// Author: Robert Roebling
// RCS-ID: $Id$
// Copyright: (c) 1998 Vadim Zeitlin, Robert Roebling
-// Licence: wxWindows license
+// Licence: wxWindows licence
///////////////////////////////////////////////////////////////////////////////
-
#ifndef __GTKDNDH__
#define __GTKDNDH__
-#ifdef __GNUG__
-#pragma interface
-#endif
+#if wxUSE_DRAG_AND_DROP
-#include "wx/defs.h"
#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 wxWindow;
+class WXDLLIMPEXP_CORE wxWindow;
+
+class WXDLLIMPEXP_CORE wxDropTarget;
+class WXDLLIMPEXP_CORE wxTextDropTarget;
+class WXDLLIMPEXP_CORE wxFileDropTarget;
-class wxDataObject;
-class wxTextDataObject;
-class wxFileDataObject;
+class WXDLLIMPEXP_CORE wxDropSource;
-class wxDropTarget;
-class wxTextDropTarget;
-class wxFileDropTarget;
+// ----------------------------------------------------------------------------
+// macros
+// ----------------------------------------------------------------------------
-class wxDropSource;
+// 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)
//-------------------------------------------------------------------------
-// wxDataObject
+// wxDropTarget
//-------------------------------------------------------------------------
-class wxDataObject: public wxObject
+class WXDLLIMPEXP_CORE wxDropTarget: public wxDropTargetBase
{
public:
+ wxDropTarget(wxDataObject *dataObject = (wxDataObject*) NULL );
- wxDataObject() {};
- ~wxDataObject() {};
-
- virtual wxDataFormat GetPreferredFormat() const = 0;
- virtual bool IsSupportedFormat( wxDataFormat format ) const = 0;
- virtual size_t GetDataSize() const = 0;
- virtual void GetDataHere( void *data ) const = 0;
+ 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();
-};
-
-// ----------------------------------------------------------------------------
-// wxTextDataObject is a specialization of wxDataObject for text data
-// ----------------------------------------------------------------------------
-
-class wxTextDataObject : public wxDataObject
-{
-public:
+ // implementation
- wxTextDataObject() { }
- wxTextDataObject(const wxString& strText) : m_strText(strText) { }
- void Init(const wxString& strText) { m_strText = strText; }
+ GdkAtom GetMatchingPair();
- virtual wxDataFormat GetPreferredFormat() const
- { return wxDF_TEXT; }
-
- virtual bool IsSupportedFormat(wxDataFormat format) const
- { return format == wxDF_TEXT; }
+ void RegisterWidget( GtkWidget *widget );
+ void UnregisterWidget( GtkWidget *widget );
- virtual size_t GetDataSize() const
- { return m_strText.Len() + 1; } // +1 for trailing '\0'
-
- virtual void GetDataHere( void *data ) const
- { memcpy(data, m_strText.c_str(), GetDataSize()); }
+ GdkDragContext *m_dragContext;
+ GtkWidget *m_dragWidget;
+ GtkSelectionData *m_dragData;
+ guint m_dragTime;
+ bool m_firstMotion; // gdk has no "gdk_drag_enter" event
-private:
- wxString m_strText;
-
+ 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; }
};
-// ----------------------------------------------------------------------------
-// wxFileDataObject is a specialization of wxDataObject for file names
-// ----------------------------------------------------------------------------
+//-------------------------------------------------------------------------
+// wxDropSource
+//-------------------------------------------------------------------------
-class wxFileDataObject : public wxDataObject
+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);
- wxFileDataObject(void) { }
- void AddFile( const wxString &file )
- { m_files += file; m_files += '\0'; }
-
- virtual wxDataFormat GetPreferredFormat() const
- { return wxDF_FILENAME; }
-
- virtual bool IsSupportedFormat( wxDataFormat format ) const
- { return format == wxDF_FILENAME; }
-
- virtual size_t GetDataSize() const
- { return m_files.Len(); } // no trailing '\0'
-
- virtual void GetDataHere( void *data ) const
- { memcpy(data, m_files.c_str(), GetDataSize()); }
+ // constructor for setting one data object
+ wxDropSource( wxDataObject& data,
+ wxWindow *win,
+ const wxIcon © = wxNullIcon,
+ const wxIcon &move = wxNullIcon,
+ const wxIcon &none = wxNullIcon);
-private:
- wxString m_files;
-
-};
-//-------------------------------------------------------------------------
-// wxDropTarget
-//-------------------------------------------------------------------------
+ virtual ~wxDropSource();
-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 );
-};
+ // start drag action
+ virtual wxDragResult DoDragDrop(int flags = wxDrag_CopyOnly);
-//-------------------------------------------------------------------------
-// wxTextDropTarget
-//-------------------------------------------------------------------------
+ // GTK implementation
+ void RegisterWindow();
+ void UnregisterWindow();
-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;
-};
+ void PrepareIcon( int action, GdkDragContext *context );
-// ----------------------------------------------------------------------------
-// A drop target which accepts files (dragged from File Manager or Explorer)
-// ----------------------------------------------------------------------------
+ GtkWidget *m_widget;
+ GtkWidget *m_iconWindow;
+ GdkDragContext *m_dragContext;
+ wxWindow *m_window;
-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;
-};
+ wxDragResult m_retValue;
+ wxIcon m_iconCopy,
+ m_iconMove,
+ m_iconNone;
-//-------------------------------------------------------------------------
-// wxDropSource
-//-------------------------------------------------------------------------
+ bool m_waiting;
-enum wxDragResult
-{
- 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)
+private:
+ // common part of both ctors
+ void SetIcons(const wxIcon& copy,
+ const wxIcon& move,
+ const wxIcon& none);
};
-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 //__GTKDNDH__
projects / wxWidgets.git / blobdiff