src/guiFormSpecMenu.cpp

   1 /*
   2 Minetest
   3 Copyright (C) 2013 celeron55, Perttu Ahola <celeron55@gmail.com>
   4
   5 This program is free software; you can redistribute it and/or modify
   6 it under the terms of the GNU Lesser General Public License as published by
   7 the Free Software Foundation; either version 2.1 of the License, or
   8 (at your option) any later version.
   9
  10 This program is distributed in the hope that it will be useful,
  11 but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 GNU Lesser General Public License for more details.
  14
  15 You should have received a copy of the GNU Lesser General Public License along
  16 with this program; if not, write to the Free Software Foundation, Inc.,
  17 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  18 */
  19
  20
  21 #include <cstdlib>
  22 #include <algorithm>
  23 #include <iterator>
  24 #include <sstream>
  25 #include <limits>
  26 #include "guiFormSpecMenu.h"
  27 #include "guiTable.h"
  28 #include "constants.h"
  29 #include "gamedef.h"
  30 #include "keycode.h"
  31 #include "strfnd.h"
  32 #include <IGUICheckBox.h>
  33 #include <IGUIEditBox.h>
  34 #include <IGUIButton.h>
  35 #include <IGUIStaticText.h>
  36 #include <IGUIFont.h>
  37 #include <IGUITabControl.h>
  38 #include <IGUIComboBox.h>
  39 #include "log.h"
  40 #include "client/tile.h" // ITextureSource
  41 #include "hud.h" // drawItemStack
  42 #include "filesys.h"
  43 #include "gettime.h"
  44 #include "gettext.h"
  45 #include "scripting_game.h"
  46 #include "porting.h"
  47 #include "settings.h"
  48 #include "client.h"
  49 #include "fontengine.h"
  50 #include "util/hex.h"
  51 #include "util/numeric.h"
  52 #include "util/string.h" // for parseColorString()
  53 #include "guiscalingfilter.h"
  54
  55 #if USE_FREETYPE && IRRLICHT_VERSION_MAJOR == 1 && IRRLICHT_VERSION_MINOR < 9
  56 #include "intlGUIEditBox.h"
  57 #endif
  58
  59 #define MY_CHECKPOS(a,b)                                                                                                        \
  60         if (v_pos.size() != 2) {                                                                                                \
  61                 errorstream<< "Invalid pos for element " << a << "specified: \""        \
  62                         << parts[b] << "\"" << std::endl;                                                               \
  63                         return;                                                                                                                 \
  64         }
  65
  66 #define MY_CHECKGEOM(a,b)                                                                                                       \
  67         if (v_geom.size() != 2) {                                                                                               \
  68                 errorstream<< "Invalid pos for element " << a << "specified: \""        \
  69                         << parts[b] << "\"" << std::endl;                                                               \
  70                         return;                                                                                                                 \
  71         }
  72 /*
  73         GUIFormSpecMenu
  74 */
  75 static unsigned int font_line_height(gui::IGUIFont *font)
  76 {
  77         return font->getDimension(L"Ay").Height + font->getKerningHeight();
  78 }
  79
  80 GUIFormSpecMenu::GUIFormSpecMenu(irr::IrrlichtDevice* dev,
  81                 gui::IGUIElement* parent, s32 id, IMenuManager *menumgr,
  82                 InventoryManager *invmgr, IGameDef *gamedef,
  83                 ISimpleTextureSource *tsrc, IFormSource* fsrc, TextDest* tdst,
  84                 Client* client, bool remap_dbl_click) :
  85         GUIModalMenu(dev->getGUIEnvironment(), parent, id, menumgr),
  86         m_device(dev),
  87         m_invmgr(invmgr),
  88         m_gamedef(gamedef),
  89         m_tsrc(tsrc),
  90         m_client(client),
  91         m_selected_item(NULL),
  92         m_selected_amount(0),
  93         m_selected_dragging(false),
  94         m_tooltip_element(NULL),
  95         m_hovered_time(0),
  96         m_old_tooltip_id(-1),
  97         m_rmouse_auto_place(false),
  98         m_allowclose(true),
  99         m_lock(false),
 100         m_form_src(fsrc),
 101         m_text_dst(tdst),
 102         m_formspec_version(0),
 103         m_focused_element(""),
 104         m_font(NULL),
 105         m_remap_dbl_click(remap_dbl_click)
 106 #ifdef __ANDROID__
 107         , m_JavaDialogFieldName("")
 108 #endif
 109 {
 110         current_keys_pending.key_down = false;
 111         current_keys_pending.key_up = false;
 112         current_keys_pending.key_enter = false;
 113         current_keys_pending.key_escape = false;
 114
 115         m_doubleclickdetect[0].time = 0;
 116         m_doubleclickdetect[1].time = 0;
 117
 118         m_doubleclickdetect[0].pos = v2s32(0, 0);
 119         m_doubleclickdetect[1].pos = v2s32(0, 0);
 120
 121         m_tooltip_show_delay = (u32)g_settings->getS32("tooltip_show_delay");
 122 }
 123
 124 GUIFormSpecMenu::~GUIFormSpecMenu()
 125 {
 126         removeChildren();
 127
 128         for (u32 i = 0; i < m_tables.size(); ++i) {
 129                 GUITable *table = m_tables[i].second;
 130                 table->drop();
 131         }
 132
 133         delete m_selected_item;
 134
 135         if (m_form_src != NULL) {
 136                 delete m_form_src;
 137         }
 138         if (m_text_dst != NULL) {
 139                 delete m_text_dst;
 140         }
 141 }
 142
 143 void GUIFormSpecMenu::removeChildren()
 144 {
 145         const core::list<gui::IGUIElement*> &children = getChildren();
 146
 147         while(!children.empty()) {
 148                 (*children.getLast())->remove();
 149         }
 150
 151         if(m_tooltip_element) {
 152                 m_tooltip_element->remove();
 153                 m_tooltip_element->drop();
 154                 m_tooltip_element = NULL;
 155         }
 156
 157 }
 158
 159 void GUIFormSpecMenu::setInitialFocus()
 160 {
 161         // Set initial focus according to following order of precedence:
 162         // 1. first empty editbox
 163         // 2. first editbox
 164         // 3. first table
 165         // 4. last button
 166         // 5. first focusable (not statictext, not tabheader)
 167         // 6. first child element
 168
 169         core::list<gui::IGUIElement*> children = getChildren();
 170
 171         // in case "children" contains any NULL elements, remove them
 172         for (core::list<gui::IGUIElement*>::Iterator it = children.begin();
 173                         it != children.end();) {
 174                 if (*it)
 175                         ++it;
 176                 else
 177                         it = children.erase(it);
 178         }
 179
 180         // 1. first empty editbox
 181         for (core::list<gui::IGUIElement*>::Iterator it = children.begin();
 182                         it != children.end(); ++it) {
 183                 if ((*it)->getType() == gui::EGUIET_EDIT_BOX
 184                                 && (*it)->getText()[0] == 0) {
 185                         Environment->setFocus(*it);
 186                         return;
 187                 }
 188         }
 189
 190         // 2. first editbox
 191         for (core::list<gui::IGUIElement*>::Iterator it = children.begin();
 192                         it != children.end(); ++it) {
 193                 if ((*it)->getType() == gui::EGUIET_EDIT_BOX) {
 194                         Environment->setFocus(*it);
 195                         return;
 196                 }
 197         }
 198
 199         // 3. first table
 200         for (core::list<gui::IGUIElement*>::Iterator it = children.begin();
 201                         it != children.end(); ++it) {
 202                 if ((*it)->getTypeName() == std::string("GUITable")) {
 203                         Environment->setFocus(*it);
 204                         return;
 205                 }
 206         }
 207
 208         // 4. last button
 209         for (core::list<gui::IGUIElement*>::Iterator it = children.getLast();
 210                         it != children.end(); --it) {
 211                 if ((*it)->getType() == gui::EGUIET_BUTTON) {
 212                         Environment->setFocus(*it);
 213                         return;
 214                 }
 215         }
 216
 217         // 5. first focusable (not statictext, not tabheader)
 218         for (core::list<gui::IGUIElement*>::Iterator it = children.begin();
 219                         it != children.end(); ++it) {
 220                 if ((*it)->getType() != gui::EGUIET_STATIC_TEXT &&
 221                                 (*it)->getType() != gui::EGUIET_TAB_CONTROL) {
 222                         Environment->setFocus(*it);
 223                         return;
 224                 }
 225         }
 226
 227         // 6. first child element
 228         if (children.empty())
 229                 Environment->setFocus(this);
 230         else
 231                 Environment->setFocus(*(children.begin()));
 232 }
 233
 234 GUITable* GUIFormSpecMenu::getTable(const std::string &tablename)
 235 {
 236         for (u32 i = 0; i < m_tables.size(); ++i) {
 237                 if (tablename == m_tables[i].first.fname)
 238                         return m_tables[i].second;
 239         }
 240         return 0;
 241 }
 242
 243 static std::vector<std::string> split(const std::string &s, char delim)
 244 {
 245         std::vector<std::string> tokens;
 246
 247         std::string current = "";
 248         bool last_was_escape = false;
 249         for (unsigned int i = 0; i < s.size(); i++) {
 250                 char si = s.c_str()[i];
 251                 if (last_was_escape) {
 252                         current += '\\';
 253                         current += si;
 254                         last_was_escape = false;
 255                 } else {
 256                         if (si == delim) {
 257                                 tokens.push_back(current);
 258                                 current = "";
 259                                 last_was_escape = false;
 260                         } else if (si == '\\') {
 261                                 last_was_escape = true;
 262                         } else {
 263                                 current += si;
 264                                 last_was_escape = false;
 265                         }
 266                 }
 267         }
 268         //push last element
 269         tokens.push_back(current);
 270
 271         return tokens;
 272 }
 273
 274 void GUIFormSpecMenu::parseSize(parserData* data,std::string element)
 275 {
 276         std::vector<std::string> parts = split(element,',');
 277
 278         if (((parts.size() == 2) || parts.size() == 3) ||
 279                 ((parts.size() > 3) && (m_formspec_version > FORMSPEC_API_VERSION)))
 280         {
 281                 if (parts[1].find(';') != std::string::npos)
 282                         parts[1] = parts[1].substr(0,parts[1].find(';'));
 283
 284                 data->invsize.X = MYMAX(0, stof(parts[0]));
 285                 data->invsize.Y = MYMAX(0, stof(parts[1]));
 286
 287                 lockSize(false);
 288                 if (parts.size() == 3) {
 289                         if (parts[2] == "true") {
 290                                 lockSize(true,v2u32(800,600));
 291                         }
 292                 }
 293
 294                 data->explicit_size = true;
 295                 return;
 296         }
 297         errorstream<< "Invalid size element (" << parts.size() << "): '" << element << "'"  << std::endl;
 298 }
 299
 300 void GUIFormSpecMenu::parseList(parserData* data,std::string element)
 301 {
 302         if (m_gamedef == 0) {
 303                 errorstream<<"WARNING: invalid use of 'list' with m_gamedef==0"<<std::endl;
 304                 return;
 305         }
 306
 307         std::vector<std::string> parts = split(element,';');
 308
 309         if (((parts.size() == 4) || (parts.size() == 5)) ||
 310                 ((parts.size() > 5) && (m_formspec_version > FORMSPEC_API_VERSION)))
 311         {
 312                 std::string location = parts[0];
 313                 std::string listname = parts[1];
 314                 std::vector<std::string> v_pos  = split(parts[2],',');
 315                 std::vector<std::string> v_geom = split(parts[3],',');
 316                 std::string startindex = "";
 317                 if (parts.size() == 5)
 318                         startindex = parts[4];
 319
 320                 MY_CHECKPOS("list",2);
 321                 MY_CHECKGEOM("list",3);
 322
 323                 InventoryLocation loc;
 324
 325                 if(location == "context" || location == "current_name")
 326                         loc = m_current_inventory_location;
 327                 else
 328                         loc.deSerialize(location);
 329
 330                 v2s32 pos = padding + AbsoluteRect.UpperLeftCorner;
 331                 pos.X += stof(v_pos[0]) * (float)spacing.X;
 332                 pos.Y += stof(v_pos[1]) * (float)spacing.Y;
 333
 334                 v2s32 geom;
 335                 geom.X = stoi(v_geom[0]);
 336                 geom.Y = stoi(v_geom[1]);
 337
 338                 s32 start_i = 0;
 339                 if(startindex != "")
 340                         start_i = stoi(startindex);
 341
 342                 if (geom.X < 0 || geom.Y < 0 || start_i < 0) {
 343                         errorstream<< "Invalid list element: '" << element << "'"  << std::endl;
 344                         return;
 345                 }
 346
 347                 if(!data->explicit_size)
 348                         errorstream<<"WARNING: invalid use of list without a size[] element"<<std::endl;
 349                 m_inventorylists.push_back(ListDrawSpec(loc, listname, pos, geom, start_i));
 350                 return;
 351         }
 352         errorstream<< "Invalid list element(" << parts.size() << "): '" << element << "'"  << std::endl;
 353 }
 354
 355 void GUIFormSpecMenu::parseCheckbox(parserData* data,std::string element)
 356 {
 357         std::vector<std::string> parts = split(element,';');
 358
 359         if (((parts.size() >= 3) && (parts.size() <= 4)) ||
 360                 ((parts.size() > 4) && (m_formspec_version > FORMSPEC_API_VERSION)))
 361         {
 362                 std::vector<std::string> v_pos = split(parts[0],',');
 363                 std::string name = parts[1];
 364                 std::string label = parts[2];
 365                 std::string selected = "";
 366
 367                 if (parts.size() >= 4)
 368                         selected = parts[3];
 369
 370                 MY_CHECKPOS("checkbox",0);
 371
 372                 v2s32 pos = padding;
 373                 pos.X += stof(v_pos[0]) * (float) spacing.X;
 374                 pos.Y += stof(v_pos[1]) * (float) spacing.Y;
 375
 376                 bool fselected = false;
 377
 378                 if (selected == "true")
 379                         fselected = true;
 380
 381                 std::wstring wlabel = utf8_to_wide(label);
 382
 383                 core::rect<s32> rect = core::rect<s32>(
 384                                 pos.X, pos.Y + ((imgsize.Y/2) - m_btn_height),
 385                                 pos.X + m_font->getDimension(wlabel.c_str()).Width + 25, // text size + size of checkbox
 386                                 pos.Y + ((imgsize.Y/2) + m_btn_height));
 387
 388                 FieldSpec spec(
 389                                 name,
 390                                 wlabel, //Needed for displaying text on MSVC
 391                                 wlabel,
 392                                 258+m_fields.size()
 393                         );
 394
 395                 spec.ftype = f_CheckBox;
 396
 397                 gui::IGUICheckBox* e = Environment->addCheckBox(fselected, rect, this,
 398                                         spec.fid, spec.flabel.c_str());
 399
 400                 if (spec.fname == data->focused_fieldname) {
 401                         Environment->setFocus(e);
 402                 }
 403
 404                 m_checkboxes.push_back(std::pair<FieldSpec,gui::IGUICheckBox*>(spec,e));
 405                 m_fields.push_back(spec);
 406                 return;
 407         }
 408         errorstream<< "Invalid checkbox element(" << parts.size() << "): '" << element << "'"  << std::endl;
 409 }
 410
 411 void GUIFormSpecMenu::parseScrollBar(parserData* data, std::string element)
 412 {
 413         std::vector<std::string> parts = split(element,';');
 414
 415         if (parts.size() >= 5) {
 416                 std::vector<std::string> v_pos = split(parts[0],',');
 417                 std::vector<std::string> v_dim = split(parts[1],',');
 418                 std::string name = parts[2];
 419                 std::string value = parts[4];
 420
 421                 MY_CHECKPOS("scrollbar",0);
 422
 423                 v2s32 pos = padding;
 424                 pos.X += stof(v_pos[0]) * (float) spacing.X;
 425                 pos.Y += stof(v_pos[1]) * (float) spacing.Y;
 426
 427                 if (v_dim.size() != 2) {
 428                         errorstream<< "Invalid size for element " << "scrollbar"
 429                                 << "specified: \"" << parts[1] << "\"" << std::endl;
 430                         return;
 431                 }
 432
 433                 v2s32 dim;
 434                 dim.X = stof(v_dim[0]) * (float) spacing.X;
 435                 dim.Y = stof(v_dim[1]) * (float) spacing.Y;
 436
 437                 core::rect<s32> rect =
 438                                 core::rect<s32>(pos.X, pos.Y, pos.X + dim.X, pos.Y + dim.Y);
 439
 440                 FieldSpec spec(
 441                                 name,
 442                                 L"",
 443                                 L"",
 444                                 258+m_fields.size()
 445                         );
 446
 447                 bool is_horizontal = true;
 448
 449                 if (parts[2] == "vertical")
 450                         is_horizontal = false;
 451
 452                 spec.ftype = f_ScrollBar;
 453                 spec.send  = true;
 454                 gui::IGUIScrollBar* e =
 455                                 Environment->addScrollBar(is_horizontal,rect,this,spec.fid);
 456
 457                 e->setMax(1000);
 458                 e->setMin(0);
 459                 e->setPos(stoi(parts[4]));
 460                 e->setSmallStep(10);
 461                 e->setLargeStep(100);
 462
 463                 m_scrollbars.push_back(std::pair<FieldSpec,gui::IGUIScrollBar*>(spec,e));
