awt/swing实现超链接的自定义控件

1、awc/swing实现超链接的自定义控件

public class HFLinkLabel extends JLabel {
	
	private static final long serialVersionUID = -4533897048399372238L;
	public String text, url;
	private boolean isSupported;
	public HFLinkLabel() {
		
	}
	public HFLinkLabel(String text, String url) {
		this.text = text;
		this.url = url;
		try {
			this.isSupported = Desktop.isDesktopSupported()
			&& Desktop.getDesktop().isSupported(Desktop.Action.BROWSE);
		} catch (Exception e) {
			this.isSupported = false;
		}
		setText(false);
		addMouseListener(new MouseAdapter() {
			public void mouseEntered(MouseEvent e) {
				setText(isSupported);
				if (isSupported)
				setCursor(new Cursor(Cursor.HAND_CURSOR));
			}
			public void mouseExited(MouseEvent e) {
				setText(false);
			}
			public void mouseClicked(MouseEvent e) {
				try {
					Desktop.getDesktop().browse(
					new java.net.URI(HFLinkLabel.this.url));
				}catch (Exception ex) {
				}
			}
		});
	}
	public void setText(boolean b) {
		if (!b) {
			setText("<html><font color=blue><u>" + text);
		}else {
			setText("<html><font color=red><u>" + text);
		}
	}
	
	public void setLinkText(String text,boolean b) {
		if (!b) {
			setText("<html><font color=blue><u>" + text);
		}else {
			setText("<html><font color=red><u>" + text);
		}
	}
	
	public static void main(String[] args) {
		JFrame jf = new JFrame("一个超链接实现的例子");
		JPanel jp = new JPanel();
		jp.add(new HFLinkLabel("访问eRedLab", "http://hi.baidu.com/eRedLab"));
		jf.setContentPane(jp);
		jf.pack();
		jf.setVisible(true);
	}
	
}

　　转自：基于Java Swing的超链接标签 (ngui.cc)

posted @ 2023-01-04 17:10  信铁寒胜  阅读(103)  评论(0)    收藏  举报