//
// GfxFont.cc
//
-// Copyright 1996 Derek B. Noonburg
+// Copyright 1996-2002 Glyph & Cog, LLC
//
//========================================================================
#pragma implementation
#endif
-#include <stdlib.h>
-#include <stddef.h>
+#include <aconf.h>
#include <stdio.h>
+#include <stdlib.h>
#include <string.h>
#include <ctype.h>
-#include "GString.h"
#include "gmem.h"
-#include "gfile.h"
-#include "config.h"
+#include "Error.h"
#include "Object.h"
-#include "Array.h"
#include "Dict.h"
-#include "Error.h"
-#include "Params.h"
+#include "GlobalParams.h"
+#include "CMap.h"
+#include "CharCodeToUnicode.h"
+#include "FontEncodingTables.h"
+#include "BuiltinFontTables.h"
#include "FontFile.h"
#include "GfxFont.h"
-#include "FontInfo.h"
-#if JAPANESE_SUPPORT
-#include "Japan12CMapInfo.h"
-#endif
-#if CHINESE_GB_SUPPORT
-#include "GB12CMapInfo.h"
-#endif
-#if CHINESE_CNS_SUPPORT
-#include "CNS13CMapInfo.h"
-#endif
-
//------------------------------------------------------------------------
-static int CDECL cmpWidthExcep(const void *w1, const void *w2);
-static int CDECL cmpWidthExcepV(const void *w1, const void *w2);
-
-//------------------------------------------------------------------------
+struct StdFontMapEntry {
+ char *altName;
+ char *properName;
+};
-static Gushort *defCharWidths[12] = {
- courierWidths,
- courierObliqueWidths,
- courierBoldWidths,
- courierBoldObliqueWidths,
- helveticaWidths,
- helveticaObliqueWidths,
- helveticaBoldWidths,
- helveticaBoldObliqueWidths,
- timesRomanWidths,
- timesItalicWidths,
- timesBoldWidths,
- timesBoldItalicWidths
+static StdFontMapEntry stdFontMap[] = {
+ { "Arial", "Helvetica" },
+ { "Arial,Bold", "Helvetica-Bold" },
+ { "Arial,BoldItalic", "Helvetica-BoldOblique" },
+ { "Arial,Italic", "Helvetica-Oblique" },
+ { "Arial-Bold", "Helvetica-Bold" },
+ { "Arial-BoldItalic", "Helvetica-BoldOblique" },
+ { "Arial-BoldItalicMT", "Helvetica-BoldOblique" },
+ { "Arial-BoldMT", "Helvetica-Bold" },
+ { "Arial-Italic", "Helvetica-Oblique" },
+ { "Arial-ItalicMT", "Helvetica-Oblique" },
+ { "ArialMT", "Helvetica" },
+ { "Courier,Bold", "Courier-Bold" },
+ { "Courier,Italic", "Courier-Oblique" },
+ { "Courier,BoldItalic", "Courier-BoldOblique" },
+ { "CourierNew", "Courier" },
+ { "CourierNew,Bold", "Courier-Bold" },
+ { "CourierNew,BoldItalic", "Courier-BoldOblique" },
+ { "CourierNew,Italic", "Courier-Oblique" },
+ { "CourierNew-Bold", "Courier-Bold" },
+ { "CourierNew-BoldItalic", "Courier-BoldOblique" },
+ { "CourierNew-Italic", "Courier-Oblique" },
+ { "CourierNewPS-BoldItalicMT", "Courier-BoldOblique" },
+ { "CourierNewPS-BoldMT", "Courier-Bold" },
+ { "CourierNewPS-ItalicMT", "Courier-Oblique" },
+ { "CourierNewPSMT", "Courier" },
+ { "Helvetica,Bold", "Helvetica-Bold" },
+ { "Helvetica,BoldItalic", "Helvetica-BoldOblique" },
+ { "Helvetica,Italic", "Helvetica-Oblique" },
+ { "Helvetica-BoldItalic", "Helvetica-BoldOblique" },
+ { "Helvetica-Italic", "Helvetica-Oblique" },
+ { "TimesNewRoman", "Times-Roman" },
+ { "TimesNewRoman,Bold", "Times-Bold" },
+ { "TimesNewRoman,BoldItalic", "Times-BoldItalic" },
+ { "TimesNewRoman,Italic", "Times-Italic" },
+ { "TimesNewRoman-Bold", "Times-Bold" },
+ { "TimesNewRoman-BoldItalic", "Times-BoldItalic" },
+ { "TimesNewRoman-Italic", "Times-Italic" },
+ { "TimesNewRomanPS", "Times-Roman" },
+ { "TimesNewRomanPS-Bold", "Times-Bold" },
+ { "TimesNewRomanPS-BoldItalic", "Times-BoldItalic" },
+ { "TimesNewRomanPS-BoldItalicMT", "Times-BoldItalic" },
+ { "TimesNewRomanPS-BoldMT", "Times-Bold" },
+ { "TimesNewRomanPS-Italic", "Times-Italic" },
+ { "TimesNewRomanPS-ItalicMT", "Times-Italic" },
+ { "TimesNewRomanPSMT", "Times-Roman" }
};
//------------------------------------------------------------------------
// GfxFont
//------------------------------------------------------------------------
-GfxFont::GfxFont(char *tag1, Ref id1, Dict *fontDict) {
- BuiltinFont *builtinFont;
- Object obj1, obj2, obj3, obj4;
- int missingWidth;
- char *name2, *p;
- int i;
+GfxFont *GfxFont::makeFont(XRef *xref, char *tagA, Ref idA, Dict *fontDict) {
+ GString *nameA;
+ GfxFont *font;
+ Object obj1;
- // get font tag and ID
- tag = new GString(tag1);
- id = id1;
+ // get base font name
+ nameA = NULL;
+ fontDict->lookup("BaseFont", &obj1);
+ if (obj1.isName()) {
+ nameA = new GString(obj1.getName());
+ }
+ obj1.free();
// get font type
- type = fontUnknownType;
+ font = NULL;
fontDict->lookup("Subtype", &obj1);
- if (obj1.isName("Type1"))
- type = fontType1;
- else if (obj1.isName("Type1C"))
- type = fontType1C;
- else if (obj1.isName("Type3"))
- type = fontType3;
- else if (obj1.isName("TrueType"))
- type = fontTrueType;
- else if (obj1.isName("Type0"))
- type = fontType0;
+ if (obj1.isName("Type1") || obj1.isName("MMType1")) {
+ font = new Gfx8BitFont(xref, tagA, idA, nameA, fontType1, fontDict);
+ } else if (obj1.isName("Type1C")) {
+ font = new Gfx8BitFont(xref, tagA, idA, nameA, fontType1C, fontDict);
+ } else if (obj1.isName("Type3")) {
+ font = new Gfx8BitFont(xref, tagA, idA, nameA, fontType3, fontDict);
+ } else if (obj1.isName("TrueType")) {
+ font = new Gfx8BitFont(xref, tagA, idA, nameA, fontTrueType, fontDict);
+ } else if (obj1.isName("Type0")) {
+ font = new GfxCIDFont(xref, tagA, idA, nameA, fontDict);
+ } else {
+ error(-1, "Unknown font type: '%s'",
+ obj1.isName() ? obj1.getName() : "???");
+ font = new Gfx8BitFont(xref, tagA, idA, nameA, fontUnknownType, fontDict);
+ }
obj1.free();
- is16 = gFalse;
- // get base font name
- name = NULL;
- fontDict->lookup("BaseFont", &obj1);
- if (obj1.isName())
- name = new GString(obj1.getName());
- obj1.free();
+ return font;
+}
- // Newer Adobe tools are using Base14-compatible TrueType fonts
- // without embedding them, so munge the names into the equivalent
- // PostScript names. This is a kludge -- it would be nice if Adobe
- // followed their own spec.
- if (type == fontTrueType) {
- p = name->getCString();
- name2 = NULL;
- if (!strncmp(p, "Arial", 5)) {
- if (!strcmp(p+5, ",Bold")) {
- name2 = "Helvetica-Bold";
- } else if (!strcmp(p+5, ",Italic")) {
- name2 = "Helvetica-Oblique";
- } else if (!strcmp(p+5, ",BoldItalic")) {
- name2 = "Helvetica-BoldOblique";
- } else {
- name2 = "Helvetica";
- }
- } else if (!strncmp(p, "TimesNewRoman", 13)) {
- if (!strcmp(p+13, ",Bold")) {
- name2 = "Times-Bold";
- } else if (!strcmp(p+13, ",Italic")) {
- name2 = "Times-Italic";
- } else if (!strcmp(p+13, ",BoldItalic")) {
- name2 = "Times-BoldItalic";
- } else {
- name2 = "Times-Roman";
- }
- } else if (!strncmp(p, "CourierNew", 10)) {
- if (!strcmp(p+10, ",Bold")) {
- name2 = "Courier-Bold";
- } else if (!strcmp(p+10, ",Italic")) {
- name2 = "Courier-Oblique";
- } else if (!strcmp(p+10, ",BoldItalic")) {
- name2 = "Courier-BoldOblique";
- } else {
- name2 = "Courier";
- }
- }
- if (name2) {
- delete name;
- name = new GString(name2);
- }
- }
+GfxFont::GfxFont(char *tagA, Ref idA, GString *nameA) {
+ ok = gFalse;
+ tag = new GString(tagA);
+ id = idA;
+ name = nameA;
+ embFontName = NULL;
+ extFontFile = NULL;
+}
- // is it a built-in font?
