-/*
- system-start-delimiter.cc -- implement System_start_delimiter
-
+/*
+ system-start-delimiter.cc -- implement System_start_delimiter
+
source file of the GNU LilyPond music typesetter
-
- (c) 2000--2002 Han-Wen Nienhuys <hanwen@cs.uu.nl>
-
+
+ (c) 2000--2005 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+
*/
+
+#include "system-start-delimiter.hh"
+
#include <math.h>
+#include "spanner.hh"
#include "axis-group-interface.hh"
-#include "system-start-delimiter.hh"
-#include "paper-def.hh"
-#include "molecule.hh"
+#include "output-def.hh"
#include "font-interface.hh"
#include "all-font-metrics.hh"
-#include "grob.hh"
#include "staff-symbol-referencer.hh"
#include "lookup.hh"
-Molecule
-System_start_delimiter::staff_bracket (Grob*me,Real height)
+Stencil
+System_start_delimiter::staff_bracket (Grob*me, Real height)
{
- Real arc_height = gh_scm2double (me->get_grob_property ("arch-height")) ;
-
+ Real arc_height = scm_to_double (me->get_property ("arch-height")) ;
+
SCM at = scm_list_n (ly_symbol2scm ("bracket"),
- me->get_grob_property ("arch-angle"),
- me->get_grob_property ("arch-width"),
- gh_double2scm (arc_height),
- gh_double2scm (height),
- me->get_grob_property ("arch-thick"),
- me->get_grob_property ("thickness"),
+ me->get_property ("arch-angle"),
+ me->get_property ("arch-width"),
+ scm_make_real (arc_height),
+ scm_make_real (height),
+ me->get_property ("arch-thick"),
+ me->get_property ("thickness"),
SCM_UNDEFINED);
/*
TODO: sort this out.
-
+
Another thing:
In system-start-delimiter.cc I see the line
(arc_height changes the x-axis-size of arc ; arc_width changes the
y-axis-size)
Will not fix it since I'm not sure.
-
+
*/
Real h = height + 2 * arc_height;
Box b (Interval (0, 1.5), Interval (-h/2, h/2));
- Molecule mol (b, at);
+ Stencil mol (b, at);
mol.align_to (X_AXIS, CENTER);
return mol;
}
-Molecule
-System_start_delimiter::simple_bar (Grob*me,Real h)
+Stencil
+System_start_delimiter::simple_bar (Grob*me, Real h)
{
- Real w = me->get_paper ()->get_var ("linethickness") *
- gh_scm2double (me->get_grob_property ("thickness"));
- return Lookup::filledbox (Box (Interval (0,w), Interval (-h/2, h/2)));
+ Real lt = me->get_layout ()->get_dimension (ly_symbol2scm ("linethickness")) ;
+ Real w = lt * robust_scm2double (me->get_property ("thickness"), 1);
+ return Lookup::round_filled_box (Box (Interval (0, w), Interval (-h/2, h/2)),
+ lt);
}
-MAKE_SCHEME_CALLBACK (System_start_delimiter,after_line_breaking,1);
+MAKE_SCHEME_CALLBACK (System_start_delimiter, after_line_breaking, 1);
SCM
System_start_delimiter::after_line_breaking (SCM smob)
{
Grob * me = unsmob_grob (smob);
- SCM gl = me->get_grob_property ("glyph");
-
- if (scm_ilength (me->get_grob_property ("elements")) <= 1
- && gh_equal_p (gl,scm_makfrom0str ("bar-line")))
+ SCM gl = me->get_property ("glyph");
+ if (ly_c_equal_p (gl, scm_makfrom0str ("bar-line")))
{
- me->suicide ();
- }
+ int count = 0;
+
+ /*
+ Get all coordinates, to trigger Hara kiri.
