TODO: This is way too hairy
*/
+
#include <math.h> // m_pi
#include "lookup.hh"
#include "group-interface.hh"
#include "staff-symbol-referencer.hh"
#include "spanner.hh"
-
+#include "side-position-interface.hh"
void
-Stem::set_beaming (Grob*me ,int i, Direction d )
+Stem::set_beaming (Grob*me ,int i, Direction d)
{
SCM pair = me->get_grob_property ("beaming");
Drul_array<Grob*> e (extremal_heads (me));
return Interval (Staff_symbol_referencer::position_f (e[DOWN]),
- Staff_symbol_referencer::position_f ( e[UP]));
+ Staff_symbol_referencer::position_f (e[UP]));
}
Real
Stem::chord_start_f (Grob*me)
{
- return head_positions(me)[get_direction (me)]
+ return head_positions (me)[get_direction (me)]
* Staff_symbol_referencer::staff_space (me)/2.0;
}
// todo: margins
Direction d= get_direction (me);
- if (d && d * head_positions(me)[get_direction (me)] >= se*d)
+ if (d && d * head_positions (me)[get_direction (me)] >= se*d)
warning (_ ("Weird stem size; check for narrow beams"));
me->set_grob_property ("stem-end-position", gh_double2scm (se));
UGH.
*/
- return unsmob_grob (gh_car (me->get_grob_property ("heads")));
+ return unsmob_grob (ly_car (me->get_grob_property ("heads")));
}
else
return first_head (me);
Drul_array<Grob *> exthead;
exthead[LEFT] = exthead[RIGHT] =0;
- for (SCM s = me->get_grob_property ("heads"); gh_pair_p (s); s = gh_cdr (s))
+ for (SCM s = me->get_grob_property ("heads"); gh_pair_p (s); s = ly_cdr (s))
{
- Grob * n = unsmob_grob (gh_car (s));
+ Grob * n = unsmob_grob (ly_car (s));
- int p = int(Staff_symbol_referencer::position_f (n));
+ int p = int (Staff_symbol_referencer::position_f (n));
Direction d = LEFT;
do {
return exthead;
}
+static int
+icmp (int const &a, int const &b)
+{
+ return a-b;
+}
+
+Array<int>
+Stem::note_head_positions (Grob *me)
+{
+ Array<int> ps ;
+ for (SCM s = me->get_grob_property ("heads"); gh_pair_p (s); s = ly_cdr (s))
+ {
+ Grob * n = unsmob_grob (ly_car (s));
+ int p = int (Staff_symbol_referencer::position_f (n));
+
+ ps.push (p);
+ }
+
+ ps.sort (icmp);
+ return ps;
+}
+
+
void
Stem::add_head (Grob*me, Grob *n)
{
if (Note_head::has_interface (n))
{
- Pointer_group_interface::add_element (me, "heads",n);
+ Pointer_group_interface::add_element (me, ly_symbol2scm ("heads"), n);
}
else
{
bool
Stem::invisible_b (Grob*me)
{
- return !(heads_i (me) && Rhythmic_head::balltype_i (support_head (me)) >= 1);
+ return ! (heads_i (me) && Rhythmic_head::balltype_i (support_head (me)) >= 1);
}
int
Stem::get_center_distance (Grob*me, Direction d)
{
int staff_center = 0;
- int distance = (int) (d*(head_positions(me)[d] - staff_center));
+ int distance = (int) (d* (head_positions (me)[d] - staff_center));
return distance >? 0;
}
if (sign (dd - du))
return Direction (sign (dd -du));
- return to_dir (me->get_grob_property ("default-neutral-direction"));
+ return to_dir (me->get_grob_property ("neutral-direction"));
}
Real
Array<Real> a;
Real length_f = 0.;
- SCM scm_len = me->get_grob_property("length");
+ SCM scm_len = me->get_grob_property ("length");
if (gh_number_p (scm_len))
{
length_f = gh_scm2double (scm_len);
}
else
{
- s = me->get_grob_property("lengths");
- for (SCM q = s; q != SCM_EOL; q = gh_cdr (q))
- a.push (gh_scm2double (gh_car (q)));
+ s = me->get_grob_property ("lengths");
+ for (SCM q = s; q != SCM_EOL; q = ly_cdr (q))
+ a.push (gh_scm2double (ly_car (q)));
// stem uses half-spaces
- length_f = a[((flag_i (me) - 2) >? 0) <? (a.size () - 1)] * 2;
+ length_f = a[ ((flag_i (me) - 2) >? 0) <? (a.size () - 1)] * 2;
}
a.clear ();
s = me->get_grob_property ("stem-shorten");