 464                 m_fields.push_back(spec);
 465                 return;
 466         }
 467         errorstream<< "Invalid scrollbar element(" << parts.size() << "): '" << element << "'"  << std::endl;
 468 }
 469
 470 void GUIFormSpecMenu::parseImage(parserData* data,std::string element)
 471 {
 472         std::vector<std::string> parts = split(element,';');
 473
 474         if ((parts.size() == 3) ||
 475                 ((parts.size() > 3) && (m_formspec_version > FORMSPEC_API_VERSION)))
 476         {
 477                 std::vector<std::string> v_pos = split(parts[0],',');
 478                 std::vector<std::string> v_geom = split(parts[1],',');
 479                 std::string name = unescape_string(parts[2]);
 480
 481                 MY_CHECKPOS("image",0);
 482                 MY_CHECKGEOM("image",1);
 483
 484                 v2s32 pos = padding + AbsoluteRect.UpperLeftCorner;
 485                 pos.X += stof(v_pos[0]) * (float) spacing.X;
 486                 pos.Y += stof(v_pos[1]) * (float) spacing.Y;
 487
 488                 v2s32 geom;
 489                 geom.X = stof(v_geom[0]) * (float)imgsize.X;
 490                 geom.Y = stof(v_geom[1]) * (float)imgsize.Y;
 491
 492                 if(!data->explicit_size)
 493                         errorstream<<"WARNING: invalid use of image without a size[] element"<<std::endl;
 494                 m_images.push_back(ImageDrawSpec(name, pos, geom));
 495                 return;
 496         }
 497
 498         if (parts.size() == 2) {
 499                 std::vector<std::string> v_pos = split(parts[0],',');
 500                 std::string name = unescape_string(parts[1]);
 501
 502                 MY_CHECKPOS("image",0);
 503
 504                 v2s32 pos = padding + AbsoluteRect.UpperLeftCorner;
 505                 pos.X += stof(v_pos[0]) * (float) spacing.X;
 506                 pos.Y += stof(v_pos[1]) * (float) spacing.Y;
 507
 508                 if(!data->explicit_size)
 509                         errorstream<<"WARNING: invalid use of image without a size[] element"<<std::endl;
 510                 m_images.push_back(ImageDrawSpec(name, pos));
 511                 return;
 512         }
 513         errorstream<< "Invalid image element(" << parts.size() << "): '" << element << "'"  << std::endl;
 514 }
 515
 516 void GUIFormSpecMenu::parseItemImage(parserData* data,std::string element)
 517 {
 518         std::vector<std::string> parts = split(element,';');
 519
 520         if ((parts.size() == 3) ||
 521                 ((parts.size() > 3) && (m_formspec_version > FORMSPEC_API_VERSION)))
 522         {
 523                 std::vector<std::string> v_pos = split(parts[0],',');
 524                 std::vector<std::string> v_geom = split(parts[1],',');
 525                 std::string name = parts[2];
 526
 527                 MY_CHECKPOS("itemimage",0);
 528                 MY_CHECKGEOM("itemimage",1);
 529
 530                 v2s32 pos = padding + AbsoluteRect.UpperLeftCorner;
 531                 pos.X += stof(v_pos[0]) * (float) spacing.X;
 532                 pos.Y += stof(v_pos[1]) * (float) spacing.Y;
 533
 534                 v2s32 geom;
 535                 geom.X = stof(v_geom[0]) * (float)imgsize.X;
 536                 geom.Y = stof(v_geom[1]) * (float)imgsize.Y;
 537
 538                 if(!data->explicit_size)
 539                         errorstream<<"WARNING: invalid use of item_image without a size[] element"<<std::endl;
 540                 m_itemimages.push_back(ImageDrawSpec(name, pos, geom));
 541                 return;
 542         }
 543         errorstream<< "Invalid ItemImage element(" << parts.size() << "): '" << element << "'"  << std::endl;
 544 }
 545
 546 void GUIFormSpecMenu::parseButton(parserData* data,std::string element,
 547                 std::string type)
 548 {
 549         std::vector<std::string> parts = split(element,';');
 550
 551         if ((parts.size() == 4) ||
 552                 ((parts.size() > 4) && (m_formspec_version > FORMSPEC_API_VERSION)))
 553         {
 554                 std::vector<std::string> v_pos = split(parts[0],',');
 555                 std::vector<std::string> v_geom = split(parts[1],',');
 556                 std::string name = parts[2];
 557                 std::string label = parts[3];
 558
 559                 MY_CHECKPOS("button",0);
 560                 MY_CHECKGEOM("button",1);
 561
 562                 v2s32 pos = padding;
 563                 pos.X += stof(v_pos[0]) * (float)spacing.X;
 564                 pos.Y += stof(v_pos[1]) * (float)spacing.Y;
 565
 566                 v2s32 geom;
 567                 geom.X = (stof(v_geom[0]) * (float)spacing.X)-(spacing.X-imgsize.X);
 568                 pos.Y += (stof(v_geom[1]) * (float)imgsize.Y)/2;
 569
 570                 core::rect<s32> rect =
 571                                 core::rect<s32>(pos.X, pos.Y - m_btn_height,
 572                                                 pos.X + geom.X, pos.Y + m_btn_height);
 573
 574                 if(!data->explicit_size)
 575                         errorstream<<"WARNING: invalid use of button without a size[] element"<<std::endl;
 576
 577                 label = unescape_string(label);
 578
 579                 std::wstring wlabel = utf8_to_wide(label);
 580
 581                 FieldSpec spec(
 582                         name,
 583                         wlabel,
 584                         L"",
 585                         258+m_fields.size()
 586                 );
 587                 spec.ftype = f_Button;
 588                 if(type == "button_exit")
 589                         spec.is_exit = true;
 590                 gui::IGUIButton* e = Environment->addButton(rect, this, spec.fid,
 591                                 spec.flabel.c_str());
 592
 593                 if (spec.fname == data->focused_fieldname) {
 594                         Environment->setFocus(e);
 595                 }
 596
 597                 m_fields.push_back(spec);
 598                 return;
 599         }
 600         errorstream<< "Invalid button element(" << parts.size() << "): '" << element << "'"  << std::endl;
 601 }
 602
 603 void GUIFormSpecMenu::parseBackground(parserData* data,std::string element)
 604 {
 605         std::vector<std::string> parts = split(element,';');
 606
 607         if (((parts.size() == 3) || (parts.size() == 4)) ||
 608                 ((parts.size() > 4) && (m_formspec_version > FORMSPEC_API_VERSION)))
 609         {
 610                 std::vector<std::string> v_pos = split(parts[0],',');
 611                 std::vector<std::string> v_geom = split(parts[1],',');
 612                 std::string name = unescape_string(parts[2]);
 613
 614                 MY_CHECKPOS("background",0);
 615                 MY_CHECKGEOM("background",1);
 616
 617                 v2s32 pos = padding + AbsoluteRect.UpperLeftCorner;
 618                 pos.X += stof(v_pos[0]) * (float)spacing.X - ((float)spacing.X-(float)imgsize.X)/2;
 619                 pos.Y += stof(v_pos[1]) * (float)spacing.Y - ((float)spacing.Y-(float)imgsize.Y)/2;
 620
 621                 v2s32 geom;
 622                 geom.X = stof(v_geom[0]) * (float)spacing.X;
 623                 geom.Y = stof(v_geom[1]) * (float)spacing.Y;
 624
 625                 if (parts.size() == 4) {
 626                         m_clipbackground = is_yes(parts[3]);
 627                         if (m_clipbackground) {
 628                                 pos.X = stoi(v_pos[0]); //acts as offset
 629                                 pos.Y = stoi(v_pos[1]); //acts as offset
 630                         }
 631                 }
 632
 633                 if(!data->explicit_size)
 634                         errorstream<<"WARNING: invalid use of background without a size[] element"<<std::endl;
 635                 m_backgrounds.push_back(ImageDrawSpec(name, pos, geom));
 636                 return;
 637         }
 638         errorstream<< "Invalid background element(" << parts.size() << "): '" << element << "'"  << std::endl;
 639 }
 640
 641 void GUIFormSpecMenu::parseTableOptions(parserData* data,std::string element)
 642 {
 643         std::vector<std::string> parts = split(element,';');
 644
 645         data->table_options.clear();
 646         for (size_t i = 0; i < parts.size(); ++i) {
 647                 // Parse table option
 648                 std::string opt = unescape_string(parts[i]);
 649                 data->table_options.push_back(GUITable::splitOption(opt));
 650         }
 651 }
 652
 653 void GUIFormSpecMenu::parseTableColumns(parserData* data,std::string element)
 654 {
 655         std::vector<std::string> parts = split(element,';');
 656
 657         data->table_columns.clear();
 658         for (size_t i = 0; i < parts.size(); ++i) {
 659                 std::vector<std::string> col_parts = split(parts[i],',');
 660                 GUITable::TableColumn column;
 661                 // Parse column type
 662                 if (!col_parts.empty())
 663                         column.type = col_parts[0];
 664                 // Parse column options
 665                 for (size_t j = 1; j < col_parts.size(); ++j) {
 666                         std::string opt = unescape_string(col_parts[j]);
 667                         column.options.push_back(GUITable::splitOption(opt));
 668                 }
 669                 data->table_columns.push_back(column);
 670         }
 671 }
 672
 673 void GUIFormSpecMenu::parseTable(parserData* data,std::string element)
 674 {
 675         std::vector<std::string> parts = split(element,';');
 676
 677         if (((parts.size() == 4) || (parts.size() == 5)) ||
 678                 ((parts.size() > 5) && (m_formspec_version > FORMSPEC_API_VERSION)))
 679         {
 680                 std::vector<std::string> v_pos = split(parts[0],',');
 681                 std::vector<std::string> v_geom = split(parts[1],',');
 682                 std::string name = parts[2];
 683                 std::vector<std::string> items = split(parts[3],',');
 684                 std::string str_initial_selection = "";
 685                 std::string str_transparent = "false";
 686
 687                 if (parts.size() >= 5)
 688                         str_initial_selection = parts[4];
 689
 690                 MY_CHECKPOS("table",0);
 691                 MY_CHECKGEOM("table",1);
 692
 693                 v2s32 pos = padding;
 694                 pos.X += stof(v_pos[0]) * (float)spacing.X;
 695                 pos.Y += stof(v_pos[1]) * (float)spacing.Y;
 696
 697                 v2s32 geom;
 698                 geom.X = stof(v_geom[0]) * (float)spacing.X;
 699                 geom.Y = stof(v_geom[1]) * (float)spacing.Y;
 700
 701
 702                 core::rect<s32> rect = core::rect<s32>(pos.X, pos.Y, pos.X+geom.X, pos.Y+geom.Y);
 703
 704                 FieldSpec spec(
 705                         name,
 706                         L"",
 707                         L"",
 708                         258+m_fields.size()
 709                 );
 710
 711                 spec.ftype = f_Table;
 712
 713                 for (unsigned int i = 0; i < items.size(); ++i) {
 714                         items[i] = unescape_string(items[i]);
 715                 }
 716
 717                 //now really show table
 718                 GUITable *e = new GUITable(Environment, this, spec.fid, rect,
 719                                 m_tsrc);
 720
 721                 if (spec.fname == data->focused_fieldname) {
 722                         Environment->setFocus(e);
 723                 }
 724
 725                 e->setTable(data->table_options, data->table_columns, items);
 726
 727                 if (data->table_dyndata.find(name) != data->table_dyndata.end()) {
 728                         e->setDynamicData(data->table_dyndata[name]);
 729                 }
 730
 731                 if ((str_initial_selection != "") &&
 732                                 (str_initial_selection != "0"))
 733                         e->setSelected(stoi(str_initial_selection.c_str()));
 734
 735                 m_tables.push_back(std::pair<FieldSpec,GUITable*>(spec, e));
 736                 m_fields.push_back(spec);
 737                 return;
 738         }
 739         errorstream<< "Invalid table element(" << parts.size() << "): '" << element << "'"  << std::endl;
 740 }
 741
 742 void GUIFormSpecMenu::parseTextList(parserData* data,std::string element)
 743 {
 744         std::vector<std::string> parts = split(element,';');
 745
 746         if (((parts.size() == 4) || (parts.size() == 5) || (parts.size() == 6)) ||
 747                 ((parts.size() > 6) && (m_formspec_version > FORMSPEC_API_VERSION)))
 748         {
 749                 std::vector<std::string> v_pos = split(parts[0],',');
 750                 std::vector<std::string> v_geom = split(parts[1],',');
 751                 std::string name = parts[2];
 752                 std::vector<std::string> items = split(parts[3],',');
 753                 std::string str_initial_selection = "";
 754                 std::string str_transparent = "false";
 755
 756                 if (parts.size() >= 5)
 757                         str_initial_selection = parts[4];
 758
 759                 if (parts.size() >= 6)
 760                         str_transparent = parts[5];
 761
 762                 MY_CHECKPOS("textlist",0);
 763                 MY_CHECKGEOM("textlist",1);
 764
 765                 v2s32 pos = padding;
 766                 pos.X += stof(v_pos[0]) * (float)spacing.X;
 767                 pos.Y += stof(v_pos[1]) * (float)spacing.Y;
 768
 769                 v2s32 geom;
 770                 geom.X = stof(v_geom[0]) * (float)spacing.X;
 771                 geom.Y = stof(v_geom[1]) * (float)spacing.Y;
 772
 773
 774                 core::rect<s32> rect = core::rect<s32>(pos.X, pos.Y, pos.X+geom.X, pos.Y+geom.Y);
 775
 776                 FieldSpec spec(
 777                         name,
 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(name) != data->table_dyndata.end()) {
 800                         e->setDynamicData(data->table_dyndata[name]);
 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                 FieldSpec spec(
 840                         name,
 841                         L"",
 842                         L"",
 843                         258+m_fields.size()
 844                 );
 845
 846                 spec.ftype = f_DropDown;
 847                 spec.send = true;
 848
 849                 //now really show list
 850                 gui::IGUIComboBox *e = Environment->addComboBox(rect, this,spec.fid);
 851
 852                 if (spec.fname == data->focused_fieldname) {
 853                         Environment->setFocus(e);
 854                 }
 855
 856                 for (unsigned int i=0; i < items.size(); i++) {
 857                         e->addItem(utf8_to_wide(items[i]).c_str());
 858                 }
 859
 860                 if (str_initial_selection != "")
 861                         e->setSelected(stoi(str_initial_selection.c_str())-1);
 862
 863                 m_fields.push_back(spec);
 864                 return;
 865         }
 866         errorstream << "Invalid dropdown element(" << parts.size() << "): '"
 867                                 << element << "'"  << std::endl;
 868 }
 869
 870 void GUIFormSpecMenu::parsePwdField(parserData* data,std::string element)
 871 {
 872         std::vector<std::string> parts = split(element,';');
 873
 874         if ((parts.size() == 4) ||
 875                 ((parts.size() > 4) && (m_formspec_version > FORMSPEC_API_VERSION)))
 876         {
 877                 std::vector<std::string> v_pos = split(parts[0],',');
 878                 std::vector<std::string> v_geom = split(parts[1],',');
 879                 std::string name = parts[2];
 880                 std::string label = parts[3];
 881
 882                 MY_CHECKPOS("pwdfield",0);
 883                 MY_CHECKGEOM("pwdfield",1);
 884
 885                 v2s32 pos;
 886                 pos.X += stof(v_pos[0]) * (float)spacing.X;
 887                 pos.Y += stof(v_pos[1]) * (float)spacing.Y;
 888
 889                 v2s32 geom;
 890                 geom.X = (stof(v_geom[0]) * (float)spacing.X)-(spacing.X-imgsize.X);
 891
 892                 pos.Y += (stof(v_geom[1]) * (float)imgsize.Y)/2;
 893                 pos.Y -= m_btn_height;
 894                 geom.Y = m_btn_height*2;
 895
 896                 core::rect<s32> rect = core::rect<s32>(pos.X, pos.Y, pos.X+geom.X, pos.Y+geom.Y);
 897
 898                 label = unescape_string(label);
 899
 900                 std::wstring wlabel = utf8_to_wide(label);
 901
 902                 FieldSpec spec(
 903                         name,
 904                         wlabel,
 905                         L"",
 906                         258+m_fields.size()
 907                         );
 908
 909                 spec.send = true;
 910                 gui::IGUIEditBox * e = Environment->addEditBox(0, rect, true, this, spec.fid);
 911
 912                 if (spec.fname == data->focused_fieldname) {
 913                         Environment->setFocus(e);
 914                 }
 915
 916                 if (label.length() >= 1)
 917                 {
 918                         int font_height = g_fontengine->getTextHeight();
 919                         rect.UpperLeftCorner.Y -= font_height;
 920                         rect.LowerRightCorner.Y = rect.UpperLeftCorner.Y + font_height;
 921                         Environment->addStaticText(spec.flabel.c_str(), rect, false, true, this, 0);
 922                 }
 923
 924                 e->setPasswordBox(true,L'*');
 925
 926                 irr::SEvent evt;
 927                 evt.EventType            = EET_KEY_INPUT_EVENT;
 928                 evt.KeyInput.Key         = KEY_END;
 929                 evt.KeyInput.Char        = 0;
 930                 evt.KeyInput.Control     = 0;
 931                 evt.KeyInput.Shift       = 0;
 932                 evt.KeyInput.PressedDown = true;
 933                 e->OnEvent(evt);
 934                 m_fields.push_back(spec);
 935                 return;
 936         }
 937         errorstream<< "Invalid pwdfield element(" << parts.size() << "): '" << element << "'"  << std::endl;
 938 }
 939
 940 void GUIFormSpecMenu::parseSimpleField(parserData* data,
 941                 std::vector<std::string> &parts)
 942 {
 943         std::string name = parts[0];
 944         std::string label = parts[1];
 945         std::string default_val = parts[2];
 946
 947         core::rect<s32> rect;
 948
 949         if(data->explicit_size)
 950                 errorstream<<"WARNING: invalid use of unpositioned \"field\" in inventory"<<std::endl;
 951
 952         v2s32 pos = padding + AbsoluteRect.UpperLeftCorner;
 953         pos.Y = ((m_fields.size()+2)*60);
