src/guiInventoryMenu.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 General Public License as published by
   7 the Free Software Foundation; either version 2 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 General Public License for more details.
  14
  15 You should have received a copy of the GNU 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 "guiInventoryMenu.h"
  22 #include "constants.h"
  23 #include "keycode.h"
  24 #include "strfnd.h"
  25
  26 void drawInventoryItem(video::IVideoDriver *driver,
  27                 gui::IGUIFont *font,
  28                 InventoryItem *item, core::rect<s32> rect,
  29                 const core::rect<s32> *clip)
  30 {
  31         if(item == NULL)
  32                 return;
  33
  34         video::ITexture *texture = NULL;
  35         texture = item->getImage();
  36
  37         if(texture != NULL)
  38         {
  39                 const video::SColor color(255,255,255,255);
  40                 const video::SColor colors[] = {color,color,color,color};
  41                 driver->draw2DImage(texture, rect,
  42                         core::rect<s32>(core::position2d<s32>(0,0),
  43                         core::dimension2di(texture->getOriginalSize())),
  44                         clip, colors, false);
  45         }
  46         else
  47         {
  48                 video::SColor bgcolor(255,50,50,128);
  49                 driver->draw2DRectangle(bgcolor, rect, clip);
  50         }
  51
  52         if(font != NULL)
  53         {
  54                 std::string text = item->getText();
  55                 if(font && text != "")
  56                 {
  57                         v2u32 dim = font->getDimension(narrow_to_wide(text).c_str());
  58                         v2s32 sdim(dim.X,dim.Y);
  59
  60                         core::rect<s32> rect2(
  61                                 /*rect.UpperLeftCorner,
  62                                 core::dimension2d<u32>(rect.getWidth(), 15)*/
  63                                 rect.LowerRightCorner - sdim,
  64                                 sdim
  65                         );
  66
  67                         video::SColor bgcolor(128,0,0,0);
  68                         driver->draw2DRectangle(bgcolor, rect2, clip);
  69
  70                         font->draw(text.c_str(), rect2,
  71                                         video::SColor(255,255,255,255), false, false,
  72                                         clip);
  73                 }
  74         }
  75 }
  76
  77 /*
  78         GUIInventoryMenu
  79 */
  80
  81 GUIInventoryMenu::GUIInventoryMenu(gui::IGUIEnvironment* env,
  82                 gui::IGUIElement* parent, s32 id,
  83                 IMenuManager *menumgr,
  84                 v2s16 menu_size,
  85                 InventoryContext *c,
  86                 InventoryManager *invmgr
  87                 ):
  88         GUIModalMenu(env, parent, id, menumgr),
  89         m_menu_size(menu_size),
  90         m_c(c),
  91         m_invmgr(invmgr)
  92 {
  93         m_selected_item = NULL;
  94 }
  95
  96 GUIInventoryMenu::~GUIInventoryMenu()
  97 {
  98         removeChildren();
  99
 100         if(m_selected_item)
 101                 delete m_selected_item;
 102 }
 103
 104 void GUIInventoryMenu::removeChildren()
 105 {
 106         const core::list<gui::IGUIElement*> &children = getChildren();
 107         core::list<gui::IGUIElement*> children_copy;
 108         for(core::list<gui::IGUIElement*>::ConstIterator
 109                         i = children.begin(); i != children.end(); i++)
 110         {
 111                 children_copy.push_back(*i);
 112         }
 113         for(core::list<gui::IGUIElement*>::Iterator
 114                         i = children_copy.begin();
 115                         i != children_copy.end(); i++)
 116         {
 117                 (*i)->remove();
 118         }
 119         /*{
 120                 gui::IGUIElement *e = getElementFromId(256);
 121                 if(e != NULL)
 122                         e->remove();
 123         }*/
 124 }
 125
 126 void GUIInventoryMenu::regenerateGui(v2u32 screensize)
 127 {
 128         // Remove children
