.Event == EMIE_LMOUSE_PRESSED_DOWN)
3173                         { button = 0; updown = 0; }
3174                 else if (event.MouseInput.Event == EMIE_RMOUSE_PRESSED_DOWN)
3175                         { button = 1; updown = 0; }
3176                 else if (event.MouseInput.Event == EMIE_MMOUSE_PRESSED_DOWN)
3177                         { button = 2; updown = 0; }
3178                 else if (event.MouseInput.Event == EMIE_LMOUSE_LEFT_UP)
3179                         { button = 0; updown = 1; }
3180                 else if (event.MouseInput.Event == EMIE_RMOUSE_LEFT_UP)
3181                         { button = 1; updown = 1; }
3182                 else if (event.MouseInput.Event == EMIE_MMOUSE_LEFT_UP)
3183                         { button = 2; updown = 1; }
3184                 else if (event.MouseInput.Event == EMIE_MOUSE_MOVED)
3185                         { updown = -1;}
3186
3187                 // Set this number to a positive value to generate a move action
3188                 // from m_selected_item to s.
3189                 u32 move_amount = 0;
3190
3191                 // Set this number to a positive value to generate a move action
3192                 // from s to the next inventory ring.
3193                 u32 shift_move_amount = 0;
3194
3195                 // Set this number to a positive value to generate a drop action
3196                 // from m_selected_item.
3197                 u32 drop_amount = 0;
3198
3199                 // Set this number to a positive value to generate a craft action at s.
3200                 u32 craft_amount = 0;
3201
3202                 if (updown == 0) {
3203                         // Some mouse button has been pressed
3204
3205                         //infostream<<"Mouse button "<<button<<" pressed at p=("
3206                         //      <<p.X<<","<<p.Y<<")"<<std::endl;
3207
3208                         m_selected_dragging = false;
3209
3210                         if (s.isValid() && s.listname == "craftpreview") {
3211                                 // Craft preview has been clicked: craft
3212                                 craft_amount = (button == 2 ? 10 : 1);
3213                         } else if (m_selected_item == NULL) {
3214                                 if (s_count != 0) {
3215                                         // Non-empty stack has been clicked: select or shift-move it
3216                                         m_selected_item = new ItemSpec(s);
3217
3218                                         u32 count;
3219                                         if (button == 1)  // right
3220                                                 count = (s_count + 1) / 2;
3221                                         else if (button == 2)  // middle
3222                                                 count = MYMIN(s_count, 10);
3223                                         else  // left
3224                                                 count = s_count;
3225
3226                                         if (!event.MouseInput.Shift) {
3227                                                 // no shift: select item
3228                                                 m_selected_amount = count;
3229                                                 m_selected_dragging = true;
3230                                                 m_rmouse_auto_place = false;
3231                                         } else {
3232                                                 // shift pressed: move item
3233                                                 if (button != 1)
3234                                                         shift_move_amount = count;
3235                                                 else // count of 1 at left click like after drag & drop
3236                                                         shift_move_amount = 1;
3237                                         }
3238                                 }
3239                         } else { // m_selected_item != NULL
3240                                 assert(m_selected_amount >= 1);
3241
3242                                 if (s.isValid()) {
3243                                         // Clicked a slot: move
3244                                         if (button == 1)  // right
3245                                                 move_amount = 1;
3246                                         else if (button == 2)  // middle
3247                                                 move_amount = MYMIN(m_selected_amount, 10);
3248                                         else  // left
3249                                                 move_amount = m_selected_amount;
3250
3251                                         if (identical) {
3252                                                 if (move_amount >= m_selected_amount)
3253                                                         m_selected_amount = 0;
3254                                                 else
3255                                                         m_selected_amount -= move_amount;
3256                                                 move_amount = 0;
3257                                         }
3258                                 }
3259                                 else if (!getAbsoluteClippingRect().isPointInside(m_pointer)) {
3260                                         // Clicked outside of the window: drop
3261                                         if (button == 1)  // right
3262                                                 drop_amount = 1;
3263                                         else if (button == 2)  // middle
