123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280281282283284285286287288289290291292293294295296297298299300301302303304305306307308309310311312313314315316317318319320321322323324325326327328329330331332333334335336337338339340341342343344345346347348349350351352353354355356357358359360361362363364365366367368369370371372373374375376377378379380381382383384385386387388389390391392393394395396397398399400401402403404405406407408409410411412413414415416417418419420421422423424425426427428429430431432433434435436437438439440441442443444445446447448449450451452453454455456457458459460461462463464465466467468469470471472473474475476477478479480481482483484485486487488489490491492493494495496497498499500501502503504505506507508509510511512513514515516517518519520521522523524525526527528529530531532533534535536537538539540541542543544545546547548549550551552553554555556557558559560561562563564565566567568569570571572573574575576577578579580581582583584585586587588589590591592593594595596597598599600601602603604605606607608609610611612613614615616617618619620621622623624625626627628629630631632633634635636637638639640641642643644645646647648649650651652653654655656657658659660661662663664665666667668669670671672673674675676677678679680681682683684685686687688689690691692693694695696697698699700701702703704705706707708709710711712713714715 |
- /*
- * 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.ps;
-
- import java.io.FileNotFoundException;
- import java.io.IOException;
- import java.io.InputStream;
- import java.net.MalformedURLException;
- import java.util.HashMap;
- import java.util.HashSet;
- import java.util.Locale;
- import java.util.Map;
- import java.util.Set;
-
- import javax.xml.transform.Source;
- import javax.xml.transform.stream.StreamSource;
-
- import org.apache.commons.logging.Log;
- import org.apache.commons.logging.LogFactory;
-
- import org.apache.xmlgraphics.fonts.Glyphs;
- import org.apache.xmlgraphics.ps.DSCConstants;
- import org.apache.xmlgraphics.ps.PSGenerator;
- import org.apache.xmlgraphics.ps.PSResource;
- import org.apache.xmlgraphics.ps.dsc.ResourceTracker;
-
- import org.apache.fop.fonts.Base14Font;
- import org.apache.fop.fonts.CIDFontType;
- import org.apache.fop.fonts.CIDSubset;
- import org.apache.fop.fonts.CMapSegment;
- import org.apache.fop.fonts.CustomFont;
- import org.apache.fop.fonts.EmbeddingMode;
- import org.apache.fop.fonts.Font;
- import org.apache.fop.fonts.FontInfo;
- import org.apache.fop.fonts.FontType;
- import org.apache.fop.fonts.LazyFont;
- import org.apache.fop.fonts.MultiByteFont;
- import org.apache.fop.fonts.SingleByteEncoding;
- import org.apache.fop.fonts.SingleByteFont;
- import org.apache.fop.fonts.Typeface;
- import org.apache.fop.fonts.truetype.FontFileReader;
- import org.apache.fop.fonts.truetype.TTFFile;
- import org.apache.fop.fonts.truetype.TTFFile.PostScriptVersion;
- import org.apache.fop.fonts.truetype.TTFOutputStream;
- import org.apache.fop.fonts.truetype.TTFSubSetFile;
- import org.apache.fop.render.ps.fonts.PSTTFOutputStream;
- import org.apache.fop.util.HexEncoder;
-
- /**
- * Utility code for font handling in PostScript.
- */
- public class PSFontUtils extends org.apache.xmlgraphics.ps.PSFontUtils {
-
- /** logging instance */
- protected static final Log log = LogFactory.getLog(PSFontUtils.class);
- /**
- * Generates the PostScript code for the font dictionary. This method should only be
- * used if no "resource optimization" is performed, i.e. when the fonts are not embedded
- * in a second pass.
- * @param gen PostScript generator to use for output
- * @param fontInfo available fonts
- * @return a Map of PSResource instances representing all defined fonts (key: font key)
- * @throws IOException in case of an I/O problem
- */
- public static Map writeFontDict(PSGenerator gen, FontInfo fontInfo)
- throws IOException {
- return writeFontDict(gen, fontInfo, null);
- }
-
- /**
- * Generates the PostScript code for the font dictionary. This method should only be
- * used if no "resource optimization" is performed, i.e. when the fonts are not embedded
- * in a second pass.
