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
|
#include "sp-metrics.h"
#include "unit-constants.h"
/*
* SPMetric handling and stuff
* I hope this will be usefull :-)
*/
gdouble
sp_absolute_metric_to_metric (gdouble length_src, const SPMetric metric_src, const SPMetric metric_dst)
{
gdouble src = 1;
gdouble dst = 1;
switch (metric_src) {
case SP_M:
src = M_PER_IN;
break;
case SP_MM:
src = MM_PER_IN;
break;
case SP_CM:
src = CM_PER_IN;
break;
case SP_IN:
src = IN_PER_IN;
break;
case SP_FT:
src = FT_PER_IN;
break;
case SP_PT:
src = PT_PER_IN;
break;
case SP_PC:
src = PC_PER_IN;
break;
case SP_PX:
src = PX_PER_IN;
break;
case NONE:
src = 1;
break;
}
switch (metric_dst) {
case SP_M:
dst = M_PER_IN;
break;
case SP_MM:
dst = MM_PER_IN;
break;
case SP_CM:
dst = CM_PER_IN;
break;
case SP_IN:
dst = IN_PER_IN;
break;
case SP_FT:
dst = FT_PER_IN;
break;
case SP_PT:
dst = PT_PER_IN;
break;
case SP_PC:
dst = PC_PER_IN;
break;
case SP_PX:
dst = PX_PER_IN;
break;
case NONE:
dst = 1;
break;
}
return length_src * (dst/src);
}
/**
* Create a human-readable string suitable for status-bar display.
*/
GString *
sp_metric_to_metric_string(gdouble const length,
SPMetric const metric_src, SPMetric const metric_dst,
gboolean const m)
{
gdouble const len = sp_absolute_metric_to_metric(length, metric_src, metric_dst);
GString *str = g_string_new("");
g_string_printf(str, "%0.02f", len);
/* We need a fixed number of fractional digits, because otherwise the live statusbar display of
* lengths will be too jerky */
if (m) {
char const *unit_str;
switch (metric_dst) {
case SP_M: unit_str = " m"; break;
case SP_MM: unit_str = " mm"; break;
case SP_CM: unit_str = " cm"; break;
case SP_IN: unit_str = "\""; break;
case SP_PT: unit_str = " pt"; break;
case SP_PX: unit_str = " px"; break;
default: unit_str = NULL; break;
}
if (unit_str) {
g_string_append(str, unit_str);
}
}
return str;
}
/*
Local Variables:
mode:c++
c-file-style:"stroustrup"
c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
indent-tabs-mode:nil
fill-column:99
End:
*/
// vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:fileencoding=utf-8:textwidth=99 :
|