mirror of
https://invent.kde.org/graphics/okular
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44 lines
1.7 KiB
C
44 lines
1.7 KiB
C
/*
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* The layout of a font information block.
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* There is one of these for every loaded font or magnification thereof.
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* Duplicates are eliminated: this is necessary because of possible recursion
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* in virtual fonts.
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*
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* Also note the strange units. The design size is in 1/2^20 point
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* units (also called micro-points), and the individual character widths
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* are in the TFM file in 1/2^20 ems units, i.e., relative to the design size.
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*
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* We then change the sizes to SPELL units (unshrunk pixel / 2^16).
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*/
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#include <stdio.h>
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#define NOMAGSTP (-29999)
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typedef void (*read_char_proc)(register struct font *, unsigned int);
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struct font {
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struct font *next; /* link to next font info block */
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char *fontname; /* name of font */
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float fsize; /* size information (dots per inch) */
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int magstepval; /* magstep number * two, or NOMAGSTP */
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FILE *file; /* open font file or NULL */
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char *filename; /* name of font file */
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long checksum; /* checksum */
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unsigned short timestamp; /* for LRU management of fonts */
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unsigned char flags; /* flags byte (see values below) */
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unsigned char maxchar; /* largest character code */
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double dimconv; /* size conversion factor */
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set_char_proc set_char_p; /* proc used to set char */
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/* these fields are used by (loaded) raster fonts */
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read_char_proc read_char; /* function to read bitmap */
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struct glyph *glyph;
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/* these fields are used by (loaded) virtual fonts */
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struct font **vf_table; /* list of fonts used by this vf */
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struct tn *vf_chain; /* ditto, if TeXnumber >= VFTABLELEN */
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struct font *first_font; /* first font defined */
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struct macro *macro;
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/* I suppose the above could be put into a union, but we */
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/* wouldn't save all that much space. */
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};
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