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104 lines
3.2 KiB
104 lines
3.2 KiB
/* |
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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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#ifndef _FONT_H |
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#define _FONT_H |
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class dviWindow; |
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typedef void (dviWindow::*set_char_proc)(unsigned int, unsigned int); |
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#include <kprocess.h> |
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#include <qintdict.h> |
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#include <qstring.h> |
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#include <stdio.h> |
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//#include "dviwin.h" |
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#include "glyph.h" |
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class TeXFont; |
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// Per character information for virtual fonts |
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class macro { |
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public: |
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macro(void); |
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~macro(void); |
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unsigned char *pos; /* address of first byte of macro */ |
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unsigned char *end; /* address of last+1 byte */ |
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Q_INT32 dvi_advance_in_units_of_design_size_by_2e20; /* DVI units to move reference point */ |
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bool free_me; // if memory at pos should be returned on destruction |
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}; |
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class TeXFontDefinition { |
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public: |
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// Currently, kdvi supports fonts with at most 256 characters to |
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// comply with "The DVI Driver Standard, Level 0". If you change |
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// this value here, make sure to go through all the source and |
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// ensure that character numbers are stored in ints rather than |
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// unsigned chars. |
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static const unsigned int max_num_of_chars_in_font = 256; |
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enum font_flags { |
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FONT_IN_USE = 1, // used for housekeeping |
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FONT_LOADED = 2, // if font file has been read |
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FONT_VIRTUAL = 4, // if font is virtual |
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FONT_KPSE_NAME = 8 // if kpathsea has already tried to find the font name |
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}; |
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TeXFontDefinition(QString nfontname, double _displayResolution_in_dpi, Q_UINT32 chk, Q_INT32 _scaled_size_in_DVI_units, |
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class fontPool *pool, double _enlargement); |
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~TeXFontDefinition(); |
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void reset(void); |
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void fontNameReceiver(QString); |
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// Members for character fonts |
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void setDisplayResolution(double _displayResolution_in_dpi); |
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void mark_as_used(void); |
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class fontPool *font_pool; // Pointer to the pool that contains this font. |
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QString fontname; // name of font, such as "cmr10" |
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unsigned char flags; // flags byte (see values below) |
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double enlargement; |
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Q_INT32 scaled_size_in_DVI_units; // Scaled size from the font definition command; in DVI units |
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set_char_proc set_char_p; // proc used to set char |
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// Resolution of the display device (resolution will usually be |
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// scaled, according to the zoom) |
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double displayResolution_in_dpi; |
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FILE *file; // open font file or NULL |
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QString filename; // name of font file |
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TeXFont *font; |
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macro *macrotable; // used by (loaded) virtual fonts |
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QIntDict<TeXFontDefinition> vf_table; // used by (loaded) virtual fonts, list of fonts used by this vf, |
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// acessible by number |
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TeXFontDefinition *first_font; // used by (loaded) virtual fonts, list of fonts used by this vf |
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private: |
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Q_UINT32 checksum; |
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// Functions related to virtual fonts |
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void read_VF_index(void ); |
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}; |
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#endif
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