- builtinFont = NULL;
+GfxFont::~GfxFont() {
+ delete tag;
if (name) {
- for (i = 0; i < numBuiltinFonts; ++i) {
- if (!strcmp(builtinFonts[i].name, name->getCString())) {
- builtinFont = &builtinFonts[i];
- break;
- }
- }
+ delete name;
+ }
+ if (embFontName) {
+ delete embFontName;
+ }
+ if (extFontFile) {
+ delete extFontFile;
}
+}
+
+void GfxFont::readFontDescriptor(XRef *xref, Dict *fontDict) {
+ Object obj1, obj2, obj3, obj4;
+ double t;
+ int i;
// assume Times-Roman by default (for substitution purposes)
flags = fontSerif;
- // get info from font descriptor
- embFontName = NULL;
embFontID.num = -1;
embFontID.gen = -1;
missingWidth = 0;
- fontDict->lookup("FontDescriptor", &obj1);
- if (obj1.isDict()) {
+
+ if (fontDict->lookup("FontDescriptor", &obj1)->isDict()) {
// get flags
- obj1.dictLookup("Flags", &obj2);
- if (obj2.isInt())
+ if (obj1.dictLookup("Flags", &obj2)->isInt()) {
flags = obj2.getInt();
+ }
obj2.free();
// get name
obj1.dictLookup("FontName", &obj2);
- if (obj2.isName())
+ if (obj2.isName()) {
embFontName = new GString(obj2.getName());
+ }
obj2.free();
// look for embedded font file
- if (type == fontType1) {
- obj1.dictLookupNF("FontFile", &obj2);
- if (obj2.isRef())
+ if (obj1.dictLookupNF("FontFile", &obj2)->isRef()) {
+ if (type == fontType1) {
embFontID = obj2.getRef();
- obj2.free();
+ } else {
+ error(-1, "Mismatch between font type and embedded font file");
+ }
}
- if (embFontID.num == -1 && type == fontTrueType) {
- obj1.dictLookupNF("FontFile2", &obj2);
- if (obj2.isRef())
+ obj2.free();
+ if (embFontID.num == -1 &&
+ obj1.dictLookupNF("FontFile2", &obj2)->isRef()) {
+ if (type == fontTrueType || type == fontCIDType2) {
embFontID = obj2.getRef();
- obj2.free();
+ } else {
+ error(-1, "Mismatch between font type and embedded font file");
+ }
}
- if (embFontID.num == -1) {
- obj1.dictLookupNF("FontFile3", &obj2);
- if (obj2.isRef()) {
- embFontID = obj2.getRef();
- obj2.fetch(&obj3);
- if (obj3.isStream()) {
- obj3.streamGetDict()->lookup("Subtype", &obj4);
- if (obj4.isName("Type1"))
- type = fontType1;
- else if (obj4.isName("Type1C"))
+ obj2.free();
+ if (embFontID.num == -1 &&
+ obj1.dictLookupNF("FontFile3", &obj2)->isRef()) {
+ if (obj2.fetch(xref, &obj3)->isStream()) {
+ obj3.streamGetDict()->lookup("Subtype", &obj4);
+ if (obj4.isName("Type1")) {
+ if (type == fontType1) {
+ embFontID = obj2.getRef();
+ } else {
+ error(-1, "Mismatch between font type and embedded font file");
+ }
+ } else if (obj4.isName("Type1C")) {
+ if (type == fontType1) {
type = fontType1C;
- else if (obj4.isName("Type3"))
- type = fontType3;
- else if (obj4.isName("TrueType"))
- type = fontTrueType;
- else if (obj4.isName("Type0"))
- type = fontType0;
- obj4.free();
+ embFontID = obj2.getRef();
+ } else if (type == fontType1C) {
+ embFontID = obj2.getRef();
+ } else {
+ error(-1, "Mismatch between font type and embedded font file");
+ }
+ } else if (obj4.isName("TrueType")) {
+ if (type == fontTrueType) {
+ embFontID = obj2.getRef();
+ } else {
+ error(-1, "Mismatch between font type and embedded font file");
+ }
+ } else if (obj4.isName("CIDFontType0C")) {
+ if (type == fontCIDType0) {
+ type = fontCIDType0C;
+ embFontID = obj2.getRef();
+ } else {
+ error(-1, "Mismatch between font type and embedded font file");
+ }
+ } else {
+ error(-1, "Unknown embedded font type '%s'",
+ obj4.isName() ? obj4.getName() : "???");
}
- obj3.free();
+ obj4.free();
}
- obj2.free();
+ obj3.free();
}
+ obj2.free();
// look for MissingWidth
obj1.dictLookup("MissingWidth", &obj2);
- if (obj2.isInt()) {
- missingWidth = obj2.getInt();
+ if (obj2.isNum()) {
+ missingWidth = obj2.getNum();
}
obj2.free();
- }
- obj1.free();
-
- // get Type3 font definition
- if (type == fontType3) {
- fontDict->lookup("CharProcs", &charProcs);
- if (!charProcs.isDict()) {
- error(-1, "Missing or invalid CharProcs dictionary in Type 3 font");
- charProcs.free();
- }
- }
-
- // look for an external font file
- extFontFile = NULL;
- if (type == fontType1 && name)
- findExtFontFile();
-
- // get font matrix
- fontMat[0] = fontMat[3] = 1;
- fontMat[1] = fontMat[2] = fontMat[4] = fontMat[5] = 0;
- if (fontDict->lookup("FontMatrix", &obj1)->isArray()) {
- for (i = 0; i < 6 && i < obj1.arrayGetLength(); ++i) {
- if (obj1.arrayGet(i, &obj2)->isNum())
- fontMat[i] = obj2.getNum();
- obj2.free();
- }
- }
- obj1.free();
-
- // get encoding and character widths
- if (type == fontType0) {
- getType0EncAndWidths(fontDict);
- } else {
- getEncAndWidths(fontDict, builtinFont, missingWidth);
- }
-}
-
-GfxFont::~GfxFont() {
- delete tag;
- if (name) {
- delete name;
- }
- if (!is16 && encoding) {
- delete encoding;
- }
- if (embFontName) {
- delete embFontName;
- }
- if (extFontFile) {
- delete extFontFile;
- }
- if (charProcs.isDict()) {
- charProcs.free();
- }
- if (is16) {
- gfree(widths16.exceps);
- gfree(widths16.excepsV);
- }
-}
-
-double GfxFont::getWidth(GString *s) {
- double w;
- int i;
- w = 0;
- for (i = 0; i < s->getLength(); ++i)
- w += widths[s->getChar(i) & 0xff];
- return w;
-}
-
-double GfxFont::getWidth16(int c) {
- double w;
- int a, b, m;
-
- w = widths16.defWidth;
- a = -1;
- b = widths16.numExceps;
- // invariant: widths16.exceps[a].last < c < widths16.exceps[b].first
- while (b - a > 1) {
- m = (a + b) / 2;
- if (widths16.exceps[m].last < c) {
- a = m;
- } else if (c < widths16.exceps[m].first) {
- b = m;
- } else {
- w = widths16.exceps[m].width;
- break;
- }
- }
- return w;
-}
-
-double GfxFont::getHeight16(int c) {
- double h;
- int a, b, m;
-
- h = widths16.defHeight;
- a = -1;
- b = widths16.numExcepsV;
- // invariant: widths16.excepsV[a].last < c < widths16.excepsV[b].first
- while (b - a > 1) {
- m = (a + b) / 2;
- if (widths16.excepsV[m].last < c) {
- a = m;
- } else if (c < widths16.excepsV[m].first) {
- b = m;
- } else {
- h = widths16.excepsV[m].height;
- break;
- }
- }
- return h;
-}
-
-double GfxFont::getOriginX16(int c) {
- double vx;
- int a, b, m;
-
- vx = widths16.defWidth / 2;
- a = -1;
- b = widths16.numExcepsV;
- // invariant: widths16.excepsV[a].last < c < widths16.excepsV[b].first
- while (b - a > 1) {
- m = (a + b) / 2;
- if (widths16.excepsV[m].last < c) {
- a = m;
- } else if (c < widths16.excepsV[m].first) {
- b = m;
- } else {
- vx = widths16.excepsV[m].vx;
- break;
- }
- }
- return vx;
-}
-
-double GfxFont::getOriginY16(int c) {
- double vy;
- int a, b, m;
-
- vy = widths16.defVY;
- a = -1;
- b = widths16.numExcepsV;
- // invariant: widths16.excepsV[a].last < c < widths16.excepsV[b].first
- while (b - a > 1) {
- m = (a + b) / 2;
- if (widths16.excepsV[m].last < c) {
- a = m;
- } else if (c < widths16.excepsV[m].first) {
- b = m;
- } else {
- vy = widths16.excepsV[m].vy;
- break;
- }
- }
- return vy;
-}
-
-Object *GfxFont::getCharProc(int code, Object *proc) {
- if (charProcs.isDict()) {
- charProcs.dictLookup(encoding->getCharName(code), proc);
- } else {
- proc->initNull();
- }
- return proc;
-}
-
-void GfxFont::getEncAndWidths(Dict *fontDict, BuiltinFont *builtinFont,
- int missingWidth) {
- Object obj1, obj2, obj3;
- char *buf;
- int len;
- FontFile *fontFile;
- int code, i;
-
- // Encodings start with a base encoding, which can come from
- // (in order of priority):
- // 1. FontDict.Encoding or FontDict.Encoding.BaseEncoding
- // - MacRoman / WinAnsi / Standard
- // 2. embedded font file
- // 3. default:
- // - builtin --> builtin encoding
- // - TrueType --> MacRomanEncoding
- // - others --> StandardEncoding
- // and then add a list of differences from
- // FontDict.Encoding.Differences.
