src/guiFormSpecMenu.cpp

   1 /*
   2 Minetest-c55
   3 Copyright (C) 2010 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 "guiFormSpecMenu.h"
  22 #include "constants.h"
  23 #include "gamedef.h"
  24 #include "keycode.h"
  25 #include "strfnd.h"
  26 #include <IGUICheckBox.h>
  27 #include <IGUIEditBox.h>
  28 #include <IGUIButton.h>
  29 #include <IGUIStaticText.h>
  30 #include <IGUIFont.h>
  31 #include "log.h"
  32 #include "tile.h" // ITextureSource
  33 #include "util/string.h"
  34 #include "util/numeric.h"
  35
  36 #include "gettext.h"
  37
  38 void drawItemStack(video::IVideoDriver *driver,
  39                 gui::IGUIFont *font,
  40                 const ItemStack &item,
  41                 const core::rect<s32> &rect,
  42                 const core::rect<s32> *clip,
  43                 IGameDef *gamedef)
  44 {
  45         if(item.empty())
  46                 return;
  47
  48         const ItemDefinition &def = item.getDefinition(gamedef->idef());
  49         video::ITexture *texture = gamedef->idef()->getInventoryTexture(def.name, gamedef);
  50
  51         // Draw the inventory texture
  52         if(texture != NULL)
  53         {
  54                 const video::SColor color(255,255,255,255);
  55                 const video::SColor colors[] = {color,color,color,color};
  56                 driver->draw2DImage(texture, rect,
  57                         core::rect<s32>(core::position2d<s32>(0,0),
  58                         core::dimension2di(texture->getOriginalSize())),
  59                         clip, colors, true);
  60         }
  61
  62         if(def.type == ITEM_TOOL && item.wear != 0)
  63         {
  64                 // Draw a progressbar
  65                 float barheight = rect.getHeight()/16;
  66                 float barpad_x = rect.getWidth()/16;
  67                 float barpad_y = rect.getHeight()/16;
  68                 core::rect<s32> progressrect(
  69                         rect.UpperLeftCorner.X + barpad_x,
  70                         rect.LowerRightCorner.Y - barpad_y - barheight,
  71                         rect.LowerRightCorner.X - barpad_x,
  72                         rect.LowerRightCorner.Y - barpad_y);
  73
  74                 // Shrink progressrect by amount of tool damage
  75                 float wear = item.wear / 65535.0;
  76                 int progressmid =
  77                         wear * progressrect.UpperLeftCorner.X +
  78                         (1-wear) * progressrect.LowerRightCorner.X;
  79
  80                 // Compute progressbar color
  81                 //   wear = 0.0: green
  82                 //   wear = 0.5: yellow
  83                 //   wear = 1.0: red
  84                 video::SColor color(255,255,255,255);
  85                 int wear_i = MYMIN(floor(wear * 600), 511);
  86                 wear_i = MYMIN(wear_i + 10, 511);
  87                 if(wear_i <= 255)
  88                         color.set(255, wear_i, 255, 0);
  89                 else
  90                         color.set(255, 255, 511-wear_i, 0);
  91
  92                 core::rect<s32> progressrect2 = progressrect;
  93                 progressrect2.LowerRightCorner.X = progressmid;
  94                 driver->draw2DRectangle(color, progressrect2, clip);
  95
  96                 color = video::SColor(255,0,0,0);
  97                 progressrect2 = progressrect;
  98                 progressrect2.UpperLeftCorner.X = progressmid;
  99                 driver->draw2DRectangle(color, progressrect2, clip);
 100         }
 101
 102         if(font != NULL && item.count >= 2)
 103         {
 104                 // Get the item count as a string
 105                 std::string text = itos(item.count);
 106                 v2u32 dim = font->getDimension(narrow_to_wide(text).c_str());
 107                 v2s32 sdim(dim.X,dim.Y);
 108
 109                 core::rect<s32> rect2(
 110                         /*rect.UpperLeftCorner,
 111                         core::dimension2d<u32>(rect.getWidth(), 15)*/
 112                         rect.LowerRightCorner - sdim,
 113                         sdim
 114                 );
 115
 116                 video::SColor bgcolor(128,0,0,0);
 117                 driver->draw2DRectangle(bgcolor, rect2, clip);
 118
 119                 video::SColor color(255,255,255,255);
 120                 font->draw(text.c_str(), rect2, color, false, false, clip);
 121         }
 122 }
 123
 124 /*
 125         GUIFormSpecMenu
 126 */
 127
 128 GUIFormSpecMenu::GUIFormSpecMenu(irr::IrrlichtDevice* dev,
 129                 gui::IGUIElement* parent, s32 id,
 130                 IMenuManager *menumgr,
 131                 InventoryManager *invmgr,
 132                 IGameDef *gamedef
 133 ):
 134         GUIModalMenu(dev->getGUIEnvironment(), parent, id, menumgr),
 135         m_device(dev),
 136         m_invmgr(invmgr),
 137         m_gamedef(gamedef),
 138         m_form_src(NULL),
 139         m_text_dst(NULL),
 140         m_selected_item(NULL),
 141         m_selected_amount(0),
 142         m_selected_dragging(false),
 143         m_tooltip_element(NULL)
 144 {
 145 }
 146
 147 GUIFormSpecMenu::~GUIFormSpecMenu()
 148 {
 149         removeChildren();
 150
 151         delete m_selected_item;
 152         delete m_form_src;
 153         delete m_text_dst;
 154 }
 155
 156 void GUIFormSpecMenu::removeChildren()
 157 {
 158         const core::list<gui::IGUIElement*> &children = getChildren();
 159         core::list<gui::IGUIElement*> children_copy;
 160         for(core::list<gui::IGUIElement*>::ConstIterator
 161                         i = children.begin(); i != children.end(); i++)
 162         {
 163                 children_copy.push_back(*i);
 164         }
 165         for(core::list<gui::IGUIElement*>::Iterator
 166                         i = children_copy.begin();
 167                         i != children_copy.end(); i++)
 168         {
 169                 (*i)->remove();
 170         }
 171         /*{
 172                 gui::IGUIElement *e = getElementFromId(256);
 173                 if(e != NULL)
 174                         e->remove();
 175         }*/
 176         if(m_tooltip_element)
 177         {
 178                 m_tooltip_element->remove();
 179                 m_tooltip_element = NULL;
 180         }
 181 }
 182
 183 void GUIFormSpecMenu::regenerateGui(v2u32 screensize)
 184 {
 185         // Remove children
 186         removeChildren();
 187
 188         v2s32 size(100,100);
 189         s32 helptext_h = 15;
 190         core::rect<s32> rect;
 191
 192         // Base position of contents of form
 193         v2s32 basepos = getBasePos();
 194         // State of basepos, 0 = not set, 1= set by formspec, 2 = set by size[] element
 195         // Used to adjust form size automatically if needed
 196         // A proceed button is added if there is no size[] element
 197         int bp_set = 0;
 198
 199         /* Convert m_init_draw_spec to m_inventorylists */
 200
 201         m_inventorylists.clear();
 202         m_images.clear();
 203         m_backgrounds.clear();
 204         m_itemimages.clear();
 205         m_fields.clear();
 206
 207         Strfnd f(m_formspec_string);
 208         while(f.atend() == false)
 209         {
 210                 std::string type = trim(f.next("["));
 211                 if(type == "invsize" || type == "size")
 212                 {
 213                         v2f invsize;
 214                         invsize.X = stof(f.next(","));
 215                         if(type == "size")
 216                         {
 217                                 invsize.Y = stof(f.next("]"));
 218                         }
 219                         else{
 220                                 invsize.Y = stof(f.next(";"));
 221                                 f.next("]");
 222                         }
 223                         infostream<<"Form size ("<<invsize.X<<","<<invsize.Y<<")"<<std::endl;
 224
 225                         padding = v2s32(screensize.Y/40, screensize.Y/40);
 226                         spacing = v2s32(screensize.Y/12, screensize.Y/13);
 227                         imgsize = v2s32(screensize.Y/15, screensize.Y/15);
 228                         size = v2s32(
 229                                 padding.X*2+spacing.X*(invsize.X-1.0)+imgsize.X,
 230                                 padding.Y*2+spacing.Y*(invsize.Y-1.0)+imgsize.Y + (helptext_h-5)
 231                         );
 232                         rect = core::rect<s32>(
 233                                         screensize.X/2 - size.X/2,