 954         v2s32 size = DesiredRect.getSize();
 955
 956         rect = core::rect<s32>(size.X / 2 - 150, pos.Y,
 957                         (size.X / 2 - 150) + 300, pos.Y + (m_btn_height*2));
 958
 959
 960         if(m_form_src)
 961                 default_val = m_form_src->resolveText(default_val);
 962
 963         default_val = unescape_string(default_val);
 964         label = unescape_string(label);
 965
 966         std::wstring wlabel = utf8_to_wide(label);
 967
 968         FieldSpec spec(
 969                 name,
 970                 wlabel,
 971                 utf8_to_wide(default_val),
 972                 258+m_fields.size()
 973         );
 974
 975         if (name == "")
 976         {
 977                 // spec field id to 0, this stops submit searching for a value that isn't there
 978                 Environment->addStaticText(spec.flabel.c_str(), rect, false, true, this, spec.fid);
 979         }
 980         else
 981         {
 982                 spec.send = true;
 983                 gui::IGUIElement *e;
 984 #if USE_FREETYPE && IRRLICHT_VERSION_MAJOR == 1 && IRRLICHT_VERSION_MINOR < 9
 985                 if (g_settings->getBool("freetype")) {
 986                         e = (gui::IGUIElement *) new gui::intlGUIEditBox(spec.fdefault.c_str(),
 987                                 true, Environment, this, spec.fid, rect);
 988                 } else {
 989 #else
 990                 {
 991 #endif
 992                         e = Environment->addEditBox(spec.fdefault.c_str(), rect, true, this, spec.fid);
 993                 }
 994                 if (spec.fname == data->focused_fieldname) {
 995                         Environment->setFocus(e);
 996                 }
 997
 998                 irr::SEvent evt;
 999                 evt.EventType            = EET_KEY_INPUT_EVENT;
1000                 evt.KeyInput.Key         = KEY_END;
1001                 evt.KeyInput.Char        = 0;
1002                 evt.KeyInput.Control     = 0;
1003                 evt.KeyInput.Shift       = 0;
1004                 evt.KeyInput.PressedDown = true;
1005                 e->OnEvent(evt);
1006
1007                 if (label.length() >= 1)
1008                 {
1009                         int font_height = g_fontengine->getTextHeight();
1010                         rect.UpperLeftCorner.Y -= font_height;
1011                         rect.LowerRightCorner.Y = rect.UpperLeftCorner.Y + font_height;
1012                         Environment->addStaticText(spec.flabel.c_str(), rect, false, true, this, 0);
1013                 }
1014         }
1015
1016         m_fields.push_back(spec);
1017 }
1018
1019 void GUIFormSpecMenu::parseTextArea(parserData* data,
1020                 std::vector<std::string>& parts,std::string type)
1021 {
1022
1023         std::vector<std::string> v_pos = split(parts[0],',');
1024         std::vector<std::string> v_geom = split(parts[1],',');
1025         std::string name = parts[2];
1026         std::string label = parts[3];
1027         std::string default_val = parts[4];
1028
1029         MY_CHECKPOS(type,0);
1030         MY_CHECKGEOM(type,1);
1031
1032         v2s32 pos;
1033         pos.X = stof(v_pos[0]) * (float) spacing.X;
1034         pos.Y = stof(v_pos[1]) * (float) spacing.Y;
1035
1036         v2s32 geom;
1037
1038         geom.X = (stof(v_geom[0]) * (float)spacing.X)-(spacing.X-imgsize.X);
1039
1040         if (type == "textarea")
1041         {
1042                 geom.Y = (stof(v_geom[1]) * (float)imgsize.Y) - (spacing.Y-imgsize.Y);
1043                 pos.Y += m_btn_height;
1044         }
1045         else
1046         {
1047                 pos.Y += (stof(v_geom[1]) * (float)imgsize.Y)/2;
1048                 pos.Y -= m_btn_height;
1049                 geom.Y = m_btn_height*2;
1050         }
1051
1052         core::rect<s32> rect = core::rect<s32>(pos.X, pos.Y, pos.X+geom.X, pos.Y+geom.Y);
1053
1054         if(!data->explicit_size)
1055                 errorstream<<"WARNING: invalid use of positioned "<<type<<" without a size[] element"<<std::endl;
1056
1057         if(m_form_src)
1058                 default_val = m_form_src->resolveText(default_val);
1059
1060
1061         default_val = unescape_string(default_val);
1062         label = unescape_string(label);
1063
1064         std::wstring wlabel = utf8_to_wide(label);
1065
1066         FieldSpec spec(
1067                 name,
1068                 wlabel,
1069                 utf8_to_wide(default_val),
1070                 258+m_fields.size()
1071         );
1072
1073         if (name == "")
1074         {
1075                 // spec field id to 0, this stops submit searching for a value that isn't there
1076                 Environment->addStaticText(spec.flabel.c_str(), rect, false, true, this, spec.fid);
1077         }
1078         else
1079         {
1080                 spec.send = true;
1081
1082                 gui::IGUIEditBox *e;
1083 #if USE_FREETYPE && IRRLICHT_VERSION_MAJOR == 1 && IRRLICHT_VERSION_MINOR < 9
1084                 if (g_settings->getBool("freetype")) {
1085                         e = (gui::IGUIEditBox *) new gui::intlGUIEditBox(spec.fdefault.c_str(),
1086                                 true, Environment, this, spec.fid, rect);
1087                 } else {
1088 #else
1089                 {
1090 #endif
1091                         e = Environment->addEditBox(spec.fdefault.c_str(), rect, true, this, spec.fid);
1092                 }
1093
1094                 if (spec.fname == data->focused_fieldname) {
1095                         Environment->setFocus(e);
1096                 }
1097
1098                 if (type == "textarea")
1099                 {
1100                         e->setMultiLine(true);
1101                         e->setWordWrap(true);
1102                         e->setTextAlignment(gui::EGUIA_UPPERLEFT, gui::EGUIA_UPPERLEFT);
1103                 } else {
1104                         irr::SEvent evt;
1105                         evt.EventType            = EET_KEY_INPUT_EVENT;
1106                         evt.KeyInput.Key         = KEY_END;
1107                         evt.KeyInput.Char        = 0;
1108                         evt.KeyInput.Control     = 0;
1109                         evt.KeyInput.Shift       = 0;
1110                         evt.KeyInput.PressedDown = true;
1111                         e->OnEvent(evt);
1112                 }
1113
1114                 if (label.length() >= 1)
1115                 {
1116                         int font_height = g_fontengine->getTextHeight();
1117                         rect.UpperLeftCorner.Y -= font_height;
1118                         rect.LowerRightCorner.Y = rect.UpperLeftCorner.Y + font_height;
1119                         Environment->addStaticText(spec.flabel.c_str(), rect, false, true, this, 0);
1120                 }
1121         }
1122         m_fields.push_back(spec);
1123 }
1124
1125 void GUIFormSpecMenu::parseField(parserData* data,std::string element,
1126                 std::string type)
1127 {
1128         std::vector<std::string> parts = split(element,';');
1129
1130         if (parts.size() == 3 || parts.size() == 4) {
1131                 parseSimpleField(data,parts);
1132                 return;
1133         }
1134
1135         if ((parts.size() == 5) ||
1136                 ((parts.size() > 5) && (m_formspec_version > FORMSPEC_API_VERSION)))
1137         {
1138                 parseTextArea(data,parts,type);
1139                 return;
1140         }
1141         errorstream<< "Invalid field element(" << parts.size() << "): '" << element << "'"  << std::endl;
1142 }
1143
1144 void GUIFormSpecMenu::parseLabel(parserData* data,std::string element)
1145 {
1146         std::vector<std::string> parts = split(element,';');
1147
1148         if ((parts.size() == 2) ||
1149                 ((parts.size() > 2) && (m_formspec_version > FORMSPEC_API_VERSION)))
1150         {
1151                 std::vector<std::string> v_pos = split(parts[0],',');
1152                 std::string text = parts[1];
1153
1154                 MY_CHECKPOS("label",0);
1155
1156                 v2s32 pos = padding;
1157                 pos.X += stof(v_pos[0]) * (float)spacing.X;
1158                 pos.Y += (stof(v_pos[1]) + 7.0/30.0) * (float)spacing.Y;
1159
1160                 if(!data->explicit_size)
1161                         errorstream<<"WARNING: invalid use of label without a size[] element"<<std::endl;
1162
1163                 text = unescape_string(text);
1164                 std::vector<std::string> lines = split(text, '\n');
1165
1166                 for (unsigned int i = 0; i != lines.size(); i++) {
1167                         // Lines are spaced at the nominal distance of
1168                         // 2/5 inventory slot, even if the font doesn't
1169                         // quite match that.  This provides consistent
1170                         // form layout, at the expense of sometimes
1171                         // having sub-optimal spacing for the font.
1172                         // We multiply by 2 and then divide by 5, rather
1173                         // than multiply by 0.4, to get exact results
1174                         // in the integer cases: 0.4 is not exactly
1175                         // representable in binary floating point.
1176                         s32 posy = pos.Y + ((float)i) * spacing.Y * 2.0 / 5.0;
1177                         std::wstring wlabel = utf8_to_wide(lines[i]);
1178                         core::rect<s32> rect = core::rect<s32>(
1179                                 pos.X, posy - m_btn_height,
1180                                 pos.X + m_font->getDimension(wlabel.c_str()).Width,
1181                                 posy + m_btn_height);
1182                         FieldSpec spec(
1183                                 "",
1184                                 wlabel,
1185                                 L"",
1186                                 258+m_fields.size()
1187                         );
1188                         gui::IGUIStaticText *e =
1189                                 Environment->addStaticText(spec.flabel.c_str(),
1190                                         rect, false, false, this, spec.fid);
1191                         e->setTextAlignment(gui::EGUIA_UPPERLEFT,
1192                                                 gui::EGUIA_CENTER);
1193                         m_fields.push_back(spec);
1194                 }
1195
1196                 return;
1197         }
1198         errorstream<< "Invalid label element(" << parts.size() << "): '" << element << "'"  << std::endl;
1199 }
1200
1201 void GUIFormSpecMenu::parseVertLabel(parserData* data,std::string element)
1202 {
1203         std::vector<std::string> parts = split(element,';');
1204
1205         if ((parts.size() == 2) ||
1206                 ((parts.size() > 2) && (m_formspec_version > FORMSPEC_API_VERSION)))
1207         {
1208                 std::vector<std::string> v_pos = split(parts[0],',');
1209                 std::wstring text = utf8_to_wide(unescape_string(parts[1]));
1210
1211                 MY_CHECKPOS("vertlabel",1);
1212
1213                 v2s32 pos = padding;
1214                 pos.X += stof(v_pos[0]) * (float)spacing.X;
1215                 pos.Y += stof(v_pos[1]) * (float)spacing.Y;
1216
1217                 core::rect<s32> rect = core::rect<s32>(
1218                                 pos.X, pos.Y+((imgsize.Y/2)- m_btn_height),
1219                                 pos.X+15, pos.Y +
1220                                         font_line_height(m_font)
1221                                         * (text.length()+1)
1222                                         +((imgsize.Y/2)- m_btn_height));
1223                 //actually text.length() would be correct but adding +1 avoids to break all mods
1224
1225                 if(!data->explicit_size)
1226                         errorstream<<"WARNING: invalid use of label without a size[] element"<<std::endl;
1227
1228                 std::wstring label = L"";
1229
1230                 for (unsigned int i=0; i < text.length(); i++) {
1231                         label += text[i];
1232                         label += L"\n";
1233                 }
1234
1235                 FieldSpec spec(
1236                         "",
1237                         label,
1238                         L"",
1239                         258+m_fields.size()
1240                 );
1241                 gui::IGUIStaticText *t =
1242                                 Environment->addStaticText(spec.flabel.c_str(), rect, false, false, this, spec.fid);
1243                 t->setTextAlignment(gui::EGUIA_CENTER, gui::EGUIA_CENTER);
1244                 m_fields.push_back(spec);
1245                 return;
1246         }
1247         errorstream<< "Invalid vertlabel element(" << parts.size() << "): '" << element << "'"  << std::endl;
1248 }
1249
1250 void GUIFormSpecMenu::parseImageButton(parserData* data,std::string element,
1251                 std::string type)
1252 {
1253         std::vector<std::string> parts = split(element,';');
1254
1255         if ((((parts.size() >= 5) && (parts.size() <= 8)) && (parts.size() != 6)) ||
1256                 ((parts.size() > 8) && (m_formspec_version > FORMSPEC_API_VERSION)))
1257         {
1258                 std::vector<std::string> v_pos = split(parts[0],',');
1259                 std::vector<std::string> v_geom = split(parts[1],',');
1260                 std::string image_name = parts[2];
1261                 std::string name = parts[3];
1262                 std::string label = parts[4];
1263
1264                 MY_CHECKPOS("imagebutton",0);
1265                 MY_CHECKGEOM("imagebutton",1);
1266
1267                 v2s32 pos = padding;
1268                 pos.X += stof(v_pos[0]) * (float)spacing.X;
1269                 pos.Y += stof(v_pos[1]) * (float)spacing.Y;
1270                 v2s32 geom;
1271                 geom.X = (stof(v_geom[0]) * (float)spacing.X)-(spacing.X-imgsize.X);
1272                 geom.Y = (stof(v_geom[1]) * (float)spacing.Y)-(spacing.Y-imgsize.Y);
1273
1274                 bool noclip     = false;
1275                 bool drawborder = true;
1276                 std::string pressed_image_name = "";
1277
1278                 if (parts.size() >= 7) {
1279                         if (parts[5] == "true")
1280                                 noclip = true;
1281                         if (parts[6] == "false")
1282                                 drawborder = false;
1283                 }
1284
1285                 if (parts.size() >= 8) {
1286                         pressed_image_name = parts[7];
1287                 }
1288
1289                 core::rect<s32> rect = core::rect<s32>(pos.X, pos.Y, pos.X+geom.X, pos.Y+geom.Y);
1290
1291                 if(!data->explicit_size)
1292                         errorstream<<"WARNING: invalid use of image_button without a size[] element"<<std::endl;
1293
1294                 image_name = unescape_string(image_name);
1295                 pressed_image_name = unescape_string(pressed_image_name);
1296                 label = unescape_string(label);
1297
1298                 std::wstring wlabel = utf8_to_wide(label);
1299
1300                 FieldSpec spec(
1301                         name,
1302                         wlabel,
1303                         utf8_to_wide(image_name),
1304                         258+m_fields.size()
1305                 );
1306                 spec.ftype = f_Button;
1307                 if(type == "image_button_exit")
1308                         spec.is_exit = true;
1309
1310                 video::ITexture *texture = 0;
1311                 video::ITexture *pressed_texture = 0;
1312                 texture = m_tsrc->getTexture(image_name);
1313                 if (pressed_image_name != "")
1314                         pressed_texture = m_tsrc->getTexture(pressed_image_name);
1315                 else
1316                         pressed_texture = texture;
1317
1318                 gui::IGUIButton *e = Environment->addButton(rect, this, spec.fid, spec.flabel.c_str());
1319
1320                 if (spec.fname == data->focused_fieldname) {
1321                         Environment->setFocus(e);
1322                 }
1323
1324                 e->setUseAlphaChannel(true);
1325                 e->setImage(guiScalingImageButton(
1326                         Environment->getVideoDriver(), texture, geom.X, geom.Y));
1327                 e->setPressedImage(guiScalingImageButton(
1328                         Environment->getVideoDriver(), pressed_texture, geom.X, geom.Y));
1329                 e->setScaleImage(true);
1330                 e->setNotClipped(noclip);
1331                 e->setDrawBorder(drawborder);
1332
1333                 m_fields.push_back(spec);
1334                 return;
1335         }
1336
1337         errorstream<< "Invalid imagebutton element(" << parts.size() << "): '" << element << "'"  << std::endl;
1338 }
1339
1340 void GUIFormSpecMenu::parseTabHeader(parserData* data,std::string element)
1341 {
1342         std::vector<std::string> parts = split(element,';');
1343
1344         if (((parts.size() == 4) || (parts.size() == 6)) ||
1345                 ((parts.size() > 6) && (m_formspec_version > FORMSPEC_API_VERSION)))
1346         {
1347                 std::vector<std::string> v_pos = split(parts[0],',');
1348                 std::string name = parts[1];
1349                 std::vector<std::string> buttons = split(parts[2],',');
1350                 std::string str_index = parts[3];
1351                 bool show_background = true;
1352                 bool show_border = true;
1353                 int tab_index = stoi(str_index) -1;
1354
1355                 MY_CHECKPOS("tabheader",0);
1356
1357                 if (parts.size() == 6) {
1358                         if (parts[4] == "true")
1359                                 show_background = false;
1360                         if (parts[5] == "false")
1361                                 show_border = false;
1362                 }
1363
1364                 FieldSpec spec(
1365                         name,
1366                         L"",
1367                         L"",
1368                         258+m_fields.size()
1369                 );
1370
1371                 spec.ftype = f_TabHeader;
1372
1373                 v2s32 pos(0,0);
1374                 pos.X += stof(v_pos[0]) * (float)spacing.X;
1375                 pos.Y += stof(v_pos[1]) * (float)spacing.Y - m_btn_height * 2;
1376                 v2s32 geom;
1377                 geom.X = DesiredRect.getWidth();
1378                 geom.Y = m_btn_height*2;
1379
1380                 core::rect<s32> rect = core::rect<s32>(pos.X, pos.Y, pos.X+geom.X,
1381                                 pos.Y+geom.Y);
1382
1383                 gui::IGUITabControl *e = Environment->addTabControl(rect, this,