-
- // check FontDict for base encoding
- encoding = NULL;
- fontDict->lookup("Encoding", &obj1);
- if (obj1.isDict()) {
- obj1.dictLookup("BaseEncoding", &obj2);
- if (obj2.isName("MacRomanEncoding")) {
- encoding = macRomanEncoding.copy();
- } else if (obj2.isName("WinAnsiEncoding")) {
- encoding = winAnsiEncoding.copy();
- } else if (obj2.isName("StandardEncoding")) {
- encoding = standardEncoding.copy();
+ // get Ascent and Descent
+ obj1.dictLookup("Ascent", &obj2);
+ if (obj2.isNum()) {
+ t = 0.001 * obj2.getNum();
+ // some broken font descriptors set ascent and descent to 0
+ if (t != 0) {
+ ascent = t;
+ }
}
obj2.free();
- } else if (obj1.isName("MacRomanEncoding")) {
- encoding = macRomanEncoding.copy();
- } else if (obj1.isName("WinAnsiEncoding")) {
- encoding = winAnsiEncoding.copy();
- } else if (obj1.isName("StandardEncoding")) {
- encoding = standardEncoding.copy();
- }
- obj1.free();
-
- // check embedded or external font file for base encoding
- if ((type == fontType1 || type == fontType1C) &&
- (extFontFile || embFontID.num >= 0)) {
- if (extFontFile)
- buf = readExtFontFile(&len);
- else
- buf = readEmbFontFile(&len);
- if (buf) {
- if (type == fontType1)
- fontFile = new Type1FontFile(buf, len);
- else
- fontFile = new Type1CFontFile(buf, len);
- if (fontFile->getName()) {
- if (embFontName)
- delete embFontName;
- embFontName = new GString(fontFile->getName());
+ obj1.dictLookup("Descent", &obj2);
+ if (obj2.isNum()) {
+ t = 0.001 * obj2.getNum();
+ // some broken font descriptors set ascent and descent to 0
+ if (t != 0) {
+ descent = t;
}
- if (!encoding)
- encoding = fontFile->getEncoding(gTrue);
- delete fontFile;
- gfree(buf);
}
- }
-
- // get default base encoding
- if (!encoding) {
- if (builtinFont)
- encoding = builtinFont->encoding->copy();
- else if (type == fontTrueType)
- encoding = macRomanEncoding.copy();
- else
- encoding = standardEncoding.copy();
- }
+ obj2.free();
- // merge differences into encoding
- fontDict->lookup("Encoding", &obj1);
- if (obj1.isDict()) {
- obj1.dictLookup("Differences", &obj2);
- if (obj2.isArray()) {
- code = 0;
- for (i = 0; i < obj2.arrayGetLength(); ++i) {
- obj2.arrayGet(i, &obj3);
- if (obj3.isInt()) {
- code = obj3.getInt();
- } else if (obj3.isName()) {
- if (code < 256)
- encoding->addChar(code, copyString(obj3.getName()));
- ++code;
- } else {
- error(-1, "Wrong type in font encoding resource differences (%s)",
- obj3.getTypeName());
+ // font FontBBox
+ if (obj1.dictLookup("FontBBox", &obj2)->isArray()) {
+ for (i = 0; i < 4 && i < obj2.arrayGetLength(); ++i) {
+ if (obj2.arrayGet(i, &obj3)->isNum()) {
+ fontBBox[i] = 0.001 * obj3.getNum();
}
obj3.free();
}
}
obj2.free();
+
}
obj1.free();
+}
+
+CharCodeToUnicode *GfxFont::readToUnicodeCMap(Dict *fontDict, int nBits) {
+ CharCodeToUnicode *ctu;
+ GString *buf;
+ Object obj1;
+ int c;
- // get character widths
- if (builtinFont)
- makeWidths(fontDict, builtinFont->encoding, builtinFont->widths,
- missingWidth);
- else
- makeWidths(fontDict, NULL, NULL, missingWidth);
+ if (!fontDict->lookup("ToUnicode", &obj1)->isStream()) {
+ obj1.free();
+ return NULL;
+ }
+ buf = new GString();
+ obj1.streamReset();
+ while ((c = obj1.streamGetChar()) != EOF) {
+ buf->append(c);
+ }
+ obj1.streamClose();
+ obj1.free();
+ ctu = CharCodeToUnicode::parseCMap(buf, nBits);
+ delete buf;
+ return ctu;
}
void GfxFont::findExtFontFile() {
- char **path;
- FILE *f;
-
- for (path = fontPath; *path; ++path) {
- extFontFile = appendToPath(new GString(*path), name->getCString());
- f = fopen(extFontFile->getCString(), "rb");
- if (!f) {
- extFontFile->append(".pfb");
- f = fopen(extFontFile->getCString(), "rb");
- }
- if (!f) {
- extFontFile->del(extFontFile->getLength() - 4, 4);
- extFontFile->append(".pfa");
- f = fopen(extFontFile->getCString(), "rb");
- }
- if (f) {
- fclose(f);
- break;
+ if (name) {
+ if (type == fontType1) {
+ extFontFile = globalParams->findFontFile(name, ".pfa", ".pfb");
+ } else if (type == fontTrueType) {
+ extFontFile = globalParams->findFontFile(name, ".ttf", NULL);
}
- delete extFontFile;
- extFontFile = NULL;
}
}
char *buf;
if (!(f = fopen(extFontFile->getCString(), "rb"))) {
- error(-1, "Internal: external font file '%s' vanished", extFontFile);
+ error(-1, "External font file '%s' vanished", extFontFile->getCString());
return NULL;
}
fseek(f, 0, SEEK_END);
*len = (int)ftell(f);
fseek(f, 0, SEEK_SET);
buf = (char *)gmalloc(*len);
- if ((int)fread(buf, 1, *len, f) != *len)
+ if ((int)fread(buf, 1, *len, f) != *len) {
error(-1, "Error reading external font file '%s'", extFontFile);
+ }
fclose(f);
return buf;
}
-char *GfxFont::readEmbFontFile(int *len) {
+char *GfxFont::readEmbFontFile(XRef *xref, int *len) {
char *buf;
Object obj1, obj2;
Stream *str;
int size, i;
obj1.initRef(embFontID.num, embFontID.gen);
- obj1.fetch(&obj2);
+ obj1.fetch(xref, &obj2);
if (!obj2.isStream()) {
error(-1, "Embedded font file is not a stream");
obj2.free();
return buf;
}
-void GfxFont::makeWidths(Dict *fontDict, FontEncoding *builtinEncoding,
- Gushort *builtinWidths, int missingWidth) {
- Object obj1, obj2;
- int firstChar, lastChar;
+//------------------------------------------------------------------------
+// Gfx8BitFont
+//------------------------------------------------------------------------
+
+Gfx8BitFont::Gfx8BitFont(XRef *xref, char *tagA, Ref idA, GString *nameA,
+ GfxFontType typeA, Dict *fontDict):
+ GfxFont(tagA, idA, nameA)
+{
+ BuiltinFont *builtinFont;
+ char **baseEnc;
+ GBool baseEncFromFontFile;
+ char *buf;
+ int len;
+ FontFile *fontFile;
int code, code2;
char *charName;
- Gushort *defWidths;
- int index;
- double mult;
+ GBool missing, hex;
+ Unicode toUnicode[256];
+ double mul;
+ int firstChar, lastChar;
+ Gushort w;
+ Object obj1, obj2, obj3;
+ int n, i, a, b, m;
- // initialize all widths
- for (code = 0; code < 256; ++code) {
- widths[code] = missingWidth * 0.001;
- }
+ type = typeA;
+ ctu = NULL;
- // use widths from built-in font
- if (builtinEncoding) {
- code2 = 0; // to make gcc happy
- for (code = 0; code < 256; ++code) {
- if ((charName = encoding->getCharName(code)) &&
- (code2 = builtinEncoding->getCharCode(charName)) >= 0)
- widths[code] = builtinWidths[code2] * 0.001;
+ // Acrobat 4.0 and earlier substituted Base14-compatible fonts
+ // without providing Widths and a FontDescriptor, so we munge the
+ // names into the proper Base14 names. (This table is from
+ // implementation note 44 in the PDF 1.4 spec.)
