src/SUIT/SUIT_ViewModel.h

   1 #ifndef SUIT_VIEWMODEL_H
   2 #define SUIT_VIEWMODEL_H
   3
   4 #include "SUIT.h"
   5 #include "SUIT_Desktop.h"
   6 #include "SUIT_ViewWindow.h"
   7 #include "SUIT_ViewManager.h"
   8
   9 #include <qobject.h>
  10 #include <qcursor.h>
  11
  12 /*!
  13         This object manages the definition and behaviour of a View Window.
  14         In case of definition of this object in an external lib that lib must
  15         have an exported function "createViewModel" which returns newly created
  16         instance of SUIT_ViewModel.
  17 */
  18
  19 #ifdef WIN32
  20 #pragma warning( disable:4251 )
  21 #endif
  22
  23 class SUIT_EXPORT SUIT_ViewModel : public QObject
  24 {
  25         Q_OBJECT
  26 public:
  27   enum HotOperation { PAN, ZOOM, ROTATE, FIT_AREA };
  28
  29   typedef QMap<HotOperation, Qt::ButtonState> StatesMap;
  30   typedef QMap<HotOperation, Qt::ButtonState> ButtonsMap;
  31
  32         SUIT_ViewModel();
  33         virtual ~SUIT_ViewModel();
  34
  35         virtual SUIT_ViewWindow* createView(SUIT_Desktop* theDesktop);
  36
  37         virtual void      setViewManager(SUIT_ViewManager* theViewManager) { myViewManager = theViewManager; }
  38         SUIT_ViewManager* getViewManager() const { return myViewManager; }
  39
  40   virtual QString   getType() const { return "SUIT_ViewModel"; }
  41
  42   virtual void      contextMenuPopup(QPopupMenu*) {}
  43
  44   static void       setHotButton(HotOperation theOper, Qt::ButtonState theState,
  45                                                        Qt::ButtonState theButton);
  46   static void       getHotButton(HotOperation theOper, Qt::ButtonState& theState,
  47                                                        Qt::ButtonState& theButton);
  48
  49 protected:
  50         SUIT_ViewManager* myViewManager;
  51
  52 public:
  53   static StatesMap  myStateMap;
  54   static ButtonsMap myButtonMap;
  55 };
  56
  57 #ifdef WIN32
  58 #pragma warning( default:4251 )
  59 #endif
  60
  61 extern "C"
  62 {
  63   typedef SUIT_ViewModel* (*VIEWMODEL_CREATE_FUNC)();
  64 }
  65
  66 #define VIEWMODEL_CREATE_NAME   "createViewModel"
  67
  68 #endif