1 #ifndef SEEN_LIBNR_N_ART_BPATH_H
2 #define SEEN_LIBNR_N_ART_BPATH_H
4 /** \file
5 * NArtBpath: old-style path segment.
6 */
8 #include "libnr/nr-point.h"
9 #include "libnr/nr-path-code.h"
11 /**
12 * Old-style path segment.
13 *
14 * Arrays of paths segment start with a MOVETO or MOVETO_OPEN segment
15 * where the former indicates the beginning of a closed subpath.
16 * \see subpath_from_bpath()
17 */
18 class NArtBpath {
19 public:
20 NRPathcode code; ///< Type of segment
21 double x1, y1; ///< Position of control point in case of NR_CURVETO
22 double x2, y2; ///< Position of control point in case of NR_CURVETO
23 double x3, y3; ///< Position of next point
25 /// Convert i-th position data pair to Point object
26 /// \pre 1 <= i <= 3
27 NR::Point c(unsigned const i) const {
28 switch (i) {
29 case 1: return NR::Point(x1, y1);
30 case 2: return NR::Point(x2, y2);
31 case 3: return NR::Point(x3, y3);
32 default: abort();
33 }
34 }
36 /// Set i-th position data pair from Point
37 /// \pre 1 <= i <= 3
38 void setC(unsigned const i, NR::Point const &p) {
39 using NR::X; using NR::Y;
40 switch (i) {
41 case 1: x1 = p[X]; y1 = p[Y]; break;
42 case 2: x2 = p[X]; y2 = p[Y]; break;
43 case 3: x3 = p[X]; y3 = p[Y]; break;
44 default: abort();
45 }
46 }
47 };
50 #endif /* !SEEN_LIBNR_N_ART_BPATH_H */
52 /*
53 Local Variables:
54 mode:c++
55 c-file-style:"stroustrup"
56 c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
57 indent-tabs-mode:nil
58 fill-column:99
59 End:
60 */
61 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4 :