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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(NO_GCC_PRAGMA)
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(X) wxCursor( (const char**) X##_xpm )
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 // ctors: if you use default ctor you must call SetData() later!
78 //
79 // NB: the "wxWindow *win" parameter is unused and is here only for wxGTK
80 // compatibility, as well as both icon parameters
81 wxDropSource( wxWindow *win = (wxWindow *)NULL,
82 const wxCursor &cursorCopy = wxNullCursor,
83 const wxCursor &cursorMove = wxNullCursor,
84 const wxCursor &cursorStop = wxNullCursor);
85
86 /* constructor for setting one data object */
87 wxDropSource( wxDataObject& data,
88 wxWindow *win,
89 const wxCursor &cursorCopy = wxNullCursor,
90 const wxCursor &cursorMove = wxNullCursor,
91 const wxCursor &cursorStop = wxNullCursor);
92
93 ~wxDropSource();
94
95 // do it (call this in response to a mouse button press, for example)
96 // params: if bAllowMove is false, data can be only copied
97 virtual wxDragResult DoDragDrop(int flags = wxDrag_CopyOnly);
98
99 wxWindow* GetWindow() { return m_window ; }
100 void SetCurrentDrag( void* drag ) { m_currentDrag = drag ; }
101 void* GetCurrentDrag() { return m_currentDrag ; }
102 bool MacInstallDefaultCursor(wxDragResult effect) ;
103 protected :
104
105 wxWindow *m_window;
106 void* m_currentDrag ;
107 };
108
109 #endif
110 // D&D
111
112 #endif
113 //_WX_DND_H_
114