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