src/guiInventoryMenu.h

   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 #ifndef GUIINVENTORYMENU_HEADER
  22 #define GUIINVENTORYMENU_HEADER
  23
  24 #include "common_irrlicht.h"
  25 #include "inventory.h"
  26 #include "inventorymanager.h"
  27 #include "utility.h"
  28 #include "modalMenu.h"
  29
  30 class IGameDef;
  31 class InventoryManager;
  32
  33 class IFormSource
  34 {
  35 public:
  36         virtual ~IFormSource(){}
  37         virtual std::string getForm() = 0;
  38 };
  39
  40 void drawItemStack(video::IVideoDriver *driver,
  41                 gui::IGUIFont *font,
  42                 const ItemStack &item,
  43                 const core::rect<s32> &rect,
  44                 const core::rect<s32> *clip,
  45                 IGameDef *gamedef);
  46
  47 class GUIInventoryMenu : public GUIModalMenu
  48 {
  49         struct ItemSpec
  50         {
  51                 ItemSpec()
  52                 {
  53                         i = -1;
  54                 }
  55                 ItemSpec(const InventoryLocation &a_inventoryloc,
  56                                 const std::string &a_listname,
  57                                 s32 a_i)
  58                 {
  59                         inventoryloc = a_inventoryloc;
  60                         listname = a_listname;
  61                         i = a_i;
  62                 }
  63                 bool isValid() const
  64                 {
  65                         return i != -1;
  66                 }
  67
  68                 InventoryLocation inventoryloc;
  69                 std::string listname;
  70                 s32 i;
  71         };
  72
  73         struct ListDrawSpec
  74         {
  75                 ListDrawSpec()
  76                 {
  77                 }
  78                 ListDrawSpec(const InventoryLocation &a_inventoryloc,
  79                                 const std::string &a_listname,
  80                                 v2s32 a_pos, v2s32 a_geom):
  81                         inventoryloc(a_inventoryloc),
  82                         listname(a_listname),
  83                         pos(a_pos),
  84                         geom(a_geom)
  85                 {
  86                 }
  87
  88                 InventoryLocation inventoryloc;
  89                 std::string listname;
  90                 v2s32 pos;
  91                 v2s32 geom;
  92         };
  93
  94         struct ImageDrawSpec
  95         {
  96                 ImageDrawSpec()
  97                 {
  98                 }
  99                 ImageDrawSpec(const std::string &a_name,
 100                                 v2s32 a_pos, v2s32 a_geom):
 101                         name(a_name),
 102                         pos(a_pos),
 103                         geom(a_geom)
 104                 {
 105                 }
 106                 std::string name;
 107                 v2s32 pos;
 108                 v2s32 geom;
 109         };
 110
 111 public:
 112         GUIInventoryMenu(gui::IGUIEnvironment* env,
 113                         gui::IGUIElement* parent, s32 id,
 114                         IMenuManager *menumgr,
 115                         InventoryManager *invmgr,
 116                         IGameDef *gamedef
 117                         );
 118         ~GUIInventoryMenu();
 119
 120         void setFormSpec(const std::string &formspec_string,
 121                         InventoryLocation current_inventory_location)
 122         {
 123                 m_formspec_string = formspec_string;
 124                 m_current_inventory_location = current_inventory_location;
 125                 regenerateGui(m_screensize_old);
 126         }
 127
 128         // form_src is deleted by this GUIInventoryMenu
 129         void setFormSource(IFormSource *form_src)
 130         {
 131                 m_form_src = form_src;
 132         }
 133
 134         void removeChildren();
 135         /*
 136                 Remove and re-add (or reposition) stuff
 137         */
 138         void regenerateGui(v2u32 screensize);
 139
 140         ItemSpec getItemAtPos(v2s32 p) const;
 141         void drawList(const ListDrawSpec &s, int phase);
 142         void drawSelectedItem();
 143         void drawMenu();
 144         void updateSelectedItem();
 145
 146         bool OnEvent(const SEvent& event);
 147
 148 protected:
 149         v2s32 getBasePos() const
 150         {
 151                 return padding + AbsoluteRect.UpperLeftCorner;
 152         }
 153
 154         v2s32 padding;
 155         v2s32 spacing;
 156         v2s32 imgsize;
 157
 158         InventoryManager *m_invmgr;
 159         IGameDef *m_gamedef;
 160
 161         std::string m_formspec_string;
 162         InventoryLocation m_current_inventory_location;
 163         IFormSource *m_form_src;
 164
 165         core::array<ListDrawSpec> m_inventorylists;
 166         core::array<ImageDrawSpec> m_images;
 167
 168         ItemSpec *m_selected_item;
 169         u32 m_selected_amount;
 170         bool m_selected_dragging;
 171
 172         v2s32 m_pointer;
 173         gui::IGUIStaticText *m_tooltip_element;
 174 };
 175
 176 #endif
 177