1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
|
/* Portions Copyright (C) 2001 artofcode LLC.
Portions Copyright (C) 1996, 2001 Artifex Software Inc.
Portions Copyright (C) 1988, 2000 Aladdin Enterprises.
This software is based in part on the work of the Independent JPEG Group.
All Rights Reserved.
This software is distributed under license and may not be copied, modified
or distributed except as expressly authorized under the terms of that
license. Refer to licensing information at http://www.artifex.com/ or
contact Artifex Software, Inc., 101 Lucas Valley Road #110,
San Rafael, CA 94903, (415)492-9861, for further information. */
/*$Id$ */
/* pcfont.h - Definitions for PCL5 fonts */
#ifndef pcfont_INCLUDED
#define pcfont_INCLUDED
#include "pcstate.h"
#include "plfont.h"
/*
* Clear the font pointer cache. Some non-font operations--removing a
* downloaded symbol set, or changing orientations--can cause this.
* set == -1 means all.
*/
void pcl_decache_font(pcl_state_t * pcs, int set);
/*
* Recompute the font if necessary.
*/
int pcl_recompute_font(pcl_state_t * pcs, bool internal_only);
/*
* Do any underlining just before a break in motion (vertical motion or
* negative horizontal motion)...
*/
#define pcl_break_underline(pcs) \
BEGIN \
if (pcs->underline_enabled) \
pcl_do_underline(pcs); \
END
/* ...and then, after repositioning, restart underlining if necessary... */
#define pcl_continue_underline(pcs) \
BEGIN \
if (pcs->underline_enabled) \
pcs->underline_start = pcs->cap; \
END
void pcl_do_underline(pcl_state_t *pcs);
/* Define the common structure of downloaded font headers. */
typedef struct pcl_font_header_s {
byte FontDescriptorSize[2]; /* must be >=64 */
byte HeaderFormat;
byte FontType;
byte StyleMSB;
byte Reserved; /* must be 0 */
byte BaselinePosition[2];
byte CellWidth[2];
byte CellHeight[2];
byte Orientation;
byte Spacing;
byte SymbolSet[2];
byte Pitch[2];
byte Height[2];
byte xHeight[2];
byte WidthType;
byte StyleLSB;
byte StrokeWeight;
byte TypefaceLSB;
byte TypefaceMSB;
byte SerifStyle;
byte Quality;
byte Placement;
byte UnderlinePosition;
byte UnderlineThickness;
byte TextHeight[2];
byte TextWidth[2];
byte FirstCode[2];
byte LastCode[2];
byte PitchExtended;
byte HeightExtended;
byte CapHeight[2];
byte FontNumber[4];
char FontName[16];
} pcl_font_header_t;
/* Define the downloaded font header formats. */
typedef enum {
pcfh_bitmap = 0,
pcfh_resolution_bitmap = 20,
pcfh_intellifont_bound = 10,
pcfh_intellifont_unbound = 11,
pcfh_truetype = 15,
pcfh_truetype_large = 16
} pcl_font_header_format_t;
/* Define the extended of resolution-specified bitmap font header (type 20). */
typedef struct pcl_resolution_bitmap_header_s {
pcl_font_header_t common;
byte XResolution[2];
byte YResolution[2];
char Copyright[1];
} pcl_resolution_bitmap_header_t;
/* set the default font environment based on setting from the pjl
interpreter */
int pcl_set_current_font_environment(pcl_state_t *pcs);
/* debugging to to print font parameters */
#ifdef DEBUG
void dprint_font_params_t(const pl_font_params_t *pfp);
#else
#define dprint_font_params_t(p) DO_NOTHING
#endif /* DEBUG */
#endif /* pcfont_INCLUDED */
|