1384                                 show_background, show_border, spec.fid);
1385                 e->setAlignment(irr::gui::EGUIA_UPPERLEFT, irr::gui::EGUIA_UPPERLEFT,
1386                                 irr::gui::EGUIA_UPPERLEFT, irr::gui::EGUIA_LOWERRIGHT);
1387                 e->setTabHeight(m_btn_height*2);
1388
1389                 if (spec.fname == data->focused_fieldname) {
1390                         Environment->setFocus(e);
1391                 }
1392
1393                 e->setNotClipped(true);
1394
1395                 for (unsigned int i = 0; i < buttons.size(); i++) {
1396                         e->addTab(utf8_to_wide(buttons[i]).c_str(), -1);
1397                 }
1398
1399                 if ((tab_index >= 0) &&
1400                                 (buttons.size() < INT_MAX) &&
1401                                 (tab_index < (int) buttons.size()))
1402                         e->setActiveTab(tab_index);
1403
1404                 m_fields.push_back(spec);
1405                 return;
1406         }
1407         errorstream << "Invalid TabHeader element(" << parts.size() << "): '"
1408                         << element << "'"  << std::endl;
1409 }
1410
1411 void GUIFormSpecMenu::parseItemImageButton(parserData* data,std::string element)
1412 {
1413
1414         if (m_gamedef == 0) {
1415                 errorstream <<
1416                                 "WARNING: invalid use of item_image_button with m_gamedef==0"
1417                                 << std::endl;
1418                 return;
1419         }
1420
1421         std::vector<std::string> parts = split(element,';');
1422
1423         if ((parts.size() == 5) ||
1424                 ((parts.size() > 5) && (m_formspec_version > FORMSPEC_API_VERSION)))
1425         {
1426                 std::vector<std::string> v_pos = split(parts[0],',');
1427                 std::vector<std::string> v_geom = split(parts[1],',');
1428                 std::string item_name = parts[2];
1429                 std::string name = parts[3];
1430                 std::string label = parts[4];
1431
1432                 MY_CHECKPOS("itemimagebutton",0);
1433                 MY_CHECKGEOM("itemimagebutton",1);
1434
1435                 v2s32 pos = padding;
1436                 pos.X += stof(v_pos[0]) * (float)spacing.X;
1437                 pos.Y += stof(v_pos[1]) * (float)spacing.Y;
1438                 v2s32 geom;
1439                 geom.X = (stof(v_geom[0]) * (float)spacing.X)-(spacing.X-imgsize.X);
1440                 geom.Y = (stof(v_geom[1]) * (float)spacing.Y)-(spacing.Y-imgsize.Y);
1441
1442                 core::rect<s32> rect = core::rect<s32>(pos.X, pos.Y, pos.X+geom.X, pos.Y+geom.Y);
1443
1444                 if(!data->explicit_size)
1445                         errorstream<<"WARNING: invalid use of item_image_button without a size[] element"<<std::endl;
1446
1447                 IItemDefManager *idef = m_gamedef->idef();
1448                 ItemStack item;
1449                 item.deSerialize(item_name, idef);
1450                 video::ITexture *texture = idef->getInventoryTexture(item.getDefinition(idef).name, m_gamedef);
1451
1452                 m_tooltips[name] =
1453                         TooltipSpec(item.getDefinition(idef).description,
1454                                                 m_default_tooltip_bgcolor,
1455                                                 m_default_tooltip_color);
1456
1457                 label = unescape_string(label);
1458                 FieldSpec spec(
1459                         name,
1460                         utf8_to_wide(label),
1461                         utf8_to_wide(item_name),
1462                         258 + m_fields.size()
1463                 );
1464
1465                 gui::IGUIButton *e = Environment->addButton(rect, this, spec.fid, spec.flabel.c_str());
1466
1467                 if (spec.fname == data->focused_fieldname) {
1468                         Environment->setFocus(e);
1469                 }
1470
1471                 e->setUseAlphaChannel(true);
1472                 e->setImage(guiScalingImageButton(Environment->getVideoDriver(), texture, geom.X, geom.Y));
1473                 e->setPressedImage(guiScalingImageButton(Environment->getVideoDriver(), texture, geom.X, geom.Y));
1474                 e->setScaleImage(true);
1475                 spec.ftype = f_Button;
1476                 rect+=data->basepos-padding;
1477                 spec.rect=rect;
1478                 m_fields.push_back(spec);
1479                 return;
1480         }
1481         errorstream<< "Invalid ItemImagebutton element(" << parts.size() << "): '" << element << "'"  << std::endl;
1482 }
1483
1484 void GUIFormSpecMenu::parseBox(parserData* data,std::string element)
1485 {
1486         std::vector<std::string> parts = split(element,';');
1487
1488         if ((parts.size() == 3) ||
1489                 ((parts.size() > 3) && (m_formspec_version > FORMSPEC_API_VERSION)))
1490         {
1491                 std::vector<std::string> v_pos = split(parts[0],',');
1492                 std::vector<std::string> v_geom = split(parts[1],',');
1493
1494                 MY_CHECKPOS("box",0);
1495                 MY_CHECKGEOM("box",1);
1496
1497                 v2s32 pos = padding + AbsoluteRect.UpperLeftCorner;
1498                 pos.X += stof(v_pos[0]) * (float) spacing.X;
1499                 pos.Y += stof(v_pos[1]) * (float) spacing.Y;
1500
1501                 v2s32 geom;
1502                 geom.X = stof(v_geom[0]) * (float)spacing.X;
1503                 geom.Y = stof(v_geom[1]) * (float)spacing.Y;
1504
1505                 video::SColor tmp_color;
1506
1507                 if (parseColorString(parts[2], tmp_color, false)) {
1508                         BoxDrawSpec spec(pos, geom, tmp_color);
1509
1510                         m_boxes.push_back(spec);
1511                 }
1512                 else {
1513                         errorstream<< "Invalid Box element(" << parts.size() << "): '" << element << "'  INVALID COLOR"  << std::endl;
1514                 }
1515                 return;
1516         }
1517         errorstream<< "Invalid Box element(" << parts.size() << "): '" << element << "'"  << std::endl;
1518 }
1519
1520 void GUIFormSpecMenu::parseBackgroundColor(parserData* data,std::string element)
1521 {
1522         std::vector<std::string> parts = split(element,';');
1523
1524         if (((parts.size() == 1) || (parts.size() == 2)) ||
1525                 ((parts.size() > 2) && (m_formspec_version > FORMSPEC_API_VERSION)))
1526         {
1527                 parseColorString(parts[0],m_bgcolor,false);
1528
1529                 if (parts.size() == 2) {
1530                         std::string fullscreen = parts[1];
1531                         m_bgfullscreen = is_yes(fullscreen);
1532                 }
1533                 return;
1534         }
1535         errorstream<< "Invalid bgcolor element(" << parts.size() << "): '" << element << "'"  << std::endl;
1536 }
1537
1538 void GUIFormSpecMenu::parseListColors(parserData* data,std::string element)
1539 {
1540         std::vector<std::string> parts = split(element,';');
1541
1542         if (((parts.size() == 2) || (parts.size() == 3) || (parts.size() == 5)) ||
1543                 ((parts.size() > 5) && (m_formspec_version > FORMSPEC_API_VERSION)))
1544         {
1545                 parseColorString(parts[0], m_slotbg_n, false);
1546                 parseColorString(parts[1], m_slotbg_h, false);
1547
1548                 if (parts.size() >= 3) {
1549                         if (parseColorString(parts[2], m_slotbordercolor, false)) {
1550                                 m_slotborder = true;
1551                         }
1552                 }
1553                 if (parts.size() == 5) {
1554                         video::SColor tmp_color;
1555
1556                         if (parseColorString(parts[3], tmp_color, false))
1557                                 m_default_tooltip_bgcolor = tmp_color;
1558                         if (parseColorString(parts[4], tmp_color, false))
1559                                 m_default_tooltip_color = tmp_color;
1560                 }
1561                 return;
1562         }
1563         errorstream<< "Invalid listcolors element(" << parts.size() << "): '" << element << "'"  << std::endl;
1564 }
1565
1566 void GUIFormSpecMenu::parseTooltip(parserData* data, std::string element)
1567 {
1568         std::vector<std::string> parts = split(element,';');
1569         if (parts.size() == 2) {
1570                 std::string name = parts[0];
1571                 m_tooltips[name] = TooltipSpec(unescape_string(parts[1]),
1572                         m_default_tooltip_bgcolor, m_default_tooltip_color);
1573                 return;
1574         } else if (parts.size() == 4) {
1575                 std::string name = parts[0];
1576                 video::SColor tmp_color1, tmp_color2;
1577                 if ( parseColorString(parts[2], tmp_color1, false) && parseColorString(parts[3], tmp_color2, false) ) {
1578                         m_tooltips[name] = TooltipSpec(unescape_string(parts[1]),
1579                                 tmp_color1, tmp_color2);
1580                         return;
1581                 }
1582         }
1583         errorstream<< "Invalid tooltip element(" << parts.size() << "): '" << element << "'"  << std::endl;
1584 }
1585
1586 bool GUIFormSpecMenu::parseVersionDirect(std::string data)
1587 {
1588         //some prechecks
1589         if (data == "")
1590                 return false;
1591
1592         std::vector<std::string> parts = split(data,'[');
1593
1594         if (parts.size() < 2) {
1595                 return false;
1596         }
1597
1598         if (parts[0] != "formspec_version") {
1599                 return false;
1600         }
1601
1602         if (is_number(parts[1])) {
1603                 m_formspec_version = mystoi(parts[1]);
1604                 return true;
1605         }
1606
1607         return false;
1608 }
1609
1610 bool GUIFormSpecMenu::parseSizeDirect(parserData* data, std::string element)
1611 {
1612         if (element == "")
1613                 return false;
1614
1615         std::vector<std::string> parts = split(element,'[');
1616
1617         if (parts.size() < 2)
1618                 return false;
1619
1620         std::string type = trim(parts[0]);
1621         std::string description = trim(parts[1]);
1622
1623         if (type != "size" && type != "invsize")
1624                 return false;
1625
1626         if (type == "invsize")
1627                 log_deprecated("Deprecated formspec element \"invsize\" is used");
1628
1629         parseSize(data, description);
1630
1631         return true;
1632 }
1633
1634 void GUIFormSpecMenu::parseElement(parserData* data, std::string element)
1635 {
1636         //some prechecks
1637         if (element == "")
1638                 return;
1639
1640         std::vector<std::string> parts = split(element,'[');
1641
1642         // ugly workaround to keep compatibility
1643         if (parts.size() > 2) {
1644                 if (trim(parts[0]) == "image") {
1645                         for (unsigned int i=2;i< parts.size(); i++) {
1646                                 parts[1] += "[" + parts[i];
1647                         }
1648                 }
1649                 else { return; }
1650         }
1651
1652         if (parts.size() < 2) {
1653                 return;
1654         }
1655
1656         std::string type = trim(parts[0]);
1657         std::string description = trim(parts[1]);
1658
1659         if (type == "list") {
1660                 parseList(data,description);
1661                 return;
1662         }
1663
1664         if (type == "checkbox") {
1665                 parseCheckbox(data,description);
1666                 return;
1667         }
1668
1669         if (type == "image") {
1670                 parseImage(data,description);
1671                 return;
1672         }
1673
1674         if (type == "item_image") {
1675                 parseItemImage(data,description);
1676                 return;
1677         }
1678
1679         if ((type == "button") || (type == "button_exit")) {
1680                 parseButton(data,description,type);
1681                 return;
1682         }
1683
1684         if (type == "background") {
1685                 parseBackground(data,description);
1686                 return;
1687         }
1688
1689         if (type == "tableoptions"){
1690                 parseTableOptions(data,description);
1691                 return;
1692         }
1693
1694         if (type == "tablecolumns"){
1695                 parseTableColumns(data,description);
1696                 return;
1697         }
1698
1699         if (type == "table"){
1700                 parseTable(data,description);
1701                 return;
1702         }
1703
1704         if (type == "textlist"){
1705                 parseTextList(data,description);
1706                 return;
1707         }
1708
1709         if (type == "dropdown"){
1710                 parseDropDown(data,description);
1711                 return;
1712         }
1713
1714         if (type == "pwdfield") {
1715                 parsePwdField(data,description);
1716                 return;
1717         }
1718
1719         if ((type == "field") || (type == "textarea")){
1720                 parseField(data,description,type);
1721                 return;
1722         }
1723
1724         if (type == "label") {
1725                 parseLabel(data,description);
1726                 return;
1727         }
1728
1729         if (type == "vertlabel") {
1730                 parseVertLabel(data,description);
1731                 return;
1732         }
1733
1734         if (type == "item_image_button") {
1735                 parseItemImageButton(data,description);
1736                 return;
1737         }
1738
1739         if ((type == "image_button") || (type == "image_button_exit")) {
1740                 parseImageButton(data,description,type);
1741                 return;
1742         }
1743
1744         if (type == "tabheader") {
1745                 parseTabHeader(data,description);
1746                 return;
1747         }
1748
1749         if (type == "box") {
1750                 parseBox(data,description);
1751                 return;
1752         }
1753
1754         if (type == "bgcolor") {
1755                 parseBackgroundColor(data,description);
1756                 return;
1757         }
1758
1759         if (type == "listcolors") {
1760                 parseListColors(data,description);
1761                 return;
1762         }
1763
1764         if (type == "tooltip") {
1765                 parseTooltip(data,description);
1766                 return;
1767         }
1768
1769         if (type == "scrollbar") {
1770                 parseScrollBar(data, description);
1771                 return;
1772         }
1773
1774         // Ignore others
1775         infostream
1776                 << "Unknown DrawSpec: type="<<type<<", data=\""<<description<<"\""
1777                 <<std::endl;
1778 }
1779
1780 void GUIFormSpecMenu::regenerateGui(v2u32 screensize)
1781 {
1782         /* useless to regenerate without a screensize */
1783         if ((screensize.X <= 0) || (screensize.Y <= 0)) {
1784                 return;
1785         }
1786
1787         parserData mydata;
1788
1789         //preserve tables
1790         for (u32 i = 0; i < m_tables.size(); ++i) {
1791                 std::string tablename = m_tables[i].first.fname;
1792                 GUITable *table = m_tables[i].second;
1793                 mydata.table_dyndata[tablename] = table->getDynamicData();
1794         }
1795
1796         //set focus
1797         if (!m_focused_element.empty())
1798                 mydata.focused_fieldname = m_focused_element;
1799
1800         //preserve focus
1801         gui::IGUIElement *focused_element = Environment->getFocus();
1802         if (focused_element && focused_element->getParent() == this) {
1803                 s32 focused_id = focused_element->getID();
1804                 if (focused_id > 257) {
1805                         for (u32 i=0; i<m_fields.size(); i++) {
1806                                 if (m_fields[i].fid == focused_id) {
1807                                         mydata.focused_fieldname =
1808                                                 m_fields[i].fname;
1809                                         break;
1810                                 }
1811                         }
1812                 }
1813         }
1814
1815         // Remove children
1816         removeChildren();
1817
1818         for (u32 i = 0; i < m_tables.size(); ++i) {
1819                 GUITable *table = m_tables[i].second;
1820                 table->drop();
1821         }
1822
1823         mydata.size= v2s32(100,100);
1824         mydata.screensize = screensize;
1825
1826         // Base position of contents of form
1827         mydata.basepos = getBasePos();
1828
1829         /* Convert m_init_draw_spec to m_inventorylists */
1830
1831         m_inventorylists.clear();
1832         m_images.clear();
1833         m_backgrounds.clear();
1834         m_itemimages.clear();
1835         m_tables.clear();
1836         m_checkboxes.clear();
1837         m_scrollbars.clear();
1838         m_fields.clear();
1839         m_boxes.clear();
1840         m_tooltips.clear();
1841
1842         // Set default values (fits old formspec values)
1843         m_bgcolor = video::SColor(140,0,0,0);
1844         m_bgfullscreen = false;
1845
1846         m_slotbg_n = video::SColor(255,128,128,128);
1847         m_slotbg_h = video::SColor(255,192,192,192);
1848
1849         m_default_tooltip_bgcolor = video::SColor(255,110,130,60);
1850         m_default_tooltip_color = video::SColor(255,255,255,255);
1851
1852         m_slotbordercolor = video::SColor(200,0,0,0);
1853         m_slotborder = false;
1854
1855         m_clipbackground = false;
1856         // Add tooltip
1857         {
1858                 assert(m_tooltip_element == NULL);
1859                 // Note: parent != this so that the tooltip isn't clipped by the menu rectangle
1860                 m_tooltip_element = Environment->addStaticText(L"",core::rect<s32>(0,0,110,18));
1861                 m_tooltip_element->enableOverrideColor(true);
1862                 m_tooltip_element->setBackgroundColor(m_default_tooltip_bgcolor);
1863                 m_tooltip_element->setDrawBackground(true);
1864                 m_tooltip_element->setDrawBorder(true);
1865                 m_tooltip_element->setOverrideColor(m_default_tooltip_color);
1866                 m_tooltip_element->setTextAlignment(gui::EGUIA_CENTER, gui::EGUIA_CENTER);
1867                 m_tooltip_element->setWordWrap(false);
1868                 //we're not parent so no autograb for this one!
