/*
 * Copyright 2000-2009 JetBrains s.r.o.
 *
 * 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.intellij.xdebugger.impl.breakpoints.ui;

import com.intellij.util.EventDispatcher;

import javax.swing.*;
import java.util.EventListener;

/**
 * @author nik
 */
public abstract class AbstractBreakpointPanel<B> {
  private final String myTabName;
  private final String myHelpID;
  private final Class<B> myBreakpointClass;
  private final EventDispatcher<ChangesListener> myEventDispatcher = EventDispatcher.create(ChangesListener.class);

  protected AbstractBreakpointPanel(final String tabName, final String helpID, final Class<B> breakpointClass) {
    myTabName = tabName;
    myHelpID = helpID;
    myBreakpointClass = breakpointClass;
  }

  public String getTabTitle() {
    return myTabName;
  }

  public String getHelpID() {
    return myHelpID;
  }

  public abstract void dispose();

  public abstract Icon getTabIcon();

  public abstract void resetBreakpoints();

  public abstract void saveBreakpoints();

  public abstract JPanel getPanel();

  public abstract boolean canSelectBreakpoint(B breakpoint);

  public abstract void selectBreakpoint(B breakpoint);

  public abstract boolean hasBreakpoints();

  public void addChangesListener(ChangesListener listener) {
    myEventDispatcher.addListener(listener);
  }

  public void removeChangesListener(ChangesListener listener) {
    myEventDispatcher.removeListener(listener);
  }

  public Class<B> getBreakpointClass() {
    return myBreakpointClass;
  }

  public void ensureSelectionExists() {
  }

  protected void fireBreakpointsChanged() {
    myEventDispatcher.getMulticaster().breakpointsChanged();
  }

  public interface ChangesListener extends EventListener {
    void breakpointsChanged();
  }
}