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