 129         removeChildren();
 130
 131         /*padding = v2s32(24,24);
 132         spacing = v2s32(60,56);
 133         imgsize = v2s32(48,48);*/
 134
 135         padding = v2s32(screensize.Y/40, screensize.Y/40);
 136         spacing = v2s32(screensize.Y/12, screensize.Y/13);
 137         imgsize = v2s32(screensize.Y/15, screensize.Y/15);
 138
 139         s32 helptext_h = 15;
 140
 141         v2s32 size(
 142                 padding.X*2+spacing.X*(m_menu_size.X-1)+imgsize.X,
 143                 padding.Y*2+spacing.Y*(m_menu_size.Y-1)+imgsize.Y + helptext_h
 144         );
 145
 146         core::rect<s32> rect(
 147                         screensize.X/2 - size.X/2,
 148                         screensize.Y/2 - size.Y/2,
 149                         screensize.X/2 + size.X/2,
 150                         screensize.Y/2 + size.Y/2
 151         );
 152
 153         DesiredRect = rect;
 154         recalculateAbsolutePosition(false);
 155
 156         v2s32 basepos = getBasePos();
 157
 158         m_draw_spec.clear();
 159         for(u16 i=0; i<m_init_draw_spec.size(); i++)
 160         {
 161                 DrawSpec &s = m_init_draw_spec[i];
 162                 if(s.type == "list")
 163                 {
 164                         m_draw_spec.push_back(ListDrawSpec(s.name, s.subname,
 165                                         basepos + v2s32(spacing.X*s.pos.X, spacing.Y*s.pos.Y),
 166                                         s.geom));
 167                 }
 168         }
 169
 170         /*
 171         m_draw_spec.clear();
 172         m_draw_spec.push_back(ListDrawSpec("main",
 173                         basepos + v2s32(spacing.X*0, spacing.Y*3), v2s32(8, 4)));
 174         m_draw_spec.push_back(ListDrawSpec("craft",
 175                         basepos + v2s32(spacing.X*3, spacing.Y*0), v2s32(3, 3)));
 176         m_draw_spec.push_back(ListDrawSpec("craftresult",
 177                         basepos + v2s32(spacing.X*7, spacing.Y*1), v2s32(1, 1)));
 178         */
 179
 180         // Add children
 181         {
 182                 core::rect<s32> rect(0, 0, size.X-padding.X*2, helptext_h);
 183                 rect = rect + v2s32(size.X/2 - rect.getWidth()/2,
 184                                 size.Y-rect.getHeight()-15);
 185                 const wchar_t *text =
 186                 L"Left click: Move all items, Right click: Move single item";
 187                 Environment->addStaticText(text, rect, false, true, this, 256);
 188         }
 189 }
 190
 191 GUIInventoryMenu::ItemSpec GUIInventoryMenu::getItemAtPos(v2s32 p) const
 192 {
 193         core::rect<s32> imgrect(0,0,imgsize.X,imgsize.Y);
 194
 195         for(u32 i=0; i<m_draw_spec.size(); i++)
 196         {
 197                 const ListDrawSpec &s = m_draw_spec[i];
 198
 199                 for(s32 i=0; i<s.geom.X*s.geom.Y; i++)
 200                 {
 201                         s32 x = (i%s.geom.X) * spacing.X;
 202                         s32 y = (i/s.geom.X) * spacing.Y;
 203                         v2s32 p0(x,y);
 204                         core::rect<s32> rect = imgrect + s.pos + p0;
 205                         if(rect.isPointInside(p))
 206                         {
 207                                 return ItemSpec(s.inventoryname, s.listname, i);
 208                         }
 209                 }
 210         }
 211
 212         return ItemSpec("", "", -1);
 213 }
 214
 215 void GUIInventoryMenu::drawList(const ListDrawSpec &s)
 216 {
 217         video::IVideoDriver* driver = Environment->getVideoDriver();
 218
 219         // Get font
 220         gui::IGUIFont *font = NULL;
 221         gui::IGUISkin* skin = Environment->getSkin();
 222         if (skin)
 223                 font = skin->getFont();
 224
 225         Inventory *inv = m_invmgr->getInventory(m_c, s.inventoryname);
 226         assert(inv);
 227         InventoryList *ilist = inv->getList(s.listname);
 228
 229         core::rect<s32> imgrect(0,0,imgsize.X,imgsize.Y);
 230
 231         for(s32 i=0; i<s.geom.X*s.geom.Y; i++)
 232         {
 233                 s32 x = (i%s.geom.X) * spacing.X;
 234                 s32 y = (i/s.geom.X) * spacing.Y;