 234                                         screensize.Y/2 - size.Y/2,
 235                                         screensize.X/2 + size.X/2,
 236                                         screensize.Y/2 + size.Y/2
 237                         );
 238                         DesiredRect = rect;
 239                         recalculateAbsolutePosition(false);
 240                         basepos = getBasePos();
 241                         bp_set = 2;
 242                 }
 243                 else if(type == "list")
 244                 {
 245                         std::string name = f.next(";");
 246                         InventoryLocation loc;
 247                         if(name == "context" || name == "current_name")
 248                                 loc = m_current_inventory_location;
 249                         else
 250                                 loc.deSerialize(name);
 251                         std::string listname = f.next(";");
 252                         v2s32 pos = basepos;
 253                         pos.X += stof(f.next(",")) * (float)spacing.X;
 254                         pos.Y += stof(f.next(";")) * (float)spacing.Y;
 255                         v2s32 geom;
 256                         geom.X = stoi(f.next(","));
 257                         geom.Y = stoi(f.next(";"));
 258                         infostream<<"list inv="<<name<<", listname="<<listname
 259                                         <<", pos=("<<pos.X<<","<<pos.Y<<")"
 260                                         <<", geom=("<<geom.X<<","<<geom.Y<<")"
 261                                         <<std::endl;
 262                         std::string start_i_s = f.next("]");
 263                         s32 start_i = 0;
 264                         if(start_i_s != "")
 265                                 start_i = stoi(start_i_s);
 266                         if(bp_set != 2)
 267                                 errorstream<<"WARNING: invalid use of list without a size[] element"<<std::endl;
 268                         m_inventorylists.push_back(ListDrawSpec(loc, listname, pos, geom, start_i));
 269                 }
 270                 else if(type == "image")
 271                 {
 272                         v2s32 pos = basepos;
 273                         pos.X += stof(f.next(",")) * (float)spacing.X;
 274                         pos.Y += stof(f.next(";")) * (float)spacing.Y;
 275                         v2s32 geom;
 276                         geom.X = stof(f.next(",")) * (float)imgsize.X;
 277                         geom.Y = stof(f.next(";")) * (float)imgsize.Y;
 278                         std::string name = f.next("]");
 279                         infostream<<"image name="<<name
 280                                         <<", pos=("<<pos.X<<","<<pos.Y<<")"
 281                                         <<", geom=("<<geom.X<<","<<geom.Y<<")"
 282                                         <<std::endl;
 283                         if(bp_set != 2)
 284                                 errorstream<<"WARNING: invalid use of image without a size[] element"<<std::endl;
 285                         m_images.push_back(ImageDrawSpec(name, pos, geom));
 286                 }
 287                 else if(type == "item_image")
 288                 {
 289                         v2s32 pos = basepos;
 290                         pos.X += stof(f.next(",")) * (float)spacing.X;
 291                         pos.Y += stof(f.next(";")) * (float)spacing.Y;
 292                         v2s32 geom;
 293                         geom.X = stof(f.next(",")) * (float)imgsize.X;
 294                         geom.Y = stof(f.next(";")) * (float)imgsize.Y;
 295                         std::string name = f.next("]");
 296                         infostream<<"item name="<<name
 297                                         <<", pos=("<<pos.X<<","<<pos.Y<<")"
 298                                         <<", geom=("<<geom.X<<","<<geom.Y<<")"
 299                                         <<std::endl;
 300                         if(bp_set != 2)
 301                                 errorstream<<"WARNING: invalid use of item_image without a size[] element"<<std::endl;
 302                         m_itemimages.push_back(ImageDrawSpec(name, pos, geom));
 303                 }
 304                 else if(type == "background")
 305                 {
 306                         v2s32 pos = basepos;
 307                         pos.X += stof(f.next(",")) * (float)spacing.X - ((float)spacing.X-(float)imgsize.X)/2;
 308                         pos.Y += stof(f.next(";")) * (float)spacing.Y - ((float)spacing.Y-(float)imgsize.Y)/2;
 309                         v2s32 geom;
 310                         geom.X = stof(f.next(",")) * (float)spacing.X;
 311                         geom.Y = stof(f.next(";")) * (float)spacing.Y;
 312                         std::string name = f.next("]");
 313                         infostream<<"image name="<<name
 314                                         <<", pos=("<<pos.X<<","<<pos.Y<<")"
 315                                         <<", geom=("<<geom.X<<","<<geom.Y<<")"
 316                                         <<std::endl;
 317                         if(bp_set != 2)
 318                                 errorstream<<"WARNING: invalid use of background without a size[] element"<<std::endl;
 319                         m_backgrounds.push_back(ImageDrawSpec(name, pos, geom));
 320                 }
 321                 else if(type == "field")
 322                 {
 323                         std::string fname = f.next(";");
 324                         std::string flabel = f.next(";");
 325
 326                         if(fname.find(",") == std::string::npos && flabel.find(",") == std::string::npos)
 327                         {
 328                                 if(!bp_set)
 329                                 {
 330                                         rect = core::rect<s32>(
 331                                                 screensize.X/2 - 580/2,
 332                                                 screensize.Y/2 - 300/2,
 333                                                 screensize.X/2 + 580/2,
 334                                                 screensize.Y/2 + 300/2
 335                                         );
 336                                         DesiredRect = rect;
 337                                         recalculateAbsolutePosition(false);
 338                                         basepos = getBasePos();
 339                                         bp_set = 1;
 340                                 }
 341                                 else if(bp_set == 2)
 342                                         errorstream<<"WARNING: invalid use of unpositioned field in inventory"<<std::endl;
 343
 344                                 v2s32 pos = basepos;
 345                                 pos.Y = ((m_fields.size()+2)*60);
 346                                 v2s32 size = DesiredRect.getSize();
 347                                 rect = core::rect<s32>(size.X/2-150, pos.Y, (size.X/2-150)+300, pos.Y+30);
 348                         }
 349                         else
 350                         {
 351                                 v2s32 pos;
 352                                 pos.X = stof(fname.substr(0,fname.find(","))) * (float)spacing.X;
 353                                 pos.Y = stof(fname.substr(fname.find(",")+1)) * (float)spacing.Y;
 354                                 v2s32 geom;
 355                                 geom.X = (stof(flabel.substr(0,flabel.find(","))) * (float)spacing.X)-(spacing.X-imgsize.X);
 356                                 pos.Y += (stof(flabel.substr(flabel.find(",")+1)) * (float)imgsize.Y)/2;
 357
 358                                 rect = core::rect<s32>(pos.X, pos.Y-15, pos.X+geom.X, pos.Y+15);
 359
 360                                 fname = f.next(";");
 361                                 flabel = f.next(";");
 362                                 if(bp_set != 2)
 363                                         errorstream<<"WARNING: invalid use of positioned field without a size[] element"<<std::endl;
 364
 365                         }
 366
 367                         std::string odefault = f.next("]");
 368                         std::string fdefault;
 369
 370                         // fdefault may contain a variable reference, which
 371                         // needs to be resolved from the node metadata
 372                         if(m_form_src)
 373                                 fdefault = m_form_src->resolveText(odefault);
