editaction.java

来自「一个简易的java画图软件」· Java 代码 · 共 100 行

package app.action;

import java.awt.event.ActionEvent;

import draw.PaintCanvas;

/**
 * 抽象类，Edit菜单的菜单项的Action的基类
 * 
 * @author Thihy
 * 
 */
public abstract class EditAction extends PaintAction {
	public EditAction() {
		this(null);
	}

	public EditAction(String id) {
		super(id);
	}

	/**
	 * 剪切Action
	 * 
	 * @author Thihy
	 * 
	 */
	public static class CutAction extends FileAction {
		public CutAction() {
			super("CutAction");
			setEnabled(true);
		}

		@Override
		public void actionPerformed(ActionEvent e) {
			app.getDraw().cutCurrentFiguare();
		}

	}

	/**
	 * 复制Action
	 * 
	 * @author Thihy
	 * 
	 */
	public static class CopyAction extends FileAction {
		public CopyAction() {
			super("CopyAction");
			setEnabled(true);
		}

		@Override
		public void actionPerformed(ActionEvent e) {
			app.getDraw().copyCurrentFiguare();
		}

	}

	/**
	 * 粘贴Action
	 * 
	 * @author Thihy
	 * 
	 */
	public static class PasteAction extends FileAction {
		public PasteAction() {
			super("PasteAction");
			setEnabled(true);
		}

		@Override
		public void actionPerformed(ActionEvent e) {
			app.getDraw().pasteCurrentFiguare();
		}

	}
	/**
	 * 删除Action
	 * 
	 * @author Thihy
	 * 
	 */
	public static class DelAction extends FileAction {
		public DelAction() {
			super("DelAction");
			setEnabled(true);
		}

		@Override
		public void actionPerformed(ActionEvent e) {
			try{
				PaintCanvas gbc = app.getDraw().getCurrentView().getCanvas();
				gbc.delCurrentFiguare();
			}
			catch (NullPointerException evt){}
		}

	}
}