diff options
Diffstat (limited to 'netx/net/sourceforge/jnlp/util/ImageResources.java')
-rw-r--r-- | netx/net/sourceforge/jnlp/util/ImageResources.java | 101 |
1 files changed, 101 insertions, 0 deletions
diff --git a/netx/net/sourceforge/jnlp/util/ImageResources.java b/netx/net/sourceforge/jnlp/util/ImageResources.java new file mode 100644 index 0000000..0f03ffb --- /dev/null +++ b/netx/net/sourceforge/jnlp/util/ImageResources.java @@ -0,0 +1,101 @@ +/* ImageResources.java + Copyright (C) 2012 Red Hat, Inc. + +This file is part of IcedTea. + +IcedTea 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, or (at your option) +any later version. + +IcedTea 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 IcedTea; see the file COPYING. If not, write to the +Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA +02110-1301 USA. + +Linking this library statically or dynamically with other modules is +making a combined work based on this library. Thus, the terms and +conditions of the GNU General Public License cover the whole +combination. + +As a special exception, the copyright holders of this library give you +permission to link this library with independent modules to produce an +executable, regardless of the license terms of these independent +modules, and to copy and distribute the resulting executable under +terms of your choice, provided that you also meet, for each linked +independent module, the terms and conditions of the license of that +module. An independent module is a module which is not derived from +or based on this library. If you modify this library, you may extend +this exception to your version of the library, but you are not +obligated to do so. If you do not wish to do so, delete this +exception statement from your version. */ + +package net.sourceforge.jnlp.util; + +import java.awt.Image; +import java.io.IOException; +import java.io.InputStream; +import java.util.ArrayList; +import java.util.HashMap; +import java.util.List; +import java.util.Map; + +import javax.imageio.ImageIO; + +public enum ImageResources { + + INSTANCE; + + private static final String APPLICATION_ICON_PATH = "net/sourceforge/jnlp/resources/netx-icon.png"; + + private final Map<String, Image> cache = new HashMap<String, Image>(); + + private ImageResources() {} + + /* this is for testing ONLY */ + void clearCache() { + cache.clear(); + } + + /** + * Returns an appropriate image, or null if there are errors loading the image. + */ + private Image getApplicationImage() { + if (cache.containsKey(APPLICATION_ICON_PATH)) { + return cache.get(APPLICATION_ICON_PATH); + } + + ClassLoader cl = this.getClass().getClassLoader(); + if (cl == null) { + cl = ClassLoader.getSystemClassLoader(); + } + + InputStream in = cl.getResourceAsStream(APPLICATION_ICON_PATH); + try { + Image image = ImageIO.read(in); + cache.put(APPLICATION_ICON_PATH, image); + return image; + } catch (IOException ioe) { + ioe.printStackTrace(); + return null; + } + } + + /** + * Returns an appropriate image, or null if there are errors loading the image. + */ + public List<Image> getApplicationImages() { + List<Image> images = new ArrayList<Image>(); + Image appImage = getApplicationImage(); + if (appImage != null) { + images.add(appImage); + } + return images; + } + +} |