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
  24 void drawInventoryItem(video::IVideoDriver *driver,
  25                 gui::IGUIFont *font,
  26                 InventoryItem *item, core::rect<s32> rect,
  27                 const core::rect<s32> *clip)
  28 {
  29         if(item == NULL)
  30                 return;
  31
  32         video::ITexture *texture = NULL;
  33         texture = item->getImage();
  34
  35         if(texture != NULL)
  36         {
  37                 const video::SColor color(255,255,255,255);
  38                 const video::SColor colors[] = {color,color,color,color};
  39                 driver->draw2DImage(texture, rect,
  40                         core::rect<s32>(core::position2d<s32>(0,0),
  41                         core::dimension2di(texture->getOriginalSize())),
  42                         clip, colors, false);
  43         }
  44         else
  45         {
  46                 video::SColor bgcolor(255,50,50,128);
  47                 driver->draw2DRectangle(bgcolor, rect, clip);
  48         }
  49
  50         if(font != NULL)
  51         {
  52                 std::string text = item->getText();
  53                 if(font && text != "")
  54                 {
  55                         v2u32 dim = font->getDimension(narrow_to_wide(text).c_str());
  56                         v2s32 sdim(dim.X,dim.Y);
  57
  58                         core::rect<s32> rect2(
  59                                 /*rect.UpperLeftCorner,
  60                                 core::dimension2d<u32>(rect.getWidth(), 15)*/
  61                                 rect.LowerRightCorner - sdim,
  62                                 sdim
  63                         );
  64
  65                         video::SColor bgcolor(128,0,0,0);
  66                         driver->draw2DRectangle(bgcolor, rect2, clip);
  67
  68                         font->draw(text.c_str(), rect2,
  69                                         video::SColor(255,255,255,255), false, false,
  70                                         clip);
  71                 }
  72         }
  73 }
  74
  75 /*
  76         GUIInventoryMenu
  77 */
  78
  79 GUIInventoryMenu::GUIInventoryMenu(gui::IGUIEnvironment* env,
  80                 gui::IGUIElement* parent, s32 id,
  81                 Inventory *inventory,
  82                 Queue<InventoryAction*> *actions,
  83                 IMenuManager *menumgr):
  84         GUIModalMenu(env, parent, id, menumgr)
  85 {
  86         m_inventory = inventory;
  87         m_selected_item = NULL;
  88         m_actions = actions;
  89
  90         /*m_selected_item = new ItemSpec;
  91         m_selected_item->listname = "main";
  92         m_selected_item->i = 3;*/
  93 }
  94
  95 GUIInventoryMenu::~GUIInventoryMenu()
  96 {
  97         removeChildren();
  98
  99         if(m_selected_item)
 100                 delete m_selected_item;
 101 }
 102
 103 void GUIInventoryMenu::removeChildren()
 104 {
 105         {
 106                 gui::IGUIElement *e = getElementFromId(256);
 107                 if(e != NULL)
 108                         e->remove();
 109         }
 110 }
 111
 112 void GUIInventoryMenu::regenerateGui(v2u32 screensize)
 113 {
 114         // Remove children
 115         removeChildren();
 116
 117         padding = v2s32(24,24);
 118         spacing = v2s32(60,56);
 119         imgsize = v2s32(48,48);
 120
 121         s32 helptext_h = 15;
 122
 123         v2s32 size(
 124                 padding.X*2+spacing.X*(8-1)+imgsize.X,
 125                 padding.Y*2+spacing.Y*(7-1)+imgsize.Y + helptext_h
 126         );
 127
 128         core::rect<s32> rect(
 129                         screensize.X/2 - size.X/2,
 130                         screensize.Y/2 - size.Y/2,
 131                         screensize.X/2 + size.X/2,
 132                         screensize.Y/2 + size.Y/2
 133         );
 134
 135         DesiredRect = rect;
 136         recalculateAbsolutePosition(false);
 137
 138         v2s32 basepos = getBasePos();
 139
 140         m_draw_positions.clear();
 141         m_draw_positions.push_back(ListDrawSpec("main",
 142                         basepos + v2s32(spacing.X*0, spacing.Y*3), v2s32(8, 4)));
 143         m_draw_positions.push_back(ListDrawSpec("craft",
 144                         basepos + v2s32(spacing.X*3, spacing.Y*0), v2s32(3, 3)));
 145         m_draw_positions.push_back(ListDrawSpec("craftresult",
 146                         basepos + v2s32(spacing.X*7, spacing.Y*1), v2s32(1, 1)));
 147
 148         // Add children
 149         {
 150                 core::rect<s32> rect(0, 0, size.X-padding.X*2, helptext_h);
 151                 rect = rect + v2s32(size.X/2 - rect.getWidth()/2,
 152                                 size.Y-rect.getHeight()-15);
 153                 const wchar_t *text =
 154                 L"Left click: Move all items, Right click: Move single item";