3264                                                 drop_amount = MYMIN(m_selected_amount, 10);
3265                                         else  // left
3266                                                 drop_amount = m_selected_amount;
3267                                 }
3268                         }
3269                 }
3270                 else if (updown == 1) {
3271                         // Some mouse button has been released
3272
3273                         //infostream<<"Mouse button "<<button<<" released at p=("
3274                         //      <<p.X<<","<<p.Y<<")"<<std::endl;
3275
3276                         if (m_selected_item != NULL && m_selected_dragging && s.isValid()) {
3277                                 if (!identical) {
3278                                         // Dragged to different slot: move all selected
3279                                         move_amount = m_selected_amount;
3280                                 }
3281                         } else if (m_selected_item != NULL && m_selected_dragging &&
3282                                         !(getAbsoluteClippingRect().isPointInside(m_pointer))) {
3283                                 // Dragged outside of window: drop all selected
3284                                 drop_amount = m_selected_amount;
3285                         }
3286
3287                         m_selected_dragging = false;
3288                         // Keep count of how many times right mouse button has been
3289                         // clicked. One click is drag without dropping. Click + release
3290                         // + click changes to drop one item when moved mode
3291                         if (button == 1 && m_selected_item != NULL)
3292                                 m_rmouse_auto_place = !m_rmouse_auto_place;
3293                 } else if (updown == -1) {
3294                         // Mouse has been moved and rmb is down and mouse pointer just
3295                         // entered a new inventory field (checked in the entry-if, this
3296                         // is the only action here that is generated by mouse movement)
3297                         if (m_selected_item != NULL && s.isValid()) {
3298                                 // Move 1 item
3299                                 // TODO: middle mouse to move 10 items might be handy
3300                                 if (m_rmouse_auto_place) {
3301                                         // Only move an item if the destination slot is empty
3302                                         // or contains the same item type as what is going to be
3303                                         // moved
3304                                         InventoryList *list_from = inv_selected->getList(m_selected_item->listname);
3305                                         InventoryList *list_to = list_s;
3306                                         assert(list_from && list_to);
3307                                         ItemStack stack_from = list_from->getItem(m_selected_item->i);
3308                                         ItemStack stack_to = list_to->getItem(s.i);
3309                                         if (stack_to.empty() || stack_to.name == stack_from.name)
3310                                                 move_amount = 1;
3311                                 }
3312                         }
3313                 }
3314
3315                 // Possibly send inventory action to server
3316                 if (move_amount > 0) {
3317                         // Send IACTION_MOVE
3318
3319                         assert(m_selected_item && m_selected_item->isValid());
3320                         assert(s.isValid());
3321
3322                         assert(inv_selected && inv_s);
3323                         InventoryList *list_from = inv_selected->getList(m_selected_item->listname);
3324                         InventoryList *list_to = list_s;
3325                         assert(list_from && list_to);
3326                         ItemStack stack_from = list_from->getItem(m_selected_item->i);
3327                         ItemStack stack_to = list_to->getItem(s.i);
3328
3329                         // Check how many items can be moved
3330                         move_amount = stack_from.count = MYMIN(move_amount, stack_from.count);
3331                         ItemStack leftover = stack_to.addItem(stack_from, m_gamedef->idef());
3332                         // If source stack cannot be added to destination stack at all,
3333                         // they are swapped
3334                         if ((leftover.count == stack_from.count) &&
3335                                         (leftover.name == stack_from.name)) {
3336                                 m_selected_amount = stack_to.count;
3337                                 // In case the server doesn't directly swap them but instead
3338                                 // moves stack_to somewhere else, set this
3339                                 m_selected_content_guess = stack_to;
3340                                 m_selected_content_guess_inventory = s.inventoryloc;
3341                         }
3342                         // Source stack goes fully into destination stack
3343                         else if (leftover.empty()) {
3344                                 m_selected_amount -= move_amount;
3345                                 m_selected_content_guess = ItemStack(); // Clear
3346                         }
3347                         // Source stack goes partly into destination stack
3348                         else {
