X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=lily%2Fnote-head.cc;h=23f407622f1e4044055c34bb0f6a7a346660f1b4;hb=b0722af04579cd67f38c3f3ac51762d186614664;hp=10cb7b1c2518df970620ddd0f609c3b71448ff28;hpb=3b9a2f280fb4dafdd3dfc69c7c5d6cb7b3818664;p=lilypond.git diff --git a/lily/note-head.cc b/lily/note-head.cc index 10cb7b1c25..23f407622f 100644 --- a/lily/note-head.cc +++ b/lily/note-head.cc @@ -3,89 +3,251 @@ source file of the GNU LilyPond music typesetter - (c) 1997--1998 Han-Wen Nienhuys + (c) 1997--2002 Han-Wen Nienhuys */ +#include +#include #include "misc.hh" #include "dots.hh" #include "note-head.hh" #include "debug.hh" -#include "paper-def.hh" -#include "lookup.hh" +#include "font-interface.hh" #include "molecule.hh" #include "musical-request.hh" +#include "rhythmic-head.hh" +#include "staff-symbol-referencer.hh" +#include "lookup.hh" +#include "paper-def.hh" + +/* + Note_head contains the code for printing note heads. + + Ledger lines: + + It also contains the ledger lines, for historical reasons. Ledger + lines are somewhat of a PITA. In some cases, they take up no space, in + some cases they don't: + + DO take space: + + - when ledgered notes are juxtaposed: there should be some white + space between the ledger lines. + + - when accidentals are near: the accidentals should not be on the + ledger lines + + [both tips by Heinz Stolba from Universal Edition]. + + DO NOT take space into account: + + - for basically everything else, e.g. swapping ledgered notes on + clustered chords, spacing between ledgered and unledgered notes. + + TODO: fix this. It is not feasible to have a special grob for + ledgers, since you basically don't know if there will be ledgers, + unless you know at interpretation phase already 1. the Y-position, + 2. the number of staff lines. It's not yet specced when both pieces + of information are there, so for now, it is probably better to build + special support for ledgers into the accidental and separation-item + code. + + (Besides a separate ledger seems overkill. For what else would + it be useful?) +*/ -Note_head::Note_head () +Molecule +Note_head::brew_ledger_lines (Grob *me, + int pos, + int interspaces, + Interval x_extent, + bool take_space) { - x_dir_ = CENTER; - staff_size_i_= 8; // UGH - steps_i_ = 0; - position_i_ = 0; - extremal_i_ = 0; + Real inter_f = Staff_symbol_referencer::staff_space (me)/2; + int lines_i = abs (pos) < interspaces + ? 0 + : (abs (pos) - interspaces) / 2; + Molecule molecule = Molecule(); + + if (lines_i) + { + Real ledgerlinethickness = + (me->paper_l ()->get_var ("ledgerlinethickness")); + Real blotdiameter = ledgerlinethickness; + // (me->paper_l ()->get_var ("blotdiameter")); + Interval y_extent = + Interval (-0.5*(ledgerlinethickness), + +0.5*(ledgerlinethickness)); + Box ledger_line (x_extent, y_extent); + +#if 1 + Molecule proto_ledger_line = + Lookup::roundfilledbox (ledger_line, blotdiameter); +#else + Molecule proto_ledger_line = // if you like it the old way + Lookup::filledbox (ledger_line); +#endif + + if (!take_space) + proto_ledger_line.set_empty (true); + + Direction dir = (Direction)sign (pos); + Real offs = (Staff_symbol_referencer::on_staffline (me, pos)) + ? 0.0 + : -dir * inter_f; + for (int i = 0; i < lines_i; i++) + { + Molecule ledger_line (proto_ledger_line); + ledger_line.translate_axis (-dir * inter_f * i * 2 + offs, Y_AXIS); + molecule.add_molecule (ledger_line); + } + } + + return molecule; } -void -Note_head::do_pre_processing () +Molecule +internal_brew_molecule (Grob *me, bool ledger_take_space) { - // 8 ball looks the same as 4 ball: - if (balltype_i_ > 2) - balltype_i_ = 2; - if (dots_l_) // move into Rhythmic_head? - dots_l_->position_i_ = position_i_; -} + SCM style = me->get_grob_property ("style"); + if (!gh_symbol_p (style)) + { + return Molecule(); + } + /* + ugh: use gh_call () / scm_apply (). + UGH: use grob-property. + */ + SCM log = gh_int2scm (Rhythmic_head::balltype_i (me)); + SCM exp = scm_list_n (ly_symbol2scm ("find-notehead-symbol"), log, + ly_quote_scm (style), + SCM_UNDEFINED); + String name = "noteheads-" + ly_scm2string (scm_primitive_eval (exp)); + Molecule out = Font_interface::get_default_font (me)->find_by_name (name); + int interspaces = Staff_symbol_referencer::line_count (me)-1; + int pos = (int)rint (Staff_symbol_referencer::position_f (me)); + if (abs (pos) - interspaces > 1) + { + Interval hd = out.extent (X_AXIS); + Real left_ledger_protusion = hd.length ()/4; + Real right_ledger_protusion = left_ledger_protusion; + + if (unsmob_grob(me->get_grob_property ("accidentals-grob"))) + { + /* + make a little room for accidentals. + + TODO: this will look silly if a chord has ledger lines, + and only the bottom note has an accidental. + */ + + left_ledger_protusion *= 0.66; + right_ledger_protusion *= 0.9; + } -int -Note_head::compare (Note_head *const &a, Note_head * const &b) + Interval l_extents = Interval (hd[LEFT] - left_ledger_protusion, + hd[RIGHT] + right_ledger_protusion); + out.add_molecule (Note_head::brew_ledger_lines (me, pos, interspaces, + l_extents, + ledger_take_space)); + } + return out; +} + + +MAKE_SCHEME_CALLBACK (Note_head,brew_molecule,1); +SCM +Note_head::brew_molecule (SCM smob) { - return a->position_i_ - b->position_i_; + Grob *me = unsmob_grob (smob); + + /* + ledgers don't take space. See top of file. + */ + return internal_brew_molecule (me, false).smobbed_copy (); } +/* + Compute the width the head without ledgers. + */ Interval -Note_head::do_width () const +Note_head::head_extent (Grob *me, Axis a) +{ + return internal_brew_molecule (me, false).extent (a); +} + +bool +Note_head::has_interface (Grob*m) { - Atom a = lookup_l ()->ball (balltype_i_); - Interval i = a.dim_[X_AXIS]; - i+= x_dir_ * i.length (); - return i; + return m&& m->has_interface (ly_symbol2scm ("note-head-interface")); } -Molecule* -Note_head::do_brew_molecule_p() const + +MAKE_SCHEME_CALLBACK (Note_head,brew_ez_molecule,1); + +SCM +Note_head::brew_ez_molecule (SCM smob) { - Molecule*out = 0; - Paper_def *p = paper(); - Real inter_f = p->internote_f (); + Grob *me = unsmob_grob (smob); + int l = Rhythmic_head::balltype_i (me); - // ugh - int streepjes_i = abs (position_i_) < staff_size_i_/2 - ? 0 - : (abs(position_i_) - staff_size_i_/2) /2; + int b = (l >= 2); + + SCM cause = me->get_grob_property ("cause"); + SCM spitch = unsmob_music (cause)->get_mus_property ("pitch"); + Pitch* pit = unsmob_pitch (spitch); + + char s[2] = "a"; + s[0] = (pit->notename_i_ + 2)%7 + 'a'; + s[0] = toupper (s[0]); + + SCM charstr = ly_str02scm (s); - Atom s = lookup_l()->ball (balltype_i_); - out = new Molecule (Atom (s)); - out->translate_axis (x_dir_ * s.dim_[X_AXIS].length (), X_AXIS); + SCM at = scm_list_n (ly_symbol2scm ("ez-ball"), + charstr, + gh_int2scm (b), + gh_int2scm (1-b), + SCM_UNDEFINED); + Box bx (Interval (0, 1.0), Interval (-0.5, 0.5)); + Molecule m (bx, at); - if (streepjes_i) + int pos = (int)rint (Staff_symbol_referencer::position_f (me)); + int interspaces = Staff_symbol_referencer::line_count (me)-1; + if (abs (pos) - interspaces > 1) { - int dir = sign (position_i_); - Atom streepje = lookup_l ()->streepje (balltype_i_); - - int parity = (position_i_ % 2) ? 1 : 0; - - - for (int i=0; i < streepjes_i; i++) - { - Atom s = streepje; - s.translate_axis (-dir * inter_f * (i*2 + parity), - Y_AXIS); - out->add_atom (s); - } + Interval hd = m.extent (X_AXIS); + Real hw = hd.length ()/4; + Interval extent = Interval (hd[LEFT] - hw, hd[RIGHT] + hw); + m.add_molecule (brew_ledger_lines (me, pos, interspaces, extent, false)); } + + return m.smobbed_copy (); +} + + +Real +Note_head::stem_attachment_coordinate (Grob *me, Axis a) +{ + SCM v = me->get_grob_property ("stem-attachment-function"); + + if (!gh_procedure_p (v)) + return 0.0; + + SCM st = me->get_grob_property ("style"); + SCM result = gh_apply (v, scm_list_n (st, SCM_UNDEFINED)); + + if (!gh_pair_p (result)) + return 0.0; + + result = (a == X_AXIS) ? ly_car (result) : ly_cdr (result); - out->translate_axis (inter_f*position_i_, Y_AXIS); - return out; + return gh_number_p (result) ? gh_scm2double (result) : 0.0; } + +ADD_INTERFACE (Note_head,"note-head-interface", + "Note head", + "accidentals-grob style stem-attachment-function");