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Diffstat (limited to 'src/main/java/com/lowagie/text/pdf/BaseFont.java')
| -rw-r--r-- | src/main/java/com/lowagie/text/pdf/BaseFont.java | 1137 |
1 files changed, 0 insertions, 1137 deletions
diff --git a/src/main/java/com/lowagie/text/pdf/BaseFont.java b/src/main/java/com/lowagie/text/pdf/BaseFont.java deleted file mode 100644 index a393e38..0000000 --- a/src/main/java/com/lowagie/text/pdf/BaseFont.java +++ /dev/null @@ -1,1137 +0,0 @@ -/*
- * $Id: BaseFont.java,v 1.68 2006/02/23 16:45:48 psoares33 Exp $
- * $Name: $
- *
- * Copyright 2000, 2001, 2002 by Paulo Soares.
- *
- * The contents of this file are subject to the Mozilla Public License Version 1.1
- * (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.mozilla.org/MPL/
- *
- * Software distributed under the License is distributed on an "AS IS" basis,
- * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
- * for the specific language governing rights and limitations under the License.
- *
- * The Original Code is 'iText, a free JAVA-PDF library'.
- *
- * The Initial Developer of the Original Code is Bruno Lowagie. Portions created by
- * the Initial Developer are Copyright (C) 1999, 2000, 2001, 2002 by Bruno Lowagie.
- * All Rights Reserved.
- * Co-Developer of the code is Paulo Soares. Portions created by the Co-Developer
- * are Copyright (C) 2000, 2001, 2002 by Paulo Soares. All Rights Reserved.
- *
- * Contributor(s): all the names of the contributors are added in the source code
- * where applicable.
- *
- * Alternatively, the contents of this file may be used under the terms of the
- * LGPL license (the "GNU LIBRARY GENERAL PUBLIC LICENSE"), in which case the
- * provisions of LGPL are applicable instead of those above. If you wish to
- * allow use of your version of this file only under the terms of the LGPL
- * License and not to allow others to use your version of this file under
- * the MPL, indicate your decision by deleting the provisions above and
- * replace them with the notice and other provisions required by the LGPL.
- * If you do not delete the provisions above, a recipient may use your version
- * of this file under either the MPL or the GNU LIBRARY GENERAL PUBLIC LICENSE.
- *
- * This library is free software; you can redistribute it and/or modify it
- * under the terms of the MPL as stated above or under the terms of the GNU
- * Library General Public License as published by the Free Software Foundation;
- * either version 2 of the License, or any later version.
- *
- * This library 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 Library general Public License for more
- * details.
- *
- * If you didn't download this code from the following link, you should check if
- * you aren't using an obsolete version:
- * http://www.lowagie.com/iText/
- */
-
-package com.lowagie.text.pdf;
-import java.io.*;
-import com.lowagie.text.DocumentException;
-import java.util.HashMap;
-import java.util.ArrayList;
-import java.util.Iterator;
-
-/**
- * Base class for the several font types supported
- *
- * @author Paulo Soares (psoares@consiste.pt)
- */
-
-public abstract class BaseFont {
-
- /** This is a possible value of a base 14 type 1 font */
- public static final String COURIER = "Courier";
-
- /** This is a possible value of a base 14 type 1 font */
- public static final String COURIER_BOLD = "Courier-Bold";
-
- /** This is a possible value of a base 14 type 1 font */
- public static final String COURIER_OBLIQUE = "Courier-Oblique";
-
- /** This is a possible value of a base 14 type 1 font */
- public static final String COURIER_BOLDOBLIQUE = "Courier-BoldOblique";
-
- /** This is a possible value of a base 14 type 1 font */
- public static final String HELVETICA = "Helvetica";
-
- /** This is a possible value of a base 14 type 1 font */
- public static final String HELVETICA_BOLD = "Helvetica-Bold";
-
- /** This is a possible value of a base 14 type 1 font */
- public static final String HELVETICA_OBLIQUE = "Helvetica-Oblique";
-
- /** This is a possible value of a base 14 type 1 font */
- public static final String HELVETICA_BOLDOBLIQUE = "Helvetica-BoldOblique";
-
- /** This is a possible value of a base 14 type 1 font */
- public static final String SYMBOL = "Symbol";
-
- /** This is a possible value of a base 14 type 1 font */
- public static final String TIMES_ROMAN = "Times-Roman";
-
- /** This is a possible value of a base 14 type 1 font */
- public static final String TIMES_BOLD = "Times-Bold";
-
- /** This is a possible value of a base 14 type 1 font */
- public static final String TIMES_ITALIC = "Times-Italic";
-
- /** This is a possible value of a base 14 type 1 font */
- public static final String TIMES_BOLDITALIC = "Times-BoldItalic";
-
- /** This is a possible value of a base 14 type 1 font */
- public static final String ZAPFDINGBATS = "ZapfDingbats";
-
- /** The maximum height above the baseline reached by glyphs in this
- * font, excluding the height of glyphs for accented characters.
- */
- public static final int ASCENT = 1;
- /** The y coordinate of the top of flat capital letters, measured from
- * the baseline.
- */
- public static final int CAPHEIGHT = 2;
- /** The maximum depth below the baseline reached by glyphs in this
- * font. The value is a negative number.
- */
- public static final int DESCENT = 3;
- /** The angle, expressed in degrees counterclockwise from the vertical,
- * of the dominant vertical strokes of the font. The value is
- * negative for fonts that slope to the right, as almost all italic fonts do.
