1 /////////////////////////////////////////////////////////////////////////////// 2 // Name: wx/gtk1/dnd.h 3 // Purpose: declaration of the wxDropTarget class 4 // Author: Robert Roebling 5 // RCS-ID: $Id: dnd.h 37065 2006-01-23 02:28:01Z MR $ 6 // Copyright: (c) 1998 Vadim Zeitlin, Robert Roebling 7 // Licence: wxWindows licence 8 /////////////////////////////////////////////////////////////////////////////// 9 10 #ifndef __GTKDNDH__ 11 #define __GTKDNDH__ 12 13 #if wxUSE_DRAG_AND_DROP 14 15 #include "wx/object.h" 16 #include "wx/string.h" 17 #include "wx/dataobj.h" 18 #include "wx/cursor.h" 19 #include "wx/icon.h" 20 #include "wx/gdicmn.h" 21 22 //------------------------------------------------------------------------- 23 // classes 24 //------------------------------------------------------------------------- 25 26 class WXDLLIMPEXP_CORE wxWindow; 27 28 class WXDLLIMPEXP_CORE wxDropTarget; 29 class WXDLLIMPEXP_CORE wxTextDropTarget; 30 class WXDLLIMPEXP_CORE wxFileDropTarget; 31 32 class WXDLLIMPEXP_CORE wxDropSource; 33 34 // ---------------------------------------------------------------------------- 35 // macros 36 // ---------------------------------------------------------------------------- 37 38 // this macro may be used instead for wxDropSource ctor arguments: it will use 39 // the icon 'name' from an XPM file under GTK, but will expand to something 40 // else under MSW. If you don't use it, you will have to use #ifdef in the 41 // application code. 42 #define wxDROP_ICON(name) wxICON(name) 43 44 //------------------------------------------------------------------------- 45 // wxDropTarget 46 //------------------------------------------------------------------------- 47 48 class WXDLLIMPEXP_CORE wxDropTarget: public wxDropTargetBase 49 { 50 public: 51 wxDropTarget(wxDataObject *dataObject = (wxDataObject*) NULL ); 52 53 virtual wxDragResult OnDragOver(wxCoord x, wxCoord y, wxDragResult def); 54 virtual bool OnDrop(wxCoord x, wxCoord y); 55 virtual wxDragResult OnData(wxCoord x, wxCoord y, wxDragResult def); 56 virtual bool GetData(); 57 58 // implementation 59 60 GdkAtom GetMatchingPair(); 61 62 void RegisterWidget( GtkWidget *widget ); 63 void UnregisterWidget( GtkWidget *widget ); 64 65 GdkDragContext *m_dragContext; 66 GtkWidget *m_dragWidget; 67 GtkSelectionData *m_dragData; 68 guint m_dragTime; 69 bool m_firstMotion; // gdk has no "gdk_drag_enter" event 70 SetDragContext(GdkDragContext * dc)71 void SetDragContext( GdkDragContext *dc ) { m_dragContext = dc; } SetDragWidget(GtkWidget * w)72 void SetDragWidget( GtkWidget *w ) { m_dragWidget = w; } SetDragData(GtkSelectionData * sd)73 void SetDragData( GtkSelectionData *sd ) { m_dragData = sd; } SetDragTime(guint time)74 void SetDragTime( guint time ) { m_dragTime = time; } 75 }; 76 77 //------------------------------------------------------------------------- 78 // wxDropSource 79 //------------------------------------------------------------------------- 80 81 class WXDLLIMPEXP_CORE wxDropSource: public wxDropSourceBase 82 { 83 public: 84 // constructor. set data later with SetData() 85 wxDropSource( wxWindow *win = (wxWindow *)NULL, 86 const wxIcon © = wxNullIcon, 87 const wxIcon &move = wxNullIcon, 88 const wxIcon &none = wxNullIcon); 89 90 // constructor for setting one data object 91 wxDropSource( wxDataObject& data, 92 wxWindow *win, 93 const wxIcon © = wxNullIcon, 94 const wxIcon &move = wxNullIcon, 95 const wxIcon &none = wxNullIcon); 96 97 virtual ~wxDropSource(); 98 99 // start drag action 100 virtual wxDragResult DoDragDrop(int flags = wxDrag_CopyOnly); 101 102 // GTK implementation 103 void RegisterWindow(); 104 void UnregisterWindow(); 105 106 void PrepareIcon( int action, GdkDragContext *context ); 107 108 GtkWidget *m_widget; 109 GtkWidget *m_iconWindow; 110 GdkDragContext *m_dragContext; 111 wxWindow *m_window; 112 113 wxDragResult m_retValue; 114 wxIcon m_iconCopy, 115 m_iconMove, 116 m_iconNone; 117 118 bool m_waiting; 119 120 private: 121 // common part of both ctors 122 void SetIcons(const wxIcon& copy, 123 const wxIcon& move, 124 const wxIcon& none); 125 }; 126 127 #endif // wxUSE_DRAG_AND_DROP 128 129 #endif //__GTKDNDH__ 130 131