EditorPane.java

/* 
 * Copyright 2014 Igor Maznitsa (http://www.igormaznitsa.com).
 *
 * 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 com.igormaznitsa.prol.easygui;

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

/**
 * The class implements the Editor pane for the IDE.
 *
 * @author Igor Maznitsa (igor.maznitsa@igormaznitsa.com)
 */
public class EditorPane extends JTextPane {

  private static final long serialVersionUID = 2384993058573194751L;

  public interface EventReplacer {
    public void pasteEvent();
  }
  
  private volatile JPopupMenu popupMenu;
  private volatile EventReplacer replacer;

  public void setEventReplacer(final EventReplacer replacer) {
    this.replacer = replacer;
  }

  public EditorPane() {
    super();

    addMouseListener(new MouseAdapter() {

      @Override
      public void mousePressed(MouseEvent e) {
        showMenuIfPopupTrigger(e);
      }

      @Override
      public void mouseReleased(MouseEvent e) {
        showMenuIfPopupTrigger(e);
      }
    });
  }

  public void setPopupMenu(final JPopupMenu menu){
    this.popupMenu = menu;
  }
  
  private void showMenuIfPopupTrigger(final MouseEvent e) {
    final JPopupMenu thePopup = this.popupMenu;
    
    if (thePopup == null) {
      return;
    }
    if (e.isPopupTrigger()) {
      thePopup.show(this, e.getX() + 3, e.getY() + 3);
    }
  }

  @Override
  public void paste() {
    if (replacer == null) {
      super.paste();
    }
    else {
      replacer.pasteEvent();
    }
  }
}