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/* MindgameButtonsComponent.java
* =========================================================================
* This file is part of the GrInvIn project - http://www.grinvin.org
*
* Copyright (C) 2005-2008 Universiteit Gent
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or (at
* your option) any later version.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* A copy of the GNU General Public License can be found in the file
* LICENSE.txt provided with the source distribution of this program (see
* the META-INF directory in the source jar). This license can also be
* found on the GNU website at http://www.gnu.org/licenses/gpl.html.
*
* If you did not receive a copy of the GNU General Public License along
* with this program, contact the lead developer, or write to the Free
* Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
* 02110-1301, USA.
*/
package org.grinvin.gui.components;
import java.awt.GridLayout;
import java.awt.Insets;
import java.awt.LayoutManager;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.util.Random;
import javax.swing.Icon;
import javax.swing.JPanel;
import javax.swing.JToggleButton;
import javax.swing.Timer;
import org.grinvin.graphs.GraphURIType;
/**
*
*/
public class MindgameButtonsComponent extends JPanel {
//
private JToggleButton[] toggleButtons;
//
private JToggleButton first;
//
private JToggleButton second;
//
private Timer timer;
//
private int errors = 0;
public int getErrors() {
return errors;
}
/** Creates a new instance of MindgameButtonsComponent */
public MindgameButtonsComponent(Icon[] icons, Icon backIcon) {
timer = new Timer(2000, new TimerListener());
first = null;
setLayout(getLayoutManager(icons.length));
initButtons(icons, backIcon);
}
private LayoutManager getLayoutManager(int iconcount) {
return new GridLayout(bestDivisor(iconcount*2), 0);
}
// find the best square
private int bestDivisor(int number) {
int i = (int)Math.sqrt(number);
while (i > 1 && (number % i) != 0)
i--;
return i;
}
//
private static final Insets EMPTY_MARGIN = new Insets(0,0,0,0);
private void initButtons(Icon[] icons, Icon backIcon) {
int [] positions = randomPositions(icons.length);
ButtonListener buttonListener = new ButtonListener();
toggleButtons = new JToggleButton[positions.length];
for (int i=0;i<toggleButtons.length;i++) {
toggleButtons[i] = new JToggleButton(backIcon);
toggleButtons[i].setSelectedIcon(backIcon);
toggleButtons[i].setDisabledSelectedIcon(icons[positions[i]]);
toggleButtons[i].setDisabledIcon(backIcon);
toggleButtons[i].addActionListener(buttonListener);
toggleButtons[i].setMargin(EMPTY_MARGIN);
add(toggleButtons[i]);
}
}
//
private static final Random RG = new Random();
//
private int [] randomPositions(int iconcount){
int[] positions = new int[2 * iconcount];
for (int i=0; i< positions.length; i++) {
positions[i] = i/2;
}
// willekeurige herschikking
for (int i=positions.length-1; i >= 1; i--) {
int j = RG.nextInt(i+1);
if (i != j) {
int p = positions[i];
positions[i] = positions[j];
positions[j] = p;
}
}
return positions;
}
private MindgameButtonsComponentListener listener;
public interface MindgameButtonsComponentListener {
public void allDone();
public void madeError();
}
public void setListener(MindgameButtonsComponentListener listener) {
this.listener = listener;
}
//
private class TimerListener implements ActionListener {
/**
* Keert de getoonde kaarten terug om.
*/
public void actionPerformed(ActionEvent e) {
first.setSelected(false);
second.setSelected(false);
first.setBackground(null);
second.setBackground(null);
// maak 'kaart'-knoppen terug actief
for (JToggleButton button : toggleButtons)
if (!button.isSelected())
button.setEnabled(true);
first = null;
timer.stop();
}
}
//
private class ButtonListener implements ActionListener {
/**
* Reageer op het kiezen van een kaart.
*/
public void actionPerformed(ActionEvent e) {
if (first == null) {
// Kies de eerste kaart
first = (JToggleButton) e.getSource();
first.setEnabled(false);
first.setBackground(GraphURIType.GRAPH_GLOBAL.getIconBackgroundColor());
repaint();
} else {
// Kies de tweede kaart
second = (JToggleButton) e.getSource();
second.setEnabled(false);
second.setBackground(GraphURIType.GRAPH_GLOBAL.getIconBackgroundColor());
if(!first.getDisabledSelectedIcon().equals(second.getDisabledSelectedIcon())) {
errors++;
listener.madeError();
for (JToggleButton button : toggleButtons)
button.setEnabled(false);
timer.start();
} else {
first = null;
second = null;
//check if finished
boolean finished = true;
for (JToggleButton button : toggleButtons)
if (!button.isSelected())
finished = false;
if (finished)
listener.allDone();
}
}
}
}
}
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