org.jpedal.fonts.tt.Post Maven / Gradle / Ivy
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/*
* ===========================================
* Java Pdf Extraction Decoding Access Library
* ===========================================
*
* Project Info: http://www.idrsolutions.com
* Help section for developers at http://www.idrsolutions.com/java-pdf-library-support/
*
* (C) Copyright 1997-2013, IDRsolutions and Contributors.
*
* This file is part of JPedal
*
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* ---------------
* Post.java
* ---------------
*/
package org.jpedal.fonts.tt;
import java.util.HashMap;
import java.util.Map;
import org.jpedal.utils.LogWriter;
public class Post extends Table {
private static final long serialVersionUID = 8714548996906152254L;
/** map glyphs onto ID values in font */
private Map translateToID = new HashMap();
final private String[] macEncoding = { ".notdef", ".null", "nonmarkingreturn", "space", "exclam", "quotedbl", "numbersign", "dollar", "percent",
"ampersand", "quotesingle", "parenleft", "parenright", "asterisk", "plus", "comma", "hyphen", "period", "slash", "zero", "one", "two",
"three", "four", "five", "six", "seven", "eight", "nine", "colon", "semicolon", "less", "equal", "greater", "question", "at", "A", "B",
"C", "D", "E", "F", "G", "H", "I", "J", "K", "L", "M", "N", "O", "P", "Q", "R", "S", "T", "U", "V", "W", "X", "Y", "Z", "bracketleft",
"backslash", "bracketright", "asciicircum", "underscore", "grave", "a", "b", "c", "d", "e", "f", "g", "h", "i", "j", "k", "l", "m", "n",
"o", "p", "q", "r", "s", "t", "u", "v", "w", "x", "y", "z", "braceleft", "bar", "braceright", "asciitilde", "Adieresis", "Aring",
"Ccedilla", "Eacute", "Ntilde", "Odieresis", "Udieresis", "aacute", "agrave", "acircumflex", "adieresis", "atilde", "aring", "ccedilla",
"eacute", "egrave", "ecircumflex", "edieresis", "iacute", "igrave", "icircumflex", "idieresis", "ntilde", "oacute", "ograve",
"ocircumflex", "odieresis", "otilde", "uacute", "ugrave", "ucircumflex", "udieresis", "dagger", "degree", "cent", "sterling", "section",
"bullet", "paragraph", "germandbls", "registered", "copyright", "trademark", "acute", "dieresis", "notequal", "AE", "Oslash", "infinity",
"plusminus", "lessequal", "greaterequal", "yen", "mu", "partialdiff", "summation", "product", "pi", "integral", "ordfeminine",
"ordmasculine", "Omega", "ae", "oslash", "questiondown", "exclamdown", "logicalnot", "radical", "florin", "approxequal", "Delta",
"guillemotleft", "guillemotright", "ellipsis", "nonbreakingspace", "Agrave", "Atilde", "Otilde", "OE", "oe", "endash", "emdash",
"quotedblleft", "quotedblright", "quoteleft", "quoteright", "divide", "lozenge", "ydieresis", "Ydieresis", "fraction", "currency",
"guilsinglleft", "guilsinglright", "fi", "fl", "daggerdbl", "periodcentered", "quotesinglbase", "quotedblbase", "perthousand",
"Acircumflex", "Ecircumflex", "Aacute", "Edieresis", "Egrave", "Iacute", "Icircumflex", "Idieresis", "Igrave", "Oacute", "Ocircumflex",
"apple", "Ograve", "Uacute", "Ucircumflex", "Ugrave", "dotlessi", "circumflex", "tilde", "macron", "breve", "dotaccent", "ring",
"cedilla", "hungarumlaut", "ogonek", "caron", "Lslash", "lslash", "Scaron", "scaron", "Zcaron", "zcaron", "brokenbar", "Eth", "eth",
"Yacute", "yacute", "Thorn", "thorn", "minus", "multiply", "onesuperior", "twosuperior", "threesuperior", "onehalf", "onequarter",
