+ }
+}
+
+// GTK+ dnd iface
+
+bool wxDataViewCtrlInternal::EnableDragSource( const wxDataFormat &format )
+{
+ wxGtkString atom_str( gdk_atom_name( format ) );
+ m_dragSourceTargetEntryTarget = wxCharBuffer( atom_str );
+
+ m_dragSourceTargetEntry.target = m_dragSourceTargetEntryTarget.data();
+ m_dragSourceTargetEntry.flags = 0;
+ m_dragSourceTargetEntry.info = static_cast<guint>(-1);
+
+ gtk_tree_view_enable_model_drag_source( GTK_TREE_VIEW(m_owner->GtkGetTreeView() ),
+ GDK_BUTTON1_MASK, &m_dragSourceTargetEntry, 1, (GdkDragAction) GDK_ACTION_COPY );
+
+ return true;
+}
+
+bool wxDataViewCtrlInternal::EnableDropTarget( const wxDataFormat &format )
+{
+ wxGtkString atom_str( gdk_atom_name( format ) );
+ m_dropTargetTargetEntryTarget = wxCharBuffer( atom_str );
+
+ m_dropTargetTargetEntry.target = m_dropTargetTargetEntryTarget.data();
+ m_dropTargetTargetEntry.flags = 0;
+ m_dropTargetTargetEntry.info = static_cast<guint>(-1);
+
+ gtk_tree_view_enable_model_drag_dest( GTK_TREE_VIEW(m_owner->GtkGetTreeView() ),
+ &m_dropTargetTargetEntry, 1, (GdkDragAction) GDK_ACTION_COPY );
+
+ return true;
+}
+
+gboolean wxDataViewCtrlInternal::row_draggable( GtkTreeDragSource *WXUNUSED(drag_source),
+ GtkTreePath *path )
+{
+ delete m_dragDataObject;
+ m_dragDataObject = NULL;
+
+ wxDataViewItem item(GetOwner()->GTKPathToItem(path));
+ if ( !item )
+ return FALSE;
+
+ wxDataViewEvent event( wxEVT_COMMAND_DATAVIEW_ITEM_BEGIN_DRAG, m_owner->GetId() );
+ event.SetEventObject( m_owner );
+ event.SetItem( item );
+ event.SetModel( m_wx_model );
+ gint x, y;
+ gtk_widget_get_pointer(m_owner->GtkGetTreeView(), &x, &y);
+ event.SetPosition(x, y);
+ if (!m_owner->HandleWindowEvent( event ))
+ return FALSE;
+
+ if (!event.IsAllowed())
+ return FALSE;
+
+ wxDataObject *obj = event.GetDataObject();
+ if (!obj)
+ return FALSE;
+
+ m_dragDataObject = obj;
+
+ return TRUE;
+}
+
+gboolean
+wxDataViewCtrlInternal::drag_data_delete(GtkTreeDragSource *WXUNUSED(drag_source),
+ GtkTreePath *WXUNUSED(path))
+{
+ return FALSE;
+}
+
+gboolean wxDataViewCtrlInternal::drag_data_get( GtkTreeDragSource *WXUNUSED(drag_source),
+ GtkTreePath *path, GtkSelectionData *selection_data )
+{
+ wxDataViewItem item(GetOwner()->GTKPathToItem(path));
+ if ( !item )
+ return FALSE;
+
+ GdkAtom target = gtk_selection_data_get_target(selection_data);
+ if (!m_dragDataObject->IsSupported(target))
+ return FALSE;
+
+ size_t size = m_dragDataObject->GetDataSize(target);
+ if (size == 0)
+ return FALSE;
+
+ void *buf = malloc( size );
+
+ gboolean res = FALSE;
+ if (m_dragDataObject->GetDataHere(target, buf))
+ {
+ res = TRUE;
+
+ gtk_selection_data_set(selection_data, target,
+ 8, (const guchar*) buf, size );
+ }
+
+ free( buf );
+
+ return res;
+}
+
+gboolean
+wxDataViewCtrlInternal::drag_data_received(GtkTreeDragDest *WXUNUSED(drag_dest),
+ GtkTreePath *path,
+ GtkSelectionData *selection_data)
+{
+ wxDataViewItem item(GetOwner()->GTKPathToItem(path));
+ if ( !item )
+ return FALSE;
+
+ wxDataViewEvent event( wxEVT_COMMAND_DATAVIEW_ITEM_DROP, m_owner->GetId() );
+ event.SetEventObject( m_owner );
+ event.SetItem( item );
+ event.SetModel( m_wx_model );