- * @param gen PostScript generator to use for output
- * @param fontInfo available fonts
- * @param eventProducer to report events
- * @return a Map of PSResource instances representing all defined fonts (key: font key)
- * @throws IOException in case of an I/O problem
- */
- public static Map writeFontDict(PSGenerator gen, FontInfo fontInfo,
- PSEventProducer eventProducer) throws IOException {
- return writeFontDict(gen, fontInfo, fontInfo.getFonts(), true, eventProducer);
- }
-
- /**
- * Generates the PostScript code for the font dictionary. This method assumes all used
- * fonts and characters are known, i.e. when PostScript is generated with resource
- * optimization turned on.
- * @param gen PostScript generator to use for output
- * @param fontInfo available fonts
- * @param fonts the set of fonts to work with
- * @param eventProducer the event producer
- * @return a Map of PSResource instances representing all defined fonts (key: font key)
- * @throws IOException in case of an I/O problem
- */
- public static Map writeFontDict(PSGenerator gen, FontInfo fontInfo, Map<String, Typeface> fonts,
- PSEventProducer eventProducer) throws IOException {
- return writeFontDict(gen, fontInfo, fonts, false, eventProducer);
- }
-
- /**
- * Generates the PostScript code for the font dictionary.
- * @param gen PostScript generator to use for output
- * @param fontInfo available fonts
- * @param fonts the set of fonts to work with
- * @param encodeAllCharacters true if all characters shall be encoded using additional,
- * generated encodings.
- * @return a Map of PSResource instances representing all defined fonts (key: font key)
- * @throws IOException in case of an I/O problem
- */
- private static Map writeFontDict(PSGenerator gen, FontInfo fontInfo,
- Map<String, Typeface> fonts, boolean encodeAllCharacters, PSEventProducer eventProducer)
- throws IOException {
- gen.commentln("%FOPBeginFontDict");
-
- Map fontResources = new HashMap();
- for (String key : fonts.keySet()) {
- Typeface tf = getTypeFace(fontInfo, fonts, key);
- PSResource fontRes = new PSResource(PSResource.TYPE_FONT, tf.getEmbedFontName());
- PSFontResource fontResource = embedFont(gen, tf, fontRes, eventProducer);
- fontResources.put(key, fontResource);
-
- if (tf instanceof SingleByteFont) {
- SingleByteFont sbf = (SingleByteFont)tf;
-
- if (encodeAllCharacters) {
- sbf.encodeAllUnencodedCharacters();
- }
-
- for (int i = 0, c = sbf.getAdditionalEncodingCount(); i < c; i++) {
- SingleByteEncoding encoding = sbf.getAdditionalEncoding(i);
- defineEncoding(gen, encoding);
- String postFix = "_" + (i + 1);
- PSResource derivedFontRes;
- if (tf.getFontType() == FontType.TRUETYPE
- && sbf.getTrueTypePostScriptVersion() != PostScriptVersion.V2) {
- derivedFontRes = defineDerivedTrueTypeFont(gen, eventProducer,
- tf.getEmbedFontName(), tf.getEmbedFontName() + postFix, encoding,
- sbf.getCMap());
- } else {
- derivedFontRes = defineDerivedFont(gen, tf.getEmbedFontName(),
- tf.getEmbedFontName() + postFix, encoding.getName());
- }
- fontResources.put(key + postFix,
- PSFontResource.createFontResource(derivedFontRes));
- }
- }
- }
- gen.commentln("%FOPEndFontDict");
- reencodeFonts(gen, fonts);
- return fontResources;
- }
-
- private static void reencodeFonts(PSGenerator gen, Map<String, Typeface> fonts)
- throws IOException {
- ResourceTracker tracker = gen.getResourceTracker();
-
- if (!tracker.isResourceSupplied(WINANSI_ENCODING_RESOURCE)) {
- //Only out Base 14 fonts still use that
- defineWinAnsiEncoding(gen);
- }
- gen.commentln("%FOPBeginFontReencode");
-
- //Rewrite font encodings
- for (String key : fonts.keySet()) {
- Typeface tf = fonts.get(key);
- if (tf instanceof LazyFont) {
- tf = ((LazyFont)tf).getRealFont();
- if (tf == null) {
- continue;
- }
- }
- if (null == tf.getEncodingName()) {
- //ignore (ZapfDingbats and Symbol used to run through here, kept for safety reasons)
- } else if ("SymbolEncoding".equals(tf.getEncodingName())) {
- //ignore (no encoding redefinition)
- } else if ("ZapfDingbatsEncoding".equals(tf.getEncodingName())) {
- //ignore (no encoding redefinition)
- } else {
- if (tf instanceof Base14Font) {
- //Our Base 14 fonts don't use the default encoding
- redefineFontEncoding(gen, tf.getEmbedFontName(), tf.getEncodingName());
- } else if (tf instanceof SingleByteFont) {
- SingleByteFont sbf = (SingleByteFont)tf;
- if (!sbf.isUsingNativeEncoding()) {
- //Font has been configured to use an encoding other than the default one
- redefineFontEncoding(gen, tf.getEmbedFontName(), tf.getEncodingName());
- }
- }
- }
- }
- gen.commentln("%FOPEndFontReencode");
- }
-
- private static Typeface getTypeFace(FontInfo fontInfo, Map<String, Typeface> fonts,
- String key) {
- Typeface tf = fonts.get(key);
- if (tf instanceof LazyFont) {
- tf = ((LazyFont)tf).getRealFont();
- }
- if (tf == null) {
- //This is to avoid an NPE if a malconfigured font is in the configuration but not
- //used in the document. If it were used, we wouldn't get this far.