3349                                 move_amount -= leftover.count;
3350                                 m_selected_amount -= move_amount;
3351                                 m_selected_content_guess = ItemStack(); // Clear
3352                         }
3353
3354                         infostream << "Handing IACTION_MOVE to manager" << std::endl;
3355                         IMoveAction *a = new IMoveAction();
3356                         a->count = move_amount;
3357                         a->from_inv = m_selected_item->inventoryloc;
3358                         a->from_list = m_selected_item->listname;
3359                         a->from_i = m_selected_item->i;
3360                         a->to_inv = s.inventoryloc;
3361                         a->to_list = s.listname;
3362                         a->to_i = s.i;
3363                         m_invmgr->inventoryAction(a);
3364                 } else if (shift_move_amount > 0) {
3365                         u32 mis = m_inventory_rings.size();
3366                         u32 i = 0;
3367                         for (; i < mis; i++) {
3368                                 const ListRingSpec &sp = m_inventory_rings[i];
3369                                 if (sp.inventoryloc == s.inventoryloc
3370                                                 && sp.listname == s.listname)
3371                                         break;
3372                         }
3373                         do {
3374                                 if (i >= mis) // if not found
3375                                         break;
3376                                 u32 to_inv_ind = (i + 1) % mis;
3377                                 const ListRingSpec &to_inv_sp = m_inventory_rings[to_inv_ind];
3378                                 InventoryList *list_from = list_s;
3379                                 if (!s.isValid())
3380                                         break;
3381                                 Inventory *inv_to = m_invmgr->getInventory(to_inv_sp.inventoryloc);
3382                                 if (!inv_to)
3383                                         break;
3384                                 InventoryList *list_to = inv_to->getList(to_inv_sp.listname);
3385                                 if (!list_to)
3386                                         break;
3387                                 ItemStack stack_from = list_from->getItem(s.i);
3388                                 assert(shift_move_amount <= stack_from.count);
3389                                 if (m_client->getProtoVersion() >= 25) {
3390                                         infostream << "Handing IACTION_MOVE to manager" << std::endl;
3391                                         IMoveAction *a = new IMoveAction();
3392                                         a->count = shift_move_amount;
3393                                         a->from_inv = s.inventoryloc;
3394                                         a->from_list = s.listname;
3395                                         a->from_i = s.i;
3396                                         a->to_inv = to_inv_sp.inventoryloc;
3397                                         a->to_list = to_inv_sp.listname;
3398                                         a->move_somewhere = true;
3399                                         m_invmgr->inventoryAction(a);
3400                                 } else {
3401                                         // find a place (or more than one) to add the new item
3402                                         u32 ilt_size = list_to->getSize();
3403                                         ItemStack leftover;
3404                                         for (u32 slot_to = 0; slot_to < ilt_size
3405                                                         && shift_move_amount > 0; slot_to++) {
3406                                                 list_to->itemFits(slot_to, stack_from, &leftover);
3407                                                 if (leftover.count < stack_from.count) {
3408                                                         infostream << "Handing IACTION_MOVE to manager" << std::endl;
3409                                                         IMoveAction *a = new IMoveAction();
3410                                                         a->count = MYMIN(shift_move_amount,
3411                                                                 (u32) (stack_from.count - leftover.count));
3412                                                         shift_move_amount -= a->count;
3413                                                         a->from_inv = s.inventoryloc;
3414                                                         a->from_list = s.listname;
3415                                                         a->from_i = s.i;
3416                                                         a->to_inv = to_inv_sp.inventoryloc;
3417                                                         a->to_list = to_inv_sp.listname;
3418                                                         a->to_i = slot_to;
3419                                                         m_invmgr->inventoryAction(a);
3420                                                         stack_from = leftover;
3421                                                 }
3422                                         }
3423                                 }
3424                         } while (0);
3425                 } else if (drop_amount > 0) {
3426                         m_selected_content_guess = ItemStack(); // Clear
3427
3428                         // Send IACTION_DROP
3429
