removing dependancy on mac headers from public wx headers (eventually adding wx/mac...

[wxWidgets.git] / src / gtk1 / dnd.cpp

diff --git a/src/gtk1/dnd.cpp b/src/gtk1/dnd.cpp
index a041507bf0fd7c839fc062ea9117bc09efc72fd7..5d4111c304504f143a1528ded43805aa478e8d3d 100644 (file)
--- a/src/gtk1/dnd.cpp
+++ b/src/gtk1/dnd.cpp
@@ -50,6 +50,11 @@ extern void wxapp_uninstall_thread_wakeup();
 
 extern bool g_blockEventsOnDrag;
 
+// the trace mask we use with wxLogTrace() - call
+// wxLog::AddTraceMask(TRACE_DND) to enable the trace messages from here
+// (there are quite a few of them, so don't enable this by default)
+static const wxChar *TRACE_DND = _T("dnd");
+
 //----------------------------------------------------------------------------
 // standard icons
 //----------------------------------------------------------------------------
@@ -150,6 +155,8 @@ static gboolean target_drag_motion( GtkWidget *WXUNUSED(widget),
     wxDragResult result;
     if ( context->suggested_action == GDK_ACTION_COPY )
         result = wxDragCopy;
+    else if ( context->suggested_action == GDK_ACTION_LINK )
+        result = wxDragLink;
     else
         result = wxDragMove;
 
@@ -170,6 +177,8 @@ static gboolean target_drag_motion( GtkWidget *WXUNUSED(widget),
         GdkDragAction action;
         if (result == wxDragCopy)
             action = GDK_ACTION_COPY;
+        else if (result == wxDragLink)
+            action = GDK_ACTION_LINK;
         else
             action = GDK_ACTION_MOVE;
 
@@ -226,11 +235,16 @@ static gboolean target_drag_drop( GtkWidget *widget,
     if (context->suggested_action == GDK_ACTION_COPY) result = wxDragCopy;
 */
 
+    /* reset the block here as someone might very well
+       show a dialog as a reaction to a drop and this
+       wouldn't work without events */
+    g_blockEventsOnDrag = FALSE;
+
     bool ret = drop_target->OnDrop( x, y );
 
     if (!ret)
     {
-        wxLogDebug( wxT( "Drop target: OnDrop returned FALSE") );
+        wxLogTrace(TRACE_DND, wxT( "Drop target: OnDrop returned FALSE") );
 
         /* cancel the whole thing */
         gtk_drag_finish( context,
@@ -240,7 +254,7 @@ static gboolean target_drag_drop( GtkWidget *widget,
     }
     else
     {
-        wxLogDebug( wxT( "Drop target: OnDrop returned TRUE") );
+        wxLogTrace(TRACE_DND, wxT( "Drop target: OnDrop returned TRUE") );
 
 #if wxUSE_THREADS
         /* disable GUI threads */
@@ -306,7 +320,7 @@ static void target_drag_data_received( GtkWidget *WXUNUSED(widget),
         return;
     }
 
-    wxLogDebug( wxT( "Drop target: data received event") );
+    wxLogTrace(TRACE_DND, wxT( "Drop target: data received event") );
 
     /* inform the wxDropTarget about the current GtkSelectionData.
        this is only valid for the duration of this call */
@@ -315,19 +329,21 @@ static void target_drag_data_received( GtkWidget *WXUNUSED(widget),
     wxDragResult result;
     if ( context->suggested_action == GDK_ACTION_COPY )
         result = wxDragCopy;
+    else if ( context->suggested_action == GDK_ACTION_LINK )
+        result = wxDragLink;
     else
         result = wxDragMove;
 
     if ( wxIsDragResultOk( drop_target->OnData( x, y, result ) ) )
     {
-        wxLogDebug( wxT( "Drop target: OnData returned TRUE") );
+        wxLogTrace(TRACE_DND, wxT( "Drop target: OnData returned TRUE") );
 
         /* tell GTK that data transfer was successfull */
         gtk_drag_finish( context, TRUE, FALSE, time );
     }
     else
     {
-        wxLogDebug( wxT( "Drop target: OnData returned FALSE") );
+        wxLogTrace(TRACE_DND, wxT( "Drop target: OnData returned FALSE") );
 
         /* tell GTK that data transfer was not successfull */
         gtk_drag_finish( context, FALSE, FALSE, time );
@@ -401,7 +417,8 @@ GdkAtom wxDropTarget::GetMatchingPair()
         wxDataFormat format( formatAtom );
 
 #ifdef __WXDEBUG__
-        wxLogDebug( wxT("Drop target: drag has format: %s"), format.GetId().c_str() );
+        wxLogTrace(TRACE_DND, wxT("Drop target: drag has format: %s"),
+                   format.GetId().c_str());
 #endif // Debug
 
         if (m_dataObject->IsSupportedFormat( format ))
@@ -499,7 +516,8 @@ source_drag_data_get  (GtkWidget          *WXUNUSED(widget),
 
     wxDataFormat format( selection_data->target );
 
-    wxLogDebug( wxT("Drop source: format requested: %s"), format.GetId().c_str() );
+    wxLogTrace(TRACE_DND, wxT("Drop source: format requested: %s"),
+               format.GetId().c_str());
 
     drop_source->m_retValue = wxDragCancel;
 