- String fallbackKey = fontInfo.getInternalFontKey(Font.DEFAULT_FONT);
- tf = fonts.get(fallbackKey);
- }
- return tf;
- }
-
- private static PSFontResource embedFont(PSGenerator gen, Typeface tf, PSResource fontRes,
- PSEventProducer eventProducer) throws IOException {
- FontType fontType = tf.getFontType();
- PSFontResource fontResource = null;
- if (!(fontType == FontType.TYPE1 || fontType == FontType.TRUETYPE
- || fontType == FontType.TYPE0) || !(tf instanceof CustomFont)) {
- gen.writeDSCComment(DSCConstants.INCLUDE_RESOURCE, fontRes);
- fontResource = PSFontResource.createFontResource(fontRes);
- return fontResource;
- }
- CustomFont cf = (CustomFont)tf;
- if (isEmbeddable(cf)) {
- InputStream in = getInputStreamOnFont(gen, cf);
- if (in == null) {
- gen.commentln("%WARNING: Could not embed font: " + cf.getEmbedFontName());
- log.warn("Font " + cf.getEmbedFontName() + " is marked as supplied in the"
- + " PostScript file but could not be embedded!");
- gen.writeDSCComment(DSCConstants.INCLUDE_RESOURCE, fontRes);
- fontResource = PSFontResource.createFontResource(fontRes);
- return fontResource;
- }
- if (fontType == FontType.TYPE0) {
- if (gen.embedIdentityH()) {
- checkPostScriptLevel3(gen, eventProducer);
- /*
- * First CID-keyed font to be embedded; add
- * %%IncludeResource: comment for ProcSet CIDInit.
- */
- gen.includeProcsetCIDInitResource();
- }
- PSResource cidFontResource = embedType2CIDFont(gen,
- (MultiByteFont) tf, in);
- fontResource = PSFontResource.createFontResource(fontRes,
- gen.getProcsetCIDInitResource(), gen.getIdentityHCMapResource(),
- cidFontResource);
- }
- gen.writeDSCComment(DSCConstants.BEGIN_RESOURCE, fontRes);
- if (fontType == FontType.TYPE1) {
- embedType1Font(gen, in);
- fontResource = PSFontResource.createFontResource(fontRes);
- } else if (fontType == FontType.TRUETYPE) {
- embedTrueTypeFont(gen, (SingleByteFont) tf, in);
- fontResource = PSFontResource.createFontResource(fontRes);
- } else {
- composeType0Font(gen, (MultiByteFont) tf, in);
- }
- gen.writeDSCComment(DSCConstants.END_RESOURCE);
- gen.getResourceTracker().registerSuppliedResource(fontRes);
- }
- return fontResource;
- }
-
- private static void checkPostScriptLevel3(PSGenerator gen, PSEventProducer eventProducer) {
- if (gen.getPSLevel() < 3) {
- if (eventProducer != null) {
- eventProducer.postscriptLevel3Needed(gen);
- } else {
- throw new IllegalStateException("PostScript Level 3 is"
- + " required to use TrueType fonts,"
- + " configured level is "
- + gen.getPSLevel());
- }
- }
- }
-
- private static void embedTrueTypeFont(PSGenerator gen,
- SingleByteFont font, InputStream fontStream) throws IOException {
- /* See Adobe Technical Note #5012, "The Type 42 Font Format Specification" */
- gen.commentln("%!PS-TrueTypeFont-65536-65536-1"); // TODO TrueType & font versions
