source file of the GNU LilyPond music typesetter
- (c) 1997--2002 Jan Nieuwenhuizen <janneke@gnu.org>
+ (c) 1997--2003 Jan Nieuwenhuizen <janneke@gnu.org>
*/
/*
#include <math.h>
+#include "line-interface.hh"
#include "beam.hh"
#include "box.hh"
-#include "debug.hh"
+#include "warn.hh"
#include "font-interface.hh"
#include "molecule.hh"
#include "paper-def.hh"
static Grob*
get_x_bound_grob (Grob *g, Direction my_dir)
{
- if (Note_column::stem_l (g)
+ if (Note_column::get_stem (g)
&& Note_column::dir (g) == my_dir)
{
- g = Note_column::stem_l (g);
+ g = Note_column::get_stem (g);
}
return g;
}
Grob*
-Tuplet_bracket::parallel_beam (Grob *me, Link_array<Grob> cols, bool *equally_long)
+Tuplet_bracket::parallel_beam (Grob *me, Link_array<Grob> const &cols, bool *equally_long)
{
/*
ugh: code dup.
*/
- Grob *s1 = Note_column::stem_l (cols[0]);
- Grob *s2 = Note_column::stem_l (cols.top());
+ Grob *s1 = Note_column::get_stem (cols[0]);
+ Grob *s2 = Note_column::get_stem (cols.top());
- Grob*b1 = s1 ? Stem::beam_l (s1) : 0;
- Grob*b2 = s2 ? Stem::beam_l (s2) : 0;
+ Grob*b1 = s1 ? Stem::get_beam (s1) : 0;
+ Grob*b2 = s2 ? Stem::get_beam (s2) : 0;
Spanner*sp = dynamic_cast<Spanner*> (me);
*equally_long= false;
- if (! ( b1 && (b1 == b2) && !sp->broken_b() ))
+ if (! (b1 && (b1 == b2) && !sp->broken_b()))
return 0;
Link_array<Grob> beam_stems = Pointer_group_interface__extract_grobs
(b1, (Grob*)0, "stems");
+ if (beam_stems.size() == 0)
+ {
+ programming_error ("Beam under tuplet bracket has no stems!");
+ *equally_long = 0;
+ return 0;
+ }
*equally_long = (beam_stems[0] == s1 && beam_stems.top() == s2);
return b1;
{
Grob *me= unsmob_grob (smob);
Molecule mol;
- Link_array<Grob> column_arr=
+ Link_array<Grob> columns=
Pointer_group_interface__extract_grobs (me, (Grob*)0, "note-columns");
- if (!column_arr.size ())
+ if (!columns.size ())
return mol.smobbed_copy ();
+
+
+ {
+ SCM lp = me->get_grob_property ("left-position");
+ SCM rp = me->get_grob_property ("right-position");
+
+ if (!gh_number_p (rp) || !gh_number_p (lp))
+ after_line_breaking (smob);
+ }
+
+ Real ly = robust_scm2double (me->get_grob_property ("left-position"), 0);
+ Real ry = robust_scm2double (me->get_grob_property ("right-position"), 0);
+
bool equally_long = false;
- Grob * par_beam = parallel_beam (me, column_arr, &equally_long);
+ Grob * par_beam = parallel_beam (me, columns, &equally_long);
Spanner*sp = dynamic_cast<Spanner*> (me);
else if (numb == ly_symbol2scm ("if-no-beam"))
number_visibility = !par_beam;
- Grob * commonx = column_arr[0]->common_refpoint (column_arr.top (),X_AXIS);
- Direction dir = Directional_element_interface::get (me);
+ Grob * commonx = columns[0]->common_refpoint (columns.top (),X_AXIS);
- Grob * lgr = get_x_bound_grob (column_arr[0], dir);
- Grob * rgr = get_x_bound_grob (column_arr.top(), dir);
+ /*
+ Tuplet brackets are normally not broken, but we shouldn't crash if
+ they are.