+ if (name) {
+ a = 0;
+ b = sizeof(stdFontMap) / sizeof(StdFontMapEntry);
+ // invariant: stdFontMap[a].altName <= name < stdFontMap[b].altName
+ while (b - a > 1) {
+ m = (a + b) / 2;
+ if (name->cmp(stdFontMap[m].altName) >= 0) {
+ a = m;
+ } else {
+ b = m;
+ }
+ }
+ if (!name->cmp(stdFontMap[a].altName)) {
+ delete name;
+ name = new GString(stdFontMap[a].properName);
}
+ }
- // get widths from font dict
+ // is it a built-in font?
+ builtinFont = NULL;
+ if (name) {
+ for (i = 0; i < nBuiltinFonts; ++i) {
+ if (!name->cmp(builtinFonts[i].name)) {
+ builtinFont = &builtinFonts[i];
+ break;
+ }
+ }
+ }
+
+ // default ascent/descent values
+ if (builtinFont) {
+ ascent = 0.001 * builtinFont->ascent;
+ descent = 0.001 * builtinFont->descent;
+ fontBBox[0] = 0.001 * builtinFont->bbox[0];
+ fontBBox[1] = 0.001 * builtinFont->bbox[1];
+ fontBBox[2] = 0.001 * builtinFont->bbox[2];
+ fontBBox[3] = 0.001 * builtinFont->bbox[3];
} else {
- fontDict->lookup("FirstChar", &obj1);
- firstChar = obj1.isInt() ? obj1.getInt() : 0;
- obj1.free();
- fontDict->lookup("LastChar", &obj1);
- lastChar = obj1.isInt() ? obj1.getInt() : 255;
- obj1.free();
- if (type == fontType3)
- mult = fontMat[0];
- else
- mult = 0.001;
- fontDict->lookup("Widths", &obj1);
- if (obj1.isArray()) {
- for (code = firstChar; code <= lastChar; ++code) {
- obj1.arrayGet(code - firstChar, &obj2);
- if (obj2.isNum())
- widths[code] = obj2.getNum() * mult;
+ ascent = 0.95;
+ descent = -0.35;
+ fontBBox[0] = fontBBox[1] = fontBBox[2] = fontBBox[3] = 0;
+ }
+
+ // get info from font descriptor
+ readFontDescriptor(xref, fontDict);
+
+ // look for an external font file
+ findExtFontFile();
+
+ // get font matrix
+ fontMat[0] = fontMat[3] = 1;
+ fontMat[1] = fontMat[2] = fontMat[4] = fontMat[5] = 0;
+ if (fontDict->lookup("FontMatrix", &obj1)->isArray()) {
+ for (i = 0; i < 6 && i < obj1.arrayGetLength(); ++i) {
+ if (obj1.arrayGet(i, &obj2)->isNum()) {
+ fontMat[i] = obj2.getNum();
+ }
+ obj2.free();
+ }
+ }
+ obj1.free();
+
+ // get Type 3 bounding box, font definition, and resources
+ if (type == fontType3) {
+ if (fontDict->lookup("FontBBox", &obj1)->isArray()) {
+ for (i = 0; i < 4 && i < obj1.arrayGetLength(); ++i) {
+ if (obj1.arrayGet(i, &obj2)->isNum()) {
+ fontBBox[i] = obj2.getNum();
+ }
obj2.free();
}
+ }
+ obj1.free();
+ if (!fontDict->lookup("CharProcs", &charProcs)->isDict()) {
+ error(-1, "Missing or invalid CharProcs dictionary in Type 3 font");
+ charProcs.free();
+ }
+ if (!fontDict->lookup("Resources", &resources)->isDict()) {
+ resources.free();
+ }
+ }
+
+ //----- build the font encoding -----
+
+ // Encodings start with a base encoding, which can come from
+ // (in order of priority):
+ // 1. FontDict.Encoding or FontDict.Encoding.BaseEncoding
+ // - MacRoman / MacExpert / WinAnsi / Standard
+ // 2. embedded or external font file
+ // 3. default:
+ // - builtin --> builtin encoding
+ // - TrueType --> MacRomanEncoding
+ // - others --> StandardEncoding
+ // and then add a list of differences (if any) from
+ // FontDict.Encoding.Differences.
+
+ // check FontDict for base encoding
+ hasEncoding = gFalse;
+ baseEnc = NULL;
+ baseEncFromFontFile = gFalse;
+ fontDict->lookup("Encoding", &obj1);
+ if (obj1.isDict()) {
+ obj1.dictLookup("BaseEncoding", &obj2);
+ if (obj2.isName("MacRomanEncoding")) {
+ hasEncoding = gTrue;
+ baseEnc = macRomanEncoding;
+ } else if (obj2.isName("MacExpertEncoding")) {
+ hasEncoding = gTrue;
+ baseEnc = macExpertEncoding;
+ } else if (obj2.isName("WinAnsiEncoding")) {
+ hasEncoding = gTrue;
+ baseEnc = winAnsiEncoding;
+ } else if (obj2.isName("StandardEncoding")) {
+ hasEncoding = gTrue;
+ baseEnc = standardEncoding;
+ }
+ obj2.free();
+ } else if (obj1.isName("MacRomanEncoding")) {
+ hasEncoding = gTrue;
+ baseEnc = macRomanEncoding;
+ } else if (obj1.isName("MacExpertEncoding")) {
+ hasEncoding = gTrue;
+ baseEnc = macExpertEncoding;
+ } else if (obj1.isName("WinAnsiEncoding")) {
+ hasEncoding = gTrue;
+ baseEnc = winAnsiEncoding;
+ } else if (obj1.isName("StandardEncoding")) {
+ hasEncoding = gTrue;
+ baseEnc = standardEncoding;
+ }
+
+ // check embedded or external font file for base encoding
+ // (only for Type 1 fonts - trying to get an encoding out of a
+ // TrueType font is a losing proposition)
+ fontFile = NULL;
+ buf = NULL;
+ if ((type == fontType1 || type == fontType1C) &&
+ (extFontFile || embFontID.num >= 0)) {
+ if (extFontFile) {
+ buf = readExtFontFile(&len);
+ } else {
+ buf = readEmbFontFile(xref, &len);
+ }
+ if (buf) {
+ if (type == fontType1C && !strncmp(buf, "%!", 2)) {
+ // various tools (including Adobe's) occasionally embed Type 1
+ // fonts but label them Type 1C
+ type = fontType1;
+ }
+ if (type == fontType1) {
+ fontFile = new Type1FontFile(buf, len);
+ } else {
+ fontFile = new Type1CFontFile(buf, len);
+ }
+ if (fontFile->getName()) {
+ if (embFontName) {
+ delete embFontName;
+ }
+ embFontName = new GString(fontFile->getName());
+ }
+ if (!baseEnc) {
+ baseEnc = fontFile->getEncoding();
+ baseEncFromFontFile = gTrue;
+ }
+ gfree(buf);
+ }
+ }
+
+ // get default base encoding
+ if (!baseEnc) {
+ if (builtinFont) {
+ baseEnc = builtinFont->defaultBaseEnc;
+ } else if (type == fontTrueType) {
+ baseEnc = macRomanEncoding;
} else {
+ baseEnc = standardEncoding;
+ }
+ }
- // couldn't find widths -- use defaults
-#if 0 //~
- //~ certain PDF generators apparently don't include widths
- //~ for Arial and TimesNewRoman -- and this error message
- //~ is a nuisance
- error(-1, "No character widths resource for non-builtin font");
-#endif
- if (isFixedWidth())
- index = 0;
- else if (isSerif())
- index = 8;
- else
- index = 4;
- if (isBold())
- index += 2;
- if (isItalic())
- index += 1;
- defWidths = defCharWidths[index];
- code2 = 0; // to make gcc happy
+ // copy the base encoding
+ for (i = 0; i < 256; ++i) {
+ enc[i] = baseEnc[i];
+ if ((encFree[i] = baseEncFromFontFile) && enc[i]) {
+ enc[i] = copyString(baseEnc[i]);
+ }
+ }
+
+ // merge differences into encoding
+ if (obj1.isDict()) {
+ obj1.dictLookup("Differences", &obj2);
+ if (obj2.isArray()) {
+ hasEncoding = gTrue;
+ code = 0;
+ for (i = 0; i < obj2.arrayGetLength(); ++i) {
+ obj2.arrayGet(i, &obj3);
+ if (obj3.isInt()) {
+ code = obj3.getInt();
+ } else if (obj3.isName()) {
+ if (code < 256) {
+ if (encFree[code]) {
+ gfree(enc[code]);
