org.polymap.rhei.batik.engine.svg.Svg2PngTest.java Source code

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Here is the source code for org.polymap.rhei.batik.engine.svg.Svg2PngTest.java

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/*
 * polymap.org 
 * Copyright (C) 2015 individual contributors as indicated by the @authors tag. 
 * All rights reserved.
 * 
 * This is free software; you can redistribute it and/or modify it under the terms of
 * the GNU Lesser General Public License as published by the Free Software
 * Foundation; either version 3 of the License, or (at your option) any later
 * version.
 * 
 * This software 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 Lesser General Public License for more details.
 */
package org.polymap.rhei.batik.engine.svg;

import java.util.Collections;

import java.awt.image.BufferedImage;
import java.io.File;
import java.io.InputStream;
import java.net.URL;

import javax.imageio.ImageIO;

import org.junit.Assert;
import org.junit.Test;

import org.apache.commons.io.FileUtils;

import org.polymap.rhei.batik.engine.svg.ColorDepth;
import org.polymap.rhei.batik.engine.svg.ImageConfiguration;
import org.polymap.rhei.batik.engine.svg.Scale;
import org.polymap.rhei.batik.engine.svg.Svg2Png;
import org.polymap.rhei.batik.engine.svg.Svg2Png.Bounds;
import org.polymap.rhei.batik.engine.svg.Svg2Png.COLOR_TYPE;

/**
 * @author Joerg Reichert <joerg@mapzone.io>
 *
 */
public class Svg2PngTest {
    public static final String EXAMPLE_SVG = "Dopplr.svg";
    public static final String EXAMPLE_SVG2 = "ic_delete_48px.svg";

    private Svg2Png svg2Png = new Svg2Png();

    @Test
    public void testScale_whenBiggerAndWidthGreaterThanHeight() {
        Scale scale = Scale.P16;
        Assert.assertEquals(16f, scale.getWidth(new Bounds(24f, 22f)), 0.5f);
        Assert.assertEquals(14.7f, scale.getHeight(new Bounds(24f, 22f)), 0.5f);
    }

    @Test
    public void testScale_whenBiggerAndWidthLowerThanHeight() {
        Scale scale = Scale.P16;
        Assert.assertEquals(14.7f, scale.getWidth(new Bounds(22f, 24f)), 0.5f);
        Assert.assertEquals(16f, scale.getHeight(new Bounds(22f, 24f)), 0.5f);
    }

    @Test
    public void testScale_whenBiggerAndWidthEqualHeight() {
        Scale scale = Scale.P16;
        Assert.assertEquals(16f, scale.getWidth(new Bounds(24f, 24f)), 0.5f);
        Assert.assertEquals(16f, scale.getHeight(new Bounds(24f, 24f)), 0.5f);
    }

    @Test
    public void testScale_whenSmallerAndWidthGreaterThanHeight() {
        Scale scale = Scale.P16;
        Assert.assertEquals(16f, scale.getWidth(new Bounds(14f, 12f)), 0.5f);
        Assert.assertEquals(13.7f, scale.getHeight(new Bounds(14f, 12f)), 0.5f);
    }

    @Test
    public void testScale_whenSmallerAndWidthLowerThanHeight() {
        Scale scale = Scale.P16;
        Assert.assertEquals(13.7f, scale.getWidth(new Bounds(12f, 14f)), 0.5f);
        Assert.assertEquals(16f, scale.getHeight(new Bounds(12f, 14f)), 0.5f);
    }

    @Test
    public void testScale_whenSmallerAndWidthEqualHeight() {
        Scale scale = Scale.P16;
        Assert.assertEquals(16f, scale.getWidth(new Bounds(14f, 14f)), 0.5f);
        Assert.assertEquals(16f, scale.getHeight(new Bounds(14f, 14f)), 0.5f);
    }

    @Test
    public void testSVGBounds() throws Exception {
        URL svgInputURL = getClass().getResource(EXAMPLE_SVG);
        try (InputStream svgInput = getClass().getResourceAsStream(EXAMPLE_SVG)) {
            Bounds bounds = svg2Png.getInitialSVGBounds(svgInputURL.toString(), svgInput);
            Assert.assertEquals(256f, bounds.getHeight(), 0.5f);
            Assert.assertEquals(256f, bounds.getWidth(), 0.5f);
        }
    }

    @Test
    public void testScaleSVG() throws Exception {
        ImageConfiguration imageConfig = new ImageConfiguration();
        imageConfig.setName("default");
        imageConfig.setDepth(ColorDepth.B4);
        imageConfig.setAdjHue(0.3f);
        imageConfig.setAdjSaturation(0.8f);
        imageConfig.setAdjBrightness(0f);
        imageConfig.setColorType(COLOR_TYPE.RGB);

        File pngPath = new File("build/Svg2PngTest");
        pngPath.mkdirs();
        FileUtils.cleanDirectory(pngPath);

        File svgFile = new File(pngPath, EXAMPLE_SVG2);
        FileUtils.copyURLToFile(getClass().getResource(EXAMPLE_SVG2), svgFile);

        svg2Png.transcode(pngPath.getAbsolutePath(), Collections.singletonList(svgFile),
                Collections.singletonList(Scale.P16), Collections.singletonList(imageConfig));

        BufferedImage image = ImageIO
                .read(new File(pngPath + "/default/16/" + EXAMPLE_SVG2.replace(".svg", ".png")));
        Assert.assertNotNull(image);
        Assert.assertEquals(16f, image.getHeight(), 0.5f);
        Assert.assertEquals(16f, image.getWidth(), 0.5f);
        Assert.assertEquals(1, image.getColorModel().getPixelSize());
    }
}