X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=lily%2Fmulti-measure-rest.cc;h=68c56de9c6d8c78b6e065e0830506be705b2412c;hb=47db9a3883d726ca53e2133a3b2298f78dd6a32e;hp=9870a13a883dcfc7bf28ec01b1419c42e6616114;hpb=5e963da4031a9efceda94f4969785bf6fa13048b;p=lilypond.git diff --git a/lily/multi-measure-rest.cc b/lily/multi-measure-rest.cc index 9870a13a88..e13d5bf17a 100644 --- a/lily/multi-measure-rest.cc +++ b/lily/multi-measure-rest.cc @@ -1,275 +1,443 @@ -/* - multi-measure-rest.cc -- implement Multi_measure_rest - - source file of the GNU LilyPond music typesetter - - (c) 1998--2001 Jan Nieuwenhuizen - - */ +/* + This file is part of LilyPond, the GNU music typesetter. + + Copyright (C) 1998--2015 Jan Nieuwenhuizen + + LilyPond is free software: you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, either version 3 of the License, or + (at your option) any later version. + + LilyPond is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with LilyPond. If not, see . +*/ #include "multi-measure-rest.hh" -#include "debug.hh" -#include "paper-def.hh" -#include "paper-column.hh" // urg + +#include "directional-element-interface.hh" #include "font-interface.hh" -#include "rest.hh" -#include "molecule.hh" +#include "international.hh" +#include "lookup.hh" #include "misc.hh" -#include "group-interface.hh" +#include "moment.hh" +#include "output-def.hh" +#include "paper-column.hh" // urg +#include "percent-repeat-item.hh" +#include "rest.hh" +#include "separation-item.hh" +#include "spacing-options.hh" #include "spanner.hh" +#include "staff-symbol.hh" #include "staff-symbol-referencer.hh" -#include "text-item.hh" -#include "percent-repeat-item.hh" - +#include "system.hh" +#include "text-interface.hh" +#include "warn.hh" -void -Multi_measure_rest::set_interface (Grob*me) +Interval +Multi_measure_rest::bar_width (Spanner *me) { - me->set_interface (ly_symbol2scm ("multi-measure-rest-interface")); -} + SCM spacing_pair = me->get_property ("spacing-pair"); + Interval iv; + for (LEFT_and_RIGHT (d)) + { + Item *col = me->get_bound (d)->get_column (); + SCM align_sym + = (scm_is_pair (spacing_pair) + ? index_get_cell (spacing_pair, d) + : ly_symbol2scm ("staff-bar")); + Interval coldim = Paper_column::break_align_width (col, align_sym); + + iv[d] = coldim[-d]; + } -bool -Multi_measure_rest::has_interface (Grob*me) -{ - return me->has_interface (ly_symbol2scm ("multi-measure-rest-interface")); + return iv; } -MAKE_SCHEME_CALLBACK (Multi_measure_rest,percent,1); +MAKE_SCHEME_CALLBACK (Multi_measure_rest, percent, 1); SCM Multi_measure_rest::percent (SCM smob) { - - Grob *me = unsmob_grob (smob); - Spanner *sp = dynamic_cast (me); - - Molecule r = Percent_repeat_item_interface::x_percent (me, 1, 0.75, 1.6); + Grob *me = Grob::unsmob (smob); + Spanner *sp = dynamic_cast (me); - // ugh copy & paste. - - Interval sp_iv; - Direction d = LEFT; - do - { - Item * col = sp->get_bound (d)->column_l (); + Stencil r = Percent_repeat_item_interface::x_percent (me, 1); + r.translate_axis (-r.extent (X_AXIS).center (), X_AXIS); - Interval coldim = col->extent (0, X_AXIS); + // ugh copy & paste. - sp_iv[d] = coldim[-d] ; - } - while ((flip (&d)) != LEFT); + Grob *common_x = sp->get_bound (LEFT)->common_refpoint (sp->get_bound (RIGHT), + X_AXIS); + Interval sp_iv = bar_width (sp); Real x_off = 0.0; - Real rx = sp->get_bound (LEFT)->relative_coordinate (0, X_AXIS); + Real rx = sp->get_bound (LEFT)->relative_coordinate (common_x, X_AXIS); /* we gotta stay clear of sp_iv, so move a bit to the right if needed. - */ - x_off += (sp_iv[LEFT] - rx) >? 