请问有没有人用过JColorChooser类？能不能给个简单的例子，说明怎样用这个类

[重炮军团]

请各位大侠帮帮忙
小生多谢~~

[horizonlyhw]

百度搜嘛 這個 好多
http://cache.baidu.com/c?m=9f65cb4a8c8507ed4fece763104c8c711923d030678197027fa3c215cc790007506197fe747e4519839b21321cf40f0bb5ed6070360627e7999b8b19d8ecc12a2ed87736711b851710d70eafbc1c639e7e841fb4ef4fe8e2a16fcdf3928285090e8b0445&p=882a954387881bc300adc7710c50&user=baidu 這個就是～

[jxplus]

这是我学习时用的例子：ColorChooserTest.java

/**
   @version 1.02 2009-05-20
   @author jxplus
*/

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

public class ColorChooserTest
{
   public static void main(String[] args)
   {
      ColorChooserFrame frame = new ColorChooserFrame();
      frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
      frame.setVisible(true);
   }
}

/**
   A frame with a color chooser panel
*/
class ColorChooserFrame extends JFrame
{
   public ColorChooserFrame()
   {
      setTitle("ColorChooserTest");
      setSize(DEFAULT_WIDTH, DEFAULT_HEIGHT);

      // add color chooser panel to frame

      ColorChooserPanel panel = new ColorChooserPanel();      
      add(panel);
   }

   public static final int DEFAULT_WIDTH = 300;
   public static final int DEFAULT_HEIGHT = 200;  
}

/**
   A panel with buttons to pop up three types of color choosers
*/
class ColorChooserPanel extends JPanel
{
   public ColorChooserPanel()
   {
      JButton modalButton = new JButton("Modal");
      modalButton.addActionListener(new ModalListener());
      add(modalButton);

      JButton modelessButton = new JButton("Modeless");
      modelessButton.addActionListener(new ModelessListener());
      add(modelessButton);

      JButton immediateButton = new JButton("Immediate");
      immediateButton.addActionListener(new ImmediateListener());
      add(immediateButton);
   }

   /**
      This listener pops up a modal color chooser
   */
   private class ModalListener implements ActionListener
   {
      public void actionPerformed(ActionEvent event)
      {
         Color defaultColor = getBackground();
         Color selected = JColorChooser.showDialog(
            ColorChooserPanel.this, 
            "Set background", 
            defaultColor);
         if (selected != null) setBackground(selected);
      }
   }

   /**
      This listener pops up a modeless color chooser.
      The panel color is changed when the user clicks the Ok
      button.
   */
   private class ModelessListener implements ActionListener
   {
      public ModelessListener()
      {
         chooser = new JColorChooser();
         dialog = JColorChooser.createDialog(
            ColorChooserPanel.this,
            "Background Color",
            false /* not modal */,
            chooser,
            new ActionListener() // OK button listener
               {
                  public void actionPerformed(ActionEvent event)
                  {
                     setBackground(chooser.getColor());
                  }
               },
            null /* no Cancel button listener */);
      }

      public void actionPerformed(ActionEvent event)
      {
         chooser.setColor(getBackground());
         dialog.setVisible(true);
      }

      private JDialog dialog;
      private JColorChooser chooser;
   }

   /**
      This listener pops up a modeless color chooser.
      The panel color is changed immediately when the
      user picks a new color.
   */
   private class ImmediateListener implements ActionListener
   {
      public ImmediateListener()
      {
         chooser = new JColorChooser();
         chooser.getSelectionModel().addChangeListener(new
            ChangeListener()
            {
               public void stateChanged(ChangeEvent event)
               {
                  setBackground(chooser.getColor());
               }
            });

         dialog = new JDialog(
            (Frame) null, 
            false /* not modal */);
         dialog.add(chooser);
         dialog.pack();
      }

      public void actionPerformed(ActionEvent event)
      {
         chooser.setColor(getBackground());
         dialog.setVisible(true);
      }

      private JDialog dialog;
      private JColorChooser chooser;
   }
}

可直接运行，希望对你有用。

[xlongbuilder]

建议多看看sun 的列子
最好的入门文档

[一头头]

看文档哇 同学

文档里面有例子的 http://java.sun.com/docs/books/tutorial/uiswing/components/colorchooser.html

[没有昵称阿]

JTextArea can display and edit multiple lines of text. Although a text area can display text in any font, all of the text is in the same font. Use a text area to allow the user to enter unformatted text of any length or to display unformatted help information.
你试一下：

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

public class TestForYou{
public static void main(String[] args){
final JFrame f = new JFrame();
final JButton b = new JButton("button");
final JTextPane t = new JTextPane();

b.addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent e)
{
JColorChooser jc=new JColorChooser();
Color selectedColor=jc.showDialog(f,"zb",t.getSelectedTextColor());
new StyledEditorKit.ForegroundAction("no-name", selectedColor).actionPerformed(e);
}
});

f.getContentPane().setLayout(new BorderLayout());
f.getContentPane().add(b,BorderLayout.NORTH);
f.getContentPane().add(t,BorderLayout.CENTER);
f.setSize(200,200);
f.setVisible(true);


}
}
先输入一段文本，选一部分，点Button，返回后选中文本已改色，按tab切换至textpane仍为原选中状态

[没有昵称阿]

//ShowColors2.java
//Demonstrating JColorChooser.

//Java core packages
import java.awt.*;
import java.awt.event.*;

//Java extension packages
import javax.swing.*;

public class ShowColors2 extends JFrame
{
private JButton changeColorButton;
private Color color = Color.lightGray;
private Container container;

//set up GUI
public ShowColors2()
{
super("Using JColorChooser");

container = getContentPane();
container.setLayout(new FlowLayout());

//set up changeColorButton and register its event handler
changeColorButton = new JButton( "Change Color" );

changeColorButton.addActionListener(
//anonymous inner class
new ActionListener()
{
public void actionPerformed(ActionEvent event )
{
color = JColorChooser.showDialog(ShowColors2.this,"Choose a color",color);

//set default color,if no color is returned
if(color == null )
color = Color.lightGray;

//container.setBackground( color );
}//end actionPerformd

}//end of ActionListioner
);//end call to addActionListener
container.add( changeColorButton );

setSize( 400,130 );
setVisible( true );
}

//execute application
public static void main(String arges[] )
{
ShowColors2 application = new ShowColors2();

application.setDefaultCloseOperation( JFrame.EXIT_ON_CLOSE );
}
}