 235                 v2s32 p(x,y);
 236                 core::rect<s32> rect = imgrect + s.pos + p;
 237                 InventoryItem *item = NULL;
 238                 if(ilist)
 239                         item = ilist->getItem(i);
 240
 241                 if(m_selected_item != NULL && m_selected_item->listname == s.listname
 242                                 && m_selected_item->i == i)
 243                 {
 244                         driver->draw2DRectangle(video::SColor(255,255,0,0),
 245                                         core::rect<s32>(rect.UpperLeftCorner - v2s32(2,2),
 246                                                         rect.LowerRightCorner + v2s32(2,2)),
 247                                         &AbsoluteClippingRect);
 248                 }
 249
 250                 if(item)
 251                 {
 252                         drawInventoryItem(driver, font, item,
 253                                         rect, &AbsoluteClippingRect);
 254                 }
 255                 else
 256                 {
 257                         video::SColor bgcolor(255,128,128,128);
 258                         driver->draw2DRectangle(bgcolor, rect, &AbsoluteClippingRect);
 259                 }
 260         }
 261 }
 262
 263 void GUIInventoryMenu::drawMenu()
 264 {
 265         gui::IGUISkin* skin = Environment->getSkin();
 266         if (!skin)
 267                 return;
 268         video::IVideoDriver* driver = Environment->getVideoDriver();
 269
 270         video::SColor bgcolor(140,0,0,0);
 271         driver->draw2DRectangle(bgcolor, AbsoluteRect, &AbsoluteClippingRect);
 272
 273         /*
 274                 Draw items
 275         */
 276
 277         for(u32 i=0; i<m_draw_spec.size(); i++)
 278         {
 279                 ListDrawSpec &s = m_draw_spec[i];
 280                 drawList(s);
 281         }
 282
 283         /*
 284                 Call base class
 285         */
 286         gui::IGUIElement::draw();
 287 }
 288
 289 bool GUIInventoryMenu::OnEvent(const SEvent& event)
 290 {
 291         if(event.EventType==EET_KEY_INPUT_EVENT)
 292         {
 293                 KeyPress kp(event.KeyInput);
 294                 if (event.KeyInput.PressedDown && (kp == EscapeKey ||
 295                         kp == getKeySetting("keymap_inventory")))
 296                 {
 297                         quitMenu();
 298                         return true;
 299                 }
 300         }
 301         if(event.EventType==EET_MOUSE_INPUT_EVENT)
 302         {
 303                 if(event.MouseInput.Event == EMIE_LMOUSE_PRESSED_DOWN
 304                                 || event.MouseInput.Event == EMIE_RMOUSE_PRESSED_DOWN)
 305                 {
 306                         bool right = (event.MouseInput.Event == EMIE_RMOUSE_PRESSED_DOWN);
 307                         v2s32 p(event.MouseInput.X, event.MouseInput.Y);
 308                         //dstream<<"Mouse down at p=("<<p.X<<","<<p.Y<<")"<<std::endl;
 309                         ItemSpec s = getItemAtPos(p);
 310                         if(s.isValid())
 311                         {
 312                                 dstream<<"Mouse down on "<<s.inventoryname
 313                                                 <<"/"<<s.listname<<" "<<s.i<<std::endl;
 314                                 if(m_selected_item)
 315                                 {
 316                                         Inventory *inv_from = m_invmgr->getInventory(m_c,
 317                                                         m_selected_item->inventoryname);
 318                                         Inventory *inv_to = m_invmgr->getInventory(m_c,
 319                                                         s.inventoryname);
 320                                         assert(inv_from);
 321                                         assert(inv_to);
 322                                         InventoryList *list_from =
 323                                                         inv_from->getList(m_selected_item->listname);
 324                                         InventoryList *list_to =
 325                                                         inv_to->getList(s.listname);
