mirror of https://github.com/octoleo/plantuml.git
119 lines
3.3 KiB
Java
119 lines
3.3 KiB
Java
/* ========================================================================
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* PlantUML : a free UML diagram generator
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* ========================================================================
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*
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* (C) Copyright 2009-2020, Arnaud Roques
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*
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* Project Info: http://plantuml.com
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*
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* If you like this project or if you find it useful, you can support us at:
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*
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* http://plantuml.com/patreon (only 1$ per month!)
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* http://plantuml.com/paypal
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*
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* This file is part of PlantUML.
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*
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* PlantUML is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* PlantUML distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
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* License for more details.
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*
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* You should have received a copy of the GNU General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
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* USA.
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*
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*
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* Original Author: Arnaud Roques
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*
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*/
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package net.sourceforge.plantuml.fun;
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import java.awt.image.BufferedImage;
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import java.io.IOException;
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import java.io.InputStream;
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import java.util.ArrayList;
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import java.util.Collections;
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import java.util.List;
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import java.util.Map;
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import java.util.concurrent.ConcurrentHashMap;
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import javax.imageio.ImageIO;
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public class IconLoader {
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private static final int NUMBER_OF_ICONS = 30;
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private final static Map<String, BufferedImage> all = new ConcurrentHashMap<String, BufferedImage>();
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static private final List<String> tmp = new ArrayList<String>();
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public static BufferedImage getRandom() {
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// return addTransparent(getIcon("sprite029.png"));
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return addTransparent(getIcon(getSomeQuote()));
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}
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private static String getSomeQuote() {
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synchronized (tmp) {
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if (tmp.size() == 0) {
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for (int i = 0; i < NUMBER_OF_ICONS; i++) {
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tmp.add("sprite" + String.format("%03d", i) + ".png");
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}
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Collections.shuffle(tmp);
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}
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final int size = tmp.size();
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final String result = tmp.get(size - 1);
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tmp.remove(size - 1);
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return result;
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}
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}
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private static BufferedImage getIcon(String name) {
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BufferedImage result = all.get(name);
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if (result == null) {
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result = getIconSlow(name);
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if (result != null) {
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all.put(name, result);
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}
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}
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return result;
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}
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private static BufferedImage getIconSlow(String name) {
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try {
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final InputStream is = IconLoader.class.getResourceAsStream(name);
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if (is == null) {
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return null;
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}
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final BufferedImage image = ImageIO.read(is);
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is.close();
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return image;
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} catch (IOException e) {
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e.printStackTrace();
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}
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return null;
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}
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private static BufferedImage addTransparent(BufferedImage ico) {
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if (ico == null) {
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return null;
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}
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final BufferedImage transparentIcon = new BufferedImage(ico.getWidth(), ico.getHeight(),
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BufferedImage.TYPE_INT_ARGB_PRE);
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for (int i = 0; i < ico.getWidth(); i++) {
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for (int j = 0; j < ico.getHeight(); j++) {
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final int col = ico.getRGB(i, j);
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if (col != ico.getRGB(0, 0)) {
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transparentIcon.setRGB(i, j, col);
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}
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}
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}
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return transparentIcon;
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}
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}
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