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 "tile.h" // ITextureSource
  41 #include "hud.h" // drawItemStack
  42 #include "hex.h"
  43 #include "util/string.h"
  44 #include "util/numeric.h"
  45 #include "filesys.h"
  46 #include "gettime.h"
  47 #include "gettext.h"
  48 #include "scripting_game.h"
  49 #include "porting.h"
  50 #include "main.h"
  51 #include "settings.h"
  52 #include "client.h"
  53 #include "util/string.h" // for parseColorString()
  54 #include "fontengine.h"
  55
  56 #define MY_CHECKPOS(a,b)                                                                                                        \
  57         if (v_pos.size() != 2) {                                                                                                \
  58                 errorstream<< "Invalid pos for element " << a << "specified: \""        \
  59                         << parts[b] << "\"" << std::endl;                                                               \
  60                         return;                                                                                                                 \
  61         }
  62
  63 #define MY_CHECKGEOM(a,b)                                                                                                       \
  64         if (v_geom.size() != 2) {                                                                                               \
  65                 errorstream<< "Invalid pos for element " << a << "specified: \""        \
  66                         << parts[b] << "\"" << std::endl;                                                               \
  67                         return;                                                                                                                 \
  68         }
  69 /*
  70         GUIFormSpecMenu
  71 */
  72 static unsigned int font_line_height(gui::IGUIFont *font)
  73 {
  74         return font->getDimension(L"Ay").Height + font->getKerningHeight();
  75 }
  76
  77 GUIFormSpecMenu::GUIFormSpecMenu(irr::IrrlichtDevice* dev,
  78                 gui::IGUIElement* parent, s32 id, IMenuManager *menumgr,
  79                 InventoryManager *invmgr, IGameDef *gamedef,
  80                 ISimpleTextureSource *tsrc, IFormSource* fsrc, TextDest* tdst,
  81                 Client* client) :
  82         GUIModalMenu(dev->getGUIEnvironment(), parent, id, menumgr),
  83         m_device(dev),
  84         m_invmgr(invmgr),
  85         m_gamedef(gamedef),
  86         m_tsrc(tsrc),
  87         m_client(client),
  88         m_selected_item(NULL),
  89         m_selected_amount(0),
  90         m_selected_dragging(false),
  91         m_tooltip_element(NULL),
  92         m_hovered_time(0),
  93         m_old_tooltip_id(-1),
  94         m_rmouse_auto_place(false),
  95         m_allowclose(true),
  96         m_lock(false),
  97         m_form_src(fsrc),
  98         m_text_dst(tdst),
  99         m_formspec_version(0),
 100         m_font(NULL)
 101 #ifdef __ANDROID__
 102         ,m_JavaDialogFieldName(L"")
 103 #endif
 104 {
 105         current_keys_pending.key_down = false;
 106         current_keys_pending.key_up = false;
 107         current_keys_pending.key_enter = false;
 108         current_keys_pending.key_escape = false;
 109
 110         m_doubleclickdetect[0].time = 0;
 111         m_doubleclickdetect[1].time = 0;
 112
 113         m_doubleclickdetect[0].pos = v2s32(0, 0);
 114         m_doubleclickdetect[1].pos = v2s32(0, 0);
 115
 116         m_tooltip_show_delay = (u32)g_settings->getS32("tooltip_show_delay");
 117 }
 118
 119 GUIFormSpecMenu::~GUIFormSpecMenu()
 120 {
 121         removeChildren();
 122
 123         for (u32 i = 0; i < m_tables.size(); ++i) {
 124                 GUITable *table = m_tables[i].second;
 125                 table->drop();
 126         }
 127
 128         delete m_selected_item;
 129
 130         if (m_form_src != NULL) {
 131                 delete m_form_src;
 132         }
 133         if (m_text_dst != NULL) {
 134                 delete m_text_dst;
 135         }
 136 }
 137
 138 void GUIFormSpecMenu::removeChildren()
 139 {
 140         const core::list<gui::IGUIElement*> &children = getChildren();
 141
 142         while(!children.empty()) {
 143                 (*children.getLast())->remove();
 144         }
 145
 146         if(m_tooltip_element) {
 147                 m_tooltip_element->remove();
 148                 m_tooltip_element->drop();
 149                 m_tooltip_element = NULL;
 150         }
 151
 152 }
 153
 154 void GUIFormSpecMenu::setInitialFocus()
 155 {
 156         // Set initial focus according to following order of precedence:
 157         // 1. first empty editbox
 158         // 2. first editbox
 159         // 3. first table
 160         // 4. last button
 161         // 5. first focusable (not statictext, not tabheader)
 162         // 6. first child element
 163
 164         core::list<gui::IGUIElement*> children = getChildren();
 165
 166         // in case "children" contains any NULL elements, remove them
 167         for (core::list<gui::IGUIElement*>::Iterator it = children.begin();
 168                         it != children.end();) {
 169                 if (*it)
 170                         ++it;
 171                 else
 172                         it = children.erase(it);
 173         }
 174
 175         // 1. first empty editbox
 176         for (core::list<gui::IGUIElement*>::Iterator it = children.begin();
 177                         it != children.end(); ++it) {
 178                 if ((*it)->getType() == gui::EGUIET_EDIT_BOX
 179                                 && (*it)->getText()[0] == 0) {
 180                         Environment->setFocus(*it);
 181                         return;
 182                 }
 183         }
 184
 185         // 2. first editbox
 186         for (core::list<gui::IGUIElement*>::Iterator it = children.begin();
 187                         it != children.end(); ++it) {
 188                 if ((*it)->getType() == gui::EGUIET_EDIT_BOX) {
 189                         Environment->setFocus(*it);
 190                         return;
 191                 }
 192         }
 193
 194         // 3. first table
 195         for (core::list<gui::IGUIElement*>::Iterator it = children.begin();
 196                         it != children.end(); ++it) {
 197                 if ((*it)->getTypeName() == std::string("GUITable")) {
 198                         Environment->setFocus(*it);
 199                         return;
 200                 }
 201         }
 202
 203         // 4. last button
 204         for (core::list<gui::IGUIElement*>::Iterator it = children.getLast();
 205                         it != children.end(); --it) {
 206                 if ((*it)->getType() == gui::EGUIET_BUTTON) {
 207                         Environment->setFocus(*it);
 208                         return;
 209                 }
 210         }
 211
 212         // 5. first focusable (not statictext, not tabheader)
 213         for (core::list<gui::IGUIElement*>::Iterator it = children.begin();
 214                         it != children.end(); ++it) {
 215                 if ((*it)->getType() != gui::EGUIET_STATIC_TEXT &&
 216                                 (*it)->getType() != gui::EGUIET_TAB_CONTROL) {
 217                         Environment->setFocus(*it);
 218                         return;
 219                 }
 220         }
 221
 222         // 6. first child element
 223         if (children.empty())
 224                 Environment->setFocus(this);
 225         else
 226                 Environment->setFocus(*(children.begin()));
 227 }
 228
 229 GUITable* GUIFormSpecMenu::getTable(std::wstring tablename)
 230 {
 231         for (u32 i = 0; i < m_tables.size(); ++i) {
 232                 if (tablename == m_tables[i].first.fname)
 233                         return m_tables[i].second;
 234         }
 235         return 0;
 236 }
 237
 238 std::vector<std::string> split(const std::string &s, char delim) {
 239         std::vector<std::string> tokens;
 240
 241         std::string current = "";
 242         bool last_was_escape = false;
 243         for(unsigned int i=0; i < s.size(); i++) {
 244                 if (last_was_escape) {
 245                         current += '\\';
 246                         current += s.c_str()[i];
 247                         last_was_escape = false;
 248                 }
 249                 else {
 250                         if (s.c_str()[i] == delim) {
 251                                 tokens.push_back(current);
 252                                 current = "";
 253                                 last_was_escape = false;
 254                         }
 255                         else if (s.c_str()[i] == '\\'){
 256                                 last_was_escape = true;
 257                         }
 258                         else {
 259                                 current += s.c_str()[i];
 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(texture);
1310                 e->setPressedImage(pressed_texture);
1311                 e->setScaleImage(true);
1312                 e->setNotClipped(noclip);
1313                 e->setDrawBorder(drawborder);
1314
1315                 m_fields.push_back(spec);
1316                 return;
1317         }
1318
1319         errorstream<< "Invalid imagebutton element(" << parts.size() << "): '" << element << "'"  << std::endl;
1320 }
1321
1322 void GUIFormSpecMenu::parseTabHeader(parserData* data,std::string element)
1323 {
1324         std::vector<std::string> parts = split(element,';');
1325
1326         if (((parts.size() == 4) || (parts.size() == 6)) ||
1327                 ((parts.size() > 6) && (m_formspec_version > FORMSPEC_API_VERSION)))
1328         {
1329                 std::vector<std::string> v_pos = split(parts[0],',');
1330                 std::string name = parts[1];
1331                 std::vector<std::string> buttons = split(parts[2],',');
1332                 std::string str_index = parts[3];
1333                 bool show_background = true;
1334                 bool show_border = true;
1335                 int tab_index = stoi(str_index) -1;
1336
1337                 MY_CHECKPOS("tabheader",0);
1338
1339                 if (parts.size() == 6) {
1340                         if (parts[4] == "true")
1341                                 show_background = false;
1342                         if (parts[5] == "false")
1343                                 show_border = false;
1344                 }
1345
1346                 FieldSpec spec(
1347                         narrow_to_wide(name),
1348                         L"",
1349                         L"",
1350                         258+m_fields.size()
1351                 );
1352
1353                 spec.ftype = f_TabHeader;
1354
1355                 v2s32 pos(0,0);
1356                 pos.X += stof(v_pos[0]) * (float)spacing.X;
1357                 pos.Y += stof(v_pos[1]) * (float)spacing.Y - m_btn_height * 2;
1358                 v2s32 geom;
1359                 geom.X = DesiredRect.getWidth();
1360                 geom.Y = m_btn_height*2;
1361
1362                 core::rect<s32> rect = core::rect<s32>(pos.X, pos.Y, pos.X+geom.X,
1363                                 pos.Y+geom.Y);
1364
1365                 gui::IGUITabControl *e = Environment->addTabControl(rect, this,
1366                                 show_background, show_border, spec.fid);
1367                 e->setAlignment(irr::gui::EGUIA_UPPERLEFT, irr::gui::EGUIA_UPPERLEFT,
1368                                 irr::gui::EGUIA_UPPERLEFT, irr::gui::EGUIA_LOWERRIGHT);
1369                 e->setTabHeight(m_btn_height*2);
1370
1371                 if (spec.fname == data->focused_fieldname) {
1372                         Environment->setFocus(e);
1373                 }
1374
1375                 e->setNotClipped(true);
1376
1377                 for (unsigned int i=0; i< buttons.size(); i++) {
1378                         e->addTab(narrow_to_wide(buttons[i]).c_str(), -1);
1379                 }
1380
1381                 if ((tab_index >= 0) &&
1382                                 (buttons.size() < INT_MAX) &&
1383                                 (tab_index < (int) buttons.size()))
1384                         e->setActiveTab(tab_index);
1385
1386                 m_fields.push_back(spec);
1387                 return;
1388         }
1389         errorstream << "Invalid TabHeader element(" << parts.size() << "): '"
1390                         << element << "'"  << std::endl;
1391 }
1392
1393 void GUIFormSpecMenu::parseItemImageButton(parserData* data,std::string element)
1394 {
1395
1396         if (m_gamedef == 0) {
1397                 errorstream <<
1398                                 "WARNING: invalid use of item_image_button with m_gamedef==0"
1399                                 << std::endl;
1400                 return;
1401         }
1402
1403         std::vector<std::string> parts = split(element,';');
1404
1405         if ((parts.size() == 5) ||
1406                 ((parts.size() > 5) && (m_formspec_version > FORMSPEC_API_VERSION)))
1407         {
1408                 std::vector<std::string> v_pos = split(parts[0],',');
1409                 std::vector<std::string> v_geom = split(parts[1],',');
1410                 std::string item_name = parts[2];
1411                 std::string name = parts[3];
1412                 std::string label = parts[4];
1413
1414                 MY_CHECKPOS("itemimagebutton",0);
1415                 MY_CHECKGEOM("itemimagebutton",1);
1416
1417                 v2s32 pos = padding;
1418                 pos.X += stof(v_pos[0]) * (float)spacing.X;
1419                 pos.Y += stof(v_pos[1]) * (float)spacing.Y;
1420                 v2s32 geom;
1421                 geom.X = (stof(v_geom[0]) * (float)spacing.X)-(spacing.X-imgsize.X);
1422                 geom.Y = (stof(v_geom[1]) * (float)spacing.Y)-(spacing.Y-imgsize.Y);
1423
1424                 core::rect<s32> rect = core::rect<s32>(pos.X, pos.Y, pos.X+geom.X, pos.Y+geom.Y);
1425
1426                 if(!data->explicit_size)
1427                         errorstream<<"WARNING: invalid use of item_image_button without a size[] element"<<std::endl;
1428
1429                 IItemDefManager *idef = m_gamedef->idef();
1430                 ItemStack item;
1431                 item.deSerialize(item_name, idef);
1432                 video::ITexture *texture = idef->getInventoryTexture(item.getDefinition(idef).name, m_gamedef);
1433
1434                 m_tooltips[narrow_to_wide(name)] =
1435                         TooltipSpec (item.getDefinition(idef).description,
1436                                                 m_default_tooltip_bgcolor,
1437                                                 m_default_tooltip_color);
1438
1439                 label = unescape_string(label);
1440                 FieldSpec spec(
1441                         narrow_to_wide(name),
