blob: 436650332ee6e2fb6f376cd3b636d3e23ae6a28f (
plain)
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
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
|
.\" pspic.tmac
.\"
.\" Define the PSPIC macro.
.\"
.\" When used other than with -Tps, -Tdvi, -Thtml, or -Txhtml it draws a box
.\" around where the picture would go.
.\"
.\" Usage:
.\"
.\" .PSPIC [-L|-R|-C|-I <indent>] <file> [<width> [<height>]]
.
.do if d PSPIC .nx
.
.nr _C \n(.C
.cp 0
.
.de PSPIC
. nr ps-offset-mode 0
. \" left-aligned?
. ie '\\$1'-L' \{\
. nr ps-offset-mode 1
. shift
. HTML-DO-IMAGE \\$1 l
. \}
. el \{\
. \" right-aligned?
. ie '\\$1'-R' \{\
. nr ps-offset-mode 2
. shift
. HTML-DO-IMAGE \\$1 r
. \}
. el \{\
. \" indented?
. ie '\\$1'-I' \{\
. nr ps-offset-mode 3
. nr ps-offset (m;\\$2)
. shift 2
. HTML-DO-IMAGE \\$1 i
. \}
. el \{\
. \" centered is the default
. if '\\$1'-C' \
. shift
. HTML-DO-IMAGE \\$1 c
. \}
. \}
. \}
.
. br
.
. \" get bounding box
. psbb \\$1
. if (\\n[llx] : \\n[lly] : \\n[urx] : \\n[ury]) \{\
. nr ps-wid (\\n[urx] - \\n[llx])
. nr ps-ht (\\n[ury] - \\n[lly])
. if (\\n[ps-wid] < 0) \
. nr ps-wid (-\\n[ps-wid])
. if (\\n[ps-ht] < 0) \
. nr ps-ht (-\\n[ps-ht])
.
. \" if we have a <width> parameter, use it as the final
. \" image width; otherwise we use the image's natural width
. \" or the current line length, whatever is smaller
. ie (\\n[.$] >= 2) \
. nr ps-deswid (i;\\$2)
. el \
. nr ps-deswid ((\\n[.l] - \\n[.i]) <? \\n[ps-wid]p)
.
. \" compute the final image height (with proper rounding),
. \" based on the image's aspect
. nr ps-desht (\\n[ps-deswid] * 1000 + (\\n[ps-wid] / 2) \
/ \\n[ps-wid] * \\n[ps-ht] \
+ 500 / 1000)
.
. \" if we have a <height> parameter, use it as the final
. \" image height in case it is smaller than the height
. \" value we have just computed
. if ((\\n[.$] >= 3) & (\\n[ps-desht] > (i;0\\$3))) \{\
. nr ps-desht (i;\\$3)
. \" recompute the final image width since we always
. \" keep the correct image aspect
. nr ps-deswid (\\n[ps-desht] * 1000 + (\\n[ps-ht] / 2) \
/ \\n[ps-ht] * \\n[ps-wid] \
+ 500 / 1000)
. \}
.
. \" reserve vertical space for image
. ne (\\n[ps-desht]u + 1v)
.
. \" compute image offset w.r.t. the current left margin
. if (\\n[ps-offset-mode] == 0) \
. nr ps-offset (\\n[.l] - \\n[.i] - \\n[ps-deswid] / 2)
. if (\\n[ps-offset-mode] == 1) \
. nr ps-offset 0
. if (\\n[ps-offset-mode] == 2) \
. nr ps-offset (\\n[.l] - \\n[.i] - \\n[ps-deswid])
.
. ie '\*[.T]'dvi' \{\
. \" prepare values for \special{psfile=...} as needed by dvips
. ie (\\n[ps-wid]p == \\n[ps-deswid]) \{\
. ds ps-scale \" empty
. ds ps-hoffset hoffset=-\\n[llx]
. ds ps-voffset voffset=-\\n[lly]
. \}
. el \{\
. nr ps-scale (\\n[ps-deswid] * 100 / \\n[ps-wid]p)
. nr ps-hoffset (-\\n[llx] * \\n[ps-scale] / 100)
. nr ps-voffset (-\\n[lly] * \\n[ps-scale] / 100)
. ds ps-scale hscale=\\n[ps-scale] vscale=\\n[ps-scale]
. ds ps-hoffset hoffset=\\n[ps-hoffset]
. ds ps-voffset voffset=\\n[ps-voffset]
. \}
.
\h'\\n[ps-offset]u'\
\v'\\n[ps-desht]u'\
\X'psfile=\\$1 \\*[ps-hoffset] \\*[ps-voffset] \\*[ps-scale]'
. \}
. el \{\
. ie '\*[.T]'ps' \{\
. \" prepare values for grops; the `ps-invis' and `ps-endinvis' escapes
. \" are for groff's -X switch to provide a PS preview with xditview:
. \" it uses -Tps for formatting but xditview can't handle EPS files,
. \" thus alternative code is enclosed between those two escapes
. ds ps-invis \X'ps: invis'
. ds ps-endinvis \X'ps: endinvis'
. ds ps-import \X'ps: import \E$1 \En[llx] \En[lly] \En[urx] \En[ury] \
\En[ps-deswid] \E*[ps-desht]'
. \}
. el \{\
. ds ps-invis
. ds ps-endinvis
. ds ps-import
. \}
.
. ie (\\n[.$] >= 3) \
. ds ps-desht \\n[ps-desht]
. el \
. ds ps-desht \" empty
.
\h'\\n[ps-offset]u'\
\\*[ps-invis]\
\# horizontally, the rectangle is slightly smaller than the image
\# to compensate the line thickness (especially needed for TTY devices)
\Z'\D'p 0 \\n[ps-desht]u \
(\\n[ps-deswid]u - \\n[.H]u) 0 \
0 -\\n[ps-desht]u''\
\# for convenience we also display the image file name (centered vertically);
\Z'\v'((\\n[ps-desht]u / 2u) \
+ (\w'\\$1'u * 0) \
+ ((\\n[rst]u + \\n[rsb]u) / 2u))'\h'1m'\\$1'\
\\*[ps-endinvis]\
\v'\\n[ps-desht]u'\
\\*[ps-import]
. \}
.
. br
. sp \\n[ps-desht]u
. \}
. HTML-IMAGE-END
..
.
.cp \n[_C]
.
.\" end of pspic.tmac
|