- */
- public static final int ITALICANGLE = 4;
- /** The lower left x glyph coordinate.
- */
- public static final int BBOXLLX = 5;
- /** The lower left y glyph coordinate.
- */
- public static final int BBOXLLY = 6;
- /** The upper right x glyph coordinate.
- */
- public static final int BBOXURX = 7;
- /** The upper right y glyph coordinate.
- */
- public static final int BBOXURY = 8;
-
- /** java.awt.Font property */
- public static final int AWT_ASCENT = 9;
- /** java.awt.Font property */
- public static final int AWT_DESCENT = 10;
- /** java.awt.Font property */
- public static final int AWT_LEADING = 11;
- /** java.awt.Font property */
- public static final int AWT_MAXADVANCE = 12;
-
- /** The font is Type 1.
- */
- public static final int FONT_TYPE_T1 = 0;
- /** The font is True Type with a standard encoding.
- */
- public static final int FONT_TYPE_TT = 1;
- /** The font is CJK.
- */
- public static final int FONT_TYPE_CJK = 2;
- /** The font is True Type with a Unicode encoding.
- */
- public static final int FONT_TYPE_TTUNI = 3;
- /** A font already inside the document.
- */
- public static final int FONT_TYPE_DOCUMENT = 4;
- /** A Type3 font.
- */
- public static final int FONT_TYPE_T3 = 5;
- /** The Unicode encoding with horizontal writing.
- */
- public static final String IDENTITY_H = "Identity-H";
- /** The Unicode encoding with vertical writing.
- */
- public static final String IDENTITY_V = "Identity-V";
-
- /** A possible encoding. */
- public static final String CP1250 = "Cp1250";
-
- /** A possible encoding. */
- public static final String CP1252 = "Cp1252";
-
- /** A possible encoding. */
- public static final String CP1257 = "Cp1257";
-
- /** A possible encoding. */
- public static final String WINANSI = "Cp1252";
-
- /** A possible encoding. */
- public static final String MACROMAN = "MacRoman";
-
- public static final int[] CHAR_RANGE_LATIN = {0, 0x17f, 0x2000, 0x206f, 0x20a0, 0x20cf, 0xfb00, 0xfb06};
- public static final int[] CHAR_RANGE_ARABIC = {0, 0x7f, 0x0600, 0x067f, 0x20a0, 0x20cf, 0xfb50, 0xfbff, 0xfe70, 0xfeff};
- public static final int[] CHAR_RANGE_HEBREW = {0, 0x7f, 0x0590, 0x05ff, 0x20a0, 0x20cf, 0xfb1d, 0xfb4f};
- public static final int[] CHAR_RANGE_CYRILLIC = {0, 0x7f, 0x0400, 0x052f, 0x2000, 0x206f, 0x20a0, 0x20cf};
-
-/** if the font has to be embedded */
- public static final boolean EMBEDDED = true;
-
-/** if the font doesn't have to be embedded */
- public static final boolean NOT_EMBEDDED = false;
-/** if the font has to be cached */
- public static final boolean CACHED = true;
-/** if the font doesn't have to be cached */
- public static final boolean NOT_CACHED = false;
-
- /** The path to the font resources. */
- public static final String RESOURCE_PATH = "com/lowagie/text/pdf/fonts/";
- /** The fake CID code that represents a newline. */
- public static final char CID_NEWLINE = '\u7fff';
-
- protected ArrayList subsetRanges;
- /** The font type.
- */
- int fontType;
-/** a not defined character in a custom PDF encoding */
- public static final String notdef = ".notdef";
-
-/** table of characters widths for this encoding */
- protected int widths[] = new int[256];
-
-/** encoding names */
- protected String differences[] = new String[256];
-/** same as differences but with the unicode codes */
- protected char unicodeDifferences[] = new char[256];
-
- protected int charBBoxes[][] = new int[256][];
-/** encoding used with this font */
- protected String encoding;
-
-/** true if the font is to be embedded in the PDF */
- protected boolean embedded;
-
-/**
- * true if the font must use it's built in encoding. In that case the
- * <CODE>encoding</CODE> is only used to map a char to the position inside
- * the font, not to the expected char name.
- */
- protected boolean fontSpecific = true;
-
-/** cache for the fonts already used. */
- protected static HashMap fontCache = new HashMap();
-
-/** list of the 14 built in fonts. */
- protected static final HashMap BuiltinFonts14 = new HashMap();
-
- /** Forces the output of the width array. Only matters for the 14
- * built-in fonts.
- */
- protected boolean forceWidthsOutput = false;
-
- /** Converts <CODE>char</CODE> directly to <CODE>byte</CODE>
- * by casting.
- */
- protected boolean directTextToByte = false;
-
- /** Indicates if all the glyphs and widths for that particular
- * encoding should be included in the document.