0; + */ + x_off += max (sp_iv[LEFT] - rx, 0.0); /* center between stuff. - */ - x_off += sp_iv.length ()/ 2; + */ + x_off += sp_iv.length () / 2; - r.translate_axis (x_off,X_AXIS); + r.translate_axis (x_off, X_AXIS); - return r.smobbed_copy (); } - -/* - [TODO] 17 - variable-sized multi-measure rest symbol: |====| ?? -*/ -MAKE_SCHEME_CALLBACK (Multi_measure_rest,brew_molecule,1); +MAKE_SCHEME_CALLBACK (Multi_measure_rest, print, 1); SCM -Multi_measure_rest::brew_molecule (SCM smob) +Multi_measure_rest::print (SCM smob) { - Grob *me = unsmob_grob (smob); - if (to_boolean (me->get_grob_property ("skip-timestep"))) - { - me->set_grob_property ("skip-timestep", SCM_EOL); - return SCM_EOL; - } - - Spanner * sp = dynamic_cast (me); + Grob *me = Grob::unsmob (smob); + Spanner *sp = dynamic_cast (me); - SCM alist_chain = Font_interface::font_alist_chain (me); + Interval sp_iv = bar_width (sp); + Real space = sp_iv.length (); - - SCM style_chain = - Font_interface::add_style (me, ly_symbol2scm ("mmrest-symbol"), - alist_chain); - - Font_metric *musfont - = Font_interface::get_font (me,style_chain); - - Real staff_space = Staff_symbol_referencer::staff_space (me); - - Interval sp_iv; - Direction d = LEFT; - do - { - Item * col = sp->get_bound (d)->column_l (); - - Interval coldim = col->extent (0, X_AXIS); - - sp_iv[d] = coldim[-d] ; - } - while ((flip (&d)) != LEFT); - Molecule mol; - Real x_off = 0.0; - - Real rx = sp->get_bound (LEFT)->relative_coordinate (0, X_AXIS); + Real rx = sp->get_bound (LEFT)->relative_coordinate (0, X_AXIS); /* we gotta stay clear of sp_iv, so move a bit to the right if needed. - */ - x_off += (sp_iv[LEFT] - rx) >? 0; + */ + Real x_off = max (sp_iv[LEFT] - rx, 0.0); - /* - center between stuff. - */ - x_off += sp_iv.length ()/ 2; + Stencil mol; + mol.add_stencil (symbol_stencil (me, space)); - - Molecule s; + mol.translate_axis (x_off, X_AXIS); + return mol.smobbed_copy (); +} - int measures = 0; - SCM m (me->get_grob_property ("measure-count")); - if (gh_number_p (m)) - { - measures = gh_scm2int (m); - } - +MAKE_SCHEME_CALLBACK (Multi_measure_rest, height, 1); +SCM +Multi_measure_rest::height (SCM smob) +{ + Grob *me = Grob::unsmob (smob); - SCM limit = me->get_grob_property ("expand-limit"); - if (measures <= 0) - return SCM_EOL; - if (measures == 1) - { - s = musfont->find_by_name (Rest::glyph_name (me, 0, "")); + Real space = 1000000; // something very large... + + Stencil mol; + mol.add_stencil (symbol_stencil (me, space)); + + return ly_interval2scm (mol.extent (Y_AXIS)); +} - /* - ugh. - */ - if (Staff_symbol_referencer::position_f (me) == 0.0) - s.translate_axis (Staff_symbol_referencer::staff_space (me), Y_AXIS); +int +calc_closest_duration_log (Grob *me, double duration, bool force_round_up) +{ + bool round_up = force_round_up + || to_boolean (me->get_property ("round-up-to-longer-rest")); + int closest_usable_duration_log; + + // Out of range initial values. + if (round_up) + closest_usable_duration_log = -15; // high value + else + closest_usable_duration_log = 15; // low value + int minimum_usable_duration_log = -15; + int maximum_usable_duration_log = 15; + + SCM duration_logs_list = me->get_property ("usable-duration-logs"); + if (to_boolean (scm_null_p (duration_logs_list)) + || !to_boolean (scm_list_p (duration_logs_list))) + { + warning (_ ("usable-duration-logs must be a non-empty list." + " Falling back to whole rests.")); + closest_usable_duration_log = 0; } - else if (measures <= gh_scm2int (limit)) + else { - /* - Build a rest from smaller parts. Distances inbetween are - really variable, see Wanske pp. 125 */ - - int l = measures; - while (l) - { - int k; - if (l >= 4) - { - l-=4; - k = -2; - } - else if (l>= 2) - { - l -= 2; - k = -1; - } - else - { - k = 0; - l --; - } - - Real pad = s.empty_b () - ? 