- for (SCM q = s; gh_pair_p (q); q = gh_cdr (q))
- a.push (gh_scm2double (gh_car (q)));
+ for (SCM q = s; gh_pair_p (q); q = ly_cdr (q))
+ a.push (gh_scm2double (ly_car (q)));
// stem uses half-spaces
- // fixme: use gh_list_ref () iso. array[]
- Real shorten_f = a[((flag_i (me) - 2) >? 0) <? (a.size () - 1)] * 2;
+ // fixme: use scm_list_n_ref () iso. array[]
+ Real shorten_f = a[ ((flag_i (me) - 2) >? 0) <? (a.size () - 1)] * 2;
/* URGURGURG
'set-default-stemlen' sets direction too
stems in unnatural (forced) direction should be shortened,
according to [Roush & Gourlay]
*/
- if (((int)chord_start_f (me))
+ if (( (int)chord_start_f (me))
&& (get_direction (me) != get_default_dir (me)))
length_f -= shorten_f;
+ Interval hp = head_positions (me);
+ Real st = hp[dir] + dir * length_f;
+
- Real st = head_positions(me)[dir] + dir * length_f;
- bool no_extend_b = to_boolean (me->get_grob_property ("no-stem-extend"));
+
+ /*
+ Make a little room if we have a flag and there is a dot.
+
+ TODO:
+
+ maybe we should consider moving the dot to the right?
+ */
+ if (!beam_l (me)
+ && flag_i (me))
+ {
+ Grob * closest_to_flag = extremal_heads (me)[dir];
+ Grob * dots = closest_to_flag
+ ? Rhythmic_head::dots_l (closest_to_flag ) : 0;
+
+ if (dots)
+ {
+ Real dp = Staff_symbol_referencer::position_f (dots);
+ Real flagy = flag (me).extent (Y_AXIS)[-dir] * 2; // should divide by staffspace
+
+ /*
+ Very gory: add myself to the X-support of the parent,
+ which should be a dot-column.
+ */
+ if (dir * (st + flagy - dp) < 0.5)
+ Side_position_interface::add_support (dots->get_parent (X_AXIS), me);
+
+ /*
+ previous approach was to lengthen the stem. This is not
+ good typesetting practice. */
+ }
+ }
+
+
+ bool no_extend_b = to_boolean (me->get_grob_property ("no-stem-extend"));
if (!grace_b && !no_extend_b && dir * st < 0) // junkme?
st = 0.0;
return st;
}
+
+
/*
Number of hooks on the flag, ie. the log of the duration.
*/
Stem::flag_i (Grob*me)
{
SCM s = me->get_grob_property ("duration-log");
- return (gh_number_p (s)) ? gh_scm2int (s) : 2;
+ return (gh_number_p (s)) ? gh_scm2int (s) : 2;
}
void
Grob *hed = support_head (me);
- Real w = hed->extent (hed, X_AXIS)[dir];
+ Real w = Note_head::head_extent (hed,X_AXIS)[dir];
for (int i=0; i < heads.size (); i++)
{
- heads[i]->translate_axis (w - heads[i]->extent (heads[i], X_AXIS)[dir], X_AXIS);
+ heads[i]->translate_axis (w - Note_head::head_extent (heads[i],X_AXIS)[dir],
+ X_AXIS);
}
bool parity= true; // todo: make me settable.
}
}
-MAKE_SCHEME_CALLBACK(Stem,before_line_breaking,1);
+MAKE_SCHEME_CALLBACK (Stem,before_line_breaking,1);
SCM
Stem::before_line_breaking (SCM smob)
{
if (invisible_b (me))
{
me->remove_grob_property ("molecule-callback");
- // suicide();
+ // suicide ();
}
set_spacing_hints (me);
{
Axis a = (Axis)gh_scm2int (ax);
Grob * me = unsmob_grob (smob);
- assert ( a == Y_AXIS);
+ assert (a == Y_AXIS);
SCM mol = me->get_uncached_molecule ();
Interval iv;
Item* item = dynamic_cast<Item*> (me);
Item * col = item->column_l ();
SCM dirlist =col->get_grob_property ("dir-list");
- if (scm_sloppy_memq (scmdir, dirlist) == SCM_BOOL_F)
+ if (scm_c_memq (scmdir, dirlist) == SCM_BOOL_F)
{
dirlist = gh_cons (scmdir, dirlist);
col->set_grob_property ("dir-list", dirlist);
Molecule
Stem::flag (Grob*me)
{
- String style;
- SCM st = me->get_grob_property ("flag-style");
- if ( gh_string_p (st))
+ /* TODO: rename flag-style into something more appropriate,
+ e.g. "stroke-style", maybe with values "" (i.e. no stroke),
+ "single" and "double". Needs more discussion.
