src/guiFormSpecMenu.cpp

   1 /*
   2 Minetest
   3 Copyright (C) 2013 celeron55, Perttu Ahola <celeron55@gmail.com>
   4
   5 This program is free software; you can redistribute it and/or modify
   6 it under the terms of the GNU Lesser General Public License as published by
   7 the Free Software Foundation; either version 2.1 of the License, or
   8 (at your option) any later version.
   9
  10 This program is distributed in the hope that it will be useful,
  11 but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 GNU Lesser General Public License for more details.
  14
  15 You should have received a copy of the GNU Lesser General Public License along
  16 with this program; if not, write to the Free Software Foundation, Inc.,
  17 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  18 */
  19
  20
  21 #include "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_esc("["));
 211                 if(type == "invsize" || type == "size")
 212                 {
 213                         v2f invsize;
 214                         invsize.X = stof(f.next_esc(","));
 215                         if(type == "size")
 216                         {
 217                                 invsize.Y = stof(f.next_esc("]"));
 218                         }
 219                         else{
 220                                 invsize.Y = stof(f.next_esc(";"));
 221                                 f.next_esc("]");
 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_esc(";");
 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_esc(";");
 252                         v2s32 pos = basepos;
 253                         pos.X += stof(f.next_esc(",")) * (float)spacing.X;
 254                         pos.Y += stof(f.next_esc(";")) * (float)spacing.Y;
 255                         v2s32 geom;
 256                         geom.X = stoi(f.next_esc(","));
 257                         geom.Y = stoi(f.next_esc(";"));
 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_esc("]");
 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_esc(",")) * (float)spacing.X;
 274                         pos.Y += stof(f.next_esc(";")) * (float)spacing.Y;
 275                         v2s32 geom;
 276                         geom.X = stof(f.next_esc(",")) * (float)imgsize.X;
 277                         geom.Y = stof(f.next_esc(";")) * (float)imgsize.Y;
 278                         std::string name = f.next_esc("]");
 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_esc(",")) * (float)spacing.X;
 291                         pos.Y += stof(f.next_esc(";")) * (float)spacing.Y;
 292                         v2s32 geom;
 293                         geom.X = stof(f.next_esc(",")) * (float)imgsize.X;
 294                         geom.Y = stof(f.next_esc(";")) * (float)imgsize.Y;
 295                         std::string name = f.next_esc("]");
 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_esc(",")) * (float)spacing.X - ((float)spacing.X-(float)imgsize.X)/2;
 308                         pos.Y += stof(f.next_esc(";")) * (float)spacing.Y - ((float)spacing.Y-(float)imgsize.Y)/2;
 309                         v2s32 geom;
 310                         geom.X = stof(f.next_esc(",")) * (float)spacing.X;
 311                         geom.Y = stof(f.next_esc(";")) * (float)spacing.Y;
 312                         std::string name = f.next_esc("]");
 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" || type == "textarea")
 322                 {
 323                         std::string fname = f.next_esc(";");
 324                         std::string flabel = f.next_esc(";");
 325
 326                         if(fname.find(",") == std::string::npos && flabel.find(",") == std::string::npos)
 327                         {
 328                                 if (type == "textarea")
 329                                         errorstream<<"WARNING: Textarea connot be unpositioned"<<std::endl;
 330
 331                                 if(!bp_set)
 332                                 {
 333                                         rect = core::rect<s32>(
 334                                                 screensize.X/2 - 580/2,
 335                                                 screensize.Y/2 - 300/2,
 336                                                 screensize.X/2 + 580/2,
 337                                                 screensize.Y/2 + 300/2
 338                                         );
 339                                         DesiredRect = rect;
 340                                         recalculateAbsolutePosition(false);
 341                                         basepos = getBasePos();
 342                                         bp_set = 1;
 343                                 }
 344                                 else if(bp_set == 2)
 345                                         errorstream<<"WARNING: invalid use of unpositioned "<<type<<" in inventory"<<std::endl;
 346
 347                                 v2s32 pos = basepos;
 348                                 pos.Y = ((m_fields.size()+2)*60);
 349                                 v2s32 size = DesiredRect.getSize();
 350                                 rect = core::rect<s32>(size.X/2-150, pos.Y, (size.X/2-150)+300, pos.Y+30);
 351                         }
 352                         else
 353                         {
 354                                 v2s32 pos;
 355                                 pos.X = stof(fname.substr(0,fname.find(","))) * (float)spacing.X;
 356                                 pos.Y = stof(fname.substr(fname.find(",")+1)) * (float)spacing.Y;
 357                                 v2s32 geom;
 358                                 geom.X = (stof(flabel.substr(0,flabel.find(","))) * (float)spacing.X)-(spacing.X-imgsize.X);
 359                                 if (type == "textarea")
 360                                 {
 361                                         geom.Y = (stof(flabel.substr(flabel.find(",")+1)) * (float)imgsize.Y) - (spacing.Y-imgsize.Y);
 362                                         pos.Y += 15;
 363                                 }
 364                                 else
 365                                 {
 366                                         pos.Y += (stof(flabel.substr(flabel.find(",")+1)) * (float)imgsize.Y)/2;
 367                                         pos.Y -= 15;
 368                                         geom.Y = 30;
 369                                 }
 370
 371                                 rect = core::rect<s32>(pos.X, pos.Y, pos.X+geom.X, pos.Y+geom.Y);
 372
 373
 374
 375                                 fname = f.next_esc(";");
 376                                 flabel = f.next_esc(";");
 377                                 if(bp_set != 2)
 378                                         errorstream<<"WARNING: invalid use of positioned "<<type<<" without a size[] element"<<std::endl;
 379
 380                         }
 381
 382                         std::string odefault = f.next_esc("]");
 383                         std::string fdefault;
 384
 385                         // fdefault may contain a variable reference, which
 386                         // needs to be resolved from the node metadata
 387                         if(m_form_src)
 388                                 fdefault = m_form_src->resolveText(odefault);