@@ -507,19 +525,19 @@ source_drag_data_get  (GtkWidget          *WXUNUSED(widget),
 
     if (!data)
     {
-        wxLogDebug( wxT("Drop source: no data object") );
+        wxLogTrace(TRACE_DND, wxT("Drop source: no data object") );
         return;
     }
 
     if (!data->IsSupportedFormat(format))
     {
-        wxLogDebug( wxT("Drop source: unsupported format") );
+        wxLogTrace(TRACE_DND, wxT("Drop source: unsupported format") );
         return;
     }
 
     if (data->GetDataSize(format) == 0)
     {
-        wxLogDebug( wxT("Drop source: empty data") );
+        wxLogTrace(TRACE_DND, wxT("Drop source: empty data") );
         return;
     }
 
@@ -558,9 +576,9 @@ source_drag_data_get  (GtkWidget          *WXUNUSED(widget),
 // "drag_data_delete"
 //----------------------------------------------------------------------------
 
-static void source_drag_data_delete( GtkWidget          *WXUNUSED(widget),
-                                     GdkDragContext     *WXUNUSED(context),
-                                     wxDropSource       *WXUNUSED(drop_source) )
+static void source_drag_data_delete( GtkWidget *WXUNUSED(widget),
+                                     GdkDragContext *context,
+                                     wxDropSource *WXUNUSED(drop_source) )
 {
     if (g_isIdle)
         wxapp_install_idle_handler();
@@ -609,6 +627,7 @@ gtk_dnd_window_configure_callback( GtkWidget *WXUNUSED(widget), GdkEventConfigur
 
     wxDragResult action = wxDragNone;
     if (source->m_dragContext->action == GDK_ACTION_COPY) action = wxDragCopy;
+    if (source->m_dragContext->action == GDK_ACTION_LINK) action = wxDragLink;
     if (source->m_dragContext->action == GDK_ACTION_MOVE) action = wxDragMove;
 
     source->GiveFeedback( action );
@@ -702,14 +721,18 @@ void wxDropSource::PrepareIcon( int action, GdkDragContext *context )
     gdk_window_get_size (pixmap, &width, &height);
 
     GdkColormap *colormap = gtk_widget_get_colormap( m_widget );
+#ifndef __WXGTK20__
     gtk_widget_push_visual (gdk_colormap_get_visual (colormap));
+#endif
     gtk_widget_push_colormap (colormap);
 
     m_iconWindow = gtk_window_new (GTK_WINDOW_POPUP);
     gtk_widget_set_events (m_iconWindow, GDK_BUTTON_PRESS_MASK | GDK_BUTTON_RELEASE_MASK);
     gtk_widget_set_app_paintable (GTK_WIDGET (m_iconWindow), TRUE);
 
+#ifndef __WXGTK20__
     gtk_widget_pop_visual ();
+#endif
     gtk_widget_pop_colormap ();
 
     gtk_widget_set_usize (m_iconWindow, width, height);
@@ -736,8 +759,12 @@ wxDragResult wxDropSource::DoDragDrop( bool allowMove )
     if (m_data->GetFormatCount() == 0)
         return (wxDragResult) wxDragNone;
 
+    // still in drag
+    if (g_blockEventsOnDrag)
+        return (wxDragResult) wxDragNone;
+
     // disabled for now
-    g_blockEventsOnDrag = FALSE;
+    g_blockEventsOnDrag = TRUE;
 
     RegisterWindow();
 
@@ -750,7 +777,7 @@ wxDragResult wxDropSource::DoDragDrop( bool allowMove )
     for (size_t i = 0; i < m_data->GetFormatCount(); i++)
     {
         GdkAtom atom = array[i];
-        wxLogDebug( wxT("Drop source: Supported atom %s"), gdk_atom_name( atom ) );
+        wxLogTrace(TRACE_DND, wxT("Drop source: Supported atom %s"), gdk_atom_name( atom ));
         gtk_target_list_add( target_list, atom, 0, 0 );
     }
     delete[] array;
@@ -780,11 +807,12 @@ wxDragResult wxDropSource::DoDragDrop( bool allowMove )
     /* don't start dragging if no button is down */
     if (button_number)
     {
-        GdkDragAction action = GDK_ACTION_COPY;
-        if (allowMove) action = (GdkDragAction)(GDK_ACTION_MOVE|GDK_ACTION_COPY);
+        int action = GDK_ACTION_COPY;
+        if ( allowMove )
+            action |= GDK_ACTION_MOVE;
         GdkDragContext *context = gtk_drag_begin( m_widget,
                 target_list,
-                action,
+                (GdkDragAction)action,
                 button_number,  /* number of mouse button which started drag */
                 (GdkEvent*) &event );
 
@@ -796,6 +824,8 @@ wxDragResult wxDropSource::DoDragDrop( bool allowMove )
 
         if (context->action == GDK_ACTION_COPY)
             m_retValue = wxDragCopy;
+        if (context->action == GDK_ACTION_LINK)
+            m_retValue = wxDragLink;
         if (context->action == GDK_ACTION_MOVE)
             m_retValue = wxDragMove;
     }