temperatureview.java

一个简单的浏览器

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

public class TemperatureView extends WmvcView{
	private JPanel myPanel;
	private ThermometerModel myModel;
	private char myScale;
	
	private static JLabel labelf=new JLabel("Fahrenheit:");
	private static JLabel labelc=new JLabel("Celsius:");
	private JLabel fldTemp;
	
	public JPanel getPanel(){
		return myPanel;
	}
	
	public TemperatureView(char scale){
		myModel=(ThermometerModel)Thermometer.getModel();
		myModel.addView(this);
		
		myScale=scale;
		myPanel=new JPanel();
		myPanel.setPreferredSize(new Dimension(390,40));
		
		if(scale=='F'||scale=='f'){
			myPanel.add(labelf);
		}else{
			myPanel.add(labelc);
		}
		fldTemp=new JLabel("");
		fldTemp.setForeground(Color.black);
		myPanel.add(fldTemp);
	}
	
	public void updateView(){
		int val=myModel.getTemp();
		if(myScale=='C')
			val=(int)(((double)(val-32))/1.8);
		fldTemp.setText(Integer.toString(val));	
	}
}