source file of the GNU LilyPond music typesetter
- (c) 2000 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+ (c) 2000--2001 Han-Wen Nienhuys <hanwen@cs.uu.nl>
*/
#include <math.h>
#include "system-start-delimiter.hh"
#include "paper-def.hh"
#include "molecule.hh"
-#include "font-metric.hh"
+#include "font-interface.hh"
#include "all-font-metrics.hh"
-#include "score-element.hh"
+#include "grob.hh"
+#include "staff-symbol-referencer.hh"
#include "lookup.hh"
Molecule
-System_start_delimiter::staff_bracket (Score_element*me,Real height)
+System_start_delimiter::staff_bracket (Grob*me,Real height)
{
- Paper_def* p= me->paper_l ();
- SCM scmss = p->get_scmvar ("staffspace");
- Real ss = gh_scm2double (scmss);
- Real arc_height = gh_scm2double (me->get_elt_property("arch-height")) * ss ;
+ Real arc_height = gh_scm2double (me->get_grob_property ("arch-height")) ;
SCM at = gh_list (ly_symbol2scm ("bracket"),
- scm_product (me->get_elt_property ("arch-angle"), scmss),
- scm_product (me->get_elt_property ("arch-width"), scmss),
+ me->get_grob_property ("arch-angle"),
+ me->get_grob_property ("arch-width"),
gh_double2scm (arc_height),
- scm_product (me->get_elt_property ("bracket-width"),scmss),
gh_double2scm (height),
- scm_product (me->get_elt_property ("arch-thick"),scmss),
- scm_product (me->get_elt_property ("bracket-thick"),scmss),
+ me->get_grob_property ("arch-thick"),
+ me->get_grob_property ("bracket-thick"),
SCM_UNDEFINED);
+/*
+TODO: sort this out.
+
+Another thing:
+In system-start-delimiter.cc I see the line
+
+ Real h = height + 2 * arc_height;
+
+But I really think that you mean
+
+ Real h = height + 2 * arc_width;
+
+(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 * ss), Interval (-h/2, h/2));
+ Box b (Interval (0, 1.5), Interval (-h/2, h/2));
Molecule mol (b, at);
mol.align_to (X_AXIS, CENTER);
return mol;
}
void
-System_start_delimiter::set_interface (Score_element*me)
+System_start_delimiter::set_interface (Grob*me)
{
me->set_interface (ly_symbol2scm ("system-start-delimiter-interface"));
}
bool
-System_start_delimiter::has_interface (Score_element*me)
+System_start_delimiter::has_interface (Grob*me)
{
return me->has_interface (ly_symbol2scm ("system-start-delimiter-interface"));
}
Molecule
-System_start_delimiter::simple_bar (Score_element*me,Real h)
+System_start_delimiter::simple_bar (Grob*me,Real h)
{
Real w = me->paper_l ()->get_var ("stafflinethickness") *
- gh_scm2double (me->get_elt_property ("thickness"));
- return Lookup::filledbox (Box (Interval(0,w), Interval(-h/2, h/2)));
+ gh_scm2double (me->get_grob_property ("thickness"));
+ return Lookup::filledbox (Box (Interval (0,w), Interval (-h/2, h/2)));
}
-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)
{
- try_collapse (unsmob_element (smob));
+ try_collapse (unsmob_grob (smob));
return SCM_UNSPECIFIED;
}
void
-System_start_delimiter::try_collapse (Score_element*me)
+System_start_delimiter::try_collapse (Grob*me)
{
- SCM gl = me->get_elt_property ("glyph");
+ SCM gl = me->get_grob_property ("glyph");
- if (scm_ilength (me->get_elt_property ("elements")) <= 1 && gl == ly_symbol2scm ("bar-line"))
+ if (scm_ilength (me->get_grob_property ("elements")) <= 1 && gl == ly_symbol2scm ("bar-line"))
{
me->suicide ();
}
}
-MAKE_SCHEME_CALLBACK(System_start_delimiter,brew_molecule,1);
+MAKE_SCHEME_CALLBACK (System_start_delimiter,brew_molecule,1);
SCM
System_start_delimiter::brew_molecule (SCM smob)
{
- Score_element * me = unsmob_element (smob);
- Interval ext = ly_scm2interval (Axis_group_interface::group_extent_callback (me->self_scm(), gh_int2scm (Y_AXIS)));
- Real l = ext.length ();
- Molecule m;
+ Grob * me = unsmob_grob (smob);
- SCM s = me->get_elt_property ("collapse-height");
- if (gh_number_p (s) && l < gh_scm2double (s))
+ SCM s = me->get_grob_property ("glyph");
+ if (!gh_symbol_p (s))
+ return SCM_EOL;
+
+ SCM c = me->get_grob_property ((ly_symbol2string (s) + "-collapse-height")
+ .ch_C ());
+
+ 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)))
{
- me->suicide();
+ me->suicide ();
return SCM_EOL;
}
- s = me->get_elt_property ("glyph");
- if (!gh_symbol_p(s))
- return SCM_EOL;
-
+ Molecule m;
if (s == ly_symbol2scm ("bracket"))
m = staff_bracket (me,l);
else if (s == ly_symbol2scm ("brace"))
else if (s == ly_symbol2scm ("bar-line"))
m = simple_bar (me,l);
-
m.translate_axis (ext.center (), Y_AXIS);
- return m.create_scheme ();
+ return m.smobbed_copy ();
}
-/*
- Ugh. Suck me plenty.