 389                         else
 390                                 fdefault = odefault;
 391
 392                         fdefault = unescape_string(fdefault);
 393                         flabel = unescape_string(flabel);
 394
 395                         FieldSpec spec = FieldSpec(
 396                                 narrow_to_wide(fname.c_str()),
 397                                 narrow_to_wide(flabel.c_str()),
 398                                 narrow_to_wide(fdefault.c_str()),
 399                                 258+m_fields.size()
 400                         );
 401
 402                         // three cases: field name and no label, label and field, label name and no field
 403                         gui::IGUIEditBox *e;
 404                         if (fname == "")
 405                         {
 406                                 // spec field id to 0, this stops submit searching for a value that isn't there
 407                                 Environment->addStaticText(spec.flabel.c_str(), rect, false, true, this, spec.fid);
 408                         }
 409                         else
 410                         {
 411                                 spec.send = true;
 412                                 e = Environment->addEditBox(spec.fdefault.c_str(), rect, true, this, spec.fid);
 413                                 Environment->setFocus(e);
 414
 415                                 if (type == "textarea")
 416                                 {
 417                                         e->setMultiLine(true);
 418                                         e->setTextAlignment(gui::EGUIA_UPPERLEFT, gui::EGUIA_UPPERLEFT);
 419                                 } else {
 420                                         irr::SEvent evt;
 421                                         evt.KeyInput.Key = KEY_END;
 422                                         evt.EventType = EET_KEY_INPUT_EVENT;
 423                                         evt.KeyInput.PressedDown = true;
 424                                         e->OnEvent(evt);
 425                                 }
 426
 427                                 if (flabel != "")
 428                                 {
 429                                         rect.UpperLeftCorner.Y -= 15;
 430                                         rect.LowerRightCorner.Y = rect.UpperLeftCorner.Y + 15;
 431                                         Environment->addStaticText(spec.flabel.c_str(), rect, false, true, this, 0);
 432                                 }
 433                         }
 434
 435                         m_fields.push_back(spec);
 436                 }
 437                 else if(type == "label")
 438                 {
 439                         v2s32 pos = padding;
 440                         pos.X += stof(f.next_esc(",")) * (float)spacing.X;
 441                         pos.Y += stof(f.next_esc(";")) * (float)spacing.Y;
 442
 443                         rect = core::rect<s32>(pos.X, pos.Y+((imgsize.Y/2)-15), pos.X+300, pos.Y+((imgsize.Y/2)+15));
 444
 445                         std::string flabel = f.next_esc("]");
 446                         if(bp_set != 2)
 447                                 errorstream<<"WARNING: invalid use of label without a size[] element"<<std::endl;
 448
 449                         flabel = unescape_string(flabel);
 450
 451                         FieldSpec spec = FieldSpec(
 452                                 narrow_to_wide(""),
 453                                 narrow_to_wide(flabel.c_str()),
 454                                 narrow_to_wide(""),
 455                                 258+m_fields.size()
 456                         );
 457                         Environment->addStaticText(spec.flabel.c_str(), rect, false, true, this, spec.fid);
 458                         m_fields.push_back(spec);
 459                 }
 460                 else if(type == "button" || type == "button_exit")
 461                 {
 462                         v2s32 pos = padding;
 463                         pos.X += stof(f.next_esc(",")) * (float)spacing.X;
 464                         pos.Y += stof(f.next_esc(";")) * (float)spacing.Y;
 465                         v2s32 geom;
 466                         geom.X = (stof(f.next_esc(",")) * (float)spacing.X)-(spacing.X-imgsize.X);
 467                         pos.Y += (stof(f.next_esc(";")) * (float)imgsize.Y)/2;
 468
 469                         rect = core::rect<s32>(pos.X, pos.Y-15, pos.X+geom.X, pos.Y+15);
 470
 471                         std::string fname = f.next_esc(";");
 472                         std::string flabel = f.next_esc("]");
 473                         if(bp_set != 2)
 474                                 errorstream<<"WARNING: invalid use of button without a size[] element"<<std::endl;
 475
 476                         flabel = unescape_string(flabel);
 477
 478                         FieldSpec spec = FieldSpec(
 479                                 narrow_to_wide(fname.c_str()),
 480                                 narrow_to_wide(flabel.c_str()),
 481                                 narrow_to_wide(""),
 482                                 258+m_fields.size()
 483                         );
 484                         spec.is_button = true;
 485                         if(type == "button_exit")
 486                                 spec.is_exit = true;
 487                         Environment->addButton(rect, this, spec.fid, spec.flabel.c_str());
 488                         m_fields.push_back(spec);
 489                 }
 490                 else if(type == "image_button" || type == "image_button_exit")
 491                 {
 492                         v2s32 pos = padding;
 493                         pos.X += stof(f.next_esc(",")) * (float)spacing.X;
 494                         pos.Y += stof(f.next_esc(";")) * (float)spacing.Y;
 495                         v2s32 geom;
 496                         geom.X = (stof(f.next_esc(",")) * (float)spacing.X)-(spacing.X-imgsize.X);
 497                         geom.Y = (stof(f.next_esc(";")) * (float)spacing.Y)-(spacing.Y-imgsize.Y);
 498
 499                         rect = core::rect<s32>(pos.X, pos.Y, pos.X+geom.X, pos.Y+geom.Y);
 500
 501                         std::string fimage = f.next_esc(";");
 502                         std::string fname = f.next_esc(";");
 503                         std::string flabel = f.next_esc("]");
 504                         if(bp_set != 2)
 505                                 errorstream<<"WARNING: invalid use of image_button without a size[] element"<<std::endl;
 506
 507                         flabel = unescape_string(flabel);
 508
 509                         FieldSpec spec = FieldSpec(
 510                                 narrow_to_wide(fname.c_str()),
 511                                 narrow_to_wide(flabel.c_str()),
 512                                 narrow_to_wide(fimage.c_str()),
 513                                 258+m_fields.size()
 514                         );
 515                         spec.is_button = true;
 516                         if(type == "image_button_exit")
 517                                 spec.is_exit = true;
 518
 519                         video::ITexture *texture = m_gamedef->tsrc()->getTextureRaw(fimage);