+ */
+ commonx = commonx->common_refpoint (sp->get_bound(LEFT), X_AXIS);
+ commonx = commonx->common_refpoint (sp->get_bound(RIGHT), X_AXIS);
+
+ Direction dir = get_grob_direction (me);
+
+ Grob * lgr = get_x_bound_grob (columns[0], dir);
+ Grob * rgr = get_x_bound_grob (columns.top(), dir);
Real x0 = lgr->extent (commonx,X_AXIS)[LEFT];
Real x1 = rgr->extent (commonx,X_AXIS)[RIGHT];
Real w = x1 -x0;
-
- Real ly = gh_scm2double (me->get_grob_property ("left-position"));
- Real ry = gh_scm2double (me->get_grob_property ("right-position"));
- SCM number = me->get_grob_property ("text");
+ SCM number = me->get_grob_property ("text");
+
+ Paper_def *pap = me->get_paper ();
if (gh_string_p (number) && number_visibility)
{
SCM properties = Font_interface::font_alist_chain (me);
- Molecule num = Text_item::text2molecule (me, number, properties);
+ SCM snum = Text_item::interpret_markup (pap->self_scm (), properties, number);
+ Molecule num = *unsmob_molecule (snum);
num.align_to (X_AXIS, CENTER);
num.translate_axis (w/2, X_AXIS);
num.align_to (Y_AXIS, CENTER);
mol.add_molecule (num);
}
-
- if (bracket_visibility)
+
+
+ /*
+ No bracket when it would be smaller than the number.
+
+ TODO: should use GAP in calculation too.
+ */
+ if (bracket_visibility && number_visibility
+ && mol.extent (X_AXIS).length () > w)
{
- Real lt = me->paper_l ()->get_var ("linethickness");
+ bracket_visibility = false;
+ }
- SCM thick = me->get_grob_property ("thickness");
- if (gh_number_p (thick))
- lt *= gh_scm2double (thick);
-
+ if (bracket_visibility)
+ {
SCM gap = me->get_grob_property ("gap");
-
- Real prot_size = 0.7; // magic.
-
- Molecule brack = make_bracket (Y_AXIS,
- w, ry-ly, lt,
- -prot_size*dir, -prot_size*dir,
+
+ SCM fl = me->get_grob_property ("bracket-flare");
+ SCM eh = me->get_grob_property ("edge-height");
+ SCM sp = me->get_grob_property ("shorten-pair");
+
+ Direction d = LEFT;
+ Drul_array<Real> height, flare, shorten;
+ do {
+ flare[d] = height[d] = shorten[d] = 0.0;
+ if (is_number_pair (fl))
+ flare[d] += gh_scm2double (index_get_cell (fl, d));
+ if (is_number_pair (eh))
+ height[d] += gh_scm2double (index_get_cell (eh, d)) * - dir;
+ if (is_number_pair (sp))
+ shorten[d] += gh_scm2double (index_get_cell (sp, d));
+ }
+ while (flip (&d) != LEFT);
+
+ Molecule brack = make_bracket (me, Y_AXIS,
+ Offset (w, ry - ly),
+ height,
gh_scm2double (gap),
- 0.0, 0.0);
+ flare,
+ shorten);
mol.add_molecule (brack);
}
-
+
mol.translate_axis (ly, Y_AXIS);
mol.translate_axis (x0 - sp->get_bound (LEFT)->relative_coordinate (commonx,X_AXIS),X_AXIS);
return mol.smobbed_copy ();
/*
should move to lookup?
+
+ TODO: this will fail for very short (shorter than the flare)
+ brackets.
*/
Molecule
-Tuplet_bracket::make_bracket (Axis protusion_axis,
- Real dx, Real dy, Real thick, Real lprotrusion,
- Real rprotrusion, Real gap, Real left_widen,
- Real right_widen)
+Tuplet_bracket::make_bracket (Grob *me, // for line properties.
