package jrummikub.view.impl;

import java.awt.Insets;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;

import javax.swing.JPanel;

import jrummikub.model.Position;
import jrummikub.util.Event2;
import jrummikub.view.IClickable;

/**
 * Base class for panels that draw stones
 */
@SuppressWarnings("serial")
abstract class StonePanel extends JPanel implements IClickable {
  private StonePainter stonePainter;

  private Event2<Position, Boolean> clickEvent = new Event2<Position, Boolean>();
  private Event2<Position, Boolean> rangeClickEvent = new Event2<Position, Boolean>();
  private Event2<Position, Boolean> setClickEvent = new Event2<Position, Boolean>();

  /**
   * @return the stone painter
   */
  protected StonePainter getStonePainter() {
    return stonePainter;
  }

  /**
   * Create a new StonePanel with default scale factor
   */
  public StonePanel() {
    this(1);
  }

  /**
   * Create a new StonePanel with a given scale factor
   * 
   * @param scale
   *          the grid scale
   */
  public StonePanel(float scale) {
    super(true); // Set double buffered

    stonePainter = new StonePainter(scale);

    addMouseListener(new MouseAdapter() {
      @Override
      public void mouseClicked(MouseEvent e) {
        Insets insets = getInsets();
        Event2<Position, Boolean> event = clickEvent;

        if (e.isShiftDown())
          event = rangeClickEvent;
        else if (e.getClickCount() >= 2)
          event = setClickEvent;

        event.fire(
            stonePainter.calculatePosition(e.getX() - insets.left, e.getY()
                - insets.top), e.isControlDown());
      }
    });
  }

  @Override
  public Event2<Position, Boolean> getClickEvent() {
    return clickEvent;
  }

  @Override
  public Event2<Position, Boolean> getRangeClickEvent() {
    return rangeClickEvent;
  }

  @Override
  public Event2<Position, Boolean> getSetClickEvent() {
    return setClickEvent;
  }

}