imgviewer.java

java看图软件 加入窗口模式 点击无图区实现窗口化

import java.awt.BorderLayout;
import java.awt.Toolkit;

import javax.swing.JFrame;

public class ImgViewer extends JFrame
{
	private static final long serialVersionUID = 248398814717280925L;
	private int screenW,screenH;
	private ImgPane imgp;
	
	public ImgViewer()
	{
		super("ImgViewer");
		Toolkit tk = Toolkit.getDefaultToolkit();
    	screenW=(int) tk.getScreenSize().getWidth();
    	screenH=(int) tk.getScreenSize().getHeight();
		imgp=new ImgPane(screenW,screenH);
		getContentPane().add(imgp,BorderLayout.CENTER);
		
		setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    	setExtendedState(JFrame.MAXIMIZED_BOTH);
    	setSize(800,600);
    	setLocation(screenW/2-400,screenH/2-300);
    	setUndecorated(true); 
    	setVisible(true);
	}
	
	public static void main(String[] args)
	{
		new ImgViewer();
	}
}