- */
- protected boolean subset = true;
-
- protected boolean fastWinansi = false;
-
- static {
- BuiltinFonts14.put(COURIER, PdfName.COURIER);
- BuiltinFonts14.put(COURIER_BOLD, PdfName.COURIER_BOLD);
- BuiltinFonts14.put(COURIER_BOLDOBLIQUE, PdfName.COURIER_BOLDOBLIQUE);
- BuiltinFonts14.put(COURIER_OBLIQUE, PdfName.COURIER_OBLIQUE);
- BuiltinFonts14.put(HELVETICA, PdfName.HELVETICA);
- BuiltinFonts14.put(HELVETICA_BOLD, PdfName.HELVETICA_BOLD);
- BuiltinFonts14.put(HELVETICA_BOLDOBLIQUE, PdfName.HELVETICA_BOLDOBLIQUE);
- BuiltinFonts14.put(HELVETICA_OBLIQUE, PdfName.HELVETICA_OBLIQUE);
- BuiltinFonts14.put(SYMBOL, PdfName.SYMBOL);
- BuiltinFonts14.put(TIMES_ROMAN, PdfName.TIMES_ROMAN);
- BuiltinFonts14.put(TIMES_BOLD, PdfName.TIMES_BOLD);
- BuiltinFonts14.put(TIMES_BOLDITALIC, PdfName.TIMES_BOLDITALIC);
- BuiltinFonts14.put(TIMES_ITALIC, PdfName.TIMES_ITALIC);
- BuiltinFonts14.put(ZAPFDINGBATS, PdfName.ZAPFDINGBATS);
- }
-
- /** Generates the PDF stream with the Type1 and Truetype fonts returning
- * a PdfStream.
- */
- static class StreamFont extends PdfStream {
-
- /** Generates the PDF stream with the Type1 and Truetype fonts returning
- * a PdfStream.
- * @param contents the content of the stream
- * @param lengths an array of int that describes the several lengths of each part of the font
- * @throws DocumentException error in the stream compression
- */
- public StreamFont(byte contents[], int lengths[]) throws DocumentException {
- try {
- bytes = contents;
- put(PdfName.LENGTH, new PdfNumber(bytes.length));
- for (int k = 0; k < lengths.length; ++k) {
- put(new PdfName("Length" + (k + 1)), new PdfNumber(lengths[k]));
- }
- flateCompress();
- }
- catch (Exception e) {
- throw new DocumentException(e);
- }
- }
-
- /**
- * Generates the PDF stream for a font.
- * @param contents the content of a stream
- * @param subType the subtype of the font.
- * @throws DocumentException
- */
- public StreamFont(byte contents[], String subType) throws DocumentException {
- try {
- bytes = contents;
- put(PdfName.LENGTH, new PdfNumber(bytes.length));
- if (subType != null)
- put(PdfName.SUBTYPE, new PdfName(subType));
- flateCompress();
- }
- catch (Exception e) {
- throw new DocumentException(e);
- }
- }
- }
-
- /**
- *Creates new BaseFont
- */
- protected BaseFont() {
- }
-
- /** Creates a new font. This font can be one of the 14 built in types,
- * a Type1 font referred by an AFM file, a TrueType font (simple or collection) or a CJK font from the
- * Adobe Asian Font Pack. TrueType fonts and CJK fonts can have an optional style modifier
- * appended to the name. These modifiers are: Bold, Italic and BoldItalic. An
- * example would be "STSong-Light,Bold". Note that this modifiers do not work if
- * the font is embedded. Fonts in TrueType collections are addressed by index such as "msgothic.ttc,1".
- * This would get the second font (indexes start at 0), in this case "MS PGothic".
- * <P>
- * The fonts are cached and if they already exist they are extracted from the cache,
- * not parsed again.
- * <P>
- * This method calls:<br>
- * <PRE>
- * createFont(name, encoding, embedded, true, null, null);
- * </PRE>
- * @param name the name of the font or it's location on file
- * @param encoding the encoding to be applied to this font
- * @param embedded true if the font is to be embedded in the PDF
- * @return returns a new font. This font may come from the cache
- * @throws DocumentException the font is invalid
- * @throws IOException the font file could not be read
- */
- public static BaseFont createFont(String name, String encoding, boolean embedded) throws DocumentException, IOException {
- return createFont(name, encoding, embedded, true, null, null);
- }
-
- /** Creates a new font. This font can be one of the 14 built in types,
- * a Type1 font referred by an AFM file, a TrueType font (simple or collection) or a CJK font from the
- * Adobe Asian Font Pack. TrueType fonts and CJK fonts can have an optional style modifier
- * appended to the name. These modifiers are: Bold, Italic and BoldItalic. An
- * example would be "STSong-Light,Bold". Note that this modifiers do not work if
- * the font is embedded. Fonts in TrueType collections are addressed by index such as "msgothic.ttc,1".
- * This would get the second font (indexes start at 0), in this case "MS PGothic".
- * <P>
- * The fonts may or may not be cached depending on the flag <CODE>cached</CODE>.
- * If the <CODE>byte</CODE> arrays are present the font will be
- * read from them instead of the name. The name is still required to identify
- * the font type.