 374                         else
 375                                 fdefault = odefault;
 376
 377                         FieldSpec spec = FieldSpec(
 378                                 narrow_to_wide(fname.c_str()),
 379                                 narrow_to_wide(flabel.c_str()),
 380                                 narrow_to_wide(fdefault.c_str()),
 381                                 258+m_fields.size()
 382                         );
 383
 384                         // three cases: field and no label, label and no field, label and field
 385                         if (flabel == "")
 386                         {
 387                                 spec.send = true;
 388                                 gui::IGUIElement *e = Environment->addEditBox(spec.fdefault.c_str(), rect, true, this, spec.fid);
 389                                 Environment->setFocus(e);
 390
 391                                 irr::SEvent evt;
 392                                 evt.EventType = EET_KEY_INPUT_EVENT;
 393                                 evt.KeyInput.Key = KEY_END;
 394                                 evt.KeyInput.PressedDown = true;
 395                                 e->OnEvent(evt);
 396                         }
 397                         else if (fname == "")
 398                         {
 399                                 // set spec field id to 0, this stops submit searching for a value that isn't there
 400                                 Environment->addStaticText(spec.flabel.c_str(), rect, false, true, this, spec.fid);
 401                         }
 402                         else
 403                         {
 404                                 spec.send = true;
 405                                 gui::IGUIElement *e = Environment->addEditBox(spec.fdefault.c_str(), rect, true, this, spec.fid);
 406                                 Environment->setFocus(e);
 407                                 rect.UpperLeftCorner.Y -= 15;
 408                                 rect.LowerRightCorner.Y -= 15;
 409                                 Environment->addStaticText(spec.flabel.c_str(), rect, false, true, this, 0);
 410
 411                                 irr::SEvent evt;
 412                                 evt.EventType = EET_KEY_INPUT_EVENT;
 413                                 evt.KeyInput.Key = KEY_END;
 414                                 evt.KeyInput.PressedDown = true;
 415                                 e->OnEvent(evt);
 416                         }
 417
 418                         m_fields.push_back(spec);
 419                 }
 420                 else if(type == "label")
 421                 {
 422                         v2s32 pos = padding;
 423                         pos.X += stof(f.next(",")) * (float)spacing.X;
 424                         pos.Y += stof(f.next(";")) * (float)spacing.Y;
 425
 426                         rect = core::rect<s32>(pos.X, pos.Y+((imgsize.Y/2)-15), pos.X+300, pos.Y+((imgsize.Y/2)+15));
 427
 428                         std::string flabel = f.next("]");
 429                         if(bp_set != 2)
 430                                 errorstream<<"WARNING: invalid use of label without a size[] element"<<std::endl;
 431
 432                         FieldSpec spec = FieldSpec(
 433                                 narrow_to_wide(""),
 434                                 narrow_to_wide(flabel.c_str()),
 435                                 narrow_to_wide(""),
 436                                 258+m_fields.size()
 437                         );
 438                         Environment->addStaticText(spec.flabel.c_str(), rect, false, true, this, spec.fid);
 439                         m_fields.push_back(spec);
 440                 }
 441                 else if(type == "button" || type == "button_exit")
 442                 {
 443                         v2s32 pos = padding;
 444                         pos.X += stof(f.next(",")) * (float)spacing.X;
 445                         pos.Y += stof(f.next(";")) * (float)spacing.Y;
 446                         v2s32 geom;
 447                         geom.X = (stof(f.next(",")) * (float)spacing.X)-(spacing.X-imgsize.X);
 448                         pos.Y += (stof(f.next(";")) * (float)imgsize.Y)/2;
 449
 450                         rect = core::rect<s32>(pos.X, pos.Y-15, pos.X+geom.X, pos.Y+15);
 451
 452                         std::string fname = f.next(";");
 453                         std::string flabel = f.next("]");
 454                         if(bp_set != 2)
 455                                 errorstream<<"WARNING: invalid use of button without a size[] element"<<std::endl;
 456
 457                         FieldSpec spec = FieldSpec(
 458                                 narrow_to_wide(fname.c_str()),
 459                                 narrow_to_wide(flabel.c_str()),
 460                                 narrow_to_wide(""),
 461                                 258+m_fields.size()
 462                         );
 463                         spec.is_button = true;
 464                         if(type == "button_exit")
 465                                 spec.is_exit = true;
 466                         Environment->addButton(rect, this, spec.fid, spec.flabel.c_str());
 467                         m_fields.push_back(spec);
 468                 }
 469                 else if(type == "image_button" || type == "image_button_exit")
 470                 {
 471                         v2s32 pos = padding;
 472                         pos.X += stof(f.next(",")) * (float)spacing.X;
 473                         pos.Y += stof(f.next(";")) * (float)spacing.Y;
 474                         v2s32 geom;
 475                         geom.X = (stof(f.next(",")) * (float)spacing.X)-(spacing.X-imgsize.X);
 476                         geom.Y = (stof(f.next(";")) * (float)spacing.Y)-(spacing.Y-imgsize.Y);
 477
 478                         rect = core::rect<s32>(pos.X, pos.Y, pos.X+geom.X, pos.Y+geom.Y);
 479
 480                         std::string fimage = f.next(";");
 481                         std::string fname = f.next(";");
 482                         std::string flabel = f.next("]");
 483                         if(bp_set != 2)
 484                                 errorstream<<"WARNING: invalid use of image_button without a size[] element"<<std::endl;
 485
 486                         FieldSpec spec = FieldSpec(
 487                                 narrow_to_wide(fname.c_str()),
 488                                 narrow_to_wide(flabel.c_str()),
 489                                 narrow_to_wide(fimage.c_str()),
 490                                 258+m_fields.size()
 491                         );
 492                         spec.is_button = true;
 493                         if(type == "image_button_exit")
 494                                 spec.is_exit = true;
 495
 496                         video::ITexture *texture = m_gamedef->tsrc()->getTextureRaw(fimage);
 497                         gui::IGUIButton *e = Environment->addButton(rect, this, spec.fid, spec.flabel.c_str());
 498                         e->setUseAlphaChannel(true);
 499                         e->setImage(texture);
 500                         e->setPressedImage(texture);
 501                         e->setScaleImage(true);
 502
 503                         m_fields.push_back(spec);
 504                 }
 505                 else if(type == "item_image_button")
 506                 {
 507                         v2s32 pos = padding;
 508                         pos.X += stof(f.next(",")) * (float)spacing.X;
 509                         pos.Y += stof(f.next(";")) * (float)spacing.Y;
 510                         v2s32 geom;
 511                         geom.X = (stof(f.next(",")) * (float)spacing.X)-(spacing.X-imgsize.X);
 512                         geom.Y = (stof(f.next(";")) * (float)spacing.Y)-(spacing.Y-imgsize.Y);
 513                         rect = core::rect<s32>(pos.X, pos.Y, pos.X+geom.X, pos.Y+geom.Y);
 514                         std::string fimage = f.next(";");
 515                         std::string fname = f.next(";");
 516                         std::string flabel = f.next("]");
 517                         if(bp_set != 2)
 518                                 errorstream<<"WARNING: invalid use of item_image_button without a size[] element"<<std::endl;
 519                         IItemDefManager *idef = m_gamedef->idef();
 520                         ItemStack item;
 521                         item.deSerialize(fimage, idef);
