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Added multi-resolution SVG image icon transcoder
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,86 @@ | ||
| package gui; | ||
|
|
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| import java.awt.image.BaseMultiResolutionImage; | ||
| import java.awt.image.BufferedImage; | ||
| import java.net.URISyntaxException; | ||
| import java.util.ArrayList; | ||
| import java.util.List; | ||
|
|
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| import dna.Dna; | ||
| import logger.LogEvent; | ||
| import logger.Logger; | ||
| import org.apache.batik.transcoder.TranscoderException; | ||
| import org.apache.batik.transcoder.TranscoderInput; | ||
| import org.apache.batik.transcoder.TranscoderOutput; | ||
| import org.apache.batik.transcoder.image.ImageTranscoder; | ||
|
|
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| import javax.swing.*; | ||
|
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| public class SvgIcon { | ||
| private BaseMultiResolutionImage b; | ||
|
|
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| public SvgIcon(String svgPath, int baselineSize) { | ||
| this.b = this.createMultiImage(svgPath, baselineSize); | ||
| } | ||
|
|
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| public ImageIcon getImageIcon() { | ||
| return new ImageIcon(this.b); | ||
| } | ||
|
|
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| private BaseMultiResolutionImage createMultiImage(String svgPath, int baselineSize) { | ||
| double[] zoomFactors = {1.0, 1.25, 1.5, 1.75, 2.0, 2.25, 2.5, 2.75, 3.0}; | ||
| List<BufferedImage> images = new ArrayList<>(); | ||
| for (double zoomFactor : zoomFactors) { | ||
| int size = (int) (baselineSize * zoomFactor); | ||
| BufferedImage image = transcodeSvgToImage(svgPath, size, size); | ||
| images.add(image); | ||
| } | ||
| return new BaseMultiResolutionImage(images.stream().toArray(BufferedImage[]::new)); | ||
| } | ||
|
|
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| private BufferedImage transcodeSvgToImage(String svgPath, int width, int height) { | ||
| String inputString = null; | ||
| try { | ||
| inputString = getClass().getResource(svgPath).toURI().toString(); | ||
| } catch (URISyntaxException e) { | ||
| LogEvent l = new LogEvent(Logger.ERROR, | ||
| "Failed to convert SVG resource to URI.", | ||
| "Tried to retrieve the SVG file " + svgPath + " from the JAR container, but failed to convert it into a URI string.", | ||
| e); | ||
| Dna.logger.log(l); | ||
| } | ||
| BufferedImageTranscoder transcoder = new BufferedImageTranscoder(); | ||
| transcoder.addTranscodingHint(ImageTranscoder.KEY_WIDTH, (float) width); | ||
| transcoder.addTranscodingHint(ImageTranscoder.KEY_HEIGHT, (float) height); | ||
| TranscoderInput input = new TranscoderInput(inputString); | ||
| try { | ||
| transcoder.transcode(input, null); | ||
| } catch (TranscoderException e) { | ||
| LogEvent l = new LogEvent(Logger.ERROR, | ||
| "Failed to transcode SVG image.", | ||
| "Tried to transcode SVG file " + svgPath + " into a rasterized image for use as an icon.", | ||
| e); | ||
| Dna.logger.log(l); | ||
| } | ||
| return transcoder.getImage(); | ||
| } | ||
|
|
||
| private static class BufferedImageTranscoder extends ImageTranscoder { | ||
| private BufferedImage image = null; | ||
|
|
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| public BufferedImage getImage() { | ||
| return image; | ||
| } | ||
|
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| @Override | ||
| public BufferedImage createImage(int w, int h) { | ||
| BufferedImage bi = new BufferedImage(w, h, BufferedImage.TYPE_INT_ARGB); | ||
| return bi; | ||
| } | ||
|
|
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| @Override | ||
| public void writeImage(BufferedImage img, TranscoderOutput output) { | ||
| image = img; | ||
| } | ||
| } | ||
| } |
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