include/wx/mac/dnd.h

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // Name:        dnd.h
   3 // Purpose:     Declaration of the wxDropTarget, wxDropSource class etc.
   4 // Author:      Stefan Csomor
   5 // RCS-ID:      $Id$
   6 // Copyright:   (c) 1998 Stefan Csomor
   7 // Licence:     wxWindows licence
   8 ///////////////////////////////////////////////////////////////////////////////
   9
  10 #ifndef _WX_DND_H_
  11 #define _WX_DND_H_
  12
  13 #if defined(__GNUG__) && !defined(__APPLE__)
  14 #pragma interface "dnd.h"
  15 #endif
  16
  17 #if wxUSE_DRAG_AND_DROP
  18
  19 #include "wx/defs.h"
  20 #include "wx/object.h"
  21 #include "wx/string.h"
  22 #include "wx/string.h"
  23 #include "wx/dataobj.h"
  24 #include "wx/cursor.h"
  25
  26 //-------------------------------------------------------------------------
  27 // classes
  28 //-------------------------------------------------------------------------
  29
  30 class WXDLLEXPORT wxWindow;
  31
  32 class WXDLLEXPORT wxDropTarget;
  33 class WXDLLEXPORT wxTextDropTarget;
  34 class WXDLLEXPORT wxFileDropTarget;
  35
  36 class WXDLLEXPORT wxDropSource;
  37
  38 // ----------------------------------------------------------------------------
  39 // macros
  40 // ----------------------------------------------------------------------------
  41
  42 // this macro may be used instead for wxDropSource ctor arguments: it will use
  43 // the icon 'name' from an XPM file under GTK, but will expand to something
  44 // else under MSW. If you don't use it, you will have to use #ifdef in the
  45 // application code.
  46 #define wxDROP_ICON(name)   wxICON(name)
  47
  48 //-------------------------------------------------------------------------
  49 // wxDropTarget
  50 //-------------------------------------------------------------------------
  51
  52 class WXDLLEXPORT wxDropTarget: public wxDropTargetBase
  53 {
  54   public:
  55
  56     wxDropTarget(wxDataObject *dataObject = (wxDataObject*) NULL );
  57
  58     virtual wxDragResult OnDragOver(wxCoord x, wxCoord y, wxDragResult def);
  59     virtual bool OnDrop(wxCoord x, wxCoord y);
  60     virtual wxDragResult OnData(wxCoord x, wxCoord y, wxDragResult def);
  61     virtual bool GetData();
  62
  63     bool CurrentDragHasSupportedFormat() ;
  64     void SetCurrentDrag( void* drag ) { m_currentDrag = drag ; }
  65     void* GetCurrentDrag() { return m_currentDrag ; }
  66   protected :
  67     void* m_currentDrag ;
  68 };
  69
  70 //-------------------------------------------------------------------------
  71 // wxDropSource
  72 //-------------------------------------------------------------------------
  73
  74 class WXDLLEXPORT wxDropSource: public wxDropSourceBase
  75 {
  76 public:
  77     /* constructor. set data later with SetData() */
  78     wxDropSource( wxWindow *win = (wxWindow *)NULL,
  79                   const wxIcon &copy = wxNullIcon,
  80                   const wxIcon &move = wxNullIcon,
  81                   const wxIcon &none = wxNullIcon);
  82
  83     /* constructor for setting one data object */
  84     wxDropSource( wxDataObject& data,
  85                   wxWindow *win,
  86                   const wxIcon &copy = wxNullIcon,
  87                   const wxIcon &move = wxNullIcon,
  88                   const wxIcon &none = wxNullIcon);
  89
  90
  91     ~wxDropSource();
  92
  93     /* start drag action */
  94     virtual wxDragResult DoDragDrop(int flags = wxDrag_CopyOnly);
  95
  96     wxWindow*     GetWindow() { return m_window ; }
  97     void SetCurrentDrag( void* drag ) { m_currentDrag = drag ; }
  98     void* GetCurrentDrag() { return m_currentDrag ; }
  99   protected :
 100     wxWindow        *m_window;
 101     void* m_currentDrag ;
 102 };
 103
 104 #endif
 105       // D&D
 106
 107 #endif
 108        //_WX_DND_H_
 109