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