 520                         gui::IGUIButton *e = Environment->addButton(rect, this, spec.fid, spec.flabel.c_str());
 521                         e->setUseAlphaChannel(true);
 522                         e->setImage(texture);
 523                         e->setPressedImage(texture);
 524                         e->setScaleImage(true);
 525
 526                         m_fields.push_back(spec);
 527                 }
 528                 else if(type == "item_image_button")
 529                 {
 530                         v2s32 pos = padding;
 531                         pos.X += stof(f.next_esc(",")) * (float)spacing.X;
 532                         pos.Y += stof(f.next_esc(";")) * (float)spacing.Y;
 533                         v2s32 geom;
 534                         geom.X = (stof(f.next_esc(",")) * (float)spacing.X)-(spacing.X-imgsize.X);
 535                         geom.Y = (stof(f.next_esc(";")) * (float)spacing.Y)-(spacing.Y-imgsize.Y);
 536                         rect = core::rect<s32>(pos.X, pos.Y, pos.X+geom.X, pos.Y+geom.Y);
 537                         std::string fimage = f.next_esc(";");
 538                         std::string fname = f.next_esc(";");
 539                         std::string flabel = f.next_esc("]");
 540                         if(bp_set != 2)
 541                                 errorstream<<"WARNING: invalid use of item_image_button without a size[] element"<<std::endl;
 542                         IItemDefManager *idef = m_gamedef->idef();
 543                         ItemStack item;
 544                         item.deSerialize(fimage, idef);
 545                         video::ITexture *texture = idef->getInventoryTexture(item.getDefinition(idef).name, m_gamedef);
 546                         std::string tooltip = item.getDefinition(idef).description;
 547                         flabel = unescape_string(flabel);
 548                         FieldSpec spec = FieldSpec(
 549                                 narrow_to_wide(fname.c_str()),
 550                                 narrow_to_wide(flabel.c_str()),
 551                                 narrow_to_wide(fimage.c_str()),
 552                                 258+m_fields.size()
 553                         );
 554                         gui::IGUIButton *e = Environment->addButton(rect, this, spec.fid, spec.flabel.c_str());
 555                         e->setUseAlphaChannel(true);
 556                         e->setImage(texture);
 557                         e->setPressedImage(texture);
 558                         e->setScaleImage(true);
 559                         spec.is_button = true;
 560                         rect+=basepos-padding;
 561                         spec.rect=rect;
 562                         if (tooltip!="")
 563                                 spec.tooltip=tooltip;
 564                         m_fields.push_back(spec);
 565                 }
 566                 else
 567                 {
 568                         // Ignore others
 569                         std::string ts = f.next_esc("]");
 570                         infostream<<"Unknown DrawSpec: type="<<type<<", data=\""<<ts<<"\""
 571                                         <<std::endl;
 572                 }
 573         }
 574
 575         // If there's inventory, put the usage string at the bottom
 576         if (m_inventorylists.size())
 577         {
 578                 changeCtype("");
 579                 core::rect<s32> rect(0, 0, size.X-padding.X*2, helptext_h);
 580                 rect = rect + v2s32(size.X/2 - rect.getWidth()/2,
 581                                 size.Y-rect.getHeight()-5);
 582                 const wchar_t *text = wgettext("Left click: Move all items, Right click: Move single item");
 583                 Environment->addStaticText(text, rect, false, true, this, 256);
 584                 changeCtype("C");
 585         }
 586         // If there's fields, add a Proceed button
 587         if (m_fields.size() && bp_set != 2)
 588         {
 589                 // if the size wasn't set by an invsize[] or size[] adjust it now to fit all the fields
 590                 rect = core::rect<s32>(
 591                         screensize.X/2 - 580/2,
 592                         screensize.Y/2 - 300/2,
 593                         screensize.X/2 + 580/2,
 594                         screensize.Y/2 + 240/2+(m_fields.size()*60)
 595                 );
 596                 DesiredRect = rect;
 597                 recalculateAbsolutePosition(false);
 598                 basepos = getBasePos();
 599
 600                 changeCtype("");
 601                 {
 602                         v2s32 pos = basepos;
 603                         pos.Y = ((m_fields.size()+2)*60);
 604
 605                         v2s32 size = DesiredRect.getSize();
 606                         rect = core::rect<s32>(size.X/2-70, pos.Y, (size.X/2-70)+140, pos.Y+30);
 607                         Environment->addButton(rect, this, 257, wgettext("Proceed"));
 608                 }
 609                 changeCtype("C");
 610         }
 611         // Add tooltip
 612         {
 613                 // Note: parent != this so that the tooltip isn't clipped by the menu rectangle
 614                 m_tooltip_element = Environment->addStaticText(L"",core::rect<s32>(0,0,110,18));
 615                 m_tooltip_element->enableOverrideColor(true);
 616                 m_tooltip_element->setBackgroundColor(video::SColor(255,110,130,60));
 617                 m_tooltip_element->setDrawBackground(true);
 618                 m_tooltip_element->setDrawBorder(true);
 619                 m_tooltip_element->setOverrideColor(video::SColor(255,255,255,255));
 620                 m_tooltip_element->setTextAlignment(gui::EGUIA_CENTER, gui::EGUIA_CENTER);
 621                 m_tooltip_element->setWordWrap(false);
 622         }
 623 }
 624
 625 GUIFormSpecMenu::ItemSpec GUIFormSpecMenu::getItemAtPos(v2s32 p) const
 626 {
 627         core::rect<s32> imgrect(0,0,imgsize.X,imgsize.Y);
 628
 629         for(u32 i=0; i<m_inventorylists.size(); i++)
 630         {
 631                 const ListDrawSpec &s = m_inventorylists[i];
 632
 633                 for(s32 i=0; i<s.geom.X*s.geom.Y; i++)
 634                 {
 635                         s32 item_i = i + s.start_item_i;
 636                         s32 x = (i%s.geom.X) * spacing.X;
 637                         s32 y = (i/s.geom.X) * spacing.Y;
 638                         v2s32 p0(x,y);
 639                         core::rect<s32> rect = imgrect + s.pos + p0;
 640                         if(rect.isPointInside(p))
 641                         {
 642                                 return ItemSpec(s.inventoryloc, s.listname, item_i);
 643                         }
 644                 }
 645         }
 646
 647         return ItemSpec(InventoryLocation(), "", -1);
 648 }
 649
 650 void GUIFormSpecMenu::drawList(const ListDrawSpec &s, int phase)
 651 {
 652         video::IVideoDriver* driver = Environment->getVideoDriver();
 653
 654         // Get font
 655         gui::IGUIFont *font = NULL;
 656         gui::IGUISkin* skin = Environment->getSkin();
 657         if (skin)
 658                 font = skin->getFont();
 659
 660         Inventory *inv = m_invmgr->getInventory(s.inventoryloc);
 661         if(!inv){
 662                 infostream<<"GUIFormSpecMenu::drawList(): WARNING: "
