【Gloomyfish】Java Swing 实现实际大小到全屏切换

Summary:

just provide any JPanel which you want to make it diaplay as full screen mode, it's very helpful for you

to use this utility class.

package com.gloomyfish.smtp.client;  import java.awt.BorderLayout; import java.awt.Container; import java.awt.Dimension; import java.awt.FlowLayout; import java.awt.Frame; import java.awt.GraphicsDevice; import java.awt.GraphicsEnvironment; import java.awt.Toolkit; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import javax.swing.JButton; import javax.swing.JDialog; import javax.swing.JPanel;  /**  * @author gloomy fish  * @date 2011-03-03  */ public class FullScreenViewer { 	private Dimension size; 	private JPanel sourcePanel; 	private JPanel buttonsPanel; 	private JButton exitBtn;  	/** 	 *  	 display any JComponent as full screen, need to pass in root Container 	 *  	 * invoke swing graphic utility tool, it's a bug!! when double buffer image 	 * JFreechart * @param JFrame rootComponent 	 */ 	public void showFullScreenOne(Frame rootComponent) { 		final JDialog dialog = new JDialog(rootComponent, true); 		dialog.getContentPane().setLayout(new BorderLayout()); 		final Container parent = sourcePanel.getParent(); 		dialog.getContentPane().add(sourcePanel, BorderLayout.CENTER); 		dialog.getContentPane().add(buttonsPanel, BorderLayout.SOUTH); 		dialog.setUndecorated(true); 		exitBtn.addActionListener(new ActionListener() { 			@Override 			public void actionPerformed(ActionEvent e) { 				dialog.setVisible(false); 			} 		}); 		GraphicsEnvironment ge = GraphicsEnvironment 				.getLocalGraphicsEnvironment(); 		GraphicsDevice gd = ge.getDefaultScreenDevice(); 		if (gd.isFullScreenSupported()) { 			try { 				gd.setFullScreenWindow(dialog); 			} finally { 				gd.setFullScreenWindow(null); 				dialog.dispose(); 				if (parent != null) { 					sourcePanel.setSize(size); 					parent.add(sourcePanel); 				} 			} 		} 	}  	/** 	 * * it's a bug!! when double buffer image JFreechart 	 *  	 * @param owner 	 */ 	public void showFullScreenTwo(Frame owner) { 		final JDialog dialog = new JDialog(owner, true); 		dialog.getContentPane().setLayout(new BorderLayout()); 		final Container parent = sourcePanel.getParent(); 		dialog.getContentPane().add(sourcePanel, BorderLayout.CENTER); 		dialog.getContentPane().add(buttonsPanel, BorderLayout.SOUTH); 		exitBtn.addActionListener(new ActionListener() { 			@Override 			public void actionPerformed(ActionEvent e) { 				dialog.setVisible(false); 				dialog.dispose(); 				if (parent != null) { 					sourcePanel.setSize(size); 					parent.add(sourcePanel); 				} 			} 		}); 		Toolkit tk = Toolkit.getDefaultToolkit(); 		int xSize = ((int) tk.getScreenSize().getWidth()); 		int ySize = ((int) tk.getScreenSize().getHeight()); 		dialog.setUndecorated(true); 		dialog.setSize(xSize, ySize); 		dialog.setResizable(false); 		dialog.setVisible(true); 		dialog.toFront(); 	}  	public FullScreenViewer(JPanel sourcePanel) { 		this.sourcePanel = sourcePanel; 		initComponents(); 	}  	private void initComponents() { 		exitBtn = new JButton("Exit"); 		buttonsPanel = new JPanel(); 		buttonsPanel.setLayout(new FlowLayout(FlowLayout.CENTER)); 		buttonsPanel.add(exitBtn); 		size = new Dimension(sourcePanel.getSize().width, 				sourcePanel.getSize().height); 	} }

PS:

There is an potential problem in above code implementation, just contact me

if you found this issue as well...