+ Axis protusion_axis,
+ Offset dz,
+ Drul_array<Real> height,
+ Real gap,
+ Drul_array<Real> flare,
+ Drul_array<Real> shorten)
{
- Real len = Offset (dx,dy).length ();
- Real gapx = dx* (gap / len);
- Real gapy = dy* (gap / len);
- Axis other = other_axis (protusion_axis);
-
- Molecule l1 = Lookup::line (thick, Offset(0,0),
- Offset ( (dx - gapx)/2, (dy - gapy)/2 ));
- Molecule l2 = Lookup::line (thick, Offset((dx + gapx) / 2,(dy + gapy) / 2),
-
- Offset (dx,dy));
-
- Offset protusion;
- protusion[other] = left_widen;
- protusion[protusion_axis] = lprotrusion;
+ Drul_array<Offset> corners (Offset(0,0), dz);
+
+ Real length = dz.length ();
+ Drul_array<Offset> gap_corners;
+
- Molecule p1 = Lookup::line (thick, Offset(0,0), protusion);
+ Axis bracket_axis = other_axis (protusion_axis);
- protusion[other] = right_widen;
- protusion[protusion_axis] = rprotrusion;
- Molecule p2 = Lookup::line (thick, Offset(dx,dy),Offset(dx,dy) + protusion);
+ Drul_array<Offset> straight_corners = corners;
+ Direction d = LEFT;
+ do {
+ straight_corners[d] += - d * shorten[d] /length * dz;
+ gap_corners[d] = (dz * 0.5) + d * gap / length * dz;
+ } while (flip (&d) != LEFT);
+
+ Drul_array<Offset> flare_corners = straight_corners;
+ do {
+ flare_corners[d][bracket_axis] = straight_corners[d][bracket_axis];
+ flare_corners[d][protusion_axis] += height[d];
+ straight_corners[d][bracket_axis] += - d * flare[d];
+ } while (flip (&d) != LEFT);
Molecule m;
- m.add_molecule (p1);
- m.add_molecule (p2);
- m.add_molecule (l1);
- m.add_molecule (l2);
+ do {
+ m.add_molecule (Line_interface::line (me, straight_corners[d],
+ gap_corners[d]));
+
+ m.add_molecule (Line_interface::line (me, straight_corners[d],
+ flare_corners[d]));
+ } while (flip (&d) != LEFT);
return m;
}
void
Tuplet_bracket::calc_position_and_height (Grob*me,Real *offset, Real * dy)
{
- Link_array<Grob> column_arr=
+ Link_array<Grob> columns=
Pointer_group_interface__extract_grobs (me, (Grob*)0, "note-columns");
- Grob * commony = me->common_refpoint (me->get_grob_property ("note-columns"), Y_AXIS);
- Grob * commonx = me->common_refpoint (me->get_grob_property ("note-columns"), X_AXIS);
+ SCM cols = me->get_grob_property ("note-columns");
+ Grob * commony = common_refpoint_of_list (cols, me, Y_AXIS);
+ Grob * commonx = common_refpoint_of_list (cols, me, X_AXIS);
+
+ Interval staff;
+
+ if (Grob * st = Staff_symbol_referencer::get_staff_symbol (me))
+ staff = st->extent (commony, Y_AXIS);
- Direction dir = Directional_element_interface::get (me);
+ Direction dir = get_grob_direction (me);
/*
Use outer non-rest columns to determine slope
*/
int l = 0;
- while (l <column_arr.size () && Note_column::rest_b (column_arr[l]))
+ while (l <columns.size () && Note_column::rest_b (columns[l]))
l ++;
- int r = column_arr.size ()- 1;
- while (r >= l && Note_column::rest_b (column_arr[r]))
+ int r = columns.size ()- 1;
+ while (r >= l && Note_column::rest_b (columns[r]))
r--;
if (l < r)
{
- *dy = column_arr[r]->extent (commony, Y_AXIS) [dir]
- - column_arr[l]->extent (commony, Y_AXIS) [dir] ;
+ Interval rv =columns[r]->extent (commony, Y_AXIS);
+ Interval lv =columns[l]->extent (commony, Y_AXIS);
+ rv.unite (staff);
+ lv.unite (staff);
+ Real graphical_dy = rv[dir] - lv[dir];
+
+ Slice ls = Note_column::head_positions_interval (columns[l]);
+ Slice rs = Note_column::head_positions_interval (columns[r]);
+
+ Interval musical_dy;
+ musical_dy[UP] = rs[UP] - ls[UP];
+ musical_dy[DOWN] = rs[DOWN] - ls[DOWN];
+ if (sign (musical_dy[UP]) != sign (musical_dy[DOWN]))
+ *dy = 0.0;
+ else if (sign (graphical_dy) != sign (musical_dy[DOWN]))
+ *dy = 0.0;
+ else
+ *dy = graphical_dy;
}
else
* dy = 0;
*offset = - dir * infinity_f;
- if (!column_arr.size ())
+ if (!columns.size ())
return;
- Grob * lgr = get_x_bound_grob (column_arr[0], dir);
- Grob * rgr = get_x_bound_grob (column_arr.top(), dir);
+ Grob * lgr = get_x_bound_grob (columns[0], dir);
+ Grob * rgr = get_x_bound_grob (columns.top(), dir);
Real x0 = lgr->extent (commonx,X_AXIS)[LEFT];
Real x1 = rgr->extent (commonx,X_AXIS)[RIGHT];
- /*
- Slope.
- */
- Real factor = column_arr.size () > 1 ? 1/ (x1 - x0) : 1.0;
+ /*
+ Slope.