 522                         video::ITexture *texture = idef->getInventoryTexture(item.getDefinition(idef).name, m_gamedef);
 523                         std::string tooltip = item.getDefinition(idef).description;
 524                         FieldSpec spec = FieldSpec(
 525                                 narrow_to_wide(fname.c_str()),
 526                                 narrow_to_wide(flabel.c_str()),
 527                                 narrow_to_wide(fimage.c_str()),
 528                                 258+m_fields.size()
 529                         );
 530                         gui::IGUIButton *e = Environment->addButton(rect, this, spec.fid, spec.flabel.c_str());
 531                         e->setUseAlphaChannel(true);
 532                         e->setImage(texture);
 533                         e->setPressedImage(texture);
 534                         e->setScaleImage(true);
 535                         spec.is_button = true;
 536                         rect+=basepos-padding;
 537                         spec.rect=rect;
 538                         if (tooltip!="")
 539                                 spec.tooltip=tooltip;
 540                         m_fields.push_back(spec);
 541                 }
 542                 else
 543                 {
 544                         // Ignore others
 545                         std::string ts = f.next("]");
 546                         infostream<<"Unknown DrawSpec: type="<<type<<", data=\""<<ts<<"\""
 547                                         <<std::endl;
 548                 }
 549         }
 550
 551         // If there's inventory, put the usage string at the bottom
 552         if (m_inventorylists.size())
 553         {
 554                 changeCtype("");
 555                 core::rect<s32> rect(0, 0, size.X-padding.X*2, helptext_h);
 556                 rect = rect + v2s32(size.X/2 - rect.getWidth()/2,
 557                                 size.Y-rect.getHeight()-5);
 558                 const wchar_t *text = wgettext("Left click: Move all items, Right click: Move single item");
 559                 Environment->addStaticText(text, rect, false, true, this, 256);
 560                 changeCtype("C");
 561         }
 562         // If there's fields, add a Proceed button
 563         if (m_fields.size() && bp_set != 2)
 564         {
 565                 // if the size wasn't set by an invsize[] or size[] adjust it now to fit all the fields
 566                 rect = core::rect<s32>(
 567                         screensize.X/2 - 580/2,
 568                         screensize.Y/2 - 300/2,
 569                         screensize.X/2 + 580/2,
 570                         screensize.Y/2 + 240/2+(m_fields.size()*60)
 571                 );
 572                 DesiredRect = rect;
 573                 recalculateAbsolutePosition(false);
 574                 basepos = getBasePos();
 575
 576                 changeCtype("");
 577                 {
 578                         v2s32 pos = basepos;
 579                         pos.Y = ((m_fields.size()+2)*60);
 580
 581                         v2s32 size = DesiredRect.getSize();
 582                         rect = core::rect<s32>(size.X/2-70, pos.Y, (size.X/2-70)+140, pos.Y+30);
 583                         Environment->addButton(rect, this, 257, wgettext("Proceed"));
 584                 }
 585                 changeCtype("C");
 586         }
 587         // Add tooltip
 588         {
 589                 // Note: parent != this so that the tooltip isn't clipped by the menu rectangle
 590                 m_tooltip_element = Environment->addStaticText(L"",core::rect<s32>(0,0,110,18));
 591                 m_tooltip_element->enableOverrideColor(true);
 592                 m_tooltip_element->setBackgroundColor(video::SColor(255,110,130,60));
 593                 m_tooltip_element->setDrawBackground(true);
 594                 m_tooltip_element->setDrawBorder(true);
 595                 m_tooltip_element->setOverrideColor(video::SColor(255,255,255,255));
 596                 m_tooltip_element->setTextAlignment(gui::EGUIA_CENTER, gui::EGUIA_CENTER);
 597                 m_tooltip_element->setWordWrap(false);
 598         }
 599 }
 600
 601 GUIFormSpecMenu::ItemSpec GUIFormSpecMenu::getItemAtPos(v2s32 p) const
 602 {
 603         core::rect<s32> imgrect(0,0,imgsize.X,imgsize.Y);
 604
 605         for(u32 i=0; i<m_inventorylists.size(); i++)
 606         {
 607                 const ListDrawSpec &s = m_inventorylists[i];
 608
 609                 for(s32 i=0; i<s.geom.X*s.geom.Y; i++)
 610                 {
 611                         s32 item_i = i + s.start_item_i;
 612                         s32 x = (i%s.geom.X) * spacing.X;
 613                         s32 y = (i/s.geom.X) * spacing.Y;
 614                         v2s32 p0(x,y);
 615                         core::rect<s32> rect = imgrect + s.pos + p0;
 616                         if(rect.isPointInside(p))
 617                         {
 618                                 return ItemSpec(s.inventoryloc, s.listname, item_i);
 619                         }
 620                 }
 621         }
 622
 623         return ItemSpec(InventoryLocation(), "", -1);
 624 }
 625
 626 void GUIFormSpecMenu::drawList(const ListDrawSpec &s, int phase)
 627 {
 628         video::IVideoDriver* driver = Environment->getVideoDriver();
 629
 630         // Get font
 631         gui::IGUIFont *font = NULL;
 632         gui::IGUISkin* skin = Environment->getSkin();
 633         if (skin)
 634                 font = skin->getFont();
 635
 636         Inventory *inv = m_invmgr->getInventory(s.inventoryloc);
 637         if(!inv){
 638                 infostream<<"GUIFormSpecMenu::drawList(): WARNING: "
 639                                 <<"The inventory location "
 640                                 <<"\""<<s.inventoryloc.dump()<<"\" doesn't exist"
 641                                 <<std::endl;
 642                 return;
 643         }
 644         InventoryList *ilist = inv->getList(s.listname);
 645         if(!ilist){
 646                 infostream<<"GUIFormSpecMenu::drawList(): WARNING: "
 647                                 <<"The inventory list \""<<s.listname<<"\" @ \""
 648                                 <<s.inventoryloc.dump()<<"\" doesn't exist"
 649                                 <<std::endl;
 650                 return;
 651         }
 652
 653         core::rect<s32> imgrect(0,0,imgsize.X,imgsize.Y);
 654
 655         for(s32 i=0; i<s.geom.X*s.geom.Y; i++)
 656         {
 657                 u32 item_i = i + s.start_item_i;
 658                 if(item_i >= ilist->getSize())
 659                         break;
 660                 s32 x = (i%s.geom.X) * spacing.X;
 661                 s32 y = (i/s.geom.X) * spacing.Y;
 662                 v2s32 p(x,y);
 663                 core::rect<s32> rect = imgrect + s.pos + p;
 664                 ItemStack item;
 665                 if(ilist)
 666                         item = ilist->getItem(item_i);
 667
 668                 bool selected = m_selected_item
 669                         && m_invmgr->getInventory(m_selected_item->inventoryloc) == inv
 670                         && m_selected_item->listname == s.listname
 671                         && m_selected_item->i == i;
 672                 bool hovering = rect.isPointInside(m_pointer);
 673
 674                 if(phase == 0)
 675                 {
 676                         if(hovering && m_selected_item)
 677                         {
 678                                 video::SColor bgcolor(255,192,192,192);
 679                                 driver->draw2DRectangle(bgcolor, rect, &AbsoluteClippingRect);
 680                         }
 681                         else
 682                         {
 683                                 video::SColor bgcolor(255,128,128,128);
 684                                 driver->draw2DRectangle(bgcolor, rect, &AbsoluteClippingRect);
 685                         }
 686                 }
 687
 688                 if(phase == 1)
 689                 {
 690                         // Draw item stack
 691                         if(selected)
 692                         {
 693                                 item.takeItem(m_selected_amount);
 694                         }
 695                         if(!item.empty())
 696                         {
 697                                 drawItemStack(driver, font, item,
 698                                                 rect, &AbsoluteClippingRect, m_gamedef);
 699                         }
 700
 701                         // Draw tooltip