 326                                         if(list_from == NULL)
 327                                                 dstream<<"from list doesn't exist"<<std::endl;
 328                                         if(list_to == NULL)
 329                                                 dstream<<"to list doesn't exist"<<std::endl;
 330                                         // Indicates whether source slot completely empties
 331                                         bool source_empties = false;
 332                                         if(list_from && list_to
 333                                                         && list_from->getItem(m_selected_item->i) != NULL)
 334                                         {
 335                                                 dstream<<"Handing IACTION_MOVE to manager"<<std::endl;
 336                                                 IMoveAction *a = new IMoveAction();
 337                                                 a->count = right ? 1 : 0;
 338                                                 a->from_inv = m_selected_item->inventoryname;
 339                                                 a->from_list = m_selected_item->listname;
 340                                                 a->from_i = m_selected_item->i;
 341                                                 a->to_inv = s.inventoryname;
 342                                                 a->to_list = s.listname;
 343                                                 a->to_i = s.i;
 344                                                 //ispec.actions->push_back(a);
 345                                                 m_invmgr->inventoryAction(a);
 346
 347                                                 if(list_from->getItem(m_selected_item->i)->getCount()==1)
 348                                                         source_empties = true;
 349                                         }
 350                                         // Remove selection if target was left-clicked or source
 351                                         // slot was emptied
 352                                         if(right == false || source_empties)
 353                                         {
 354                                                 delete m_selected_item;
 355                                                 m_selected_item = NULL;
 356                                         }
 357                                 }
 358                                 else
 359                                 {
 360                                         /*
 361                                                 Select if non-NULL
 362                                         */
 363                                         Inventory *inv = m_invmgr->getInventory(m_c,
 364                                                         s.inventoryname);
 365                                         assert(inv);
 366                                         InventoryList *list = inv->getList(s.listname);
 367                                         if(list->getItem(s.i) != NULL)
 368                                         {
 369                                                 m_selected_item = new ItemSpec(s);
 370                                         }
 371                                 }
 372                         }
 373                         else
 374                         {
 375                                 if(m_selected_item)
 376                                 {
 377                                         delete m_selected_item;
 378                                         m_selected_item = NULL;
 379                                 }
 380                         }
 381                 }
 382         }
 383         if(event.EventType==EET_GUI_EVENT)
 384         {
 385                 if(event.GUIEvent.EventType==gui::EGET_ELEMENT_FOCUS_LOST
 386                                 && isVisible())
 387                 {
 388                         if(!canTakeFocus(event.GUIEvent.Element))
 389                         {
 390                                 dstream<<"GUIInventoryMenu: Not allowing focus change."
