source file of the GNU LilyPond music typesetter
- (c) 2000--2003 Jan Nieuwenhuizen <janneke@gnu.org>
+ (c) 2000--2004 Jan Nieuwenhuizen <janneke@gnu.org>
*/
-#include "molecule.hh"
+#include <math.h>
+
+#include "stencil.hh"
#include "item.hh"
#include "spanner.hh"
#include "line-spanner.hh"
-#include "paper-def.hh"
+#include "output-def.hh"
#include "paper-column.hh"
#include "staff-symbol-referencer.hh"
#include "font-interface.hh"
#include "warn.hh"
#include "align-interface.hh"
+#include "lookup.hh"
+#include "line-interface.hh"
-#include <math.h>
-
-
-/*
- slightishly clumsy interface?
-
- Make a Scheme expression for a line going from (0,0) to (dx,dy).
- */
-
-static SCM
-line_atom (Grob *me, Real thick, Real dx, Real dy)
+Stencil
+zigzag_stencil (Grob *me,
+ Offset from,
+ Offset to)
{
- SCM type = me->get_grob_property ("style");
- Real staff_space = Staff_symbol_referencer::staff_space (me);
-
- // maybe these should be in line-thickness?
- Real length = staff_space;
- SCM s = me->get_grob_property ("dash-length");
- if (gh_number_p (s))
- length = gh_scm2double (s) * staff_space;
-
- Real period = 2 * length + thick;
- s = me->get_grob_property ("dash-period");
- if (gh_number_p (s))
- period = gh_scm2double (s) * staff_space;
-
- if (type == ly_symbol2scm ("dotted-line"))
- length = thick;
-
- if (type == ly_symbol2scm ("line"))
- length = period + thick;
-
- Real on = length - thick;
- Real off = period - on;
-
- SCM list = scm_list_n (ly_symbol2scm ("dashed-line"),
- gh_double2scm (thick),
- gh_double2scm (on),
- gh_double2scm (off),
- gh_double2scm (dx),
- gh_double2scm (dy),
- SCM_UNDEFINED);
+ Offset dz = to -from;
+ Real dx = dz[X_AXIS];
+ Real dy = dz[Y_AXIS];
- return list;
-}
-
-static SCM
-zigzag_atom (Grob *me, Real thick, Real dx, Real dy)
-{
+ Real thick = Staff_symbol_referencer::line_thickness (me);
+ thick *= robust_scm2double (me->get_property ("thickness"), 1.0); // todo: staff sym referencer?
+
Real staff_space = Staff_symbol_referencer::staff_space (me);
- SCM ws = me->get_grob_property ("zigzag-width");
- SCM ls = me->get_grob_property ("zigzag-length");
- double w = (gh_number_p(ws) ? gh_scm2double(ws) : 1)*staff_space;
- double l = (gh_number_p(ls) ? gh_scm2double(ls) : 1)*w;
- double h = l>w/2 ? sqrt(l*l-w*w/4) : 0;
+
+ double w = robust_scm2double (me->get_property ("zigzag-width"), 1)*staff_space;
+ double l = robust_scm2double ( me->get_property ("zigzag-length"), 1)* w;
+ double h = l>w/2 ? sqrt (l*l-w*w/4) : 0;
SCM list = scm_list_n (ly_symbol2scm ("zigzag-line"),
- gh_bool2scm (true),
- gh_double2scm (w),
- gh_double2scm (h),
- gh_double2scm (thick),
- gh_double2scm (dx),
- gh_double2scm (dy),
+ ly_bool2scm (true),
+ scm_make_real (w),
+ scm_make_real (h),
+ scm_make_real (thick),
+ scm_make_real (dx),
+ scm_make_real (dy),
SCM_UNDEFINED);
-
- return list;
+ Box b;
+ b.add_point (Offset (0,0));
+ b.add_point (dz);
+ b[X_AXIS].widen (thick/2);
+ b[Y_AXIS].widen (thick/2);
+
+ return Stencil (b, list);
}
-MAKE_SCHEME_CALLBACK(Line_spanner, after_line_breaking, 1);
+MAKE_SCHEME_CALLBACK (Line_spanner, after_line_breaking, 1);
SCM
Line_spanner::after_line_breaking (SCM g)
{
--hwn.