 155                 Environment->addStaticText(text, rect, false, true, this, 256);
 156         }
 157 }
 158
 159 GUIInventoryMenu::ItemSpec GUIInventoryMenu::getItemAtPos(v2s32 p) const
 160 {
 161         core::rect<s32> imgrect(0,0,imgsize.X,imgsize.Y);
 162
 163         for(u32 i=0; i<m_draw_positions.size(); i++)
 164         {
 165                 const ListDrawSpec &s = m_draw_positions[i];
 166
 167                 for(s32 i=0; i<s.geom.X*s.geom.Y; i++)
 168                 {
 169                         s32 x = (i%s.geom.X) * spacing.X;
 170                         s32 y = (i/s.geom.X) * spacing.Y;
 171                         v2s32 p0(x,y);
 172                         core::rect<s32> rect = imgrect + s.pos + p0;
 173                         if(rect.isPointInside(p))
 174                         {
 175                                 return ItemSpec(s.listname, i);
 176                         }
 177                 }
 178         }
 179
 180         return ItemSpec("", -1);
 181 }
 182
 183 //void GUIInventoryMenu::drawList(const std::string &name, v2s32 pos, v2s32 geom)
 184 void GUIInventoryMenu::drawList(const ListDrawSpec &s)
 185 {
 186         video::IVideoDriver* driver = Environment->getVideoDriver();
 187
 188         // Get font
 189         gui::IGUIFont *font = NULL;
 190         gui::IGUISkin* skin = Environment->getSkin();
 191         if (skin)
 192                 font = skin->getFont();
 193
 194         InventoryList *ilist = m_inventory->getList(s.listname);
 195
 196         core::rect<s32> imgrect(0,0,imgsize.X,imgsize.Y);
 197
 198         for(s32 i=0; i<s.geom.X*s.geom.Y; i++)
 199         {
 200                 s32 x = (i%s.geom.X) * spacing.X;
 201                 s32 y = (i/s.geom.X) * spacing.Y;
 202                 v2s32 p(x,y);
 203                 core::rect<s32> rect = imgrect + s.pos + p;
 204                 InventoryItem *item = NULL;
 205                 if(ilist)
 206                         item = ilist->getItem(i);
 207
 208                 if(m_selected_item != NULL && m_selected_item->listname == s.listname
 209                                 && m_selected_item->i == i)
 210                 {
 211                         driver->draw2DRectangle(video::SColor(255,255,0,0),
 212                                         core::rect<s32>(rect.UpperLeftCorner - v2s32(2,2),
 213                                                         rect.LowerRightCorner + v2s32(2,2)),
 214                                         &AbsoluteClippingRect);
 215                 }
 216
 217                 if(item)
 218                 {
 219                         drawInventoryItem(driver, font, item,
 220                                         rect, &AbsoluteClippingRect);
 221                 }
 222                 else
 223                 {
 224                         video::SColor bgcolor(255,128,128,128);
 225                         driver->draw2DRectangle(bgcolor, rect, &AbsoluteClippingRect);
 226                 }
 227         }
 228 }
 229
 230 void GUIInventoryMenu::drawMenu()
 231 {
 232         gui::IGUISkin* skin = Environment->getSkin();
 233         if (!skin)
 234                 return;
 235         video::IVideoDriver* driver = Environment->getVideoDriver();
 236
 237         video::SColor bgcolor(140,0,0,0);
 238         driver->draw2DRectangle(bgcolor, AbsoluteRect, &AbsoluteClippingRect);
 239
 240         /*
 241                 Draw items
 242         */
 243
 244         for(u32 i=0; i<m_draw_positions.size(); i++)
 245         {
 246                 ListDrawSpec &s = m_draw_positions[i];
 247                 drawList(s);
 248         }
 249
 250         /*
 251                 Call base class
 252         */
 253         gui::IGUIElement::draw();
 254 }
 255
 256 bool GUIInventoryMenu::OnEvent(const SEvent& event)
 257 {
 258         if(event.EventType==EET_KEY_INPUT_EVENT)
 259         {
 260                 if(event.KeyInput.Key==KEY_ESCAPE && event.KeyInput.PressedDown)
 261                 {
 262                         quitMenu();
 263                         return true;
 264                 }
 265                 if(event.KeyInput.Key==KEY_KEY_I && event.KeyInput.PressedDown)
 266                 {
 267                         quitMenu();
 268                         return true;
 269                 }
 270         }
 271         if(event.EventType==EET_MOUSE_INPUT_EVENT)
 272         {
 273                 if(event.MouseInput.Event == EMIE_LMOUSE_PRESSED_DOWN
 274                                 || event.MouseInput.Event == EMIE_RMOUSE_PRESSED_DOWN)
 275                 {
 276                         bool right = (event.MouseInput.Event == EMIE_RMOUSE_PRESSED_DOWN);
 277                         v2s32 p(event.MouseInput.X, event.MouseInput.Y);
 278                         //dstream<<"Mouse down at p=("<<p.X<<","<<p.Y<<")"<<std::endl;