 702                         std::string tooltip_text = "";
 703                         if(hovering && !m_selected_item)
 704                                 tooltip_text = item.getDefinition(m_gamedef->idef()).description;
 705                         if(tooltip_text != "")
 706                         {
 707                                 m_tooltip_element->setVisible(true);
 708                                 this->bringToFront(m_tooltip_element);
 709                                 m_tooltip_element->setText(narrow_to_wide(tooltip_text).c_str());
 710                                 s32 tooltip_x = m_pointer.X + 15;
 711                                 s32 tooltip_y = m_pointer.Y + 15;
 712                                 s32 tooltip_width = m_tooltip_element->getTextWidth() + 15;
 713                                 s32 tooltip_height = m_tooltip_element->getTextHeight() + 5;
 714                                 m_tooltip_element->setRelativePosition(core::rect<s32>(
 715                                                 core::position2d<s32>(tooltip_x, tooltip_y),
 716                                                 core::dimension2d<s32>(tooltip_width, tooltip_height)));
 717                         }
 718                 }
 719         }
 720 }
 721
 722 void GUIFormSpecMenu::drawSelectedItem()
 723 {
 724         if(!m_selected_item)
 725                 return;
 726
 727         video::IVideoDriver* driver = Environment->getVideoDriver();
 728
 729         // Get font
 730         gui::IGUIFont *font = NULL;
 731         gui::IGUISkin* skin = Environment->getSkin();
 732         if (skin)
 733                 font = skin->getFont();
 734
 735         Inventory *inv = m_invmgr->getInventory(m_selected_item->inventoryloc);
 736         assert(inv);
 737         InventoryList *list = inv->getList(m_selected_item->listname);
 738         assert(list);
 739         ItemStack stack = list->getItem(m_selected_item->i);
 740         stack.count = m_selected_amount;
 741
 742         core::rect<s32> imgrect(0,0,imgsize.X,imgsize.Y);
 743         core::rect<s32> rect = imgrect + (m_pointer - imgrect.getCenter());
 744         drawItemStack(driver, font, stack, rect, NULL, m_gamedef);
 745 }
 746
 747 void GUIFormSpecMenu::drawMenu()
 748 {
 749         if(m_form_src){
 750                 std::string newform = m_form_src->getForm();
 751                 if(newform != m_formspec_string){
 752                         m_formspec_string = newform;
 753                         regenerateGui(m_screensize_old);
 754                 }
 755         }
 756
 757         m_pointer = m_device->getCursorControl()->getPosition();
 758
 759         updateSelectedItem();
 760
 761         gui::IGUISkin* skin = Environment->getSkin();
 762         if (!skin)
 763                 return;
 764         video::IVideoDriver* driver = Environment->getVideoDriver();
 765
 766         video::SColor bgcolor(140,0,0,0);
 767         driver->draw2DRectangle(bgcolor, AbsoluteRect, &AbsoluteClippingRect);
 768
 769         m_tooltip_element->setVisible(false);
 770
 771         /*
 772                 Draw backgrounds
 773         */
 774         for(u32 i=0; i<m_backgrounds.size(); i++)
 775         {
 776                 const ImageDrawSpec &spec = m_backgrounds[i];
 777                 video::ITexture *texture =
 778                                 m_gamedef->tsrc()->getTextureRaw(spec.name);
 779                 // Image size on screen
 780                 core::rect<s32> imgrect(0, 0, spec.geom.X, spec.geom.Y);
 781                 // Image rectangle on screen
 782                 core::rect<s32> rect = imgrect + spec.pos;
 783                 const video::SColor color(255,255,255,255);
 784                 const video::SColor colors[] = {color,color,color,color};
 785                 driver->draw2DImage(texture, rect,
 786                         core::rect<s32>(core::position2d<s32>(0,0),
 787                                         core::dimension2di(texture->getOriginalSize())),
 788                         NULL/*&AbsoluteClippingRect*/, colors, true);
 789         }
 790
 791         /*
 792                 Draw images
 793         */
 794         for(u32 i=0; i<m_images.size(); i++)
 795         {
 796                 const ImageDrawSpec &spec = m_images[i];
 797                 video::ITexture *texture =
 798                                 m_gamedef->tsrc()->getTextureRaw(spec.name);
 799                 // Image size on screen
 800                 core::rect<s32> imgrect(0, 0, spec.geom.X, spec.geom.Y);
 801                 // Image rectangle on screen
 802                 core::rect<s32> rect = imgrect + spec.pos;
 803                 const video::SColor color(255,255,255,255);
 804                 const video::SColor colors[] = {color,color,color,color};
 805                 driver->draw2DImage(texture, rect,
 806                         core::rect<s32>(core::position2d<s32>(0,0),
 807                                         core::dimension2di(texture->getOriginalSize())),
 808                         NULL/*&AbsoluteClippingRect*/, colors, true);
 809         }
 810
 811         /*
 812                 Draw item images
 813         */
 814         for(u32 i=0; i<m_itemimages.size(); i++)
 815         {
 816                 const ImageDrawSpec &spec = m_itemimages[i];
 817                 IItemDefManager *idef = m_gamedef->idef();
 818                 ItemStack item;
 819                 item.deSerialize(spec.name, idef);
 820                 video::ITexture *texture = idef->getInventoryTexture(item.getDefinition(idef).name, m_gamedef);
 821                 // Image size on screen
 822                 core::rect<s32> imgrect(0, 0, spec.geom.X, spec.geom.Y);
 823                 // Image rectangle on screen
 824                 core::rect<s32> rect = imgrect + spec.pos;
 825                 const video::SColor color(255,255,255,255);
 826                 const video::SColor colors[] = {color,color,color,color};
 827                 driver->draw2DImage(texture, rect,
 828                         core::rect<s32>(core::position2d<s32>(0,0),
 829                                         core::dimension2di(texture->getOriginalSize())),
 830                         NULL/*&AbsoluteClippingRect*/, colors, true);
 831         }
 832
 833         /*
 834                 Draw items
 835                 Phase 0: Item slot rectangles
 836                 Phase 1: Item images; prepare tooltip
 837                 If backgrounds used, do not draw Item slot rectangles
 838         */
 839         int start_phase=0;
 840         if (m_backgrounds.size() > 0) start_phase=1;
 841         for(int phase=start_phase; phase<=1; phase++)
 842         for(u32 i=0; i<m_inventorylists.size(); i++)
 843         {
 844                 drawList(m_inventorylists[i], phase);
 845         }
 846
 847         /*
 848                 Call base class
 849         */
 850         gui::IGUIElement::draw();
 851
 852         /*
 853                 Draw fields/buttons tooltips
 854         */
 855         for(u32 i=0; i<m_fields.size(); i++)
 856         {
 857                 const FieldSpec &spec = m_fields[i];
 858                 if (spec.tooltip != "")
 859                 {
 860                         core::rect<s32> rect = spec.rect;
 861                         if (rect.isPointInside(m_pointer))
 862                         {
 863                                 m_tooltip_element->setVisible(true);
 864                                 this->bringToFront(m_tooltip_element);
 865                                 m_tooltip_element->setText(narrow_to_wide(spec.tooltip).c_str());
 866                                 s32 tooltip_x = m_pointer.X + 15;
 867                                 s32 tooltip_y = m_pointer.Y + 15;
 868                                 s32 tooltip_width = m_tooltip_element->getTextWidth() + 15;
 869                                 s32 tooltip_height = m_tooltip_element->getTextHeight() + 5;
 870                                 m_tooltip_element->setRelativePosition(core::rect<s32>(
 871                                 core::position2d<s32>(tooltip_x, tooltip_y),
 872                                 core::dimension2d<s32>(tooltip_width, tooltip_height)));
 873                         }
 874                 }
 875         }
 876
 877         /*
 878                 Draw dragged item stack
 879         */
 880         drawSelectedItem();
 881 }
 882
 883 void GUIFormSpecMenu::updateSelectedItem()
 884 {
 885         // WARNING: BLACK MAGIC
 886         // See if there is a stack suited for our current guess.