*/
- if (sp->get_bound (LEFT)->break_status_dir()
- && !sp->get_bound (RIGHT)->break_status_dir())
+ if (sp->get_bound (LEFT)->break_status_dir ()
+ && !sp->get_bound (RIGHT)->break_status_dir ())
{
/*
Can't do suicide, since this mucks up finding the trend.
*/
- me->set_grob_property ("molecule-callback", SCM_EOL);
+ me->set_property ("print-function", SCM_EOL);
}
return SCM_EOL;
}
-Molecule
-Line_spanner::line_molecule (Grob *me, Real thick, Real dx, Real dy)
+Stencil
+Line_spanner::line_stencil (Grob *me,
+ Offset from,
+ Offset to)
{
- Molecule mol;
- SCM type = me->get_grob_property ("style");
- if (gh_symbol_p (type)
+ Offset dz = to -from ;
+ SCM type = me->get_property ("style");
+ if (ly_c_symbol_p (type)
&& (type == ly_symbol2scm ("line")
|| type == ly_symbol2scm ("dashed-line")
|| type == ly_symbol2scm ("dotted-line")
- || (type == ly_symbol2scm ("trill") && dy != 0)))
+ || type == ly_symbol2scm ("zigzag")
+ || (type == ly_symbol2scm ("trill") && dz[Y_AXIS] != 0)))
{
- Box b (Interval (-0.5* thick + (0 <? dx) ,0.5* thick+ (0 >? dx)),
- Interval (- 0.5* thick + (0<? dy), 0.5*thick + (0 >? dy)));
- mol = Molecule (b, line_atom (me, thick, dx, dy));
+ return (type == ly_symbol2scm ("zigzag"))
+ ? zigzag_stencil (me, from, to)
+ : Line_interface::line (me, from, to);
}
- else if (gh_symbol_p (type)
- && type == ly_symbol2scm ("zigzag"))
- {
- // TODO:
- Box b (Interval (-0.5* thick + (0 <? dx) ,0.5* thick+ (0 >? dx)),
- Interval (- 0.5* thick + (0<? dy), 0.5*thick + (0 >? dy)));
- mol = Molecule (b, zigzag_atom (me, thick, dx, dy));
-
- }
- else if (gh_symbol_p (type)
+ else if (ly_c_symbol_p (type)
&& type == ly_symbol2scm ("trill"))
{
- SCM alist_chain = Font_interface::font_alist_chain (me);
- SCM style_alist = scm_list_n (gh_cons (ly_symbol2scm ("font-family"),
- ly_symbol2scm ("music")),
+ SCM alist_chain = Font_interface::text_font_alist_chain (me);
+ SCM style_alist = scm_list_n (scm_cons (ly_symbol2scm ("font-encoding"),
+ ly_symbol2scm ("fetaMusic")),
SCM_UNDEFINED);
- Font_metric *fm = Font_interface::get_font (me,
- gh_cons (style_alist,
- alist_chain));
- Molecule m = fm->find_by_name ("scripts-trill-element");
+ Font_metric *fm = select_font (me->get_paper (),
+ scm_cons (style_alist,
+ alist_chain));
+ Stencil m = fm->find_by_name ("scripts-trill-element");
+ Stencil mol;
+
do
mol.add_at_edge (X_AXIS, RIGHT, m, 0,0);
while (m.extent (X_AXIS).length ()
&& mol.extent (X_AXIS).length ()
- + m.extent (X_AXIS).length () < dx);
+ + m.extent (X_AXIS).length () < dz[X_AXIS]);
/*
FIXME: should center element on x/y
*/
mol.translate_axis (m.extent (X_AXIS).length () / 2, X_AXIS);
mol.translate_axis (-(mol.extent (Y_AXIS)[DOWN]
- + mol.extent (Y_AXIS).length ())/2, Y_AXIS);
+ + mol.extent (Y_AXIS).length ())/2, Y_AXIS);
+
+ mol.translate (from);
+ return mol;
}
- return mol;
+ return Stencil ();
}
/*
Warning: this thing is a cross-staff object, so it should have empty Y-dimensions.