0.0 : gh_scm2double (me->get_grob_property ("padding")) * staff_space; - - Molecule r (musfont->find_by_name ("rests-" + to_str (k))); - if (k == 0) - r.translate_axis (staff_space, Y_AXIS); - - s.add_at_edge (X_AXIS, RIGHT, r, pad); - } - - - s.align_to (X_AXIS, CENTER); + for (SCM s = duration_logs_list; scm_is_pair (s); s = scm_cdr (s)) + { + int dur_log = scm_to_int (scm_car (s)); + if (dur_log > minimum_usable_duration_log) + minimum_usable_duration_log = dur_log; + if (dur_log < maximum_usable_duration_log) + maximum_usable_duration_log = dur_log; + double dur = pow (2.0, -dur_log); + if (round_up) + { + if (duration <= dur && dur_log > closest_usable_duration_log) + closest_usable_duration_log = dur_log; + } + else + { + if (duration >= dur && dur_log < closest_usable_duration_log) + closest_usable_duration_log = dur_log; + } + } } - else + + if (closest_usable_duration_log == 15) + closest_usable_duration_log = minimum_usable_duration_log; + if (closest_usable_duration_log == -15) + closest_usable_duration_log = maximum_usable_duration_log; + + return closest_usable_duration_log; +} + +int +calc_measure_duration_log (Grob *me) +{ + SCM sml = dynamic_cast (me)->get_bound (LEFT) + ->get_property ("measure-length"); + Rational ml = (Moment::is_smob (sml)) ? Moment::unsmob (sml)->main_part_ + : Rational (1); + double measure_duration = ml.Rational::to_double (); + bool force_round_up = to_boolean (scm_list_p (scm_member (scm_cons (scm_from_int64 (ml.numerator ()), + scm_from_int64 (ml.denominator ())), + me->get_property ("round-up-exceptions")))); + return calc_closest_duration_log (me, measure_duration, force_round_up); +} + +Stencil +Multi_measure_rest::symbol_stencil (Grob *me, Real space) +{ + int measure_count = 0; + SCM m (me->get_property ("measure-count")); + if (scm_is_number (m)) + measure_count = scm_to_int (m); + if (measure_count <= 0) + return Stencil (); + + SCM limit = me->get_property ("expand-limit"); + if (measure_count > scm_to_int (limit)) { - String idx = ("rests-") + to_str (-4); - s = musfont->find_by_name (idx); + Real padding = 0.15; + Stencil s = big_rest (me, (1.0 - 2 * padding) * space); + s.translate_axis (padding * space, X_AXIS); + return s; } - - mol.add_molecule (s); - if (measures > 1) + Font_metric *musfont = Font_interface::get_default_font (me); + int mdl = calc_measure_duration_log (me); + + if (measure_count == 1) { - Molecule s = Text_item::text2molecule (me, - ly_str02scm (to_str (measures).ch_C ()), - alist_chain); - s.align_to (X_AXIS, CENTER); - s.translate_axis (3.0 * staff_space, Y_AXIS); - mol.add_molecule (s); + if (me->get_property ("staff-position") == SCM_EOL) + { + int dir = get_grob_direction (me); + Real pos = Rest::staff_position_internal (me, mdl, dir); + me->set_property ("staff-position", scm_from_double (pos)); + } + + Stencil s = musfont->find_by_name (Rest::glyph_name (me, mdl, "", true, 0.0)); + + s.translate_axis ((space - s.extent (X_AXIS).length ()) / 2, X_AXIS); + return s; } - mol.translate_axis (x_off, X_AXIS); - return mol.smobbed_copy (); + else + return church_rest (me, musfont, measure_count, space); } /* - UGH. JUNKME elt prop "columns" isn't really needed. - */ -void -Multi_measure_rest::add_column (Grob*me,Item* c) + WIDTH can also be 0 to determine the minimum size of the object. +*/ +Stencil +Multi_measure_rest::big_rest (Grob *me, Real width) { - Pointer_group_interface::add_element (me, "columns",c); + Real thick_thick = robust_scm2double (me->get_property ("thick-thickness"), 1.0); + Real hair_thick = robust_scm2double (me->get_property ("hair-thickness"), .1); + + Real ss = Staff_symbol_referencer::staff_space (me); + Real slt = me->layout ()->get_dimension (ly_symbol2scm ("line-thickness")); + Real y = slt * thick_thick / 2 * ss; + Real ythick = hair_thick * slt * ss; + Box b (Interval (0.0, max (0.0, (width - 2 * ythick))), Interval (-y, y)); + + Real blot = width ? (.8 * min (y, ythick)) : 0.0; + + Stencil m = Lookup::round_filled_box (b, blot); + Stencil yb = Lookup::round_filled_box (Box (Interval (-0.5, 0.5) * ythick, Interval (-ss, ss)), blot); - add_bound_item (dynamic_cast (me),c); + m.add_at_edge (X_AXIS, RIGHT, yb, 0); + m.add_at_edge (X_AXIS, LEFT, yb, 0); + + m.align_to (X_AXIS, LEFT); + + return m; } +/* + Kirchenpause (?) +*/ +Stencil +Multi_measure_rest::church_rest (Grob *me, Font_metric *musfont, int measure_count, + Real space) +{ + SCM mols = SCM_EOL; + int symbol_count = 0; + Real symbols_width = 0.0; + double total_duration = measure_count * pow (2.0, -calc_measure_duration_log (me)); -MAKE_SCHEME_CALLBACK (Multi_measure_rest, set_spacing_rods,1); + SCM staff_position = me->get_property ("staff-position"); -SCM -Multi_measure_rest::set_spacing_rods (SCM smob) + if (!scm_is_number (staff_position)) + { + // Staff position is somewhat icky regarding its definition for + // compatibility reasons. It is intended to be the baseline of + // a breve rest. However, when the staff space is more than + // single space (like with tablature), it looks better if all + // rests are actually hanging. So staff position, in reality, + // is the semi-breve position - 2. Everything else is + // calculated from there. + int dir = get_grob_direction (me); + Real pos = Rest::staff_position_internal (me, 0, dir); + me->set_property ("staff-position", scm_from_double (pos - 2)); + } + + while (total_duration > 0) + { + int dl = calc_closest_duration_log (me, total_duration, false); + double duration = pow (2.0, -dl); + + total_duration -= duration; + + Stencil r = musfont->find_by_name (Rest::glyph_name (me, dl, "", true, 2)); + + Real staff_space = Staff_symbol_referencer::staff_space (me); + if (dl == 0) + { + r.translate_axis (staff_space, Y_AXIS); + } + else + { + r.translate_axis (staff_space-r.extent (Y_AXIS).at (UP), Y_AXIS); + } + symbols_width += r.extent (X_AXIS).length (); + mols = scm_cons (r.smobbed_copy (), mols); + symbol_count++; + } + + /* Make outer padding this much bigger. */ + Real outer_padding_factor = 1.5; + Real inner_padding = (space - symbols_width) + / (2 * outer_padding_factor + (symbol_count - 1)); + if (inner_padding < 0) + inner_padding = 1.0; + + Stencil mol; + for (SCM s = mols; scm_is_pair (s); s = scm_cdr (s)) + mol.add_at_edge (X_AXIS, LEFT, *Stencil::unsmob (scm_car (s)), + inner_padding); + mol.align_to (X_AXIS, LEFT); + mol.translate_axis (outer_padding_factor * inner_padding, X_AXIS); + + return mol; +} + +void +Multi_measure_rest::add_column (Grob *me, Item *c) { - Grob*me = unsmob_grob (smob); + add_bound_item (dynamic_cast (me), c); +} - Spanner*sp = dynamic_cast (me); +void +Multi_measure_rest::calculate_spacing_rods (Grob *me, Real length) +{ + Spanner *sp = dynamic_cast (me); if (! (sp->get_bound (LEFT) && sp->get_bound (RIGHT))) { programming_error ("Multi_measure_rest::get_rods (): I am not spanned!"); - return SCM_UNSPECIFIED; + return; + } + + Item *li = sp->get_bound (LEFT)->get_column (); + Item *ri = sp->get_bound (RIGHT)->get_column (); + Item *lb = li->find_prebroken_piece (RIGHT); + Item *rb = ri->find_prebroken_piece (LEFT); + + Grob *spacing = Grob::unsmob (li->get_object ("spacing")); + if (!spacing) + spacing = Grob::unsmob (ri->get_object ("spacing")); + if (spacing) + { + Spacing_options options; + options.init_from_grob (me); + Moment mlen = robust_scm2moment (li->get_property ("measure-length"), + Moment (1)); + length += robust_scm2double (li->get_property ("full-measure-extra-space"), 0.0) + + options.get_duration_space (mlen.main_part_) + + (robust_scm2double (me->get_property ("space-increment"), 0.0) + * log_2 (robust_scm2int (me->get_property ("measure-count"), 1))); } - Item * l = sp->get_bound (LEFT)->column_l (); - Item * r = sp->get_bound (RIGHT)->column_l (); - Item * lb = l->find_prebroken_piece (RIGHT); - Item * rb = r->find_prebroken_piece (LEFT); - - Item* combinations[4][2]={{l,r}, {lb,r}, {l,rb},{lb,rb}}; - Real staff_space = Staff_symbol_referencer::staff_space (me); - for (int i=0; i < 4; i++) + length += 2 * robust_scm2double (me->get_property ("bound-padding"), 0.0); + + Real minlen = robust_scm2double (me->get_property ("minimum-length"), 0.0); + + Item *combinations[4][2] = {{li, ri}, + {lb, ri}, + {li, rb}, + {lb, rb} + }; + + for (int i = 0; i < 4; i++) { - Item * l = combinations[i][0]; - Item *r = combinations[i][1]; + Item *li = combinations[i][0]; + Item *ri = combinations[i][1]; - if (!l || !r) - continue; + if (!li || !ri) + continue; Rod rod; - rod.item_l_drul_[LEFT] = l; - rod.item_l_drul_[RIGHT] = r; - - /* - should do something more advanced. - */ - rod.distance_f_ = l->extent (l, X_AXIS)[BIGGER] - r->extent (r, X_AXIS)[SMALLER] - + gh_scm2double (me->get_grob_property ("minimum-width")) * staff_space; - + rod.item_drul_[LEFT] = li; + rod.item_drul_[RIGHT] = ri; + + rod.distance_ = max (Paper_column::minimum_distance (li, ri) + length, + minlen); rod.add_to_cols (); } +} + +MAKE_SCHEME_CALLBACK (Multi_measure_rest, set_spacing_rods, 1); +SCM +Multi_measure_rest::set_spacing_rods (SCM smob) +{ + Grob *me = Grob::unsmob (smob); + Real sym_width = symbol_stencil (me, 0.0).extent (X_AXIS).length (); + calculate_spacing_rods (me, sym_width); + + return SCM_UNSPECIFIED; +} + +MAKE_SCHEME_CALLBACK (Multi_measure_rest, set_text_rods, 1); +SCM +Multi_measure_rest::set_text_rods (SCM smob) +{ + Grob *me = Grob::unsmob (smob); + Stencil *stil = me->get_stencil (); + + /* FIXME uncached */ + Real len = (stil && !stil->extent (X_AXIS).is_empty ()) + ? stil->extent (X_AXIS).length () + : 0.0; + calculate_spacing_rods (me, len); + return SCM_UNSPECIFIED; } +ADD_INTERFACE (Multi_measure_rest, + "A rest that spans a whole number of measures.", + + /* properties */ + "bound-padding " + "expand-limit " + "hair-thickness " + "measure-count " + "minimum-length " + "round-up-exceptions " + "round-up-to-longer-rest " + "space-increment " + "spacing-pair " + "thick-thickness " + "usable-duration-logs " + );