 887         // If such stack does not exist, clear the guess.
 888         if(m_selected_content_guess.name != "")
 889         {
 890                 bool found = false;
 891                 for(u32 i=0; i<m_inventorylists.size() && !found; i++){
 892                         const ListDrawSpec &s = m_inventorylists[i];
 893                         Inventory *inv = m_invmgr->getInventory(s.inventoryloc);
 894                         if(!inv)
 895                                 continue;
 896                         InventoryList *list = inv->getList(s.listname);
 897                         if(!list)
 898                                 continue;
 899                         for(s32 i=0; i<s.geom.X*s.geom.Y && !found; i++){
 900                                 u32 item_i = i + s.start_item_i;
 901                                 if(item_i >= list->getSize())
 902                                         continue;
 903                                 ItemStack stack = list->getItem(item_i);
 904                                 if(stack.name == m_selected_content_guess.name &&
 905                                                 stack.count == m_selected_content_guess.count){
 906                                         found = true;
 907                                         if(m_selected_item){
 908                                                 // If guessed stack is already selected, all is fine
 909                                                 if(m_selected_item->inventoryloc == s.inventoryloc &&
 910                                                                 m_selected_item->listname == s.listname &&
 911                                                                 m_selected_item->i == (s32)item_i &&
 912                                                                 m_selected_amount == stack.count){
 913                                                         break;
 914                                                 }
 915                                                 delete m_selected_item;
 916                                                 m_selected_item = NULL;
 917                                         }
 918                                         infostream<<"Client: Changing selected content guess to "
 919                                                         <<s.inventoryloc.dump()<<" "<<s.listname
 920                                                         <<" "<<item_i<<std::endl;
 921                                         m_selected_item = new ItemSpec(s.inventoryloc, s.listname, item_i);
 922                                         m_selected_amount = stack.count;
 923                                         break;
 924                                 }
 925                         }
 926                 }
 927                 if(!found){
 928                         infostream<<"Client: Discarding selected content guess: "
 929                                         <<m_selected_content_guess.getItemString()<<std::endl;
 930                         m_selected_content_guess.name = "";
 931                 }
 932         }
 933         // If the selected stack has become empty for some reason, deselect it.
 934         // If the selected stack has become smaller, adjust m_selected_amount.
 935         if(m_selected_item)
 936         {
 937                 bool selection_valid = false;
 938                 if(m_selected_item->isValid())
 939                 {
 940                         Inventory *inv = m_invmgr->getInventory(m_selected_item->inventoryloc);
 941                         if(inv)
 942                         {
 943                                 InventoryList *list = inv->getList(m_selected_item->listname);
 944                                 if(list && (u32) m_selected_item->i < list->getSize())
 945                                 {
 946                                         ItemStack stack = list->getItem(m_selected_item->i);
 947                                         if(m_selected_amount > stack.count)
 948                                                 m_selected_amount = stack.count;
 949                                         if(!stack.empty())
 950                                                 selection_valid = true;
 951                                 }
 952                         }
 953                 }
 954                 if(!selection_valid)
 955                 {
 956                         delete m_selected_item;
 957                         m_selected_item = NULL;
 958                         m_selected_amount = 0;
 959                         m_selected_dragging = false;
 960                 }
 961         }
 962
 963         // If craftresult is nonempty and nothing else is selected, select it now.