- gen.writeln("11 dict begin");
- if (font.getEmbeddingMode() == EmbeddingMode.AUTO) {
- font.setEmbeddingMode(EmbeddingMode.SUBSET);
- }
- FontFileReader reader = new FontFileReader(fontStream);
- TTFFile ttfFile = new TTFFile();
- ttfFile.readFont(reader, font.getFullName());
- createType42DictionaryEntries(gen, font, font.getCMap(), ttfFile);
- gen.writeln("FontName currentdict end definefont pop");
- }
-
- private static void createType42DictionaryEntries(PSGenerator gen, CustomFont font,
- CMapSegment[] cmap, TTFFile ttfFile) throws IOException {
- gen.write("/FontName /");
- gen.write(font.getEmbedFontName());
- gen.writeln(" def");
- gen.writeln("/PaintType 0 def");
- gen.writeln("/FontMatrix [1 0 0 1 0 0] def");
- writeFontBBox(gen, font);
- gen.writeln("/FontType 42 def");
- gen.writeln("/Encoding 256 array");
- gen.writeln("0 1 255{1 index exch/.notdef put}for");
- boolean buildCharStrings;
- Set<String> glyphNames = new HashSet<String>();
- if (font.getFontType() == FontType.TYPE0 && font.getEmbeddingMode() != EmbeddingMode.FULL) {
- //"/Encoding" is required but ignored for CID fonts
- //so we keep it minimal to save space
- buildCharStrings = false;
- } else {
- buildCharStrings = true;
- for (int i = 0; i < Glyphs.WINANSI_ENCODING.length; i++) {
- gen.write("dup ");
- gen.write(i);
- gen.write(" /");
- String glyphName = Glyphs.charToGlyphName(Glyphs.WINANSI_ENCODING[i]);
- if (glyphName.equals("")) {
- gen.write(Glyphs.NOTDEF);
- } else {
- gen.write(glyphName);
- glyphNames.add(glyphName);
- }
- gen.writeln(" put");
- }
- }
- gen.writeln("readonly def");
- TTFOutputStream ttfOut = new PSTTFOutputStream(gen);
- ttfFile.stream(ttfOut);
-
- buildCharStrings(gen, buildCharStrings, cmap, glyphNames, font);
- }
-
- private static void buildCharStrings(PSGenerator gen, boolean buildCharStrings,
- CMapSegment[] cmap, Set<String> glyphNames, CustomFont font) throws IOException {
- gen.write("/CharStrings ");
- if (!buildCharStrings) {
- gen.write(1);
- } else if (font.getEmbeddingMode() != EmbeddingMode.FULL) {
- int charCount = 1; //1 for .notdef
- for (CMapSegment segment : cmap) {
- charCount += segment.getUnicodeEnd() - segment.getUnicodeStart() + 1;
- }
- gen.write(charCount);
- } else {
- gen.write(font.getCMap().length);
- }
- gen.writeln(" dict dup begin");
- gen.write("/");
- gen.write(Glyphs.NOTDEF);
- gen.writeln(" 0 def"); // .notdef always has to be at index 0
- if (!buildCharStrings) {
- // If we're not building the full CharStrings we can end here
- gen.writeln("end readonly def");
- return;
- }
- if (font.getEmbeddingMode() != EmbeddingMode.FULL) {
- //Only performed in singly-byte mode, ignored for CID fonts
- for (CMapSegment segment : cmap) {
- int glyphIndex = segment.getGlyphStartIndex();
- for (int ch = segment.getUnicodeStart(); ch <= segment.getUnicodeEnd(); ch++) {
