/**
* rsvg_css_parse_vbox
* @vbox: The CSS viewBox
* @x : The X output
* @y: The Y output
* @w: The Width output
* @h: The Height output
*
* Returns:
*/
RsvgViewBox
rsvg_css_parse_vbox (const char *vbox)
{
RsvgViewBox vb;
gdouble *list;
guint list_len;
vb.active = FALSE;
vb.x = vb.y = 0;
vb.w = vb.h = 0;
list = rsvg_css_parse_number_list (vbox, &list_len);
if (!(list && list_len))
return vb;
else if (list_len != 4) {
g_free (list);
return vb;
} else {
vb.x = list[0];
vb.y = list[1];
vb.w = list[2];
vb.h = list[3];
vb.active = TRUE;
g_free (list);
return vb;
}
}
static cairo_path_t *
_rsvg_node_poly_build_path (const char *value,
gboolean close_path)
{
double *pointlist;
guint pointlist_len, i;
RsvgPathBuilder builder;
cairo_path_t *path;
pointlist = rsvg_css_parse_number_list (value, &pointlist_len);
if (pointlist == NULL)
return NULL;
if (pointlist_len < 2) {
g_free (pointlist);
return NULL;
}
/* Calculate the number of cairo_path_data_t we'll need:
*
* pointlist_len / 2 -> number of commands
* pointlist_len / 2 -> number of points
* + 1 -> closepath
* ---------------------------------------------
* pointlist_len + 1 -> total
*/
rsvg_path_builder_init (&builder, pointlist_len + 1);
rsvg_path_builder_move_to (&builder, pointlist[0], pointlist[1]);
for (i = 2; i < pointlist_len; i += 2) {
double x, y;
x = pointlist[i];
/* We expect points to come in coordinate pairs. But if there is a
* missing part of one pair in a corrupt SVG, we'll have an incomplete
* list. In that case, we reuse the last-known Y coordinate.
*/
if (i + 1 < pointlist_len)
y = pointlist[i + 1];
else
y = pointlist[i - 1];
rsvg_path_builder_line_to (&builder, x, y);
}
if (close_path)
rsvg_path_builder_close_path (&builder);
path = rsvg_path_builder_finish (&builder);
g_free (pointlist);
return path;
}