 663                                 <<"The inventory location "
 664                                 <<"\""<<s.inventoryloc.dump()<<"\" doesn't exist"
 665                                 <<std::endl;
 666                 return;
 667         }
 668         InventoryList *ilist = inv->getList(s.listname);
 669         if(!ilist){
 670                 infostream<<"GUIFormSpecMenu::drawList(): WARNING: "
 671                                 <<"The inventory list \""<<s.listname<<"\" @ \""
 672                                 <<s.inventoryloc.dump()<<"\" doesn't exist"
 673                                 <<std::endl;
 674                 return;
 675         }
 676
 677         core::rect<s32> imgrect(0,0,imgsize.X,imgsize.Y);
 678
 679         for(s32 i=0; i<s.geom.X*s.geom.Y; i++)
 680         {
 681                 u32 item_i = i + s.start_item_i;
 682                 if(item_i >= ilist->getSize())
 683                         break;
 684                 s32 x = (i%s.geom.X) * spacing.X;
 685                 s32 y = (i/s.geom.X) * spacing.Y;
 686                 v2s32 p(x,y);
 687                 core::rect<s32> rect = imgrect + s.pos + p;
 688                 ItemStack item;
 689                 if(ilist)
 690                         item = ilist->getItem(item_i);
 691
 692                 bool selected = m_selected_item
 693                         && m_invmgr->getInventory(m_selected_item->inventoryloc) == inv
 694                         && m_selected_item->listname == s.listname
 695                         && m_selected_item->i == i;
 696                 bool hovering = rect.isPointInside(m_pointer);
 697
 698                 if(phase == 0)
 699                 {
 700                         if(hovering && m_selected_item)
 701                         {
 702                                 video::SColor bgcolor(255,192,192,192);
 703                                 driver->draw2DRectangle(bgcolor, rect, &AbsoluteClippingRect);
 704                         }
 705                         else
 706                         {
 707                                 video::SColor bgcolor(255,128,128,128);
 708                                 driver->draw2DRectangle(bgcolor, rect, &AbsoluteClippingRect);
 709                         }
 710                 }
 711
 712                 if(phase == 1)
 713                 {
 714                         // Draw item stack
 715                         if(selected)
 716                         {
 717                                 item.takeItem(m_selected_amount);
 718                         }
 719                         if(!item.empty())
 720                         {
 721                                 drawItemStack(driver, font, item,
 722                                                 rect, &AbsoluteClippingRect, m_gamedef);
 723                         }
 724
 725                         // Draw tooltip
 726                         std::string tooltip_text = "";
 727                         if(hovering && !m_selected_item)
 728                                 tooltip_text = item.getDefinition(m_gamedef->idef()).description;
 729                         if(tooltip_text != "")
 730                         {
 731                                 m_tooltip_element->setVisible(true);
 732                                 this->bringToFront(m_tooltip_element);
 733                                 m_tooltip_element->setText(narrow_to_wide(tooltip_text).c_str());
 734                                 s32 tooltip_x = m_pointer.X + 15;
 735                                 s32 tooltip_y = m_pointer.Y + 15;
 736                                 s32 tooltip_width = m_tooltip_element->getTextWidth() + 15;
 737                                 s32 tooltip_height = m_tooltip_element->getTextHeight() + 5;
 738                                 m_tooltip_element->setRelativePosition(core::rect<s32>(
 739                                                 core::position2d<s32>(tooltip_x, tooltip_y),
 740                                                 core::dimension2d<s32>(tooltip_width, tooltip_height)));
 741                         }
 742                 }
 743         }
 744 }
 745
 746 void GUIFormSpecMenu::drawSelectedItem()
 747 {
 748         if(!m_selected_item)
 749                 return;
 750
 751         video::IVideoDriver* driver = Environment->getVideoDriver();
 752
 753         // Get font
 754         gui::IGUIFont *font = NULL;
 755         gui::IGUISkin* skin = Environment->getSkin();
 756         if (skin)
 757                 font = skin->getFont();
 758
 759         Inventory *inv = m_invmgr->getInventory(m_selected_item->inventoryloc);
 760         assert(inv);
 761         InventoryList *list = inv->getList(m_selected_item->listname);
 762         assert(list);
 763         ItemStack stack = list->getItem(m_selected_item->i);
 764         stack.count = m_selected_amount;
 765
 766         core::rect<s32> imgrect(0,0,imgsize.X,imgsize.Y);
 767         core::rect<s32> rect = imgrect + (m_pointer - imgrect.getCenter());
 768         drawItemStack(driver, font, stack, rect, NULL, m_gamedef);
 769 }
 770
 771 void GUIFormSpecMenu::drawMenu()
 772 {
 773         if(m_form_src){
 774                 std::string newform = m_form_src->getForm();
 775                 if(newform != m_formspec_string){
 776                         m_formspec_string = newform;
 777                         regenerateGui(m_screensize_old);
 778                 }
 779         }
 780
 781         m_pointer = m_device->getCursorControl()->getPosition();
 782
 783         updateSelectedItem();
 784
 785         gui::IGUISkin* skin = Environment->getSkin();
 786         if (!skin)
 787                 return;
 788         video::IVideoDriver* driver = Environment->getVideoDriver();
 789
 790         video::SColor bgcolor(140,0,0,0);
 791         driver->draw2DRectangle(bgcolor, AbsoluteRect, &AbsoluteClippingRect);
 792
 793         m_tooltip_element->setVisible(false);
 794
 795         /*
 796                 Draw backgrounds
 797         */
 798         for(u32 i=0; i<m_backgrounds.size(); i++)
 799         {
 800                 const ImageDrawSpec &spec = m_backgrounds[i];
 801                 video::ITexture *texture =
 802                                 m_gamedef->tsrc()->getTextureRaw(spec.name);
 803                 // Image size on screen
 804                 core::rect<s32> imgrect(0, 0, spec.geom.X, spec.geom.Y);
 805                 // Image rectangle on screen
 806                 core::rect<s32> rect = imgrect + spec.pos;
 807                 const video::SColor color(255,255,255,255);
 808                 const video::SColor colors[] = {color,color,color,color};
 809                 driver->draw2DImage(texture, rect,
 810                         core::rect<s32>(core::position2d<s32>(0,0),
 811                                         core::dimension2di(texture->getOriginalSize())),
 812                         NULL/*&AbsoluteClippingRect*/, colors, true);
 813         }
 814
 815         /*
 816                 Draw images
 817         */
 818         for(u32 i=0; i<m_images.size(); i++)
 819         {
 820                 const ImageDrawSpec &spec = m_images[i];
 821                 video::ITexture *texture =
 822                                 m_gamedef->tsrc()->getTextureRaw(spec.name);