- char ch16 = (char)ch; //TODO Handle Unicode characters beyond 16bit
- String glyphName = Glyphs.charToGlyphName(ch16);
- if ("".equals(glyphName)) {
- glyphName = "u" + Integer.toHexString(ch).toUpperCase(Locale.ENGLISH);
- }
- writeGlyphDefs(gen, glyphName, glyphIndex);
-
- glyphIndex++;
- }
- }
- } else {
- for (String name : glyphNames) {
- writeGlyphDefs(gen, name,
- getGlyphIndex(Glyphs.getUnicodeSequenceForGlyphName(name).charAt(0),
- font.getCMap()));
- }
- }
- gen.writeln("end readonly def");
- }
-
- private static void writeGlyphDefs(PSGenerator gen, String glyphName, int glyphIndex)
- throws IOException {
- gen.write("/");
- gen.write(glyphName);
- gen.write(" ");
- gen.write(glyphIndex);
- gen.writeln(" def");
- }
-
- private static int getGlyphIndex(char c, CMapSegment[] cmap) {
- for (CMapSegment segment : cmap) {
- if (segment.getUnicodeStart() <= c && c <= segment.getUnicodeEnd()) {
- return segment.getGlyphStartIndex() + c - segment.getUnicodeStart();
- }
- }
- return 0;
- }
-
- private static void composeType0Font(PSGenerator gen, MultiByteFont font,
- InputStream fontStream) throws IOException {
- String psName = font.getEmbedFontName();
- gen.write("/");
- gen.write(psName);
- gen.write(" /Identity-H [/");
- gen.write(psName);
- gen.writeln("] composefont pop");
- }
-
- private static PSResource embedType2CIDFont(PSGenerator gen,
- MultiByteFont font, InputStream fontStream) throws IOException {
- assert font.getCIDType() == CIDFontType.CIDTYPE2;
-
- String psName = font.getEmbedFontName();
- gen.write("%%BeginResource: CIDFont ");
- gen.writeln(psName);
-
- gen.write("%%Title: (");
- gen.write(psName);
- gen.writeln(" Adobe Identity 0)");
-
- gen.writeln("%%Version: 1"); // TODO use font revision?
- gen.writeln("/CIDInit /ProcSet findresource begin");
- gen.writeln("20 dict begin");
-
- gen.write("/CIDFontName /");
- gen.write(psName);
- gen.writeln(" def");
-
- gen.writeln("/CIDFontVersion 1 def"); // TODO same as %%Version above
-
- gen.write("/CIDFontType ");
- gen.write(font.getCIDType().getValue());
- gen.writeln(" def");
-
- gen.writeln("/CIDSystemInfo 3 dict dup begin");
- gen.writeln(" /Registry (Adobe) def");
- gen.writeln(" /Ordering (Identity) def");
- gen.writeln(" /Supplement 0 def");
- gen.writeln("end def");
-
- // TODO UIDBase (and UIDOffset in CMap) necessary if PostScript Level 1 & 2
- // interpreters are to be supported
- // (Level 1: with composite font extensions; Level 2: those that do not offer
- // native mode support for CID-keyed fonts)
-
- // TODO XUID (optional but strongly recommended)
-
- // TODO /FontInfo
-
- gen.write("/CIDCount ");
- CIDSubset cidSubset = font.getCIDSubset();
- int subsetSize = cidSubset.getSubsetSize();
- gen.write(subsetSize);
- gen.writeln(" def");
- gen.writeln("/GDBytes 2 def"); // TODO always 2?
