package org.jtheque.ui.components.filthy;
/*
* Copyright JTheque (Baptiste Wicht)
*
* 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.
*/
import org.jtheque.ui.FilthyUtils;
import org.jtheque.utils.ui.SizeTracker;
import javax.swing.JPanel;
import java.awt.Graphics;
import java.awt.Image;
/**
* A panel with a filthy background.
*
* @author Baptiste Wicht
*/
public class FilthyBackgroundPanel extends JPanel {
private final SizeTracker tracker = new SizeTracker(this);
private FilthyUtils filthyUtils;
private Image gradientImage;
/**
* Construct a new FilthyBackgroundPanel. Using this constructor, the extended class must override the
* getFilthyUtils method to provide a FilthyUtils service to the panel.
*/
public FilthyBackgroundPanel() {
super();
}
/**
* Construct a new FilthyBackgroundPanel.
*
* @param filthyUtils The filthy utils.
*/
public FilthyBackgroundPanel(FilthyUtils filthyUtils) {
super();
this.filthyUtils = filthyUtils;
}
@Override
public void paintComponent(Graphics g) {
if (!isVisible()) {
return;
}
gradientImage = getFilthyUtils().paintFilthyBackground(g, gradientImage, tracker, this);
}
/**
* Return the filthy utils to use to paint this panel.
*
* @return The filthy utils to use.
*/
protected FilthyUtils getFilthyUtils() {
return filthyUtils;
}
}