+ }
+ enc[code] = copyString(obj3.getName());
+ encFree[code] = gTrue;
+ }
+ ++code;
+ } else {
+ error(-1, "Wrong type in font encoding resource differences (%s)",
+ obj3.getTypeName());
+ }
+ obj3.free();
+ }
+ }
+ obj2.free();
+ }
+ obj1.free();
+ if (fontFile) {
+ delete fontFile;
+ }
+
+ //----- build the mapping to Unicode -----
+
+ // look for a ToUnicode CMap
+ if (!(ctu = readToUnicodeCMap(fontDict, 8))) {
+
+ // no ToUnicode CMap, so use the char names
+
+ // pass 1: use the name-to-Unicode mapping table
+ missing = hex = gFalse;
+ for (code = 0; code < 256; ++code) {
+ if ((charName = enc[code])) {
+ if (!(toUnicode[code] = globalParams->mapNameToUnicode(charName)) &&
+ strcmp(charName, ".notdef")) {
+ // if it wasn't in the name-to-Unicode table, check for a
+ // name that looks like 'Axx' or 'xx', where 'A' is any letter
+ // and 'xx' is two hex digits
+ if ((strlen(charName) == 3 &&
+ isalpha(charName[0]) &&
+ isxdigit(charName[1]) && isxdigit(charName[2]) &&
+ ((charName[1] >= 'a' && charName[1] <= 'f') ||
+ (charName[1] >= 'A' && charName[1] <= 'F') ||
+ (charName[2] >= 'a' && charName[2] <= 'f') ||
+ (charName[2] >= 'A' && charName[2] <= 'F'))) ||
+ (strlen(charName) == 2 &&
+ isxdigit(charName[0]) && isxdigit(charName[1]) &&
+ ((charName[0] >= 'a' && charName[0] <= 'f') ||
+ (charName[0] >= 'A' && charName[0] <= 'F') ||
+ (charName[1] >= 'a' && charName[1] <= 'f') ||
+ (charName[1] >= 'A' && charName[1] <= 'F')))) {
+ hex = gTrue;
+ }
+ missing = gTrue;
+ }
+ } else {
+ toUnicode[code] = 0;
+ }
+ }
+
+ // pass 2: try to fill in the missing chars, looking for names of
+ // the form 'Axx', 'xx', 'Ann', 'ABnn', or 'nn', where 'A' and 'B'
+ // are any letters, 'xx' is two hex digits, and 'nn' is 2-4
+ // decimal digits
+ if (missing && globalParams->getMapNumericCharNames()) {
for (code = 0; code < 256; ++code) {
- if ((charName = encoding->getCharName(code)) &&
- (code2 = standardEncoding.getCharCode(charName)) >= 0)
- widths[code] = defWidths[code2] * 0.001;
+ if ((charName = enc[code]) && !toUnicode[code] &&
+ strcmp(charName, ".notdef")) {
+ n = strlen(charName);
+ code2 = -1;
+ if (hex && n == 3 && isalpha(charName[0]) &&
+ isxdigit(charName[1]) && isxdigit(charName[2])) {
+ sscanf(charName+1, "%x", &code2);
+ } else if (hex && n == 2 &&
+ isxdigit(charName[0]) && isxdigit(charName[1])) {
+ sscanf(charName, "%x", &code2);
+ } else if (!hex && n >= 2 && n <= 4 &&
+ isdigit(charName[0]) && isdigit(charName[1])) {
+ code2 = atoi(charName);
+ } else if (n >= 3 && n <= 5 &&
+ isdigit(charName[1]) && isdigit(charName[2])) {
+ code2 = atoi(charName+1);
+ } else if (n >= 4 && n <= 6 &&
+ isdigit(charName[2]) && isdigit(charName[3])) {
+ code2 = atoi(charName+2);
+ }
+ if (code2 >= 0 && code2 <= 0xff) {
+ toUnicode[code] = (Unicode)code2;
+ }
+ }
}
}
- obj1.free();
+
+ ctu = CharCodeToUnicode::make8BitToUnicode(toUnicode);
+ }
+
+ //----- get the character widths -----
+
+ // initialize all widths
+ for (code = 0; code < 256; ++code) {
+ widths[code] = missingWidth * 0.001;
+ }
+
+ // use widths from font dict, if present
+ fontDict->lookup("FirstChar", &obj1);
+ firstChar = obj1.isInt() ? obj1.getInt() : 0;
+ obj1.free();
+ fontDict->lookup("LastChar", &obj1);
+ lastChar = obj1.isInt() ? obj1.getInt() : 255;
+ obj1.free();
+ mul = (type == fontType3) ? fontMat[0] : 0.001;
+ fontDict->lookup("Widths", &obj1);
+ if (obj1.isArray()) {
+ flags |= fontFixedWidth;
+ for (code = firstChar; code <= lastChar; ++code) {
+ obj1.arrayGet(code - firstChar, &obj2);
+ if (obj2.isNum()) {
+ widths[code] = obj2.getNum() * mul;
+ if (widths[code] != widths[firstChar]) {
+ flags &= ~fontFixedWidth;
+ }
+ }
+ obj2.free();
+ }
+
+ // use widths from built-in font
+ } else if (builtinFont) {
+ // this is a kludge for broken PDF files that encode char 32
+ // as .notdef
+ if (builtinFont->widths->getWidth("space", &w)) {
+ widths[32] = 0.001 * w;
+ }
+ for (code = 0; code < 256; ++code) {
+ if (enc[code] && builtinFont->widths->getWidth(enc[code], &w)) {
+ widths[code] = 0.001 * w;
+ }
+ }
+
+ // couldn't find widths -- use defaults
+ } else {
+ // this is technically an error -- the Widths entry is required
+ // for all but the Base-14 fonts -- but certain PDF generators
+ // apparently don't include widths for Arial and TimesNewRoman
+ if (isFixedWidth()) {
+ i = 0;
+ } else if (isSerif()) {
+ i = 8;
+ } else {
+ i = 4;
+ }
+ if (isBold()) {
+ i += 2;
+ }
+ if (isItalic()) {
+ i += 1;
+ }
+ builtinFont = builtinFontSubst[i];
+ // this is a kludge for broken PDF files that encode char 32
+ // as .notdef
+ if (builtinFont->widths->getWidth("space", &w)) {
+ widths[32] = 0.001 * w;
+ }
+ for (code = 0; code < 256; ++code) {
+ if (enc[code] && builtinFont->widths->getWidth(enc[code], &w)) {
+ widths[code] = 0.001 * w;
+ }
+ }
+ }
+ obj1.free();
+
+ ok = gTrue;
+}
+
+Gfx8BitFont::~Gfx8BitFont() {
+ int i;
+
+ for (i = 0; i < 256; ++i) {
+ if (encFree[i] && enc[i]) {
+ gfree(enc[i]);
+ }
+ }
+ ctu->decRefCnt();
+ if (charProcs.isDict()) {
+ charProcs.free();
+ }
+ if (resources.isDict()) {
+ resources.free();
}
}
-void GfxFont::getType0EncAndWidths(Dict *fontDict) {
- Object obj1, obj2, obj3, obj4, obj5, obj6, obj7, obj8;
- int excepsSize;
- int i, j, k, n;
+int Gfx8BitFont::getNextChar(char *s, int len, CharCode *code,
+ Unicode *u, int uSize, int *uLen,
+ double *dx, double *dy, double *ox, double *oy) {
+ CharCode c;
- widths16.exceps = NULL;
- widths16.excepsV = NULL;
+ *code = c = (CharCode)(*s & 0xff);
+ *uLen = ctu->mapToUnicode(c, u, uSize);
+ *dx = widths[c];
+ *dy = *ox = *oy = 0;
+ return 1;
+}
- // get the CIDFont
- fontDict->lookup("DescendantFonts", &obj1);
- if (!obj1.isArray() || obj1.arrayGetLength() != 1) {
- error(-1, "Bad DescendantFonts entry for Type 0 font");
+CharCodeToUnicode *Gfx8BitFont::getToUnicode() {
+ ctu->incRefCnt();
+ return ctu;
+}
+
+Dict *Gfx8BitFont::getCharProcs() {
+ return charProcs.isDict() ? charProcs.getDict() : (Dict *)NULL;
+}
+
+Object *Gfx8BitFont::getCharProc(int code, Object *proc) {
+ if (charProcs.isDict()) {
+ charProcs.dictLookup(enc[code], proc);
+ } else {
+ proc->initNull();
+ }
+ return proc;
+}
+
+Dict *Gfx8BitFont::getResources() {
+ return resources.isDict() ? resources.getDict() : (Dict *)NULL;
+}
+
+//------------------------------------------------------------------------
