1 files changed, 198 insertions, 0 deletions
diff --git a/test/java/org/apache/fop/render/pcl/fonts/PCLTTFFontReaderTestCase.java b/test/java/org/apache/fop/render/pcl/fonts/PCLTTFFontReaderTestCase.java
new file mode 100644
index 000000000..5673efbb4
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+++ b/test/java/org/apache/fop/render/pcl/fonts/PCLTTFFontReaderTestCase.java
@@ -0,0 +1,198 @@
+/*
+ * 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.render.pcl.fonts;
+
+import java.io.ByteArrayInputStream;
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.IOException;
+import java.util.Arrays;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+import org.junit.Before;
+import org.junit.Test;
+
+import static org.junit.Assert.assertArrayEquals;
+import static org.junit.Assert.assertEquals;
+import static org.mockito.Mockito.mock;
+import static org.mockito.Mockito.when;
+
+import org.apache.fop.fonts.CustomFont;
+import org.apache.fop.fonts.SingleByteFont;
+import org.apache.fop.render.java2d.CustomFontMetricsMapper;
+import org.apache.fop.render.pcl.fonts.PCLFontSegment.SegmentID;
+import org.apache.fop.render.pcl.fonts.truetype.PCLTTFFontReader;
+
+public class PCLTTFFontReaderTestCase {
+
+    private CustomFontMetricsMapper customFont = mock(CustomFontMetricsMapper.class);
+    private PCLByteWriterUtil byteWriter;
+    private static final String TEST_FONT_A = "./test/resources/fonts/ttf/DejaVuLGCSerif.ttf";
+
+    @Before
+    public void setUp() {
+        byteWriter = new PCLByteWriterUtil();
+    }
+
+    @Test
+    public void verifyFontAData() throws Exception {
+        CustomFont sbFont = mock(CustomFont.class);
+        when(sbFont.getInputStream()).thenReturn(new FileInputStream(new File(TEST_FONT_A)));
+        when(customFont.getRealFont()).thenReturn(sbFont);
+        SingleByteFont font = mock(SingleByteFont.class);
+        when(font.getGIDFromChar('h')).thenReturn(104);
+        when(font.getGIDFromChar('e')).thenReturn(101);
+        when(font.getGIDFromChar('l')).thenReturn(108);
+        when(font.getGIDFromChar('o')).thenReturn(111);
+        PCLTTFFontReader reader = new MockPCLTTFFontReader(customFont, byteWriter);
+        reader.setFont(font);
+        verifyFontData(reader);
+        validateOffsets(reader);
+        validateFontSegments(reader);
+    }
+
+    /**
+     * Compares the input font data against a sample of the data read and calculated by the reader. The assertions are
+     * made against data taken from the TrueType Font Analyzer tool.
+     * @param reader The reader
+     */
+    private void verifyFontData(PCLTTFFontReader reader) {
+        assertEquals(reader.getCellWidth(), 5015); // Bounding box X2 - X1
+        assertEquals(reader.getCellHeight(), 3254); // Bounding box Y2 - Y1
+        assertEquals(reader.getCapHeight(), 0); // OS2Table.capHeight
+        assertEquals(reader.getFontName(), "DejaVu LGC Serif"); // Full name read by TTFFont object
+        assertEquals(reader.getFirstCode(), 32); // Always 32 for bound font
+        assertEquals(reader.getLastCode(), 255); // Always 255 for bound font
+
+        // Values that require conversion tables (See PCLTTFFontReader.java)
+        assertEquals(reader.getStrokeWeight(), 0); // Weight Class 400 (regular) should be equivalent 0
+        assertEquals(reader.getSerifStyle(), 128); // Serif Style 0 should equal 0
+        assertEquals(reader.getWidthType(), 0); // Width Class 5 (regular) should be equivalent 0
+    }
+
+    private void validateOffsets(PCLTTFFontReader reader) throws IOException {
+        // Offsets are stored with their character ID with the array [offset, length]
+        Map<Integer, int[]> offsets = reader.getCharacterOffsets();
+
+        // Test data
+        int[] charC = {27644, 144}; // Char index = 99
+        int[] charDollar = {16044, 264}; // Char index = 36
+        int[] charOne = {17808, 176}; // Char index = 49
+        int[] charUpperD = {21236, 148}; // Char index = 68
+        int[] charUpperJ = {22140, 176}; // Char index = 74
+
+        assertArrayEquals(offsets.get(99), charC);
+        assertArrayEquals(offsets.get(36), charDollar);
+        assertArrayEquals(offsets.get(49), charOne);
+        assertArrayEquals(offsets.get(68), charUpperD);
+        assertArrayEquals(offsets.get(74), charUpperJ);
+    }
+
+    /**
+     * Verifies the font segment data copied originally from the TrueType font. Data was verified using TrueType Font
+     * Analyzer and PCLParaphernalia tool.