1869                 m_tooltip_element->grab();
1870         }
1871
1872         std::vector<std::string> elements = split(m_formspec_string,']');
1873         unsigned int i = 0;
1874
1875         /* try to read version from first element only */
1876         if (elements.size() >= 1) {
1877                 if ( parseVersionDirect(elements[0]) ) {
1878                         i++;
1879                 }
1880         }
1881
1882         /* we need size first in order to calculate image scale */
1883         mydata.explicit_size = false;
1884         for (; i< elements.size(); i++) {
1885                 if (!parseSizeDirect(&mydata, elements[i])) {
1886                         break;
1887                 }
1888         }
1889
1890         if (mydata.explicit_size) {
1891                 // compute scaling for specified form size
1892                 if (m_lock) {
1893                         v2u32 current_screensize = m_device->getVideoDriver()->getScreenSize();
1894                         v2u32 delta = current_screensize - m_lockscreensize;
1895
1896                         if (current_screensize.Y > m_lockscreensize.Y)
1897                                 delta.Y /= 2;
1898                         else
1899                                 delta.Y = 0;
1900
1901                         if (current_screensize.X > m_lockscreensize.X)
1902                                 delta.X /= 2;
1903                         else
1904                                 delta.X = 0;
1905
1906                         offset = v2s32(delta.X,delta.Y);
1907
1908                         mydata.screensize = m_lockscreensize;
1909                 } else {
1910                         offset = v2s32(0,0);
1911                 }
1912
1913                 double gui_scaling = g_settings->getFloat("gui_scaling");
1914                 double screen_dpi = porting::getDisplayDensity() * 96;
1915
1916                 double use_imgsize;
1917                 if (m_lock) {
1918                         // In fixed-size mode, inventory image size
1919                         // is 0.53 inch multiplied by the gui_scaling
1920                         // config parameter.  This magic size is chosen
1921                         // to make the main menu (15.5 inventory images
1922                         // wide, including border) just fit into the
1923                         // default window (800 pixels wide) at 96 DPI
1924                         // and default scaling (1.00).
1925                         use_imgsize = 0.5555 * screen_dpi * gui_scaling;
1926                 } else {
1927                         // In variable-size mode, we prefer to make the
1928                         // inventory image size 1/15 of screen height,
1929                         // multiplied by the gui_scaling config parameter.
1930                         // If the preferred size won't fit the whole
1931                         // form on the screen, either horizontally or
1932                         // vertically, then we scale it down to fit.
1933                         // (The magic numbers in the computation of what
1934                         // fits arise from the scaling factors in the
1935                         // following stanza, including the form border,
1936                         // help text space, and 0.1 inventory slot spare.)
1937                         // However, a minimum size is also set, that
1938                         // the image size can't be less than 0.3 inch
1939                         // multiplied by gui_scaling, even if this means
1940                         // the form doesn't fit the screen.
1941                         double prefer_imgsize = mydata.screensize.Y / 15 *
1942                                                         gui_scaling;
1943                         double fitx_imgsize = mydata.screensize.X /
1944                                 ((5.0/4.0) * (0.5 + mydata.invsize.X));
1945                         double fity_imgsize = mydata.screensize.Y /
1946                                 ((15.0/13.0) * (0.85 * mydata.invsize.Y));
1947                         double screen_dpi = porting::getDisplayDensity() * 96;
1948                         double min_imgsize = 0.3 * screen_dpi * gui_scaling;
1949                         use_imgsize = MYMAX(min_imgsize, MYMIN(prefer_imgsize,
1950                                 MYMIN(fitx_imgsize, fity_imgsize)));
1951                 }
1952
1953                 // Everything else is scaled in proportion to the
1954                 // inventory image size.  The inventory slot spacing
1955                 // is 5/4 image size horizontally and 15/13 image size
1956                 // vertically.  The padding around the form (incorporating
1957                 // the border of the outer inventory slots) is 3/8
1958                 // image size.  Font height (baseline to baseline)
1959                 // is 2/5 vertical inventory slot spacing, and button
1960                 // half-height is 7/8 of font height.
1961                 imgsize = v2s32(use_imgsize, use_imgsize);
1962                 spacing = v2s32(use_imgsize*5.0/4, use_imgsize*15.0/13);
1963                 padding = v2s32(use_imgsize*3.0/8, use_imgsize*3.0/8);
1964                 m_btn_height = use_imgsize*15.0/13 * 0.35;
1965
1966                 m_font = g_fontengine->getFont();
1967
1968                 mydata.size = v2s32(
1969                         padding.X*2+spacing.X*(mydata.invsize.X-1.0)+imgsize.X,
1970                         padding.Y*2+spacing.Y*(mydata.invsize.Y-1.0)+imgsize.Y + m_btn_height*2.0/3.0
1971                 );
1972                 DesiredRect = mydata.rect = core::rect<s32>(
1973                                 mydata.screensize.X/2 - mydata.size.X/2 + offset.X,
1974                                 mydata.screensize.Y/2 - mydata.size.Y/2 + offset.Y,
1975                                 mydata.screensize.X/2 + mydata.size.X/2 + offset.X,
1976                                 mydata.screensize.Y/2 + mydata.size.Y/2 + offset.Y
1977                 );
1978         } else {
1979                 // Non-size[] form must consist only of text fields and
1980                 // implicit "Proceed" button.  Use default font, and
1981                 // temporary form size which will be recalculated below.
1982                 m_font = g_fontengine->getFont();
1983                 m_btn_height = font_line_height(m_font) * 0.875;
1984                 DesiredRect = core::rect<s32>(
1985                         mydata.screensize.X/2 - 580/2,
1986                         mydata.screensize.Y/2 - 300/2,
1987                         mydata.screensize.X/2 + 580/2,
1988                         mydata.screensize.Y/2 + 300/2
1989                 );
1990         }
1991         recalculateAbsolutePosition(false);
1992         mydata.basepos = getBasePos();
1993         m_tooltip_element->setOverrideFont(m_font);
1994
1995         gui::IGUISkin* skin = Environment->getSkin();
1996         sanity_check(skin != NULL);
1997         gui::IGUIFont *old_font = skin->getFont();
1998         skin->setFont(m_font);
1999
2000         for (; i< elements.size(); i++) {
2001                 parseElement(&mydata, elements[i]);
2002         }
2003
2004         // If there are fields without explicit size[], add a "Proceed"
2005         // button and adjust size to fit all the fields.
2006         if (m_fields.size() && !mydata.explicit_size) {
2007                 mydata.rect = core::rect<s32>(
2008                                 mydata.screensize.X/2 - 580/2,
2009                                 mydata.screensize.Y/2 - 300/2,
2010                                 mydata.screensize.X/2 + 580/2,
2011                                 mydata.screensize.Y/2 + 240/2+(m_fields.size()*60)
2012                 );
2013                 DesiredRect = mydata.rect;
2014                 recalculateAbsolutePosition(false);
2015                 mydata.basepos = getBasePos();
2016
2017                 {
2018                         v2s32 pos = mydata.basepos;
2019                         pos.Y = ((m_fields.size()+2)*60);
2020
2021                         v2s32 size = DesiredRect.getSize();
2022                         mydata.rect =
2023                                         core::rect<s32>(size.X/2-70, pos.Y,
2024                                                         (size.X/2-70)+140, pos.Y + (m_btn_height*2));
2025                         const wchar_t *text = wgettext("Proceed");
2026                         Environment->addButton(mydata.rect, this, 257, text);
2027                         delete[] text;
2028                 }
2029
2030         }
2031
2032         //set initial focus if parser didn't set it
2033         focused_element = Environment->getFocus();
2034         if (!focused_element
2035                         || !isMyChild(focused_element)
2036                         || focused_element->getType() == gui::EGUIET_TAB_CONTROL)
2037                 setInitialFocus();
2038
2039         skin->setFont(old_font);
2040 }
2041
2042 #ifdef __ANDROID__
2043 bool GUIFormSpecMenu::getAndroidUIInput()
2044 {
2045         /* no dialog shown */
2046         if (m_JavaDialogFieldName == "") {
2047                 return false;
2048         }
2049
2050         /* still waiting */
2051         if (porting::getInputDialogState() == -1) {
2052                 return true;
2053         }
2054
2055         std::string fieldname = m_JavaDialogFieldName;
2056         m_JavaDialogFieldName = "";
2057
2058         /* no value abort dialog processing */
2059         if (porting::getInputDialogState() != 0) {
2060                 return false;
2061         }
2062
2063         for(std::vector<FieldSpec>::iterator iter =  m_fields.begin();
2064                         iter != m_fields.end(); iter++) {
2065
2066                 if (iter->fname != fieldname) {
2067                         continue;
2068                 }
2069                 IGUIElement* tochange = getElementFromId(iter->fid);
2070
2071                 if (tochange == 0) {
2072                         return false;
2073                 }
2074
2075                 if (tochange->getType() != irr::gui::EGUIET_EDIT_BOX) {
2076                         return false;
2077                 }
2078
2079                 std::string text = porting::getInputDialogValue();
2080
2081                 ((gui::IGUIEditBox*) tochange)->
2082                         setText(utf8_to_wide(text).c_str());
2083         }
2084         return false;
2085 }
2086 #endif
2087
2088 GUIFormSpecMenu::ItemSpec GUIFormSpecMenu::getItemAtPos(v2s32 p) const
2089 {
2090         core::rect<s32> imgrect(0,0,imgsize.X,imgsize.Y);
2091
2092         for(u32 i=0; i<m_inventorylists.size(); i++)
2093         {
2094                 const ListDrawSpec &s = m_inventorylists[i];
2095
2096                 for(s32 i=0; i<s.geom.X*s.geom.Y; i++) {
2097                         s32 item_i = i + s.start_item_i;
2098                         s32 x = (i%s.geom.X) * spacing.X;
2099                         s32 y = (i/s.geom.X) * spacing.Y;
2100                         v2s32 p0(x,y);
2101                         core::rect<s32> rect = imgrect + s.pos + p0;
2102                         if(rect.isPointInside(p))
2103                         {
2104                                 return ItemSpec(s.inventoryloc, s.listname, item_i);
2105                         }
2106                 }
2107         }
2108
2109         return ItemSpec(InventoryLocation(), "", -1);
2110 }
2111
2112 void GUIFormSpecMenu::drawList(const ListDrawSpec &s, int phase)
2113 {
2114         video::IVideoDriver* driver = Environment->getVideoDriver();
2115
2116         Inventory *inv = m_invmgr->getInventory(s.inventoryloc);
2117         if(!inv){
2118                 infostream<<"GUIFormSpecMenu::drawList(): WARNING: "
2119                                 <<"The inventory location "
2120                                 <<"\""<<s.inventoryloc.dump()<<"\" doesn't exist"
2121                                 <<std::endl;
2122                 return;
2123         }
2124         InventoryList *ilist = inv->getList(s.listname);
2125         if(!ilist){
2126                 infostream<<"GUIFormSpecMenu::drawList(): WARNING: "
2127                                 <<"The inventory list \""<<s.listname<<"\" @ \""
2128                                 <<s.inventoryloc.dump()<<"\" doesn't exist"
2129                                 <<std::endl;
2130                 return;
2131         }
2132
2133         core::rect<s32> imgrect(0,0,imgsize.X,imgsize.Y);
2134
2135         for(s32 i=0; i<s.geom.X*s.geom.Y; i++)
2136         {
2137                 s32 item_i = i + s.start_item_i;
2138                 if(item_i >= (s32) ilist->getSize())
2139                         break;
2140                 s32 x = (i%s.geom.X) * spacing.X;
2141                 s32 y = (i/s.geom.X) * spacing.Y;
2142                 v2s32 p(x,y);
2143                 core::rect<s32> rect = imgrect + s.pos + p;
2144                 ItemStack item;
2145                 if(ilist)
2146                         item = ilist->getItem(item_i);
2147
2148                 bool selected = m_selected_item
2149                         && m_invmgr->getInventory(m_selected_item->inventoryloc) == inv
2150                         && m_selected_item->listname == s.listname
2151                         && m_selected_item->i == item_i;
2152                 bool hovering = rect.isPointInside(m_pointer);
2153
2154                 if(phase == 0)
2155                 {
2156                         if(hovering)
2157                                 driver->draw2DRectangle(m_slotbg_h, rect, &AbsoluteClippingRect);
2158                         else
2159                                 driver->draw2DRectangle(m_slotbg_n, rect, &AbsoluteClippingRect);
2160                 }
2161
2162                 //Draw inv slot borders
2163                 if (m_slotborder) {
2164                         s32 x1 = rect.UpperLeftCorner.X;
2165                         s32 y1 = rect.UpperLeftCorner.Y;
2166                         s32 x2 = rect.LowerRightCorner.X;
2167                         s32 y2 = rect.LowerRightCorner.Y;
2168                         s32 border = 1;
2169                         driver->draw2DRectangle(m_slotbordercolor,
2170                                 core::rect<s32>(v2s32(x1 - border, y1 - border),
2171                                                                 v2s32(x2 + border, y1)), NULL);
2172                         driver->draw2DRectangle(m_slotbordercolor,
2173                                 core::rect<s32>(v2s32(x1 - border, y2),
2174                                                                 v2s32(x2 + border, y2 + border)), NULL);
2175                         driver->draw2DRectangle(m_slotbordercolor,
2176                                 core::rect<s32>(v2s32(x1 - border, y1),
2177                                                                 v2s32(x1, y2)), NULL);
2178                         driver->draw2DRectangle(m_slotbordercolor,
2179                                 core::rect<s32>(v2s32(x2, y1),
2180                                                                 v2s32(x2 + border, y2)), NULL);
2181                 }
2182
2183                 if(phase == 1)
2184                 {
2185                         // Draw item stack
2186                         if(selected)
2187                         {
2188                                 item.takeItem(m_selected_amount);
2189                         }
2190                         if(!item.empty())
2191                         {
2192                                 drawItemStack(driver, m_font, item,
2193                                                 rect, &AbsoluteClippingRect, m_gamedef);
2194                         }
2195
2196                         // Draw tooltip
2197                         std::string tooltip_text = "";
2198                         if (hovering && !m_selected_item)
2199                                 tooltip_text = item.getDefinition(m_gamedef->idef()).description;
2200                         if (tooltip_text != "") {
2201                                 std::vector<std::string> tt_rows = str_split(tooltip_text, '\n');
2202                                 m_tooltip_element->setBackgroundColor(m_default_tooltip_bgcolor);
2203                                 m_tooltip_element->setOverrideColor(m_default_tooltip_color);
2204                                 m_tooltip_element->setVisible(true);
2205                                 this->bringToFront(m_tooltip_element);
2206                                 m_tooltip_element->setText(utf8_to_wide(tooltip_text).c_str());
2207                                 s32 tooltip_width = m_tooltip_element->getTextWidth() + m_btn_height;
2208                                 s32 tooltip_height = m_tooltip_element->getTextHeight() * tt_rows.size() + 5;
2209                                 v2u32 screenSize = driver->getScreenSize();
2210                                 int tooltip_offset_x = m_btn_height;
2211                                 int tooltip_offset_y = m_btn_height;
2212 #ifdef __ANDROID__
2213                                 tooltip_offset_x *= 3;
2214                                 tooltip_offset_y  = 0;
2215                                 if (m_pointer.X > (s32)screenSize.X / 2)
2216                                         tooltip_offset_x = (tooltip_offset_x + tooltip_width) * -1;
2217 #endif
2218                                 s32 tooltip_x = m_pointer.X + tooltip_offset_x;
2219                                 s32 tooltip_y = m_pointer.Y + tooltip_offset_y;
2220                                 if (tooltip_x + tooltip_width > (s32)screenSize.X)
2221                                         tooltip_x = (s32)screenSize.X - tooltip_width  - m_btn_height;
2222                                 if (tooltip_y + tooltip_height > (s32)screenSize.Y)
2223                                         tooltip_y = (s32)screenSize.Y - tooltip_height - m_btn_height;
2224                                 m_tooltip_element->setRelativePosition(core::rect<s32>(
2225                                                 core::position2d<s32>(tooltip_x, tooltip_y),
2226                                                 core::dimension2d<s32>(tooltip_width, tooltip_height)));
2227                         }
2228                 }
2229         }
2230 }
2231
2232 void GUIFormSpecMenu::drawSelectedItem()
2233 {
2234         if(!m_selected_item)
2235                 return;
2236
2237         video::IVideoDriver* driver = Environment->getVideoDriver();
2238
2239         Inventory *inv = m_invmgr->getInventory(m_selected_item->inventoryloc);
2240         sanity_check(inv);
2241         InventoryList *list = inv->getList(m_selected_item->listname);
2242         sanity_check(list);
2243         ItemStack stack = list->getItem(m_selected_item->i);
2244         stack.count = m_selected_amount;
2245
2246         core::rect<s32> imgrect(0,0,imgsize.X,imgsize.Y);
2247         core::rect<s32> rect = imgrect + (m_pointer - imgrect.getCenter());
2248         drawItemStack(driver, m_font, stack, rect, NULL, m_gamedef);
2249 }
2250
2251 void GUIFormSpecMenu::drawMenu()
2252 {
2253         if(m_form_src){
2254                 std::string newform = m_form_src->getForm();
2255                 if(newform != m_formspec_string){
2256                         m_formspec_string = newform;
2257                         regenerateGui(m_screensize_old);
2258                 }
2259         }
2260
2261         gui::IGUISkin* skin = Environment->getSkin();
2262         sanity_check(skin != NULL);
2263         gui::IGUIFont *old_font = skin->getFont();
2264         skin->setFont(m_font);
2265
2266         updateSelectedItem();
2267
2268         video::IVideoDriver* driver = Environment->getVideoDriver();
2269
2270         v2u32 screenSize = driver->getScreenSize();
2271         core::rect<s32> allbg(0, 0, screenSize.X ,      screenSize.Y);
2272         if (m_bgfullscreen)
2273                 driver->draw2DRectangle(m_bgcolor, allbg, &allbg);
2274         else
2275                 driver->draw2DRectangle(m_bgcolor, AbsoluteRect, &AbsoluteClippingRect);
2276
2277         m_tooltip_element->setVisible(false);
2278
2279         /*
2280                 Draw backgrounds
2281         */
2282         for(u32 i=0; i<m_backgrounds.size(); i++)
2283         {
2284                 const ImageDrawSpec &spec = m_backgrounds[i];
2285                 video::ITexture *texture = m_tsrc->getTexture(spec.name);
2286
2287                 if (texture != 0) {
2288                         // Image size on screen
2289                         core::rect<s32> imgrect(0, 0, spec.geom.X, spec.geom.Y);
2290                         // Image rectangle on screen
2291                         core::rect<s32> rect = imgrect + spec.pos;
2292
2293                         if (m_clipbackground) {
2294                                 core::dimension2d<s32> absrec_size = AbsoluteRect.getSize();
2295                                 rect = core::rect<s32>(AbsoluteRect.UpperLeftCorner.X - spec.pos.X,
2296                                                                         AbsoluteRect.UpperLeftCorner.Y - spec.pos.Y,
2297                                                                         AbsoluteRect.UpperLeftCorner.X + absrec_size.Width + spec.pos.X,
2298                                                                         AbsoluteRect.UpperLeftCorner.Y + absrec_size.Height + spec.pos.Y);
2299                         }
2300
2301                         const video::SColor color(255,255,255,255);
2302                         const video::SColor colors[] = {color,color,color,color};
2303                         draw2DImageFilterScaled(driver, texture, rect,
2304                                 core::rect<s32>(core::position2d<s32>(0,0),
2305                                                 core::dimension2di(texture->getOriginalSize())),
2306                                 NULL/*&AbsoluteClippingRect*/, colors, true);
2307                 }
2308                 else {
2309                         errorstream << "GUIFormSpecMenu::drawMenu() Draw backgrounds unable to load texture:" << std::endl;
2310                         errorstream << "\t" << spec.name << std::endl;
2311                 }
2312         }
2313
2314         /*
2315                 Draw Boxes
2316         */
2317         for(u32 i=0; i<m_boxes.size(); i++)
2318         {
2319                 const BoxDrawSpec &spec = m_boxes[i];
2320