+ */
+ Real factor = columns.size () > 1 ? 1/ (x1 - x0) : 1.0;
- for (int i = 0; i < column_arr.size (); i++)
+ for (int i = 0; i < columns.size (); i++)
{
- Real notey = column_arr[i]->extent (commony, Y_AXIS)[dir]
- - me->relative_coordinate (commony, Y_AXIS);
-
- Real x = column_arr[i]->relative_coordinate (commonx, X_AXIS) - x0;
+ Interval note_ext =columns[i]->extent (commony, Y_AXIS);
+ note_ext.unite (staff);
+ Real notey = note_ext[dir] - me->relative_coordinate (commony, Y_AXIS);
+
+ Real x = columns[i]->relative_coordinate (commonx, X_AXIS) - x0;
Real tuplety = *dy * x * factor;
if (notey * dir > (*offset + tuplety) * dir)
/*
horizontal brackets should not collide with staff lines.
+
*/
- if (*dy == 0)
+ Real ss= Staff_symbol_referencer::staff_space (me);
+ if (*dy == 0 && fabs (*offset) < ss * Staff_symbol_referencer::staff_radius (me))
{
// quantize, then do collision check.
- Real ss= Staff_symbol_referencer::staff_space (me);
*offset *= 2 / ss;
*offset = rint (*offset);
}
-/*
- use first -> last note for slope,
-*/
-void
-Tuplet_bracket::calc_dy (Grob*me,Real * dy)
-{
- Link_array<Grob> column_arr=
- Pointer_group_interface__extract_grobs (me, (Grob*)0, "note-columns");
-
- /*
- ugh. refps.
- */
- Direction d = Directional_element_interface::get (me);
- *dy = column_arr.top ()->extent (column_arr.top (), Y_AXIS) [d]
- - column_arr[0]->extent (column_arr[0], Y_AXIS) [d];
-}
/*
Tuplet_bracket::before_line_breaking (SCM smob)
{
Grob *me = unsmob_grob (smob);
- Link_array<Grob> column_arr=
+ Link_array<Grob> columns=
Pointer_group_interface__extract_grobs (me, (Grob*)0, "note-columns");
- for (int i = column_arr.size(); i--;)
+ for (int i = columns.size(); i--;)
{
- Grob * s =Note_column::stem_l (column_arr[i]);
- Grob * b = s ? Stem::beam_l (s): 0;
+ Grob * s =Note_column::get_stem (columns[i]);
+ Grob * b = s ? Stem::get_beam (s): 0;
if (b)
me->add_dependency (b);
}
Tuplet_bracket::after_line_breaking (SCM smob)
{
Grob * me = unsmob_grob (smob);
- Link_array<Grob> column_arr=
+ Link_array<Grob> columns=
Pointer_group_interface__extract_grobs (me, (Grob*)0, "note-columns");
- if (!column_arr.size ())
+ if (!columns.size ())
{
me->suicide ();
return SCM_UNSPECIFIED;
}
if (dynamic_cast<Spanner*> (me)->broken_b ())
{
- me->warning ( "Tuplet_bracket was across linebreak. Farewell cruel world.");
+ me->warning (_("Killing tuplet bracket across linebreak."));
me->suicide();
return SCM_UNSPECIFIED;
}
- Direction dir = Directional_element_interface::get (me);
+ Direction dir = get_grob_direction (me);
if (!dir)
{
dir = Tuplet_bracket::get_default_dir (me);
- Directional_element_interface::set (me, dir);
+ set_grob_direction (me, dir);
}
bool equally_long = false;
- Grob * par_beam = parallel_beam (me, column_arr, &equally_long);
+ Grob * par_beam = parallel_beam (me, columns, &equally_long);
+ /*
+ We follow the beam only if there is one, and we are next to it.
+ */
Real dy, offset;
- if (!par_beam)
+ if (!par_beam
+ || get_grob_direction (par_beam) != dir)
{
calc_position_and_height (me,&offset,&dy);
}
}
-bool
-Tuplet_bracket::has_interface (Grob*me)
-{
- return me->has_interface (ly_symbol2scm ("tuplet-bracket-interface"));
-}
ADD_INTERFACE (Tuplet_bracket,"tuplet-bracket-interface",
"A bracket with a number in the middle, used for tuplets.",
- "note-columns padding gap left-position right-position bracket-visibility number-visibility thickness direction");
+ "note-columns bracket-flare edge-height shorten-pair padding gap left-position right-position bracket-visibility number-visibility thickness direction");
projects / lilypond.git / blobdiff