 279                         ItemSpec s = getItemAtPos(p);
 280                         if(s.isValid())
 281                         {
 282                                 //dstream<<"Mouse down on "<<s.listname<<" "<<s.i<<std::endl;
 283                                 if(m_selected_item)
 284                                 {
 285                                         InventoryList *list_from =
 286                                                         m_inventory->getList(m_selected_item->listname);
 287                                         InventoryList *list_to =
 288                                                         m_inventory->getList(s.listname);
 289                                         // Indicates whether source slot completely empties
 290                                         bool source_empties = false;
 291                                         if(list_from && list_to
 292                                                         && list_from->getItem(m_selected_item->i) != NULL)
 293                                         {
 294                                                 dstream<<"Queueing IACTION_MOVE"<<std::endl;
 295                                                 IMoveAction *a = new IMoveAction();
 296                                                 a->count = right ? 1 : 0;
 297                                                 a->from_name = m_selected_item->listname;
 298                                                 a->from_i = m_selected_item->i;
 299                                                 a->to_name = s.listname;
 300                                                 a->to_i = s.i;
 301                                                 m_actions->push_back(a);
 302
 303                                                 if(list_from->getItem(m_selected_item->i)->getCount()==1)
 304                                                         source_empties = true;
 305                                         }
 306                                         // Remove selection if target was left-clicked or source
 307                                         // slot was emptied
 308                                         if(right == false || source_empties)
 309                                         {
 310                                                 delete m_selected_item;
 311                                                 m_selected_item = NULL;
 312                                         }
 313                                 }
 314                                 else
 315                                 {
 316                                         /*
 317                                                 Select if non-NULL
 318                                         */
 319                                         InventoryList *list = m_inventory->getList(s.listname);
 320                                         if(list->getItem(s.i) != NULL)
 321                                         {
 322                                                 m_selected_item = new ItemSpec(s);
 323                                         }
 324                                 }
 325                         }
 326                         else
 327                         {
 328                                 if(m_selected_item)
 329                                 {
 330                                         delete m_selected_item;
 331                                         m_selected_item = NULL;
 332                                 }
 333                         }
 334                 }
 335         }
 336         if(event.EventType==EET_GUI_EVENT)
 337         {
 338                 if(event.GUIEvent.EventType==gui::EGET_ELEMENT_FOCUS_LOST
 339                                 && isVisible())
 340                 {
 341                         if(!canTakeFocus(event.GUIEvent.Element))
 342                         {
 343                                 dstream<<"GUIInventoryMenu: Not allowing focus change."
 344                                                 <<std::endl;
 345                                 // Returning true disables focus change
 346                                 return true;
 347                         }
 348                 }
 349                 if(event.GUIEvent.EventType==gui::EGET_BUTTON_CLICKED)
 350                 {
 351                         /*switch(event.GUIEvent.Caller->getID())
 352                         {
 353                         case 256: // continue
 354                                 setVisible(false);
 355                                 break;
 356                         case 257: // exit
 357                                 dev->closeDevice();
 358                                 break;
 359                         }*/
 360                 }
 361         }
 362
 363         return Parent ? Parent->OnEvent(event) : false;
 364 }
 365
 366
 367