DecrementCommand.java

/*
 * Copyright (c) 1998-2017 by Richard A. Wilkes. All rights reserved.
 *
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, version 2.0. If a copy of the MPL was not distributed with
 * this file, You can obtain one at http://mozilla.org/MPL/2.0/.
 *
 * This Source Code Form is "Incompatible With Secondary Licenses", as
 * defined by the Mozilla Public License, version 2.0.
 */

package com.trollworks.gcs.menu.edit;

import com.trollworks.toolkit.annotation.Localize;
import com.trollworks.toolkit.ui.menu.Command;
import com.trollworks.toolkit.ui.widget.outline.OutlineProxy;
import com.trollworks.toolkit.utility.Localization;

import java.awt.Component;
import java.awt.event.ActionEvent;
import java.awt.event.KeyEvent;

/** Provides the "Decrement" command. */
public class DecrementCommand extends Command {
	@Localize("Decrement")
	@Localize(locale = "de", value = "Verringern")
	@Localize(locale = "ru", value = "Уменьшить")
	@Localize(locale = "es", value = "Disminuir")
	private static String DECREMENT;

	static {
		Localization.initialize();
	}

	/** The action command this command will issue. */
	public static final String				CMD_DECREMENT	= "Decrement";				//$NON-NLS-1$

	/** The singleton {@link DecrementCommand}. */
	public static final DecrementCommand	INSTANCE		= new DecrementCommand();

	private DecrementCommand() {
		super(DECREMENT, CMD_DECREMENT, KeyEvent.VK_MINUS);
	}

	@Override
	public void adjust() {
		Component focus = getFocusOwner();
		if (focus instanceof OutlineProxy) {
			focus = ((OutlineProxy) focus).getRealOutline();
		}
		if (focus instanceof Incrementable) {
			Incrementable inc = (Incrementable) focus;
			setTitle(inc.getDecrementTitle());
			setEnabled(inc.canDecrement());
		} else {
			setTitle(DECREMENT);
			setEnabled(false);
		}
	}

	@Override
	public void actionPerformed(ActionEvent event) {
		Component focus = getFocusOwner();
		if (focus instanceof OutlineProxy) {
			focus = ((OutlineProxy) focus).getRealOutline();
		}
		((Incrementable) focus).decrement();
	}
}