3430                         assert(m_selected_item && m_selected_item->isValid());
3431                         assert(inv_selected);
3432                         InventoryList *list_from = inv_selected->getList(m_selected_item->listname);
3433                         assert(list_from);
3434                         ItemStack stack_from = list_from->getItem(m_selected_item->i);
3435
3436                         // Check how many items can be dropped
3437                         drop_amount = stack_from.count = MYMIN(drop_amount, stack_from.count);
3438                         assert(drop_amount > 0 && drop_amount <= m_selected_amount);
3439                         m_selected_amount -= drop_amount;
3440
3441                         infostream << "Handing IACTION_DROP to manager" << std::endl;
3442                         IDropAction *a = new IDropAction();
3443                         a->count = drop_amount;
3444                         a->from_inv = m_selected_item->inventoryloc;
3445                         a->from_list = m_selected_item->listname;
3446                         a->from_i = m_selected_item->i;
3447                         m_invmgr->inventoryAction(a);
3448                 } else if (craft_amount > 0) {
3449                         m_selected_content_guess = ItemStack(); // Clear
3450
3451                         // Send IACTION_CRAFT
3452
3453                         assert(s.isValid());
3454                         assert(inv_s);
3455
3456                         infostream << "Handing IACTION_CRAFT to manager" << std::endl;
3457                         ICraftAction *a = new ICraftAction();
3458                         a->count = craft_amount;
3459                         a->craft_inv = s.inventoryloc;
3460                         m_invmgr->inventoryAction(a);
3461                 }
3462
3463                 // If m_selected_amount has been decreased to zero, deselect
3464                 if (m_selected_amount == 0) {
3465                         delete m_selected_item;
3466                         m_selected_item = NULL;
3467                         m_selected_amount = 0;
3468                         m_selected_dragging = false;
3469                         m_selected_content_guess = ItemStack();
3470                 }
3471                 m_old_pointer = m_pointer;
3472         }
3473         if (event.EventType == EET_GUI_EVENT) {
3474
3475                 if (event.GUIEvent.EventType == gui::EGET_TAB_CHANGED
3476                                 && isVisible()) {
3477                         // find the element that was clicked
3478                         for (unsigned int i=0; i<m_fields.size(); i++) {
3479                                 FieldSpec &s = m_fields[i];
3480                                 if ((s.ftype == f_TabHeader) &&
3481                                                 (s.fid == event.GUIEvent.Caller->getID())) {
3482                                         s.send = true;
3483                                         acceptInput();
3484                                         s.send = false;
3485                                         return true;
3486                                 }
3487                         }
3488                 }
3489                 if (event.GUIEvent.EventType == gui::EGET_ELEMENT_FOCUS_LOST
3490                                 && isVisible()) {
3491                         if (!canTakeFocus(event.GUIEvent.Element)) {
3492                                 infostream<<"GUIFormSpecMenu: Not allowing focus change."
3493                                                 <<std::endl;
3494                                 // Returning true disables focus change
3495                                 return true;
3496                         }
3497                 }
3498                 if ((event.GUIEvent.EventType == gui::EGET_BUTTON_CLICKED) ||
3499                                 (event.GUIEvent.EventType == gui::EGET_CHECKBOX_CHANGED) ||
3500                                 (event.GUIEvent.EventType == gui::EGET_COMBO_BOX_CHANGED) ||
3501                                 (event.GUIEvent.EventType == gui::EGET_SCROLL_BAR_CHANGED)) {
3502                         unsigned int btn_id = event.GUIEvent.Caller->getID();
3503
3504                         if (btn_id == 257) {
3505                                 if (m_allowclose) {
3506                                         acceptInput(quit_mode_accept);
3507                                         quitMenu();
3508                                 } else {
3509                                         acceptInput();
3510                                         m_text_dst->gotText(L"ExitButton");
3511                                 }
3512                                 // quitMenu deallocates menu
3513                                 return true;
3514                         }
3515
3516                         // find the element that was clicked
3517                         for (u32 i = 0; i < m_fields.size(); i++) {
3518                                 FieldSpec &s = m_fields[i];
3519                                 // if its a button, set the send field so
3520                                 // lua knows which button was pressed
3521                                 if (((s.ftype == f_Button) || (s.ftype == f_CheckBox)) &&
3522                                                 (s.fid == event.GUIEvent.Caller->getID())) {
3523                                         s.send = true;
3524                                         if (s.is_exit) {
3525                                                 if (m_allowclose) {