 823                 // Image size on screen
 824                 core::rect<s32> imgrect(0, 0, spec.geom.X, spec.geom.Y);
 825                 // Image rectangle on screen
 826                 core::rect<s32> rect = imgrect + spec.pos;
 827                 const video::SColor color(255,255,255,255);
 828                 const video::SColor colors[] = {color,color,color,color};
 829                 driver->draw2DImage(texture, rect,
 830                         core::rect<s32>(core::position2d<s32>(0,0),
 831                                         core::dimension2di(texture->getOriginalSize())),
 832                         NULL/*&AbsoluteClippingRect*/, colors, true);
 833         }
 834
 835         /*
 836                 Draw item images
 837         */
 838         for(u32 i=0; i<m_itemimages.size(); i++)
 839         {
 840                 const ImageDrawSpec &spec = m_itemimages[i];
 841                 IItemDefManager *idef = m_gamedef->idef();
 842                 ItemStack item;
 843                 item.deSerialize(spec.name, idef);
 844                 video::ITexture *texture = idef->getInventoryTexture(item.getDefinition(idef).name, m_gamedef);
 845                 // Image size on screen
 846                 core::rect<s32> imgrect(0, 0, spec.geom.X, spec.geom.Y);
 847                 // Image rectangle on screen
 848                 core::rect<s32> rect = imgrect + spec.pos;
 849                 const video::SColor color(255,255,255,255);
 850                 const video::SColor colors[] = {color,color,color,color};
 851                 driver->draw2DImage(texture, rect,
 852                         core::rect<s32>(core::position2d<s32>(0,0),
 853                                         core::dimension2di(texture->getOriginalSize())),
 854                         NULL/*&AbsoluteClippingRect*/, colors, true);
 855         }
 856
 857         /*
 858                 Draw items
 859                 Phase 0: Item slot rectangles
 860                 Phase 1: Item images; prepare tooltip
 861                 If backgrounds used, do not draw Item slot rectangles
 862         */
 863         int start_phase=0;
 864         if (m_backgrounds.size() > 0) start_phase=1;
 865         for(int phase=start_phase; phase<=1; phase++)
 866         for(u32 i=0; i<m_inventorylists.size(); i++)
 867         {
 868                 drawList(m_inventorylists[i], phase);
 869         }
 870
 871         /*
 872                 Call base class
 873         */
 874         gui::IGUIElement::draw();
 875
 876         /*
 877                 Draw fields/buttons tooltips
 878         */
 879         for(u32 i=0; i<m_fields.size(); i++)
 880         {
 881                 const FieldSpec &spec = m_fields[i];
 882                 if (spec.tooltip != "")
 883                 {
 884                         core::rect<s32> rect = spec.rect;
 885                         if (rect.isPointInside(m_pointer))
 886                         {
 887                                 m_tooltip_element->setVisible(true);
 888                                 this->bringToFront(m_tooltip_element);
 889                                 m_tooltip_element->setText(narrow_to_wide(spec.tooltip).c_str());
 890                                 s32 tooltip_x = m_pointer.X + 15;
 891                                 s32 tooltip_y = m_pointer.Y + 15;
 892                                 s32 tooltip_width = m_tooltip_element->getTextWidth() + 15;
 893                                 s32 tooltip_height = m_tooltip_element->getTextHeight() + 5;
 894                                 m_tooltip_element->setRelativePosition(core::rect<s32>(
 895                                 core::position2d<s32>(tooltip_x, tooltip_y),
 896                                 core::dimension2d<s32>(tooltip_width, tooltip_height)));
 897                         }
 898                 }
 899         }
 900
 901         /*
 902                 Draw dragged item stack
 903         */
 904         drawSelectedItem();
 905 }
 906
 907 void GUIFormSpecMenu::updateSelectedItem()
 908 {
 909         // WARNING: BLACK MAGIC
 910         // See if there is a stack suited for our current guess.
 911         // If such stack does not exist, clear the guess.
 912         if(m_selected_content_guess.name != "")
 913         {
 914                 bool found = false;
 915                 for(u32 i=0; i<m_inventorylists.size() && !found; i++){
 916                         const ListDrawSpec &s = m_inventorylists[i];
 917                         Inventory *inv = m_invmgr->getInventory(s.inventoryloc);
 918                         if(!inv)
 919                                 continue;
 920                         InventoryList *list = inv->getList(s.listname);
 921                         if(!list)
 922                                 continue;
 923                         for(s32 i=0; i<s.geom.X*s.geom.Y && !found; i++){
 924                                 u32 item_i = i + s.start_item_i;
 925                                 if(item_i >= list->getSize())
 926                                         continue;
 927                                 ItemStack stack = list->getItem(item_i);
 928                                 if(stack.name == m_selected_content_guess.name &&
 929                                                 stack.count == m_selected_content_guess.count){
 930                                         found = true;
 931                                         if(m_selected_item){
 932                                                 // If guessed stack is already selected, all is fine
 933                                                 if(m_selected_item->inventoryloc == s.inventoryloc &&
 934                                                                 m_selected_item->listname == s.listname &&
 935                                                                 m_selected_item->i == (s32)item_i &&
 936                                                                 m_selected_amount == stack.count){
 937                                                         break;
 938                                                 }
 939                                                 delete m_selected_item;
 940                                                 m_selected_item = NULL;
 941                                         }
 942                                         infostream<<"Client: Changing selected content guess to "
 943                                                         <<s.inventoryloc.dump()<<" "<<s.listname
 944                                                         <<" "<<item_i<<std::endl;
 945                                         m_selected_item = new ItemSpec(s.inventoryloc, s.listname, item_i);
 946                                         m_selected_amount = stack.count;
 947                                         break;
 948                                 }
 949                         }
 950                 }
 951                 if(!found){
 952                         infostream<<"Client: Discarding selected content guess: "
 953                                         <<m_selected_content_guess.getItemString()<<std::endl;
 954                         m_selected_content_guess.name = "";
 955                 }
 956         }
 957         // If the selected stack has become empty for some reason, deselect it.
