/////////////////////////////////////////////////////////////////////////////// // Name: dnd.h // Purpose: declaration of the wxDropTarget class // Author: Robert Roebling // RCS-ID: $Id$ // Copyright: (c) 1998 Vadim Zeitlin, Robert Roebling // Licence: wxWindows licence /////////////////////////////////////////////////////////////////////////////// #ifndef __GTKDNDH__ #define __GTKDNDH__ #if defined(__GNUG__) && !defined(NO_GCC_PRAGMA) #pragma interface #endif #if wxUSE_DRAG_AND_DROP #include "wx/object.h" #include "wx/string.h" #include "wx/dataobj.h" #include "wx/cursor.h" #include "wx/icon.h" #include "wx/gdicmn.h" //------------------------------------------------------------------------- // classes //------------------------------------------------------------------------- class WXDLLIMPEXP_CORE wxWindow; class WXDLLIMPEXP_CORE wxDropTarget; class WXDLLIMPEXP_CORE wxTextDropTarget; class WXDLLIMPEXP_CORE wxFileDropTarget; class WXDLLIMPEXP_CORE wxDropSource; // ---------------------------------------------------------------------------- // macros // ---------------------------------------------------------------------------- // this macro may be used instead for wxDropSource ctor arguments: it will use // the icon 'name' from an XPM file under GTK, but will expand to something // else under MSW. If you don't use it, you will have to use #ifdef in the // application code. #define wxDROP_ICON(name) wxICON(name) //------------------------------------------------------------------------- // wxDropTarget //------------------------------------------------------------------------- class WXDLLIMPEXP_CORE wxDropTarget: public wxDropTargetBase { public: wxDropTarget(wxDataObject *dataObject = (wxDataObject*) NULL ); virtual wxDragResult OnDragOver(wxCoord x, wxCoord y, wxDragResult def); virtual bool OnDrop(wxCoord x, wxCoord y); virtual wxDragResult OnData(wxCoord x, wxCoord y, wxDragResult def); virtual bool GetData(); // implementation GdkAtom GetMatchingPair(); void RegisterWidget( GtkWidget *widget ); void UnregisterWidget( GtkWidget *widget ); GdkDragContext *m_dragContext; GtkWidget *m_dragWidget; GtkSelectionData *m_dragData; guint m_dragTime; bool m_firstMotion; // gdk has no "gdk_drag_enter" event void SetDragContext( GdkDragContext *dc ) { m_dragContext = dc; } void SetDragWidget( GtkWidget *w ) { m_dragWidget = w; } void SetDragData( GtkSelectionData *sd ) { m_dragData = sd; } void SetDragTime( guint time ) { m_dragTime = time; } }; //------------------------------------------------------------------------- // wxDropSource //------------------------------------------------------------------------- class WXDLLIMPEXP_CORE wxDropSource: public wxDropSourceBase { public: // constructor. set data later with SetData() wxDropSource( wxWindow *win = (wxWindow *)NULL, const wxIcon © = wxNullIcon, const wxIcon &move = wxNullIcon, const wxIcon &none = wxNullIcon); // constructor for setting one data object wxDropSource( wxDataObject& data, wxWindow *win, const wxIcon © = wxNullIcon, const wxIcon &move = wxNullIcon, const wxIcon &none = wxNullIcon); virtual ~wxDropSource(); // start drag action virtual wxDragResult DoDragDrop(int flags = wxDrag_CopyOnly); // GTK implementation void RegisterWindow(); void UnregisterWindow(); void PrepareIcon( int action, GdkDragContext *context ); GtkWidget *m_widget; GtkWidget *m_iconWindow; GdkDragContext *m_dragContext; wxWindow *m_window; wxDragResult m_retValue; wxIcon m_iconCopy, m_iconMove, m_iconNone; bool m_waiting; private: // common part of both ctors void SetIcons(const wxIcon& copy, const wxIcon& move, const wxIcon& none); }; #endif // wxUSE_DRAG_AND_DROP #endif //__GTKDNDH__