- * @param name the name of the font or it's location on file
- * @param encoding the encoding to be applied to this font
- * @param embedded true if the font is to be embedded in the PDF
- * @param cached true if the font comes from the cache or is added to
- * the cache if new, false if the font is always created new
- * @param ttfAfm the true type font or the afm in a byte array
- * @param pfb the pfb in a byte array
- * @return returns a new font. This font may come from the cache but only if cached
- * is true, otherwise it will always be created new
- * @throws DocumentException the font is invalid
- * @throws IOException the font file could not be read
- */
- public static BaseFont createFont(String name, String encoding, boolean embedded, boolean cached, byte ttfAfm[], byte pfb[]) throws DocumentException, IOException {
- String nameBase = getBaseName(name);
- encoding = normalizeEncoding(encoding);
- boolean isBuiltinFonts14 = BuiltinFonts14.containsKey(name);
- boolean isCJKFont = isBuiltinFonts14 ? false : CJKFont.isCJKFont(nameBase, encoding);
- if (isBuiltinFonts14 || isCJKFont)
- embedded = false;
- else if (encoding.equals(IDENTITY_H) || encoding.equals(IDENTITY_V))
- embedded = true;
- BaseFont fontFound = null;
- BaseFont fontBuilt = null;
- String key = name + "\n" + encoding + "\n" + embedded;
- if (cached) {
- synchronized (fontCache) {
- fontFound = (BaseFont)fontCache.get(key);
- }
- if (fontFound != null)
- return fontFound;
- }
- if (isBuiltinFonts14 || name.toLowerCase().endsWith(".afm") || name.toLowerCase().endsWith(".pfm")) {
- fontBuilt = new Type1Font(name, encoding, embedded, ttfAfm, pfb);
- fontBuilt.fastWinansi = encoding.equals(CP1252);
- }
- else if (nameBase.toLowerCase().endsWith(".ttf") || nameBase.toLowerCase().endsWith(".otf") || nameBase.toLowerCase().indexOf(".ttc,") > 0) {
- if (encoding.equals(IDENTITY_H) || encoding.equals(IDENTITY_V))
- fontBuilt = new TrueTypeFontUnicode(name, encoding, embedded, ttfAfm);
- else {
- fontBuilt = new TrueTypeFont(name, encoding, embedded, ttfAfm);
- fontBuilt.fastWinansi = encoding.equals(CP1252);
- }
- }
- else if (isCJKFont)
- fontBuilt = new CJKFont(name, encoding, embedded);
- else
- throw new DocumentException("Font '" + name + "' with '" + encoding + "' is not recognized.");
- if (cached) {
- synchronized (fontCache) {
- fontFound = (BaseFont)fontCache.get(key);
- if (fontFound != null)
- return fontFound;
- fontCache.put(key, fontBuilt);
- }
- }
- return fontBuilt;
- }
-
- /**
- * Creates a font based on an existing document font. The created font font may not
- * behave as expected, depending on the encoding or subset.
- * @param fontRef the reference to the document font
- * @return the font
- */
- public static BaseFont createFont(PRIndirectReference fontRef) {
- return new DocumentFont(fontRef);
- }
-
- /**
- * Gets the name without the modifiers Bold, Italic or BoldItalic.
- * @param name the full name of the font
- * @return the name without the modifiers Bold, Italic or BoldItalic
- */
- protected static String getBaseName(String name) {
- if (name.endsWith(",Bold"))
- return name.substring(0, name.length() - 5);
- else if (name.endsWith(",Italic"))
- return name.substring(0, name.length() - 7);
- else if (name.endsWith(",BoldItalic"))
- return name.substring(0, name.length() - 11);
- else
- return name;
- }
-
- /**
- * Normalize the encoding names. "winansi" is changed to "Cp1252" and
- * "macroman" is changed to "MacRoman".
- * @param enc the encoding to be normalized
- * @return the normalized encoding
- */
- protected static String normalizeEncoding(String enc) {
- if (enc.equals("winansi") || enc.equals(""))
- return CP1252;
- else if (enc.equals("macroman"))
- return MACROMAN;
- else
- return enc;
- }
-
- /**
- * Creates the <CODE>widths</CODE> and the <CODE>differences</CODE> arrays
- */
- protected void createEncoding() {
- if (fontSpecific) {
- for (int k = 0; k < 256; ++k) {
- widths[k] = getRawWidth(k, null);
- charBBoxes[k] = getRawCharBBox(k, null);
- }
- }
- else {
- String s;
- String name;
- char c;
- byte b[] = new byte[1];
- for (int k = 0; k < 256; ++k) {
- b[0] = (byte)k;
- s = PdfEncodings.convertToString(b, encoding);
- if (s.length() > 0) {
- c = s.charAt(0);
- }
- else {
- c = '?';
- }
- name = GlyphList.unicodeToName((int)c);
- if (name == null)
- name = notdef;
- differences[k] = name;
- unicodeDifferences[k] = c;
- widths[k] = getRawWidth((int)c, name);
- charBBoxes[k] = getRawCharBBox((int)c, name);
- }
- }
- }
-
- /**
- * Gets the width from the font according to the Unicode char <CODE>c</CODE>
- * or the <CODE>name</CODE>. If the <CODE>name</CODE> is null it's a symbolic font.
- * @param c the unicode char
- * @param name the glyph name
- * @return the width of the char
- */
- abstract int getRawWidth(int c, String name);
-
- /**
- * Gets the kerning between two Unicode chars.
- * @param char1 the first char
- * @param char2 the second char
- * @return the kerning to be applied in normalized 1000 units
- */
- public abstract int getKerning(char char1, char char2);
-
- /**
- * Sets the kerning between two Unicode chars.
- * @param char1 the first char
- * @param char2 the second char
- * @param kern the kerning to apply in normalized 1000 units
- * @return <code>true</code> if the kerning was applied, <code>false</code> otherwise
- */
- public abstract boolean setKerning(char char1, char char2, int kern);
-
- /**
- * Gets the width of a <CODE>char</CODE> in normalized 1000 units.
- * @param char1 the unicode <CODE>char</CODE> to get the width of
- * @return the width in normalized 1000 units
- */
- public int getWidth(char char1) {
- if (fastWinansi) {
- if (char1 < 128 || (char1 >= 160 && char1 <= 255))
- return widths[char1];
- return widths[PdfEncodings.winansi.get(char1)];
- }
- return getWidth(new String(new char[]{char1}));
- }
-
- /**
- * Gets the width of a <CODE>String</CODE> in normalized 1000 units.