- gen.writeln("/CIDMap [<");
- int colCount = 0;
- int lineCount = 1;
- for (int cid = 0; cid < subsetSize; cid++) {
- if (colCount++ == 20) {
- gen.newLine();
- colCount = 1;
- if (lineCount++ == 800) {
- gen.writeln("> <");
- lineCount = 1;
- }
- }
- String gid;
- if (font.getEmbeddingMode() != EmbeddingMode.FULL) {
- gid = HexEncoder.encode(cid, 4);
- } else {
- gid = HexEncoder.encode(cidSubset.getGlyphIndexForSubsetIndex(cid), 4);
- }
- gen.write(gid);
- }
- gen.writeln(">] def");
- FontFileReader reader = new FontFileReader(fontStream);
-
- TTFFile ttfFile;
- if (font.getEmbeddingMode() != EmbeddingMode.FULL) {
- ttfFile = new TTFSubSetFile();
- ttfFile.readFont(reader, font.getTTCName(), font.getUsedGlyphs());
- } else {
- ttfFile = new TTFFile();
- ttfFile.readFont(reader, font.getTTCName());
- }
-
-
- createType42DictionaryEntries(gen, font, new CMapSegment[0], ttfFile);
- gen.writeln("CIDFontName currentdict end /CIDFont defineresource pop");
- gen.writeln("end");
- gen.writeln("%%EndResource");
- PSResource cidFontResource = new PSResource(PSResource.TYPE_CIDFONT, psName);
- gen.getResourceTracker().registerSuppliedResource(cidFontResource);
- return cidFontResource;
- }
-
- private static void writeFontBBox(PSGenerator gen, CustomFont font) throws IOException {
- int[] bbox = font.getFontBBox();
- gen.write("/FontBBox[");
- for (int i = 0; i < 4; i++) {
- gen.write(" ");
- gen.write(bbox[i]);
- }
- gen.writeln(" ] def");
- }
-
- private static boolean isEmbeddable(CustomFont font) {
- return font.isEmbeddable();
- }
-
- private static InputStream getInputStreamOnFont(PSGenerator gen, CustomFont font)
- throws IOException {
- if (isEmbeddable(font)) {
- Source source = font.getEmbedFileSource();
- if (source == null && font.getEmbedResourceName() != null) {
- source = new StreamSource(PSFontUtils.class
- .getResourceAsStream(font.getEmbedResourceName()));
- }
- if (source == null) {
- return null;
- }
- InputStream in = null;
- if (source instanceof StreamSource) {
- in = ((StreamSource) source).getInputStream();
- }
- if (in == null && source.getSystemId() != null) {
- try {
- in = new java.net.URL(source.getSystemId()).openStream();
- } catch (MalformedURLException e) {
- new FileNotFoundException(
- "File not found. URL could not be resolved: "
- + e.getMessage());
- }
- }
- if (in == null) {
- return null;
- }
- //Make sure the InputStream is decorated with a BufferedInputStream
- if (!(in instanceof java.io.BufferedInputStream)) {
- in = new java.io.BufferedInputStream(in);
- }
- return in;
- } else {
- return null;
- }
- }
-
- /**
- * Determines the set of fonts that will be supplied with the PS file and registers them
- * with the resource tracker. All the fonts that are being processed are returned as a Map.
- * @param resTracker the resource tracker
- * @param fontInfo available fonts
- * @param fonts the set of fonts to work with
- * @return a Map of PSResource instances representing all defined fonts (key: font key)
- */
- public static Map determineSuppliedFonts(ResourceTracker resTracker,
- FontInfo fontInfo, Map<String, Typeface> fonts) {
- Map fontResources = new java.util.HashMap();
- for (String key : fonts.keySet()) {
- Typeface tf = getTypeFace(fontInfo, fonts, key);
- PSResource fontRes = new PSResource("font", tf.getEmbedFontName());
- fontResources.put(key, fontRes);
- FontType fontType = tf.getFontType();
- if (fontType == FontType.TYPE1 || fontType == FontType.TRUETYPE
- || fontType == FontType.TYPE0) {
- if (tf instanceof CustomFont) {
- CustomFont cf = (CustomFont)tf;
- if (isEmbeddable(cf)) {
- if (fontType == FontType.TYPE0) {
- resTracker.registerSuppliedResource(
- new PSResource(PSResource.TYPE_CIDFONT, tf.getEmbedFontName()));
- resTracker.registerSuppliedResource(
- new PSResource(PSResource.TYPE_CMAP, "Identity-H"));
- }
- resTracker.registerSuppliedResource(fontRes);
- }
- if (tf instanceof SingleByteFont) {
- SingleByteFont sbf = (SingleByteFont)tf;
- for (int i = 0, c = sbf.getAdditionalEncodingCount(); i < c; i++) {
- SingleByteEncoding encoding = sbf.getAdditionalEncoding(i);
- PSResource encodingRes = new PSResource(
- PSResource.TYPE_ENCODING, encoding.getName());
- resTracker.registerSuppliedResource(encodingRes);
- PSResource derivedFontRes = new PSResource(
- PSResource.TYPE_FONT, tf.getEmbedFontName() + "_" + (i + 1));
- resTracker.registerSuppliedResource(derivedFontRes);
- }
- }
- }
- }
- }
- return fontResources;
- }
-
- /**
- * Defines the single-byte encoding for use in PostScript files.
