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