+ */
+ String style, fstyle, staffline_offs;
+ SCM fst = me->get_grob_property ("flag-style");
+ if (gh_string_p (fst))
{
- style = ly_scm2string (st);
+ fstyle = ly_scm2string (fst);
}
+ SCM st = me->get_grob_property ("style");
+ if (gh_symbol_p (st))
+ {
+ style = (ly_scm2string (scm_symbol_to_string (st)));
+ }
+ else
+ {
+ style = "";
+ }
+ if (String::compare_i (style, "mensural") == 0)
+ /* Mensural notation: For notes on staff lines, use different
+ flags than for notes between staff lines. The idea is that
+ flags are always vertically aligned with the staff lines,
+ regardless if the note head is on a staff line or between two
+ staff lines. In other words, the inner end of a flag always
+ touches a staff line.
+ */
+ {
+ /* Urrgh! We have to detect wether this stem ends on a staff
+ line or between two staff lines. But we can not call
+ stem_end_position(me) or get_default_stem_end_position(me),
+ since this encounters the flag and hence results in an
+ infinite recursion. However, in pure mensural notation,
+ there are no multiple note heads attached to a single stem,
+ neither is there usually need for using the stem_shorten
+ property (except for 32th and 64th notes, but that is not a
+ problem since the stem length in this case is augmented by
+ an integral multiple of staff_space). Hence, it should be
+ sufficient to just take the first note head, assume it's
+ the only one, look if it's on a staff line, and select the
+ flag's shape accordingly. In the worst case, the shape
+ looks slightly misplaced, but that will usually be the
+ programmer's fault (e.g. when trying to attach multiple
+ note heads to a single stem in mensural notation).
+
+ */
+ Grob *first = first_head(me);
+ int sz = Staff_symbol_referencer::line_count (me)-1;
+ int p = (int)rint (Staff_symbol_referencer::position_f (first));
+ staffline_offs = (((p ^ sz) & 0x1) == 0) ? "1" : "0";
+ }
+ else
+ {
+ staffline_offs = "";
+ }
char c = (get_direction (me) == UP) ? 'u' : 'd';
- Molecule m = Font_interface::get_default_font (me)->find_by_name (String ("flags-") + to_str (c) +
- to_str (flag_i (me)));
- if (!style.empty_b ())
- m.add_molecule(Font_interface::get_default_font (me)->find_by_name (String ("flags-") + to_str (c) + style));
+ String index_str
+ = String ("flags-") + style + to_str (c) + staffline_offs + to_str (flag_i (me));
+ Molecule m
+ = Font_interface::get_default_font (me)->find_by_name (index_str);
+ if (!fstyle.empty_b ())
+ m.add_molecule (Font_interface::get_default_font (me)->find_by_name (String ("flags-") + to_str (c) + fstyle));
return m;
}
-MAKE_SCHEME_CALLBACK(Stem,dim_callback,2);
+MAKE_SCHEME_CALLBACK (Stem,dim_callback,2);
SCM
Stem::dim_callback (SCM e, SCM ax)
{
{
r = flag (se).extent (X_AXIS);
}
- return ly_interval2scm ( r);
+ return ly_interval2scm (r);
}
+
-
-MAKE_SCHEME_CALLBACK(Stem,brew_molecule,1);
+MAKE_SCHEME_CALLBACK (Stem,brew_molecule,1);
SCM
Stem::brew_molecule (SCM smob)
Real y1 = Staff_symbol_referencer::position_f (first_head (me));
Real y2 = stem_end_position (me);
- Interval stem_y(y1,y2);
- stem_y.unite (Interval (y2,y1));
+ Interval stem_y (y1 <? y2,y2 >? y1);
- Real dy = Staff_symbol_referencer::staff_space (me)/2.0;
- Real head_wid = 0;
- Real angle =0.0;
+ // dy?
