2012-03-22 20:13:56|?次阅读|上传:wustguangh【已有?条评论】发表评论
关键词:Java, 界面设计, Swing|来源:唯设编程网
最近使用Java进行客户端编程,使用了大量的Swing控件,由于系统默认的边框无法满足项目的要求,不得不自己更改控件的边框样式,网上找了不少资料,本文对Swing编程边框(Border)的用法进行归纳,以便有着同样需求的朋友参考。
Swing客户端程序中的控件调用setBorder可以设置边框,setBorder是JComponent类的成员方法,其函数原型如下:
public void setBorder(Border border)
参数:
border
- 要为此组件呈现的边框
对参数Border对象的定义主要通过BorderFactory进行,这也是本文讨论的重点,根据API的解释:BorderFactory提供标准 Border
对象的工厂类。在任何可能的地方,此工厂类都将提供对已共享 Border
实例的引用。下面讨论具体的应用方法:
1. 首先展示程序的运行效果:
2. 下面列出程序的完整实现代码:
Java示例:package Test; import java.awt.*; import javax.swing.*; import javax.swing.border.*; public class BorderDemo { public static void main(String[] args) { JFrame frame = new JFrame("Swing边框演示"); frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); JPanel panel = new JPanel(); panel.setLayout(new GridLayout(0, 2, 5, 10)); panel.setBorder(BorderFactory.createEmptyBorder(5, 5, 5, 5)); JButton p1 = new JButton(); p1.setBorder(BorderFactory.createLineBorder(Color.red, 3)); p1.add(new JLabel("线边框")); panel.add(p1); JPanel p2 = new JPanel(); p2.setBorder(BorderFactory.createEtchedBorder()); p2.add(new JLabel("蚀刻边框")); panel.add(p2); JPanel p3 = new JPanel(); p3.setBorder(BorderFactory.createRaisedBevelBorder()); p3.add(new JLabel("斜面边框(凸)")); panel.add(p3); JPanel p4 = new JPanel(); p4.setBorder(BorderFactory.createLoweredBevelBorder()); p4.add(new JLabel("斜面边框(凹)")); panel.add(p4); JPanel p5 = new JPanel(); p5.setBorder(BorderFactory.createTitledBorder("标题")); p5.add(new JLabel("标题边框")); panel.add(p5); JPanel p6 = new JPanel(); TitledBorder tb = BorderFactory.createTitledBorder("标题"); tb.setTitleJustification(TitledBorder.RIGHT); p6.setBorder(tb); p6.add(new JLabel("标签边框(右)")); panel.add(p6); JPanel p7 = new JPanel(); p7.setBorder(BorderFactory.createMatteBorder(1, 5, 1, 1, Color.yellow)); p7.add(new JLabel("花色边框")); panel.add(p7); JPanel p8 = new JPanel(); Border b1 = BorderFactory.createLineBorder(Color.blue, 2); Border b2 = BorderFactory.createEtchedBorder(); p8.setBorder(BorderFactory.createCompoundBorder(b1, b2)); p8.add(new JLabel("组合边框")); panel.add(p8); JScrollPane scrollPane = new JScrollPane(panel); scrollPane.setPreferredSize(new Dimension(300, 300)); frame.getContentPane().add(panel); frame.pack(); frame.setVisible(true); } }到此,Java客户端Swing程序中控件的边框定义便介绍完了,本文中,我们演示了线边框、蚀刻边框、斜面边框、标题边框、组合边框的实际用法,希望对你有所帮助。