source file of the GNU LilyPond music typesetter
- (c) 2000--2001 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+ (c) 2000--2004 Han-Wen Nienhuys <hanwen@cs.uu.nl>
*/
#include <math.h>
{
Real arc_height = gh_scm2double (me->get_grob_property ("arch-height")) ;
- SCM at = gh_list (ly_symbol2scm ("bracket"),
+ 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 ("bracket-thick"),
+ me->get_grob_property ("thickness"),
SCM_UNDEFINED);
/*
return mol;
}
-void
-System_start_delimiter::set_interface (Grob*me)
-{
- me->set_interface (ly_symbol2scm ("system-start-delimiter-interface"));
-}
-bool
-System_start_delimiter::has_interface (Grob*me)
-{
- return me->has_interface (ly_symbol2scm ("system-start-delimiter-interface"));
-}
Molecule
System_start_delimiter::simple_bar (Grob*me,Real h)
{
- Real w = me->paper_l ()->get_var ("stafflinethickness") *
- gh_scm2double (me->get_grob_property ("thickness"));
- return Lookup::filledbox (Box (Interval (0,w), Interval (-h/2, h/2)));
+ Real lt =me->get_paper ()->get_realvar (ly_symbol2scm ("linethickness")) ;
+ Real w = lt * robust_scm2double (me->get_grob_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);
SCM
System_start_delimiter::after_line_breaking (SCM smob)
{
- try_collapse (unsmob_grob (smob));
- return SCM_UNSPECIFIED;
-}
-
-void
-System_start_delimiter::try_collapse (Grob*me)
-{
+ Grob * me = unsmob_grob (smob);
SCM gl = me->get_grob_property ("glyph");
-
- if (scm_ilength (me->get_grob_property ("elements")) <= 1 && gl == ly_symbol2scm ("bar-line"))
+ if (gh_equal_p (gl,scm_makfrom0str ("bar-line")))
{
- me->suicide ();
- }
+ int count = 0;
+
+ /*
+ Get all coordinates, to trigger Hara kiri.
+ */
+ SCM elts = me->get_grob_property ("elements");
+ Grob *common = common_refpoint_of_list (elts, me, Y_AXIS);
+ for (SCM s = elts; gh_pair_p (s); s = gh_cdr (s))
+ {
+ Interval v = unsmob_grob (gh_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);
-
SCM
System_start_delimiter::brew_molecule (SCM smob)
{
Grob * me = unsmob_grob (smob);
SCM s = me->get_grob_property ("glyph");
- if (!gh_symbol_p (s))
+ if (!gh_string_p (s))
return SCM_EOL;
-
- SCM c = me->get_grob_property ((ly_symbol2string (s) + "-collapse-height")
- .ch_C ());
+ SCM gsym = scm_string_to_symbol (s) ;
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)))
+ if (ext.is_empty ()
+ || (robust_scm2double (me->get_grob_property ("collapse-height"), 0.0) >= l))
{
me->suicide ();
return SCM_EOL;
}
Molecule m;
- if (s == ly_symbol2scm ("bracket"))
+
+ if (gsym== ly_symbol2scm ("bracket"))
m = staff_bracket (me,l);
- else if (s == ly_symbol2scm ("brace"))
+ else if (gsym == ly_symbol2scm ("brace"))
m = staff_brace (me,l);
- else if (s == ly_symbol2scm ("bar-line"))
+ else if (gsym == ly_symbol2scm ("bar-line"))
m = simple_bar (me,l);
m.translate_axis (ext.center (), Y_AXIS);
Molecule
System_start_delimiter::staff_brace (Grob*me, Real y)
{
- Font_metric *fm = Font_interface::get_default_font (me);
- SCM font_defaults = gh_cdr (scm_assoc (ly_symbol2scm ("font-defaults"),
- me->paper_l ()->style_sheet_));
+ Font_metric *fm = 0;
+
+ /* 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"), ly_symbol2scm ("*"));
+
+ SCM alist = scm_list_n (fam, sz, SCM_UNDEFINED);
+ fm = select_font (me->get_paper (), scm_list_n (alist, SCM_UNDEFINED));
+
- Box b;
-#if 0
- b = fm->get_char (0);
- int count = fm->count () >? 2;
-#else
- int count = 255;
-#endif
int lo = 0;
- int hi = count;
- int relative_size = 0;
+
+ int hi = (fm->count () - 1) >? 2;
+ Box b;
/* 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
- lo = cmp;
-
- if (lo == count - 1 && b[Y_AXIS].length () < y && relative_size < 10)
- {
- /*
- 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 +8 are
- the real bigger sizes, so worst case we need 11 steps to get
- to the font we need. */
- fm = Font_interface::get_font
- (me,
- gh_list (gh_list (gh_cons (ly_symbol2scm ("font-relative-size"),
- gh_int2scm (++relative_size)),
- SCM_UNDEFINED),
- me->mutable_property_alist_,
- me->immutable_property_alist_,
- font_defaults,
- SCM_UNDEFINED));
-#if 0
- b = fm->get_char (0);
- count = fm->count () >? 2;
-#else
- count = 255;
-#endif
- lo = 0;
- hi = count;
- }
- }
+ {
+ int cmp = (lo + hi) / 2;
+ 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);
-
- // uRGURGU, why doesn't the height calculation work out??
- SCM weird = me->get_grob_property ("weird");
- if (gh_number_p (weird))
- lo += gh_scm2int (weird);
- SCM at = gh_list (ly_symbol2scm ("char"), gh_int2scm (lo), SCM_UNDEFINED);
- at = fontify_atom (fm, at);
-
- b = fm->get_char (lo);
+
+ Molecule m (fm->get_indexed_char_molecule (lo)); // ugh. ascii?
+ b=m.extent_box();
b[X_AXIS] = Interval (0,0);
- return Molecule (b, at);
+ return Molecule (b, m.get_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");
projects / lilypond.git / blobdiff