2321                 irr::video::SColor todraw = spec.color;
2322
2323                 todraw.setAlpha(140);
2324
2325                 core::rect<s32> rect(spec.pos.X,spec.pos.Y,
2326                                                         spec.pos.X + spec.geom.X,spec.pos.Y + spec.geom.Y);
2327
2328                 driver->draw2DRectangle(todraw, rect, 0);
2329         }
2330         /*
2331                 Draw images
2332         */
2333         for(u32 i=0; i<m_images.size(); i++)
2334         {
2335                 const ImageDrawSpec &spec = m_images[i];
2336                 video::ITexture *texture = m_tsrc->getTexture(spec.name);
2337
2338                 if (texture != 0) {
2339                         const core::dimension2d<u32>& img_origsize = texture->getOriginalSize();
2340                         // Image size on screen
2341                         core::rect<s32> imgrect;
2342
2343                         if (spec.scale)
2344                                 imgrect = core::rect<s32>(0,0,spec.geom.X, spec.geom.Y);
2345                         else {
2346
2347                                 imgrect = core::rect<s32>(0,0,img_origsize.Width,img_origsize.Height);
2348                         }
2349                         // Image rectangle on screen
2350                         core::rect<s32> rect = imgrect + spec.pos;
2351                         const video::SColor color(255,255,255,255);
2352                         const video::SColor colors[] = {color,color,color,color};
2353                         draw2DImageFilterScaled(driver, texture, rect,
2354                                 core::rect<s32>(core::position2d<s32>(0,0),img_origsize),
2355                                 NULL/*&AbsoluteClippingRect*/, colors, true);
2356                 }
2357                 else {
2358                         errorstream << "GUIFormSpecMenu::drawMenu() Draw images unable to load texture:" << std::endl;
2359                         errorstream << "\t" << spec.name << std::endl;
2360                 }
2361         }
2362
2363         /*
2364                 Draw item images
2365         */
2366         for(u32 i=0; i<m_itemimages.size(); i++)
2367         {
2368                 if (m_gamedef == 0)
2369                         break;
2370
2371                 const ImageDrawSpec &spec = m_itemimages[i];
2372                 IItemDefManager *idef = m_gamedef->idef();
2373                 ItemStack item;
2374                 item.deSerialize(spec.name, idef);
2375                 video::ITexture *texture = idef->getInventoryTexture(item.getDefinition(idef).name, m_gamedef);
2376                 // Image size on screen
2377                 core::rect<s32> imgrect(0, 0, spec.geom.X, spec.geom.Y);
2378                 // Image rectangle on screen
2379                 core::rect<s32> rect = imgrect + spec.pos;
2380                 const video::SColor color(255,255,255,255);
2381                 const video::SColor colors[] = {color,color,color,color};
2382                 draw2DImageFilterScaled(driver, texture, rect,
2383                         core::rect<s32>(core::position2d<s32>(0,0),
2384                                         core::dimension2di(texture->getOriginalSize())),
2385                         NULL/*&AbsoluteClippingRect*/, colors, true);
2386         }
2387
2388         /*
2389                 Draw items
2390                 Phase 0: Item slot rectangles
2391                 Phase 1: Item images; prepare tooltip
2392         */
2393         int start_phase=0;
2394         for(int phase=start_phase; phase<=1; phase++)
2395         for(u32 i=0; i<m_inventorylists.size(); i++)
2396         {
2397                 drawList(m_inventorylists[i], phase);
2398         }
2399
2400         /*
2401                 Call base class
2402         */
2403         gui::IGUIElement::draw();
2404
2405 /* TODO find way to show tooltips on touchscreen */
2406 #ifndef HAVE_TOUCHSCREENGUI
2407         m_pointer = m_device->getCursorControl()->getPosition();
2408 #endif
2409
2410         /*
2411                 Draw fields/buttons tooltips
2412         */
2413         gui::IGUIElement *hovered =
2414                         Environment->getRootGUIElement()->getElementFromPoint(m_pointer);
2415
2416         if (hovered != NULL) {
2417                 s32 id = hovered->getID();
2418
2419                 u32 delta = 0;
2420                 if (id == -1) {
2421                         m_old_tooltip_id = id;
2422                         m_old_tooltip = "";
2423                 } else {
2424                         if (id == m_old_tooltip_id) {
2425                                 delta = porting::getDeltaMs(m_hovered_time, getTimeMs());
2426                         } else {
2427                                 m_hovered_time = getTimeMs();
2428                                 m_old_tooltip_id = id;
2429                         }
2430                 }
2431
2432                 if (id != -1 && delta >= m_tooltip_show_delay) {
2433                         for(std::vector<FieldSpec>::iterator iter =  m_fields.begin();
2434                                         iter != m_fields.end(); iter++) {
2435                                 if ( (iter->fid == id) && (m_tooltips[iter->fname].tooltip != "") ){
2436                                         if (m_old_tooltip != m_tooltips[iter->fname].tooltip) {
2437                                                 m_old_tooltip = m_tooltips[iter->fname].tooltip;
2438                                                 m_tooltip_element->setText(utf8_to_wide(m_tooltips[iter->fname].tooltip).c_str());
2439                                                 std::vector<std::string> tt_rows = str_split(m_tooltips[iter->fname].tooltip, '\n');
2440                                                 s32 tooltip_width = m_tooltip_element->getTextWidth() + m_btn_height;
2441                                                 s32 tooltip_height = m_tooltip_element->getTextHeight() * tt_rows.size() + 5;
2442                                                 int tooltip_offset_x = m_btn_height;
2443                                                 int tooltip_offset_y = m_btn_height;
2444 #ifdef __ANDROID__
2445                                                 tooltip_offset_x *= 3;
2446                                                 tooltip_offset_y  = 0;
2447                                                 if (m_pointer.X > (s32)screenSize.X / 2)
2448                                                         tooltip_offset_x = (tooltip_offset_x + tooltip_width) * -1;
2449 #endif
2450                                                 s32 tooltip_x = m_pointer.X + tooltip_offset_x;
2451                                                 s32 tooltip_y = m_pointer.Y + tooltip_offset_y;
2452                                                 if (tooltip_x + tooltip_width > (s32)screenSize.X)
2453                                                         tooltip_x = (s32)screenSize.X - tooltip_width  - m_btn_height;
2454                                                 if (tooltip_y + tooltip_height > (s32)screenSize.Y)
2455                                                         tooltip_y = (s32)screenSize.Y - tooltip_height - m_btn_height;
2456                                                 m_tooltip_element->setRelativePosition(core::rect<s32>(
2457                                                 core::position2d<s32>(tooltip_x, tooltip_y),
2458                                                 core::dimension2d<s32>(tooltip_width, tooltip_height)));
2459                                         }
2460                                         m_tooltip_element->setBackgroundColor(m_tooltips[iter->fname].bgcolor);
2461                                         m_tooltip_element->setOverrideColor(m_tooltips[iter->fname].color);
2462                                         m_tooltip_element->setVisible(true);
2463                                         this->bringToFront(m_tooltip_element);
2464                                         break;
2465                                 }
2466                         }
2467                 }
2468         }
2469
2470         /*
2471                 Draw dragged item stack
2472         */
2473         drawSelectedItem();
2474
2475         skin->setFont(old_font);
2476 }
2477
2478 void GUIFormSpecMenu::updateSelectedItem()
2479 {
2480         // If the selected stack has become empty for some reason, deselect it.
2481         // If the selected stack has become inaccessible, deselect it.
2482         // If the selected stack has become smaller, adjust m_selected_amount.
2483         ItemStack selected = verifySelectedItem();
2484
2485         // WARNING: BLACK MAGIC
2486         // See if there is a stack suited for our current guess.
2487         // If such stack does not exist, clear the guess.
2488         if(m_selected_content_guess.name != "" &&
2489                         selected.name == m_selected_content_guess.name &&
2490                         selected.count == m_selected_content_guess.count){
2491                 // Selected item fits the guess. Skip the black magic.
2492         }
2493         else if(m_selected_content_guess.name != ""){
2494                 bool found = false;
2495                 for(u32 i=0; i<m_inventorylists.size() && !found; i++){
2496                         const ListDrawSpec &s = m_inventorylists[i];
2497                         Inventory *inv = m_invmgr->getInventory(s.inventoryloc);
2498                         if(!inv)
2499                                 continue;
2500                         InventoryList *list = inv->getList(s.listname);
2501                         if(!list)
2502                                 continue;
2503                         for(s32 i=0; i<s.geom.X*s.geom.Y && !found; i++){
2504                                 u32 item_i = i + s.start_item_i;
2505                                 if(item_i >= list->getSize())
2506                                         continue;
2507                                 ItemStack stack = list->getItem(item_i);
2508                                 if(stack.name == m_selected_content_guess.name &&
2509                                                 stack.count == m_selected_content_guess.count){
2510                                         found = true;
2511                                         infostream<<"Client: Changing selected content guess to "
2512                                                         <<s.inventoryloc.dump()<<" "<<s.listname
2513                                                         <<" "<<item_i<<std::endl;
2514                                         delete m_selected_item;
2515                                         m_selected_item = new ItemSpec(s.inventoryloc, s.listname, item_i);
2516                                         m_selected_amount = stack.count;
2517                                 }
2518                         }
2519                 }
2520                 if(!found){
2521                         infostream<<"Client: Discarding selected content guess: "
2522                                         <<m_selected_content_guess.getItemString()<<std::endl;
2523                         m_selected_content_guess.name = "";
2524                 }
2525         }
2526
2527         // If craftresult is nonempty and nothing else is selected, select it now.
2528         if(!m_selected_item)
2529         {
2530                 for(u32 i=0; i<m_inventorylists.size(); i++)
2531                 {
2532                         const ListDrawSpec &s = m_inventorylists[i];
2533                         if(s.listname == "craftpreview")
2534                         {
2535                                 Inventory *inv = m_invmgr->getInventory(s.inventoryloc);
2536                                 InventoryList *list = inv->getList("craftresult");
2537                                 if(list && list->getSize() >= 1 && !list->getItem(0).empty())
2538                                 {
2539                                         m_selected_item = new ItemSpec;
2540                                         m_selected_item->inventoryloc = s.inventoryloc;
2541                                         m_selected_item->listname = "craftresult";
2542                                         m_selected_item->i = 0;
2543                                         m_selected_amount = 0;
2544                                         m_selected_dragging = false;
2545                                         break;
2546                                 }
2547                         }
2548                 }
2549         }
2550
2551         // If craftresult is selected, keep the whole stack selected
2552         if(m_selected_item && m_selected_item->listname == "craftresult")
2553         {
2554                 m_selected_amount = verifySelectedItem().count;
2555         }
2556 }
2557
2558 ItemStack GUIFormSpecMenu::verifySelectedItem()
2559 {
2560         // If the selected stack has become empty for some reason, deselect it.
2561         // If the selected stack has become inaccessible, deselect it.
2562         // If the selected stack has become smaller, adjust m_selected_amount.
2563         // Return the selected stack.
2564
2565         if(m_selected_item)
2566         {
2567                 if(m_selected_item->isValid())
2568                 {
2569                         Inventory *inv = m_invmgr->getInventory(m_selected_item->inventoryloc);
2570                         if(inv)
2571                         {
2572                                 InventoryList *list = inv->getList(m_selected_item->listname);
2573                                 if(list && (u32) m_selected_item->i < list->getSize())
2574                                 {
2575                                         ItemStack stack = list->getItem(m_selected_item->i);
2576                                         if(m_selected_amount > stack.count)
2577                                                 m_selected_amount = stack.count;
2578                                         if(!stack.empty())
2579                                                 return stack;
2580                                 }
2581                         }
2582                 }
2583
2584                 // selection was not valid
2585                 delete m_selected_item;
2586                 m_selected_item = NULL;
2587                 m_selected_amount = 0;
2588                 m_selected_dragging = false;
2589         }
2590         return ItemStack();
2591 }
2592
2593 void GUIFormSpecMenu::acceptInput(FormspecQuitMode quitmode=quit_mode_no)
2594 {
2595         if(m_text_dst)
2596         {
2597                 StringMap fields;
2598
2599                 if (quitmode == quit_mode_accept) {
2600                         fields["quit"] = "true";
2601                 }
2602
2603                 if (quitmode == quit_mode_cancel) {
2604                         fields["quit"] = "true";
2605                         m_text_dst->gotText(fields);
2606                         return;
2607                 }
2608
2609                 if (current_keys_pending.key_down) {
2610                         fields["key_down"] = "true";
2611                         current_keys_pending.key_down = false;
2612                 }
2613
2614                 if (current_keys_pending.key_up) {
2615                         fields["key_up"] = "true";
2616                         current_keys_pending.key_up = false;
2617                 }
2618
2619                 if (current_keys_pending.key_enter) {
2620                         fields["key_enter"] = "true";
2621                         current_keys_pending.key_enter = false;
2622                 }
2623
2624                 if (current_keys_pending.key_escape) {
2625                         fields["key_escape"] = "true";
2626                         current_keys_pending.key_escape = false;
2627                 }
2628
2629                 for(unsigned int i=0; i<m_fields.size(); i++) {
2630                         const FieldSpec &s = m_fields[i];
2631                         if(s.send) {
2632                                 std::string name = s.fname;
2633                                 if (s.ftype == f_Button) {
2634                                         fields[name] = wide_to_utf8(s.flabel);
2635                                 } else if (s.ftype == f_Table) {
2636                                         GUITable *table = getTable(s.fname);
2637                                         if (table) {
2638                                                 fields[name] = table->checkEvent();
2639                                         }
2640                                 }
2641                                 else if(s.ftype == f_DropDown) {
2642                                         // no dynamic cast possible due to some distributions shipped
2643                                         // without rtti support in irrlicht
2644                                         IGUIElement * element = getElementFromId(s.fid);
2645                                         gui::IGUIComboBox *e = NULL;
2646                                         if ((element) && (element->getType() == gui::EGUIET_COMBO_BOX)) {
2647                                                 e = static_cast<gui::IGUIComboBox*>(element);
2648                                         }
2649                                         s32 selected = e->getSelected();
2650                                         if (selected >= 0) {
2651                                                 fields[name] =
2652                                                         wide_to_utf8(e->getItem(selected));
2653                                         }
2654                                 }
2655                                 else if (s.ftype == f_TabHeader) {
2656                                         // no dynamic cast possible due to some distributions shipped
2657                                         // without rtti support in irrlicht
2658                                         IGUIElement * element = getElementFromId(s.fid);
2659                                         gui::IGUITabControl *e = NULL;
2660                                         if ((element) && (element->getType() == gui::EGUIET_TAB_CONTROL)) {
2661                                                 e = static_cast<gui::IGUITabControl*>(element);
2662                                         }
2663
2664                                         if (e != 0) {
2665                                                 std::stringstream ss;
2666                                                 ss << (e->getActiveTab() +1);
2667                                                 fields[name] = ss.str();
2668                                         }
2669                                 }
2670                                 else if (s.ftype == f_CheckBox) {
2671                                         // no dynamic cast possible due to some distributions shipped
2672                                         // without rtti support in irrlicht
2673                                         IGUIElement * element = getElementFromId(s.fid);
2674                                         gui::IGUICheckBox *e = NULL;
2675                                         if ((element) && (element->getType() == gui::EGUIET_CHECK_BOX)) {
2676                                                 e = static_cast<gui::IGUICheckBox*>(element);
2677                                         }
2678
2679                                         if (e != 0) {
2680                                                 if (e->isChecked())
2681                                                         fields[name] = "true";
2682                                                 else
2683                                                         fields[name] = "false";
2684                                         }
2685                                 }
2686                                 else if (s.ftype == f_ScrollBar) {
2687                                         // no dynamic cast possible due to some distributions shipped
2688                                         // without rtti support in irrlicht
2689                                         IGUIElement * element = getElementFromId(s.fid);
2690                                         gui::IGUIScrollBar *e = NULL;
2691                                         if ((element) && (element->getType() == gui::EGUIET_SCROLL_BAR)) {
2692                                                 e = static_cast<gui::IGUIScrollBar*>(element);
2693                                         }
2694
2695                                         if (e != 0) {
2696                                                 std::stringstream os;
2697                                                 os << e->getPos();
2698                                                 if (s.fdefault == L"Changed")
2699                                                         fields[name] = "CHG:" + os.str();
2700                                                 else
2701                                                         fields[name] = "VAL:" + os.str();
2702                                         }
2703                                 }
2704                                 else
2705                                 {
2706                                         IGUIElement* e = getElementFromId(s.fid);
2707                                         if(e != NULL) {
2708                                                 fields[name] = wide_to_utf8(e->getText());
2709                                         }
2710                                 }
2711                         }
2712                 }
2713
2714                 m_text_dst->gotText(fields);
2715         }
2716 }
2717
2718 static bool isChild(gui::IGUIElement * tocheck, gui::IGUIElement * parent)
2719 {
2720         while(tocheck != NULL) {
2721                 if (tocheck == parent) {
2722                         return true;
2723                 }
2724                 tocheck = tocheck->getParent();
2725         }
2726         return false;
2727 }
2728
2729 bool GUIFormSpecMenu::preprocessEvent(const SEvent& event)
2730 {
2731         // The IGUITabControl renders visually using the skin's selected
2732         // font, which we override for the duration of form drawing,
2733         // but computes tab hotspots based on how it would have rendered
2734         // using the font that is selected at the time of button release.