- * @param text the <CODE>String</CODE> to get the witdth of
- * @return the width in normalized 1000 units
- */
- public int getWidth(String text) {
- int total = 0;
- if (fastWinansi) {
- int len = text.length();
- for (int k = 0; k < len; ++k) {
- char char1 = text.charAt(k);
- if (char1 < 128 || (char1 >= 160 && char1 <= 255))
- total += widths[char1];
- else
- total += widths[PdfEncodings.winansi.get(char1)];
- }
- return total;
- }
- else {
- byte mbytes[] = convertToBytes(text);
- for (int k = 0; k < mbytes.length; ++k)
- total += widths[0xff & mbytes[k]];
- }
- return total;
- }
-
-/**
- * Gets the descent of a <CODE>String</CODE> in normalized 1000 units. The descent will always be
- * less than or equal to zero even if all the characters have an higher descent.
- * @param text the <CODE>String</CODE> to get the descent of
- * @return the dexcent in normalized 1000 units
- */
- public int getDescent(String text) {
- int min = 0;
- char chars[] = text.toCharArray();
- for (int k = 0; k < chars.length; ++k) {
- int bbox[] = getCharBBox(chars[k]);
- if (bbox != null && bbox[1] < min)
- min = bbox[1];
- }
- return min;
- }
-
-/**
- * Gets the ascent of a <CODE>String</CODE> in normalized 1000 units. The ascent will always be
- * greater than or equal to zero even if all the characters have a lower ascent.
- * @param text the <CODE>String</CODE> to get the ascent of
- * @return the ascent in normalized 1000 units
- */
- public int getAscent(String text) {
- int max = 0;
- char chars[] = text.toCharArray();
- for (int k = 0; k < chars.length; ++k) {
- int bbox[] = getCharBBox(chars[k]);
- if (bbox != null && bbox[3] > max)
- max = bbox[3];
- }
- return max;
- }
-
-/**
- * Gets the descent of a <CODE>String</CODE> in points. The descent will always be
- * less than or equal to zero even if all the characters have an higher descent.
- * @param text the <CODE>String</CODE> to get the descent of
- * @param fontSize the size of the font
- * @return the dexcent in points
- */
- public float getDescentPoint(String text, float fontSize)
- {
- return (float)getDescent(text) * 0.001f * fontSize;
- }
-
-/**
- * Gets the ascent of a <CODE>String</CODE> in points. The ascent will always be
- * greater than or equal to zero even if all the characters have a lower ascent.
- * @param text the <CODE>String</CODE> to get the ascent of
- * @param fontSize the size of the font
- * @return the ascent in points
- */
- public float getAscentPoint(String text, float fontSize)
- {
- return (float)getAscent(text) * 0.001f * fontSize;
- }
-// ia>
-
- /**
- * Gets the width of a <CODE>String</CODE> in points taking kerning
- * into account.
- * @param text the <CODE>String</CODE> to get the witdth of
- * @param fontSize the font size
- * @return the width in points
- */
- public float getWidthPointKerned(String text, float fontSize) {
- float size = (float)getWidth(text) * 0.001f * fontSize;
- if (!hasKernPairs())
- return size;
- int len = text.length() - 1;
- int kern = 0;
- char c[] = text.toCharArray();
- for (int k = 0; k < len; ++k) {
- kern += getKerning(c[k], c[k + 1]);
- }
- return size + kern * 0.001f * fontSize;
- }
-
- /**
- * Gets the width of a <CODE>String</CODE> in points.
- * @param text the <CODE>String</CODE> to get the witdth of
- * @param fontSize the font size
- * @return the width in points
- */
- public float getWidthPoint(String text, float fontSize) {
- return (float)getWidth(text) * 0.001f * fontSize;
- }
-
- /**
- * Gets the width of a <CODE>char</CODE> in points.
- * @param char1 the <CODE>char</CODE> to get the witdth of
- * @param fontSize the font size
- * @return the width in points
- */
- public float getWidthPoint(char char1, float fontSize) {
- return getWidth(char1) * 0.001f * fontSize;
- }
-
- /**
- * Converts a <CODE>String</CODE> to a </CODE>byte</CODE> array according
- * to the font's encoding.
- * @param text the <CODE>String</CODE> to be converted
- * @return an array of <CODE>byte</CODE> representing the conversion according to the font's encoding
- */
- byte[] convertToBytes(String text) {
- if (directTextToByte)
- return PdfEncodings.convertToBytes(text, null);
- return PdfEncodings.convertToBytes(text, encoding);
- }
-
- /** Outputs to the writer the font dictionaries and streams.
- * @param writer the writer for this document
- * @param ref the font indirect reference
- * @param params several parameters that depend on the font type
- * @throws IOException on error
- * @throws DocumentException error in generating the object
- */
- abstract void writeFont(PdfWriter writer, PdfIndirectReference ref, Object params[]) throws DocumentException, IOException;
-
- /** Gets the encoding used to convert <CODE>String</CODE> into <CODE>byte[]</CODE>.
- * @return the encoding name
- */
- public String getEncoding() {
- return encoding;
- }
-
- /** Gets the font parameter identified by <CODE>key</CODE>. Valid values
- * for <CODE>key</CODE> are <CODE>ASCENT</CODE>, <CODE>AWT_ASCENT</CODE>, <CODE>CAPHEIGHT</CODE>,
- * <CODE>DESCENT</CODE>, <CODE>AWT_DESCENT</CODE>,
- * <CODE>ITALICANGLE</CODE>, <CODE>BBOXLLX</CODE>, <CODE>BBOXLLY</CODE>, <CODE>BBOXURX</CODE>
- * and <CODE>BBOXURY</CODE>.