1442                         narrow_to_wide(label),
1443                         narrow_to_wide(item_name),
1444                         258+m_fields.size()
1445                 );
1446
1447                 gui::IGUIButton *e = Environment->addButton(rect, this, spec.fid, spec.flabel.c_str());
1448
1449                 if (spec.fname == data->focused_fieldname) {
1450                         Environment->setFocus(e);
1451                 }
1452
1453                 e->setUseAlphaChannel(true);
1454                 e->setImage(texture);
1455                 e->setPressedImage(texture);
1456                 e->setScaleImage(true);
1457                 spec.ftype = f_Button;
1458                 rect+=data->basepos-padding;
1459                 spec.rect=rect;
1460                 m_fields.push_back(spec);
1461                 return;
1462         }
1463         errorstream<< "Invalid ItemImagebutton element(" << parts.size() << "): '" << element << "'"  << std::endl;
1464 }
1465
1466 void GUIFormSpecMenu::parseBox(parserData* data,std::string element)
1467 {
1468         std::vector<std::string> parts = split(element,';');
1469
1470         if ((parts.size() == 3) ||
1471                 ((parts.size() > 3) && (m_formspec_version > FORMSPEC_API_VERSION)))
1472         {
1473                 std::vector<std::string> v_pos = split(parts[0],',');
1474                 std::vector<std::string> v_geom = split(parts[1],',');
1475
1476                 MY_CHECKPOS("box",0);
1477                 MY_CHECKGEOM("box",1);
1478
1479                 v2s32 pos = padding + AbsoluteRect.UpperLeftCorner;
1480                 pos.X += stof(v_pos[0]) * (float) spacing.X;
1481                 pos.Y += stof(v_pos[1]) * (float) spacing.Y;
1482
1483                 v2s32 geom;
1484                 geom.X = stof(v_geom[0]) * (float)spacing.X;
1485                 geom.Y = stof(v_geom[1]) * (float)spacing.Y;
1486
1487                 video::SColor tmp_color;
1488
1489                 if (parseColorString(parts[2], tmp_color, false)) {
1490                         BoxDrawSpec spec(pos, geom, tmp_color);
1491
1492                         m_boxes.push_back(spec);
1493                 }
1494                 else {
1495                         errorstream<< "Invalid Box element(" << parts.size() << "): '" << element << "'  INVALID COLOR"  << std::endl;
1496                 }
1497                 return;
1498         }
1499         errorstream<< "Invalid Box element(" << parts.size() << "): '" << element << "'"  << std::endl;
1500 }
1501
1502 void GUIFormSpecMenu::parseBackgroundColor(parserData* data,std::string element)
1503 {
1504         std::vector<std::string> parts = split(element,';');
1505
1506         if (((parts.size() == 1) || (parts.size() == 2)) ||
1507                 ((parts.size() > 2) && (m_formspec_version > FORMSPEC_API_VERSION)))
1508         {
1509                 parseColorString(parts[0],m_bgcolor,false);
1510
1511                 if (parts.size() == 2) {
1512                         std::string fullscreen = parts[1];
1513                         m_bgfullscreen = is_yes(fullscreen);
1514                 }
1515                 return;
1516         }
1517         errorstream<< "Invalid bgcolor element(" << parts.size() << "): '" << element << "'"  << std::endl;
1518 }
1519
1520 void GUIFormSpecMenu::parseListColors(parserData* data,std::string element)
1521 {
1522         std::vector<std::string> parts = split(element,';');
1523
1524         if (((parts.size() == 2) || (parts.size() == 3) || (parts.size() == 5)) ||
1525                 ((parts.size() > 5) && (m_formspec_version > FORMSPEC_API_VERSION)))
1526         {
1527                 parseColorString(parts[0], m_slotbg_n, false);
1528                 parseColorString(parts[1], m_slotbg_h, false);
1529
1530                 if (parts.size() >= 3) {
1531                         if (parseColorString(parts[2], m_slotbordercolor, false)) {
1532                                 m_slotborder = true;
1533                         }
1534                 }
1535                 if (parts.size() == 5) {
1536                         video::SColor tmp_color;
1537
1538                         if (parseColorString(parts[3], tmp_color, false))
1539                                 m_default_tooltip_bgcolor = tmp_color;
1540                         if (parseColorString(parts[4], tmp_color, false))
1541                                 m_default_tooltip_color = tmp_color;
1542                 }
1543                 return;
1544         }
1545         errorstream<< "Invalid listcolors element(" << parts.size() << "): '" << element << "'"  << std::endl;
1546 }
1547
1548 void GUIFormSpecMenu::parseTooltip(parserData* data, std::string element)
1549 {
1550         std::vector<std::string> parts = split(element,';');
1551         if (parts.size() == 2) {
1552                 std::string name = parts[0];
1553                 m_tooltips[narrow_to_wide(name)] = TooltipSpec (parts[1], m_default_tooltip_bgcolor, m_default_tooltip_color);
1554                 return;
1555         } else if (parts.size() == 4) {
1556                 std::string name = parts[0];
1557                 video::SColor tmp_color1, tmp_color2;
1558                 if ( parseColorString(parts[2], tmp_color1, false) && parseColorString(parts[3], tmp_color2, false) ) {
1559                         m_tooltips[narrow_to_wide(name)] = TooltipSpec (parts[1], tmp_color1, tmp_color2);
1560                         return;
1561                 }
1562         }
1563         errorstream<< "Invalid tooltip element(" << parts.size() << "): '" << element << "'"  << std::endl;
1564 }
1565
1566 bool GUIFormSpecMenu::parseVersionDirect(std::string data)
1567 {
1568         //some prechecks
1569         if (data == "")
1570                 return false;
1571
1572         std::vector<std::string> parts = split(data,'[');
1573
1574         if (parts.size() < 2) {
1575                 return false;
1576         }
1577
1578         if (parts[0] != "formspec_version") {
1579                 return false;
1580         }
1581
1582         if (is_number(parts[1])) {
1583                 m_formspec_version = mystoi(parts[1]);
1584                 return true;
1585         }
1586
1587         return false;
1588 }
1589
1590 bool GUIFormSpecMenu::parseSizeDirect(parserData* data, std::string element)
1591 {
1592         if (element == "")
1593                 return false;
1594
1595         std::vector<std::string> parts = split(element,'[');
1596
1597         if (parts.size() < 2)
1598                 return false;
1599
1600         std::string type = trim(parts[0]);
1601         std::string description = trim(parts[1]);
1602
1603         if (type != "size" && type != "invsize")
1604                 return false;
1605
1606         if (type == "invsize")
1607                 log_deprecated("Deprecated formspec element \"invsize\" is used");
1608
1609         parseSize(data, description);
1610
1611         return true;
1612 }
1613
1614 void GUIFormSpecMenu::parseElement(parserData* data, std::string element)
1615 {
1616         //some prechecks
1617         if (element == "")
1618                 return;
1619
1620         std::vector<std::string> parts = split(element,'[');
1621
1622         // ugly workaround to keep compatibility
1623         if (parts.size() > 2) {
1624                 if (trim(parts[0]) == "image") {
1625                         for (unsigned int i=2;i< parts.size(); i++) {
1626                                 parts[1] += "[" + parts[i];
1627                         }
1628                 }
1629                 else { return; }
1630         }
1631
1632         if (parts.size() < 2) {
1633                 return;
1634         }
1635
1636         std::string type = trim(parts[0]);
1637         std::string description = trim(parts[1]);
1638
1639         if (type == "list") {
1640                 parseList(data,description);
1641                 return;
1642         }
1643
1644         if (type == "checkbox") {
1645                 parseCheckbox(data,description);
1646                 return;
1647         }
1648
1649         if (type == "image") {
1650                 parseImage(data,description);
1651                 return;
1652         }
1653
1654         if (type == "item_image") {
1655                 parseItemImage(data,description);
1656                 return;
1657         }
1658
1659         if ((type == "button") || (type == "button_exit")) {
1660                 parseButton(data,description,type);
1661                 return;
1662         }
1663
1664         if (type == "background") {
1665                 parseBackground(data,description);
1666                 return;
1667         }
1668
1669         if (type == "tableoptions"){
1670                 parseTableOptions(data,description);
1671                 return;
1672         }
1673
1674         if (type == "tablecolumns"){
1675                 parseTableColumns(data,description);
1676                 return;
1677         }
1678
1679         if (type == "table"){
1680                 parseTable(data,description);
1681                 return;
1682         }
1683
1684         if (type == "textlist"){
1685                 parseTextList(data,description);
1686                 return;
1687         }
1688
1689         if (type == "dropdown"){
1690                 parseDropDown(data,description);
1691                 return;
1692         }
1693
1694         if (type == "pwdfield") {
1695                 parsePwdField(data,description);
1696                 return;
1697         }
1698
1699         if ((type == "field") || (type == "textarea")){
1700                 parseField(data,description,type);
1701                 return;
1702         }
1703
1704         if (type == "label") {
1705                 parseLabel(data,description);
1706                 return;
1707         }
1708
1709         if (type == "vertlabel") {
1710                 parseVertLabel(data,description);
1711                 return;
1712         }
1713
1714         if (type == "item_image_button") {
1715                 parseItemImageButton(data,description);
1716                 return;
1717         }
1718
1719         if ((type == "image_button") || (type == "image_button_exit")) {
1720                 parseImageButton(data,description,type);
1721                 return;
1722         }
1723
1724         if (type == "tabheader") {
1725                 parseTabHeader(data,description);
1726                 return;
1727         }
1728
1729         if (type == "box") {
1730                 parseBox(data,description);
1731                 return;
1732         }
1733
1734         if (type == "bgcolor") {
1735                 parseBackgroundColor(data,description);
1736                 return;
1737         }
1738
1739         if (type == "listcolors") {
1740                 parseListColors(data,description);
1741                 return;
1742         }
1743
1744         if (type == "tooltip") {
1745                 parseTooltip(data,description);
1746                 return;
1747         }
1748
1749         if (type == "scrollbar") {
1750                 parseScrollBar(data, description);
1751                 return;
1752         }
1753
1754         // Ignore others
1755         infostream
1756                 << "Unknown DrawSpec: type="<<type<<", data=\""<<description<<"\""
1757                 <<std::endl;
1758 }
1759
1760
1761
1762 void GUIFormSpecMenu::regenerateGui(v2u32 screensize)
1763 {
1764         /* useless to regenerate without a screensize */
1765         if ((screensize.X <= 0) || (screensize.Y <= 0)) {
1766                 return;
1767         }
1768
1769         parserData mydata;
1770
1771         //preserve tables
1772         for (u32 i = 0; i < m_tables.size(); ++i) {
1773                 std::wstring tablename = m_tables[i].first.fname;
1774                 GUITable *table = m_tables[i].second;
1775                 mydata.table_dyndata[tablename] = table->getDynamicData();
1776         }
1777
1778         //preserve focus
1779         gui::IGUIElement *focused_element = Environment->getFocus();
1780         if (focused_element && focused_element->getParent() == this) {
1781                 s32 focused_id = focused_element->getID();
1782                 if (focused_id > 257) {
1783                         for (u32 i=0; i<m_fields.size(); i++) {
1784                                 if (m_fields[i].fid == focused_id) {
1785                                         mydata.focused_fieldname =
1786                                                 m_fields[i].fname;
1787                                         break;
1788                                 }
1789                         }
1790                 }
1791         }
1792
1793         // Remove children
1794         removeChildren();
1795
1796         for (u32 i = 0; i < m_tables.size(); ++i) {
1797                 GUITable *table = m_tables[i].second;
1798                 table->drop();
1799         }
1800
1801         mydata.size= v2s32(100,100);
1802         mydata.screensize = screensize;
1803
1804         // Base position of contents of form
1805         mydata.basepos = getBasePos();
1806
1807         /* Convert m_init_draw_spec to m_inventorylists */
1808
1809         m_inventorylists.clear();
1810         m_images.clear();
1811         m_backgrounds.clear();
1812         m_itemimages.clear();
1813         m_tables.clear();
1814         m_checkboxes.clear();
1815         m_scrollbars.clear();
1816         m_fields.clear();
1817         m_boxes.clear();
1818         m_tooltips.clear();
1819
1820         // Set default values (fits old formspec values)
1821         m_bgcolor = video::SColor(140,0,0,0);
1822         m_bgfullscreen = false;
1823
1824         m_slotbg_n = video::SColor(255,128,128,128);
1825         m_slotbg_h = video::SColor(255,192,192,192);
1826
1827         m_default_tooltip_bgcolor = video::SColor(255,110,130,60);
1828         m_default_tooltip_color = video::SColor(255,255,255,255);
1829
1830         m_slotbordercolor = video::SColor(200,0,0,0);
1831         m_slotborder = false;
1832
1833         m_clipbackground = false;
1834         // Add tooltip
1835         {
1836                 assert(m_tooltip_element == NULL);
1837                 // Note: parent != this so that the tooltip isn't clipped by the menu rectangle
1838                 m_tooltip_element = Environment->addStaticText(L"",core::rect<s32>(0,0,110,18));
1839                 m_tooltip_element->enableOverrideColor(true);
1840                 m_tooltip_element->setBackgroundColor(m_default_tooltip_bgcolor);
1841                 m_tooltip_element->setDrawBackground(true);
1842                 m_tooltip_element->setDrawBorder(true);
1843                 m_tooltip_element->setOverrideColor(m_default_tooltip_color);
1844                 m_tooltip_element->setTextAlignment(gui::EGUIA_CENTER, gui::EGUIA_CENTER);
1845                 m_tooltip_element->setWordWrap(false);
1846                 //we're not parent so no autograb for this one!