- */
Molecule
-System_start_delimiter::staff_brace (Score_element*me,Real y)
+System_start_delimiter::staff_brace (Grob*me, Real y)
{
- Real staffht = me->paper_l ()->get_var ("staffheight");
- int staff_size = int (rint (staffht ));
-
- // URG
- Real step = 1.0;
- int minht = 2 * staff_size;
- int maxht = 7 * minht;
- int idx = int (((maxht - step) <? y - minht) / step);
- idx = idx >? 0;
-
- SCM l = scm_assoc (ly_str02scm ("brace"),
- scm_eval2 (ly_symbol2scm ("cmr-alist"), SCM_EOL));
-
- String nm = "feta-braces";
- if (l != SCM_BOOL_F)
- nm = ly_scm2string (gh_cdr (l));
- nm += to_str (staff_size);
- SCM e =gh_list (ly_symbol2scm ("char"), gh_int2scm (idx), SCM_UNDEFINED);
- SCM at = (e);
-
- at = fontify_atom (find_font (nm), at);
+ Font_metric *fm = Font_interface::get_default_font (me);
+ Box b;
+ int lo = 0;
+ int hi = 255; //arg, urg == 0: fm->count () >? 2;
+
+ int big = 1;
+ SCM bigger = gh_list (me->mutable_property_alist_,
+ me->immutable_property_alist_,
+ SCM_UNDEFINED);
+
+ /* do a binary search for each Y, not very efficient, but passable? */
+ do
+ {
+ int cmp = (lo + hi) / 2;
+
+ b = fm->get_char (cmp);
+ if (b[Y_AXIS].empty_b () || b[Y_AXIS].length () > y)
+ {
+ hi = cmp;
+ }
+ else
+ {
+ /*
+ ugh: 7
+ We have four fonts: feta-braces0-3.mf
+
+ In the style-sheet, all paper relative sizes need to start
+ looking at the feta-braces0 font.
+
+ The smallest paper size, feta11 or -3, has to make 5 steps
+ to get to feta26 or +2. Only after that, from +3 to +5 are
+ the real bigger sizes, so worst case we need 8 steps to get
+ to the font we need. */
+ if (big < 8)
+ {
+ bigger = gh_cons (gh_cons (ly_symbol2scm ("font-relative-size"),
+ gh_int2scm (big++)),
+ bigger);
+ me->set_grob_property ("font", bigger);
+ fm = Font_interface::get_default_font (me);
+ lo = 0;
+ hi = 255; //fm->count () >? 2;
+ }
+ else
+ lo = cmp;
+ }
+ }
+ while (hi - lo > 1);
+
+ SCM at = gh_list (ly_symbol2scm ("char"), gh_int2scm (lo), SCM_UNDEFINED);
+ at = fontify_atom (fm, at);
- Box b (Interval (0,0), Interval (-y/2, y/2));
+ b = fm->get_char (lo);
+ b[X_AXIS] = Interval (0,0);
- return Molecule(b, at);
+ return Molecule (b, at);
}