 964         if(!m_selected_item)
 965         {
 966                 for(u32 i=0; i<m_inventorylists.size(); i++)
 967                 {
 968                         const ListDrawSpec &s = m_inventorylists[i];
 969                         if(s.listname == "craftpreview")
 970                         {
 971                                 Inventory *inv = m_invmgr->getInventory(s.inventoryloc);
 972                                 InventoryList *list = inv->getList("craftresult");
 973                                 if(list && list->getSize() >= 1 && !list->getItem(0).empty())
 974                                 {
 975                                         m_selected_item = new ItemSpec;
 976                                         m_selected_item->inventoryloc = s.inventoryloc;
 977                                         m_selected_item->listname = "craftresult";
 978                                         m_selected_item->i = 0;
 979                                         m_selected_amount = 0;
 980                                         m_selected_dragging = false;
 981                                         break;
 982                                 }
 983                         }
 984                 }
 985         }
 986
 987         // If craftresult is selected, keep the whole stack selected
 988         if(m_selected_item && m_selected_item->listname == "craftresult")
 989         {
 990                 Inventory *inv = m_invmgr->getInventory(m_selected_item->inventoryloc);
 991                 assert(inv);
 992                 InventoryList *list = inv->getList(m_selected_item->listname);
 993                 assert(list);
 994                 m_selected_amount = list->getItem(m_selected_item->i).count;
 995         }
 996 }
 997
 998 void GUIFormSpecMenu::acceptInput()
 999 {
1000         if(m_text_dst)
1001         {
1002                 std::map<std::string, std::string> fields;
1003                 gui::IGUIElement *e;
1004                 for(u32 i=0; i<m_fields.size(); i++)
1005                 {
1006                         const FieldSpec &s = m_fields[i];
1007                         if(s.send)
1008                         {
1009                                 if(s.is_button)
1010                                 {
1011                                         fields[wide_to_narrow(s.fname.c_str())] = wide_to_narrow(s.flabel.c_str());
1012                                 }
1013                                 else
1014                                 {
1015                                         e = getElementFromId(s.fid);
1016                                         if(e != NULL)
1017                                         {
1018                                                 fields[wide_to_narrow(s.fname.c_str())] = wide_to_narrow(e->getText());
1019                                         }
1020                                 }
1021                         }
1022                 }
1023                 m_text_dst->gotText(fields);
1024         }
1025 }
1026
1027 bool GUIFormSpecMenu::OnEvent(const SEvent& event)
1028 {
1029         if(event.EventType==EET_KEY_INPUT_EVENT)
1030         {
1031                 KeyPress kp(event.KeyInput);
1032                 if (event.KeyInput.PressedDown && (kp == EscapeKey ||
1033                         kp == getKeySetting("keymap_inventory")))
1034                 {
1035                         quitMenu();
1036                         return true;
1037                 }
1038                 if(event.KeyInput.Key==KEY_RETURN && event.KeyInput.PressedDown)
1039                 {
1040                         acceptInput();
1041                         quitMenu();
1042                         return true;
1043                 }
1044         }
1045         if(event.EventType==EET_MOUSE_INPUT_EVENT
1046                         && event.MouseInput.Event != EMIE_MOUSE_MOVED)
1047         {
1048                 // Mouse event other than movement
1049
1050                 // Get selected item and hovered/clicked item (s)
1051
1052                 updateSelectedItem();
1053                 ItemSpec s = getItemAtPos(m_pointer);
1054
1055                 Inventory *inv_selected = NULL;
1056                 Inventory *inv_s = NULL;
1057
1058                 if(m_selected_item)
1059                 {
1060                         inv_selected = m_invmgr->getInventory(m_selected_item->inventoryloc);
1061                         assert(inv_selected);
1062                         assert(inv_selected->getList(m_selected_item->listname) != NULL);
1063                 }
1064
1065                 u32 s_count = 0;
1066
1067                 if(s.isValid())
1068                 do{ // breakable
1069                         inv_s = m_invmgr->getInventory(s.inventoryloc);
1070
1071                         if(!inv_s){
1072                                 errorstream<<"InventoryMenu: The selected inventory location "
1073                                                 <<"\""<<s.inventoryloc.dump()<<"\" doesn't exist"
1074                                                 <<std::endl;
1075                                 s.i = -1;  // make it invalid again
1076                                 break;
1077                         }
1078
1079                         InventoryList *list = inv_s->getList(s.listname);
1080                         if(list == NULL){
1081                                 verbosestream<<"InventoryMenu: The selected inventory list \""
1082                                                 <<s.listname<<"\" does not exist"<<std::endl;
1083                                 s.i = -1;  // make it invalid again
1084                                 break;
1085                         }
1086
1087                         if((u32)s.i >= list->getSize()){
1088                                 infostream<<"InventoryMenu: The selected inventory list \""
1089                                                 <<s.listname<<"\" is too small (i="<<s.i<<", size="
1090                                                 <<list->getSize()<<")"<<std::endl;
1091                                 s.i = -1;  // make it invalid again
1092                                 break;
1093                         }
1094
1095                         s_count = list->getItem(s.i).count;
1096                 }while(0);
1097
1098                 bool identical = (m_selected_item != NULL) && s.isValid() &&
1099                         (inv_selected == inv_s) &&
1100                         (m_selected_item->listname == s.listname) &&
1101                         (m_selected_item->i == s.i);
1102
1103                 // buttons: 0 = left, 1 = right, 2 = middle
1104                 // up/down: 0 = down (press), 1 = up (release), 2 = unknown event
1105                 int button = 0;
1106                 int updown = 2;
1107                 if(event.MouseInput.Event == EMIE_LMOUSE_PRESSED_DOWN)
1108                         { button = 0; updown = 0; }
1109                 else if(event.MouseInput.Event == EMIE_RMOUSE_PRESSED_DOWN)
1110                         { button = 1; updown = 0; }
1111                 else if(event.MouseInput.Event == EMIE_MMOUSE_PRESSED_DOWN)
1112                         { button = 2; updown = 0; }
1113                 else if(event.MouseInput.Event == EMIE_LMOUSE_LEFT_UP)
1114                         { button = 0; updown = 1; }
1115                 else if(event.MouseInput.Event == EMIE_RMOUSE_LEFT_UP)
1116                         { button = 1; updown = 1; }
1117                 else if(event.MouseInput.Event == EMIE_MMOUSE_LEFT_UP)
1118                         { button = 2; updown = 1; }
1119
1120                 // Set this number to a positive value to generate a move action
1121                 // from m_selected_item to s.
1122                 u32 move_amount = 0;
1123
1124                 // Set this number to a positive value to generate a drop action
1125                 // from m_selected_item.
1126                 u32 drop_amount = 0;
1127
1128                 // Set this number to a positive value to generate a craft action at s.
1129                 u32 craft_amount = 0;
1130
1131                 if(updown == 0)
1132                 {
1133                         // Some mouse button has been pressed
1134
1135                         //infostream<<"Mouse button "<<button<<" pressed at p=("
1136                         //      <<p.X<<","<<p.Y<<")"<<std::endl;
1137
1138                         m_selected_dragging = false;
1139
1140                         if(s.isValid() && s.listname == "craftpreview")
1141                         {
1142                                 // Craft preview has been clicked: craft
1143                                 craft_amount = (button == 2 ? 10 : 1);
1144                         }
1145                         else if(m_selected_item == NULL)
1146                         {
1147                                 if(s_count != 0)
1148                                 {
1149                                         // Non-empty stack has been clicked: select it
1150                                         m_selected_item = new ItemSpec(s);
1151
1152                                         if(button == 1)  // right
1153                                                 m_selected_amount = (s_count + 1) / 2;
1154                                         else if(button == 2)  // middle
1155                                                 m_selected_amount = MYMIN(s_count, 10);
1156                                         else  // left
1157                                                 m_selected_amount = s_count;
1158
1159                                         m_selected_dragging = true;
1160                                 }
1161                         }
1162                         else  // m_selected_item != NULL
1163                         {
1164                                 assert(m_selected_amount >= 1);
1165
1166                                 if(s.isValid())
1167                                 {
1168                                         // Clicked a slot: move
1169                                         if(button == 1)  // right
1170                                                 move_amount = 1;
1171                                         else if(button == 2)  // middle
1172                                                 move_amount = MYMIN(m_selected_amount, 10);
1173                                         else  // left
1174                                                 move_amount = m_selected_amount;
1175
1176                                         if(identical)
1177                                         {
1178                                                 if(move_amount >= m_selected_amount)
1179                                                         m_selected_amount = 0;
1180                                                 else
1181                                                         m_selected_amount -= move_amount;
1182                                                 move_amount = 0;
