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Atari Mega Archive 1
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vdit.arc
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gfont.h
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1988-07-12
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/*
* Internal representation of GDOS font. Author unknown.
*/
typedef struct {
short font_id; /* Font face identifier, 1 -> system font */
short size; /* Font size in points */
char name[32]; /* Font name */
short first_ade; /* Lowest ADE value in the face */
short last_ade; /* Highest ADE value in the face */
short top; /* Distance of top line relative to baseline */
short ascent; /* Distance of ascent line relative to baseline */
short half; /* Distance of half line relative to baseline */
short descent; /* Distance of decent line relative to baseline */
short bottom; /* Distance of bottom line relative to baseline */
/* All distances are measured in absolute values */
/* rather than as offsets. They are always +ve */
short max_char_width; /* Width of the widest character in font */
short max_cell_width; /* Width of the widest cell character cell in face */
short loffset; /* Left Offset see Vdi appendix G */
short roffset; /* Right offset " " " */
short thicken; /* Number of pixels by which to thicken characters */
short ul_size; /* Width in pixels of the underline */
short lighten; /* The mask used to lighten characters */
short skew; /* The mask used to determine when to perform */
/* additional rotation on the character to perform skewing */
short flags; /* Flags */
/* $01 default system font */
/* 02 horiz offset table should be used */
/* 04 byte-swap flag (thanks to Motorla idiots) */
/* 08 mono spaced font */
short * hoff_base; /* Offset to horizontal offset table */
short * coff_base; /* Offset to character offset table */
/* font bitmap is byte[width][height], width must be even */
short * form_base; /* Offset to font data */
short form_width; /* Form width (#of bytes/scanline in font data) */
short form_height; /* Form height (#of scanlines in font data) */
char * next_font; /* Pointer to next font in face */
} GFont;