2735         // To make these two consistent, temporarily override the skin's
2736         // font while the IGUITabControl is processing the event.
2737         if (event.EventType == EET_MOUSE_INPUT_EVENT &&
2738                         event.MouseInput.Event == EMIE_LMOUSE_LEFT_UP) {
2739                 s32 x = event.MouseInput.X;
2740                 s32 y = event.MouseInput.Y;
2741                 gui::IGUIElement *hovered =
2742                         Environment->getRootGUIElement()->getElementFromPoint(
2743                                 core::position2d<s32>(x, y));
2744                 if (hovered && isMyChild(hovered) &&
2745                                 hovered->getType() == gui::EGUIET_TAB_CONTROL) {
2746                         gui::IGUISkin* skin = Environment->getSkin();
2747                         sanity_check(skin != NULL);
2748                         gui::IGUIFont *old_font = skin->getFont();
2749                         skin->setFont(m_font);
2750                         bool retval = hovered->OnEvent(event);
2751                         skin->setFont(old_font);
2752                         return retval;
2753                 }
2754         }
2755
2756         // Fix Esc/Return key being eaten by checkboxen and tables
2757         if(event.EventType==EET_KEY_INPUT_EVENT) {
2758                 KeyPress kp(event.KeyInput);
2759                 if (kp == EscapeKey || kp == CancelKey
2760                                 || kp == getKeySetting("keymap_inventory")
2761                                 || event.KeyInput.Key==KEY_RETURN) {
2762                         gui::IGUIElement *focused = Environment->getFocus();
2763                         if (focused && isMyChild(focused) &&
2764                                         (focused->getType() == gui::EGUIET_LIST_BOX ||
2765                                          focused->getType() == gui::EGUIET_CHECK_BOX)) {
2766                                 OnEvent(event);
2767                                 return true;
2768                         }
2769                 }
2770         }
2771         // Mouse wheel events: send to hovered element instead of focused
2772         if(event.EventType==EET_MOUSE_INPUT_EVENT
2773                         && event.MouseInput.Event == EMIE_MOUSE_WHEEL) {
2774                 s32 x = event.MouseInput.X;
2775                 s32 y = event.MouseInput.Y;
2776                 gui::IGUIElement *hovered =
2777                         Environment->getRootGUIElement()->getElementFromPoint(
2778                                 core::position2d<s32>(x, y));
2779                 if (hovered && isMyChild(hovered)) {
2780                         hovered->OnEvent(event);
2781                         return true;
2782                 }
2783         }
2784
2785         if (event.EventType == EET_MOUSE_INPUT_EVENT) {
2786                 s32 x = event.MouseInput.X;
2787                 s32 y = event.MouseInput.Y;
2788                 gui::IGUIElement *hovered =
2789                         Environment->getRootGUIElement()->getElementFromPoint(
2790                                 core::position2d<s32>(x, y));
2791                 if (event.MouseInput.Event == EMIE_LMOUSE_PRESSED_DOWN) {
2792                         m_old_tooltip_id = -1;
2793                         m_old_tooltip = "";
2794                 }
2795                 if (!isChild(hovered,this)) {
2796                         if (DoubleClickDetection(event)) {
2797                                 return true;
2798                         }
2799                 }
2800         }
2801
2802         #ifdef __ANDROID__
2803         // display software keyboard when clicking edit boxes
2804         if (event.EventType == EET_MOUSE_INPUT_EVENT
2805                         && event.MouseInput.Event == EMIE_LMOUSE_PRESSED_DOWN) {
2806                 gui::IGUIElement *hovered =
2807                         Environment->getRootGUIElement()->getElementFromPoint(
2808                                 core::position2d<s32>(event.MouseInput.X, event.MouseInput.Y));
2809                 if ((hovered) && (hovered->getType() == irr::gui::EGUIET_EDIT_BOX)) {
2810                         bool retval = hovered->OnEvent(event);
2811                         if (retval) {
2812                                 Environment->setFocus(hovered);
2813                         }
2814                         m_JavaDialogFieldName = getNameByID(hovered->getID());
2815                         std::string message   = gettext("Enter ");
2816                         std::string label     = wide_to_utf8(getLabelByID(hovered->getID()));
2817                         if (label == "") {
2818                                 label = "text";
2819                         }
2820                         message += gettext(label) + ":";
2821
2822                         /* single line text input */
2823                         int type = 2;
2824
2825                         /* multi line text input */
2826                         if (((gui::IGUIEditBox*) hovered)->isMultiLineEnabled()) {
2827                                 type = 1;
2828                         }
2829
2830                         /* passwords are always single line */
2831                         if (((gui::IGUIEditBox*) hovered)->isPasswordBox()) {
2832                                 type = 3;
2833                         }
2834
2835                         porting::showInputDialog(gettext("ok"), "",
2836                                         wide_to_utf8(((gui::IGUIEditBox*) hovered)->getText()),
2837                                         type);
2838                         return retval;
2839                 }
2840         }
2841
2842         if (event.EventType == EET_TOUCH_INPUT_EVENT)
2843         {
2844                 SEvent translated;
2845                 memset(&translated, 0, sizeof(SEvent));
2846                 translated.EventType   = EET_MOUSE_INPUT_EVENT;
2847                 gui::IGUIElement* root = Environment->getRootGUIElement();
2848
2849                 if (!root) {
2850                         errorstream
2851                         << "GUIFormSpecMenu::preprocessEvent unable to get root element"
2852                         << std::endl;
2853                         return false;
2854                 }
2855                 gui::IGUIElement* hovered = root->getElementFromPoint(
2856                         core::position2d<s32>(
2857                                         event.TouchInput.X,
2858                                         event.TouchInput.Y));
2859
2860                 translated.MouseInput.X = event.TouchInput.X;
2861                 translated.MouseInput.Y = event.TouchInput.Y;
2862                 translated.MouseInput.Control = false;
2863
2864                 bool dont_send_event = false;
2865
2866                 if (event.TouchInput.touchedCount == 1) {
2867                         switch (event.TouchInput.Event) {
2868                                 case ETIE_PRESSED_DOWN:
2869                                         m_pointer = v2s32(event.TouchInput.X,event.TouchInput.Y);
2870                                         translated.MouseInput.Event = EMIE_LMOUSE_PRESSED_DOWN;
2871                                         translated.MouseInput.ButtonStates = EMBSM_LEFT;
2872                                         m_down_pos = m_pointer;
2873                                         break;
2874                                 case ETIE_MOVED:
2875                                         m_pointer = v2s32(event.TouchInput.X,event.TouchInput.Y);
2876                                         translated.MouseInput.Event = EMIE_MOUSE_MOVED;
2877                                         translated.MouseInput.ButtonStates = EMBSM_LEFT;
2878                                         break;
2879                                 case ETIE_LEFT_UP:
2880                                         translated.MouseInput.Event = EMIE_LMOUSE_LEFT_UP;
2881                                         translated.MouseInput.ButtonStates = 0;
2882                                         hovered = root->getElementFromPoint(m_down_pos);
2883                                         /* we don't have a valid pointer element use last
2884                                          * known pointer pos */
2885                                         translated.MouseInput.X = m_pointer.X;
2886                                         translated.MouseInput.Y = m_pointer.Y;
2887
2888                                         /* reset down pos */
2889                                         m_down_pos = v2s32(0,0);
2890                                         break;
2891                                 default:
2892                                         dont_send_event = true;
2893                                         //this is not supposed to happen
2894                                         errorstream
2895                                         << "GUIFormSpecMenu::preprocessEvent unexpected usecase Event="
2896                                         << event.TouchInput.Event << std::endl;
2897                         }
2898                 } else if ( (event.TouchInput.touchedCount == 2) &&
2899                                 (event.TouchInput.Event == ETIE_PRESSED_DOWN) ) {
2900                         hovered = root->getElementFromPoint(m_down_pos);
2901
2902                         translated.MouseInput.Event = EMIE_RMOUSE_PRESSED_DOWN;
2903                         translated.MouseInput.ButtonStates = EMBSM_LEFT | EMBSM_RIGHT;
2904                         translated.MouseInput.X = m_pointer.X;
2905                         translated.MouseInput.Y = m_pointer.Y;
2906
2907                         if (hovered) {
2908                                 hovered->OnEvent(translated);
2909                         }
2910
2911                         translated.MouseInput.Event = EMIE_RMOUSE_LEFT_UP;
2912                         translated.MouseInput.ButtonStates = EMBSM_LEFT;
2913
2914
2915                         if (hovered) {
2916                                 hovered->OnEvent(translated);
2917                         }
2918                         dont_send_event = true;
2919                 }
2920                 /* ignore unhandled 2 touch events ... accidental moving for example */
2921                 else if (event.TouchInput.touchedCount == 2) {
2922                         dont_send_event = true;
2923                 }
2924                 else if (event.TouchInput.touchedCount > 2) {
2925                         errorstream
2926                         << "GUIFormSpecMenu::preprocessEvent to many multitouch events "
2927                         << event.TouchInput.touchedCount << " ignoring them" << std::endl;
2928                 }
2929
2930                 if (dont_send_event) {
2931                         return true;
2932                 }
2933
2934                 /* check if translated event needs to be preprocessed again */
2935                 if (preprocessEvent(translated)) {
2936                         return true;
2937                 }
2938                 if (hovered) {
2939                         grab();
2940                         bool retval = hovered->OnEvent(translated);
2941
2942                         if (event.TouchInput.Event == ETIE_LEFT_UP) {
2943                                 /* reset pointer */
2944                                 m_pointer = v2s32(0,0);
2945                         }
2946                         drop();
2947                         return retval;
2948                 }
2949         }
2950         #endif
2951
2952         return false;
2953 }
2954
2955 /******************************************************************************/
2956 bool GUIFormSpecMenu::DoubleClickDetection(const SEvent event)
2957 {
2958         /* The following code is for capturing double-clicks of the mouse button
2959          * and translating the double-click into an EET_KEY_INPUT_EVENT event
2960          * -- which closes the form -- under some circumstances.
2961          *
2962          * There have been many github issues reporting this as a bug even though it
2963          * was an intended feature.  For this reason, remapping the double-click as
2964          * an ESC must be explicitly set when creating this class via the
2965          * /p remap_dbl_click parameter of the constructor.
2966          */
2967
2968         if (!m_remap_dbl_click)
2969                 return false;
2970
2971         if (event.MouseInput.Event == EMIE_LMOUSE_PRESSED_DOWN) {
2972                 m_doubleclickdetect[0].pos  = m_doubleclickdetect[1].pos;
2973                 m_doubleclickdetect[0].time = m_doubleclickdetect[1].time;
2974
2975                 m_doubleclickdetect[1].pos  = m_pointer;
2976                 m_doubleclickdetect[1].time = getTimeMs();
2977         }
2978         else if (event.MouseInput.Event == EMIE_LMOUSE_LEFT_UP) {
2979                 u32 delta = porting::getDeltaMs(m_doubleclickdetect[0].time, getTimeMs());
2980                 if (delta > 400) {
2981                         return false;
2982                 }
2983
2984                 double squaredistance =
2985                                 m_doubleclickdetect[0].pos
2986                                 .getDistanceFromSQ(m_doubleclickdetect[1].pos);
2987
2988                 if (squaredistance > (30*30)) {
2989                         return false;
2990                 }
2991
2992                 SEvent* translated = new SEvent();
2993                 assert(translated != 0);
2994                 //translate doubleclick to escape
2995                 memset(translated, 0, sizeof(SEvent));
2996                 translated->EventType = irr::EET_KEY_INPUT_EVENT;
2997                 translated->KeyInput.Key         = KEY_ESCAPE;
2998                 translated->KeyInput.Control     = false;
2999                 translated->KeyInput.Shift       = false;
3000                 translated->KeyInput.PressedDown = true;
3001                 translated->KeyInput.Char        = 0;
3002                 OnEvent(*translated);
3003
3004                 // no need to send the key up event as we're already deleted
3005                 // and no one else did notice this event
3006                 delete translated;
3007                 return true;
3008         }
3009
3010         return false;
3011 }
3012
3013 bool GUIFormSpecMenu::OnEvent(const SEvent& event)
3014 {
3015         if(event.EventType==EET_KEY_INPUT_EVENT) {
3016                 KeyPress kp(event.KeyInput);
3017                 if (event.KeyInput.PressedDown && ( (kp == EscapeKey) ||
3018                         (kp == getKeySetting("keymap_inventory")) || (kp == CancelKey))) {
3019                         if (m_allowclose) {
3020                                 doPause = false;
3021                                 acceptInput(quit_mode_cancel);
3022                                 quitMenu();
3023                         } else {
3024                                 m_text_dst->gotText(L"MenuQuit");
3025                         }
3026                         return true;
3027                 } else if (m_client != NULL && event.KeyInput.PressedDown &&
3028                         (kp == getKeySetting("keymap_screenshot"))) {
3029                                 m_client->makeScreenshot(m_device);
3030                 }
3031                 if (event.KeyInput.PressedDown &&
3032                         (event.KeyInput.Key==KEY_RETURN ||
3033                          event.KeyInput.Key==KEY_UP ||
3034                          event.KeyInput.Key==KEY_DOWN)
3035                         ) {
3036                         switch (event.KeyInput.Key) {
3037                                 case KEY_RETURN:
3038                                         current_keys_pending.key_enter = true;
3039                                         break;
3040                                 case KEY_UP:
3041                                         current_keys_pending.key_up = true;
3042                                         break;
3043                                 case KEY_DOWN:
3044                                         current_keys_pending.key_down = true;
3045                                         break;
3046                                 break;
3047                                 default:
3048                                         //can't happen at all!