1847                 m_tooltip_element->grab();
1848         }
1849
1850         std::vector<std::string> elements = split(m_formspec_string,']');
1851         unsigned int i = 0;
1852
1853         /* try to read version from first element only */
1854         if (elements.size() >= 1) {
1855                 if ( parseVersionDirect(elements[0]) ) {
1856                         i++;
1857                 }
1858         }
1859
1860         /* we need size first in order to calculate image scale */
1861         mydata.explicit_size = false;
1862         for (; i< elements.size(); i++) {
1863                 if (!parseSizeDirect(&mydata, elements[i])) {
1864                         break;
1865                 }
1866         }
1867
1868         if (mydata.explicit_size) {
1869                 // compute scaling for specified form size
1870                 if (m_lock) {
1871                         v2u32 current_screensize = m_device->getVideoDriver()->getScreenSize();
1872                         v2u32 delta = current_screensize - m_lockscreensize;
1873
1874                         if (current_screensize.Y > m_lockscreensize.Y)
1875                                 delta.Y /= 2;
1876                         else
1877                                 delta.Y = 0;
1878
1879                         if (current_screensize.X > m_lockscreensize.X)
1880                                 delta.X /= 2;
1881                         else
1882                                 delta.X = 0;
1883
1884                         offset = v2s32(delta.X,delta.Y);
1885
1886                         mydata.screensize = m_lockscreensize;
1887                 } else {
1888                         offset = v2s32(0,0);
1889                 }
1890
1891                 double gui_scaling = g_settings->getFloat("gui_scaling");
1892                 double screen_dpi = porting::getDisplayDensity() * 96;
1893
1894                 double use_imgsize;
1895                 if (m_lock) {
1896                         // In fixed-size mode, inventory image size
1897                         // is 0.53 inch multiplied by the gui_scaling
1898                         // config parameter.  This magic size is chosen
1899                         // to make the main menu (15.5 inventory images
1900                         // wide, including border) just fit into the
1901                         // default window (800 pixels wide) at 96 DPI
1902                         // and default scaling (1.00).
1903                         use_imgsize = 0.5555 * screen_dpi * gui_scaling;
1904                 } else {
1905                         // In variable-size mode, we prefer to make the
1906                         // inventory image size 1/15 of screen height,
1907                         // multiplied by the gui_scaling config parameter.
1908                         // If the preferred size won't fit the whole
1909                         // form on the screen, either horizontally or
1910                         // vertically, then we scale it down to fit.
1911                         // (The magic numbers in the computation of what
1912                         // fits arise from the scaling factors in the
1913                         // following stanza, including the form border,
1914                         // help text space, and 0.1 inventory slot spare.)
1915                         // However, a minimum size is also set, that
1916                         // the image size can't be less than 0.3 inch
1917                         // multiplied by gui_scaling, even if this means
1918                         // the form doesn't fit the screen.
1919                         double prefer_imgsize = mydata.screensize.Y / 15 *
1920                                                         gui_scaling;
1921                         double fitx_imgsize = mydata.screensize.X /
1922                                 ((5.0/4.0) * (0.5 + mydata.invsize.X));
1923                         double fity_imgsize = mydata.screensize.Y /
1924                                 ((15.0/13.0) * (0.85 * mydata.invsize.Y));
1925                         double screen_dpi = porting::getDisplayDensity() * 96;
1926                         double min_imgsize = 0.3 * screen_dpi * gui_scaling;
1927                         use_imgsize = MYMAX(min_imgsize, MYMIN(prefer_imgsize,
1928                                 MYMIN(fitx_imgsize, fity_imgsize)));
1929                 }
1930
1931                 // Everything else is scaled in proportion to the
1932                 // inventory image size.  The inventory slot spacing
1933                 // is 5/4 image size horizontally and 15/13 image size
1934                 // vertically.  The padding around the form (incorporating
1935                 // the border of the outer inventory slots) is 3/8
1936                 // image size.  Font height (baseline to baseline)
1937                 // is 2/5 vertical inventory slot spacing, and button
1938                 // half-height is 7/8 of font height.
1939                 imgsize = v2s32(use_imgsize, use_imgsize);
1940                 spacing = v2s32(use_imgsize*5.0/4, use_imgsize*15.0/13);
1941                 padding = v2s32(use_imgsize*3.0/8, use_imgsize*3.0/8);
1942                 m_btn_height = use_imgsize*15.0/13 * 0.35;
1943
1944                 m_font = g_fontengine->getFont();
1945
1946                 mydata.size = v2s32(
1947                         padding.X*2+spacing.X*(mydata.invsize.X-1.0)+imgsize.X,
1948                         padding.Y*2+spacing.Y*(mydata.invsize.Y-1.0)+imgsize.Y + m_btn_height*2.0/3.0
1949                 );
1950                 DesiredRect = mydata.rect = core::rect<s32>(
1951                                 mydata.screensize.X/2 - mydata.size.X/2 + offset.X,
1952                                 mydata.screensize.Y/2 - mydata.size.Y/2 + offset.Y,
1953                                 mydata.screensize.X/2 + mydata.size.X/2 + offset.X,
1954                                 mydata.screensize.Y/2 + mydata.size.Y/2 + offset.Y
1955                 );
1956         } else {
1957                 // Non-size[] form must consist only of text fields and
1958                 // implicit "Proceed" button.  Use default font, and
1959                 // temporary form size which will be recalculated below.
1960                 m_font = g_fontengine->getFont();
1961                 m_btn_height = font_line_height(m_font) * 0.875;
1962                 DesiredRect = core::rect<s32>(
1963                         mydata.screensize.X/2 - 580/2,
1964                         mydata.screensize.Y/2 - 300/2,
1965                         mydata.screensize.X/2 + 580/2,
1966                         mydata.screensize.Y/2 + 300/2
1967                 );
1968         }
1969         recalculateAbsolutePosition(false);
1970         mydata.basepos = getBasePos();
1971         m_tooltip_element->setOverrideFont(m_font);
1972
1973         gui::IGUISkin* skin = Environment->getSkin();
1974         assert(skin != NULL);
1975         gui::IGUIFont *old_font = skin->getFont();
1976         skin->setFont(m_font);
1977
1978         for (; i< elements.size(); i++) {
1979                 parseElement(&mydata, elements[i]);
1980         }
1981
1982         // If there are fields without explicit size[], add a "Proceed"
1983         // button and adjust size to fit all the fields.