 958         // If the selected stack has become smaller, adjust m_selected_amount.
 959         if(m_selected_item)
 960         {
 961                 bool selection_valid = false;
 962                 if(m_selected_item->isValid())
 963                 {
 964                         Inventory *inv = m_invmgr->getInventory(m_selected_item->inventoryloc);
 965                         if(inv)
 966                         {
 967                                 InventoryList *list = inv->getList(m_selected_item->listname);
 968                                 if(list && (u32) m_selected_item->i < list->getSize())
 969                                 {
 970                                         ItemStack stack = list->getItem(m_selected_item->i);
 971                                         if(m_selected_amount > stack.count)
 972                                                 m_selected_amount = stack.count;
 973                                         if(!stack.empty())
 974                                                 selection_valid = true;
 975                                 }
 976                         }
 977                 }
 978                 if(!selection_valid)
 979                 {
 980                         delete m_selected_item;
 981                         m_selected_item = NULL;
 982                         m_selected_amount = 0;
 983                         m_selected_dragging = false;
 984                 }
 985         }
 986
 987         // If craftresult is nonempty and nothing else is selected, select it now.
 988         if(!m_selected_item)
 989         {
 990                 for(u32 i=0; i<m_inventorylists.size(); i++)
 991                 {
 992                         const ListDrawSpec &s = m_inventorylists[i];
 993                         if(s.listname == "craftpreview")
 994                         {
 995                                 Inventory *inv = m_invmgr->getInventory(s.inventoryloc);
 996                                 InventoryList *list = inv->getList("craftresult");
 997                                 if(list && list->getSize() >= 1 && !list->getItem(0).empty())
 998                                 {
 999                                         m_selected_item = new ItemSpec;
1000                                         m_selected_item->inventoryloc = s.inventoryloc;
1001                                         m_selected_item->listname = "craftresult";
1002                                         m_selected_item->i = 0;
1003                                         m_selected_amount = 0;
1004                                         m_selected_dragging = false;
1005                                         break;
1006                                 }
1007                         }
1008                 }
1009         }
1010
1011         // If craftresult is selected, keep the whole stack selected
1012         if(m_selected_item && m_selected_item->listname == "craftresult")
1013         {
1014                 Inventory *inv = m_invmgr->getInventory(m_selected_item->inventoryloc);
1015                 assert(inv);
1016                 InventoryList *list = inv->getList(m_selected_item->listname);
1017                 assert(list);
1018                 m_selected_amount = list->getItem(m_selected_item->i).count;
1019         }
1020 }
1021
1022 void GUIFormSpecMenu::acceptInput()
1023 {
1024         if(m_text_dst)
1025         {
1026                 std::map<std::string, std::string> fields;
1027                 gui::IGUIElement *e;
1028                 for(u32 i=0; i<m_fields.size(); i++)
1029                 {
1030                         const FieldSpec &s = m_fields[i];
1031                         if(s.send)
1032                         {
1033                                 if(s.is_button)
1034                                 {
1035                                         fields[wide_to_narrow(s.fname.c_str())] = wide_to_narrow(s.flabel.c_str());
1036                                 }
1037                                 else
1038                                 {
1039                                         e = getElementFromId(s.fid);
1040                                         if(e != NULL)
1041                                         {
1042                                                 fields[wide_to_narrow(s.fname.c_str())] = wide_to_narrow(e->getText());
1043                                         }
1044                                 }
1045                         }
1046                 }
1047                 m_text_dst->gotText(fields);
1048         }
1049 }
1050
1051 bool GUIFormSpecMenu::OnEvent(const SEvent& event)
1052 {
1053         if(event.EventType==EET_KEY_INPUT_EVENT)
1054         {
1055                 KeyPress kp(event.KeyInput);
1056                 if (event.KeyInput.PressedDown && (kp == EscapeKey ||
1057                         kp == getKeySetting("keymap_inventory")))
1058                 {
1059                         quitMenu();
1060                         return true;
1061                 }
1062                 if(event.KeyInput.Key==KEY_RETURN && event.KeyInput.PressedDown)
1063                 {
1064                         acceptInput();
1065                         quitMenu();
1066                         return true;
1067                 }
1068         }
1069         if(event.EventType==EET_MOUSE_INPUT_EVENT
1070                         && event.MouseInput.Event != EMIE_MOUSE_MOVED)
1071         {
1072                 // Mouse event other than movement
1073
1074                 // Get selected item and hovered/clicked item (s)
1075
1076                 updateSelectedItem();
1077                 ItemSpec s = getItemAtPos(m_pointer);
1078
1079                 Inventory *inv_selected = NULL;
1080                 Inventory *inv_s = NULL;
1081
1082                 if(m_selected_item)
1083                 {
1084                         inv_selected = m_invmgr->getInventory(m_selected_item->inventoryloc);
1085                         assert(inv_selected);
1086                         assert(inv_selected->getList(m_selected_item->listname) != NULL);
1087                 }
1088
1089                 u32 s_count = 0;
1090
1091                 if(s.isValid())
1092                 do{ // breakable
1093                         inv_s = m_invmgr->getInventory(s.inventoryloc);
1094
1095                         if(!inv_s){
1096                                 errorstream<<"InventoryMenu: The selected inventory location "
1097                                                 <<"\""<<s.inventoryloc.dump()<<"\" doesn't exist"
1098                                                 <<std::endl;
1099                                 s.i = -1;  // make it invalid again
1100                                 break;
1101                         }
1102
1103                         InventoryList *list = inv_s->getList(s.listname);
1104                         if(list == NULL){
1105                                 verbosestream<<"InventoryMenu: The selected inventory list \""
1106                                                 <<s.listname<<"\" does not exist"<<std::endl;
1107                                 s.i = -1;  // make it invalid again
1108                                 break;
1109                         }
1110
1111                         if((u32)s.i >= list->getSize()){
1112                                 infostream<<"InventoryMenu: The selected inventory list \""
1113                                                 <<s.listname<<"\" is too small (i="<<s.i<<", size="
1114                                                 <<list->getSize()<<")"<<std::endl;
1115                                 s.i = -1;  // make it invalid again
1116                                 break;
1117                         }
1118
1119                         s_count = list->getItem(s.i).count;
1120                 }while(0);
1121