3526                                                         acceptInput(quit_mode_accept);
3527                                                         quitMenu();
3528                                                 } else {
3529                                                         m_text_dst->gotText(L"ExitButton");
3530                                                 }
3531                                                 return true;
3532                                         } else {
3533                                                 acceptInput(quit_mode_no);
3534                                                 s.send = false;
3535                                                 return true;
3536                                         }
3537                                 } else if ((s.ftype == f_DropDown) &&
3538                                                 (s.fid == event.GUIEvent.Caller->getID())) {
3539                                         // only send the changed dropdown
3540                                         for (u32 i = 0; i < m_fields.size(); i++) {
3541                                                 FieldSpec &s2 = m_fields[i];
3542                                                 if (s2.ftype == f_DropDown) {
3543                                                         s2.send = false;
3544                                                 }
3545                                         }
3546                                         s.send = true;
3547                                         acceptInput(quit_mode_no);
3548
3549                                         // revert configuration to make sure dropdowns are sent on
3550                                         // regular button click
3551                                         for (u32 i = 0; i < m_fields.size(); i++) {
3552                                                 FieldSpec &s2 = m_fields[i];
3553                                                 if (s2.ftype == f_DropDown) {
3554                                                         s2.send = true;
3555                                                 }
3556                                         }
3557                                         return true;
3558                                 } else if ((s.ftype == f_ScrollBar) &&
3559                                                 (s.fid == event.GUIEvent.Caller->getID())) {
3560                                         s.fdefault = L"Changed";
3561                                         acceptInput(quit_mode_no);
3562                                         s.fdefault = L"";
3563                                 }
3564                         }
3565                 }
3566
3567                 if (event.GUIEvent.EventType == gui::EGET_EDITBOX_ENTER) {
3568                         if (event.GUIEvent.Caller->getID() > 257) {
3569
3570                                 if (m_allowclose) {
3571                                         acceptInput(quit_mode_accept);
3572                                         quitMenu();
3573                                 } else {
3574                                         current_keys_pending.key_enter = true;
3575                                         acceptInput();
3576                                 }
3577                                 // quitMenu deallocates menu
3578                                 return true;
3579                         }
3580                 }
3581
3582                 if (event.GUIEvent.EventType == gui::EGET_TABLE_CHANGED) {
3583                         int current_id = event.GUIEvent.Caller->getID();
3584                         if (current_id > 257) {
3585                                 // find the element that was clicked
3586                                 for (u32 i = 0; i < m_fields.size(); i++) {
3587                                         FieldSpec &s = m_fields[i];
3588                                         // if it's a table, set the send field
3589                                         // so lua knows which table was changed
3590                                         if ((s.ftype == f_Table) && (s.fid == current_id)) {
3591                                                 s.send = true;
3592                                                 acceptInput();
3593                                                 s.send=false;
3594                                         }
3595                                 }
3596                                 return true;
3597                         }
3598                 }
3599         }
3600
3601         return Parent ? Parent->OnEvent(event) : false;
3602 }
3603
3604 /**
3605  * get name of element by element id
3606  * @param id of element
3607  * @return name string or empty string
3608  */
3609 std::string GUIFormSpecMenu::getNameByID(s32 id)
3610 {
3611         for(std::vector<FieldSpec>::iterator iter =  m_fields.begin();
3612                                 iter != m_fields.end(); ++iter) {
3613                 if (iter->fid == id) {
3614                         return iter->fname;
3615                 }
3616         }
3617         return "";
3618 }
3619
3620 /**
3621  * get label of element by id
3622  * @param id of element
3623  * @return label string or empty string
3624  */
3625 std::wstring GUIFormSpecMenu::getLabelByID(s32 id)
3626 {
3627         for(std::vector<FieldSpec>::iterator iter =  m_fields.begin();
3628                                 iter != m_fields.end(); ++iter) {
3629                 if (iter->fid == id) {
3630                         return iter->flabel;
3631                 }
3632         }
3633         return L"";
3634 }