source file of the GNU LilyPond music typesetter
- (c) 1997--2006 Han-Wen Nienhuys <hanwen@xs4all.nl>
+ (c) 1997--2007 Han-Wen Nienhuys <hanwen@xs4all.nl>
Jan Nieuwenhuizen <janneke@gnu.org>
*/
ly_quote_scm (l),
SCM_UNDEFINED));
- Box box (Interval (0, 0), Interval (0, 0));
+ Box box (b.extent (X_AXIS), b.extent (Y_AXIS));
return Stencil (box, at);
}
+Stencil
+Lookup::rotated_box (Real slope, Real width, Real thick, Real blot)
+{
+ vector<Offset> pts;
+ Offset rot (1, slope);
+
+ thick -= 2*blot;
+ width -= 2*blot;
+ rot /= sqrt (1 + slope*slope);
+ pts.push_back (Offset (0, -thick / 2) * rot);
+ pts.push_back (Offset (width, -thick / 2) * rot);
+ pts.push_back (Offset (width, thick / 2) * rot);
+ pts.push_back (Offset (0, thick / 2) * rot);
+ return Lookup::round_filled_polygon (pts, blot);
+}
+
Stencil
Lookup::horizontal_line (Interval w, Real th)
{
Stencil
Lookup::blank (Box b)
{
- return Stencil (b, scm_makfrom0str (""));
+ return Stencil (b, scm_from_locale_string (""));
}
Stencil
/* remove consecutive duplicate points */
for (vsize i = 0; i < points.size (); i++)
{
- int next_i = (i + 1) % points.size ();
- Real d = (points[i] - points[next_i]).length ();
+ int next = (i + 1) % points.size ();
+ Real d = (points[i] - points[next]).length ();
if (d < epsilon)
programming_error ("Polygon should not have duplicate points");
}
b[X_AXIS] = Interval (0, iv.length ());
b[Y_AXIS] = Interval (min (0., protude), max (0.0, protude));
- Offset z1 (iv[LEFT], 0);
- Offset z2 (iv[RIGHT], 0);
- Offset z3 ((z1 + z2)[X_AXIS] / 2, protude);
+ vector<Offset> points;
+ points.push_back (Offset (iv[LEFT], 0));
+ points.push_back (Offset (iv[RIGHT], 0));
+ points.push_back (Offset (iv.center (), protude));
- /*
- TODO: move Triangle to Line_interface ?
- */
- Stencil tri = Line_interface::make_line (thick, z1, z2);
- tri.add_stencil (Line_interface::make_line (thick, z2, z3));
- tri.add_stencil (Line_interface::make_line (thick, z3, z1));
+ return points_to_line_stencil (thick, points);
- return tri;
}
+
+
+Stencil
+Lookup::points_to_line_stencil (Real thick, vector<Offset> const &points)
+{
+ Stencil ret;
+ for (vsize i = 1; i < points.size (); i++)
+ {
+ if (points[i-1].is_sane () && points[i].is_sane ())
+ {
+ Stencil line
+ = Line_interface::make_line (thick, points[i-1], points[i]);
+ ret.add_stencil (line);
+ }
+ }
+ return ret;
+}