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
|
#include <Xw_Extension.h>
/* ifdef then trace on */
#ifdef TRACE
#define TRACE_GET_WIDTH_INDEX
#endif
/*
XW_STATUS Xw_get_width_index(awidthmap,width,index):
XW_EXT_WIDTHMAP *awidthmap Widthmap extension structure
float width ; Line Width in MM
int *index ; Return Width index 0 >= x < MAXWIDTH
Gets the nearest width index from width.
Returns XW_ERROR if BadWidth Index or width is not defined
Returns XW_SUCCESS if Successful
*/
#ifdef XW_PROTOTYPE
XW_STATUS Xw_get_width_index(void *awidthmap,float width,int *index)
#else
XW_STATUS Xw_get_width_index(awidthmap,width,index)
void *awidthmap ;
float width ;
int *index ;
#endif /*XW_PROTOTYPE*/
{
XW_EXT_WIDTHMAP *pwidthmap = (XW_EXT_WIDTHMAP*)awidthmap ;
XW_STATUS status = XW_ERROR ;
Screen *screen ;
int i,j,k,pwidth ;
if( !pwidthmap ) {
/*ERROR*Bad EXT_WIDTHMAP Address*/
Xw_set_error( 53,"Xw_get_width_index",pwidthmap ) ;
return( XW_ERROR ) ;
}
screen = ScreenOfDisplay(_WDISPLAY,DefaultScreen(_WDISPLAY)) ;
pwidth = (int) (0.5 + width * (float)HeightOfScreen(screen)/
(float)HeightMMOfScreen(screen)) ;
pwidth = (pwidth) ? pwidth : 1 ;
for( i=j=k=0 ; i<pwidthmap->maxwidth ; i++ ) {
if( pwidthmap->widths[i] ) {
if( pwidth == pwidthmap->widths[i] ) break;
else if( abs(pwidth - pwidthmap->widths[i]) <
abs(pwidth - pwidthmap->widths[k]) ) k = i;
} else if( !j ) j = i ;
}
if( i<pwidthmap->maxwidth ) {
*index = i ;
status = XW_SUCCESS ;
} else if( j > 0 ) {
*index = j ;
status = Xw_def_width (pwidthmap,j,width) ;
} else {
*index = k ;
status = XW_SUCCESS ;
}
#ifdef TRACE_GET_WIDTH_INDEX
if( Xw_get_trace() > 1 ) {
printf(" %d = Xw_get_width_index(%lx,%f,%d) is %d\n",
status,(long ) pwidthmap,width,*index,pwidthmap->widths[*index]) ;
}
#endif
return( status ) ;
}
|
