// Name: dnd.h
// Purpose: declaration of the wxDropTarget class
// Author: Robert Roebling
-// RCS-ID:
+// RCS-ID: $Id$
// Copyright: (c) 1998 Vadim Zeitlin, Robert Roebling
-// Licence: wxWindows license
+// Licence: wxWindows licence
///////////////////////////////////////////////////////////////////////////////
+#ifndef _WX_GTK_DND_H_
+#define _WX_GTK_DND_H_
-#ifndef __GTKDNDH__
-#define __GTKDNDH__
+#include "wx/icon.h"
-#ifdef __GNUG__
-#pragma interface
-#endif
+// ----------------------------------------------------------------------------
+// macros
+// ----------------------------------------------------------------------------
-#include "wx/defs.h"
-#include "wx/object.h"
-#include "wx/string.h"
-#include "wx/cursor.h"
-
-//-------------------------------------------------------------------------
-// classes
-//-------------------------------------------------------------------------
-
-class wxWindow;
-
-class wxDropTarget;
-class wxTextDropTarget;
-class wxDragSource;
-class wxTextDragSource;
+// 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 wxDropTarget: wxObject
+class WXDLLIMPEXP_CORE wxDropTarget: public wxDropTargetBase
{
- public:
+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();
- wxDropTarget();
- ~wxDropTarget();
- virtual void OnEnter() { }
- virtual void OnLeave() { }
- virtual bool OnDrop( long x, long y, const void *pData ) = 0;
+ // implementation
- public:
+ GdkAtom GetMatchingPair();
- void Drop( GdkEvent *event, int x, int y );
- virtual void RegisterWidget( GtkWidget *widget ) = 0;
+ 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; }
};
//-------------------------------------------------------------------------
-// wxTextDropTarget
+// wxDropSource
//-------------------------------------------------------------------------
-class wxTextDropTarget: public wxDropTarget
+class WXDLLIMPEXP_CORE wxDropSource: public wxDropSourceBase
{
- public:
+public:
+ // constructor. set data later with SetData()
+ wxDropSource( wxWindow *win = (wxWindow *)NULL,
+ const wxIcon © = wxNullIcon,
+ const wxIcon &move = wxNullIcon,
+ const wxIcon &none = wxNullIcon);
- wxTextDropTarget() {};
- virtual bool OnDrop( long x, long y, const void *pData );
- virtual bool OnDropText( long x, long y, const char *psz );
- virtual void RegisterWidget( GtkWidget *widget );
-};
+ // constructor for setting one data object
+ wxDropSource( wxDataObject& data,
+ wxWindow *win,
+ const wxIcon © = wxNullIcon,
+ const wxIcon &move = wxNullIcon,
+ const wxIcon &none = wxNullIcon);
-//-------------------------------------------------------------------------
-// wxDragSource
-//-------------------------------------------------------------------------
+ virtual ~wxDropSource();
-class wxDragSource: public wxObject
-{
- public:
-
- wxDragSource( wxWindow *win );
- ~wxDragSource(void);
- void SetData( char *data, long size );
- void Start( int x, int y );
-
- public:
-
- void ConnectWindow(void);
- void UnconnectWindow(void);
- virtual void RegisterWindow(void) = 0;
- void UnregisterWindow(void);
-
- GtkWidget *m_widget;
- wxWindow *m_window;
- char *m_data;
- long m_size;
- wxCursor m_defaultCursor;
- wxCursor m_goaheadCursor;
-};
+ // start drag action
+ virtual wxDragResult DoDragDrop(int flags = wxDrag_CopyOnly);
-//-------------------------------------------------------------------------
-// wxTextDragSource
-//-------------------------------------------------------------------------
+ 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);
+
+ // GTK implementation
+ void GTKConnectDragSignals();
+ void GTKDisconnectDragSignals();
-class wxTextDragSource: public wxDragSource
-{
- public:
-
- wxTextDragSource( wxWindow *win ) : wxDragSource(win) {};
- void SetTextData( const wxString &text );
- void RegisterWindow(void);
-
- private:
-
- wxString m_tmp;
};
-#endif
- //__GTKDNDH__
+#endif // _WX_GTK_DND_H_
projects / wxWidgets.git / blobdiff