 391                                                 <<std::endl;
 392                                 // Returning true disables focus change
 393                                 return true;
 394                         }
 395                 }
 396                 if(event.GUIEvent.EventType==gui::EGET_BUTTON_CLICKED)
 397                 {
 398                         /*switch(event.GUIEvent.Caller->getID())
 399                         {
 400                         case 256: // continue
 401                                 setVisible(false);
 402                                 break;
 403                         case 257: // exit
 404                                 dev->closeDevice();
 405                                 break;
 406                         }*/
 407                 }
 408         }
 409
 410         return Parent ? Parent->OnEvent(event) : false;
 411 }
 412
 413 /*
 414         Here is an example traditional set-up sequence for a DrawSpec list:
 415
 416         std::string furnace_inv_id = "nodemetadata:0,1,2";
 417         core::array<GUIInventoryMenu::DrawSpec> draw_spec;
 418         draw_spec.push_back(GUIInventoryMenu::DrawSpec(
 419                         "list", furnace_inv_id, "fuel",
 420                         v2s32(2, 3), v2s32(1, 1)));
 421         draw_spec.push_back(GUIInventoryMenu::DrawSpec(
 422                         "list", furnace_inv_id, "src",
 423                         v2s32(2, 1), v2s32(1, 1)));
 424         draw_spec.push_back(GUIInventoryMenu::DrawSpec(
 425                         "list", furnace_inv_id, "dst",
 426                         v2s32(5, 1), v2s32(2, 2)));
 427         draw_spec.push_back(GUIInventoryMenu::DrawSpec(
 428                         "list", "current_player", "main",
 429                         v2s32(0, 5), v2s32(8, 4)));
 430         setDrawSpec(draw_spec);
 431
 432         Here is the string for creating the same DrawSpec list (a single line,
 433         spread to multiple lines here):
 434
 435         GUIInventoryMenu::makeDrawSpecArrayFromString(
 436                         draw_spec,
 437                         "nodemetadata:0,1,2",
 438                         "invsize[8,9;]"
 439                         "list[current_name;fuel;2,3;1,1;]"
 440                         "list[current_name;src;2,1;1,1;]"
 441                         "list[current_name;dst;5,1;2,2;]"
 442                         "list[current_player;main;0,5;8,4;]");
 443
 444         Returns inventory menu size defined by invsize[].
 445 */
 446 v2s16 GUIInventoryMenu::makeDrawSpecArrayFromString(
 447                 core::array<GUIInventoryMenu::DrawSpec> &draw_spec,
 448                 const std::string &data,
 449                 const std::string &current_name)
 450 {
 451         v2s16 invsize(8,9);
 452         Strfnd f(data);
 453         while(f.atend() == false)
 454         {
 455                 std::string type = trim(f.next("["));
 456                 //dstream<<"type="<<type<<std::endl;
 457                 if(type == "list")
 458                 {
 459                         std::string name = f.next(";");
 460                         if(name == "current_name")
 461                                 name = current_name;
 462                         std::string subname = f.next(";");
 463                         s32 pos_x = stoi(f.next(","));
 464                         s32 pos_y = stoi(f.next(";"));
 465                         s32 geom_x = stoi(f.next(","));
 466                         s32 geom_y = stoi(f.next(";"));
 467                         dstream<<"list name="<<name<<", subname="<<subname
 468                                         <<", pos=("<<pos_x<<","<<pos_y<<")"
 469                                         <<", geom=("<<geom_x<<","<<geom_y<<")"
 470                                         <<std::endl;
 471                         draw_spec.push_back(GUIInventoryMenu::DrawSpec(
 472                                         type, name, subname,
 473                                         v2s32(pos_x,pos_y),v2s32(geom_x,geom_y)));
 474                         f.next("]");
 475                 }
 476                 else if(type == "invsize")
 477                 {
 478                         invsize.X = stoi(f.next(","));
 479                         invsize.Y = stoi(f.next(";"));
 480                         dstream<<"invsize ("<<invsize.X<<","<<invsize.Y<<")"<<std::endl;
 481                         f.next("]");
 482                 }
 483                 else
 484                 {
 485                         // Ignore others
 486                         std::string ts = f.next("]");
 487                         dstream<<"Unknown DrawSpec: type="<<type<<", data=\""<<ts<<"\""
 488                                         <<std::endl;
 489                 }
 490         }
 491
 492         return invsize;
 493 }
 494