movelayerdownaction.java

tiled地图编辑器是2d的,很不错的国外软件,使用起来很方便的

/*
 *  Tiled Map Editor, (c) 2004-2006
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or
 *  (at your option) any later version.
 *
 *  Adam Turk <[e-mail]>
 *  Bjorn Lindeijer <[e-mail]>
 */

package tiled.mapeditor.actions;

import javax.swing.KeyStroke;

import tiled.mapeditor.MapEditor;
import tiled.mapeditor.Resources;
import tiled.core.Map;

/**
 * Swaps the currently selected layer with the layer below.
 *
 * @version $Id: MoveLayerDownAction.java 683 2006-06-25 14:17:37Z bjorn $
 */
public class MoveLayerDownAction extends AbstractLayerAction
{
    public MoveLayerDownAction(MapEditor editor) {
        super(editor,
              Resources.getString("action.layer.movedown.name"),
              Resources.getString("action.layer.movedown.tooltip"),
              Resources.getIcon("gnome-down.png"));

        putValue(ACCELERATOR_KEY, KeyStroke.getKeyStroke("shift PAGE_DOWN"));
    }

    protected void doPerformAction() {
        Map map = editor.getCurrentMap();
        int layerIndex = editor.getCurrentLayerIndex();

        if (layerIndex > 0) {
            map.swapLayerDown(layerIndex);
            editor.setCurrentLayer(layerIndex - 1);
        }
    }
}