3049                                         FATAL_ERROR("Reached a source line that can't ever been reached");
3050                                         break;
3051                         }
3052                         if (current_keys_pending.key_enter && m_allowclose) {
3053                                 acceptInput(quit_mode_accept);
3054                                 quitMenu();
3055                         } else {
3056                                 acceptInput();
3057                         }
3058                         return true;
3059                 }
3060
3061         }
3062
3063         /* Mouse event other than movement, or crossing the border of inventory
3064           field while holding right mouse button
3065          */
3066         if (event.EventType == EET_MOUSE_INPUT_EVENT &&
3067                         (event.MouseInput.Event != EMIE_MOUSE_MOVED ||
3068                          (event.MouseInput.Event == EMIE_MOUSE_MOVED &&
3069                           event.MouseInput.isRightPressed() &&
3070                           getItemAtPos(m_pointer).i != getItemAtPos(m_old_pointer).i))) {
3071
3072                 // Get selected item and hovered/clicked item (s)
3073
3074                 m_old_tooltip_id = -1;
3075                 updateSelectedItem();
3076                 ItemSpec s = getItemAtPos(m_pointer);
3077
3078                 Inventory *inv_selected = NULL;
3079                 Inventory *inv_s = NULL;
3080
3081                 if(m_selected_item) {
3082                         inv_selected = m_invmgr->getInventory(m_selected_item->inventoryloc);
3083                         sanity_check(inv_selected);
3084                         sanity_check(inv_selected->getList(m_selected_item->listname) != NULL);
3085                 }
3086
3087                 u32 s_count = 0;
3088
3089                 if(s.isValid())
3090                 do { // breakable
3091                         inv_s = m_invmgr->getInventory(s.inventoryloc);
3092
3093                         if(!inv_s) {
3094                                 errorstream<<"InventoryMenu: The selected inventory location "
3095                                                 <<"\""<<s.inventoryloc.dump()<<"\" doesn't exist"
3096                                                 <<std::endl;
3097                                 s.i = -1;  // make it invalid again
3098                                 break;
3099                         }
3100
3101                         InventoryList *list = inv_s->getList(s.listname);
3102                         if(list == NULL) {
3103                                 verbosestream<<"InventoryMenu: The selected inventory list \""
3104                                                 <<s.listname<<"\" does not exist"<<std::endl;
3105                                 s.i = -1;  // make it invalid again
3106                                 break;
3107                         }
3108
3109                         if((u32)s.i >= list->getSize()) {
3110                                 infostream<<"InventoryMenu: The selected inventory list \""
3111                                                 <<s.listname<<"\" is too small (i="<<s.i<<", size="
3112                                                 <<list->getSize()<<")"<<std::endl;
3113                                 s.i = -1;  // make it invalid again
3114                                 break;
3115                         }
3116
3117                         s_count = list->getItem(s.i).count;
3118                 } while(0);
3119
3120                 bool identical = (m_selected_item != NULL) && s.isValid() &&
3121                         (inv_selected == inv_s) &&
3122                         (m_selected_item->listname == s.listname) &&
3123                         (m_selected_item->i == s.i);
3124
3125                 // buttons: 0 = left, 1 = right, 2 = middle
3126                 // up/down: 0 = down (press), 1 = up (release), 2 = unknown event, -1 movement
3127                 int button = 0;
3128                 int updown = 2;
3129                 if(event.MouseInput.Event == EMIE_LMOUSE_PRESSED_DOWN)
3130                         { button = 0; updown = 0; }
3131                 else if(event.MouseInput.Event == EMIE_RMOUSE_PRESSED_DOWN)
3132                         { button = 1; updown = 0; }
3133                 else if(event.MouseInput.Event == EMIE_MMOUSE_PRESSED_DOWN)
3134                         { button = 2; updown = 0; }
3135                 else if(event.MouseInput.Event == EMIE_LMOUSE_LEFT_UP)
3136                         { button = 0; updown = 1; }
3137                 else if(event.MouseInput.Event == EMIE_RMOUSE_LEFT_UP)
3138                         { button = 1; updown = 1; }
3139                 else if(event.MouseInput.Event == EMIE_MMOUSE_LEFT_UP)
3140                         { button = 2; updown = 1; }
3141                 else if(event.MouseInput.Event == EMIE_MOUSE_MOVED)
3142                         { updown = -1;}
3143
3144                 // Set this number to a positive value to generate a move action
3145                 // from m_selected_item to s.
3146                 u32 move_amount = 0;
3147
3148                 // Set this number to a positive value to generate a drop action
3149                 // from m_selected_item.
3150                 u32 drop_amount = 0;
3151
3152                 // Set this number to a positive value to generate a craft action at s.
3153                 u32 craft_amount = 0;
3154
3155                 if(updown == 0) {
3156                         // Some mouse button has been pressed
3157
3158                         //infostream<<"Mouse button "<<button<<" pressed at p=("
3159                         //      <<p.X<<","<<p.Y<<")"<<std::endl;
3160
3161                         m_selected_dragging = false;
3162
3163                         if(s.isValid() && s.listname == "craftpreview") {
3164                                 // Craft preview has been clicked: craft
3165                                 craft_amount = (button == 2 ? 10 : 1);
3166                         }
3167                         else if(m_selected_item == NULL) {
3168                                 if(s_count != 0) {
3169                                         // Non-empty stack has been clicked: select it
3170                                         m_selected_item = new ItemSpec(s);
3171
3172                                         if(button == 1)  // right
3173                                                 m_selected_amount = (s_count + 1) / 2;
3174                                         else if(button == 2)  // middle
3175                                                 m_selected_amount = MYMIN(s_count, 10);
3176                                         else  // left
3177                                                 m_selected_amount = s_count;
3178
3179                                         m_selected_dragging = true;
3180                                         m_rmouse_auto_place = false;
3181                                 }
3182                         }
3183                         else { // m_selected_item != NULL
3184                                 assert(m_selected_amount >= 1);
3185
3186                                 if(s.isValid()) {
3187                                         // Clicked a slot: move
3188                                         if(button == 1)  // right
3189                                                 move_amount = 1;
3190                                         else if(button == 2)  // middle
3191                                                 move_amount = MYMIN(m_selected_amount, 10);
3192                                         else  // left
3193                                                 move_amount = m_selected_amount;
3194
3195                                         if(identical) {
3196                                                 if(move_amount >= m_selected_amount)
3197                                                         m_selected_amount = 0;
3198                                                 else
3199                                                         m_selected_amount -= move_amount;
3200                                                 move_amount = 0;
3201                                         }
3202                                 }
3203                                 else if (!getAbsoluteClippingRect().isPointInside(m_pointer)) {
3204                                         // Clicked outside of the window: drop
3205                                         if(button == 1)  // right
3206                                                 drop_amount = 1;
3207                                         else if(button == 2)  // middle
3208                                                 drop_amount = MYMIN(m_selected_amount, 10);
3209                                         else  // left
3210                                                 drop_amount = m_selected_amount;
3211                                 }
3212                         }
3213                 }
3214                 else if(updown == 1) {
3215                         // Some mouse button has been released
3216
3217                         //infostream<<"Mouse button "<<button<<" released at p=("
3218                         //      <<p.X<<","<<p.Y<<")"<<std::endl;
3219
3220                         if(m_selected_item != NULL && m_selected_dragging && s.isValid()) {
3221                                 if(!identical) {
3222                                         // Dragged to different slot: move all selected
3223                                         move_amount = m_selected_amount;
3224                                 }
3225                         }
3226                         else if(m_selected_item != NULL && m_selected_dragging &&
3227                                 !(getAbsoluteClippingRect().isPointInside(m_pointer))) {
3228                                 // Dragged outside of window: drop all selected
3229                                 drop_amount = m_selected_amount;
3230                         }
3231
3232                         m_selected_dragging = false;
3233                         // Keep count of how many times right mouse button has been
3234                         // clicked. One click is drag without dropping. Click + release
3235                         // + click changes to drop one item when moved mode
3236                         if(button == 1 && m_selected_item != NULL)
3237                                 m_rmouse_auto_place = !m_rmouse_auto_place;
3238                 }
3239                 else if(updown == -1) {
3240                         // Mouse has been moved and rmb is down and mouse pointer just
3241                         // entered a new inventory field (checked in the entry-if, this
3242                         // is the only action here that is generated by mouse movement)
3243                         if(m_selected_item != NULL && s.isValid()){
3244                                 // Move 1 item
3245                                 // TODO: middle mouse to move 10 items might be handy
3246                                 if (m_rmouse_auto_place) {
3247                                         // Only move an item if the destination slot is empty
3248                                         // or contains the same item type as what is going to be
3249                                         // moved
3250                                         InventoryList *list_from = inv_selected->getList(m_selected_item->listname);
3251                                         InventoryList *list_to = inv_s->getList(s.listname);
3252                                         assert(list_from && list_to);
3253                                         ItemStack stack_from = list_from->getItem(m_selected_item->i);
3254                                         ItemStack stack_to = list_to->getItem(s.i);
3255                                         if (stack_to.empty() || stack_to.name == stack_from.name)
3256                                                 move_amount = 1;
3257                                 }
3258                         }
3259                 }
3260
3261                 // Possibly send inventory action to server
3262                 if(move_amount > 0)
3263                 {
3264                         // Send IACTION_MOVE
3265
3266                         assert(m_selected_item && m_selected_item->isValid());
3267                         assert(s.isValid());
3268
3269                         assert(inv_selected && inv_s);
3270                         InventoryList *list_from = inv_selected->getList(m_selected_item->listname);
3271                         InventoryList *list_to = inv_s->getList(s.listname);
3272                         assert(list_from && list_to);
3273                         ItemStack stack_from = list_from->getItem(m_selected_item->i);
3274                         ItemStack stack_to = list_to->getItem(s.i);
3275
3276                         // Check how many items can be moved
3277                         move_amount = stack_from.count = MYMIN(move_amount, stack_from.count);
3278                         ItemStack leftover = stack_to.addItem(stack_from, m_gamedef->idef());
3279                         // If source stack cannot be added to destination stack at all,
3280                         // they are swapped
3281                         if ((leftover.count == stack_from.count) &&
3282                                         (leftover.name == stack_from.name)) {
3283                                 m_selected_amount = stack_to.count;
3284                                 // In case the server doesn't directly swap them but instead
3285                                 // moves stack_to somewhere else, set this
3286                                 m_selected_content_guess = stack_to;
3287                                 m_selected_content_guess_inventory = s.inventoryloc;
3288                         }
3289                         // Source stack goes fully into destination stack
3290                         else if(leftover.empty()) {
3291                                 m_selected_amount -= move_amount;
3292                                 m_selected_content_guess = ItemStack(); // Clear
3293                         }
3294                         // Source stack goes partly into destination stack
3295                         else {
3296                                 move_amount -= leftover.count;
3297                                 m_selected_amount -= move_amount;
3298                                 m_selected_content_guess = ItemStack(); // Clear
3299                         }
3300
3301                         infostream<<"Handing IACTION_MOVE to manager"<<std::endl;
3302                         IMoveAction *a = new IMoveAction();
3303                         a->count = move_amount;
3304                         a->from_inv = m_selected_item->inventoryloc;
3305                         a->from_list = m_selected_item->listname;
3306                         a->from_i = m_selected_item->i;
3307                         a->to_inv = s.inventoryloc;
3308                         a->to_list = s.listname;
3309                         a->to_i = s.i;
3310                         m_invmgr->inventoryAction(a);
3311                 }
3312                 else if(drop_amount > 0) {
3313                         m_selected_content_guess = ItemStack(); // Clear
3314
3315                         // Send IACTION_DROP
3316
3317                         assert(m_selected_item && m_selected_item->isValid());
3318                         assert(inv_selected);
3319                         InventoryList *list_from = inv_selected->getList(m_selected_item->listname);
3320                         assert(list_from);
3321                         ItemStack stack_from = list_from->getItem(m_selected_item->i);
3322
3323                         // Check how many items can be dropped
3324                         drop_amount = stack_from.count = MYMIN(drop_amount, stack_from.count);
3325                         assert(drop_amount > 0 && drop_amount <= m_selected_amount);
3326                         m_selected_amount -= drop_amount;
3327
3328                         infostream<<"Handing IACTION_DROP to manager"<<std::endl;
3329                         IDropAction *a = new IDropAction();
3330                         a->count = drop_amount;
3331                         a->from_inv = m_selected_item->inventoryloc;
3332                         a->from_list = m_selected_item->listname;
3333                         a->from_i = m_selected_item->i;
3334                         m_invmgr->inventoryAction(a);
3335                 }
3336                 else if(craft_amount > 0) {
3337                         m_selected_content_guess = ItemStack(); // Clear
3338
3339                         // Send IACTION_CRAFT
3340
3341                         assert(s.isValid());
3342                         assert(inv_s);
3343
3344                         infostream<<"Handing IACTION_CRAFT to manager"<<std::endl;
3345                         ICraftAction *a = new ICraftAction();
3346                         a->count = craft_amount;
3347                         a->craft_inv = s.inventoryloc;
3348                         m_invmgr->inventoryAction(a);
3349                 }
3350
3351                 // If m_selected_amount has been decreased to zero, deselect
3352                 if(m_selected_amount == 0) {
3353                         delete m_selected_item;
3354                         m_selected_item = NULL;
3355                         m_selected_amount = 0;
3356                         m_selected_dragging = false;
3357                         m_selected_content_guess = ItemStack();
3358                 }
3359                 m_old_pointer = m_pointer;
3360         }
3361         if(event.EventType==EET_GUI_EVENT) {
3362
3363                 if(event.GUIEvent.EventType==gui::EGET_TAB_CHANGED
3364                                 && isVisible()) {
3365                         // find the element that was clicked
3366                         for(unsigned int i=0; i<m_fields.size(); i++) {
3367                                 FieldSpec &s = m_fields[i];
3368                                 if ((s.ftype == f_TabHeader) &&
3369                                                 (s.fid == event.GUIEvent.Caller->getID())) {
3370                                         s.send = true;
3371                                         acceptInput();
3372                                         s.send = false;
3373                                         return true;
3374                                 }
3375                         }
3376                 }
3377                 if(event.GUIEvent.EventType==gui::EGET_ELEMENT_FOCUS_LOST
3378                                 && isVisible()) {
3379                         if(!canTakeFocus(event.GUIEvent.Element)) {
3380                                 infostream<<"GUIFormSpecMenu: Not allowing focus change."
3381                                                 <<std::endl;
3382                                 // Returning true disables focus change
3383                                 return true;
3384                         }
3385                 }
3386                 if((event.GUIEvent.EventType == gui::EGET_BUTTON_CLICKED) ||
3387                                 (event.GUIEvent.EventType == gui::EGET_CHECKBOX_CHANGED) ||
3388                                 (event.GUIEvent.EventType == gui::EGET_COMBO_BOX_CHANGED) ||
3389                                 (event.GUIEvent.EventType == gui::EGET_SCROLL_BAR_CHANGED)) {
3390                         unsigned int btn_id = event.GUIEvent.Caller->getID();
3391
3392                         if (btn_id == 257) {
3393                                 if (m_allowclose) {
3394                                         acceptInput(quit_mode_accept);
3395                                         quitMenu();
3396                                 } else {
3397                                         acceptInput();
3398                                         m_text_dst->gotText(L"ExitButton");
3399                                 }
3400                                 // quitMenu deallocates menu
3401                                 return true;
3402                         }
3403
3404                         // find the element that was clicked
3405                         for(u32 i=0; i<m_fields.size(); i++) {
3406                                 FieldSpec &s = m_fields[i];
3407                                 // if its a button, set the send field so
3408                                 // lua knows which button was pressed
3409                                 if (((s.ftype == f_Button) || (s.ftype == f_CheckBox)) &&
3410                                                 (s.fid == event.GUIEvent.Caller->getID())) {
3411                                         s.send = true;
3412                                         if(s.is_exit) {
3413                                                 if (m_allowclose) {
3414                                                         acceptInput(quit_mode_accept);
3415                                                         quitMenu();
3416                                                 } else {
3417                                                         m_text_dst->gotText(L"ExitButton");
3418                                                 }
3419                                                 return true;
3420                                         } else {
3421                                                 acceptInput(quit_mode_no);
3422                                                 s.send = false;
3423                                                 return true;
3424                                         }
3425                                 }
3426                                 else if ((s.ftype == f_DropDown) &&
3427                                                 (s.fid == event.GUIEvent.Caller->getID())) {
3428                                         // only send the changed dropdown
3429                                         for(u32 i=0; i<m_fields.size(); i++) {
3430                                                 FieldSpec &s2 = m_fields[i];
3431                                                 if (s2.ftype == f_DropDown) {
3432                                                         s2.send = false;
3433                                                 }
3434                                         }
3435                                         s.send = true;
3436                                         acceptInput(quit_mode_no);
3437
3438                                         // revert configuration to make sure dropdowns are sent on
3439                                         // regular button click
3440                                         for(u32 i=0; i<m_fields.size(); i++) {
3441                                                 FieldSpec &s2 = m_fields[i];
3442                                                 if (s2.ftype == f_DropDown) {
3443                                                         s2.send = true;
3444                                                 }
3445                                         }
3446                                         return true;
3447                                 }
3448                                 else if ((s.ftype == f_ScrollBar) &&
3449                                         (s.fid == event.GUIEvent.Caller->getID()))
3450                                 {
3451                                         s.fdefault = L"Changed";
3452                                         acceptInput(quit_mode_no);
3453                                         s.fdefault = L"";
3454                                 }
3455                         }
3456                 }
3457
3458                 if(event.GUIEvent.EventType == gui::EGET_EDITBOX_ENTER) {
3459                         if(event.GUIEvent.Caller->getID() > 257) {
3460
3461                                 if (m_allowclose) {
3462                                         acceptInput(quit_mode_accept);
3463                                         quitMenu();
3464                                 } else {
3465                                         current_keys_pending.key_enter = true;
3466                                         acceptInput();
3467                                 }
3468                                 // quitMenu deallocates menu
3469                                 return true;
3470                         }
3471                 }
3472
3473                 if(event.GUIEvent.EventType == gui::EGET_TABLE_CHANGED) {
3474                         int current_id = event.GUIEvent.Caller->getID();
3475                         if(current_id > 257) {
3476                                 // find the element that was clicked
3477                                 for(u32 i=0; i<m_fields.size(); i++) {
3478                                         FieldSpec &s = m_fields[i];
3479                                         // if it's a table, set the send field
3480                                         // so lua knows which table was changed
3481                                         if ((s.ftype == f_Table) && (s.fid == current_id)) {
3482                                                 s.send = true;
3483                                                 acceptInput();
3484                                                 s.send=false;
3485                                         }
3486                                 }
3487                                 return true;
3488                         }
3489                 }
3490         }
3491
3492         return Parent ? Parent->OnEvent(event) : false;
3493 }
3494
3495 /**
3496  * get name of element by element id
3497  * @param id of element
3498  * @return name string or empty string
3499  */
3500 std::string GUIFormSpecMenu::getNameByID(s32 id)
3501 {
3502         for(std::vector<FieldSpec>::iterator iter =  m_fields.begin();
3503                                 iter != m_fields.end(); iter++) {
3504                 if (iter->fid == id) {
3505                         return iter->fname;
3506                 }
3507         }
3508         return "";
3509 }
3510
3511 /**
3512  * get label of element by id
3513  * @param id of element
3514  * @return label string or empty string
3515  */
3516 std::wstring GUIFormSpecMenu::getLabelByID(s32 id)
3517 {
3518         for(std::vector<FieldSpec>::iterator iter =  m_fields.begin();
3519                                 iter != m_fields.end(); iter++) {
3520                 if (iter->fid == id) {
3521                         return iter->flabel;
3522                 }
3523         }
3524         return L"";
3525 }