/*
- figured-bass-continuation.cc -- implement Figured_bass_continuation
+ This file is part of LilyPond, the GNU music typesetter.
- source file of the GNU LilyPond music typesetter
+ Copyright (C) 2005--2015 Han-Wen Nienhuys <hanwen@xs4all.nl>
- (c) 2005 Han-Wen Nienhuys <hanwen@xs4all.nl>
+ 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 <http://www.gnu.org/licenses/>.
*/
#include "line-interface.hh"
-#include "lily-guile.hh"
#include "spanner.hh"
#include "output-def.hh"
#include "item.hh"
#include "pointer-group-interface.hh"
#include "axis-group-interface.hh"
-
#include "horizontal-bracket.hh"
-struct Figured_bass_bracket
-{
- static bool has_interface (Grob*);
-
-public:
- DECLARE_SCHEME_CALLBACK(print, (SCM));
-};
-
-
-ADD_INTERFACE(Figured_bass_bracket,
- "figured-bass-bracket-interface",
- "Brackets alongside bass figures.",
-
- /* props */
-
- /* ugh: should make bracket interface. */
- "bracket-flare "
- "shorten-pair "
- "edge-height "
- "padding "
- "thickness "
- "elements "
- );
-
-MAKE_SCHEME_CALLBACK (Figured_bass_bracket, print, 1);
-SCM
-Figured_bass_bracket::print (SCM grob)
-{
- Grob *me = unsmob_grob (grob);
- extract_grob_set (me, "elements", elements);
- if (elements.is_empty ())
- {
- me->suicide ();
- return SCM_EOL;
- }
-
- Grob *common_x = common_refpoint_of_array (elements, me, X_AXIS);
- Interval xext = Axis_group_interface::relative_group_extent (elements, common_x, X_AXIS);
-
- Stencil left_br = Horizontal_bracket::make_bracket (me, me, elements,
- Y_AXIS, LEFT);
- Stencil right_br = Horizontal_bracket::make_bracket (me, me, elements,
- Y_AXIS, RIGHT);
-
- xext.widen (robust_scm2double (me->get_property ("padding"), 0.25));
- left_br.translate_axis (xext[LEFT], X_AXIS);
- right_br.translate_axis (xext[RIGHT], X_AXIS);
-
- left_br.add_stencil (right_br);
- left_br.translate_axis (-me->relative_coordinate (common_x, X_AXIS), X_AXIS);
- return left_br.smobbed_copy ();
-}
-
-
struct Figured_bass_continuation
{
- static bool has_interface (Grob*);
-
+
public:
- DECLARE_SCHEME_CALLBACK(print, (SCM));
- DECLARE_SCHEME_CALLBACK(center_on_figures, (SCM, SCM));
+ DECLARE_SCHEME_CALLBACK (print, (SCM));
+ DECLARE_SCHEME_CALLBACK (center_on_figures, (SCM));
};
-MAKE_SCHEME_CALLBACK (Figured_bass_continuation, center_on_figures, 2);
+MAKE_SCHEME_CALLBACK (Figured_bass_continuation, center_on_figures, 1);
SCM
-Figured_bass_continuation::center_on_figures (SCM grob, SCM axis)
+Figured_bass_continuation::center_on_figures (SCM grob)
{
- Spanner *me = dynamic_cast<Spanner*> (unsmob_grob (grob));
- (void) axis;
-
+ Spanner *me = unsmob<Spanner> (grob);
extract_grob_set (me, "figures", figures);
+ if (figures.empty ())
+ return scm_from_double (0.0);
Grob *common = common_refpoint_of_array (figures, me, Y_AXIS);
Interval ext = Axis_group_interface::relative_group_extent (figures, common, Y_AXIS);
-
+ if (ext.is_empty ())
+ return scm_from_double (0.0);
return scm_from_double (ext.center () - me->relative_coordinate (common, Y_AXIS));
}
SCM
Figured_bass_continuation::print (SCM grob)
{
- Spanner *me = dynamic_cast<Spanner*> (unsmob_grob (grob));
+ Spanner *me = unsmob<Spanner> (grob);
+
+ Real thick
+ = me->layout ()->get_dimension (ly_symbol2scm ("line-thickness"))
+ * robust_scm2double (me->get_property ("thickness"), 1);
- Real thick =
- me->get_layout ()->get_dimension (ly_symbol2scm ("linethickness"))
- * robust_scm2double (me->get_property ("thickness"), 1);
-
Interval spanned;
- Direction d = LEFT;
+
Grob *common = me->get_bound (LEFT)->common_refpoint (me->get_bound (RIGHT),
- X_AXIS);
- do
+ X_AXIS);
+ for (LEFT_and_RIGHT (d))
{
- spanned[d]
- = robust_relative_extent (me->get_bound (d), common, X_AXIS)[RIGHT]
- - me->relative_coordinate (common, X_AXIS);
+ Item *bound = me->get_bound (d);
+ Direction extdir
+ = (d == LEFT && to_boolean (bound->get_property ("implicit")))
+ ? LEFT : RIGHT;
+
+ spanned[d]
+ = robust_relative_extent (bound, common, X_AXIS)[extdir]
+ - me->relative_coordinate (common, X_AXIS);
}
- while (flip (&d) != LEFT);
spanned.widen (- robust_scm2double (me->get_property ("padding"), 0.2));
-
+
Stencil extender;
if (!spanned.is_empty ())
extender = Line_interface::make_line (thick,
- Offset (spanned[LEFT], 0),
- Offset (spanned[RIGHT], 0));
-
+ Offset (spanned[LEFT], 0),
+ Offset (spanned[RIGHT], 0));
+
return extender.smobbed_copy ();
}
-ADD_INTERFACE(Figured_bass_continuation,
- "figured-bass-continuation-interface",
- "Simple extender line between bounds.",
-
- /* props */
- "thickness "
- "padding "
- "figures "
- );
-
+ADD_INTERFACE (Figured_bass_continuation,
+ "Simple extender line between bounds.",
+
+ /* properties */
+ "thickness "
+ "padding "
+ "figures "
+ );
+
projects / lilypond.git / blobdiff