1984         if (m_fields.size() && !mydata.explicit_size) {
1985                 mydata.rect = core::rect<s32>(
1986                                 mydata.screensize.X/2 - 580/2,
1987                                 mydata.screensize.Y/2 - 300/2,
1988                                 mydata.screensize.X/2 + 580/2,
1989                                 mydata.screensize.Y/2 + 240/2+(m_fields.size()*60)
1990                 );
1991                 DesiredRect = mydata.rect;
1992                 recalculateAbsolutePosition(false);
1993                 mydata.basepos = getBasePos();
1994
1995                 {
1996                         v2s32 pos = mydata.basepos;
1997                         pos.Y = ((m_fields.size()+2)*60);
1998
1999                         v2s32 size = DesiredRect.getSize();
2000                         mydata.rect =
2001                                         core::rect<s32>(size.X/2-70, pos.Y,
2002                                                         (size.X/2-70)+140, pos.Y + (m_btn_height*2));
2003                         wchar_t* text = wgettext("Proceed");
2004                         Environment->addButton(mydata.rect, this, 257, text);
2005                         delete[] text;
2006                 }
2007
2008         }
2009
2010         //set initial focus if parser didn't set it
2011         focused_element = Environment->getFocus();
2012         if (!focused_element
2013                         || !isMyChild(focused_element)
2014                         || focused_element->getType() == gui::EGUIET_TAB_CONTROL)
2015                 setInitialFocus();
2016
2017         skin->setFont(old_font);
2018 }
2019
2020 #ifdef __ANDROID__
2021 bool GUIFormSpecMenu::getAndroidUIInput()
2022 {
2023         /* no dialog shown */
2024         if (m_JavaDialogFieldName == L"") {
2025                 return false;
2026         }
2027
2028         /* still waiting */
2029         if (porting::getInputDialogState() == -1) {
2030                 return true;
2031         }
2032
2033         std::wstring fieldname = m_JavaDialogFieldName;
2034         m_JavaDialogFieldName = L"";
2035
2036         /* no value abort dialog processing */
2037         if (porting::getInputDialogState() != 0) {
2038                 return false;
2039         }
2040
2041         for(std::vector<FieldSpec>::iterator iter =  m_fields.begin();
2042                         iter != m_fields.end(); iter++) {
2043
2044                 if (iter->fname != fieldname) {
2045                         continue;
2046                 }
2047                 IGUIElement* tochange = getElementFromId(iter->fid);
2048
2049                 if (tochange == 0) {
2050                         return false;
2051                 }
2052
2053                 if (tochange->getType() != irr::gui::EGUIET_EDIT_BOX) {
2054                         return false;
2055                 }
2056
2057                 std::string text = porting::getInputDialogValue();
2058
2059                 ((gui::IGUIEditBox*) tochange)->
2060                         setText(narrow_to_wide(text).c_str());
2061         }
2062         return false;
2063 }
2064 #endif
2065
2066 GUIFormSpecMenu::ItemSpec GUIFormSpecMenu::getItemAtPos(v2s32 p) const
2067 {
2068         core::rect<s32> imgrect(0,0,imgsize.X,imgsize.Y);
2069
2070         for(u32 i=0; i<m_inventorylists.size(); i++)
2071         {
2072                 const ListDrawSpec &s = m_inventorylists[i];
2073
2074                 for(s32 i=0; i<s.geom.X*s.geom.Y; i++) {
2075                         s32 item_i = i + s.start_item_i;
2076                         s32 x = (i%s.geom.X) * spacing.X;
2077                         s32 y = (i/s.geom.X) * spacing.Y;
2078                         v2s32 p0(x,y);
2079                         core::rect<s32> rect = imgrect + s.pos + p0;
2080                         if(rect.isPointInside(p))
2081                         {
2082                                 return ItemSpec(s.inventoryloc, s.listname, item_i);
2083                         }
2084                 }
2085         }
2086
2087         return ItemSpec(InventoryLocation(), "", -1);
2088 }
2089
2090 void GUIFormSpecMenu::drawList(const ListDrawSpec &s, int phase)
2091 {
2092         video::IVideoDriver* driver = Environment->getVideoDriver();
2093
2094         Inventory *inv = m_invmgr->getInventory(s.inventoryloc);
2095         if(!inv){
2096                 infostream<<"GUIFormSpecMenu::drawList(): WARNING: "
2097                                 <<"The inventory location "
2098                                 <<"\""<<s.inventoryloc.dump()<<"\" doesn't exist"
2099                                 <<std::endl;
2100                 return;
2101         }
2102         InventoryList *ilist = inv->getList(s.listname);
2103         if(!ilist){
2104                 infostream<<"GUIFormSpecMenu::drawList(): WARNING: "
2105                                 <<"The inventory list \""<<s.listname<<"\" @ \""
2106                                 <<s.inventoryloc.dump()<<"\" doesn't exist"
2107                                 <<std::endl;
2108                 return;
2109         }
2110
2111         core::rect<s32> imgrect(0,0,imgsize.X,imgsize.Y);
2112
2113         for(s32 i=0; i<s.geom.X*s.geom.Y; i++)
2114         {
2115                 s32 item_i = i + s.start_item_i;
2116                 if(item_i >= (s32) ilist->getSize())
2117                         break;
2118                 s32 x = (i%s.geom.X) * spacing.X;
2119                 s32 y = (i/s.geom.X) * spacing.Y;
2120                 v2s32 p(x,y);
2121                 core::rect<s32> rect = imgrect + s.pos + p;
2122                 ItemStack item;
2123                 if(ilist)
2124                         item = ilist->getItem(item_i);
2125
2126                 bool selected = m_selected_item
2127                         && m_invmgr->getInventory(m_selected_item->inventoryloc) == inv
2128                         && m_selected_item->listname == s.listname
2129                         && m_selected_item->i == item_i;
2130                 bool hovering = rect.isPointInside(m_pointer);
2131
2132                 if(phase == 0)
2133                 {
2134                         if(hovering)
2135                                 driver->draw2DRectangle(m_slotbg_h, rect, &AbsoluteClippingRect);
2136                         else
2137                                 driver->draw2DRectangle(m_slotbg_n, rect, &AbsoluteClippingRect);
2138                 }
2139
2140                 //Draw inv slot borders
2141                 if (m_slotborder) {
2142                         s32 x1 = rect.UpperLeftCorner.X;
2143                         s32 y1 = rect.UpperLeftCorner.Y;
2144                         s32 x2 = rect.LowerRightCorner.X;
2145                         s32 y2 = rect.LowerRightCorner.Y;
2146                         s32 border = 1;
2147                         driver->draw2DRectangle(m_slotbordercolor,
2148                                 core::rect<s32>(v2s32(x1 - border, y1 - border),
2149                                                                 v2s32(x2 + border, y1)), NULL);
2150                         driver->draw2DRectangle(m_slotbordercolor,
2151                                 core::rect<s32>(v2s32(x1 - border, y2),
2152                                                                 v2s32(x2 + border, y2 + border)), NULL);
2153                         driver->draw2DRectangle(m_slotbordercolor,
2154                                 core::rect<s32>(v2s32(x1 - border, y1),
2155                                                                 v2s32(x1, y2)), NULL);
2156                         driver->draw2DRectangle(m_slotbordercolor,
2157                                 core::rect<s32>(v2s32(x2, y1),
2158                                                                 v2s32(x2 + border, y2)), NULL);
2159                 }
2160
2161                 if(phase == 1)
2162                 {
2163                         // Draw item stack
2164                         if(selected)
2165                         {
2166                                 item.takeItem(m_selected_amount);
2167                         }
2168                         if(!item.empty())
2169                         {
2170                                 drawItemStack(driver, m_font, item,
2171                                                 rect, &AbsoluteClippingRect, m_gamedef);
2172                         }
2173
2174                         // Draw tooltip
2175                         std::string tooltip_text = "";
2176                         if (hovering && !m_selected_item)
2177                                 tooltip_text = item.getDefinition(m_gamedef->idef()).description;
2178                         if (tooltip_text != "") {
2179                                 std::vector<std::string> tt_rows = str_split(tooltip_text, '\n');
2180                                 m_tooltip_element->setBackgroundColor(m_default_tooltip_bgcolor);
2181                                 m_tooltip_element->setOverrideColor(m_default_tooltip_color);
2182                                 m_tooltip_element->setVisible(true);
2183                                 this->bringToFront(m_tooltip_element);
2184                                 m_tooltip_element->setText(narrow_to_wide(tooltip_text).c_str());
2185                                 s32 tooltip_width = m_tooltip_element->getTextWidth() + m_btn_height;
2186                                 s32 tooltip_height = m_tooltip_element->getTextHeight() * tt_rows.size() + 5;
2187                                 v2u32 screenSize = driver->getScreenSize();
2188                                 int tooltip_offset_x = m_btn_height;
2189                                 int tooltip_offset_y = m_btn_height;
2190 #ifdef __ANDROID__
2191                                 tooltip_offset_x *= 3;
2192                                 tooltip_offset_y  = 0;
2193                                 if (m_pointer.X > (s32)screenSize.X / 2)
2194                                         tooltip_offset_x = (tooltip_offset_x + tooltip_width) * -1;
2195 #endif
2196                                 s32 tooltip_x = m_pointer.X + tooltip_offset_x;
2197                                 s32 tooltip_y = m_pointer.Y + tooltip_offset_y;
2198                                 if (tooltip_x + tooltip_width > (s32)screenSize.X)
2199                                         tooltip_x = (s32)screenSize.X - tooltip_width  - m_btn_height;
2200                                 if (tooltip_y + tooltip_height > (s32)screenSize.Y)
2201                                         tooltip_y = (s32)screenSize.Y - tooltip_height - m_btn_height;
2202                                 m_tooltip_element->setRelativePosition(core::rect<s32>(
2203                                                 core::position2d<s32>(tooltip_x, tooltip_y),
2204                                                 core::dimension2d<s32>(tooltip_width, tooltip_height)));
2205                         }
2206                 }
2207         }
2208 }
2209
2210 void GUIFormSpecMenu::drawSelectedItem()
2211 {
2212         if(!m_selected_item)
2213                 return;
2214
2215         video::IVideoDriver* driver = Environment->getVideoDriver();
2216
2217         Inventory *inv = m_invmgr->getInventory(m_selected_item->inventoryloc);
2218         assert(inv);
2219         InventoryList *list = inv->getList(m_selected_item->listname);
2220         assert(list);
2221         ItemStack stack = list->getItem(m_selected_item->i);
2222         stack.count = m_selected_amount;
2223
2224         core::rect<s32> imgrect(0,0,imgsize.X,imgsize.Y);
2225         core::rect<s32> rect = imgrect + (m_pointer - imgrect.getCenter());
2226         drawItemStack(driver, m_font, stack, rect, NULL, m_gamedef);
2227 }
2228
2229 void GUIFormSpecMenu::drawMenu()
2230 {
2231         if(m_form_src){
2232                 std::string newform = m_form_src->getForm();
2233                 if(newform != m_formspec_string){
2234                         m_formspec_string = newform;
2235                         regenerateGui(m_screensize_old);
2236                 }
2237         }
2238
2239         gui::IGUISkin* skin = Environment->getSkin();
2240         assert(skin != NULL);
2241         gui::IGUIFont *old_font = skin->getFont();
2242         skin->setFont(m_font);
2243
2244         updateSelectedItem();
2245
2246         video::IVideoDriver* driver = Environment->getVideoDriver();
2247
2248         v2u32 screenSize = driver->getScreenSize();
2249         core::rect<s32> allbg(0, 0, screenSize.X ,      screenSize.Y);
2250         if (m_bgfullscreen)
2251                 driver->draw2DRectangle(m_bgcolor, allbg, &allbg);
2252         else
2253                 driver->draw2DRectangle(m_bgcolor, AbsoluteRect, &AbsoluteClippingRect);
2254
2255         m_tooltip_element->setVisible(false);
2256
2257         /*
2258                 Draw backgrounds
2259         */
2260         for(u32 i=0; i<m_backgrounds.size(); i++)
2261         {
2262                 const ImageDrawSpec &spec = m_backgrounds[i];
2263                 video::ITexture *texture = m_tsrc->getTexture(spec.name);
2264
2265                 if (texture != 0) {
2266                         // Image size on screen
2267                         core::rect<s32> imgrect(0, 0, spec.geom.X, spec.geom.Y);
2268                         // Image rectangle on screen
2269                         core::rect<s32> rect = imgrect + spec.pos;
2270
2271                         if (m_clipbackground) {
2272                                 core::dimension2d<s32> absrec_size = AbsoluteRect.getSize();
2273                                 rect = core::rect<s32>(AbsoluteRect.UpperLeftCorner.X - spec.pos.X,
2274                                                                         AbsoluteRect.UpperLeftCorner.Y - spec.pos.Y,
2275                                                                         AbsoluteRect.UpperLeftCorner.X + absrec_size.Width + spec.pos.X,
2276                                                                         AbsoluteRect.UpperLeftCorner.Y + absrec_size.Height + spec.pos.Y);
2277                         }
2278
