eventdo.java.bak

来自「可以实现.txt和.pas文件的词法分析,提供给大家参考和学习」· BAK 代码 · 共 78 行

package PL0;

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

public class EventDo extends JFrame{
	private JButton open=new JButton("打开文件");
	private JButton symdo=new JButton("开始处理");
	public  JTextArea filecontent=new JTextArea(23,53);
	protected JTextField filename=new JTextField();
	public static JTextArea errorinfor=new JTextArea(5,53);
	public EventDo(){
		JPanel p=new JPanel();
		open.addActionListener(new OpenFile());
		symdo.addActionListener(new SystemDo());
		filename.setEditable(false);
		errorinfor.setEditable(false);
		p.setLayout(new GridLayout(1,3));
		p.add(open);
		p.add(filename);
		p.add(symdo);
		JPanel p1=new JPanel();
		p1.add(new JScrollPane(filecontent),BorderLayout.NORTH);
		p1.add(new JScrollPane(errorinfor));
		add(p1);
		add(p,BorderLayout.NORTH);
	}
	class OpenFile implements ActionListener{
		public void actionPerformed(ActionEvent e){
			JFileChooser chooser=new JFileChooser();
			chooser.addChoosableFileFilter(new MyFileFilter("txt",".txt")); 
			chooser.addChoosableFileFilter(new MyFileFilter("pl0",".pl0"));  
			int choose=chooser.showOpenDialog(EventDo.this);
			if(choose==JFileChooser.APPROVE_OPTION){
				filename.setText(chooser.getSelectedFile().toString());
				try{
					openfile(chooser.getSelectedFile().toString());
					}catch(IOException eb){
				    }
			}
			if(choose==JFileChooser.CANCEL_OPTION){
				errorinfor.append("您取消了打开文件\n");
				errorinfor.append("请您选择一个要编译的文件");
				}
		}
	}
	class SystemDo implements ActionListener{
		public void actionPerformed(ActionEvent e){
			try{
//				GetSym getsym=new GetSym(filename.getText(),"c:/out.txt");
//				getsym.dod();
//			filename.setText(filename.getText()+"处理完毕");
//			if(getsym.c.err.error.isEmpty()){
//				errorinfor.setText("错误序号："+getsym.c.err.error.get(0));
//			}
//			}catch(IOException ef){
//				errorinfor.setText("文件操作错误");
//		}
	}
}
public  void openfile(String filename) throws IOException{
	    BufferedReader in=new BufferedReader(new FileReader(filename));
	    String s;
	    int i=0;
		while((s=in.readLine())!=null){
			filecontent.append(i+"       "+s+"\n");
			i++;
		}
		in.close();
	}
public static void main(String[] args){
	SwingConsole d=new SwingConsole();
	EventDo mydo=new EventDo();
	d.run(mydo,600,600);
}
}