1122                 bool identical = (m_selected_item != NULL) && s.isValid() &&
1123                         (inv_selected == inv_s) &&
1124                         (m_selected_item->listname == s.listname) &&
1125                         (m_selected_item->i == s.i);
1126
1127                 // buttons: 0 = left, 1 = right, 2 = middle
1128                 // up/down: 0 = down (press), 1 = up (release), 2 = unknown event
1129                 int button = 0;
1130                 int updown = 2;
1131                 if(event.MouseInput.Event == EMIE_LMOUSE_PRESSED_DOWN)
1132                         { button = 0; updown = 0; }
1133                 else if(event.MouseInput.Event == EMIE_RMOUSE_PRESSED_DOWN)
1134                         { button = 1; updown = 0; }
1135                 else if(event.MouseInput.Event == EMIE_MMOUSE_PRESSED_DOWN)
1136                         { button = 2; updown = 0; }
1137                 else if(event.MouseInput.Event == EMIE_LMOUSE_LEFT_UP)
1138                         { button = 0; updown = 1; }
1139                 else if(event.MouseInput.Event == EMIE_RMOUSE_LEFT_UP)
1140                         { button = 1; updown = 1; }
1141                 else if(event.MouseInput.Event == EMIE_MMOUSE_LEFT_UP)
1142                         { button = 2; updown = 1; }
1143
1144                 // Set this number to a positive value to generate a move action
1145                 // from m_selected_item to s.
1146                 u32 move_amount = 0;
1147
1148                 // Set this number to a positive value to generate a drop action
1149                 // from m_selected_item.
1150                 u32 drop_amount = 0;
1151
1152                 // Set this number to a positive value to generate a craft action at s.
1153                 u32 craft_amount = 0;
1154
1155                 if(updown == 0)
1156                 {
1157                         // Some mouse button has been pressed
1158
1159                         //infostream<<"Mouse button "<<button<<" pressed at p=("
1160                         //      <<p.X<<","<<p.Y<<")"<<std::endl;
1161
1162                         m_selected_dragging = false;
1163
1164                         if(s.isValid() && s.listname == "craftpreview")
1165                         {
1166                                 // Craft preview has been clicked: craft
1167                                 craft_amount = (button == 2 ? 10 : 1);
1168                         }
1169                         else if(m_selected_item == NULL)
1170                         {
1171                                 if(s_count != 0)
1172                                 {
1173                                         // Non-empty stack has been clicked: select it
1174                                         m_selected_item = new ItemSpec(s);
1175
1176                                         if(button == 1)  // right
1177                                                 m_selected_amount = (s_count + 1) / 2;
1178                                         else if(button == 2)  // middle
1179                                                 m_selected_amount = MYMIN(s_count, 10);
1180                                         else  // left
1181                                                 m_selected_amount = s_count;
1182
1183                                         m_selected_dragging = true;
1184                                 }
1185                         }
1186                         else  // m_selected_item != NULL
1187                         {
1188                                 assert(m_selected_amount >= 1);
1189
1190                                 if(s.isValid())
1191                                 {
1192                                         // Clicked a slot: move
1193                                         if(button == 1)  // right
1194                                                 move_amount = 1;
1195                                         else if(button == 2)  // middle
1196                                                 move_amount = MYMIN(m_selected_amount, 10);
1197                                         else  // left
1198                                                 move_amount = m_selected_amount;
1199
1200                                         if(identical)
1201                                         {
1202                                                 if(move_amount >= m_selected_amount)
1203                                                         m_selected_amount = 0;
1204                                                 else
1205                                                         m_selected_amount -= move_amount;
1206                                                 move_amount = 0;
1207                                         }
1208                                 }
1209                                 else if(getAbsoluteClippingRect().isPointInside(m_pointer))
1210                                 {
1211                                         // Clicked somewhere else: deselect
1212                                         m_selected_amount = 0;
1213                                 }
1214                                 else
1215                                 {
1216                                         // Clicked outside of the window: drop
1217                                         if(button == 1)  // right
1218                                                 drop_amount = 1;
1219                                         else if(button == 2)  // middle
1220                                                 drop_amount = MYMIN(m_selected_amount, 10);
1221                                         else  // left
1222                                                 drop_amount = m_selected_amount;
1223                                 }
1224                         }
1225                 }
1226                 else if(updown == 1)
1227                 {
1228                         // Some mouse button has been released
1229
1230                         //infostream<<"Mouse button "<<button<<" released at p=("
1231                         //      <<p.X<<","<<p.Y<<")"<<std::endl;
1232
1233                         if(m_selected_item != NULL && m_selected_dragging && s.isValid())
1234                         {
1235                                 if(!identical)
1236                                 {
1237                                         // Dragged to different slot: move all selected
1238                                         move_amount = m_selected_amount;
1239                                 }
1240                         }
1241                         else if(m_selected_item != NULL && m_selected_dragging &&
1242                                 !(getAbsoluteClippingRect().isPointInside(m_pointer)))
1243                         {
1244                                 // Dragged outside of window: drop all selected
1245                                 drop_amount = m_selected_amount;
1246                         }
1247
1248                         m_selected_dragging = false;
1249                 }
1250
1251                 // Possibly send inventory action to server
1252                 if(move_amount > 0)
1253                 {
1254                         // Send IACTION_MOVE
1255
1256                         assert(m_selected_item && m_selected_item->isValid());
1257                         assert(s.isValid());
1258
1259                         assert(inv_selected && inv_s);
1260                         InventoryList *list_from = inv_selected->getList(m_selected_item->listname);
1261                         InventoryList *list_to = inv_s->getList(s.listname);
1262                         assert(list_from && list_to);
1263                         ItemStack stack_from = list_from->getItem(m_selected_item->i);
1264                         ItemStack stack_to = list_to->getItem(s.i);
1265
1266                         // Check how many items can be moved
