colorchooserdemo.java~3~

来自「some example source of java,for beginner」· JAVA~3~ 代码 · 共 51 行

package example10;

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.event.*;
import javax.swing.colorchooser.*;

public class ColorChooserDemo
    extends JPanel
    implements ChangeListener {
  protected JColorChooser tcc;
  protected JLabel banner;
  public ColorChooserDemo() {
    super(new BorderLayout());
    banner = new JLabel("欢迎使用颜色选择器！", JLabel.CENTER);
    banner.setForeground(Color.yellow);
    banner.setOpaque(true);
    banner.setFont(new Font("SanSerif", Font.BOLD, 24));
    banner.setPreferredSize(new Dimension(100, 65));
    JPanel bannerPanel = new JPanel(new BorderLayout());
    bannerPanel.add(banner, BorderLayout.CENTER);
    bannerPanel.setBorder(BorderFactory.createTitledBorder("广告"));
    //设置颜色选择器
    tcc = new JColorChooser(banner.getForeground());
    tcc.getSelectionModel().addChangeListener(this);
    tcc.setBorder(BorderFactory.createTitledBorder("选择颜色"));
    add(bannerPanel, BorderLayout.CENTER);
    add(tcc, BorderLayout.PAGE_END);
  }

  public void stateChanged(ChangeEvent e) {
    Color newColor = tcc.getColor();
    banner.setForeground(newColor);
  }

  public static void main(String[] args) {
//    JFrame.setDefaultLookAndFeelDecorated(true);
    //创建窗体
    JFrame frame = new JFrame("ColorChooserDemo");
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    //创建面板容器
    JComponent newContentPane = new ColorChooserDemo();
    newContentPane.setOpaque(true);
    frame.setContentPane(newContentPane);
    //显示窗体
    frame.pack();
    frame.setVisible(true);
  }
}