/*
* #%L
* gitools-ui-platform
* %%
* Copyright (C) 2013 Universitat Pompeu Fabra - Biomedical Genomics group
* %%
* 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 3 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.
*
* You should have received a copy of the GNU General Public
* License along with this program. If not, see
* <http://www.gnu.org/licenses/gpl-3.0.html>.
* #L%
*/
package org.gitools.ui.platform;
import javax.swing.*;
import java.awt.*;
import java.awt.image.BufferedImage;
import java.net.URL;
public class IconUtils {
public static final String nullResourceImage = "/img/null.gif";
public static Icon getIconResource(String name) {
return getImageIconResource(name);
}
public static Image getImageResource(String name) {
Icon icon = getImageIconResource(name);
return iconToImage(icon, icon.getIconWidth(), icon.getIconHeight());
}
public static ImageIcon getImageIconResource(String name) {
URL url = IconUtils.class.getResource(name);
if (url == null) {
url = IconUtils.class.getResource(nullResourceImage);
}
return new ImageIcon(url);
}
public static ImageIcon getImageIconResourceScaledByHeight(String name, int height) {
ImageIcon icon = getImageIconResource(name);
int w = icon.getIconWidth();
int h = icon.getIconHeight();
double ratio = (double) height / (double) h;
int width = (int) Math.floor(w * ratio);
return new ImageIcon(iconToImage(icon, width, height));
}
private static Image iconToImage(Icon icon, int width, int height) {
int w = icon.getIconWidth();
int h = icon.getIconHeight();
boolean sameSize = w == width && h == height;
if (icon instanceof ImageIcon && sameSize) {
return ((ImageIcon) icon).getImage();
} else {
GraphicsEnvironment ge = GraphicsEnvironment.getLocalGraphicsEnvironment();
GraphicsDevice gd = ge.getDefaultScreenDevice();
GraphicsConfiguration gc = gd.getDefaultConfiguration();
BufferedImage image = gc.createCompatibleImage(w, h, Transparency.BITMASK /*TRANSLUCENT*/);
Graphics2D g = image.createGraphics();
icon.paintIcon(null, g, 0, 0);
g.dispose();
if (sameSize) {
return image;
} else {
return image.getScaledInstance(width, height, Image.SCALE_SMOOTH);
}
}
}
}