zcmdadd.java

来自「用Java写的报表.功能如下: 0.内建网络打印,网络预览功能！ 1.文件操作。」· Java 代码 · 共 61 行

/*
 * Copyright 2002 EZCell , Inc. All rights reserved.
 * Version  1.0.
 * Author   W.John
 */
package ezcell;

import java.util.Enumeration;
import java.util.Vector;


/**
 * put your documentation comment here
 */
class ZCmdAdd extends ZCmdFormat {
    Vector objects;

    /**
    * put your documentation comment here
    * @param         ZDefaultSheet sheet
    * @param         Vector objects
    */
    public ZCmdAdd(ZDefaultSheet sheet, Vector objects) {
        super(sheet, null, 0, null, null);
        this.objects = objects;
    }

    /**
    * put your documentation comment here
    */
    public void redo() {
        Enumeration enum = objects.elements();

        while (enum.hasMoreElements()) {
            ZBase obj = (ZBase) enum.nextElement();
            sheet.add(obj);
        }

        sheet.fireObjectsAdded(this, false);
    }

    /**
    * put your documentation comment here
    */
    public void undo() {
        Enumeration enum = objects.elements();

        while (enum.hasMoreElements()) {
            ZBase obj = (ZBase) enum.nextElement();
            sheet.remove(obj);
        }

        sheet.fireObjectsAdded(this, true);
    }

    /**
    * put your documentation comment here
    */
    void save() {
    }
}