X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=lily%2Fnote-head.cc;h=39f57e848c82c48d7b65154359d5c42ba90067f9;hb=712b6f387c98454e0fc8c5b6c7f0848acf4b29ec;hp=faad35629763a484d80bc55d3829cc64be66b728;hpb=2873636a53f0011f837aaf6e2072de602730d957;p=lilypond.git diff --git a/lily/note-head.cc b/lily/note-head.cc index faad356297..39f57e848c 100644 --- a/lily/note-head.cc +++ b/lily/note-head.cc @@ -3,102 +3,338 @@ source file of the GNU LilyPond music typesetter - (c) 1997--1999 Han-Wen Nienhuys + (c) 1997--2004 Han-Wen Nienhuys */ +#include +#include +#include "staff-symbol.hh" #include "misc.hh" #include "dots.hh" #include "note-head.hh" -#include "debug.hh" +#include "warn.hh" +#include "font-interface.hh" +#include "stencil.hh" +#include "event.hh" +#include "rhythmic-head.hh" +#include "staff-symbol-referencer.hh" #include "lookup.hh" -#include "molecule.hh" -#include "musical-request.hh" -#include "stem.hh" +#include "paper-def.hh" -void -Note_head::flip_around_stem (Direction d) -{ - translate_axis (do_width ().length () * d, X_AXIS); -} +/* + 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: -Note_head::Note_head () + - 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?) + +*/ + +/* + TODO: ledger lines are also a property of the staff. Maybe move them + to there? + */ +Stencil +Note_head::brew_ledger_lines (Grob *me, + int pos, + int interspaces, + Interval x_extent, + Real left_shorten, + bool take_space) { + Grob *staff = Staff_symbol_referencer::get_staff_symbol (me); + Real inter_f = Staff_symbol_referencer::staff_space (me)/2; + int line_count = ((abs (pos) < interspaces) + ? 0 + : (abs (pos) - interspaces) / 2); + Stencil stencil; + if (line_count) + { + Real ledgerlinethickness = + Staff_symbol::get_ledger_line_thickness (staff); + Real blotdiameter = ledgerlinethickness; + Interval y_extent = + Interval (-0.5*(ledgerlinethickness), + +0.5*(ledgerlinethickness)); + Stencil proto_ledger_line = + Lookup::round_filled_box (Box (x_extent, y_extent), blotdiameter); + + x_extent[LEFT] += left_shorten; + Stencil proto_first_line = + Lookup::round_filled_box (Box (x_extent, y_extent), blotdiameter); + + if (!take_space) + { + proto_ledger_line.set_empty (true); + proto_first_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 < line_count; i++) + { + Stencil ledger_line ((i == 0) + ? proto_first_line + : proto_ledger_line + ); + ledger_line.translate_axis (-dir * inter_f * i * 2 + offs, Y_AXIS); + stencil.add_stencil (ledger_line); + } + } + + return stencil; } -void -Note_head::do_pre_processing () +Stencil +internal_print (Grob *me, bool with_ledgers) { - Rhythmic_head::do_pre_processing (); - // 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_ = int (position_f ()); -} + SCM style = me->get_property ("style"); + if (!ly_c_symbol_p (style)) + { + return Stencil (); + } + SCM log = scm_int2num (Note_head::get_balltype (me)); + SCM proc = me->get_property ("glyph-name-procedure"); + SCM scm_font_char = scm_call_2 (proc, log, style); + String font_char = "noteheads-" + ly_scm2string (scm_font_char); + Font_metric * fm = Font_interface::get_default_font (me); + Stencil out = fm->find_by_name (font_char); + if (out.is_empty ()) + { + me->warning (_f ("note head `%s' not found", font_char.to_str0 ())); + } -int -Note_head::compare (Note_head *const &a, Note_head * const &b) + int interspaces = Staff_symbol_referencer::line_count (me)-1; + int pos = Staff_symbol_referencer::get_rounded_position (me); + if (with_ledgers && interspaces >= 0 + && abs (pos) - interspaces > 1) + { + Interval ledger_size = out.extent (X_AXIS); + ledger_size.widen ( ledger_size.length ()/4); + + Real left_shorten =0.0; + if (Grob * g = unsmob_grob (me->get_property ("accidental-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. + */ + + Grob *common = g->common_refpoint (me, X_AXIS); + Real d = + linear_combination (Drul_array (me->extent (common, X_AXIS)[LEFT], + g->extent (common, X_AXIS)[RIGHT]), + + 0.5); + + left_shorten = (-ledger_size[LEFT] + d) >? 