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source file of the GNU LilyPond music typesetter
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(c) 2000--2004 Jan Nieuwenhuizen <janneke@gnu.org>
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(c) 2000--2006 Jan Nieuwenhuizen <janneke@gnu.org>
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Revised over good by Han-Wen.
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Revised over good by Han-Wen.
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#include "text-item.hh"
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#include "text-spanner.hh"
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#include "text-interface.hh"
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#include "line-spanner.hh"
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#include "spanner.hh"
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#include "font-interface.hh"
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#include "dimensions.hh"
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#include "paper-def.hh"
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#include "output-def.hh"
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#include "paper-column.hh"
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#include "staff-symbol-referencer.hh"
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TODO: this function is too long
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Text_spanner::print (SCM smob)
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Text_spanner::print (SCM smob)
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Grob *me= unsmob_grob (smob);
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Spanner *spanner = dynamic_cast<Spanner*> (me);
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Grob *me = unsmob_grob (smob);
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Spanner *spanner = dynamic_cast<Spanner *> (me);
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/* Ugh, must be same as Hairpin::print. */
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Grob *common = spanner->get_bound (LEFT)->common_refpoint (spanner->get_bound (RIGHT), X_AXIS);
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Paper_def * paper = me->get_paper ();
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Output_def *layout = me->layout ();
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SCM flare = me->get_property ("bracket-flare");
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SCM shorten = me->get_property ("shorten-pair");
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span_points[d] = b->relative_coordinate (common, X_AXIS);
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Real encl = robust_scm2double (me->get_property ("enclose-bounds"), 0.0);
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span_points[d] = b->extent (common, X_AXIS).linear_combination (d * encl);
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if (is_number_pair (shorten))
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span_points -= d * gh_scm2double (index_get_cell (shorten, d));
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Real encl = robust_scm2double (me->get_property ("enclose-bounds"), 0.0);
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Interval ext = b->extent (common, X_AXIS);
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= robust_relative_extent (b, common, X_AXIS).linear_combination (d * encl);
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if (is_number_pair (shorten))
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span_points -= d * scm_to_double (index_get_cell (shorten, d));
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if (is_number_pair (flare))
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span_points -= d * gh_scm2double (index_get_cell (flare, d));
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span_points -= d * scm_to_double (index_get_cell (flare, d));
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while (flip (&d) != LEFT);
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SCM properties = Font_interface::text_font_alist_chain (me);
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SCM edge_text = me->get_property ("edge-text");
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Drul_array<Stencil> edge;
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if (gh_pair_p (edge_text))
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if (scm_is_pair (edge_text))
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Direction d = LEFT;
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SCM text = index_get_cell (edge_text, d);
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if (Text_item::markup_p (text))
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edge[d] = *unsmob_stencil (Text_item::interpret_markup (paper->self_scm (), properties, text));
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if (Text_interface::is_markup (text))
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edge[d] = *unsmob_stencil (Text_interface::interpret_markup (layout->self_scm (), properties, text));
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if (!edge[d].is_empty ())
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edge[d].align_to (Y_AXIS, CENTER);
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while (flip (&d) != LEFT);
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Drul_array<Real> edge_height = robust_scm2interval (me->get_property ("edge-height"),
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Interval (0.0, 0.0));
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Drul_array<Stencil> edge_line;
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int dir = to_dir (me->get_property ("direction"));
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if (is_number_pair (flare))
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dx = gh_scm2double (index_get_cell (flare, d)) * d;
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Real dy = - dir * edge_height[d] ;
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edge_line[d] = Line_spanner::line_stencil (me, Offset (0,0), Offset (dx, dy));
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while (flip (&d) != LEFT);
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int dir = to_dir (me->get_property ("direction"));
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if (is_number_pair (flare))
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dx = scm_to_double (index_get_cell (flare, d)) * d;
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Real dy = -dir * edge_height[d];
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edge_line[d] = Line_spanner::line_stencil (me, Offset (0, 0), Offset (dx, dy));
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while (flip (&d) != LEFT);
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Interval ext = edge[d].extent (X_AXIS);
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if (!ext.is_empty ())
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Real pad = robust_scm2double (me->get_property ("bound-padding"), 0.0);
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edge[d].translate_axis (span_points[d], X_AXIS);
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m.add_stencil (edge[d]);
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span_points[d] += -d * ext[-d];
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span_points[d] += -d * (ext[-d] + pad);
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while (flip (&d) != LEFT);
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if (d* span_points[d] > d * edge[-d].extent (X_AXIS)[d])
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if (d * span_points[d] > d * edge[-d].extent (X_AXIS)[d])
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edge_line[d].translate_axis (span_points[d], X_AXIS);
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m.add_stencil (edge_line[d]);
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while (flip (&d) != LEFT);
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if (!span_points.is_empty ())
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if (!span_points.is_empty ()
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&& span_points.length () > robust_scm2double (me->get_property ("dash-period"), 0.0))
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Stencil l =Line_spanner::line_stencil (me, Offset (span_points[LEFT], 0),
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Offset (span_points[RIGHT], 0));
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Stencil l = Line_spanner::line_stencil (me,
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Offset (span_points[LEFT], 0),
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Offset (span_points[RIGHT], 0));
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m.add_stencil (l);
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m.translate_axis (- me->relative_coordinate (common, X_AXIS), X_AXIS);
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return m.smobbed_copy ();
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ADD_INTERFACE (Text_spanner,"text-spanner-interface",
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ADD_INTERFACE (Text_spanner,
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"text-spanner-interface",
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"generic text spanner",
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"dash-period if-text-padding dash-fraction edge-height bracket-flare edge-text shorten-pair style thickness enclose-bounds");