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- /*
- * 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.fonts;
-
- //Java
- import java.text.DecimalFormat;
- import java.util.Map;
-
- /**
- * Generic MultiByte (CID) font
- */
- public class MultiByteFont extends CIDFont {
-
- private static int uniqueCounter = -1;
-
- private String ttcName = null;
- private String encoding = "Identity-H";
-
- private int defaultWidth = 0;
- private CIDFontType cidType = CIDFontType.CIDTYPE2;
-
- private String namePrefix = null; // Quasi unique prefix
-
- private CIDSubset subset = new CIDSubset();
-
- /** A map from Unicode indices to glyph indices */
- private BFEntry[] bfentries = null;
-
- /**
- * Default constructor
- */
- public MultiByteFont() {
- // Make sure that the 3 first glyphs are included
- subset.setupFirstThreeGlyphs();
-
- // Create a quasiunique prefix for fontname
- synchronized (this.getClass()) {
- uniqueCounter++;
- if (uniqueCounter > 99999 || uniqueCounter < 0) {
- uniqueCounter = 0; //We need maximum 5 character then we start again
- }
- }
- DecimalFormat counterFormat = new DecimalFormat("00000");
- String cntString = counterFormat.format(uniqueCounter);
-
- //Subset prefix as described in chapter 5.5.3 of PDF 1.4
- StringBuffer sb = new StringBuffer("E");
- for (int i = 0, c = cntString.length(); i < c; i++) {
- //translate numbers to uppercase characters
- sb.append((char)(cntString.charAt(i) + (65 - 48)));
- }
- sb.append("+");
- namePrefix = sb.toString();
-
- setFontType(FontType.TYPE0);
- }
-
- /** {@inheritDoc} */
- public int getDefaultWidth() {
- return defaultWidth;
- }
-
- /** {@inheritDoc} */
- public String getRegistry() {
- return "Adobe";
- }
-
- /** {@inheritDoc} */
- public String getOrdering() {
- return "UCS";
- }
-
- /** {@inheritDoc} */
- public int getSupplement() {
- return 0;
- }
-
- /** {@inheritDoc} */
- public CIDFontType getCIDType() {
- return cidType;
- }
-
- /**
- * Sets the CIDType.
- * @param cidType The cidType to set
- */
- public void setCIDType(CIDFontType cidType) {
- this.cidType = cidType;
- }
-
- private String getPrefixedFontName() {
- return namePrefix + FontUtil.stripWhiteSpace(super.getFontName());
- }
-
- /** {@inheritDoc} */
- public String getEmbedFontName() {
- if (isEmbeddable()) {
- return getPrefixedFontName();
- } else {
- return super.getFontName();
- }
- }
-
- /** {@inheritDoc} */
- public boolean isEmbeddable() {
- return !(getEmbedFileName() == null && getEmbedResourceName() == null);
- }
-
- /** {@inheritDoc} */
- public CIDSubset getCIDSubset() {
- return this.subset;
- }
-
- /** {@inheritDoc} */
- public String getEncodingName() {
- return encoding;
- }
-
- /** {@inheritDoc} */
- public int getWidth(int i, int size) {
- if (isEmbeddable()) {
- int glyphIndex = subset.getGlyphIndexForSubsetIndex(i);
- return size * width[glyphIndex];
- } else {
- return size * width[i];
- }
- }
-
- /** {@inheritDoc} */
- public int[] getWidths() {
- int[] arr = new int[width.length];
- System.arraycopy(width, 0, arr, 0, width.length - 1);
- return arr;
- }
-
- /**
- * Returns the glyph index for a Unicode character. The method returns 0 if there's no
- * such glyph in the character map.
- * @param c the Unicode character index
- * @return the glyph index (or 0 if the glyph is not available)
- */
- private int findGlyphIndex(char c) {
- int idx = (int)c;
- int retIdx = SingleByteEncoding.NOT_FOUND_CODE_POINT;
-
- for (int i = 0; (i < bfentries.length) && retIdx == 0; i++) {
- if (bfentries[i].getUnicodeStart() <= idx
- && bfentries[i].getUnicodeEnd() >= idx) {
-
- retIdx = bfentries[i].getGlyphStartIndex()
- + idx
- - bfentries[i].getUnicodeStart();
- }
- }
- return retIdx;
- }
-
- /** {@inheritDoc} */
- public char mapChar(char c) {
- notifyMapOperation();
- int glyphIndex = findGlyphIndex(c);
- if (glyphIndex == SingleByteEncoding.NOT_FOUND_CODE_POINT) {
- warnMissingGlyph(c);
- glyphIndex = findGlyphIndex(Typeface.NOT_FOUND);
- }
- if (isEmbeddable()) {
- glyphIndex = subset.mapSubsetChar(glyphIndex, c);
- }
- return (char)glyphIndex;
- }
-
- /** {@inheritDoc} */
- public boolean hasChar(char c) {
- return (findGlyphIndex(c) != SingleByteEncoding.NOT_FOUND_CODE_POINT);
- }
-
- /**
- * Sets the array of BFEntry instances which constitutes the Unicode to glyph index map for
- * a font. ("BF" means "base font")
- * @param entries the Unicode to glyph index map
- */
- public void setBFEntries(BFEntry[] entries) {
- this.bfentries = entries;
- }
-
- /**
- * Sets the defaultWidth.
- * @param defaultWidth The defaultWidth to set
- */
- public void setDefaultWidth(int defaultWidth) {
- this.defaultWidth = defaultWidth;
- }
-
- /**
- * Returns the TrueType Collection Name.
- * @return the TrueType Collection Name
- */
- public String getTTCName() {
- return ttcName;
- }
-
- /**
- * Sets the the TrueType Collection Name.
- * @param ttcName the TrueType Collection Name
- */
- public void setTTCName(String ttcName) {
- this.ttcName = ttcName;
- }
-
- /**
- * Sets the width array.
- * @param wds array of widths.
- */
- public void setWidthArray(int[] wds) {
- this.width = wds;
- }
-
- /**
- * Returns a Map of used Glyphs.
- * @return Map Map of used Glyphs
- */
- public Map getUsedGlyphs() {
- return subset.getSubsetGlyphs();
- }
-
- /** {@inheritDoc} */
- public char[] getCharsUsed() {
- if (!isEmbeddable()) {
- return null;
- }
- return subset.getSubsetChars();
- }
- }
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