(If not, you risk that this is called from the staff-alignment
- routine, via molecule_extent. At this point, the staves aren't
+ routine, via stencil_extent. At this point, the staves aren't
separated yet, so it doesn't work cross-staff.
*/
-MAKE_SCHEME_CALLBACK (Line_spanner, brew_molecule, 1);
+MAKE_SCHEME_CALLBACK (Line_spanner, print, 1);
SCM
-Line_spanner::brew_molecule (SCM smob)
+Line_spanner::print (SCM smob)
{
Spanner *me = dynamic_cast<Spanner*> (unsmob_grob (smob));
me->get_bound (RIGHT));
- Real gap = gh_scm2double (me->get_grob_property ("gap"));
+ Real gap = robust_scm2double (me->get_property ("gap"), 0.0);
Offset ofxy (gap, 0); /*offset from start point to start of line*/
Offset dxy ;
Offset my_off;
Offset his_off;
- Real thick = me->get_paper ()->get_var ("linethickness");
-
- SCM s = me->get_grob_property ("thickness");
- if (gh_number_p (s))
- thick *= gh_scm2double (s);
- if (bound[RIGHT]->break_status_dir())
+ if (bound[RIGHT]->break_status_dir ())
{
if (bound[LEFT]->break_status_dir ())
{
programming_error ("line-spanner with two broken ends. Farewell sweet world.");
- me->suicide();
+ me->suicide ();
return SCM_EOL;
}
{
programming_error ("no note heads for the line spanner on next line?"
" Confused.");
- me->suicide();
+ me->suicide ();
return SCM_EOL;
}
dz = (dz.length () - 2*gap) *dir;
- Molecule l (line_molecule (me, thick, dz[X_AXIS],
- dz[Y_AXIS]));
+ Stencil l (line_stencil (me, Offset (0, 0), dz));
l.translate (dir * gap + p1
- Offset (me->relative_coordinate (commonx, X_AXIS),
ofxy = dxy * (off/dxy.length ());
dxy -= 2*ofxy;
- Molecule line = line_molecule (me, thick, dxy[X_AXIS], dxy[Y_AXIS]);
- line.translate_axis (bound[LEFT]->extent (bound[LEFT],
- X_AXIS).length ()/2, X_AXIS);
+ Stencil line = line_stencil (me, Offset (0,0),dxy);
+
+ line.translate_axis (bound[LEFT]->extent (bound[LEFT], X_AXIS).length ()/2, X_AXIS);
line.translate (ofxy - my_off + his_off);
return line.smobbed_copy ();
}
ADD_INTERFACE (Line_spanner, "line-spanner-interface",
- "Generic line drawn between two objects, eg. for use with glissandi.\n"
-"gap is measured in staff-spaces.\n"
-"The property 'type is one of: line, dashed-line, trill, dotted-line or zigzag.\n"
-"\n",
- "gap dash-period dash-length zigzag-width zigzag-length thickness style");
+ "Generic line drawn between two objects, e.g. for use with glissandi.\n"
+ "The property @code{style} can be @code{line}, "
+ "@code{dashed-line}, @code{trill}, \n"
+ "@code{dotted-line} or @code{zigzag}.\n"
+ "\n"
+ ,
+ "gap zigzag-width zigzag-length thickness");
projects / lilypond.git / blobdiff