+     * @param reader The reader
+     * @throws IOException
+     */
+    private void validateFontSegments(PCLTTFFontReader reader) throws IOException {
+        HashMap<Character, Integer> mappedChars = new HashMap<Character, Integer>();
+        mappedChars.put('H', 1);
+        mappedChars.put('e', 1);
+        mappedChars.put('l', 1);
+        mappedChars.put('o', 1);
+
+        List<PCLFontSegment> segments = reader.getFontSegments(mappedChars);
+        assertEquals(segments.size(), 5);
+        for (PCLFontSegment segment : segments) {
+            if (segment.getIdentifier() == SegmentID.PA) {
+                // Panose
+                assertEquals(segment.getData().length, 10);
+                byte[] panose = {2, 6, 6, 3, 5, 6, 5, 2, 2, 4};
+                assertArrayEquals(segment.getData(), panose);
+            } else if (segment.getIdentifier() == SegmentID.GT) {
+                verifyGlobalTrueTypeData(segment, mappedChars.size());
+            } else if (segment.getIdentifier() == SegmentID.NULL) {
+                // Terminating segment
+                assertEquals(segment.getData().length, 0);
+            }
+        }
+    }
+
+    private void verifyGlobalTrueTypeData(PCLFontSegment segment, int mappedCharsSize)
+            throws IOException {
+        byte[] ttfData = segment.getData();
+        int currentPos = 0;
+        //Version
+        assertEquals(readInt(new byte[]{ttfData[currentPos++], ttfData[currentPos++]}), 1);
+        assertEquals(readInt(new byte[]{ttfData[currentPos++], ttfData[currentPos++]}), 0);
+        //Number of tables
+        int numTables = readInt(new byte[]{ttfData[currentPos++], ttfData[currentPos++]});
+        assertEquals(numTables, 8);
+        //Search range
+        assertEquals(readInt(new byte[]{ttfData[currentPos++], ttfData[currentPos++]}), 128);
+        //Entry Selector
+        assertEquals(readInt(new byte[]{ttfData[currentPos++], ttfData[currentPos++]}), 3);
+        //Range shift
+        assertEquals(readInt(new byte[]{ttfData[currentPos++], ttfData[currentPos++]}), 0);
+        String[] validTags = {"head", "hhea", "hmtx", "maxp", "gdir"};
+        int matches = 0;
+        for (int i = 0; i < numTables; i++) {
+            String tag = readTag(new byte[]{ttfData[currentPos++], ttfData[currentPos++],
+                    ttfData[currentPos++], ttfData[currentPos++]});
+            if (Arrays.asList(validTags).contains(tag)) {
+                matches++;
+            }
+            if (tag.equals("hmtx")) {
+                currentPos += 4;
+                int offset = readLong(new byte[]{ttfData[currentPos++], ttfData[currentPos++],
+                        ttfData[currentPos++], ttfData[currentPos++]});
+                int length = readLong(new byte[]{ttfData[currentPos++], ttfData[currentPos++],
+                        ttfData[currentPos++], ttfData[currentPos++]});
+                verifyHmtx(ttfData, offset, length, mappedCharsSize);
+            } else {
+                currentPos += 12;
+            }
+        }
+        assertEquals(matches, 5);
+    }
+
+    private void verifyHmtx(byte[] ttfData, int offset, int length, int mappedCharsSize)
+            throws IOException {
+        ByteArrayInputStream bais = new ByteArrayInputStream(ttfData);
+        byte[] subsetHmtx = new byte[length];
+        bais.skip(offset);
+        bais.read(subsetHmtx);
+        assertEquals(subsetHmtx.length, (mappedCharsSize + 32) * 4);
+    }
+
+    private int readInt(byte[] bytes) {
+        return ((0xFF & bytes[0]) << 8) | (0xFF & bytes[1]);
+    }
+
+    private int readLong(byte[] bytes) {
+        return ((0xFF & bytes[0]) << 24) | ((0xFF & bytes[1]) << 16) | ((0xFF & bytes[2]) << 8)
+                | (0xFF & bytes[3]);
+    }
+
+    private String readTag(byte[] tag) {
+        return new String(tag);
+    }
+}