X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=lily%2Ftext-spanner.cc;h=8a7efdc6d3b46f7cdb6f25516da3aa0d7aed5ce9;hb=839133759fa353574cf9323ad9da4b39d5b4eb34;hp=2bafc76723ffb2e70aacf1f7c9ddb723cc668fae;hpb=1cf3d59c1559fb9774c4c1c8cae155cfe54a927c;p=lilypond.git diff --git a/lily/text-spanner.cc b/lily/text-spanner.cc index 2bafc76723..8a7efdc6d3 100644 --- a/lily/text-spanner.cc +++ b/lily/text-spanner.cc @@ -1,99 +1,297 @@ /* - text-spanner.cc -- implement Text_spanner - source file of the GNU LilyPond music typesetter +text-spanner.cc -- implement Text_spanner - (c) 1997--1998 Han-Wen Nienhuys +source file of the GNU LilyPond music typesetter + +(c) 2000--2002 Jan Nieuwenhuizen */ #include "molecule.hh" -#include "box.hh" +#include "text-item.hh" #include "text-spanner.hh" -#include "text-def.hh" -#include "debug.hh" +#include "line-spanner.hh" +#include "spanner.hh" +#include "font-interface.hh" +#include "dimensions.hh" #include "paper-def.hh" -#include "atom.hh" +#include "warn.hh" +#include "paper-column.hh" +#include "staff-symbol-referencer.hh" + +/* + TODO: + - vertical start / vertical end (fixme-name) | + - contination types (vert. star, vert. end) |-> eat volta-bracket + - more styles + - more texts/positions +*/ +MAKE_SCHEME_CALLBACK (Text_spanner, brew_molecule, 1); -void -Text_spanner::set_support (Directional_spanner*d) +/* + TODO: this function is too long, too hairy. + + TODO: document this. What the heck is happening here? +*/ +SCM +Text_spanner::brew_molecule (SCM smob) { - if (support_span_l_) - remove_dependency (support_span_l_); + Grob *me= unsmob_grob (smob); + Spanner *spanner = dynamic_cast (me); - support_span_l_ =d; - add_dependency (d); -} + if (spanner->internal_has_interface (ly_symbol2scm ("piano-pedal-interface"))) + { + setup_pedal_bracket(spanner); + } -void -Text_spanner::do_add_processing () -{ - set_bounds (LEFT, support_span_l_->spanned_drul_[LEFT]); - set_bounds (RIGHT, support_span_l_->spanned_drul_[RIGHT]); -} + /* Ugh, must be same as Hairpin::brew_molecule. */ + Real padding = gh_scm2double (me->get_grob_property ("if-text-padding")); + Real broken_left = spanner->get_broken_left_end_align (); + Real width = spanner->spanner_length (); + width -= broken_left; -Text_spanner::Text_spanner() -{ - spec_p_ = 0; - support_span_l_ = 0; -} + Drul_array broken; + Drul_array extra_off; + Direction d = LEFT; + do + { + extra_off [d]=0; + Item *b = spanner->get_bound (d); + broken[d] = b->break_status_dir () != CENTER; + if (!broken [d]) + { -IMPLEMENT_IS_TYPE_B1(Text_spanner,Spanner); + Interval e = b->extent (b, X_AXIS); + Real r = 0.0; + if (!e.empty_b ()) + r = e[-d] + padding; -void -Text_spanner::do_print() const -{ - spec_p_->print(); -} + /* Text spanners such as ottava, should span from outer limits of + noteheads, iso (de)cresc. spanners that span the inner space */ + if (me->get_grob_property ("outer") != SCM_EOL) + { + width -= d * r; + } + else + { + width += d * r; + extra_off[d] = r; + } + } + } + while (flip (&d) != LEFT); -void -Text_spanner::do_post_processing() -{ - text_off_ = support_span_l_->center() + - Offset (0,support_span_l_->dir_ * paper()->internote_f () * 4); // todo -} + // FIXME: ecs tells us -- only for (de)cresc. spanners + width += gh_scm2double (me->get_grob_property ("width-correct")); + /* /Ugh */ -Molecule* -Text_spanner::brew_molecule_p() const -{ - Atom tsym (spec_p_->get_atom (paper(),CENTER)); - tsym.translate (text_off_); + // who is ecs? --hwn - Molecule*output = new Molecule; - output->add_atom (tsym); - return output; -} + SCM properties = Font_interface::font_alist_chain (me); -void -Text_spanner::do_pre_processing() -{ - spanned_drul_ = support_span_l_->spanned_drul_; -} + SCM edge_text = me->get_grob_property ("edge-text"); + Drul_array edge; + if (gh_pair_p (edge_text)) + { + Direction d = LEFT; + do + { + /* Don't repeat edge text for broken end */ + if (!broken[d]) + { + SCM text = index_get_cell (edge_text, d); + edge[d] = Text_item::text2molecule (me, text, properties); + if (!edge[d].empty_b ()) + edge[d].align_to (Y_AXIS, CENTER); + } + } + while (flip (&d) != LEFT); + } + width -= edge[LEFT].extent (X_AXIS).length () + + edge[RIGHT].extent (X_AXIS).length (); -Interval -Text_spanner::height() const -{ - return brew_molecule_p()->extent ().y (); -} + Drul_array shorten; + shorten[LEFT] = 0; + shorten[RIGHT] = 0; -void -Text_spanner::do_substitute_dependency (Score_element* o, Score_element*n) -{ - if (support_span_l_ == o) - support_span_l_ = (Directional_spanner*) (n?n->access_Spanner ():0); + SCM s = me->get_grob_property ("shorten-pair"); + if (gh_pair_p (s)) + { + shorten[LEFT] = gh_scm2double (ly_car (s)); + shorten[RIGHT] = gh_scm2double (ly_cdr (s)); + } + + width -= shorten[LEFT] + shorten[RIGHT]; + + if (width < 0) + { + me->warning (_ ("Text_spanner too small")); + width = 0; + } + + /* ugh */ + + Real thick = me->get_paper ()->get_var ("linethickness"); + SCM st = me->get_grob_property ("thickness"); + if (gh_number_p (st)) + { + thick *= gh_scm2double (st); + + } + Molecule line = Line_spanner::line_molecule (me, thick, width, 0); + + Drul_array edge_line; + s = me->get_grob_property ("edge-height"); + SCM ew = me->get_grob_property ("edge-widen"); + if (gh_pair_p (s)) + { + Direction d = LEFT; + int dir = to_dir (me->get_grob_property ("direction")); + do + { + Real dx = ( gh_pair_p (ew) ? + gh_scm2double (index_get_cell (ew, d)) * d : + 0 ); + Real dy = gh_scm2double (index_get_cell (s, d)) * - dir; + if (dy) + { + edge_line[d] = Line_spanner::line_molecule (me, thick, dx, dy); + } + } + while (flip (&d) != LEFT); + } + + Molecule m; + if (!edge[LEFT].empty_b ()) + m = edge[LEFT]; + + if (!edge_line[LEFT].empty_b ()) + m.add_at_edge (X_AXIS, RIGHT, edge_line[LEFT], 0); + if (!line.empty_b ()) + m.add_at_edge (X_AXIS, RIGHT, line, + edge_line[LEFT].empty_b () ? 0 : -thick/2); + if (!edge_line[RIGHT].empty_b ()) + m.add_at_edge (X_AXIS, RIGHT, edge_line[RIGHT], -thick/2); + if (!edge[RIGHT].empty_b ()) + m.add_at_edge (X_AXIS, RIGHT, edge[RIGHT], 0); + m.translate_axis (broken_left + extra_off[LEFT] + shorten[LEFT], X_AXIS); + + return m.smobbed_copy (); } -Text_spanner::~Text_spanner() + + +/* + Piano pedal brackets are a special case of a text spanner. + Pedal up-down (restart) indicated by the angled right and left edges + of consecutive pedals touching exactly to form an __/\__ + Chris Jackson +*/ + +void +Text_spanner::setup_pedal_bracket(Spanner *me) { - delete spec_p_; + + Real thick = me->get_paper ()->get_var ("linethickness"); + SCM st = me->get_grob_property ("thickness"); + if (gh_number_p (st)) + { + thick *= gh_scm2double (st); + } + + Drul_array broken; + Drul_array height, width, shorten, r; + + SCM pa = me->get_grob_property ("if-text-padding"); + SCM ew = me->get_grob_property ("edge-widen"); + SCM eh = me->get_grob_property ("edge-height"); + SCM sp = me->get_grob_property ("shorten-pair"); + + Direction d = LEFT; + Interval e; + Real padding = 0; + + if (gh_number_p (pa) ) + padding = gh_scm2double (pa); + + do + { + Item *b = me->get_bound (d); + + e = b->extent (b, X_AXIS); + if (!e.empty_b ()) + r[d] = d * (e[-d] + padding); + + broken[d] = b->break_status_dir () != CENTER; + width[d] = 0; + height[d] = 0; + shorten[d] = 0; + if ( ly_number_pair_p (ew) ) + width[d] += gh_scm2double (index_get_cell (ew, d)); + if ( !broken[d] && (ly_number_pair_p (eh) ) ) + height[d] += gh_scm2double (index_get_cell (eh, d)); + if ( ly_number_pair_p (sp) ) + shorten[d] += gh_scm2double (index_get_cell (sp, d)); + } + while (flip (&d) != LEFT); + + Real extra_short = 0; + // For 'Mixed' style pedals, i.e. a bracket preceded by text: Ped._____| + // need to shorten by the extent of the text grob + if ( to_boolean (me->get_grob_property ("text-start")) ) + { + height[LEFT] = 0; + extra_short = padding; + if (Grob *textbit = unsmob_grob (me->get_grob_property("pedal-text"))) + { + if (textbit->internal_has_interface(ly_symbol2scm("text-interface"))) + // for plain text, e.g., Sost. Ped. + { + SCM text = textbit->get_grob_property("text"); + if (gh_string_p (text)) { + SCM properties = Font_interface::font_alist_chain (me); + Molecule mol = Text_item::text2molecule (me, text, properties); + extra_short += mol.extent(X_AXIS).length() / 2; + } + } + } + shorten[RIGHT] -= thick; + } + + shorten[LEFT] += extra_short ; + + if (broken[LEFT]) + { + shorten[LEFT] -= me->get_broken_left_end_align () ; + shorten[RIGHT] += abs(width[RIGHT]) + thick - r[RIGHT]; + } + + else + { + // Shorten a ____/ on the right so that it will touch an adjoining \___ + shorten[RIGHT] += abs(width[LEFT]) + abs(width[RIGHT]) + thick; + // Also shorten so that it ends just before the spanned note. + shorten[RIGHT] -= (r[LEFT] + r[RIGHT]); + } + + me->set_grob_property ("edge-height", ly_interval2scm (height)); + me->set_grob_property ("edge-widen", ly_interval2scm(width)); + me->set_grob_property ("shorten-pair", ly_interval2scm (shorten)); } -Text_spanner::Text_spanner (Text_spanner const&s) - : Spanner (s) + +struct Pianopedal { - support_span_l_ = s.support_span_l_; - spec_p_ = s.spec_p_? s.spec_p_->clone() : 0; - text_off_ = s.text_off_; -} + static bool has_interface (Grob*); +}; +ADD_INTERFACE (Pianopedal,"piano-pedal-interface", + "", + "pedal-type edge-widen edge-height shorten-pair text-start left-widen right-widen pedal-text"); + +ADD_INTERFACE (Text_spanner,"text-spanner-interface", + "generic text spanner", + "dash-period if-text-padding dash-length edge-height edge-widen edge-text shorten-pair type thickness outer width-correct"); +