0 ; + + /* + TODO: shorten 2 ledger lines for the case natural + + downstem. + */ + } + + out.add_stencil (Note_head::brew_ledger_lines (me, pos, interspaces, + ledger_size, + left_shorten, + false)); + } + return out; +} + + +MAKE_SCHEME_CALLBACK (Note_head,print,1); +SCM +Note_head::print (SCM smob) { - return sign(a->position_f () - b->position_f ()); + Grob *me = unsmob_grob (smob); + + /* + ledgers don't take space. See top of file. + */ + return internal_print (me, true).smobbed_copy (); } -/** - Don't account for ledgerlines in the width. +/* + Compute the width the head without ledgers. + + -- there used to be some code from the time that ledgers + did take space. Nowadays, we can simply take the standard extent. */ Interval -Note_head::do_width () const +Note_head::head_extent (Grob *me, Axis a) +{ + SCM brewer = me->get_property ("print-function"); + if (brewer == Note_head::print_proc) + { + Stencil mol = internal_print (me, false); + + if (!mol.is_empty ()) + return mol.extent (a); + } + else + { + Stencil * mol = me->get_stencil (); + if (mol) + return mol->extent (a) ; + } + + return Interval (0,0); +} + +/* + This is necessary to prevent a cyclic dependency: the appearance of + the ledgers depends on positioning, so the Grob::get_stencil () can + not be used for determining the note head extent. + + */ +MAKE_SCHEME_CALLBACK (Note_head,extent,2); +SCM +Note_head::extent (SCM smob, SCM axis) { - Molecule a = lookup_l ()->notehead (balltype_i_, ""); // UGH - Interval i = a.dim_[X_AXIS]; - return i; + Grob *me = unsmob_grob (smob); + + return ly_interval2scm (head_extent (me, (Axis) ly_scm2int (axis))); } -Molecule* -Note_head::do_brew_molecule_p() const +MAKE_SCHEME_CALLBACK (Note_head,brew_ez_stencil,1); +SCM +Note_head::brew_ez_stencil (SCM smob) { - Real inter_f = staff_line_leading_f ()/2; - int sz = lines_i ()-1; + Grob *me = unsmob_grob (smob); + int l = Note_head::get_balltype (me); - int streepjes_i = abs (position_f ()) < sz - ? 0 - : (abs(position_f ()) - sz) /2; + int b = (l >= 2); + SCM cause = me->get_property ("cause"); + SCM spitch = unsmob_music (cause)->get_property ("pitch"); + Pitch* pit = unsmob_pitch (spitch); - String type; - SCM style =get_elt_property ("style"); - if (style != SCM_UNDEFINED) + SCM idx = scm_int2num (pit->get_notename ()); + SCM names = me->get_property ("note-names"); + SCM charstr = SCM_EOL; + if (ly_c_vector_p (names)) + charstr = scm_vector_ref (names, idx); + else { - type = ly_scm2string (style); + char s[2] = "a"; + s[0] = (pit->get_notename () + 2)%7 + 'a'; + s[0] = toupper (s[0]); + charstr = scm_makfrom0str (s); } - Molecule* out = new Molecule (lookup_l()->notehead (balltype_i_, type)); + SCM at = scm_list_n (ly_symbol2scm ("ez-ball"), + charstr, + scm_int2num (b), + scm_int2num (1-b), + SCM_UNDEFINED); + Box bx (Interval (0, 1.0), Interval (-0.5, 0.5)); + Stencil m (bx, at); + + int pos = Staff_symbol_referencer::get_rounded_position (me); + int interspaces = Staff_symbol_referencer::line_count (me)-1; + if (abs (pos) - interspaces > 1) + { + Interval hd = m.extent (X_AXIS); + hd.widen ( hd.length ()/4); + m.add_stencil (brew_ledger_lines (me, pos, interspaces, hd, 0, false)); + } + + return m.smobbed_copy (); +} - Box b = out->dim_; - if (streepjes_i) +Real +Note_head::stem_attachment_coordinate (Grob *me, Axis a) +{ + SCM brewer = me->get_property ("print-function"); + Font_metric * fm = Font_interface::get_default_font (me); + + if (brewer == Note_head::print_proc) { - Direction dir = (Direction)sign (position_f ()); - Interval hd = out->dim_[X_AXIS]; - Real hw = hd.length ()/4; - - Molecule ledger - = lookup_l ()->ledger_line (Interval (hd[LEFT] - hw, - hd[RIGHT] + hw)); - - int parity = abs(int (position_f ())) % 2; + SCM style = me->get_property ("style"); + if (!ly_c_symbol_p (style)) + { + return 0.0; + } - for (int i=0; i < streepjes_i; i++) + SCM log = scm_int2num (Note_head::get_balltype (me)); + SCM proc = me->get_property ("glyph-name-procedure"); + SCM scm_font_char = scm_call_2 (proc, log, style); + String font_char = "noteheads-" + ly_scm2string (scm_font_char); + + int k = fm->name_to_index (font_char) ; + + if (k >= 0) { - Molecule s (ledger); - s.translate_axis (-dir * inter_f * (i*2 + parity), - Y_AXIS); - out->add_molecule (s); + Box b = fm->get_indexed_char (k); + Offset wxwy = fm->get_indexed_wxwy (k); + Interval v = b[a]; + if (!v.is_empty ()) + return 2 * (wxwy[a] - v.center ()) / v.length (); } } + + /* + Fallback + */ + SCM v = me->get_property ("stem-attachment-function"); + if (!ly_c_procedure_p (v)) + return 0.0; + + SCM result = scm_call_2 (v, me->self_scm (), scm_int2num (a)); + if (!ly_c_pair_p (result)) + return 0.0; - out->dim_ = b; - return out; + result = (a == X_AXIS) ? ly_car (result) : ly_cdr (result); + + return robust_scm2double (result,0); } +int +Note_head::get_balltype (Grob*me) +{ + SCM s = me->get_property ("duration-log"); + return ly_c_number_p (s) ? ly_scm2int (s)