100 lines
2.4 KiB
Java
100 lines
2.4 KiB
Java
package net.filebot;
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import static java.util.Arrays.*;
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import java.awt.Image;
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import java.awt.Toolkit;
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import java.net.URL;
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import java.util.List;
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import java.util.stream.Collectors;
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import javax.swing.Icon;
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import javax.swing.ImageIcon;
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import net.filebot.util.WeakValueHashMap;
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public final class ResourceManager {
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private static final WeakValueHashMap<String, Icon> cache = new WeakValueHashMap<String, Icon>(256);
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public static Icon getIcon(String name) {
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return getIcon(name, null);
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}
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public static Icon getIcon(String name, String def) {
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Icon icon = null;
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// try cache
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synchronized (cache) {
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icon = cache.get(name);
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if (icon != null) {
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return icon;
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}
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}
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URL resource = getImageResource(name, def);
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if (resource == null) {
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return null;
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}
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Image image = getImage(resource);
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icon = new ImageIcon(image);
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// update cache
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synchronized (cache) {
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cache.put(name, icon);
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}
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return icon;
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}
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public static List<Image> getApplicationIcons() {
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return getApplicationIconURLs().stream().map(ResourceManager::getImage).collect(Collectors.toList());
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}
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public static List<URL> getApplicationIconURLs() {
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URL[] images = new URL[3];
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images[0] = ResourceManager.getImageResource("window.icon.small");
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images[1] = ResourceManager.getImageResource("window.icon.medium");
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images[2] = ResourceManager.getImageResource("window.icon.large");
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return asList(images);
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}
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public static Icon getFlagIcon(String languageCode) {
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return getIcon("flags/" + languageCode);
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}
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private static Image getImage(URL resource) {
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// load sun.awt.image.ToolkitImage or sun.awt.image.MultiResolutionToolkitImage (via @2x convention)
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return Toolkit.getDefaultToolkit().getImage(resource);
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}
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/**
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* Get the URL of an image resource in this jar. Image must be located in <code>resources/</code> and the file type is assumed to be png.
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*
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* @param name
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* simple name of the resource (without extension)
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* @return URL of the resource or null if resource does not exist
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*/
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private static URL getImageResource(String name) {
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return ResourceManager.class.getResource("resources/" + name + ".png");
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}
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private static URL getImageResource(String name, String def) {
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URL resource = getImageResource(name);
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if (resource == null)
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resource = getImageResource(def);
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return resource;
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}
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/**
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* Dummy constructor to prevent instantiation.
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*/
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private ResourceManager() {
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throw new UnsupportedOperationException();
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}
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}
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