///////////////////////////////////////////////////////////////////////////////
-// Name: dnd.h
+// Name: wx/gtk/dnd.h
// Purpose: declaration of the wxDropTarget class
// Author: Robert Roebling
// 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
-
-#include "wx/defs.h"
-
-#if wxUSE_DRAG_AND_DROP
+// ----------------------------------------------------------------------------
+// macros
+// ----------------------------------------------------------------------------
-#include "wx/object.h"
-#include "wx/string.h"
-#include "wx/dataobj.h"
-#include "wx/cursor.h"
+// 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)
//-------------------------------------------------------------------------
-// conditional compilation
+// wxDropTarget
//-------------------------------------------------------------------------
-#if (GTK_MINOR_VERSION == 1)
-#if (GTK_MICRO_VERSION >= 3)
-#define NEW_GTK_DND_CODE
-#endif
-#endif
+class WXDLLIMPEXP_CORE wxDropTarget: public wxDropTargetBase
+{
+public:
+ wxDropTarget(wxDataObject *dataObject = NULL );
-//-------------------------------------------------------------------------
-// classes
-//-------------------------------------------------------------------------
+ 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();
-class wxWindow;
+ // Can only be called during OnXXX methods.
+ wxDataFormat GetMatchingPair();
-class wxDropTarget;
-class wxTextDropTarget;
-class wxFileDropTarget;
+ // implementation
-class wxDropSource;
+ GdkAtom GTKGetMatchingPair(bool quiet = false);
+ wxDragResult GTKFigureOutSuggestedAction();
-//-------------------------------------------------------------------------
-// wxDropTarget
-//-------------------------------------------------------------------------
+ void GtkRegisterWidget( GtkWidget *widget );
+ void GtkUnregisterWidget( GtkWidget *widget );
-class wxDropTarget: public wxObject
-{
- public:
-
- wxDropTarget();
- ~wxDropTarget();
-
- virtual void OnEnter() { }
- virtual void OnLeave() { }
- virtual bool OnDrop( long x, long y, const void *data, size_t size ) = 0;
-
- // Override these to indicate what kind of data you support:
-
- virtual size_t GetFormatCount() const = 0;
- virtual wxDataFormat GetFormat(size_t n) const = 0;
-
- // implementation
-
- void RegisterWidget( GtkWidget *widget );
- void UnregisterWidget( GtkWidget *widget );
-};
+ GdkDragContext *m_dragContext;
+ GtkWidget *m_dragWidget;
+ GtkSelectionData *m_dragData;
+ unsigned m_dragTime;
+ bool m_firstMotion; // gdk has no "gdk_drag_enter" event
-//-------------------------------------------------------------------------
-// wxTextDropTarget
-//-------------------------------------------------------------------------
-
-class wxTextDropTarget: public wxDropTarget
-{
- public:
-
- wxTextDropTarget() {};
- virtual bool OnDrop( long x, long y, const void *data, size_t size );
- virtual bool OnDropText( long x, long y, const char *psz );
-
- protected:
-
- virtual size_t GetFormatCount() const;
- virtual wxDataFormat GetFormat(size_t n) const;
-};
-
-// ----------------------------------------------------------------------------
-// A drop target which accepts files (dragged from File Manager or Explorer)
-// ----------------------------------------------------------------------------
-
-class wxFileDropTarget: public wxDropTarget
-{
- public:
-
- wxFileDropTarget() {};
-
- virtual bool OnDrop( long x, long y, const void *data, size_t size );
- virtual bool OnDropFiles( long x, long y,
- size_t nFiles, const char * const aszFiles[] );
-
- protected:
-
- virtual size_t GetFormatCount() const;
- virtual wxDataFormat GetFormat(size_t n) const;
+ void GTKSetDragContext( GdkDragContext *dc ) { m_dragContext = dc; }
+ void GTKSetDragWidget( GtkWidget *w ) { m_dragWidget = w; }
+ void GTKSetDragData( GtkSelectionData *sd ) { m_dragData = sd; }
+ void GTKSetDragTime(unsigned time) { m_dragTime = time; }
};
//-------------------------------------------------------------------------
// wxDropSource
//-------------------------------------------------------------------------
-enum wxDragResult
+class WXDLLIMPEXP_CORE wxDropSource: public wxDropSourceBase
{
- wxDragError, // error prevented the d&d operation from completing
- wxDragNone, // drag target didn't accept the data
- wxDragCopy, // the data was successfully copied
- wxDragMove, // the data was successfully moved
- wxDragCancel // the operation was cancelled by user (not an error)
-};
+public:
+ // constructor. set data later with SetData()
+ wxDropSource( wxWindow *win = 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();
+
+ // set the icon corresponding to given drag result
+ void SetIcon(wxDragResult res, const wxIcon& icon)
+ {
+ if ( res == wxDragCopy )
+ m_iconCopy = icon;
+ else if ( res == wxDragMove )
+ m_iconMove = icon;
+ else
+ m_iconNone = icon;
+ }
+
+ // start drag action
+ virtual wxDragResult DoDragDrop(int flags = wxDrag_CopyOnly);
+
+ 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 wxDropSource: public wxObject
-{
- public:
-
- wxDropSource( wxWindow *win );
- wxDropSource( wxDataObject &data, wxWindow *win );
-
- ~wxDropSource(void);
-
- void SetData( wxDataObject &data );
- wxDragResult DoDragDrop( bool bAllowMove = FALSE );
-
- virtual bool GiveFeedback( wxDragResult WXUNUSED(effect), bool WXUNUSED(bScrolling) ) { return TRUE; };
-
- // implementation
-
- void RegisterWindow(void);
- void UnregisterWindow(void);
-
- GtkWidget *m_widget;
- wxWindow *m_window;
- wxDragResult m_retValue;
- wxDataObject *m_data;
-
- wxCursor m_defaultCursor;
- wxCursor m_goaheadCursor;
};
-#endif
-
- // wxUSE_DRAG_AND_DROP
-
-#endif
- //__GTKDNDH__
+#endif // _WX_GTK_DND_H_
projects / wxWidgets.git / blobdiff