+ */
+ SCM elts = me->get_property ("elements");
+ Grob *common = common_refpoint_of_list (elts, me, Y_AXIS);
+ for (SCM s = elts; scm_is_pair (s); s = scm_cdr (s))
+ {
+ Interval v = unsmob_grob (scm_car (s))->extent (common, Y_AXIS);
+
+ if (!v.is_empty ())
+ count ++;
+ }
+
+ if (count <= 1)
+ {
+ me->suicide ();
+ }
+ }
return SCM_UNSPECIFIED;
}
-MAKE_SCHEME_CALLBACK (System_start_delimiter,brew_molecule,1);
+MAKE_SCHEME_CALLBACK (System_start_delimiter, print, 1);
SCM
-System_start_delimiter::brew_molecule (SCM smob)
+System_start_delimiter::print (SCM smob)
{
- Grob * me = unsmob_grob (smob);
+ Spanner *me = unsmob_spanner (smob);
+ if (!me)
+ return SCM_EOL;
- SCM s = me->get_grob_property ("glyph");
- if (!gh_string_p (s))
+ SCM s = me->get_property ("glyph");
+ if (!scm_is_string (s))
return SCM_EOL;
SCM gsym = scm_string_to_symbol (s) ;
- SCM c = me->get_grob_property ("collapse-height");
-
+
Real staff_space = Staff_symbol_referencer::staff_space (me);
- Interval ext = ly_scm2interval (Axis_group_interface::group_extent_callback
- (me->self_scm (), gh_int2scm (Y_AXIS)));
- Real l = ext.length () / staff_space;
-
- if (ext.empty_b ()
- || (gh_number_p (c) && l <= gh_scm2double (c)))
+
+ SCM elts = me->get_property ("elements");
+ Grob * common = common_refpoint_of_list (elts, me, Y_AXIS);
+
+ Interval ext;
+ for (SCM s = elts; scm_is_pair (s); s = scm_cdr (s))
+ {
+ Spanner * sp = unsmob_spanner (scm_car (s));
+ if (sp &&
+ sp->get_bound (LEFT) == me->get_bound (LEFT))
+ {
+ Interval dims = sp->extent (common, Y_AXIS);
+ if (!dims.is_empty ())
+ ext.unite (dims);
+ }
+ }
+
+ ext -= me->relative_coordinate (common, Y_AXIS);
+
+ Real len = ext.length () / staff_space;
+
+ if (ext.is_empty ()
+ || (robust_scm2double (me->get_property ("collapse-height"), 0.0) >= len))
{
me->suicide ();
return SCM_EOL;
}
- Molecule m;
+ Stencil m;
- if (gsym== ly_symbol2scm ("bracket"))
- m = staff_bracket (me,l);
+ if (gsym == ly_symbol2scm ("bracket"))
+ m = staff_bracket (me, len);
else if (gsym == ly_symbol2scm ("brace"))
- m = staff_brace (me,l);
+ m = staff_brace (me, len);
else if (gsym == ly_symbol2scm ("bar-line"))
- m = simple_bar (me,l);
-
+ m = simple_bar (me, len);
+
m.translate_axis (ext.center (), Y_AXIS);
return m.smobbed_copy ();
}
-Molecule
-System_start_delimiter::staff_brace (Grob*me, Real y)
+Stencil
+System_start_delimiter::staff_brace (Grob *me, Real y)
{
Font_metric *fm = 0;
-
- for (int i = 0; ; i++)
- {
- if (!fm || y > fm->get_char (fm->count ()-1)[Y_AXIS].length ())
- {
- /* We go through the style sheet to lookup the font file
- name. This is better than using find_font directly,
- esp. because that triggers mktextfm for non-existent
- fonts. */
- SCM br = ly_symbol2scm ("braces");
- SCM fam = gh_cons (ly_symbol2scm ("font-family"), br);
- SCM sz = gh_cons (ly_symbol2scm ("font-relative-size"), gh_int2scm (i));
-
- SCM alist = scm_list_n (fam, sz, SCM_UNDEFINED);
- fm = Font_interface::get_font (me, scm_list_n (alist, SCM_UNDEFINED));
- /* Hmm, if lookup fails, we get cmr10 anyway */
- if (ly_scm2string (ly_car (fm->description_)) == "cmr10")
- break;
- }
- else
- break;
- }
+ /* We go through the style sheet to lookup the font file
+ name. This is better than using find_font directly,
+ esp. because that triggers mktextfm for non-existent
+ fonts. */
+ SCM fam = scm_cons (ly_symbol2scm ("font-encoding"),
+ ly_symbol2scm ("fetaBraces"));
- int lo = 0;
+ SCM alist = scm_list_n (fam, SCM_UNDEFINED);
+ fm = select_font (me->get_layout (), scm_list_n (alist, SCM_UNDEFINED));
+ int lo = 0;
int hi = (fm->count () - 1) >? 2;
Box b;
do
{
int cmp = (lo + hi) / 2;
- b = fm->get_char (cmp);
- if (b[Y_AXIS].empty_b () || b[Y_AXIS].length () > y)
+ b = fm->get_indexed_char (cmp);
+ if (b[Y_AXIS].is_empty () || b[Y_AXIS].length () > y)
hi = cmp;
else
lo = cmp;
}
while (hi - lo > 1);
-
- SCM at = scm_list_n (ly_symbol2scm ("char"), gh_int2scm (lo), SCM_UNDEFINED);
- at = fontify_atom (fm, at);
-
- b = fm->get_char (lo);
- b[X_AXIS] = Interval (0,0);
- return Molecule (b, at);
-}
-
+ Stencil stil (fm->find_by_name ("brace" + to_string (lo)));
+ b = stil.extent_box ();
+ b[X_AXIS] = Interval (0, 0);
+ return Stencil (b, stil.expr ());
+}
-ADD_INTERFACE (System_start_delimiter,"system-start-delimiter-interface",
- "#'style can be bar-line, bracket or brace",
- "collapse-height thickness arch-height arch-angle arch-thick arch-width bracket-thick glyph");
+ADD_INTERFACE (System_start_delimiter, "system-start-delimiter-interface",
+ "The brace, bracket or bar in front of the system. "
+ "It is implemented as a spanner."
+ ,
+ "collapse-height thickness "
+ "arch-height arch-angle arch-thick arch-width bracket-thick glyph");
projects / lilypond.git / blobdiff