| /******************************************************************************* |
| * Copyright (c) 2012, 2020 Original authors and others. |
| * |
| * This program and the accompanying materials are made |
| * available under the terms of the Eclipse Public License 2.0 |
| * which is available at https://www.eclipse.org/legal/epl-2.0/ |
| * |
| * SPDX-License-Identifier: EPL-2.0 |
| * |
| * Contributors: |
| * Original authors and others - initial API and implementation |
| ******************************************************************************/ |
| package org.eclipse.nebula.widgets.nattable.layer.event; |
| |
| import java.util.Collection; |
| |
| import org.eclipse.nebula.widgets.nattable.layer.ILayer; |
| import org.eclipse.swt.graphics.Rectangle; |
| |
| /** |
| * An event which indicates a visible change to one or more cells in the layer. |
| * A visible change simply indicates that one or more cells should be redrawn. |
| * It does not imply a structural change to the layer. This means that cached |
| * structure does not need to be invalidated due to visible change events. |
| */ |
| public interface IVisualChangeEvent extends ILayerEvent { |
| |
| /** |
| * @return the layer that the visible change event is originating from. |
| */ |
| public ILayer getLayer(); |
| |
| /** |
| * @return the position rectangles that have changed and need to be redrawn. |
| * If no rectangles are returned, then the receiver should assume |
| * that the entire layer is changed and will need to be redrawn. |
| */ |
| public Collection<Rectangle> getChangedPositionRectangles(); |
| |
| } |