mainview.java

一个温度计的小程序

/*
 * MainView - Top level view/controller for the Thermometer
 *
 * This is the main view/controller.
 * Copyright (c) 2001, Bruce E. Wampler
 */

import java.util.*;
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;

public class MainView extends WmvcView
{
    private ThermometerModel myModel; // local model reference

    public MainView()
    {
        myModel = (ThermometerModel) WmvcApp.getModel();
        myModel.addView(this);
        JMenu fileMenu = new JMenu("File");

        // File->Up
        WmvcMenuItemCtl fileUp = new WmvcMenuItemCtl(fileMenu,
            "Up",null, 'U',
             null /* no accel */, new WmvcExecutor()
            {
                public void execute(ActionEvent event)
                {
                    myModel.setTemp(myModel.getTemp()+1);
                }
            });

        // File->Down
        WmvcMenuItemCtl fileDown = new WmvcMenuItemCtl(fileMenu,
            "Down",null, 'D',
            null /* no accel */, new WmvcExecutor()
            {
                public void execute(ActionEvent event)
                {
                    myModel.setTemp(myModel.getTemp()-1);
                }
            });

        // File->Exit
        WmvcMenuItemCtl fileExit = new WmvcMenuItemCtl(fileMenu,
            "Exit", null, 'x',
            null /* no accel */,  new WmvcExecutor()
            {
                public void execute(ActionEvent event)
                {
                    if (WmvcApp.getApp().appClosing())
                      System.exit(0);
                }
            });

        WmvcApp.addMenu(fileMenu);      // Add to app menu

        // ToolBar: Up
        WmvcTBButtonCtl toolUp = new WmvcTBButtonCtl(
            "    Up    ",null,"Up one degree F",
            fileUp.getWmvcExecutor() /* same as file up */);

        // ToolBar: Down
        WmvcTBButtonCtl toolDown = new WmvcTBButtonCtl(
            " Down ",null,"Down one degree F",
            fileDown.getWmvcExecutor() /* same as file up */);
    }
}