1267                         move_amount = stack_from.count = MYMIN(move_amount, stack_from.count);
1268                         ItemStack leftover = stack_to.addItem(stack_from, m_gamedef->idef());
1269                         // If source stack cannot be added to destination stack at all,
1270                         // they are swapped
1271                         if(leftover.count == stack_from.count && leftover.name == stack_from.name)
1272                         {
1273                                 m_selected_amount = stack_to.count;
1274                                 // In case the server doesn't directly swap them but instead
1275                                 // moves stack_to somewhere else, set this
1276                                 m_selected_content_guess = stack_to;
1277                                 m_selected_content_guess_inventory = s.inventoryloc;
1278                         }
1279                         // Source stack goes fully into destination stack
1280                         else if(leftover.empty())
1281                         {
1282                                 m_selected_amount -= move_amount;
1283                                 m_selected_content_guess = ItemStack(); // Clear
1284                         }
1285                         // Source stack goes partly into destination stack
1286                         else
1287                         {
1288                                 move_amount -= leftover.count;
1289                                 m_selected_amount -= move_amount;
1290                                 m_selected_content_guess = ItemStack(); // Clear
1291                         }
1292
1293                         infostream<<"Handing IACTION_MOVE to manager"<<std::endl;
1294                         IMoveAction *a = new IMoveAction();
1295                         a->count = move_amount;
1296                         a->from_inv = m_selected_item->inventoryloc;
1297                         a->from_list = m_selected_item->listname;
1298                         a->from_i = m_selected_item->i;
1299                         a->to_inv = s.inventoryloc;
1300                         a->to_list = s.listname;
1301                         a->to_i = s.i;
1302                         m_invmgr->inventoryAction(a);
1303                 }
1304                 else if(drop_amount > 0)
1305                 {
1306                         m_selected_content_guess = ItemStack(); // Clear
1307
1308                         // Send IACTION_DROP
1309
1310                         assert(m_selected_item && m_selected_item->isValid());
1311                         assert(inv_selected);
1312                         InventoryList *list_from = inv_selected->getList(m_selected_item->listname);
1313                         assert(list_from);
1314                         ItemStack stack_from = list_from->getItem(m_selected_item->i);
1315
1316                         // Check how many items can be dropped
1317                         drop_amount = stack_from.count = MYMIN(drop_amount, stack_from.count);
1318                         assert(drop_amount > 0 && drop_amount <= m_selected_amount);
1319                         m_selected_amount -= drop_amount;
1320
1321                         infostream<<"Handing IACTION_DROP to manager"<<std::endl;
1322                         IDropAction *a = new IDropAction();
1323                         a->count = drop_amount;
1324                         a->from_inv = m_selected_item->inventoryloc;
1325                         a->from_list = m_selected_item->listname;
1326                         a->from_i = m_selected_item->i;
1327                         m_invmgr->inventoryAction(a);
1328                 }
1329                 else if(craft_amount > 0)
1330                 {
1331                         m_selected_content_guess = ItemStack(); // Clear
1332
1333                         // Send IACTION_CRAFT
1334
1335                         assert(s.isValid());
1336                         assert(inv_s);
1337
1338                         infostream<<"Handing IACTION_CRAFT to manager"<<std::endl;
1339                         ICraftAction *a = new ICraftAction();
1340                         a->count = craft_amount;
1341                         a->craft_inv = s.inventoryloc;
1342                         m_invmgr->inventoryAction(a);
1343                 }
1344
1345                 // If m_selected_amount has been decreased to zero, deselect
1346                 if(m_selected_amount == 0)
1347                 {
1348                         delete m_selected_item;
1349                         m_selected_item = NULL;
1350                         m_selected_amount = 0;
1351                         m_selected_dragging = false;
1352                         m_selected_content_guess = ItemStack();
1353                 }
1354         }
1355         if(event.EventType==EET_GUI_EVENT)
1356         {
1357                 if(event.GUIEvent.EventType==gui::EGET_ELEMENT_FOCUS_LOST
1358                                 && isVisible())
1359                 {
1360                         if(!canTakeFocus(event.GUIEvent.Element))
1361                         {
1362                                 infostream<<"GUIFormSpecMenu: Not allowing focus change."
1363                                                 <<std::endl;
1364                                 // Returning true disables focus change
1365                                 return true;
1366                         }
1367                 }
1368                 if(event.GUIEvent.EventType==gui::EGET_BUTTON_CLICKED)
1369                 {
1370                         switch(event.GUIEvent.Caller->getID())
1371                         {
1372                         case 257:
1373                                 acceptInput();
1374                                 quitMenu();
1375                                 // quitMenu deallocates menu
1376                                 return true;
1377                         }
1378                         // find the element that was clicked
1379                         for(u32 i=0; i<m_fields.size(); i++)
1380                         {
1381                                 FieldSpec &s = m_fields[i];
1382                                 // if its a button, set the send field so
1383                                 // lua knows which button was pressed
1384                                 if (s.is_button && s.fid == event.GUIEvent.Caller->getID())
1385                                 {
1386                                         s.send = true;
1387                                         acceptInput();
1388                                         if(s.is_exit){
1389                                                 quitMenu();
1390                                                 return true;
1391                                         }else{
1392                                                 s.send = false;
1393                                                 // Restore focus to the full form
1394                                                 Environment->setFocus(this);
1395                                                 return true;
1396                                         }
1397                                 }
1398                         }
1399                 }
1400                 if(event.GUIEvent.EventType==gui::EGET_EDITBOX_ENTER)
1401                 {
1402                         if(event.GUIEvent.Caller->getID() > 257)
1403                         {
1404                                 acceptInput();
1405                                 quitMenu();
1406                                 // quitMenu deallocates menu
1407                                 return true;
1408                         }
1409                 }
1410         }
1411
1412         return Parent ? Parent->OnEvent(event) : false;
1413 }
1414