+// GfxCIDFont
+//------------------------------------------------------------------------
+
+static int cmpWidthExcep(const void *w1, const void *w2) {
+ return ((GfxFontCIDWidthExcep *)w1)->first -
+ ((GfxFontCIDWidthExcep *)w2)->first;
+}
+
+static int cmpWidthExcepV(const void *w1, const void *w2) {
+ return ((GfxFontCIDWidthExcepV *)w1)->first -
+ ((GfxFontCIDWidthExcepV *)w2)->first;
+}
+
+GfxCIDFont::GfxCIDFont(XRef *xref, char *tagA, Ref idA, GString *nameA,
+ Dict *fontDict):
+ GfxFont(tagA, idA, nameA)
+{
+ Dict *desFontDict;
+ GString *collection, *cMapName;
+ Object desFontDictObj;
+ Object obj1, obj2, obj3, obj4, obj5, obj6;
+ int c1, c2;
+ int excepsSize, i, j, k;
+
+ ascent = 0.95;
+ descent = -0.35;
+ fontBBox[0] = fontBBox[1] = fontBBox[2] = fontBBox[3] = 0;
+ cMap = NULL;
+ ctu = NULL;
+ widths.defWidth = 1.0;
+ widths.defHeight = -1.0;
+ widths.defVY = 0.880;
+ widths.exceps = NULL;
+ widths.nExceps = 0;
+ widths.excepsV = NULL;
+ widths.nExcepsV = 0;
+ cidToGID = NULL;
+ cidToGIDLen = 0;
+
+ // get the descendant font
+ if (!fontDict->lookup("DescendantFonts", &obj1)->isArray()) {
+ error(-1, "Missing DescendantFonts entry in Type 0 font");
+ obj1.free();
goto err1;
}
- obj1.arrayGet(0, &obj2);
- if (!obj2.isDict()) {
- error(-1, "Bad descendant font of Type 0 font");
- goto err2;
+ if (!obj1.arrayGet(0, &desFontDictObj)->isDict()) {
+ error(-1, "Bad descendant font in Type 0 font");
+ goto err3;
}
+ obj1.free();
+ desFontDict = desFontDictObj.getDict();
- // get font info
- obj2.dictLookup("CIDSystemInfo", &obj3);
- if (!obj3.isDict()) {
- error(-1, "Bad CIDSystemInfo in Type 0 font descendant");
+ // font type
+ if (!desFontDict->lookup("Subtype", &obj1)) {
+ error(-1, "Missing Subtype entry in Type 0 descendant font");
goto err3;
}
- obj3.dictLookup("Registry", &obj4);
- obj3.dictLookup("Ordering", &obj5);
- if (obj4.isString() && obj5.isString()) {
- if (obj4.getString()->cmp("Adobe") == 0 &&
- obj5.getString()->cmp("Japan1") == 0) {
-#if JAPANESE_SUPPORT
- is16 = gTrue;
- enc16.charSet = font16AdobeJapan12;
-#else
- error(-1, "Xpdf was compiled without Japanese font support");
- goto err4;
-#endif
- } else if (obj4.getString()->cmp("Adobe") == 0 &&
- obj5.getString()->cmp("GB1") == 0) {
-#if CHINESE_GB_SUPPORT
- is16 = gTrue;
- enc16.charSet = font16AdobeGB12;
-#else
- error(-1, "Xpdf was compiled without Chinese GB font support");
- goto err4;
-#endif
- } else if (obj4.getString()->cmp("Adobe") == 0 &&
- obj5.getString()->cmp("CNS1") == 0) {
-#if CHINESE_CNS_SUPPORT
- is16 = gTrue;
- enc16.charSet = font16AdobeCNS13;
-#else
- error(-1, "Xpdf was compiled without Chinese CNS font support");
- goto err4;
-#endif
- } else {
- error(-1, "Uknown Type 0 character set: %s-%s",
- obj4.getString()->getCString(), obj5.getString()->getCString());
- goto err4;
- }
+ if (obj1.isName("CIDFontType0")) {
+ type = fontCIDType0;
+ } else if (obj1.isName("CIDFontType2")) {
+ type = fontCIDType2;
} else {
- error(-1, "Unknown Type 0 character set");
+ error(-1, "Unknown Type 0 descendant font type '%s'",
+ obj1.isName() ? obj1.getName() : "???");
+ goto err3;
+ }
+ obj1.free();
+
+ // get info from font descriptor
+ readFontDescriptor(xref, desFontDict);
+
+ // look for an external font file
+ findExtFontFile();
+
+ //----- encoding info -----
+
+ // char collection
+ if (!desFontDict->lookup("CIDSystemInfo", &obj1)->isDict()) {
+ error(-1, "Missing CIDSystemInfo dictionary in Type 0 descendant font");
+ goto err3;
+ }
+ obj1.dictLookup("Registry", &obj2);
+ obj1.dictLookup("Ordering", &obj3);
+ if (!obj2.isString() || !obj3.isString()) {
+ error(-1, "Invalid CIDSystemInfo dictionary in Type 0 descendant font");
goto err4;
}
- obj5.free();
- obj4.free();
+ collection = obj2.getString()->copy()->append('-')->append(obj3.getString());
obj3.free();
+ obj2.free();
+ obj1.free();
- // get default char width
- obj2.dictLookup("DW", &obj3);
- if (obj3.isInt())
- widths16.defWidth = obj3.getInt() * 0.001;
- else
- widths16.defWidth = 1.0;
- obj3.free();
+ // look for a ToUnicode CMap
+ if (!(ctu = readToUnicodeCMap(fontDict, 16))) {
+
+ // the "Adobe-Identity" and "Adobe-UCS" collections don't have
+ // cidToUnicode files
+ if (collection->cmp("Adobe-Identity") &&
+ collection->cmp("Adobe-UCS")) {
- // get default char metrics for vertical font
- obj2.dictLookup("DW2", &obj3);
- widths16.defVY = 0.880;
- widths16.defHeight = -1;
- if (obj3.isArray() && obj3.arrayGetLength() == 2) {
- obj3.arrayGet(0, &obj4);
- if (obj4.isInt()) {
- widths16.defVY = obj4.getInt() * 0.001;
+ // look for a user-supplied .cidToUnicode file
+ if (!(ctu = globalParams->getCIDToUnicode(collection))) {
+ error(-1, "Unknown character collection '%s'",
+ collection->getCString());
+ delete collection;
+ goto err2;
+ }
}
- obj4.free();
- obj3.arrayGet(1, &obj4);
- if (obj4.isInt()) {
- widths16.defHeight = obj4.getInt() * 0.001;
+ }
+
+ // encoding (i.e., CMap)
+ //~ need to handle a CMap stream here
+ //~ also need to deal with the UseCMap entry in the stream dict
+ if (!fontDict->lookup("Encoding", &obj1)->isName()) {
+ error(-1, "Missing or invalid Encoding entry in Type 0 font");
+ delete collection;
+ goto err3;
+ }
+ cMapName = new GString(obj1.getName());
+ obj1.free();
+ if (!(cMap = globalParams->getCMap(collection, cMapName))) {
+ error(-1, "Unknown CMap '%s' for character collection '%s'",
+ cMapName->getCString(), collection->getCString());
+ delete collection;
+ delete cMapName;
+ goto err2;
+ }
+ delete collection;
+ delete cMapName;
+
+ // CIDToGIDMap (for embedded TrueType fonts)
+ if (type == fontCIDType2) {
+ fontDict->lookup("CIDToGIDMap", &obj1);
+ if (obj1.isStream()) {
+ cidToGIDLen = 0;
+ i = 64;
+ cidToGID = (Gushort *)gmalloc(i * sizeof(Gushort));
+ obj1.streamReset();
+ while ((c1 = obj1.streamGetChar()) != EOF &&
+ (c2 = obj1.streamGetChar()) != EOF) {
+ if (cidToGIDLen == i) {
+ i *= 2;
+ cidToGID = (Gushort *)grealloc(cidToGID, i * sizeof(Gushort));
+ }
+ cidToGID[cidToGIDLen++] = (Gushort)((c1 << 8) + c2);
+ }
+ } else if (!obj1.isName("Identity") && !obj1.isNull()) {
+ error(-1, "Invalid CIDToGIDMap entry in CID font");
}
- obj4.free();
+ obj1.free();
}
- obj3.free();
- // get char width exceptions
- widths16.exceps = NULL;
- widths16.numExceps = 0;
- obj2.dictLookup("W", &obj3);
- if (obj3.isArray()) {
+ //----- character metrics -----
