X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=lily%2Ftext-spanner.cc;h=ea4c25074a2ed7f03b5592b6277660c615dcefc0;hb=9e69cb84d6ee5b0a861cd97869b10e3bdf0c833c;hp=23220c7559ef615f2d9ac542c806985e35f5cdc2;hpb=be201adb38c131af8766b5fcd8cb8417fb9315c4;p=lilypond.git diff --git a/lily/text-spanner.cc b/lily/text-spanner.cc index 23220c7559..ea4c25074a 100644 --- a/lily/text-spanner.cc +++ b/lily/text-spanner.cc @@ -1,21 +1,22 @@ /* + text-spanner.cc -- implement Text_spanner -text-spanner.cc -- implement Text_spanner + source file of the GNU LilyPond music typesetter -source file of the GNU LilyPond music typesetter + (c) 2000--2006 Jan Nieuwenhuizen -(c) 2000--2002 Jan Nieuwenhuizen + Revised over good by Han-Wen. */ -#include "molecule.hh" -#include "text-item.hh" #include "text-spanner.hh" + +#include "text-interface.hh" #include "line-spanner.hh" #include "spanner.hh" #include "font-interface.hh" #include "dimensions.hh" -#include "paper-def.hh" -#include "debug.hh" +#include "output-def.hh" +#include "warn.hh" #include "paper-column.hh" #include "staff-symbol-referencer.hh" @@ -27,269 +28,151 @@ source file of the GNU LilyPond music typesetter - more texts/positions */ -MAKE_SCHEME_CALLBACK (Text_spanner, brew_molecule, 1); +MAKE_SCHEME_CALLBACK (Text_spanner, print, 1); /* - TODO: this function is too long, too hairy. - - TODO: document this. What the heck is happening here? + TODO: this function is too long */ SCM -Text_spanner::brew_molecule (SCM smob) +Text_spanner::print (SCM smob) { - Grob *me= unsmob_grob (smob); - Spanner *spanner = dynamic_cast (me); - - if (spanner->internal_has_interface (ly_symbol2scm ("piano-pedal-interface"))) - { - setup_pedal_bracket(spanner); - } + Grob *me = unsmob_grob (smob); + Spanner *spanner = dynamic_cast (me); - /* 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; + /* Ugh, must be same as Hairpin::print. */ + Grob *common = spanner->get_bound (LEFT)->common_refpoint (spanner->get_bound (RIGHT), X_AXIS); + Output_def *layout = me->layout (); + + SCM flare = me->get_property ("bracket-flare"); + SCM shorten = me->get_property ("shorten-pair"); + + Interval span_points; 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]) + if (broken[d]) { - - Interval e = b->extent (b, X_AXIS); - Real r = 0.0; - if (!e.empty_b ()) - r = e[-d] + padding; - - /* 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; - } + if (d == LEFT) + span_points[d] = spanner->get_broken_left_end_align (); else - { - width += d * r; - extra_off[d] = r; - } + span_points[d] = b->relative_coordinate (common, X_AXIS); } - } - while (flip (&d) != LEFT); + else + { + Real encl = robust_scm2double (me->get_property ("enclose-bounds"), 0.0); + Interval ext = b->extent (common, X_AXIS); - // FIXME: ecs tells us -- only for (de)cresc. spanners - width += gh_scm2double (me->get_grob_property ("width-correct")); - /* /Ugh */ + span_points[d] + = robust_relative_extent (b, common, X_AXIS).linear_combination (d * encl); - // who is ecs? --hwn + if (is_number_pair (shorten)) + span_points -= d * scm_to_double (index_get_cell (shorten, d)); + } - SCM properties = Font_interface::font_alist_chain (me); + if (is_number_pair (flare)) + span_points -= d * scm_to_double (index_get_cell (flare, d)); + } + while (flip (&d) != LEFT); - SCM edge_text = me->get_grob_property ("edge-text"); - Drul_array edge; - if (gh_pair_p (edge_text)) + SCM properties = Font_interface::text_font_alist_chain (me); + SCM edge_text = me->get_property ("edge-text"); + Drul_array edge; + if (scm_is_pair (edge_text)) { Direction d = LEFT; do { - /* Don't repeat edge text for broken end */ - if (!broken[d]) - { - SCM text = index_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 (); + if (broken[d]) + continue; - Drul_array shorten; - shorten[LEFT] = 0; - shorten[RIGHT] = 0; + SCM text = index_get_cell (edge_text, d); - 