From bace4ea18c03bfcaadab55300bc15290f87540c7 Mon Sep 17 00:00:00 2001
From: Martin Kretzschmar <mkretzschmar@src.gnome.org>
Date: Mon, 17 May 2004 18:12:38 +0000
Subject: Initial revision

---
(limited to 'pdf/fofi/FoFiTrueType.h')

diff --git a/pdf/fofi/FoFiTrueType.h b/pdf/fofi/FoFiTrueType.h
new file mode 100644
index 0000000..ea05eec
--- /dev/null
+++ b/pdf/fofi/FoFiTrueType.h
@@ -0,0 +1,133 @@
+//========================================================================
+//
+// FoFiTrueType.h
+//
+// Copyright 1999-2003 Glyph & Cog, LLC
+//
+//========================================================================
+
+#ifndef FOFITRUETYPE_H
+#define FOFITRUETYPE_H
+
+#include <aconf.h>
+
+#ifdef USE_GCC_PRAGMAS
+#pragma interface
+#endif
+
+#include "gtypes.h"
+#include "FoFiBase.h"
+
+class GHash;
+struct TrueTypeTable;
+struct TrueTypeCmap;
+
+//------------------------------------------------------------------------
+// FoFiTrueType
+//------------------------------------------------------------------------
+
+class FoFiTrueType: public FoFiBase {
+public:
+
+  // Create a FoFiTrueType object from a memory buffer.
+  static FoFiTrueType *make(char *fileA, int lenA);
+
+  // Create a FoFiTrueType object from a file on disk.
+  static FoFiTrueType *load(char *fileName);
+
+  virtual ~FoFiTrueType();
+
+  // Return the number of cmaps defined by this font.
+  int getNumCmaps();
+
+  // Return the platform ID of the <i>th cmap.
+  int getCmapPlatform(int i);
+
+  // Return the encoding ID of the <i>th cmap.
+  int getCmapEncoding(int i);
+
+  // Return the index of the cmap for <platform>, <encoding>.  Returns
+  // -1 if there is no corresponding cmap.
+  int findCmap(int platform, int encoding);
+
+  // Return the GID corresponding to <c> according to the <i>th cmap.
+  Gushort mapCodeToGID(int i, int c);
+
+  // Returns the GID corresponding to <name> according to the post
+  // table.  Returns 0 if there is no mapping for <name> or if the
+  // font does not have a post table.
+  int mapNameToGID(char *name);
+
+  // Returns the least restrictive embedding licensing right (as
+  // defined by the TrueType spec):
+  // * 4: OS/2 table is missing or invalid
+  // * 3: installable embedding
+  // * 2: editable embedding
+  // * 1: preview & print embedding
+  // * 0: restricted license embedding
+  int getEmbeddingRights();
+
+  // Convert to a Type 42 font, suitable for embedding in a PostScript
+  // file.  <psName> will be used as the PostScript font name (so we
+  // don't need to depend on the 'name' table in the font).  The
+  // <encoding> array specifies the mapping from char codes to names.
+  // If <encoding> is NULL, the encoding is unknown or undefined.  The
+  // <codeToGID> array specifies the mapping from char codes to GIDs.
+  void convertToType42(char *psName, char **encoding,
+		       Gushort *codeToGID,
+		       FoFiOutputFunc outputFunc, void *outputStream);
+
+  // Convert to a Type 2 CIDFont, suitable for embedding in a
+  // PostScript file.  <psName> will be used as the PostScript font
+  // name (so we don't need to depend on the 'name' table in the
+  // font).  The <cidMap> array maps CIDs to GIDs; it has <nCIDs>
+  // entries.
+  void convertToCIDType2(char *psName, Gushort *cidMap, int nCIDs,
+			 FoFiOutputFunc outputFunc, void *outputStream);
+
+  // Convert to a Type 0 (but non-CID) composite font, suitable for
+  // embedding in a PostScript file.  <psName> will be used as the
+  // PostScript font name (so we don't need to depend on the 'name'
+  // table in the font).  The <cidMap> array maps CIDs to GIDs; it has
+  // <nCIDs> entries.
+  void convertToType0(char *psName, Gushort *cidMap, int nCIDs,
+		      FoFiOutputFunc outputFunc, void *outputStream);
+
+  // Write a clean TTF file, filling in missing tables and correcting
+  // various other errors.  If the font is complete and correct, it
+  // will be written unmodified.
+  void writeTTF(FoFiOutputFunc outputFunc, void *outputStream);
+
+private:
+
+  FoFiTrueType(char *fileA, int lenA, GBool freeFileDataA);
+  void cvtEncoding(char **encoding,
+		   FoFiOutputFunc outputFunc,
+		   void *outputStream);
+  void cvtCharStrings(char **encoding,
+		      Gushort *codeToGID,
+		      FoFiOutputFunc outputFunc,
+		      void *outputStream);
+  void cvtSfnts(FoFiOutputFunc outputFunc,
+		void *outputStream, GString *name);
+  void dumpString(Guchar *s, int length,
+		  FoFiOutputFunc outputFunc,
+		  void *outputStream);
+  Guint computeTableChecksum(Guchar *data, int length);
+  void parse();
+  void readPostTable();
+  int seekTable(char *tag);
+
+  TrueTypeTable *tables;
+  int nTables;
+  TrueTypeCmap *cmaps;
+  int nCmaps;
+  int nGlyphs;
+  int locaFmt;
+  int bbox[4];
+  GHash *nameToGID;
+
+  GBool parsedOk;
+};
+
+#endif
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