+
+ // default char width
+ if (desFontDict->lookup("DW", &obj1)->isInt()) {
+ widths.defWidth = obj1.getInt() * 0.001;
+ }
+ obj1.free();
+
+ // char width exceptions
+ if (desFontDict->lookup("W", &obj1)->isArray()) {
excepsSize = 0;
- k = 0;
i = 0;
- while (i+1 < obj3.arrayGetLength()) {
- obj3.arrayGet(i, &obj4);
- obj3.arrayGet(i+1, &obj5);
- if (obj4.isInt() && obj5.isInt()) {
- obj3.arrayGet(i+2, &obj6);
- if (!obj6.isNum()) {
+ while (i + 1 < obj1.arrayGetLength()) {
+ obj1.arrayGet(i, &obj2);
+ obj1.arrayGet(i + 1, &obj3);
+ if (obj2.isInt() && obj3.isInt() && i + 2 < obj1.arrayGetLength()) {
+ if (obj1.arrayGet(i + 2, &obj4)->isNum()) {
+ if (widths.nExceps == excepsSize) {
+ excepsSize += 16;
+ widths.exceps = (GfxFontCIDWidthExcep *)
+ grealloc(widths.exceps,
+ excepsSize * sizeof(GfxFontCIDWidthExcep));
+ }
+ widths.exceps[widths.nExceps].first = obj2.getInt();
+ widths.exceps[widths.nExceps].last = obj3.getInt();
+ widths.exceps[widths.nExceps].width = obj4.getNum() * 0.001;
+ ++widths.nExceps;
+ } else {
error(-1, "Bad widths array in Type 0 font");
- obj6.free();
- obj5.free();
- obj4.free();
- break;
- }
- if (k == excepsSize) {
- excepsSize += 16;
- widths16.exceps = (GfxFontWidthExcep *)
- grealloc(widths16.exceps,
- excepsSize * sizeof(GfxFontWidthExcep));
}
- widths16.exceps[k].first = obj4.getInt();
- widths16.exceps[k].last = obj5.getInt();
- widths16.exceps[k].width = obj6.getNum() * 0.001;
- obj6.free();
- ++k;
+ obj4.free();
i += 3;
- } else if (obj4.isInt() && obj5.isArray()) {
- if (k + obj5.arrayGetLength() >= excepsSize) {
- excepsSize = (k + obj5.arrayGetLength() + 15) & ~15;
- widths16.exceps = (GfxFontWidthExcep *)
- grealloc(widths16.exceps,
- excepsSize * sizeof(GfxFontWidthExcep));
+ } else if (obj2.isInt() && obj3.isArray()) {
+ if (widths.nExceps + obj3.arrayGetLength() > excepsSize) {
+ excepsSize = (widths.nExceps + obj3.arrayGetLength() + 15) & ~15;
+ widths.exceps = (GfxFontCIDWidthExcep *)
+ grealloc(widths.exceps,
+ excepsSize * sizeof(GfxFontCIDWidthExcep));
}
- n = obj4.getInt();
- for (j = 0; j < obj5.arrayGetLength(); ++j) {
- obj5.arrayGet(j, &obj6);
- if (!obj6.isNum()) {
+ j = obj2.getInt();
+ for (k = 0; k < obj3.arrayGetLength(); ++k) {
+ if (obj3.arrayGet(k, &obj4)->isNum()) {
+ widths.exceps[widths.nExceps].first = j;
+ widths.exceps[widths.nExceps].last = j;
+ widths.exceps[widths.nExceps].width = obj4.getNum() * 0.001;
+ ++j;
+ ++widths.nExceps;
+ } else {
error(-1, "Bad widths array in Type 0 font");
- obj6.free();
- break;
}
- widths16.exceps[k].first = widths16.exceps[k].last = n++;
- widths16.exceps[k].width = obj6.getNum() * 0.001;
- obj6.free();
- ++k;
+ obj4.free();
}
i += 2;
} else {
error(-1, "Bad widths array in Type 0 font");
- obj6.free();
- obj5.free();
- obj4.free();
- break;
+ ++i;
}
- obj5.free();
- obj4.free();
+ obj3.free();
+ obj2.free();
}
- widths16.numExceps = k;
- if (k > 0)
- qsort(widths16.exceps, k, sizeof(GfxFontWidthExcep), &cmpWidthExcep);
+ qsort(widths.exceps, widths.nExceps, sizeof(GfxFontCIDWidthExcep),
+ &cmpWidthExcep);
}
- obj3.free();
+ obj1.free();
- // get char metric exceptions for vertical font
- widths16.excepsV = NULL;
- widths16.numExcepsV = 0;
- obj2.dictLookup("W2", &obj3);
- if (obj3.isArray()) {
+ // default metrics for vertical font
+ if (desFontDict->lookup("DW2", &obj1)->isArray() &&
+ obj1.arrayGetLength() == 2) {
+ if (obj1.arrayGet(0, &obj2)->isNum()) {
+ widths.defVY = obj1.getNum() * 0.001;
+ }
+ obj2.free();
+ if (obj1.arrayGet(1, &obj2)->isNum()) {
+ widths.defHeight = obj1.getNum() * 0.001;
+ }
+ obj2.free();
+ }
+ obj1.free();
+
+ // char metric exceptions for vertical font
+ if (desFontDict->lookup("W2", &obj1)->isArray()) {
excepsSize = 0;
- k = 0;
i = 0;
- while (i+1 < obj3.arrayGetLength()) {
- obj3.arrayGet(i, &obj4);
- obj3.arrayGet(i+1, &obj5);
- if (obj4.isInt() && obj5.isInt()) {
- obj3.arrayGet(i+2, &obj6);
- obj3.arrayGet(i+3, &obj7);
- obj3.arrayGet(i+4, &obj8);
- if (!obj6.isNum() || !obj7.isNum() || !obj8.isNum()) {
+ while (i + 1 < obj1.arrayGetLength()) {
+ obj1.arrayGet(0, &obj2);
+ obj2.arrayGet(0, &obj3);
+ if (obj2.isInt() && obj3.isInt() && i + 4 < obj1.arrayGetLength()) {
+ if (obj1.arrayGet(i + 2, &obj4)->isNum() &&
+ obj1.arrayGet(i + 3, &obj5)->isNum() &&
+ obj1.arrayGet(i + 4, &obj6)->isNum()) {
+ if (widths.nExcepsV == excepsSize) {
+ excepsSize += 16;
+ widths.excepsV = (GfxFontCIDWidthExcepV *)
+ grealloc(widths.excepsV,
+ excepsSize * sizeof(GfxFontCIDWidthExcepV));
+ }
+ widths.excepsV[widths.nExcepsV].first = obj2.getInt();
+ widths.excepsV[widths.nExcepsV].last = obj3.getInt();
+ widths.excepsV[widths.nExcepsV].height = obj4.getNum() * 0.001;
+ widths.excepsV[widths.nExcepsV].vx = obj5.getNum() * 0.001;
+ widths.excepsV[widths.nExcepsV].vy = obj6.getNum() * 0.001;
+ ++widths.nExcepsV;
+ } else {
error(-1, "Bad widths (W2) array in Type 0 font");
- obj8.free();
- obj7.free();
- obj6.free();
- obj5.free();
- obj4.free();
- break;
- }
- if (k == excepsSize) {
- excepsSize += 16;
- widths16.excepsV = (GfxFontWidthExcepV *)
- grealloc(widths16.excepsV,
- excepsSize * sizeof(GfxFontWidthExcepV));
}
- widths16.excepsV[k].first = obj4.getInt();
- widths16.excepsV[k].last = obj5.getInt();
- widths16.excepsV[k].height = obj6.getNum() * 0.001;
- widths16.excepsV[k].vx = obj7.getNum() * 0.001;
- widths16.excepsV[k].vy = obj8.getNum() * 0.001;
- obj8.free();
- obj7.free();
obj6.free();
- ++k;
+ obj5.free();
+ obj4.free();
i += 5;
- } else if (obj4.isInt() && obj5.isArray()) {
- if (k + obj5.arrayGetLength() / 3 >= excepsSize) {
- excepsSize = (k + obj5.arrayGetLength() / 3 + 15) & ~15;
- widths16.excepsV = (GfxFontWidthExcepV *)
- grealloc(widths16.excepsV,
- excepsSize * sizeof(GfxFontWidthExcepV));
+ } else if (obj2.isInt() && obj3.isArray()) {
+ if (widths.nExcepsV + obj3.arrayGetLength() / 3 > excepsSize) {
+ excepsSize =
+ (widths.nExcepsV + obj3.arrayGetLength() / 3 + 15) & ~15;
+ widths.excepsV = (GfxFontCIDWidthExcepV *)
+ grealloc(widths.excepsV,
+ excepsSize * sizeof(GfxFontCIDWidthExcepV));
}
- n = obj4.getInt();
- for (j = 0; j < obj5.arrayGetLength(); j += 3) {
- obj5.arrayGet(j, &obj6);
- obj5.arrayGet(j+1, &obj7);
- obj5.arrayGet(j+1, &obj8);
- if (!obj6.isNum() || !obj7.isNum() || !obj8.isNum()) {
+ j = obj2.getInt();
+ for (k = 0; k < obj3.arrayGetLength(); ++k) {