2279                         const video::SColor color(255,255,255,255);
2280                         const video::SColor colors[] = {color,color,color,color};
2281                         driver->draw2DImage(texture, rect,
2282                                 core::rect<s32>(core::position2d<s32>(0,0),
2283                                                 core::dimension2di(texture->getOriginalSize())),
2284                                 NULL/*&AbsoluteClippingRect*/, colors, true);
2285                 }
2286                 else {
2287                         errorstream << "GUIFormSpecMenu::drawMenu() Draw backgrounds unable to load texture:" << std::endl;
2288                         errorstream << "\t" << spec.name << std::endl;
2289                 }
2290         }
2291
2292         /*
2293                 Draw Boxes
2294         */
2295         for(u32 i=0; i<m_boxes.size(); i++)
2296         {
2297                 const BoxDrawSpec &spec = m_boxes[i];
2298
2299                 irr::video::SColor todraw = spec.color;
2300
2301                 todraw.setAlpha(140);
2302
2303                 core::rect<s32> rect(spec.pos.X,spec.pos.Y,
2304                                                         spec.pos.X + spec.geom.X,spec.pos.Y + spec.geom.Y);
2305
2306                 driver->draw2DRectangle(todraw, rect, 0);
2307         }
2308         /*
2309                 Draw images
2310         */
2311         for(u32 i=0; i<m_images.size(); i++)
2312         {
2313                 const ImageDrawSpec &spec = m_images[i];
2314                 video::ITexture *texture = m_tsrc->getTexture(spec.name);
2315
2316                 if (texture != 0) {
2317                         const core::dimension2d<u32>& img_origsize = texture->getOriginalSize();
2318                         // Image size on screen
2319                         core::rect<s32> imgrect;
2320
2321                         if (spec.scale)
2322                                 imgrect = core::rect<s32>(0,0,spec.geom.X, spec.geom.Y);
2323                         else {
2324
2325                                 imgrect = core::rect<s32>(0,0,img_origsize.Width,img_origsize.Height);
2326                         }
2327                         // Image rectangle on screen
2328                         core::rect<s32> rect = imgrect + spec.pos;
2329                         const video::SColor color(255,255,255,255);
2330                         const video::SColor colors[] = {color,color,color,color};
2331                         driver->draw2DImage(texture, rect,
2332                                 core::rect<s32>(core::position2d<s32>(0,0),img_origsize),
2333                                 NULL/*&AbsoluteClippingRect*/, colors, true);
2334                 }
2335                 else {
2336                         errorstream << "GUIFormSpecMenu::drawMenu() Draw images unable to load texture:" << std::endl;
2337                         errorstream << "\t" << spec.name << std::endl;
2338                 }
2339         }
2340
2341         /*
2342                 Draw item images
2343         */
2344         for(u32 i=0; i<m_itemimages.size(); i++)
2345         {
2346                 if (m_gamedef == 0)
2347                         break;
2348
2349                 const ImageDrawSpec &spec = m_itemimages[i];
2350                 IItemDefManager *idef = m_gamedef->idef();
2351                 ItemStack item;
2352                 item.deSerialize(spec.name, idef);
2353                 video::ITexture *texture = idef->getInventoryTexture(item.getDefinition(idef).name, m_gamedef);
2354                 // Image size on screen
2355                 core::rect<s32> imgrect(0, 0, spec.geom.X, spec.geom.Y);
2356                 // Image rectangle on screen
2357                 core::rect<s32> rect = imgrect + spec.pos;
2358                 const video::SColor color(255,255,255,255);
2359                 const video::SColor colors[] = {color,color,color,color};
2360                 driver->draw2DImage(texture, rect,
2361                         core::rect<s32>(core::position2d<s32>(0,0),
2362                                         core::dimension2di(texture->getOriginalSize())),
2363                         NULL/*&AbsoluteClippingRect*/, colors, true);
2364         }
2365
2366         /*
2367                 Draw items
2368                 Phase 0: Item slot rectangles
2369                 Phase 1: Item images; prepare tooltip
2370         */
2371         int start_phase=0;
2372         for(int phase=start_phase; phase<=1; phase++)
2373         for(u32 i=0; i<m_inventorylists.size(); i++)
2374         {
2375                 drawList(m_inventorylists[i], phase);
2376         }
2377
2378         /*
2379                 Call base class
2380         */
2381         gui::IGUIElement::draw();
2382
2383 /* TODO find way to show tooltips on touchscreen */
2384 #ifndef HAVE_TOUCHSCREENGUI
2385         m_pointer = m_device->getCursorControl()->getPosition();
2386 #endif
2387
2388         /*
2389                 Draw fields/buttons tooltips
2390         */
2391         gui::IGUIElement *hovered =
2392                         Environment->getRootGUIElement()->getElementFromPoint(m_pointer);
2393
2394         if (hovered != NULL) {
2395                 s32 id = hovered->getID();
2396
2397                 u32 delta = 0;
2398                 if (id == -1) {
2399                         m_old_tooltip_id = id;
2400                         m_old_tooltip = "";
2401                 } else {
2402                         if (id == m_old_tooltip_id) {
2403                                 delta = porting::getDeltaMs(m_hovered_time, getTimeMs());
2404                         } else {
2405                                 m_hovered_time = getTimeMs();
2406                                 m_old_tooltip_id = id;
2407                         }
2408                 }
2409
2410                 if (id != -1 && delta >= m_tooltip_show_delay) {
2411                         for(std::vector<FieldSpec>::iterator iter =  m_fields.begin();
2412                                         iter != m_fields.end(); iter++) {
2413                                 if ( (iter->fid == id) && (m_tooltips[iter->fname].tooltip != "") ){
2414                                         if (m_old_tooltip != m_tooltips[iter->fname].tooltip) {
2415                                                 m_old_tooltip = m_tooltips[iter->fname].tooltip;
2416                                                 m_tooltip_element->setText(narrow_to_wide(m_tooltips[iter->fname].tooltip).c_str());
2417                                                 std::vector<std::string> tt_rows = str_split(m_tooltips[iter->fname].tooltip, '\n');
2418                                                 s32 tooltip_width = m_tooltip_element->getTextWidth() + m_btn_height;
2419                                                 s32 tooltip_height = m_tooltip_element->getTextHeight() * tt_rows.size() + 5;
2420                                                 int tooltip_offset_x = m_btn_height;
2421                                                 int tooltip_offset_y = m_btn_height;
2422 #ifdef __ANDROID__
2423                                                 tooltip_offset_x *= 3;
2424                                                 tooltip_offset_y  = 0;
2425                                                 if (m_pointer.X > (s32)screenSize.X / 2)
2426                                                         tooltip_offset_x = (tooltip_offset_x + tooltip_width) * -1;
2427 #endif
2428                                                 s32 tooltip_x = m_pointer.X + tooltip_offset_x;
2429                                                 s32 tooltip_y = m_pointer.Y + tooltip_offset_y;
2430                                                 if (tooltip_x + tooltip_width > (s32)screenSize.X)
2431                                                         tooltip_x = (s32)screenSize.X - tooltip_width  - m_btn_height;
2432                                                 if (tooltip_y + tooltip_height > (s32)screenSize.Y)
2433                                                         tooltip_y = (s32)screenSize.Y - tooltip_height - m_btn_height;
2434                                                 m_tooltip_element->setRelativePosition(core::rect<s32>(
2435                                                 core::position2d<s32>(tooltip_x, tooltip_y),
2436                                                 core::dimension2d<s32>(tooltip_width, tooltip_height)));
2437                                         }
2438                                         m_tooltip_element->setBackgroundColor(m_tooltips[iter->fname].bgcolor);
2439                                         m_tooltip_element->setOverrideColor(m_tooltips[iter->fname].color);
2440                                         m_tooltip_element->setVisible(true);
2441                                         this->bringToFront(m_tooltip_element);
2442                                         break;
2443                                 }
2444                         }
2445                 }
2446         }
2447
2448         /*
2449                 Draw dragged item stack
2450         */
2451         drawSelectedItem();
2452
2453         skin->setFont(old_font);
2454 }
2455
2456 void GUIFormSpecMenu::updateSelectedItem()
2457 {
2458         // If the selected stack has become empty for some reason, deselect it.
2459         // If the selected stack has become inaccessible, deselect it.
2460         // If the selected stack has become smaller, adjust m_selected_amount.
2461         ItemStack selected = verifySelectedItem();
2462
2463         // WARNING: BLACK MAGIC
2464         // See if there is a stack suited for our current guess.
2465         // If such stack does not exist, clear the guess.
2466         if(m_selected_content_guess.name != "" &&
2467                         selected.name == m_selected_content_guess.name &&
2468                         selected.count == m_selected_content_guess.count){
2469                 // Selected item fits the guess. Skip the black magic.
2470         }
2471         else if(m_selected_content_guess.name != ""){
2472                 bool found = false;
2473                 for(u32 i=0; i<m_inventorylists.size() && !found; i++){
2474                         const ListDrawSpec &s = m_inventorylists[i];
2475                         Inventory *inv = m_invmgr->getInventory(s.inventoryloc);
2476                         if(!inv)
2477                                 continue;
2478                         InventoryList *list = inv->getList(s.listname);
2479                         if(!list)
2480                                 continue;
2481                         for(s32 i=0; i<s.geom.X*s.geom.Y && !found; i++){
2482                                 u32 item_i = i + s.start_item_i;
2483                                 if(item_i >= list->getSize())
2484                                         continue;
2485                                 ItemStack stack = list->getItem(item_i);
2486                                 if(stack.name == m_selected_content_guess.name &&
2487                                                 stack.count == m_selected_content_guess.count){
2488                                         found = true;
2489                                         infostream<<"Client: Changing selected content guess to "
2490                                                         <<s.inventoryloc.dump()<<" "<<s.listname
2491                                                         <<" "<<item_i<<std::endl;
2492                                         delete m_selected_item;
2493                                         m_selected_item = new ItemSpec(s.inventoryloc, s.listname, item_i);
2494                                         m_selected_amount = stack.count;
2495                                 }
2496                         }
2497                 }
2498                 if(!found){
2499                         infostream<<"Client: Discarding selected content guess: "
2500                                         <<m_selected_content_guess.getItemString()<<std::endl;
2501                         m_selected_content_guess.name = "";
2502                 }
2503         }
2504
2505         // If craftresult is nonempty and nothing else is selected, select it now.
2506         if(!m_selected_item)
2507         {
2508                 for(u32 i=0; i<m_inventorylists.size(); i++)
2509                 {
2510                         const ListDrawSpec &s = m_inventorylists[i];
2511                         if(s.listname == "craftpreview")
2512                         {
2513                                 Inventory *inv = m_invmgr->getInventory(s.inventoryloc);
2514                                 InventoryList *list = inv->getList("craftresult");
2515                                 if(list && list->getSize() >= 1 && !list->getItem(0).empty())
2516                                 {
2517                                         m_selected_item = new ItemSpec;
2518                                         m_selected_item->inventoryloc = s.inventoryloc;
2519                                         m_selected_item->listname = "craftresult";
2520                                         m_selected_item->i = 0;
2521                                         m_selected_amount = 0;
2522                                         m_selected_dragging = false;
2523                                         break;
2524                                 }
2525                         }
2526                 }
2527         }
2528
2529         // If craftresult is selected, keep the whole stack selected
2530         if(m_selected_item && m_selected_item->listname == "craftresult")
2531         {
2532                 m_selected_amount = verifySelectedItem().count;
2533         }
2534 }
2535
2536 ItemStack GUIFormSpecMenu::verifySelectedItem()
2537 {
2538         // If the selected stack has become empty for some reason, deselect it.
2539         // If the selected stack has become inaccessible, deselect it.
2540         // If the selected stack has become smaller, adjust m_selected_amount.
2541         // Return the selected stack.