+ Real dy = Staff_symbol_referencer::staff_space (me) * 0.5;
+
if (Grob *hed = support_head (me))
{
- head_wid = hed->extent (hed,X_AXIS).length ();
+ /*
+ must not take ledgers into account.
+ */
+ Interval head_height = Note_head::head_extent (hed,Y_AXIS);
+ Real y_attach = Note_head::stem_attachment_coordinate ( hed, Y_AXIS);
- angle = gh_scm2double (hed->get_grob_property ("attachment-angle"));
+ y_attach = head_height.linear_combination (y_attach);
+ stem_y[Direction (-d)] += d * 2*y_attach;
}
- stem_y[Direction(-d)] += d * head_wid * tan(angle)/(2*dy);
if (!invisible_b (me))
{
- Real stem_width = gh_scm2double (me->get_grob_property ("thickness")) * me->paper_l ()->get_var ("stafflinethickness");
+ Real stem_width = gh_scm2double (me->get_grob_property ("thickness"))
+ // URG
+ * me->paper_l ()->get_var ("stafflinethickness");
+
Molecule ss =Lookup::filledbox (Box (Interval (-stem_width/2, stem_width/2),
Interval (stem_y[DOWN]*dy, stem_y[UP]*dy)));
mol.add_molecule (ss);
if (!beam_l (me) && abs (flag_i (me)) > 2)
{
Molecule fl = flag (me);
- fl.translate_axis(stem_y[d]*dy, Y_AXIS);
+ fl.translate_axis (stem_y[d]*dy, Y_AXIS);
mol.add_molecule (fl);
}
/*
move the stem to right of the notehead if it is up.
*/
-MAKE_SCHEME_CALLBACK(Stem,off_callback,2);
+MAKE_SCHEME_CALLBACK (Stem,off_callback,2);
SCM
-Stem::off_callback (SCM element_smob, SCM )
+Stem::off_callback (SCM element_smob, SCM)
{
Grob *me = unsmob_grob (element_smob);
Real r=0;
if (Grob * f = first_head (me))
{
- Interval head_wid(0, f->extent (f,X_AXIS).length ());
+ Interval head_wid = Note_head::head_extent(f, X_AXIS);
+
+ Real attach =
+ Note_head::stem_attachment_coordinate(f, X_AXIS);
- if (to_boolean (me->get_grob_property ("stem-centered")))
- return gh_double2scm ( head_wid.center ());
-
- Real rule_thick = gh_scm2double (me->get_grob_property ("thickness")) * me->paper_l ()->get_var ("stafflinethickness");
Direction d = get_direction (me);
- r = head_wid[d] - d * rule_thick * 0.5;
+
+ Real real_attach = head_wid.linear_combination (d * attach);
+
+ r = real_attach;
+
+ /*
+ If not centered: correct for stem thickness.
+ */
+ if (attach)
+ {
+ Real rule_thick
+ = gh_scm2double (me->get_grob_property ("thickness"))
+ * me->paper_l ()->get_var ("stafflinethickness");
+
+
+ r += - d * rule_thick * 0.5;
+ }
}
return gh_double2scm (r);
}
Array<Real> a;
SCM s;
- s = me->get_grob_property("beamed-minimum-lengths");
+ s = me->get_grob_property ("beamed-minimum-lengths");
a.clear ();
- for (SCM q = s; q != SCM_EOL; q = gh_cdr (q))
- a.push (gh_scm2double (gh_car (q)));
+ for (SCM q = s; q != SCM_EOL; q = ly_cdr (q))
+ a.push (gh_scm2double (ly_car (q)));
Real minimum_length = a[multiplicity <? (a.size () - 1)] * staff_space;
s = me->get_grob_property ("beamed-lengths");
- a.clear();
- for (SCM q = s; q != SCM_EOL; q = gh_cdr (q))
- a.push (gh_scm2double (gh_car (q)));
+ a.clear ();
+ for (SCM q = s; q != SCM_EOL; q = ly_cdr (q))
+ a.push (gh_scm2double (ly_car (q)));
Real stem_length = a[multiplicity <? (a.size () - 1)] * staff_space;
Grob *common = me->common_refpoint (beam, Y_AXIS);
Real interstaff_f = beam_dir *
- (me->relative_coordinate (common, Y_AXIS)
+ (me->relative_coordinate (common, Y_AXIS)
- beam->relative_coordinate (common, Y_AXIS));
info.idealy_f_ += interstaff_f;
projects / lilypond.git / blobdiff