+ if (obj3.arrayGet(k, &obj4)->isNum() &&
+ obj3.arrayGet(k, &obj5)->isNum() &&
+ obj3.arrayGet(k, &obj6)->isNum()) {
+ widths.excepsV[widths.nExceps].first = j;
+ widths.excepsV[widths.nExceps].last = j;
+ widths.excepsV[widths.nExceps].height = obj4.getNum() * 0.001;
+ widths.excepsV[widths.nExceps].vx = obj5.getNum() * 0.001;
+ widths.excepsV[widths.nExceps].vy = obj6.getNum() * 0.001;
+ ++j;
+ ++widths.nExcepsV;
+ } else {
error(-1, "Bad widths (W2) array in Type 0 font");
- obj6.free();
- break;
}
- widths16.excepsV[k].first = widths16.exceps[k].last = n++;
- widths16.excepsV[k].height = obj6.getNum() * 0.001;
- widths16.excepsV[k].vx = obj7.getNum() * 0.001;
- widths16.excepsV[k].vy = obj8.getNum() * 0.001;
- obj8.free();
- obj7.free();
obj6.free();
- ++k;
+ obj5.free();
+ obj4.free();
}
i += 2;
} else {
- error(-1, "Bad widths array in Type 0 font");
- obj5.free();
- obj4.free();
- break;
+ error(-1, "Bad widths (W2) array in Type 0 font");
+ ++i;
}
- obj5.free();
- obj4.free();
- }
- widths16.numExcepsV = k;
- if (k > 0) {
- qsort(widths16.excepsV, k, sizeof(GfxFontWidthExcepV), &cmpWidthExcepV);
+ obj3.free();
+ obj2.free();
}
+ qsort(widths.excepsV, widths.nExcepsV, sizeof(GfxFontCIDWidthExcepV),
+ &cmpWidthExcepV);
}
- obj3.free();
+ obj1.free();
+ desFontDictObj.free();
+ ok = gTrue;
+ return;
+
+ err4:
+ obj3.free();
obj2.free();
+ err3:
obj1.free();
+ err2:
+ desFontDictObj.free();
+ err1:;
+}
- // get encoding (CMap)
- fontDict->lookup("Encoding", &obj1);
- if (!obj1.isName()) {
- error(-1, "Bad encoding for Type 0 font");
- goto err1;
+GfxCIDFont::~GfxCIDFont() {
+ if (cMap) {
+ cMap->decRefCnt();
}
-#if JAPANESE_SUPPORT
- if (enc16.charSet == font16AdobeJapan12) {
- for (i = 0; gfxJapan12Tab[i].name; ++i) {
- if (!strcmp(obj1.getName(), gfxJapan12Tab[i].name))
- break;
- }
- if (!gfxJapan12Tab[i].name) {
- error(-1, "Unknown encoding '%s' for Adobe-Japan1-2 font",
- obj1.getName());
- goto err1;
- }
- enc16.enc = gfxJapan12Tab[i].enc;
+ if (ctu) {
+ ctu->decRefCnt();
}
-#endif
-#if CHINESE_GB_SUPPORT
- if (enc16.charSet == font16AdobeGB12) {
- for (i = 0; gfxGB12Tab[i].name; ++i) {
- if (!strcmp(obj1.getName(), gfxGB12Tab[i].name))
- break;
- }
- if (!gfxGB12Tab[i].name) {
- error(-1, "Unknown encoding '%s' for Adobe-GB1-2 font",
- obj1.getName());
- goto err1;
- }
- enc16.enc = gfxGB12Tab[i].enc;
+ gfree(widths.exceps);
+ gfree(widths.excepsV);
+ if (cidToGID) {
+ gfree(cidToGID);
}
-#endif
-#if CHINESE_CNS_SUPPORT
- if (enc16.charSet == font16AdobeCNS13) {
- for (i = 0; gfxCNS13Tab[i].name; ++i) {
- if (!strcmp(obj1.getName(), gfxCNS13Tab[i].name))
- break;
+}
+
+int GfxCIDFont::getNextChar(char *s, int len, CharCode *code,
+ Unicode *u, int uSize, int *uLen,
+ double *dx, double *dy, double *ox, double *oy) {
+ CID cid;
+ double w, h, vx, vy;
+ int n, a, b, m;
+
+ if (!cMap) {
+ *code = 0;
+ *uLen = 0;
+ *dx = *dy = 0;
+ return 1;
+ }
+
+ *code = (CharCode)(cid = cMap->getCID(s, len, &n));
+ if (ctu) {
+ *uLen = ctu->mapToUnicode(cid, u, uSize);
+ } else {
+ *uLen = 0;
+ }
+
+ // horizontal
+ if (cMap->getWMode() == 0) {
+ w = widths.defWidth;
+ h = vx = vy = 0;
+ if (widths.nExceps > 0 && cid >= widths.exceps[0].first) {
+ a = 0;
+ b = widths.nExceps;
+ // invariant: widths.exceps[a].first <= cid < widths.exceps[b].first
+ while (b - a > 1) {
+ m = (a + b) / 2;
+ if (widths.exceps[m].first <= cid) {
+ a = m;
+ } else {
+ b = m;
+ }
+ }
+ if (cid <= widths.exceps[a].last) {
+ w = widths.exceps[a].width;
+ }
}
- if (!gfxCNS13Tab[i].name) {
- error(-1, "Unknown encoding '%s' for Adobe-CNS1-3 font",
- obj1.getName());
- goto err1;
+
+ // vertical
+ } else {
+ w = 0;
+ h = widths.defHeight;
+ vx = widths.defWidth / 2;
+ vy = widths.defVY;
+ if (widths.nExcepsV > 0 && cid >= widths.excepsV[0].first) {
+ a = 0;
+ b = widths.nExcepsV;
+ // invariant: widths.excepsV[a].first <= cid < widths.excepsV[b].first
+ while (b - a > 1) {
+ m = (a + b) / 2;
+ if (widths.excepsV[m].last <= cid) {
+ a = m;
+ } else {
+ b = m;
+ }
+ }
+ if (cid <= widths.excepsV[a].last) {
+ h = widths.excepsV[a].height;
+ vx = widths.excepsV[a].vx;
+ vy = widths.excepsV[a].vy;
+ }
}
- enc16.enc = gfxCNS13Tab[i].enc;
}
-#endif
- obj1.free();
- return;
+ *dx = w;
+ *dy = h;
+ *ox = vx;
+ *oy = vy;
- err4:
- obj5.free();
- obj4.free();
- err3:
- obj3.free();
- err2:
- obj2.free();
- err1:
- obj1.free();
- //~ fix this --> add 16-bit font support to FontFile
- encoding = new FontEncoding();
- makeWidths(fontDict, NULL, NULL, 0);
+ return n;
+}
+
+int GfxCIDFont::getWMode() {
+ return cMap ? cMap->getWMode() : 0;
}
-static int CDECL cmpWidthExcep(const void *w1, const void *w2) {
- return ((GfxFontWidthExcep *)w1)->first - ((GfxFontWidthExcep *)w2)->first;
+CharCodeToUnicode *GfxCIDFont::getToUnicode() {
+ ctu->incRefCnt();
+ return ctu;
}
-static int CDECL cmpWidthExcepV(const void *w1, const void *w2) {
- return ((GfxFontWidthExcepV *)w1)->first - ((GfxFontWidthExcepV *)w2)->first;
+GString *GfxCIDFont::getCollection() {
+ return cMap ? cMap->getCollection() : (GString *)NULL;
}
//------------------------------------------------------------------------
// GfxFontDict
//------------------------------------------------------------------------
-GfxFontDict::GfxFontDict(Dict *fontDict) {
+GfxFontDict::GfxFontDict(XRef *xref, Dict *fontDict) {
int i;
Object obj1, obj2;
fonts = (GfxFont **)gmalloc(numFonts * sizeof(GfxFont *));
for (i = 0; i < numFonts; ++i) {
fontDict->getValNF(i, &obj1);
- obj1.fetch(&obj2);
+ obj1.fetch(xref, &obj2);
if (obj1.isRef() && obj2.isDict()) {
- fonts[i] = new GfxFont(fontDict->getKey(i), obj1.getRef(),
- obj2.getDict());
+ fonts[i] = GfxFont::makeFont(xref, fontDict->getKey(i),
+ obj1.getRef(), obj2.getDict());
+ if (fonts[i] && !fonts[i]->isOk()) {
+ delete fonts[i];
+ fonts[i] = NULL;
+ }
} else {
- error(-1, "font resource is not a dictionary");
+ error(-1, "font resource is not a dictionary reference");
fonts[i] = NULL;
}
obj1.free();
GfxFontDict::~GfxFontDict() {
int i;
- for (i = 0; i < numFonts; ++i)
- delete fonts[i];
+ for (i = 0; i < numFonts; ++i) {
+ if (fonts[i]) {
+ delete fonts[i];
+ }
+ }
gfree(fonts);
}
int i;
for (i = 0; i < numFonts; ++i) {
- if (fonts[i]->matches(tag))
+ if (fonts[i] && fonts[i]->matches(tag)) {
return fonts[i];
+ }
}
return NULL;
}
git.asbjorn.biz / swftools.git / blobdiff