2542
2543         if(m_selected_item)
2544         {
2545                 if(m_selected_item->isValid())
2546                 {
2547                         Inventory *inv = m_invmgr->getInventory(m_selected_item->inventoryloc);
2548                         if(inv)
2549                         {
2550                                 InventoryList *list = inv->getList(m_selected_item->listname);
2551                                 if(list && (u32) m_selected_item->i < list->getSize())
2552                                 {
2553                                         ItemStack stack = list->getItem(m_selected_item->i);
2554                                         if(m_selected_amount > stack.count)
2555                                                 m_selected_amount = stack.count;
2556                                         if(!stack.empty())
2557                                                 return stack;
2558                                 }
2559                         }
2560                 }
2561
2562                 // selection was not valid
2563                 delete m_selected_item;
2564                 m_selected_item = NULL;
2565                 m_selected_amount = 0;
2566                 m_selected_dragging = false;
2567         }
2568         return ItemStack();
2569 }
2570
2571 void GUIFormSpecMenu::acceptInput(FormspecQuitMode quitmode=quit_mode_no)
2572 {
2573         if(m_text_dst)
2574         {
2575                 std::map<std::string, std::string> fields;
2576
2577                 if (quitmode == quit_mode_accept) {
2578                         fields["quit"] = "true";
2579                 }
2580
2581                 if (quitmode == quit_mode_cancel) {
2582                         fields["quit"] = "true";
2583                         m_text_dst->gotText(fields);
2584                         return;
2585                 }
2586
2587                 if (current_keys_pending.key_down) {
2588                         fields["key_down"] = "true";
2589                         current_keys_pending.key_down = false;
2590                 }
2591
2592                 if (current_keys_pending.key_up) {
2593                         fields["key_up"] = "true";
2594                         current_keys_pending.key_up = false;
2595                 }
2596
2597                 if (current_keys_pending.key_enter) {
2598                         fields["key_enter"] = "true";
2599                         current_keys_pending.key_enter = false;
2600                 }
2601
2602                 if (current_keys_pending.key_escape) {
2603                         fields["key_escape"] = "true";
2604                         current_keys_pending.key_escape = false;
2605                 }
2606
2607                 for(unsigned int i=0; i<m_fields.size(); i++) {
2608                         const FieldSpec &s = m_fields[i];
2609                         if(s.send) {
2610                                 std::string name  = wide_to_narrow(s.fname);
2611                                 if(s.ftype == f_Button) {
2612                                         fields[name] = wide_to_narrow(s.flabel);
2613                                 }
2614                                 else if(s.ftype == f_Table) {
2615                                         GUITable *table = getTable(s.fname);
2616                                         if (table) {
2617                                                 fields[name] = table->checkEvent();
2618                                         }
2619                                 }
2620                                 else if(s.ftype == f_DropDown) {
2621                                         // no dynamic cast possible due to some distributions shipped
2622                                         // without rtti support in irrlicht
2623                                         IGUIElement * element = getElementFromId(s.fid);
2624                                         gui::IGUIComboBox *e = NULL;
2625                                         if ((element) && (element->getType() == gui::EGUIET_COMBO_BOX)) {
2626                                                 e = static_cast<gui::IGUIComboBox*>(element);
2627                                         }
2628                                         s32 selected = e->getSelected();
2629                                         if (selected >= 0) {
2630                                                 fields[name] =
2631                                                         wide_to_narrow(e->getItem(selected));
2632                                         }
2633                                 }
2634                                 else if (s.ftype == f_TabHeader) {
2635                                         // no dynamic cast possible due to some distributions shipped
2636                                         // without rtti support in irrlicht
2637                                         IGUIElement * element = getElementFromId(s.fid);
2638                                         gui::IGUITabControl *e = NULL;
2639                                         if ((element) && (element->getType() == gui::EGUIET_TAB_CONTROL)) {
2640                                                 e = static_cast<gui::IGUITabControl*>(element);
2641                                         }
2642
2643                                         if (e != 0) {
2644                                                 std::stringstream ss;
2645                                                 ss << (e->getActiveTab() +1);
2646                                                 fields[name] = ss.str();
2647                                         }
2648                                 }
2649                                 else if (s.ftype == f_CheckBox) {
2650                                         // no dynamic cast possible due to some distributions shipped
2651                                         // without rtti support in irrlicht
2652                                         IGUIElement * element = getElementFromId(s.fid);
2653                                         gui::IGUICheckBox *e = NULL;
2654                                         if ((element) && (element->getType() == gui::EGUIET_CHECK_BOX)) {
2655                                                 e = static_cast<gui::IGUICheckBox*>(element);
2656                                         }
2657
2658                                         if (e != 0) {
2659                                                 if (e->isChecked())
2660                                                         fields[name] = "true";
2661                                                 else
2662                                                         fields[name] = "false";
2663                                         }
2664                                 }
2665                                 else if (s.ftype == f_ScrollBar) {
2666                                         // no dynamic cast possible due to some distributions shipped
2667                                         // without rtti support in irrlicht
2668                                         IGUIElement * element = getElementFromId(s.fid);
2669                                         gui::IGUIScrollBar *e = NULL;
2670                                         if ((element) && (element->getType() == gui::EGUIET_SCROLL_BAR)) {
2671                                                 e = static_cast<gui::IGUIScrollBar*>(element);
2672                                         }
2673
2674                                         if (e != 0) {
2675                                                 std::stringstream os;
2676                                                 os << e->getPos();
2677                                                 if (s.fdefault == L"Changed")
2678                                                         fields[name] = "CHG:" + os.str();
2679                                                 else
2680                                                         fields[name] = "VAL:" + os.str();
2681                                         }
2682                                 }
2683                                 else
2684                                 {
2685                                         IGUIElement* e = getElementFromId(s.fid);
2686                                         if(e != NULL) {
2687                                                 fields[name] = wide_to_narrow(e->getText());
2688                                         }
2689                                 }
2690                         }
2691                 }
2692
2693                 m_text_dst->gotText(fields);
2694         }
2695 }
2696
2697 static bool isChild(gui::IGUIElement * tocheck, gui::IGUIElement * parent)
2698 {
2699         while(tocheck != NULL) {
2700                 if (tocheck == parent) {
2701                         return true;
2702                 }
2703                 tocheck = tocheck->getParent();
2704         }
2705         return false;
2706 }
2707
2708 bool GUIFormSpecMenu::preprocessEvent(const SEvent& event)
2709 {
2710         // The IGUITabControl renders visually using the skin's selected
2711         // font, which we override for the duration of form drawing,
2712         // but computes tab hotspots based on how it would have rendered
2713         // using the font that is selected at the time of button release.
2714         // To make these two consistent, temporarily override the skin's
2715         // font while the IGUITabControl is processing the event.
2716         if (event.EventType == EET_MOUSE_INPUT_EVENT &&
2717                         event.MouseInput.Event == EMIE_LMOUSE_LEFT_UP) {
2718                 s32 x = event.MouseInput.X;
2719                 s32 y = event.MouseInput.Y;
2720                 gui::IGUIElement *hovered =
2721                         Environment->getRootGUIElement()->getElementFromPoint(
2722                                 core::position2d<s32>(x, y));
2723                 if (hovered && isMyChild(hovered) &&
2724                                 hovered->getType() == gui::EGUIET_TAB_CONTROL) {
2725                         gui::IGUISkin* skin = Environment->getSkin();
2726                         assert(skin != NULL);
2727                         gui::IGUIFont *old_font = skin->getFont();
2728                         skin->setFont(m_font);
2729                         bool retval = hovered->OnEvent(event);
2730                         skin->setFont(old_font);
2731                         return retval;
2732                 }
2733         }
2734
2735         // Fix Esc/Return key being eaten by checkboxen and tables
2736         if(event.EventType==EET_KEY_INPUT_EVENT) {
2737                 KeyPress kp(event.KeyInput);
2738                 if (kp == EscapeKey || kp == CancelKey
2739                                 || kp == getKeySetting("keymap_inventory")
2740                                 || event.KeyInput.Key==KEY_RETURN) {
2741                         gui::IGUIElement *focused = Environment->getFocus();
2742                         if (focused && isMyChild(focused) &&
2743                                         (focused->getType() == gui::EGUIET_LIST_BOX ||
2744                                          focused->getType() == gui::EGUIET_CHECK_BOX)) {
2745                                 OnEvent(event);
2746                                 return true;
2747                         }
2748                 }
2749         }
2750         // Mouse wheel events: send to hovered element instead of focused
2751         if(event.EventType==EET_MOUSE_INPUT_EVENT
2752                         && event.MouseInput.Event == EMIE_MOUSE_WHEEL) {
2753                 s32 x = event.MouseInput.X;
2754                 s32 y = event.MouseInput.Y;
2755                 gui::IGUIElement *hovered =
2756                         Environment->getRootGUIElement()->getElementFromPoint(
2757                                 core::position2d<s32>(x, y));
2758                 if (hovered && isMyChild(hovered)) {
2759                         hovered->OnEvent(event);
2760                         return true;
2761                 }
2762         }
2763
2764         if (event.EventType == EET_MOUSE_INPUT_EVENT) {
2765                 s32 x = event.MouseInput.X;
2766                 s32 y = event.MouseInput.Y;
2767                 gui::IGUIElement *hovered =
2768                         Environment->getRootGUIElement()->getElementFromPoint(
2769                                 core::position2d<s32>(x, y));
2770                 if (event.MouseInput.Event == EMIE_LMOUSE_PRESSED_DOWN) {
2771                         m_old_tooltip_id = -1;
2772                         m_old_tooltip = "";
2773                 }
2774                 if (!isChild(hovered,this)) {
2775                         if (DoubleClickDetection(event)) {
2776                                 return true;
2777                         }
2778                 }
2779         }
2780
2781         #ifdef __ANDROID__
2782         // display software keyboard when clicking edit boxes
2783         if (event.EventType == EET_MOUSE_INPUT_EVENT
2784                         && event.MouseInput.Event == EMIE_LMOUSE_PRESSED_DOWN) {
2785                 gui::IGUIElement *hovered =
2786                         Environment->getRootGUIElement()->getElementFromPoint(
2787                                 core::position2d<s32>(event.MouseInput.X, event.MouseInput.Y));
2788                 if ((hovered) && (hovered->getType() == irr::gui::EGUIET_EDIT_BOX)) {
2789                         bool retval = hovered->OnEvent(event);
2790                         if (retval) {
2791                                 Environment->setFocus(hovered);
2792                         }
2793                         m_JavaDialogFieldName = getNameByID(hovered->getID());
2794                         std::string message   = gettext("Enter ");
2795                         std::string label     = wide_to_narrow(getLabelByID(hovered->getID()));
2796                         if (label == "") {
2797                                 label = "text";
2798                         }
2799                         message += gettext(label) + ":";
2800
2801                         /* single line text input */
2802                         int type = 2;
2803
2804                         /* multi line text input */
2805                         if (((gui::IGUIEditBox*) hovered)->isMultiLineEnabled()) {
2806                                 type = 1;
2807                         }
2808
2809                         /* passwords are always single line */
2810                         if (((gui::IGUIEditBox*) hovered)->isPasswordBox()) {
2811                                 type = 3;
2812                         }
2813
2814                         porting::showInputDialog(gettext("ok"), "",
2815                                         wide_to_narrow(((gui::IGUIEditBox*) hovered)->getText()),
2816                                         type);
2817                         return retval;
2818                 }
2819         }
2820
2821         if (event.EventType == EET_TOUCH_INPUT_EVENT)
2822         {
2823                 SEvent translated;
2824                 memset(&translated, 0, sizeof(SEvent));
