1 #define INKSCAPE_LPE_LINE_SEGMENT_CPP
3 /** \file
4 * LPE <line_segment> implementation
5 */
7 /*
8 * Authors:
9 * Maximilian Albert
10 *
11 * Copyright (C) Maximilian Albert 2008 <maximilian.albert@gmail.com>
12 *
13 * Released under GNU GPL, read the file 'COPYING' for more information
14 */
16 #include "live_effects/lpe-line_segment.h"
17 #include "lpe-tool-context.h"
19 #include <2geom/pathvector.h>
20 #include <2geom/geom.h>
21 #include <2geom/bezier-curve.h>
23 namespace Inkscape {
24 namespace LivePathEffect {
26 static const Util::EnumData<EndType> EndTypeData[] = {
27 {END_CLOSED , N_("Closed"), "closed"},
28 {END_OPEN_INITIAL , N_("Open start"), "open_start"},
29 {END_OPEN_FINAL , N_("Open end"), "open_end"},
30 {END_OPEN_BOTH , N_("Open both"), "open_both"},
31 };
32 static const Util::EnumDataConverter<EndType> EndTypeConverter(EndTypeData, sizeof(EndTypeData)/sizeof(*EndTypeData));
34 LPELineSegment::LPELineSegment(LivePathEffectObject *lpeobject) :
35 Effect(lpeobject),
36 end_type(_("End type"), _("Determines on which side the line or line segment is infinite."), "end_type", EndTypeConverter, &wr, this, END_OPEN_BOTH)
37 {
38 /* register all your parameters here, so Inkscape knows which parameters this effect has: */
39 registerParameter( dynamic_cast<Parameter *>(&end_type) );
40 }
42 LPELineSegment::~LPELineSegment()
43 {
45 }
47 void
48 LPELineSegment::doBeforeEffect (SPLPEItem *lpeitem)
49 {
50 lpetool_get_limiting_bbox_corners(SP_OBJECT_DOCUMENT(lpeitem), bboxA, bboxB);
51 }
53 std::vector<Geom::Path>
54 LPELineSegment::doEffect_path (std::vector<Geom::Path> const & path_in)
55 {
56 using namespace Geom;
57 std::vector<Geom::Path> output;
59 A = initialPoint(path_in);
60 B = finalPoint(path_in);
62 std::vector<Point> intersections = rect_line_intersect(bboxA, bboxB, A, B);
64 if (intersections.size() < 2) {
65 g_print ("Possible error - no intersection with limiting bounding box.\n");
66 return path_in;
67 }
69 if (end_type == END_OPEN_INITIAL || end_type == END_OPEN_BOTH) {
70 A = intersections[0];
71 }
73 if (end_type == END_OPEN_FINAL || end_type == END_OPEN_BOTH) {
74 B = intersections[1];
75 }
77 Geom::Path path(A);
78 path.appendNew<LineSegment>(B);
80 output.push_back(path);
82 return output;
83 }
85 } //namespace LivePathEffect
86 } /* namespace Inkscape */
88 /*
89 Local Variables:
90 mode:c++
91 c-file-style:"stroustrup"
92 c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
93 indent-tabs-mode:nil
94 fill-column:99
95 End:
96 */
97 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4 :