include/wx/os2/dnd.h

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // Name:        dnd.h
   3 // Purpose:     declaration of the wxDropTarget class
   4 // Author:      David Webster
   5 // Modified by:
   6 // Created:     10/21/99
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) 1999 David Webster
   9 // Licence:     wxWindows license
  10 ///////////////////////////////////////////////////////////////////////////////
  11
  12
  13 #ifndef __OS2DNDH__
  14 #define __OS2DNDH__
  15
  16 #if !wxUSE_DRAG_AND_DROP
  17     #error  "You should #define wxUSE_DRAG_AND_DROP to 1 to compile this file!"
  18 #endif  //WX_DRAG_DROP
  19
  20 #define INCL_WINSTDDRAG
  21 #include <os2.h>
  22 #ifndef __EMX__
  23 #include <pmstddlg.h>
  24 #endif
  25
  26 //-------------------------------------------------------------------------
  27 // wxDropSource
  28 //-------------------------------------------------------------------------
  29
  30 class WXDLLEXPORT wxDropSource: public wxDropSourceBase
  31 {
  32 public:
  33     /* constructor. set data later with SetData() */
  34     wxDropSource(wxWindow* pWin);
  35
  36     /* constructor for setting one data object */
  37     wxDropSource( wxDataObject& rData,
  38                   wxWindow*     pWin
  39                 );
  40     virtual ~wxDropSource();
  41
  42     /* start drag action */
  43     virtual wxDragResult DoDragDrop(int flags = wxDrag_CopyOnly);
  44
  45 protected:
  46     void Init(void);
  47     bool                            m_bLazyDrag;
  48
  49     DRAGIMAGE*                      m_pDragImage;
  50     DRAGINFO*                       m_pDragInfo;
  51     DRAGTRANSFER*                   m_pDragTransfer;
  52 };
  53
  54 //-------------------------------------------------------------------------
  55 // wxDropTarget
  56 //-------------------------------------------------------------------------
  57
  58 class WXDLLEXPORT wxDropTarget: public wxDropTargetBase
  59 {
  60 public:
  61     wxDropTarget(wxDataObject *dataObject = (wxDataObject*)NULL);
  62     virtual ~wxDropTarget();
  63
  64     void Register(WXHWND hwnd);
  65     void Revoke(WXHWND hwnd);
  66
  67     virtual wxDragResult OnDragOver(wxCoord x, wxCoord y, wxDragResult def);
  68     virtual bool OnDrop(wxCoord x, wxCoord y);
  69     virtual wxDragResult OnData(wxCoord x, wxCoord y, wxDragResult vResult);
  70     virtual bool GetData();
  71
  72   // implementation
  73 protected:
  74     virtual bool IsAcceptable(DRAGINFO* pInfo);
  75
  76     DRAGINFO*                       m_pDragInfo;
  77     DRAGTRANSFER*                   m_pDragTransfer;
  78 };
  79
  80 #endif //__OS2DNDH__
  81