source file of the GNU LilyPond music typesetter
- (c) 1997--2001 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+ (c) 1997--2002 Han-Wen Nienhuys <hanwen@cs.uu.nl>
Jan Nieuwenhuizen <janneke@gnu.org>
Interval (min_y, max_y));
- SCM at = scm_listify (ly_symbol2scm ("beam"),
+ SCM at = scm_list_n (ly_symbol2scm ("beam"),
gh_double2scm (width),
gh_double2scm (slope),
gh_double2scm (thick),
return Molecule (b, at);
}
-
-
Molecule
Lookup::dashed_slur (Bezier b, Real thick, Real dash)
{
l = gh_cons (ly_offset2scm (b.control_[i]), l);
}
- SCM at = (scm_listify (ly_symbol2scm ("dashed-slur"),
+ SCM at = (scm_list_n (ly_symbol2scm ("dashed-slur"),
gh_double2scm (thick),
gh_double2scm (dash),
ly_quote_scm (l),
return Molecule (box, at);
}
-
+Molecule
+Lookup::line (Real th, Offset f, Offset t)
+{
+ SCM at = (scm_list_n (ly_symbol2scm ("draw-line"),
+ gh_double2scm (th),
+ gh_double2scm (f[X_AXIS]),
+ gh_double2scm (f[Y_AXIS]),
+ gh_double2scm (t[X_AXIS]),
+ gh_double2scm (t[Y_AXIS]),
+ SCM_UNDEFINED));
+
+ Box box;
+ box.add_point (f);
+ box.add_point (t);
+
+ box[X_AXIS].widen (th/2);
+ box[Y_AXIS].widen (th/2);
+
+ return Molecule (box, at);
+}
Molecule
return Molecule (b, SCM_EOL);
}
-
Molecule
Lookup::filledbox (Box b)
{
- SCM at = (scm_listify (ly_symbol2scm ("filledbox"),
+ SCM at = (scm_list_n (ly_symbol2scm ("filledbox"),
gh_double2scm (-b[X_AXIS][LEFT]),
gh_double2scm (b[X_AXIS][RIGHT]),
gh_double2scm (-b[Y_AXIS][DOWN]),
return Molecule (b,at);
}
+/*
+ * round filled box:
+ *
+ * __________________________________
+ * / \ ^ / \ ^
+ * | |blot | |
+ * | | |dia | | |
+ * | |meter | |
+ * |\ _ _ / v \ _ _ /| |
+ * | | |
+ * | | | Box
+ * | <------>| | extent
+ * | blot | | (Y_AXIS)
+ * | diameter| |
+ * | | |
+ * | _ _ _ _ | |
+ * |/ \ / \| |
+ * | | |
+ * | | | | |
+ * | | |
+ * x\_____/______________\_____/|_____v
+ * |(0,0) |
+ * | |
+ * | |
+ * |<-------------------------->|
+ * Box extent(X_AXIS)
+ */
+Molecule
+Lookup::roundfilledbox (Box b, Real blotdiameter)
+{
+ if (b.x ().length () < blotdiameter)
+ {
+ programming_error (_f ("round filled box horizontal extent smaller than blot; decreasing blot"));
+ blotdiameter = b.x ().length ();
+ }
+ if (b.y ().length () < blotdiameter)
+ {
+ programming_error (_f ("round filled box vertical extent smaller than blot; decreasing blot"));
+ blotdiameter = b.y ().length ();
+ }
+
+ SCM at = (scm_list_n (ly_symbol2scm ("roundfilledbox"),
+ gh_double2scm (-b[X_AXIS][LEFT]),
+ gh_double2scm (b[X_AXIS][RIGHT]),
+ gh_double2scm (-b[Y_AXIS][DOWN]),
+ gh_double2scm (b[Y_AXIS][UP]),
+ gh_double2scm (blotdiameter),
+ SCM_UNDEFINED));
+
+ return Molecule (b,at);
+}
+
Molecule
Lookup::frame (Box b, Real thick)
{
edges[o][DOWN] = b[o][DOWN] - thick/2;
edges[o][UP] = b[o][UP] + thick/2;
-
m.add_molecule (filledbox (edges));
}
while (flip (&d) != LEFT);
}
-
/*
Make a smooth curve along the points
*/
{
Real alpha = (curve.control_[3] - curve.control_[0]).arg ();
Bezier back = curve;
-
+ Offset perp = curvethick * complex_exp (Offset (0, alpha + M_PI/2)) * 0.5;
back.reverse ();
- back.control_[1] += curvethick * complex_exp (Offset (0, alpha + M_PI/2));
- back.control_[2] += curvethick * complex_exp (Offset (0, alpha + M_PI/2));
+ back.control_[1] += perp;
+ back.control_[2] += perp;
+ curve.control_[1] -= perp;
+ curve.control_[2] -= perp;
+
SCM scontrols[8];
for (int i=4; i--;)
}
- SCM at = (scm_listify (ly_symbol2scm ("bezier-sandwich"),
+ SCM at = (scm_list_n (ly_symbol2scm ("bezier-bow"),
ly_quote_scm (list),
gh_double2scm (linethick),
SCM_UNDEFINED));
+ Box b(curve.extent (X_AXIS),
+ curve.extent (Y_AXIS));
+
+ b[X_AXIS].unite (back.extent (X_AXIS));
+ b[Y_AXIS].unite (back.extent (Y_AXIS));
- Box b (curve.extent (X_AXIS), curve.extent (Y_AXIS));
return Molecule (b, at);
}
+/*
+ * Bezier Sandwich:
+ *
+ * .|
+ * . |
+ * top . |
+ * . curve |
+ * . |
+ * . |
+ * . |
+ * | |
+ * | .|
+ * | .