- * @param key the parameter to be extracted
- * @param fontSize the font size in points
- * @return the parameter in points
- */
- public abstract float getFontDescriptor(int key, float fontSize);
-
- /** Gets the font type. The font types can be: FONT_TYPE_T1,
- * FONT_TYPE_TT, FONT_TYPE_CJK and FONT_TYPE_TTUNI.
- * @return the font type
- */
- public int getFontType() {
- return fontType;
- }
-
- /** Gets the embedded flag.
- * @return <CODE>true</CODE> if the font is embedded.
- */
- public boolean isEmbedded() {
- return embedded;
- }
-
- /** Gets the symbolic flag of the font.
- * @return <CODE>true</CODE> if the font is symbolic
- */
- public boolean isFontSpecific() {
- return fontSpecific;
- }
-
- /** Creates a unique subset prefix to be added to the font name when the font is embedded and subset.
- * @return the subset prefix
- */
- public static String createSubsetPrefix() {
- String s = "";
- for (int k = 0; k < 6; ++k)
- s += (char)(Math.random() * 26 + 'A');
- return s + "+";
- }
-
- /** Gets the Unicode character corresponding to the byte output to the pdf stream.
- * @param index the byte index
- * @return the Unicode character
- */
- char getUnicodeDifferences(int index) {
- return unicodeDifferences[index];
- }
-
- /** Gets the postscript font name.
- * @return the postscript font name
- */
- public abstract String getPostscriptFontName();
-
- /**
- * Sets the font name that will appear in the pdf font dictionary.
- * Use with care as it can easily make a font unreadable if not embedded.
- * @param name the new font name
- */
- public abstract void setPostscriptFontName(String name);
-
- /** Gets the full name of the font. If it is a True Type font
- * each array element will have {Platform ID, Platform Encoding ID,
- * Language ID, font name}. The interpretation of this values can be
- * found in the Open Type specification, chapter 2, in the 'name' table.<br>
- * For the other fonts the array has a single element with {"", "", "",
- * font name}.
- * @return the full name of the font
- */
- public abstract String[][] getFullFontName();
-
- /** Gets the full name of the font. If it is a True Type font
- * each array element will have {Platform ID, Platform Encoding ID,
- * Language ID, font name}. The interpretation of this values can be
- * found in the Open Type specification, chapter 2, in the 'name' table.<br>
- * For the other fonts the array has a single element with {"", "", "",
- * font name}.
- * @param name the name of the font
- * @param encoding the encoding of the font
- * @param ttfAfm the true type font or the afm in a byte array
- * @throws DocumentException on error
- * @throws IOException on error
- * @return the full name of the font
- */
- public static String[][] getFullFontName(String name, String encoding, byte ttfAfm[]) throws DocumentException, IOException {
- String nameBase = getBaseName(name);
- BaseFont fontBuilt = null;
- if (nameBase.toLowerCase().endsWith(".ttf") || nameBase.toLowerCase().endsWith(".otf") || nameBase.toLowerCase().indexOf(".ttc,") > 0)
- fontBuilt = new TrueTypeFont(name, CP1252, false, ttfAfm, true);
- else
- fontBuilt = createFont(name, encoding, false, false, ttfAfm, null);
- return fontBuilt.getFullFontName();
- }
-
- /** Gets all the names from the font. Only the required tables are read.
- * @param name the name of the font
- * @param encoding the encoding of the font
- * @param ttfAfm the true type font or the afm in a byte array
- * @throws DocumentException on error
- * @throws IOException on error
- * @return an array of Object[] built with {getPostscriptFontName(), getFamilyFontName(), getFullFontName()}
- */
- public static Object[] getAllFontNames(String name, String encoding, byte ttfAfm[]) throws DocumentException, IOException {
- String nameBase = getBaseName(name);
- BaseFont fontBuilt = null;
- if (nameBase.toLowerCase().endsWith(".ttf") || nameBase.toLowerCase().endsWith(".otf") || nameBase.toLowerCase().indexOf(".ttc,") > 0)
- fontBuilt = new TrueTypeFont(name, CP1252, false, ttfAfm, true);
- else
- fontBuilt = createFont(name, encoding, false, false, ttfAfm, null);
- return new Object[]{fontBuilt.getPostscriptFontName(), fontBuilt.getFamilyFontName(), fontBuilt.getFullFontName()};
- }
-
- /** Gets the family name of the font. If it is a True Type font
- * each array element will have {Platform ID, Platform Encoding ID,
- * Language ID, font name}. The interpretation of this values can be
- * found in the Open Type specification, chapter 2, in the 'name' table.<br>
- * For the other fonts the array has a single element with {"", "", "",
- * font name}.
- * @return the family name of the font
- */
- public abstract String[][] getFamilyFontName();
-
- /** Gets the code pages supported by the font. This has only meaning
- * with True Type fonts.
- * @return the code pages supported by the font
- */
- public String[] getCodePagesSupported() {
- return new String[0];
- }
-
- /** Enumerates the postscript font names present inside a
- * True Type Collection.
- * @param ttcFile the file name of the font
- * @throws DocumentException on error
- * @throws IOException on error
- * @return the postscript font names
- */
- public static String[] enumerateTTCNames(String ttcFile) throws DocumentException, IOException {
- return new EnumerateTTC(ttcFile).getNames();
- }
-
- /** Enumerates the postscript font names present inside a
- * True Type Collection.
