editormessage.java~2~

1． 消息即时通信 2． 消息发送实现一对一、一对多等多种发送模式 3． 发送的消息实现多彩文本编辑

package chat;

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

public class EditorMessage extends JPanel implements ActionListener {
  Font font;
  JPanel toolPanel;
  JPanel messagePanel;
  JTextPane messageTextPane;
  JScrollPane messageScrollPane;
  JComboBox fontFamilyCB;
  JButton boldButton;
  JButton italicButton;
  JButton underLineButton;

  static String fontFamily;


  public EditorMessage() {
    try {
      jbInit();
    }
    catch(Exception ex) {
      ex.printStackTrace();
    }
  }
  void jbInit() throws Exception {
    font=new Font("新宋体",Font.PLAIN,12);


    toolPanel=new JPanel();
    messagePanel=new JPanel();
    messageTextPane=new JTextPane();
    messageTextPane.setContentType("text/html");
    messageScrollPane=new JScrollPane(messageTextPane);
    messageScrollPane.setPreferredSize(new Dimension(400,400));

    fontFamilyCB=new JComboBox(GraphicsEnvironment.getLocalGraphicsEnvironment().
                               getAvailableFontFamilyNames());

    fontFamilyCB.setFont(font);
    fontFamilyCB.setBackground(Color.white);
    fontFamilyCB.addActionListener(this);


    boldButton=new JButton();
    italicButton=new JButton();
    underLineButton=new JButton();


    //boldButton.setAction(getComponent().getActionMap().get("font-bold"));
    italicButton.setAction(getComponent().getActionMap().get("font-italic"));
    underLineButton.setAction(getComponent().getActionMap().get("font-underline"));
    boldButton.setAction(new StyledEditorKit.FontFamilyAction(fontFamily,fontFamily));
    //System.out.println(fontFamily);







    toolPanel.add(fontFamilyCB);
    toolPanel.add(boldButton);
    toolPanel.add(italicButton);
    toolPanel.add(underLineButton);
    messagePanel.add(messageScrollPane);
    this.setLayout(new GridLayout(2,1));
    this.add(toolPanel);
    this.add(messagePanel);
  }

  public void actionPerformed(ActionEvent evt) {
    JComboBox source = (JComboBox) evt.getSource();
    fontFamily = (String) source.getSelectedItem();
    fontFamilyCB.setAction(new StyledEditorKit.FontFamilyAction(fontFamily,fontFamily));
    //Document doc=getComponent().getDocument();




    //getComponent().setFont(new Font(fontFamily,Font.BOLD,12));




    System.out.println(fontFamily);
    //fontLabel.setFont(new Font(item, Font.PLAIN, 12));

  }

  public JTextComponent getComponent(){
    return this.messageTextPane;
  }

  protected void makeAction(){
    Action a;

    a=getComponent().getActionMap().get("font-bold");

    a=getComponent().getActionMap().get("font-italic");

    a=getComponent().getActionMap().get("font-underLine");



  }



  public static void main(String[] args){
    JFrame frame=new JFrame();
    EditorMessage editorMessage=new EditorMessage();
    frame.getContentPane().add(editorMessage);
    frame.setVisible(true);
  }
}

class StrikeThroughAction  extends StyledEditorKit.StyledTextAction {

    public StrikeThroughAction() {
      super(StyleConstants.StrikeThrough.toString());
    }

    public void actionPerformed(ActionEvent ae) {
      JEditorPane editor = getEditor(ae);
      if (editor != null) {
        StyledEditorKit kit = getStyledEditorKit(editor);
        MutableAttributeSet attr = kit.getInputAttributes();
        boolean strikeThrough = (StyleConstants.isStrikeThrough(attr)) ? false : true;
        SimpleAttributeSet sas = new SimpleAttributeSet();
        StyleConstants.setStrikeThrough(sas, strikeThrough);
        setCharacterAttributes(editor, sas, false);
      }
    }
  }