2825                 translated.EventType   = EET_MOUSE_INPUT_EVENT;
2826                 gui::IGUIElement* root = Environment->getRootGUIElement();
2827
2828                 if (!root) {
2829                         errorstream
2830                         << "GUIFormSpecMenu::preprocessEvent unable to get root element"
2831                         << std::endl;
2832                         return false;
2833                 }
2834                 gui::IGUIElement* hovered = root->getElementFromPoint(
2835                         core::position2d<s32>(
2836                                         event.TouchInput.X,
2837                                         event.TouchInput.Y));
2838
2839                 translated.MouseInput.X = event.TouchInput.X;
2840                 translated.MouseInput.Y = event.TouchInput.Y;
2841                 translated.MouseInput.Control = false;
2842
2843                 bool dont_send_event = false;
2844
2845                 if (event.TouchInput.touchedCount == 1) {
2846                         switch (event.TouchInput.Event) {
2847                                 case ETIE_PRESSED_DOWN:
2848                                         m_pointer = v2s32(event.TouchInput.X,event.TouchInput.Y);
2849                                         translated.MouseInput.Event = EMIE_LMOUSE_PRESSED_DOWN;
2850                                         translated.MouseInput.ButtonStates = EMBSM_LEFT;
2851                                         m_down_pos = m_pointer;
2852                                         break;
2853                                 case ETIE_MOVED:
2854                                         m_pointer = v2s32(event.TouchInput.X,event.TouchInput.Y);
2855                                         translated.MouseInput.Event = EMIE_MOUSE_MOVED;
2856                                         translated.MouseInput.ButtonStates = EMBSM_LEFT;
2857                                         break;
2858                                 case ETIE_LEFT_UP:
2859                                         translated.MouseInput.Event = EMIE_LMOUSE_LEFT_UP;
2860                                         translated.MouseInput.ButtonStates = 0;
2861                                         hovered = root->getElementFromPoint(m_down_pos);
2862                                         /* we don't have a valid pointer element use last
2863                                          * known pointer pos */
2864                                         translated.MouseInput.X = m_pointer.X;
2865                                         translated.MouseInput.Y = m_pointer.Y;
2866
2867                                         /* reset down pos */
2868                                         m_down_pos = v2s32(0,0);
2869                                         break;
2870                                 default:
2871                                         dont_send_event = true;
2872                                         //this is not supposed to happen
2873                                         errorstream
2874                                         << "GUIFormSpecMenu::preprocessEvent unexpected usecase Event="
2875                                         << event.TouchInput.Event << std::endl;
2876                         }
2877                 } else if ( (event.TouchInput.touchedCount == 2) &&
2878                                 (event.TouchInput.Event == ETIE_PRESSED_DOWN) ) {
2879                         hovered = root->getElementFromPoint(m_down_pos);
2880
2881                         translated.MouseInput.Event = EMIE_RMOUSE_PRESSED_DOWN;
2882                         translated.MouseInput.ButtonStates = EMBSM_LEFT | EMBSM_RIGHT;
2883                         translated.MouseInput.X = m_pointer.X;
2884                         translated.MouseInput.Y = m_pointer.Y;
2885
2886                         if (hovered) {
2887                                 hovered->OnEvent(translated);
2888                         }
2889
2890                         translated.MouseInput.Event = EMIE_RMOUSE_LEFT_UP;
2891                         translated.MouseInput.ButtonStates = EMBSM_LEFT;
2892
2893
2894                         if (hovered) {
2895                                 hovered->OnEvent(translated);
2896                         }
2897                         dont_send_event = true;
2898                 }
2899                 /* ignore unhandled 2 touch events ... accidental moving for example */
2900                 else if (event.TouchInput.touchedCount == 2) {
2901                         dont_send_event = true;
2902                 }
2903                 else if (event.TouchInput.touchedCount > 2) {
2904                         errorstream
2905                         << "GUIFormSpecMenu::preprocessEvent to many multitouch events "
2906                         << event.TouchInput.touchedCount << " ignoring them" << std::endl;
2907                 }
2908
2909                 if (dont_send_event) {
2910                         return true;
2911                 }
2912
2913                 /* check if translated event needs to be preprocessed again */
2914                 if (preprocessEvent(translated)) {
2915                         return true;
2916                 }
2917                 if (hovered) {
2918                         grab();
2919                         bool retval = hovered->OnEvent(translated);
2920
2921                         if (event.TouchInput.Event == ETIE_LEFT_UP) {
2922                                 /* reset pointer */
2923                                 m_pointer = v2s32(0,0);
2924                         }
2925                         drop();
2926                         return retval;
2927                 }
2928         }
2929         #endif
2930
2931         return false;
2932 }
2933
2934 /******************************************************************************/
2935 bool GUIFormSpecMenu::DoubleClickDetection(const SEvent event)
2936 {
2937         if (event.MouseInput.Event == EMIE_LMOUSE_PRESSED_DOWN) {
2938                 m_doubleclickdetect[0].pos  = m_doubleclickdetect[1].pos;
2939                 m_doubleclickdetect[0].time = m_doubleclickdetect[1].time;
2940
2941                 m_doubleclickdetect[1].pos  = m_pointer;
2942                 m_doubleclickdetect[1].time = getTimeMs();
2943         }
2944         else if (event.MouseInput.Event == EMIE_LMOUSE_LEFT_UP) {
2945                 u32 delta = porting::getDeltaMs(m_doubleclickdetect[0].time, getTimeMs());
2946                 if (delta > 400) {
2947                         return false;
2948                 }
2949
2950                 double squaredistance =
2951                                 m_doubleclickdetect[0].pos
2952                                 .getDistanceFromSQ(m_doubleclickdetect[1].pos);
2953
2954                 if (squaredistance > (30*30)) {
2955                         return false;
2956                 }
2957
2958                 SEvent* translated = new SEvent();
2959                 assert(translated != 0);
2960                 //translate doubleclick to escape
2961                 memset(translated, 0, sizeof(SEvent));
2962                 translated->EventType = irr::EET_KEY_INPUT_EVENT;
2963                 translated->KeyInput.Key         = KEY_ESCAPE;
2964                 translated->KeyInput.Control     = false;
2965                 translated->KeyInput.Shift       = false;
2966                 translated->KeyInput.PressedDown = true;
2967                 translated->KeyInput.Char        = 0;
2968                 OnEvent(*translated);
2969
2970                 // no need to send the key up event as we're already deleted
2971                 // and no one else did notice this event
2972                 delete translated;
2973                 return true;
2974         }
2975         return false;
2976 }
2977
2978 bool GUIFormSpecMenu::OnEvent(const SEvent& event)
2979 {
2980         if(event.EventType==EET_KEY_INPUT_EVENT) {
2981                 KeyPress kp(event.KeyInput);
2982                 if (event.KeyInput.PressedDown && ( (kp == EscapeKey) ||
2983                         (kp == getKeySetting("keymap_inventory")) || (kp == CancelKey))) {
2984                         if (m_allowclose) {
2985                                 doPause = false;
2986                                 acceptInput(quit_mode_cancel);
2987                                 quitMenu();
2988                         } else {
2989                                 m_text_dst->gotText(narrow_to_wide("MenuQuit"));
2990                         }
2991                         return true;
2992                 } else if (m_client != NULL && event.KeyInput.PressedDown &&
2993                         (kp == getKeySetting("keymap_screenshot"))) {
2994                                 m_client->makeScreenshot(m_device);
2995                 }
2996                 if (event.KeyInput.PressedDown &&
2997                         (event.KeyInput.Key==KEY_RETURN ||
2998                          event.KeyInput.Key==KEY_UP ||
2999                          event.KeyInput.Key==KEY_DOWN)
3000                         ) {
3001                         switch (event.KeyInput.Key) {
3002                                 case KEY_RETURN:
3003                                         current_keys_pending.key_enter = true;
3004                                         break;
3005                                 case KEY_UP:
3006                                         current_keys_pending.key_up = true;
3007                                         break;
3008                                 case KEY_DOWN:
3009                                         current_keys_pending.key_down = true;
3010                                         break;
3011                                 break;
3012                                 default:
3013                                         //can't happen at all!
3014                                         assert("reached a source line that can't ever been reached" == 0);
3015                                         break;
3016                         }
3017                         if (current_keys_pending.key_enter && m_allowclose) {
3018                                 acceptInput(quit_mode_accept);
3019                                 quitMenu();
3020                         } else {
3021                                 acceptInput();
3022                         }
3023                         return true;
3024                 }
3025
3026         }
3027
3028         /* Mouse event other than movement, or crossing the border of inventory
3029           field while holding right mouse button
3030          */
3031         if (event.EventType == EET_MOUSE_INPUT_EVENT &&
3032                         (event.MouseInput.Event != EMIE_MOUSE_MOVED ||
3033                          (event.MouseInput.Event == EMIE_MOUSE_MOVED &&
3034                           event.MouseInput.isRightPressed() &&
3035                           getItemAtPos(m_pointer).i != getItemAtPos(m_old_pointer).i))) {
3036
3037                 // Get selected item and hovered/clicked item (s)
3038
3039                 m_old_tooltip_id = -1;
3040                 updateSelectedItem();
3041                 ItemSpec s = getItemAtPos(m_pointer);
3042
3043                 Inventory *inv_selected = NULL;
3044                 Inventory *inv_s = NULL;
3045
3046                 if(m_selected_item) {
3047                         inv_selected = m_invmgr->getInventory(m_selected_item->inventoryloc);
3048                         assert(inv_selected);
3049                         assert(inv_selected->getList(m_selected_item->listname) != NULL);
3050                 }
3051
3052                 u32 s_count = 0;
3053
3054                 if(s.isValid())
3055                 do { // breakable
3056                         inv_s = m_invmgr->getInventory(s.inventoryloc);
3057
3058                         if(!inv_s) {
3059                                 errorstream<<"InventoryMenu: The selected inventory location "
3060                                                 <<"\""<<s.inventoryloc.dump()<<"\" doesn't exist"
3061                                                 <<std::endl;
3062                                 s.i = -1;  // make it invalid again
3063                                 break;
3064                         }
3065
3066                         InventoryList *list = inv_s->getList(s.listname);
3067                         if(list == NULL) {
3068                                 verbosestream<<"InventoryMenu: The selected inventory list \""
3069                                                 <<s.listname<<"\" does not exist"<<std::endl;
3070                                 s.i = -1;  // make it invalid again
3071                                 break;
3072                         }
3073
3074                         if((u32)s.i >= list->getSize()) {
3075                                 infostream<<"InventoryMenu: The selected inventory list \""
3076                                                 <<s.listname<<"\" is too small (i="<<s.i<<", size="
3077                                                 <<list->getSize()<<")"<<std::endl;
3078                                 s.i = -1;  // make it invalid again
3079                                 break;
3080                         }
3081
3082                         s_count = list->getItem(s.i).count;
3083                 } while(0);
3084
3085                 bool identical = (m_selected_item != NULL) && s.isValid() &&
3086                         (inv_selected == inv_s) &&
3087                         (m_selected_item->listname == s.listname) &&
3088                         (m_selected_item->i == s.i);
3089
3090                 // buttons: 0 = left, 1 = right, 2 = middle
3091                 // up/down: 0 = down (press), 1 = up (release), 2 = unknown event, -1 movement
3092                 int button = 0;
3093                 int updown = 2;
3094                 if(event.MouseInput.Event == EMIE_LMOUSE_PRESSED_DOWN)
3095                         { button = 0; updown = 0; }
3096                 else if(event.MouseInput.Event == EMIE_RMOUSE_PRESSED_DOWN)
3097                         { button = 1; updown = 0; }
3098                 else if(event.MouseInput.Event == EMIE_MMOUSE_PRESSED_DOWN)
3099                         { button = 2; updown = 0; }
3100                 else if(event.MouseInput.Event == EMIE_LMOUSE_LEFT_UP)
3101                         { button = 0; updown = 1; }
3102                 else if(event.MouseInput.Event == EMIE_RMOUSE_LEFT_UP)
3103                         { button = 1; updown = 1; }
3104                 else if(event.MouseInput.Event == EMIE_MMOUSE_LEFT_UP)
3105                         { button = 2; updown = 1; }
3106                 else if(event.MouseInput.Event == EMIE_MOUSE_MOVED)
3107                         { updown = -1;}
3108
3109                 // Set this number to a positive value to generate a move action
3110                 // from m_selected_item to s.
3111                 u32 move_amount = 0;
3112
3113                 // Set this number to a positive value to generate a drop action
3114                 // from m_selected_item.
3115                 u32 drop_amount = 0;
3116
3117                 // Set this number to a positive value to generate a craft action at s.