- * @param gen the PostScript generator
- * @param encoding the single-byte encoding
- * @return the PSResource instance that represents the encoding
- * @throws IOException In case of an I/O problem
- */
- public static PSResource defineEncoding(PSGenerator gen, SingleByteEncoding encoding)
- throws IOException {
- PSResource res = new PSResource(PSResource.TYPE_ENCODING, encoding.getName());
- gen.writeDSCComment(DSCConstants.BEGIN_RESOURCE, res);
- gen.writeln("/" + encoding.getName() + " [");
- String[] charNames = encoding.getCharNameMap();
- for (int i = 0; i < 256; i++) {
- if (i > 0) {
- if ((i % 5) == 0) {
- gen.newLine();
- } else {
- gen.write(" ");
- }
- }
- String glyphname = null;
- if (i < charNames.length) {
- glyphname = charNames[i];
- }
- if (glyphname == null || "".equals(glyphname)) {
- glyphname = Glyphs.NOTDEF;
- }
- gen.write("/");
- gen.write(glyphname);
- }
- gen.newLine();
- gen.writeln("] def");
- gen.writeDSCComment(DSCConstants.END_RESOURCE);
- gen.getResourceTracker().registerSuppliedResource(res);
- return res;
- }
-
- /**
- * Derives a new font based on an existing font with a given encoding. The encoding must
- * have been registered before.
- * @param gen the PostScript generator
- * @param baseFontName the font name of the font to derive from
- * @param fontName the font name of the new font to be define
- * @param encoding the new encoding (must be predefined in the PS file)
- * @return the PSResource representing the derived font
- * @throws IOException In case of an I/O problem
- */
- public static PSResource defineDerivedFont
- (PSGenerator gen, String baseFontName, String fontName, String encoding)
- throws IOException {
- PSResource res = new PSResource(PSResource.TYPE_FONT, fontName);
- gen.writeDSCComment(DSCConstants.BEGIN_RESOURCE, res);
- gen.commentln("%XGCDependencies: font " + baseFontName);
- gen.commentln("%XGC+ encoding " + encoding);
- gen.writeln("/" + baseFontName + " findfont");
- gen.writeln("dup length dict begin");
- gen.writeln(" {1 index /FID ne {def} {pop pop} ifelse} forall");
- gen.writeln(" /Encoding " + encoding + " def");
- gen.writeln(" currentdict");
- gen.writeln("end");
- gen.writeln("/" + fontName + " exch definefont pop");
- gen.writeDSCComment(DSCConstants.END_RESOURCE);
- gen.getResourceTracker().registerSuppliedResource(res);
- return res;
- }
-
- private static PSResource defineDerivedTrueTypeFont(PSGenerator gen,
- PSEventProducer eventProducer, String baseFontName, String fontName,
- SingleByteEncoding encoding, CMapSegment[] cmap) throws IOException {
- checkPostScriptLevel3(gen, eventProducer);
- PSResource res = new PSResource(PSResource.TYPE_FONT, fontName);
- gen.writeDSCComment(DSCConstants.BEGIN_RESOURCE, res);
- gen.commentln("%XGCDependencies: font " + baseFontName);
- gen.commentln("%XGC+ encoding " + encoding.getName());
- gen.writeln("/" + baseFontName + " findfont");
- gen.writeln("dup length dict begin");
- gen.writeln(" {1 index /FID ne {def} {pop pop} ifelse} forall");
- gen.writeln(" /Encoding " + encoding.getName() + " def");
-
- gen.writeln(" /CharStrings 256 dict dup begin");
- String[] charNameMap = encoding.getCharNameMap();
- char[] unicodeCharMap = encoding.getUnicodeCharMap();
- assert charNameMap.length == unicodeCharMap.length;
- for (int i = 0; i < charNameMap.length; i++) {
- String glyphName = charNameMap[i];
- gen.write(" /");
- gen.write(glyphName);
- gen.write(" ");
- if (glyphName.equals(".notdef")) {
- gen.write(0);
- } else {
- gen.write(getGlyphIndex(unicodeCharMap[i], cmap));
- }
- gen.writeln(" def");
- }
- gen.writeln(" end readonly def");
-
- gen.writeln(" currentdict");
- gen.writeln("end");
- gen.writeln("/" + fontName + " exch definefont pop");
- gen.writeDSCComment(DSCConstants.END_RESOURCE);
- gen.getResourceTracker().registerSuppliedResource(res);
- return res;
- }
- }
|