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