- * @param ttcArray the font as a <CODE>byte</CODE> array
- * @throws DocumentException on error
- * @throws IOException on error
- * @return the postscript font names
- */
- public static String[] enumerateTTCNames(byte ttcArray[]) throws DocumentException, IOException {
- return new EnumerateTTC(ttcArray).getNames();
- }
-
- /** Gets the font width array.
- * @return the font width array
- */
- public int[] getWidths() {
- return widths;
- }
-
- /** Gets the array with the names of the characters.
- * @return the array with the names of the characters
- */
- public String[] getDifferences() {
- return differences;
- }
-
- /** Gets the array with the unicode characters.
- * @return the array with the unicode characters
- */
- public char[] getUnicodeDifferences() {
- return unicodeDifferences;
- }
-
- /** Gets the state of the property.
- * @return value of property forceWidthsOutput
- */
- public boolean isForceWidthsOutput() {
- return forceWidthsOutput;
- }
-
- /** Set to <CODE>true</CODE> to force the generation of the
- * widths array.
- * @param forceWidthsOutput <CODE>true</CODE> to force the generation of the
- * widths array
- */
- public void setForceWidthsOutput(boolean forceWidthsOutput) {
- this.forceWidthsOutput = forceWidthsOutput;
- }
-
- /** Gets the direct conversion of <CODE>char</CODE> to <CODE>byte</CODE>.
- * @return value of property directTextToByte.
- * @see #setDirectTextToByte(boolean directTextToByte)
- */
- public boolean isDirectTextToByte() {
- return directTextToByte;
- }
-
- /** Sets the conversion of <CODE>char</CODE> directly to <CODE>byte</CODE>
- * by casting. This is a low level feature to put the bytes directly in
- * the content stream without passing through String.getBytes().
- * @param directTextToByte New value of property directTextToByte.
- */
- public void setDirectTextToByte(boolean directTextToByte) {
- this.directTextToByte = directTextToByte;
- }
-
- /** Indicates if all the glyphs and widths for that particular
- * encoding should be included in the document.
- * @return <CODE>false</CODE> to include all the glyphs and widths.
- */
- public boolean isSubset() {
- return subset;
- }
-
- /** Indicates if all the glyphs and widths for that particular
- * encoding should be included in the document. When set to <CODE>true</CODE>
- * only the glyphs used will be included in the font. When set to <CODE>false</CODE>
- * and {@link #addSubsetRange(int[])} was not called the full font will be included
- * otherwise just the characters ranges will be included.
- * @param subset new value of property subset
- */
- public void setSubset(boolean subset) {
- this.subset = subset;
- }
-
- /** Gets the font resources.
- * @param key the full name of the resource
- * @return the <CODE>InputStream</CODE> to get the resource or
- * <CODE>null</CODE> if not found
- */
- public static InputStream getResourceStream(String key) {
- return getResourceStream(key, null);
- }
-
- /** Gets the font resources.
- * @param key the full name of the resource
- * @param loader the ClassLoader to load the resource or null to try the ones available
- * @return the <CODE>InputStream</CODE> to get the resource or
- * <CODE>null</CODE> if not found
- */
- public static InputStream getResourceStream(String key, ClassLoader loader) {
- if (key.startsWith("/"))
- key = key.substring(1);
- InputStream is = null;
- if (loader != null) {
- is = loader.getResourceAsStream(key);
- if (is != null)
- return is;
- }
- // Try to use Context Class Loader to load the properties file.
- try {
- java.lang.reflect.Method getCCL =
- Thread.class.getMethod("getContextClassLoader", new Class[0]);
- if (getCCL != null) {
- ClassLoader contextClassLoader =
- (ClassLoader)getCCL.invoke(Thread.currentThread(),
- new Object[0]);
- if (contextClassLoader != null)
- is = contextClassLoader.getResourceAsStream(key);
- }
- } catch (Throwable e) {}
-
- if (is == null) {
- is = BaseFont.class.getResourceAsStream("/" + key);
- }
- if (is == null) {
- is = ClassLoader.getSystemResourceAsStream(key);
- }
- return is;
- }
-
- /** Gets the Unicode equivalent to a CID.
- * The (inexistent) CID <FF00> is translated as '\n'.
- * It has only meaning with CJK fonts with Identity encoding.
- * @param c the CID code
- * @return the Unicode equivalent
- */
- public char getUnicodeEquivalent(char c) {
- return c;
- }
-
- /** Gets the CID code given an Unicode.
- * It has only meaning with CJK fonts.
- * @param c the Unicode
- * @return the CID equivalent
- */
- public char getCidCode(char c) {
- return c;
- }
-
- /** Checks if the font has any kerning pairs.
- * @return <CODE>true</CODE> if the font has any kerning pairs
- */
- public abstract boolean hasKernPairs();
-
- /**
- * Checks if a character exists in this font.
- * @param c the character to check
- * @return <CODE>true</CODE> if the character has a glyph,
- * <CODE>false</CODE> otherwise
- */
- public boolean charExists(char c) {
- byte b[] = convertToBytes(new String(new char[]{c}));
- return b.length > 0;
- }
-
- /**
- * Sets the character advance.
