1 /*
2 * SVG <polyline> implementation
3 *
4 * Authors:
5 * Lauris Kaplinski <lauris@kaplinski.com>
6 * Abhishek Sharma
7 * Jon A. Cruz <jon@joncruz.org>
8 *
9 * Copyright (C) 1999-2002 Lauris Kaplinski
10 *
11 * Released under GNU GPL, read the file 'COPYING' for more information
12 */
14 #include "config.h"
16 #include "attributes.h"
17 #include "sp-polyline.h"
18 #include "display/curve.h"
19 #include <glibmm/i18n.h>
20 #include "xml/repr.h"
21 #include "document.h"
23 SPShapeClass * SPPolyLineClass::static_parent_class=0;
25 GType SPPolyLine::sp_polyline_get_type(void)
26 {
27 static GType polyline_type = 0;
29 if (!polyline_type) {
30 GTypeInfo polyline_info = {
31 sizeof (SPPolyLineClass),
32 NULL, /* base_init */
33 NULL, /* base_finalize */
34 (GClassInitFunc) SPPolyLineClass::sp_polyline_class_init,
35 NULL, /* klass_finalize */
36 NULL, /* klass_data */
37 sizeof (SPPolyLine),
38 16, /* n_preallocs */
39 (GInstanceInitFunc) SPPolyLine::init,
40 NULL, /* value_table */
41 };
42 polyline_type = g_type_register_static (SP_TYPE_SHAPE, "SPPolyLine", &polyline_info, (GTypeFlags)0);
43 }
44 return polyline_type;
45 }
47 void SPPolyLineClass::sp_polyline_class_init(SPPolyLineClass *klass)
48 {
49 GObjectClass * gobject_class = (GObjectClass *) klass;
50 SPObjectClass * sp_object_class = (SPObjectClass *) klass;
51 SPItemClass * item_class = (SPItemClass *) klass;
53 static_parent_class = (SPShapeClass *)g_type_class_ref(SP_TYPE_SHAPE);
55 sp_object_class->build = SPPolyLine::build;
56 sp_object_class->set = SPPolyLine::set;
57 sp_object_class->write = SPPolyLine::write;
59 item_class->description = SPPolyLine::getDescription;
60 }
62 void SPPolyLine::init(SPPolyLine * /*polyline*/)
63 {
64 /* Nothing here */
65 }
67 void SPPolyLine::build(SPObject * object, SPDocument * document, Inkscape::XML::Node * repr)
68 {
70 if (((SPObjectClass *) SPPolyLineClass::static_parent_class)->build) {
71 ((SPObjectClass *) SPPolyLineClass::static_parent_class)->build (object, document, repr);
72 }
74 object->readAttr( "points" );
75 }
77 void SPPolyLine::set(SPObject *object, unsigned int key, const gchar *value)
78 {
79 SPPolyLine *polyline = SP_POLYLINE(object);
81 switch (key) {
82 case SP_ATTR_POINTS: {
83 SPCurve * curve;
84 const gchar * cptr;
85 char * eptr;
86 gboolean hascpt;
88 if (!value) break;
89 curve = new SPCurve ();
90 hascpt = FALSE;
92 cptr = value;
93 eptr = NULL;
95 while (TRUE) {
96 gdouble x, y;
98 while (*cptr != '\0' && (*cptr == ',' || *cptr == '\x20' || *cptr == '\x9' || *cptr == '\xD' || *cptr == '\xA')) {
99 cptr++;
100 }
101 if (!*cptr) break;
103 x = g_ascii_strtod (cptr, &eptr);
104 if (eptr == cptr) break;
105 cptr = eptr;
107 while (*cptr != '\0' && (*cptr == ',' || *cptr == '\x20' || *cptr == '\x9' || *cptr == '\xD' || *cptr == '\xA')) {
108 cptr++;
109 }
110 if (!*cptr) break;
112 y = g_ascii_strtod (cptr, &eptr);
113 if (eptr == cptr) break;
114 cptr = eptr;
115 if (hascpt) {
116 curve->lineto(x, y);
117 } else {
118 curve->moveto(x, y);
119 hascpt = TRUE;
120 }
121 }
123 (SP_SHAPE (polyline))->setCurve (curve, TRUE);
124 curve->unref();
125 break;
126 }
127 default:
128 if (((SPObjectClass *) SPPolyLineClass::static_parent_class)->set) {
129 ((SPObjectClass *) SPPolyLineClass::static_parent_class)->set (object, key, value);
130 }
131 break;
132 }
133 }
135 Inkscape::XML::Node *SPPolyLine::write(SPObject *object, Inkscape::XML::Document *xml_doc, Inkscape::XML::Node *repr, guint flags)
136 {
137 SPPolyLine *polyline = SP_POLYLINE (object);
139 if ((flags & SP_OBJECT_WRITE_BUILD) && !repr) {
140 repr = xml_doc->createElement("svg:polyline");
141 }
143 if (repr != SP_OBJECT_REPR (object)) {
144 repr->mergeFrom(SP_OBJECT_REPR (object), "id");
145 }
147 if (((SPObjectClass *) (SPPolyLineClass::static_parent_class))->write) {
148 ((SPObjectClass *) (SPPolyLineClass::static_parent_class))->write (object, xml_doc, repr, flags);
149 }
151 return repr;
152 }
154 gchar *SPPolyLine::getDescription(SPItem * /*item*/)
155 {
156 return g_strdup(_("<b>Polyline</b>"));
157 }
160 /*
161 Local Variables:
162 mode:c++
163 c-file-style:"stroustrup"
164 c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
165 indent-tabs-mode:nil
166 fill-column:99
167 End:
168 */
169 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4 :