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