3118                 u32 craft_amount = 0;
3119
3120                 if(updown == 0) {
3121                         // Some mouse button has been pressed
3122
3123                         //infostream<<"Mouse button "<<button<<" pressed at p=("
3124                         //      <<p.X<<","<<p.Y<<")"<<std::endl;
3125
3126                         m_selected_dragging = false;
3127
3128                         if(s.isValid() && s.listname == "craftpreview") {
3129                                 // Craft preview has been clicked: craft
3130                                 craft_amount = (button == 2 ? 10 : 1);
3131                         }
3132                         else if(m_selected_item == NULL) {
3133                                 if(s_count != 0) {
3134                                         // Non-empty stack has been clicked: select it
3135                                         m_selected_item = new ItemSpec(s);
3136
3137                                         if(button == 1)  // right
3138                                                 m_selected_amount = (s_count + 1) / 2;
3139                                         else if(button == 2)  // middle
3140                                                 m_selected_amount = MYMIN(s_count, 10);
3141                                         else  // left
3142                                                 m_selected_amount = s_count;
3143
3144                                         m_selected_dragging = true;
3145                                         m_rmouse_auto_place = false;
3146                                 }
3147                         }
3148                         else { // m_selected_item != NULL
3149                                 assert(m_selected_amount >= 1);
3150
3151                                 if(s.isValid()) {
3152                                         // Clicked a slot: move
3153                                         if(button == 1)  // right
3154                                                 move_amount = 1;
3155                                         else if(button == 2)  // middle
3156                                                 move_amount = MYMIN(m_selected_amount, 10);
3157                                         else  // left
3158                                                 move_amount = m_selected_amount;
3159
3160                                         if(identical) {
3161                                                 if(move_amount >= m_selected_amount)
3162                                                         m_selected_amount = 0;
3163                                                 else
3164                                                         m_selected_amount -= move_amount;
3165                                                 move_amount = 0;
3166                                         }
3167                                 }
3168                                 else if (!getAbsoluteClippingRect().isPointInside(m_pointer)) {
3169                                         // Clicked outside of the window: drop
3170                                         if(button == 1)  // right
3171                                                 drop_amount = 1;
3172                                         else if(button == 2)  // middle
3173                                                 drop_amount = MYMIN(m_selected_amount, 10);
3174                                         else  // left
3175                                                 drop_amount = m_selected_amount;
3176                                 }
3177                         }
3178                 }
3179                 else if(updown == 1) {
3180                         // Some mouse button has been released
3181
3182                         //infostream<<"Mouse button "<<button<<" released at p=("
3183                         //      <<p.X<<","<<p.Y<<")"<<std::endl;
3184
3185                         if(m_selected_item != NULL && m_selected_dragging && s.isValid()) {
3186                                 if(!identical) {
3187                                         // Dragged to different slot: move all selected
3188                                         move_amount = m_selected_amount;
3189                                 }
3190                         }
3191                         else if(m_selected_item != NULL && m_selected_dragging &&
3192                                 !(getAbsoluteClippingRect().isPointInside(m_pointer))) {
3193                                 // Dragged outside of window: drop all selected
3194                                 drop_amount = m_selected_amount;
3195                         }
3196
3197                         m_selected_dragging = false;
3198                         // Keep count of how many times right mouse button has been
3199                         // clicked. One click is drag without dropping. Click + release
3200                         // + click changes to drop one item when moved mode
3201                         if(button == 1 && m_selected_item != NULL)
3202                                 m_rmouse_auto_place = !m_rmouse_auto_place;
3203                 }
3204                 else if(updown == -1) {
3205                         // Mouse has been moved and rmb is down and mouse pointer just
3206                         // entered a new inventory field (checked in the entry-if, this
3207                         // is the only action here that is generated by mouse movement)
3208                         if(m_selected_item != NULL && s.isValid()){
3209                                 // Move 1 item
3210                                 // TODO: middle mouse to move 10 items might be handy
3211                                 if (m_rmouse_auto_place) {
3212                                         // Only move an item if the destination slot is empty
3213                                         // or contains the same item type as what is going to be
3214                                         // moved
3215                                         InventoryList *list_from = inv_selected->getList(m_selected_item->listname);
3216                                         InventoryList *list_to = inv_s->getList(s.listname);
3217                                         assert(list_from && list_to);
3218                                         ItemStack stack_from = list_from->getItem(m_selected_item->i);
3219                                         ItemStack stack_to = list_to->getItem(s.i);
3220                                         if (stack_to.empty() || stack_to.name == stack_from.name)
3221                                                 move_amount = 1;
3222                                 }
3223                         }
3224                 }
3225
3226                 // Possibly send inventory action to server
3227                 if(move_amount > 0)
3228                 {
3229                         // Send IACTION_MOVE
3230
3231                         assert(m_selected_item && m_selected_item->isValid());
3232                         assert(s.isValid());
3233
3234                         assert(inv_selected && inv_s);
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
3241                         // Check how many items can be moved
3242                         move_amount = stack_from.count = MYMIN(move_amount, stack_from.count);
3243                         ItemStack leftover = stack_to.addItem(stack_from, m_gamedef->idef());
3244                         // If source stack cannot be added to destination stack at all,
3245                         // they are swapped
3246                         if ((leftover.count == stack_from.count) &&
3247                                         (leftover.name == stack_from.name)) {
3248                                 m_selected_amount = stack_to.count;
3249                                 // In case the server doesn't directly swap them but instead
3250                                 // moves stack_to somewhere else, set this
3251                                 m_selected_content_guess = stack_to;
3252                                 m_selected_content_guess_inventory = s.inventoryloc;
3253                         }
3254                         // Source stack goes fully into destination stack
3255                         else if(leftover.empty()) {
3256                                 m_selected_amount -= move_amount;
3257                                 m_selected_content_guess = ItemStack(); // Clear
3258                         }
3259                         // Source stack goes partly into destination stack
3260                         else {
3261                                 move_amount -= leftover.count;
3262                                 m_selected_amount -= move_amount;
3263                                 m_selected_content_guess = ItemStack(); // Clear
3264                         }
3265
3266                         infostream<<"Handing IACTION_MOVE to manager"<<std::endl;
3267                         IMoveAction *a = new IMoveAction();
3268                         a->count = move_amount;
3269                         a->from_inv = m_selected_item->inventoryloc;
3270                         a->from_list = m_selected_item->listname;
3271                         a->from_i = m_selected_item->i;
3272                         a->to_inv = s.inventoryloc;
3273                         a->to_list = s.listname;
3274                         a->to_i = s.i;
3275                         m_invmgr->inventoryAction(a);
3276                 }
3277                 else if(drop_amount > 0) {
3278                         m_selected_content_guess = ItemStack(); // Clear
3279
3280                         // Send IACTION_DROP
3281
3282                         assert(m_selected_item && m_selected_item->isValid());
3283                         assert(inv_selected);
3284                         InventoryList *list_from = inv_selected->getList(m_selected_item->listname);
3285                         assert(list_from);
3286                         ItemStack stack_from = list_from->getItem(m_selected_item->i);
3287
3288                         // Check how many items can be dropped
3289                         drop_amount = stack_from.count = MYMIN(drop_amount, stack_from.count);
3290                         assert(drop_amount > 0 && drop_amount <= m_selected_amount);
3291                         m_selected_amount -= drop_amount;
3292
3293                         infostream<<"Handing IACTION_DROP to manager"<<std::endl;
3294                         IDropAction *a = new IDropAction();
3295                         a->count = drop_amount;
3296                         a->from_inv = m_selected_item->inventoryloc;
3297                         a->from_list = m_selected_item->listname;
3298                         a->from_i = m_selected_item->i;
3299                         m_invmgr->inventoryAction(a);
3300                 }
3301                 else if(craft_amount > 0) {
3302                         m_selected_content_guess = ItemStack(); // Clear
3303
3304                         // Send IACTION_CRAFT
3305
3306                         assert(s.isValid());
3307                         assert(inv_s);
3308
3309                         infostream<<"Handing IACTION_CRAFT to manager"<<std::endl;
3310                         ICraftAction *a = new ICraftAction();
3311                         a->count = craft_amount;
3312                         a->craft_inv = s.inventoryloc;
3313                         m_invmgr->inventoryAction(a);
3314                 }
3315
3316                 // If m_selected_amount has been decreased to zero, deselect
3317                 if(m_selected_amount == 0) {
3318                         delete m_selected_item;
3319                         m_selected_item = NULL;
3320                         m_selected_amount = 0;
3321                         m_selected_dragging = false;
3322                         m_selected_content_guess = ItemStack();
3323                 }
3324                 m_old_pointer = m_pointer;
3325         }
3326         if(event.EventType==EET_GUI_EVENT) {
3327
3328                 if(event.GUIEvent.EventType==gui::EGET_TAB_CHANGED
3329                                 && isVisible()) {
3330                         // find the element that was clicked
3331                         for(unsigned int i=0; i<m_fields.size(); i++) {
3332                                 FieldSpec &s = m_fields[i];
3333                                 if ((s.ftype == f_TabHeader) &&
3334                                                 (s.fid == event.GUIEvent.Caller->getID())) {
3335                                         s.send = true;
3336                                         acceptInput();
3337                                         s.send = false;
3338                                         return true;
3339                                 }
3340                         }
3341                 }
3342                 if(event.GUIEvent.EventType==gui::EGET_ELEMENT_FOCUS_LOST
3343                                 && isVisible()) {
3344                         if(!canTakeFocus(event.GUIEvent.Element)) {
3345                                 infostream<<"GUIFormSpecMenu: Not allowing focus change."
3346                                                 <<std::endl;
3347                                 // Returning true disables focus change
3348                                 return true;
3349                         }
3350                 }
3351                 if((event.GUIEvent.EventType == gui::EGET_BUTTON_CLICKED) ||
3352                                 (event.GUIEvent.EventType == gui::EGET_CHECKBOX_CHANGED) ||
3353                                 (event.GUIEvent.EventType == gui::EGET_COMBO_BOX_CHANGED) ||
3354                                 (event.GUIEvent.EventType == gui::EGET_SCROLL_BAR_CHANGED)) {
3355                         unsigned int btn_id = event.GUIEvent.Caller->getID();
3356
3357                         if (btn_id == 257) {
3358                                 if (m_allowclose) {
3359                                         acceptInput(quit_mode_accept);
3360                                         quitMenu();
3361                                 } else {
3362                                         acceptInput();
3363                                         m_text_dst->gotText(narrow_to_wide("ExitButton"));
3364                                 }
3365                                 // quitMenu deallocates menu
3366                                 return true;
3367                         }
3368
3369                         // find the element that was clicked
3370                         for(u32 i=0; i<m_fields.size(); i++) {
3371                                 FieldSpec &s = m_fields[i];
3372                                 // if its a button, set the send field so
3373                                 // lua knows which button was pressed
3374                                 if (((s.ftype == f_Button) || (s.ftype == f_CheckBox)) &&
3375                                                 (s.fid == event.GUIEvent.Caller->getID())) {
3376                                         s.send = true;
3377                                         if(s.is_exit) {
3378                                                 if (m_allowclose) {
3379                                                         acceptInput(quit_mode_accept);
3380                                                         quitMenu();
3381                                                 } else {
3382                                                         m_text_dst->gotText(narrow_to_wide("ExitButton"));
3383                                                 }
3384                                                 return true;
3385                                         } else {
3386                                                 acceptInput(quit_mode_no);
3387                                                 s.send = false;
3388                                                 return true;
3389                                         }
3390                                 }
3391                                 else if ((s.ftype == f_DropDown) &&
3392                                                 (s.fid == event.GUIEvent.Caller->getID())) {
3393                                         // only send the changed dropdown
3394                                         for(u32 i=0; i<m_fields.size(); i++) {
3395                                                 FieldSpec &s2 = m_fields[i];
3396                                                 if (s2.ftype == f_DropDown) {
3397                                                         s2.send = false;
3398                                                 }
3399                                         }
3400                                         s.send = true;
3401                                         acceptInput(quit_mode_no);
3402
3403                                         // revert configuration to make sure dropdowns are sent on
3404                                         // regular button click
3405                                         for(u32 i=0; i<m_fields.size(); i++) {
3406                                                 FieldSpec &s2 = m_fields[i];
3407                                                 if (s2.ftype == f_DropDown) {
3408                                                         s2.send = true;
3409                                                 }
3410                                         }
3411                                         return true;
3412                                 }
3413                                 else if ((s.ftype == f_ScrollBar) &&
3414                                         (s.fid == event.GUIEvent.Caller->getID()))
3415                                 {
3416                                         s.fdefault = L"Changed";
3417                                         acceptInput(quit_mode_no);
3418                                         s.fdefault = L"";
3419                                 }
3420                         }
3421                 }
3422
3423                 if(event.GUIEvent.EventType == gui::EGET_EDITBOX_ENTER) {
3424                         if(event.GUIEvent.Caller->getID() > 257) {
3425
3426                                 if (m_allowclose) {
3427                                         acceptInput(quit_mode_accept);
3428                                         quitMenu();
3429                                 } else {
3430                                         current_keys_pending.key_enter = true;
3431                                         acceptInput();
3432                                 }
3433                                 // quitMenu deallocates menu
3434                                 return true;
3435                         }
3436                 }
3437
3438                 if(event.GUIEvent.EventType == gui::EGET_TABLE_CHANGED) {
3439                         int current_id = event.GUIEvent.Caller->getID();
3440                         if(current_id > 257) {
3441                                 // find the element that was clicked
3442                                 for(u32 i=0; i<m_fields.size(); i++) {
3443                                         FieldSpec &s = m_fields[i];
3444                                         // if it's a table, set the send field
3445                                         // so lua knows which table was changed
3446                                         if ((s.ftype == f_Table) && (s.fid == current_id)) {
3447                                                 s.send = true;
3448                                                 acceptInput();
3449                                                 s.send=false;
3450                                         }
3451                                 }
3452                                 return true;
3453                         }
3454                 }
3455         }
3456
3457         return Parent ? Parent->OnEvent(event) : false;
3458 }
3459
3460 /**
3461  * get name of element by element id
3462  * @param id of element
3463  * @return name string or empty string
3464  */
3465 std::wstring GUIFormSpecMenu::getNameByID(s32 id)
3466 {
3467         for(std::vector<FieldSpec>::iterator iter =  m_fields.begin();
3468                                 iter != m_fields.end(); iter++) {
3469                 if (iter->fid == id) {
3470                         return iter->fname;
3471                 }
3472         }
3473         return L"";
3474 }
3475
3476 /**
3477  * get label of element by id
3478  * @param id of element
3479  * @return label string or empty string
3480  */
3481 std::wstring GUIFormSpecMenu::getLabelByID(s32 id)
3482 {
3483         for(std::vector<FieldSpec>::iterator iter =  m_fields.begin();
3484                                 iter != m_fields.end(); iter++) {
3485                 if (iter->fid == id) {
3486                         return iter->flabel;
3487                 }
3488         }
3489         return L"";
3490 }