- * @param c the character
- * @param advance the character advance normalized to 1000 units
- * @return <CODE>true</CODE> if the advance was set,
- * <CODE>false</CODE> otherwise
- */
- public boolean setCharAdvance(char c, int advance) {
- byte b[] = convertToBytes(new String(new char[]{c}));
- if (b.length == 0)
- return false;
- widths[0xff & b[0]] = advance;
- return true;
- }
-
- private static void addFont(PRIndirectReference fontRef, IntHashtable hits, ArrayList fonts) {
- PdfObject obj = PdfReader.getPdfObject(fontRef);
- if (!obj.isDictionary())
- return;
- PdfDictionary font = (PdfDictionary)obj;
- PdfName subtype = (PdfName)PdfReader.getPdfObject(font.get(PdfName.SUBTYPE));
- if (!PdfName.TYPE1.equals(subtype) && !PdfName.TRUETYPE.equals(subtype))
- return;
- PdfName name = (PdfName)PdfReader.getPdfObject(font.get(PdfName.BASEFONT));
- fonts.add(new Object[]{PdfName.decodeName(name.toString()), fontRef});
- hits.put(fontRef.getNumber(), 1);
- }
-
- private static void recourseFonts(PdfDictionary page, IntHashtable hits, ArrayList fonts, int level) {
- ++level;
- if (level > 50) // in case we have an endless loop
- return;
- PdfDictionary resources = (PdfDictionary)PdfReader.getPdfObject(page.get(PdfName.RESOURCES));
- if (resources == null)
- return;
- PdfDictionary font = (PdfDictionary)PdfReader.getPdfObject(resources.get(PdfName.FONT));
- if (font != null) {
- for (Iterator it = font.getKeys().iterator(); it.hasNext();) {
- PdfObject ft = font.get((PdfName)it.next());
- if (ft == null || !ft.isIndirect())
- continue;
- int hit = ((PRIndirectReference)ft).getNumber();
- if (hits.containsKey(hit))
- continue;
- addFont((PRIndirectReference)ft, hits, fonts);
- }
- }
- PdfDictionary xobj = (PdfDictionary)PdfReader.getPdfObject(resources.get(PdfName.XOBJECT));
- if (xobj != null) {
- for (Iterator it = xobj.getKeys().iterator(); it.hasNext();) {
- recourseFonts((PdfDictionary)PdfReader.getPdfObject(xobj.get((PdfName)it.next())), hits, fonts, level);
- }
- }
- }
-
- /**
- * Gets a list of all document fonts. Each element of the <CODE>ArrayList</CODE>
- * contains a <CODE>Object[]{String,PRIndirectReference}</CODE> with the font name
- * and the indirect reference to it.
- * @param reader the document where the fonts are to be listed from
- * @return the list of fonts and references
- */
- public static ArrayList getDocumentFonts(PdfReader reader) {
- IntHashtable hits = new IntHashtable();
- ArrayList fonts = new ArrayList();
- int npages = reader.getNumberOfPages();
- for (int k = 1; k <= npages; ++k)
- recourseFonts(reader.getPageN(k), hits, fonts, 1);
- return fonts;
- }
-
- /**
- * Gets a list of the document fonts in a particular page. Each element of the <CODE>ArrayList</CODE>
- * contains a <CODE>Object[]{String,PRIndirectReference}</CODE> with the font name
- * and the indirect reference to it.
- * @param reader the document where the fonts are to be listed from
- * @param page the page to list the fonts from
- * @return the list of fonts and references
- */
- public static ArrayList getDocumentFonts(PdfReader reader, int page) {
- IntHashtable hits = new IntHashtable();
- ArrayList fonts = new ArrayList();
- recourseFonts(reader.getPageN(page), hits, fonts, 1);
- return fonts;
- }
-
- /**
- * Gets the smallest box enclosing the character contours. It will return
- * <CODE>null</CODE> if the font has not the information or the character has no
- * contours, as in the case of the space, for example. Characters with no contours may
- * also return [0,0,0,0].
- * @param c the character to get the contour bounding box from
- * @return an array of four floats with the bounding box in the format [llx,lly,urx,ury] or
- * <code>null</code>
- */
- public int[] getCharBBox(char c) {
- byte b[] = convertToBytes(new String(new char[]{c}));
- if (b.length == 0)
- return null;
- else
- return charBBoxes[b[0] & 0xff];
- }
-
- protected abstract int[] getRawCharBBox(int c, String name);
-
- /**
- * iText expects Arabic Diactrics (tashkeel) to have zero advance but some fonts,
- * most notably those that come with Windows, like times.ttf, have non-zero
- * advance for those characters. This method makes those character to have zero
- * width advance and work correctly in the iText Arabic shaping and reordering
- * context.
- */
- public void correctArabicAdvance() {
- for (char c = '\u064b'; c <= '\u0658'; ++c)
- setCharAdvance(c, 0);
- setCharAdvance('\u0670', 0);
- for (char c = '\u06d6'; c <= '\u06dc'; ++c)
- setCharAdvance(c, 0);
- for (char c = '\u06df'; c <= '\u06e4'; ++c)
- setCharAdvance(c, 0);
- for (char c = '\u06e7'; c <= '\u06e8'; ++c)
- setCharAdvance(c, 0);
- for (char c = '\u06ea'; c <= '\u06ed'; ++c)
- setCharAdvance(c, 0);
- }
-
- /**
- * Adds a character range when subsetting. The range is an <CODE>int</CODE> array
- * where the first element is the start range inclusive and the second element is the
- * end range inclusive. Several ranges are allowed in the same array.
- * @param range the character range
- */
- public void addSubsetRange(int[] range) {
- if (subsetRanges == null)
- subsetRanges = new ArrayList();
- subsetRanges.add(range);
- }
-}
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