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• LexerFrame.java

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org.codehaus.groovy.antlr.LexerFrame Maven / Gradle / Ivy

/*
 * Copyright 2003-2007 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.codehaus.groovy.antlr;
import java.awt.*;
import java.awt.event.*;
import java.io.*;
import java.lang.reflect.*;
import java.util.Hashtable;

import javax.swing.*;
import javax.swing.border.Border;
import javax.swing.text.BadLocationException;
import org.codehaus.groovy.antlr.parser.*;

import antlr.*;

/**
 * @author Santhosh Kumar T
 * @version 1.0
 */

public class LexerFrame extends JFrame implements ActionListener{
    JSplitPane jSplitPane1 = new JSplitPane();
    JScrollPane jScrollPane1 = new JScrollPane();
    JScrollPane jScrollPane2 = new JScrollPane();
    JTextPane tokenPane = new HScrollableTextPane();
    JButton jbutton = new JButton("open");
    JPanel mainPanel = new JPanel(new BorderLayout());
    JTextArea scriptPane = new JTextArea();
    Border border1;
    Border border2;

    Class lexerClass;

    public LexerFrame(Class lexerClass, Class tokenTypesClass){
        super("Token Steam Viewer");
        this.lexerClass = lexerClass;
        try{
            jbInit();
            setSize(500, 500);
            listTokens(tokenTypesClass);

            final JPopupMenu popup = new JPopupMenu();
            popup.add(loadFileAction);

            jbutton.setSize(30,30);
            jbutton.addMouseListener(new MouseAdapter(){
                public void mouseReleased(MouseEvent e) {
                    //if(e.isPopupTrigger())
                        popup.show(scriptPane, e.getX(), e.getY());
                }
            });
            setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        } catch(Exception e){
            e.printStackTrace();
        }
    }

    Hashtable tokens = new Hashtable();

    private void listTokens(Class tokenTypes) throws Exception{
        Field field[] = tokenTypes.getDeclaredFields();
        for(int i = 0; iline){
                tokenPane.getDocument().insertString(tokenPane.getDocument().getLength(), "\n", null);
                line = token.getLine();
            }
            insertComponent(tokenButton);
            if(token.getType()==Token.EOF_TYPE)
                break;
        }

        tokenPane.setEditable(false);
        tokenPane.setCaretPosition(0);
    }

    private void insertComponent(JComponent comp){
        try{
            tokenPane.getDocument().insertString(tokenPane.getDocument().getLength(), " ", null);
        } catch(BadLocationException ex1){
            // Ignore
        }
        try{
            tokenPane.setCaretPosition(tokenPane.getDocument().getLength()-1);
        } catch(Exception ex){
            tokenPane.setCaretPosition(0);
        }
        tokenPane.insertComponent(comp);
    }

    private void jbInit() throws Exception{
        border1 = BorderFactory.createEmptyBorder();
        border2 = BorderFactory.createEmptyBorder();
        jSplitPane1.setOrientation(JSplitPane.VERTICAL_SPLIT);
        tokenPane.setEditable(false);
        tokenPane.setText("");
        scriptPane.setFont(new java.awt.Font("DialogInput", 0, 12));
        scriptPane.setEditable(false);
        scriptPane.setMargin(new Insets(5, 5, 5, 5));
        scriptPane.setText("");
        jScrollPane1.setBorder(border1);
        jScrollPane2.setBorder(border1);
        jSplitPane1.setMinimumSize(new Dimension(800,600));
        mainPanel.add(jSplitPane1, BorderLayout.CENTER);
        mainPanel.add(jbutton,BorderLayout.NORTH);
        this.getContentPane().add(mainPanel);
        jSplitPane1.add(jScrollPane1, JSplitPane.LEFT);
        jScrollPane1.getViewport().add(tokenPane, null);
        jSplitPane1.add(jScrollPane2, JSplitPane.RIGHT);
        jScrollPane2.getViewport().add(scriptPane, null);

        jScrollPane1.setColumnHeaderView(new JLabel(" Token Stream:"));
        jScrollPane2.setColumnHeaderView(new JLabel(" Input Script:"));
        jSplitPane1.setResizeWeight(0.5);
    }

    public static void main(String[] args) throws Exception{
        try{
            UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
        } catch(Exception ignore){
            // Ignore
        }
        new LexerFrame(GroovyLexer.class, GroovyTokenTypes.class).setVisible(true);
    }
}


class HScrollableTextPane extends JTextPane{
    public boolean getScrollableTracksViewportWidth(){
        return(getSize().width