【Gloomyfish】Java Swing 实现实际大小到全屏切换

最新推荐文章于 2023-05-05 13:43:48 发布

最新推荐文章于 2023-05-05 13:43:48 发布 · 176 阅读

文章标签：

#java

本文介绍了一个实用的Java工具类FullScreenViewer，该类能够帮助开发者轻松地将任意JPanel组件以全屏模式展示。通过两种不同的方法实现全屏效果，并提供了详细的代码实现。

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...