+ event.SetDataFormat(gtk_selection_data_get_target(selection_data));
+ event.SetDataSize(gtk_selection_data_get_length(selection_data));
+ event.SetDataBuffer(const_cast<guchar*>(gtk_selection_data_get_data(selection_data)));
+ if (!m_owner->HandleWindowEvent( event ))
+ return FALSE;
+
+ if (!event.IsAllowed())
+ return FALSE;
+
+ return TRUE;
+}
+
+gboolean
+wxDataViewCtrlInternal::row_drop_possible(GtkTreeDragDest *WXUNUSED(drag_dest),
+ GtkTreePath *path,
+ GtkSelectionData *selection_data)
+{
+ wxDataViewItem item(GetOwner()->GTKPathToItem(path));
+ if ( !item )
+ return FALSE;
+
+ wxDataViewEvent event( wxEVT_COMMAND_DATAVIEW_ITEM_DROP_POSSIBLE, m_owner->GetId() );
+ event.SetEventObject( m_owner );
+ event.SetItem( item );
+ event.SetModel( m_wx_model );
+ event.SetDataFormat(gtk_selection_data_get_target(selection_data));
+ event.SetDataSize(gtk_selection_data_get_length(selection_data));
+ if (!m_owner->HandleWindowEvent( event ))
+ return FALSE;
+
+ if (!event.IsAllowed())
+ return FALSE;
+
+ return TRUE;
+}
+
+// notifications from wxDataViewModel
+
+bool wxDataViewCtrlInternal::Cleared()
+{
+ if (m_root)
+ {
+ delete m_root;
+ m_root = NULL;
+ }
+
+ InitTree();
+
+ ScheduleRefresh();
+
+ return true;
+}
+
+void wxDataViewCtrlInternal::Resort()
+{
+ if (!m_wx_model->IsVirtualListModel())
+ m_root->Resort();
+
+ ScheduleRefresh();
+}
+
+bool wxDataViewCtrlInternal::ItemAdded( const wxDataViewItem &parent, const wxDataViewItem &item )
+{
+ if (!m_wx_model->IsVirtualListModel())
+ {
+ wxGtkTreeModelNode *parent_node = FindNode( parent );
+ wxCHECK_MSG(parent_node, false,
+ "Did you forget a call to ItemAdded()? The parent node is unknown to the wxGtkTreeModel");
+
+ wxDataViewItemArray modelSiblings;
+ m_wx_model->GetChildren(parent, modelSiblings);
+ const int modelSiblingsSize = modelSiblings.size();
+
+ int posInModel = modelSiblings.Index(item, /*fromEnd=*/true);
+ wxCHECK_MSG( posInModel != wxNOT_FOUND, false, "adding non-existent item?" );
+
+ const wxGtkTreeModelChildren& nodeSiblings = parent_node->GetChildren();
+ const int nodeSiblingsSize = nodeSiblings.size();
+
+ int nodePos = 0;
+
+ if ( posInModel == modelSiblingsSize - 1 )
+ {
+ nodePos = nodeSiblingsSize;
+ }
+ else if ( modelSiblingsSize == nodeSiblingsSize + 1 )
+ {
+ // This is the simple case when our node tree already matches the
+ // model and only this one item is missing.
+ nodePos = posInModel;
+ }
+ else
+ {
+ // It's possible that a larger discrepancy between the model and
+ // our realization exists. This can happen e.g. when adding a bunch
+ // of items to the model and then calling ItemsAdded() just once
+ // afterwards. In this case, we must find the right position by
+ // looking at sibling items.
+
+ // append to the end if we won't find a better position:
+ nodePos = nodeSiblingsSize;
+
+ for ( int nextItemPos = posInModel + 1;
+ nextItemPos < modelSiblingsSize;
+ nextItemPos++ )
+ {
+ int nextNodePos = parent_node->FindChildByItem(modelSiblings[nextItemPos]);
+ if ( nextNodePos != wxNOT_FOUND )
+ {
+ nodePos = nextNodePos;
+ break;
+ }
+ }
+ }
projects / wxWidgets.git / blobdiff