mirror of
https://github.com/mitb-archive/filebot
synced 2024-08-13 17:03:45 -04:00
120 lines
3.9 KiB
Java
120 lines
3.9 KiB
Java
package net.filebot;
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import static java.util.Collections.*;
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import static java.util.stream.Collectors.*;
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import java.awt.GraphicsEnvironment;
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import java.awt.Image;
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import java.awt.image.BaseMultiResolutionImage;
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import java.awt.image.BufferedImage;
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import java.net.URL;
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import java.util.ArrayList;
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import java.util.HashMap;
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import java.util.List;
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import java.util.Map;
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import java.util.Objects;
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import java.util.stream.Stream;
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import javax.imageio.ImageIO;
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import javax.swing.Icon;
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import javax.swing.ImageIcon;
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import org.imgscalr.Scalr;
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import org.imgscalr.Scalr.Method;
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import org.imgscalr.Scalr.Mode;
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public final class ResourceManager {
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private static final Map<String, Icon> cache = synchronizedMap(new HashMap<String, Icon>(256));
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public static Icon getIcon(String name) {
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return cache.computeIfAbsent(name, i -> {
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// load image
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URL[] resource = getMultiResolutionImageResource(i);
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if (resource.length > 0) {
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return new ImageIcon(getMultiResolutionImage(resource));
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}
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// default image
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return null;
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});
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}
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public static Stream<URL> getApplicationIconResources() {
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return Stream.of("window.icon16", "window.icon64").map(ResourceManager::getImageResource);
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}
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public static List<Image> getApplicationIconImages() {
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return Stream.of("window.icon16", "window.icon64").map(ResourceManager::getMultiResolutionImageResource).map(ResourceManager::getMultiResolutionImage).collect(toList());
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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 URL[] getMultiResolutionImageResource(String name) {
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return Stream.of(name, name + "@2x").map(ResourceManager::getImageResource).filter(Objects::nonNull).toArray(URL[]::new);
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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 Image getMultiResolutionImage(URL[] resource) {
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try {
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// Load multi-resolution images only if necessary
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if (PRIMARY_SCALE_FACTOR == 1) {
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return ImageIO.read(resource[0]);
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}
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List<BufferedImage> image = new ArrayList<BufferedImage>(resource.length);
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for (URL r : resource) {
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image.add(ImageIO.read(r));
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}
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// Windows 10: use down-scaled @2x image for non-integer scale factors 1.25 / 1.5 / 1.75
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if (PRIMARY_SCALE_FACTOR > 1 && PRIMARY_SCALE_FACTOR < 2 && image.size() > 1) {
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image.add(1, scale(PRIMARY_SCALE_FACTOR / 2, image.get(1)));
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} else if (PRIMARY_SCALE_FACTOR > 2) {
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image.add(scale(PRIMARY_SCALE_FACTOR / 2, image.get(1)));
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}
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return new BaseMultiResolutionImage(image.toArray(Image[]::new));
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} catch (Exception e) {
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throw new RuntimeException(e);
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}
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}
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public static Image getMultiResolutionImage(BufferedImage baseImage, double baseScale) {
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if (PRIMARY_SCALE_FACTOR == 1 && baseScale == 1) {
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return baseImage;
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}
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List<BufferedImage> image = new ArrayList<BufferedImage>(3);
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image.add(baseImage);
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// use down-scaled @2x image as @1x base image
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if (baseScale > 1) {
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image.add(0, scale(1 / baseScale, baseImage));
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}
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// Windows 10: use down-scaled @2x image for non-integer scale factors 1.25 / 1.5 / 1.75
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if (PRIMARY_SCALE_FACTOR > 1 && PRIMARY_SCALE_FACTOR < baseScale) {
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image.add(1, scale(PRIMARY_SCALE_FACTOR / baseScale, baseImage));
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} else if (PRIMARY_SCALE_FACTOR > baseScale) {
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image.add(scale(PRIMARY_SCALE_FACTOR / baseScale, baseImage));
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}
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return new BaseMultiResolutionImage(image.toArray(Image[]::new));
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}
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private static final double PRIMARY_SCALE_FACTOR = GraphicsEnvironment.getLocalGraphicsEnvironment().getDefaultScreenDevice().getDefaultConfiguration().getDefaultTransform().getScaleX();
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private static BufferedImage scale(double scale, BufferedImage image) {
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int w = (int) (scale * image.getWidth());
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int h = (int) (scale * image.getHeight());
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return Scalr.resize(image, Method.ULTRA_QUALITY, Mode.FIT_TO_WIDTH, w, h, Scalr.OP_ANTIALIAS);
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}
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}
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