remove unused variables, minor cleanup

[wxWidgets.git] / include / wx / gtk / dnd.h

diff --git a/include/wx/gtk/dnd.h b/include/wx/gtk/dnd.h
index e6e45f03a866f9014fab17d79e8afc98b1f6e889..30e356ee61898f3a7fc84161f0601bcb27709dfb 100644 (file)
--- a/include/wx/gtk/dnd.h
+++ b/include/wx/gtk/dnd.h
@@ -4,97 +4,87 @@
 // 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__
-
-#ifdef __GNUG__
-#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 wxWindow;
+// ----------------------------------------------------------------------------
+// macros
+// ----------------------------------------------------------------------------
 
-class wxDropTarget;
-class wxTextDropTarget;
-class wxFileDropTarget;
-
-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)
 
 //-------------------------------------------------------------------------
 // wxDropTarget
 //-------------------------------------------------------------------------
 
-class wxDropTarget: public wxDropTargetBase
+class WXDLLIMPEXP_CORE wxDropTarget: public wxDropTargetBase
 {
 public:
-    wxDropTarget(wxDataObject *dataObject = (wxDataObject*) NULL );
+    wxDropTarget(wxDataObject *dataObject = 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
+    // Can only be called during OnXXX methods.
+    wxDataFormat GetMatchingPair();
+
+    // implementation
 
-    GdkAtom GetMatchingPair();
+    GdkAtom GTKGetMatchingPair(bool quiet = false);
+    wxDragResult GTKFigureOutSuggestedAction();
 
-    void RegisterWidget( GtkWidget *widget );
-    void UnregisterWidget( GtkWidget *widget );
+    void GtkRegisterWidget( GtkWidget *widget );
+    void GtkUnregisterWidget( GtkWidget *widget );
 
     GdkDragContext     *m_dragContext;
     GtkWidget          *m_dragWidget;
     GtkSelectionData   *m_dragData;
     guint               m_dragTime;
-    bool                m_firstMotion;     /* gdk has no "gdk_drag_enter" event */
+    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; }
+    void GTKSetDragContext( GdkDragContext *dc ) { m_dragContext = dc; }
+    void GTKSetDragWidget( GtkWidget *w ) { m_dragWidget = w; }
+    void GTKSetDragData( GtkSelectionData *sd ) { m_dragData = sd; }
+    void GTKSetDragTime( guint time ) { m_dragTime = time; }
 };
 
 //-------------------------------------------------------------------------
 // wxDropSource
 //-------------------------------------------------------------------------
 
-class wxDropSource: public wxDropSourceBase
+class WXDLLIMPEXP_CORE wxDropSource: public wxDropSourceBase
 {
 public:
-    /* constructor. set data later with SetData() */
-    wxDropSource( wxWindow *win = (wxWindow *)NULL,
-                  const wxIcon &go = wxNullIcon );
+    // constructor. set data later with SetData()
+    wxDropSource( wxWindow *win = NULL,
+                  const wxIcon &copy = wxNullIcon,
+                  const wxIcon &move = wxNullIcon,
+                  const wxIcon &none = wxNullIcon);
 
-    /* constructor for setting one data object */
+    // constructor for setting one data object
     wxDropSource( wxDataObject& data,
                   wxWindow *win,
-                  const wxIcon &go = wxNullIcon );
-
-    ~wxDropSource();
+                  const wxIcon &copy = wxNullIcon,
+                  const wxIcon &move = wxNullIcon,
+                  const wxIcon &none = wxNullIcon);
 
-    /* start drag action */
-    virtual wxDragResult DoDragDrop( bool bAllowMove = FALSE );
+    virtual ~wxDropSource();
 
-    /* GTK implementation */
-    void RegisterWindow();
-    void UnregisterWindow();
+    // start drag action
+    virtual wxDragResult DoDragDrop(int flags = wxDrag_CopyOnly);
 
-    void PrepareIcon( int hot_x, int hot_y, GdkDragContext *context );
+    void PrepareIcon( int action, GdkDragContext *context );
 
     GtkWidget       *m_widget;
     GtkWidget       *m_iconWindow;
@@ -102,15 +92,23 @@ public:
     wxWindow        *m_window;
 
     wxDragResult     m_retValue;
-    wxIcon           m_icon;
+    wxIcon           m_iconCopy,
+                     m_iconMove,
+                     m_iconNone;
 
     bool             m_waiting;
-};
 
-#endif
+private:
+    // common part of both ctors
+    void SetIcons(const wxIcon& copy,
+                  const wxIcon& move,
+                  const wxIcon& none);
+
+    // GTK implementation
+    void GTKConnectDragSignals();
+    void GTKDisconnectDragSignals();
 
-   // wxUSE_DRAG_AND_DROP
+};
 
-#endif
-       //__GTKDNDH__
+#endif // _WX_GTK_DND_H_