"threequarters", "franc", "Gbreve", "gbreve", "Idotaccent", "Scedilla", "scedilla", "Cacute", "cacute", "Ccaron", "ccaron", "dcroat" };
public Post(FontFile2 currentFontFile) {
// move to start and check exists
int startPointer = currentFontFile.selectTable(FontFile2.POST);
// System.out.println(startPointer);
// read 'head' table
if (startPointer == 0) {
if (LogWriter.isOutput()) LogWriter.writeLog("No Post table found");
}
else {
// read format (actually 1,2,2.5 but multiplied so switch works
int id = (int) (10 * currentFontFile.getFixed());
// System.out.println("id="+id);
// for(int i=0;i<)
// read rest of table which we ignore
currentFontFile.getFixed();// italicAngle Italic angle in degrees
currentFontFile.getFWord();// FWord underlinePosition Underline position
currentFontFile.getFWord();// FWord underlineThickness Underline thickness
currentFontFile.getNextUint16();// uint16 isFixedPitch Font is monospaced; set to 1 if the font is monospaced and 0 otherwise
currentFontFile.getNextUint16();// uint16 reserved Reserved, set to 0
currentFontFile.getNextUint32();// uint32 minMemType42 Minimum memory usage when a TrueType font is downloaded as a Type 42 font
currentFontFile.getNextUint32();// uint32 maxMemType42 Maximum memory usage when a TrueType font is downloaded as a Type 42 font
currentFontFile.getNextUint32();// uint32 minMemType1 Minimum memory usage when a TrueType font is downloaded as a Type 1 font
currentFontFile.getNextUint32();// uint32 maxMemType1 Maximum memory usage when a TrueType font is downloaded as a Type 1 font
/**
* create lookup table for mac format
*/
int numberOfGlyphs;
// standard mac os table
if (id != 30) {
for (int i = 0; i < 258; i++)
this.translateToID.put(this.macEncoding[i], i);
}
switch (id) {
case 20:
numberOfGlyphs = currentFontFile.getNextUint16();
int[] glyphNameIndex = new int[numberOfGlyphs];
int numberOfNewGlyphs = 0;
/** read glyphs and work out how many strings */
for (int i = 0; i < numberOfGlyphs; i++) {
glyphNameIndex[i] = currentFontFile.getNextUint16();
if (glyphNameIndex[i] > 257 && glyphNameIndex[i] < 32768) numberOfNewGlyphs++;
}
/** now read the strings */
String[] names = new String[numberOfNewGlyphs];
for (int i = 0; i < numberOfNewGlyphs; i++) {
names[i] = currentFontFile.getString();
// System.out.println("names["+i+"]="+names[i]);
}
/** now add in non-standard strings */
for (int i = 0; i < numberOfGlyphs; i++) {
// System.out.println("i="+i+"/"+numberOfGlyphs);
if (glyphNameIndex[i] > 257 && glyphNameIndex[i] < 32768) {
this.translateToID.put(names[glyphNameIndex[i] - 258], i);
// System.out.println(i+"="+names[glyphNameIndex[i]-258]);
}
}
break;
case 25:
numberOfGlyphs = currentFontFile.getNextUint16();
int[] glyphOffset = new int[numberOfGlyphs];
/** read glyphs and work out how many strings */
for (int i = 0; i < numberOfGlyphs; i++) {
glyphOffset[i] = currentFontFile.getNextint8();
this.translateToID.put(this.macEncoding[glyphOffset[i] + i], glyphOffset[i]);
}
break;
}
}
}
public Post() {
}
/**
* lookup glyph in post table (return -1 if no match
*/
public int convertGlyphToCharacterCode(String glyph) {
Integer newID = (Integer) this.translateToID.get(glyph);
if (newID == null) return 0;
else return newID;
}
private static Integer getKey(byte[] raw) {
int keyStart = 0;
int keyLength = raw.length;
// convert token to unique key
int id = 0, x = 0, next;
for (int i2 = keyLength - 1; i2 > -1; i2--) {
next = raw[keyStart + i2];
next = next - 48;
id = id + ((next) << x);
x = x + 8;
}
return id;
}
}