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package jrummikub.view.impl;
import java.awt.Insets;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import java.awt.geom.Rectangle2D;
import java.util.Collections;
import java.util.Map;
import javax.swing.JPanel;
import jrummikub.model.Position;
import jrummikub.model.Stone;
import jrummikub.util.Event1;
import jrummikub.util.Event2;
import jrummikub.view.IClickable;
import jrummikub.view.IStonePanel;
/**
* Base class for panels that draw stones
*/
@SuppressWarnings("serial")
abstract class AbstractStonePanel extends JPanel implements IStonePanel,
IClickable {
private StonePainter stonePainter;
private Event1<Position> clickEvent = new Event1<Position>();
private Event2<Stone, Boolean> stoneClickEvent = new Event2<Stone, Boolean>();
private Event2<Stone, Boolean> rangeClickEvent = new Event2<Stone, Boolean>();
private Event2<Stone, Boolean> setClickEvent = new Event2<Stone, Boolean>();
private Map<Stone, Position> stones = Collections.emptyMap();
/**
* @return the stone painter
*/
protected StonePainter getStonePainter() {
return stonePainter;
}
/**
* Create a new StonePanel with default scale factor
*/
public AbstractStonePanel() {
this(1);
}
/**
* Create a new StonePanel with a given scale factor
*
* @param scale
* the grid scale
*/
public AbstractStonePanel(float scale) {
super(true); // Set double buffered
stonePainter = new StonePainter(scale);
addMouseListener(new MouseAdapter() {
@Override
public void mouseClicked(MouseEvent e) {
Insets insets = getInsets();
Position pos = stonePainter.calculatePosition(e.getX() - insets.left,
e.getY() - insets.top);
Stone stone = getStoneAt(pos);
if (stone == null) {
if (!handleOtherClickEvent(pos))
clickEvent.emit(pos);
return;
}
Event2<Stone, Boolean> event = stoneClickEvent;
if (e.isShiftDown())
event = rangeClickEvent;
else if (e.getClickCount() >= 2)
event = setClickEvent;
event.emit(stone, e.isControlDown());
}
});
}
/*
* *Overwrite this method* to signal if special zone was clicked
*
* @return special zone clicked
*/
protected boolean handleOtherClickEvent(Position pos) {
return false;
}
private Stone getStoneAt(Position pos) {
for (Map.Entry<Stone, Position> entry : stones.entrySet()) {
Stone stone = entry.getKey();
Position p = entry.getValue();
Rectangle2D rect = new Rectangle2D.Float(p.getX(), p.getY(), 1, 1);
if (rect.contains(pos.getX(), pos.getY()))
return stone;
}
return null;
}
/**
* Sets the list of stones that can be clicked on
*
* @param stones
* the stones and positions
*/
protected void setStones(Map<Stone, Position> stones) {
this.stones = stones;
}
/**
* Returns the list of stones and positions currently set
*
* @return the stones
*/
protected Map<Stone, Position> getStones() {
return stones;
}
@Override
public Event1<Position> getClickEvent() {
return clickEvent;
}
@Override
public Event2<Stone, Boolean> getStoneClickEvent() {
return stoneClickEvent;
}
@Override
public Event2<Stone, Boolean> getRangeClickEvent() {
return rangeClickEvent;
}
@Override
public Event2<Stone, Boolean> getSetClickEvent() {
return setClickEvent;
}
}
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