/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/* $Id$ */
package org.apache.fop.svg.font;
import java.awt.FontFormatException;
import java.awt.GraphicsEnvironment;
import java.awt.font.FontRenderContext;
import java.awt.font.LineMetrics;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;
import java.util.Collections;
import org.junit.Before;
import org.junit.BeforeClass;
import org.junit.Ignore;
import org.junit.Test;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertNotNull;
import static org.junit.Assert.assertNull;
import static org.junit.Assert.assertTrue;
import org.apache.batik.gvt.font.GVTFontFamily;
import org.apache.batik.gvt.font.GVTLineMetrics;
import org.apache.fop.fonts.FontInfo;
public class FOPFontFamilyResolverTestCase {
private static FontInfo fontInfo;
private FOPFontFamilyResolver resolver;
@BeforeClass
public static void setUpFontInfo() {
fontInfo = new FontInfoBuilder()
.useDejaVuLGCSerif()
.useDroidSansMono()
.build();
}
@Before
public void createFontFamilyResolver() {
resolver = new FOPFontFamilyResolverImpl(fontInfo);
}
@Test
public void testResolve() {
assertNull(resolver.resolve("Unavailable"));
assertNotNull(resolver.resolve(FontInfoBuilder.DEJAVU_LGC_SERIF));
}
@Test
public void testGetFamilyThatCanDisplay() {
GVTFontFamily family = resolver.getFamilyThatCanDisplay('\u0180');
assertEquals(FontInfoBuilder.DEJAVU_LGC_SERIF, family.getFamilyName());
family = resolver.getFamilyThatCanDisplay('\u02F3');
assertEquals(FontInfoBuilder.DROID_SANS_MONO, family.getFamilyName());
family = resolver.getFamilyThatCanDisplay('\u02DF');
assertNull(family);
}
@Test
public void testDeriveFont() {
FOPGVTFontFamily family = resolver.resolve(FontInfoBuilder.DEJAVU_LGC_SERIF);
FOPGVTFont font = family.deriveFont(10, Collections.emptyMap());
assertEquals(10, font.getSize(), 0);
assertTrue(font.canDisplay('\u01F6'));
assertFalse(font.canDisplay('\u01F7'));
}
@Test
@Ignore("FOP metrics don't match AWT, but not sure who is right and who is wrong")
public void testLineMetrics() throws FontFormatException, IOException {
FOPGVTFontFamily family = resolver.resolve(FontInfoBuilder.DEJAVU_LGC_SERIF);
FOPGVTFont font = family.deriveFont(10, Collections.emptyMap());
GVTLineMetrics fopMetrics = font.getLineMetrics("", null);
LineMetrics awtMetrics = getAWTLineMetrics();
printDifference("Ascent", awtMetrics.getAscent(), fopMetrics.getAscent());
printDifference("Descent", awtMetrics.getDescent(), fopMetrics.getDescent());
printDifference("Height", awtMetrics.getHeight(), fopMetrics.getHeight());
printDifference("Leading", awtMetrics.getLeading(), fopMetrics.getLeading());
printDifference("StrikethroughOffset", awtMetrics.getStrikethroughOffset(),
fopMetrics.getStrikethroughOffset());
printDifference("StrikethroughThickness", awtMetrics.getStrikethroughThickness(),
fopMetrics.getStrikethroughThickness());
printDifference("UnderlineOffset", awtMetrics.getUnderlineOffset(),
fopMetrics.getUnderlineOffset());
printDifference("UnderlineThickness", awtMetrics.getUnderlineThickness(),
fopMetrics.getUnderlineThickness());
}
private LineMetrics getAWTLineMetrics() throws FontFormatException, IOException {
File fontFile = new File("test/resources/fonts/ttf/DejaVuLGCSerif.ttf");
java.awt.Font awtFont = java.awt.Font.createFont(java.awt.Font.TRUETYPE_FONT, fontFile).deriveFont(10f);
GraphicsEnvironment ge = GraphicsEnvironment.getLocalGraphicsEnvironment();
BufferedImage dummyImage = new BufferedImage(1000, 1000, BufferedImage.TYPE_INT_RGB);
FontRenderContext frc = ge.createGraphics(dummyImage).getFontRenderContext();
LineMetrics awtMetrics = awtFont.getLineMetrics("ABC", frc);
return awtMetrics;
}
private void printDifference(String value, float awt, float fop) {
System.out.println(String.format("%22s AWT: %10f FOP: %10f Difference: %.2f%%", value, awt, fop,
(fop - awt) / awt * 100));
}
}