MyGUI  3.2.0
MyGUI_DDContainer.h
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00001 
00006 /*
00007     This file is part of MyGUI.
00008 
00009     MyGUI is free software: you can redistribute it and/or modify
00010     it under the terms of the GNU Lesser General Public License as published by
00011     the Free Software Foundation, either version 3 of the License, or
00012     (at your option) any later version.
00013 
00014     MyGUI is distributed in the hope that it will be useful,
00015     but WITHOUT ANY WARRANTY; without even the implied warranty of
00016     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00017     GNU Lesser General Public License for more details.
00018 
00019     You should have received a copy of the GNU Lesser General Public License
00020     along with MyGUI.  If not, see <http://www.gnu.org/licenses/>.
00021 */
00022 #ifndef __MYGUI_DDCONTAINER_H__
00023 #define __MYGUI_DDCONTAINER_H__
00024 
00025 #include "MyGUI_Prerequest.h"
00026 #include "MyGUI_Widget.h"
00027 #include "MyGUI_DDItemInfo.h"
00028 #include "MyGUI_EventPair.h"
00029 
00030 namespace MyGUI
00031 {
00032 
00033     typedef delegates::CMultiDelegate3<DDContainer*, const DDItemInfo&, bool&> EventHandle_DDContainerPtrCDDItemInfoRefBoolRef;
00034     typedef delegates::CMultiDelegate3<DDContainer*, const DDItemInfo&, bool> EventHandle_DDContainerPtrCDDItemInfoRefBool;
00035     typedef delegates::CMultiDelegate2<DDContainer*, DDItemState> EventHandle_EventHandle_DDContainerPtrDDItemState;
00036     typedef delegates::CDelegate3<DDContainer*, Widget*&, IntCoord&> EventHandle_EventHandle_DDContainerPtrWidgetPtrRefIntCoordRef;
00037 
00038 
00039     class MYGUI_EXPORT DDContainer :
00040         public Widget
00041     {
00042         MYGUI_RTTI_DERIVED( DDContainer )
00043 
00044     public:
00045         DDContainer();
00046 
00050         void setNeedDragDrop(bool _value);
00052         bool getNeedDragDrop() const;
00053 
00054         void resetDrag();
00055 
00056     /*events:*/
00063         EventHandle_DDContainerPtrCDDItemInfoRefBoolRef
00064             eventStartDrag;
00065 
00072         EventHandle_DDContainerPtrCDDItemInfoRefBoolRef
00073             eventRequestDrop;
00074 
00081         EventHandle_DDContainerPtrCDDItemInfoRefBool
00082             eventDropResult;
00083 
00089         EventHandle_EventHandle_DDContainerPtrDDItemState
00090             eventChangeDDState;
00091 
00098         EventHandle_EventHandle_DDContainerPtrWidgetPtrRefIntCoordRef
00099             requestDragWidgetInfo;
00100 
00101 
00102     /*internal:*/
00103         // метод для установления стейта айтема
00104         virtual void _setContainerItemInfo(size_t _index, bool _set, bool _accept);
00105 
00110         delegates::CMultiDelegate1<DDContainer*>
00111             _eventInvalideContainer;
00112 
00119         delegates::CMultiDelegate3<DDContainer*, Widget*, const DDWidgetState&>
00120             eventUpdateDropState;
00121 
00122     protected:
00123         virtual void onMouseButtonPressed(int _left, int _top, MouseButton _id);
00124         virtual void onMouseButtonReleased(int _left, int _top, MouseButton _id);
00125         virtual void onMouseDrag(int _left, int _top, MouseButton _id);
00126 
00127         virtual void notifyInvalideDrop(DDContainer* _sender);
00128 
00129         virtual void removeDropItems();
00130         virtual void updateDropItems();
00131         virtual void updateDropItemsState(const DDWidgetState& _state);
00132 
00133         void mouseDrag(MouseButton _id);
00134         void mouseButtonReleased(MouseButton _id);
00135         void mouseButtonPressed(MouseButton _id);
00136 
00137         void endDrop(bool _reset);
00138 
00139         virtual void setPropertyOverride(const std::string& _key, const std::string& _value);
00140 
00141     protected:
00142         bool mDropResult;
00143         bool mNeedDrop;
00144         bool mStartDrop;
00145 
00146         Widget* mOldDrop;
00147         Widget* mCurrentSender;
00148 
00149         DDItemInfo mDropInfo;
00150 
00151         size_t mDropSenderIndex;
00152 
00153         // список виджетов для дропа
00154         Widget* mDropItem;
00155         IntCoord mDropDimension;
00156 
00157         IntPoint mClickInWidget;
00158 
00159         // нужно и виджету поддержка драг энд дропа
00160         bool mNeedDragDrop;
00161 
00162         DDContainer* mReseiverContainer;
00163     };
00164 
00165 } // namespace MyGUI
00166 
00167 #endif // __MYGUI_DDCONTAINER_H__