1 files changed, 126 insertions, 0 deletions
diff --git a/kdvi/TeXFontDefinition.h b/kdvi/TeXFontDefinition.h
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+++ b/kdvi/TeXFontDefinition.h
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+// -*- C++ -*-
+/*
+ * The layout of a font information block.
+ * There is one of these for every loaded font or magnification thereof.
+ * Duplicates are eliminated:  this is necessary because of possible recursion
+ * in virtual fonts.
+ *
+ * Also note the strange units.  The design size is in 1/2^20 point
+ * units (also called micro-points), and the individual character widths
+ * are in the TFM file in 1/2^20 ems units, i.e., relative to the design size.
+ *
+ * We then change the sizes to SPELL units (unshrunk pixel / 2^16).
+ */
+
+#ifndef _FONT_H
+#define _FONT_H
+
+#include <qintdict.h>
+#include <qstring.h>
+
+#include <stdio.h>
+
+class dviRenderer;
+class TeXFont;
+
+typedef void (dviRenderer::*set_char_proc)(unsigned int, unsigned int);
+
+
+// Per character information for virtual fonts
+
+class macro {
+ public:
+  macro();
+  ~macro();
+
+  unsigned char	*pos;		/* address of first byte of macro */
+  unsigned char	*end;		/* address of last+1 byte */
+  Q_INT32        dvi_advance_in_units_of_design_size_by_2e20;	/* DVI units to move reference point */
+  bool          free_me;        // if memory at pos should be returned on destruction
+};
+
+
+class TeXFontDefinition {
+ public:
+  // Currently, kdvi supports fonts with at most 256 characters to
+  // comply with "The DVI Driver Standard, Level 0". If you change
+  // this value here, make sure to go through all the source and
+  // ensure that character numbers are stored in ints rather than
+  // unsigned chars.
+  static const unsigned int max_num_of_chars_in_font = 256;
+  enum font_flags {
+    FONT_IN_USE  = 1,	// used for housekeeping
+    FONT_LOADED  = 2,	// if font file has been read
+    FONT_VIRTUAL = 4,	// if font is virtual 
+    FONT_KPSE_NAME = 8 // if kpathsea has already tried to find the font name
+  };
+  
+
+  TeXFontDefinition(QString nfontname, double _displayResolution_in_dpi, Q_UINT32 chk, Q_INT32 _scaled_size_in_DVI_units,
+       class fontPool *pool, double _enlargement);
+  ~TeXFontDefinition();
+
+  void reset();
+  void fontNameReceiver(const QString&);
+
+  // Members for character fonts
+  void           setDisplayResolution(double _displayResolution_in_dpi);
+
+  bool           isLocated() const {return ((flags & FONT_KPSE_NAME) != 0);}
+  void           markAsLocated() {flags |= FONT_KPSE_NAME;}
+
+  void           mark_as_used();
+  class fontPool *font_pool;    // Pointer to the pool that contains this font.
+  QString        fontname;	// name of font, such as "cmr10"
+  unsigned char  flags;		// flags byte (see values below)
+  double         enlargement;
+  Q_INT32        scaled_size_in_DVI_units;   // Scaled size from the font definition command; in DVI units
+  set_char_proc  set_char_p;	// proc used to set char
+  
+  // Resolution of the display device (resolution will usually be
+  // scaled, according to the zoom)
+  double         displayResolution_in_dpi;
+  
+  FILE          *file;		// open font file or NULL
+  QString        filename;	// name of font file
+  
+  TeXFont       *font;
+  macro         *macrotable;    // used by (loaded) virtual fonts
+  QIntDict<TeXFontDefinition> vf_table;      // used by (loaded) virtual fonts, list of fonts used by this vf, 
+  // acessible by number
+  TeXFontDefinition  *first_font;	// used by (loaded) virtual fonts, list of fonts used by this vf
+
+#ifdef HAVE_FREETYPE
+  const QString &getFullFontName() const {return fullFontName;}
+  const QString &getFullEncodingName() const {return fullEncodingName;}
+#endif
+  const QString &getFontTypeName() const {return fontTypeName;}
+
+#ifdef HAVE_FREETYPE
+  /** For FREETYPE fonts, which use a map file, this field will
+      contain the full name of the font (e.g. 'Computer Modern'). If
+      the name does not exist, or cannot be found, this field will be
+      QString::null. Only subclasses of TeXFont should write into this
+      field. */
+  QString        fullFontName;
+
+  /** For FREETYPE fonts, which use a map file, this field will
+      contain the full name of the font encoding (e.g. 'TexBase1'). If
+      the encoding name does not exist, or cannot be found, this field
+      will be QString::null. Only subclasses of TeXFont should write
+      into this field. */
+  QString        fullEncodingName;
+#endif
+
+ private:
+  Q_UINT32       checksum;
+
+  /** This will be set to a human-readable description of the font,
+      e.g. "virtual" or "TeX PK", or "Type 1" */
+  QString        fontTypeName;
+  
+  // Functions related to virtual fonts
+  void          read_VF_index(void );
+};
+
+#endif