1183                                         }
1184                                 }
1185                                 else if(getAbsoluteClippingRect().isPointInside(m_pointer))
1186                                 {
1187                                         // Clicked somewhere else: deselect
1188                                         m_selected_amount = 0;
1189                                 }
1190                                 else
1191                                 {
1192                                         // Clicked outside of the window: drop
1193                                         if(button == 1)  // right
1194                                                 drop_amount = 1;
1195                                         else if(button == 2)  // middle
1196                                                 drop_amount = MYMIN(m_selected_amount, 10);
1197                                         else  // left
1198                                                 drop_amount = m_selected_amount;
1199                                 }
1200                         }
1201                 }
1202                 else if(updown == 1)
1203                 {
1204                         // Some mouse button has been released
1205
1206                         //infostream<<"Mouse button "<<button<<" released at p=("
1207                         //      <<p.X<<","<<p.Y<<")"<<std::endl;
1208
1209                         if(m_selected_item != NULL && m_selected_dragging && s.isValid())
1210                         {
1211                                 if(!identical)
1212                                 {
1213                                         // Dragged to different slot: move all selected
1214                                         move_amount = m_selected_amount;
1215                                 }
1216                         }
1217                         else if(m_selected_item != NULL && m_selected_dragging &&
1218                                 !(getAbsoluteClippingRect().isPointInside(m_pointer)))
1219                         {
1220                                 // Dragged outside of window: drop all selected
1221                                 drop_amount = m_selected_amount;
1222                         }
1223
1224                         m_selected_dragging = false;
1225                 }
1226
1227                 // Possibly send inventory action to server
1228                 if(move_amount > 0)
1229                 {
1230                         // Send IACTION_MOVE
1231
1232                         assert(m_selected_item && m_selected_item->isValid());
1233                         assert(s.isValid());
1234
1235                         assert(inv_selected && inv_s);
1236                         InventoryList *list_from = inv_selected->getList(m_selected_item->listname);
1237                         InventoryList *list_to = inv_s->getList(s.listname);
1238                         assert(list_from && list_to);
1239                         ItemStack stack_from = list_from->getItem(m_selected_item->i);
1240                         ItemStack stack_to = list_to->getItem(s.i);
1241
1242                         // Check how many items can be moved
1243                         move_amount = stack_from.count = MYMIN(move_amount, stack_from.count);
1244                         ItemStack leftover = stack_to.addItem(stack_from, m_gamedef->idef());
1245                         // If source stack cannot be added to destination stack at all,
1246                         // they are swapped
1247                         if(leftover.count == stack_from.count && leftover.name == stack_from.name)
1248                         {
1249                                 m_selected_amount = stack_to.count;
1250                                 // In case the server doesn't directly swap them but instead
1251                                 // moves stack_to somewhere else, set this
1252                                 m_selected_content_guess = stack_to;
1253                                 m_selected_content_guess_inventory = s.inventoryloc;
1254                         }
1255                         // Source stack goes fully into destination stack
1256                         else if(leftover.empty())
1257                         {
1258                                 m_selected_amount -= move_amount;
1259                                 m_selected_content_guess = ItemStack(); // Clear
1260                         }
1261                         // Source stack goes partly into destination stack
1262                         else
1263                         {
1264                                 move_amount -= leftover.count;
1265                                 m_selected_amount -= move_amount;
1266                                 m_selected_content_guess = ItemStack(); // Clear
1267                         }
1268
1269                         infostream<<"Handing IACTION_MOVE to manager"<<std::endl;
1270                         IMoveAction *a = new IMoveAction();
1271                         a->count = move_amount;
1272                         a->from_inv = m_selected_item->inventoryloc;
1273                         a->from_list = m_selected_item->listname;
1274                         a->from_i = m_selected_item->i;
1275                         a->to_inv = s.inventoryloc;
1276                         a->to_list = s.listname;
1277                         a->to_i = s.i;
1278                         m_invmgr->inventoryAction(a);
1279                 }
1280                 else if(drop_amount > 0)
1281                 {
1282                         m_selected_content_guess = ItemStack(); // Clear
1283
1284                         // Send IACTION_DROP
1285
1286                         assert(m_selected_item && m_selected_item->isValid());
1287                         assert(inv_selected);
1288                         InventoryList *list_from = inv_selected->getList(m_selected_item->listname);
1289                         assert(list_from);
1290                         ItemStack stack_from = list_from->getItem(m_selected_item->i);
1291
1292                         // Check how many items can be dropped
1293                         drop_amount = stack_from.count = MYMIN(drop_amount, stack_from.count);
1294                         assert(drop_amount > 0 && drop_amount <= m_selected_amount);
1295                         m_selected_amount -= drop_amount;
1296
1297                         infostream<<"Handing IACTION_DROP to manager"<<std::endl;
1298                         IDropAction *a = new IDropAction();
1299                         a->count = drop_amount;
1300                         a->from_inv = m_selected_item->inventoryloc;
1301                         a->from_list = m_selected_item->listname;
1302                         a->from_i = m_selected_item->i;
1303                         m_invmgr->inventoryAction(a);
1304                 }
1305                 else if(craft_amount > 0)
1306                 {
1307                         m_selected_content_guess = ItemStack(); // Clear
1308
1309                         // Send IACTION_CRAFT
1310
1311                         assert(s.isValid());
1312                         assert(inv_s);
1313
1314                         infostream<<"Handing IACTION_CRAFT to manager"<<std::endl;
1315                         ICraftAction *a = new ICraftAction();
1316                         a->count = craft_amount;
1317                         a->craft_inv = s.inventoryloc;
1318                         m_invmgr->inventoryAction(a);
1319                 }
1320
1321                 // If m_selected_amount has been decreased to zero, deselect
1322                 if(m_selected_amount == 0)
1323                 {
1324                         delete m_selected_item;
1325                         m_selected_item = NULL;
1326                         m_selected_amount = 0;
1327                         m_selected_dragging = false;
1328                         m_selected_content_guess = ItemStack();
1329                 }
1330         }
1331         if(event.EventType==EET_GUI_EVENT)
1332         {
1333                 if(event.GUIEvent.EventType==gui::EGET_ELEMENT_FOCUS_LOST
1334                                 && isVisible())
1335                 {
1336                         if(!canTakeFocus(event.GUIEvent.Element))
1337                         {
1338                                 infostream<<"GUIFormSpecMenu: Not allowing focus change."
1339                                                 <<std::endl;
1340                                 // Returning true disables focus change
1341                                 return true;
1342                         }
1343                 }
1344                 if(event.GUIEvent.EventType==gui::EGET_BUTTON_CLICKED)
1345                 {
1346                         switch(event.GUIEvent.Caller->getID())
1347                         {
1348                         case 257:
1349                                 acceptInput();
1350                                 quitMenu();
1351                                 // quitMenu deallocates menu
1352                                 return true;
1353                         }
1354                         // find the element that was clicked
1355                         for(u32 i=0; i<m_fields.size(); i++)
1356                         {
1357                                 FieldSpec &s = m_fields[i];
1358                                 // if its a button, set the send field so
1359                                 // lua knows which button was pressed
1360                                 if (s.is_button && s.fid == event.GUIEvent.Caller->getID())
1361                                 {
1362                                         s.send = true;
1363                                         acceptInput();
1364                                         if(s.is_exit){
1365                                                 quitMenu();
1366                                                 return true;
1367                                         }else{
1368                                                 s.send = false;
1369                                                 // Restore focus to the full form
1370                                                 Environment->setFocus(this);
1371                                                 return true;
1372                                         }
1373                                 }
1374                         }
1375                 }
1376                 if(event.GUIEvent.EventType==gui::EGET_EDITBOX_ENTER)
1377                 {
1378                         if(event.GUIEvent.Caller->getID() > 257)
1379                         {
1380                                 acceptInput();
1381                                 quitMenu();
1382                                 // quitMenu deallocates menu
1383                                 return true;
1384                         }
1385                 }
1386         }
1387
1388         return Parent ? Parent->OnEvent(event) : false;
1389 }
1390