+ * | bottom .
+ * | . curve
+ * | .
+ * | .
+ * | .
+ * | .
+ * |.
+ * |
+ *
+ */
+Molecule
+Lookup::bezier_sandwich (Bezier top_curve, Bezier bottom_curve)
+{
+ /*
+ Need the weird order b.o. the way PS want its arguments
+ */
+ SCM list = SCM_EOL;
+ list = gh_cons (ly_offset2scm (bottom_curve.control_[3]), list);
+ list = gh_cons (ly_offset2scm (bottom_curve.control_[0]), list);
+ list = gh_cons (ly_offset2scm (bottom_curve.control_[1]), list);
+ list = gh_cons (ly_offset2scm (bottom_curve.control_[2]), list);
+ list = gh_cons (ly_offset2scm (top_curve.control_[0]), list);
+ list = gh_cons (ly_offset2scm (top_curve.control_[3]), list);
+ list = gh_cons (ly_offset2scm (top_curve.control_[2]), list);
+ list = gh_cons (ly_offset2scm (top_curve.control_[1]), list);
+
+ SCM horizontal_bend = scm_list_n (ly_symbol2scm ("bezier-sandwich"),
+ ly_quote_scm (list),
+ gh_double2scm (0.0),
+ SCM_UNDEFINED);
+
+ Interval x_extent = top_curve.extent (X_AXIS);
+ x_extent.unite (bottom_curve.extent (X_AXIS));
+ Interval y_extent = top_curve.extent (Y_AXIS);
+ y_extent.unite (bottom_curve.extent (Y_AXIS));
+ Box b (x_extent, y_extent);
+
+ return Molecule (b, horizontal_bend);
+}
+
+/*
+ * Horizontal Slope:
+ *
+ * /| ^
+ * / | |
+ * / | | height
+ * / | |
+ * / | v
+ * | /
+ * | /
+ * (0,0) x /slope=dy/dx
+ * | /
+ * |/
+ *
+ * <----->
+ * width
+ */
+Molecule
+Lookup::horizontal_slope (Real width, Real slope, Real height)
+{
+ SCM width_scm = gh_double2scm (width);
+ SCM slope_scm = gh_double2scm (slope);
+ SCM height_scm = gh_double2scm (height);
+ SCM horizontal_slope = scm_list_n (ly_symbol2scm ("beam"),
+ width_scm, slope_scm,
+ height_scm, SCM_UNDEFINED);
+ Box b (Interval (0, width),
+ Interval (-height/2, height/2 + width*slope));
+ return Molecule (b, horizontal_slope);
+}
+
+/*
+ TODO: junk me.
+ */
Molecule
Lookup::accordion (SCM s, Real staff_space, Font_metric *fm)
{
return m;
}
-/*
- TODO: should use slope instead? Angle gives nasty rad <-> degree
- conversions.
-*/
Molecule
Lookup::repeat_slash (Real w, Real s, Real t)
{
SCM wid = gh_double2scm (w);
SCM sl = gh_double2scm (s);
SCM thick = gh_double2scm (t);
- SCM slashnodot = scm_listify (ly_symbol2scm ("repeat-slash"),
+ SCM slashnodot = scm_list_n (ly_symbol2scm ("repeat-slash"),
wid, sl, thick, SCM_UNDEFINED);
Box b (Interval (0, w + sqrt (sqr(t/s) + sqr (t))),
Interval (0, w * s));
- return Molecule (b, slashnodot);
+ return Molecule (b, slashnodot); // http://slashnodot.org
}
+
+Molecule
+Lookup::bracket (Axis a, Interval iv, Real thick, Real protude)
+{
+ Box b;
+ Axis other = Axis((a+1)%2);
+ b[a] = iv;
+ b[other] = Interval(-1, 1) * thick * 0.5;
+
+ Molecule m = filledbox (b);
+
+ b[a] = Interval (iv[UP] - thick, iv[UP]);
+ Interval oi = Interval (-thick/2, thick/2 + fabs (protude)) ;
+ oi *= sign (protude);
+ b[other] = oi;
+ m.add_molecule (filledbox (b));
+ b[a] = Interval (iv[DOWN], iv[DOWN] +thick);
+ m.add_molecule (filledbox(b));
+
+ return m;
+}
+
+/*
+ TODO: use rounded boxes.
+ */
+LY_DEFINE(ly_bracket ,"ly-bracket",
+ 4, 0, 0,
+ (SCM a, SCM iv, SCM t, SCM p),
+ "Make a bracket in direction @var{a}. The extent of the bracket is
+given by @var{iv}. The wings protude by an amount of @var{p}, which
+may be negative. The thickness is given by @var{t}.")
+{
+ SCM_ASSERT_TYPE(ly_axis_p (a), a, SCM_ARG1, __FUNCTION__, "axis") ;
+ SCM_ASSERT_TYPE(ly_number_pair_p (iv), iv, SCM_ARG2, __FUNCTION__, "number pair") ;
+ SCM_ASSERT_TYPE(gh_number_p (t), a, SCM_ARG3, __FUNCTION__, "number") ;
+ SCM_ASSERT_TYPE(gh_number_p(p), a, SCM_ARG4, __FUNCTION__, "number") ;
+
+
+ return Lookup::bracket ((Axis)gh_scm2int (a), ly_scm2interval (iv),
+ gh_scm2double (t),
+ gh_scm2double (p)).smobbed_copy ();
+}
+
projects / lilypond.git / blobdiff