documentdemo.java

一个简单的文本编辑器,模趽msword写的哈!

package chapter14;
import java.awt.Color;
import java.awt.Component;

import javax.swing.JFrame;
import javax.swing.JTextPane;
import javax.swing.text.AttributeSet;
import javax.swing.text.BadLocationException;
import javax.swing.text.Document;
import javax.swing.text.SimpleAttributeSet;
import javax.swing.text.StyleConstants;


public class Documentdemo{
    private JTextPane text;
	public Documentdemo(){
    	  text=new JTextPane();
    	  text.setBackground(Color.black);
    	  text.setEditable(true);    	
    }
	public void setyellowbold20(String str){
		SimpleAttributeSet attreset=new SimpleAttributeSet();
		StyleConstants.setForeground(attreset,Color.yellow);
		StyleConstants.setBold(attreset,false);
		StyleConstants.setFontSize(attreset, 20);
	    insert(str,attreset);
	}
	public void insert(String str,AttributeSet attreset){
		Document docs=text.getDocument();
		str=str+"\n";
		try{
			docs.insertString(docs.getLength(), str, attreset);
		}catch(BadLocationException e){
			e.printStackTrace();
		}
	}
	public Component getcomponent(){
		return text;
	}
	public static void main(String[] args) {
		Documentdemo pane=new Documentdemo();
        pane.setyellowbold20("wo shi chenbiao");
        JFrame frame=new JFrame();
        frame.getContentPane().add(pane.getcomponent());
        frame.pack();
        frame.show();
	}

}