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->paper_l ()->get_var ("linethickness"); - SCM st = me->get_grob_property ("thickness"); - if (gh_number_p (st)) - { - thick *= gh_scm2double (st); + if (Text_interface::is_markup (text)) + edge[d] = *unsmob_stencil (Text_interface::interpret_markup (layout->self_scm (), properties, text)); - } - 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-width"); - 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_cell (ew, d)) * - dir : - 0 ); - Real dy = gh_scm2double (index_cell (s, d)) * - dir; - if (dy) - { - edge_line[d] = Line_spanner::line_molecule (me, thick, dx, dy); - } + if (!edge[d].is_empty ()) + edge[d].align_to (Y_AXIS, CENTER); } 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 (); -} - - - - -/* - 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) -{ - - Real thick = me->paper_l ()->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-width"); - 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); + Drul_array edge_height = robust_scm2interval (me->get_property ("edge-height"), + Interval (0.0, 0.0)); + Drul_array edge_line; + { + Direction d = LEFT; + int dir = to_dir (me->get_property ("direction")); + do + { + if (broken[d]) + continue; + + Real dx = 0.0; + if (is_number_pair (flare)) + dx = scm_to_double (index_get_cell (flare, d)) * d; + + Real dy = -dir * edge_height[d]; + if (dy) + edge_line[d] = Line_spanner::line_stencil (me, Offset (0, 0), Offset (dx, dy)); + } + while (flip (&d) != LEFT); + } + + Stencil m; 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 ( gh_pair_p (ew) ) - width[d] += gh_scm2double (index_cell (ew, d)) * d; - if ( !broken[d] && (gh_pair_p (eh) ) ) - height[d] += gh_scm2double (index_cell (eh, d)); - if ( gh_pair_p (sp) ) - shorten[d] += gh_scm2double (index_cell (sp, d)); + Interval ext = edge[d].extent (X_AXIS); + if (!ext.is_empty ()) + { + Real pad = robust_scm2double (me->get_property ("bound-padding"), 0.0); + edge[d].translate_axis (span_points[d], X_AXIS); + m.add_stencil (edge[d]); + span_points[d] += -d * (ext[-d] + pad); + } } 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")) ) + + do { - height[LEFT] = 0; - Grob * textbit = me->get_parent(Y_AXIS); - extra_short = padding; - if (textbit->internal_has_interface(ly_symbol2scm("text-interface"))) - // for plain text, e.g., Sost. Ped. + if (d * span_points[d] > d * edge[-d].extent (X_AXIS)[d]) { - 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; - } + edge_line[d].translate_axis (span_points[d], X_AXIS); + m.add_stencil (edge_line[d]); } - shorten[RIGHT] -= thick; } + while (flip (&d) != LEFT); - shorten[LEFT] += extra_short ; - if (broken[LEFT]) + if (!span_points.is_empty () + && span_points.length () > robust_scm2double (me->get_property ("dash-period"), 0.0)) { - shorten[LEFT] -= me->get_broken_left_end_align () ; - shorten[RIGHT] += abs(width[RIGHT]) + thick - r[RIGHT]; + Stencil l = Line_spanner::line_stencil (me, + Offset (span_points[LEFT], 0), + Offset (span_points[RIGHT], 0)); + m.add_stencil (l); } - - 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-width", ly_interval2scm(width)); - me->set_grob_property ("shorten-pair", ly_interval2scm (shorten)); + m.translate_axis (- me->relative_coordinate (common, X_AXIS), X_AXIS); + return m.smobbed_copy (); } +ADD_INTERFACE (Text_spanner, -struct Pianopedal -{ - static bool has_interface (Grob*); -}; -ADD_INTERFACE (Pianopedal,"piano-pedal-interface", - "", - "pedal-type edge-width edge-height shorten-pair text-start left-widen right-widen"); - -ADD_INTERFACE (Text_spanner,"text-spanner-interface", "generic text spanner", - "dash-period if-text-padding dash-length edge-height edge-width edge-text shorten-pair type"); + + "bound-padding " + "bracket-flare " + "dash-fraction " + "dash-period " + "edge-height " + "edge-text " + "enclose-bounds " + "shorten-pair " + "style " + "thickness " + );