/*
This file is part of LilyPond, the GNU music typesetter.
- Copyright (C) 1997--2011 Han-Wen Nienhuys <hanwen@xs4all.nl>
+ Copyright (C) 1997--2014 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
*/
#include "bar-line.hh"
-
-#include "all-font-metrics.hh"
-#include "font-interface.hh"
-#include "line-interface.hh"
-#include "lookup.hh"
-#include "output-def.hh"
#include "paper-column.hh"
-#include "staff-symbol-referencer.hh"
-
-MAKE_SCHEME_CALLBACK (Bar_line, calc_bar_extent, 1)
-SCM
-Bar_line::calc_bar_extent (SCM smob)
-{
- Interval result;
- Grob *me = unsmob_grob (smob);
- if (Grob *staff = Staff_symbol_referencer::get_staff_symbol (me))
- result = staff->extent (staff, Y_AXIS);
-
- return ly_interval2scm (result);
-}
-
-Interval
-Bar_line::bar_y_extent (Grob *me, Grob *refpoint)
-{
- Interval iv = robust_scm2interval (me->get_property ("bar-extent"), Interval ());
-
- iv.translate (me->relative_coordinate (refpoint, Y_AXIS));
- return iv;
-}
bool
Bar_line::non_empty_barline (Grob *me)
{
- return has_interface (me) && !me->extent (me, X_AXIS).is_empty ();
-}
-
-MAKE_SCHEME_CALLBACK (Bar_line, print, 1);
-SCM
-Bar_line::print (SCM smob)
-{
- Grob *me = unsmob_grob (smob);
-
- SCM s = me->get_property ("glyph-name");
- SCM extent = me->get_property ("bar-extent");
-
- if (scm_is_string (s) && is_number_pair (extent))
- {
- string str = ly_scm2string (s);
- Interval ex = ly_scm2interval (extent);
- if (ex.length () > 0)
- {
- Stencil result = compound_barline (me, str, ex, false);
-
- return result.smobbed_copy ();
- }
- }
- return SCM_EOL;
-}
-
-Stencil
-Bar_line::compound_barline (Grob *me, string str, Interval const &extent,
- bool rounded)
-{
- Real kern = robust_scm2double (me->get_property ("kern"), 1);
- Real thinkern = robust_scm2double (me->get_property ("thin-kern"), 1);
- Real hair = robust_scm2double (me->get_property ("hair-thickness"), 1);
- Real fatline = robust_scm2double (me->get_property ("thick-thickness"), 1);
-
- Real staffline = me->layout ()->get_dimension (ly_symbol2scm ("line-thickness"));
- Real staff_space = Staff_symbol_referencer::staff_space (me);
-
- kern *= staffline;
- thinkern *= staffline;
- hair *= staffline;
- fatline *= staffline;
-
- Stencil thin = simple_barline (me, hair, extent, rounded);
- Stencil thick = simple_barline (me, fatline, extent, rounded);
- Stencil dot = Font_interface::get_default_font (me)->find_by_name ("dots.dot");
-
- int lines = Staff_symbol_referencer::line_count (me);
- Real dist
- = ((lines & 1 || lines == 0)
- ? 1
- : (staff_space < 2 ? 2 : .5)) * staff_space;
- Stencil colon (dot);
- colon.translate_axis (dist, Y_AXIS);
- colon.add_stencil (dot);
- colon.translate_axis (-dist / 2, Y_AXIS);
-
- Real const h = extent.length ();
- Stencil m;
-
- if (str == "||:")
- str = "|:";
-
- if (str == "|S" || str == "S|")
- str = "S";
-
- if (str == "")
- {
- Stencil empty = Lookup::blank (Box (Interval (0, 0), extent));
- return empty;
- }
- else if (str == "|")
- return thin;
- else if (str == ".")
- return thick;
- else if (str == "|." || (h == 0 && str == ":|"))
- {
- m.add_at_edge (X_AXIS, LEFT, thick, 0);
- m.add_at_edge (X_AXIS, LEFT, thin, kern);
- }
- else if (str == ".|" || (h == 0 && str == "|:"))
- {
- m.add_at_edge (X_AXIS, RIGHT, thick, 0);
- m.add_at_edge (X_AXIS, RIGHT, thin, kern);
- }
- else if (str == ":|")
- {
- m.add_at_edge (X_AXIS, LEFT, thick, 0);
- m.add_at_edge (X_AXIS, LEFT, thin, kern);
- m.add_at_edge (X_AXIS, LEFT, colon, kern);
- }
- else if (str == "|:")
- {
- m.add_at_edge (X_AXIS, RIGHT, thick, 0);
- m.add_at_edge (X_AXIS, RIGHT, thin, kern);
- m.add_at_edge (X_AXIS, RIGHT, colon, kern);
- }
- else if (str == ":|:")
- {
- m.add_at_edge (X_AXIS, LEFT, thick, thinkern);
- m.add_at_edge (X_AXIS, LEFT, colon, kern);
- m.add_at_edge (X_AXIS, RIGHT, thick, kern);
- m.add_at_edge (X_AXIS, RIGHT, colon, kern);
- }
- else if (str == ":|.|:")
- {
- m.add_at_edge (X_AXIS, LEFT, thick, 0);
- m.add_at_edge (X_AXIS, LEFT, thin, kern);
- m.add_at_edge (X_AXIS, LEFT, colon, kern);
- m.add_at_edge (X_AXIS, RIGHT, thin, kern);
- m.add_at_edge (X_AXIS, RIGHT, colon, kern);
- }
- else if (str == ":|.:")
- {
- m.add_at_edge (X_AXIS, LEFT, thick, 0);
- m.add_at_edge (X_AXIS, LEFT, thin, kern);
- m.add_at_edge (X_AXIS, LEFT, colon, kern);
- m.add_at_edge (X_AXIS, RIGHT, colon, kern);
- }
- else if (str == ".|.")
- {
- m.add_at_edge (X_AXIS, LEFT, thick, thinkern);
- m.add_at_edge (X_AXIS, RIGHT, thick, kern);
- }
- else if (str == "|.|")
- {
- m.add_at_edge (X_AXIS, LEFT, thick, 0);
- m.add_at_edge (X_AXIS, LEFT, thin, kern);
- m.add_at_edge (X_AXIS, RIGHT, thin, kern);
- }
- else if (str == "||")
- {
- /*
- should align to other side? this never appears
- on the system-start?
- m.add_at_edge (X_AXIS, RIGHT, thin, 0);
- m.add_at_edge (X_AXIS, RIGHT, thin, thinkern);
- */
- m.add_at_edge (X_AXIS, LEFT, thin, thinkern);
- m.add_at_edge (X_AXIS, RIGHT, thin, thinkern);
- }
- else if (str.find ("S") != NPOS || str == "|._.|")
- {
- // Handle all varsegno stuff
- Stencil segno;
- segno.add_at_edge (X_AXIS, LEFT, thin, thinkern);
- segno.add_at_edge (X_AXIS, RIGHT, thin, thinkern);
- segno.add_stencil (Font_interface::get_default_font (me)->find_by_name ("scripts.varsegno"));
-
- if (str == "S")
- m.add_stencil (segno);
- else if (str == "S|:" || str == ".S|:")
- {
- m.add_at_edge (X_AXIS, RIGHT, thick, 0);
- m.add_at_edge (X_AXIS, RIGHT, thin, kern);
- m.add_at_edge (X_AXIS, RIGHT, colon, kern);
- m.add_at_edge (X_AXIS, LEFT, segno, thinkern);
- }
- else if (str == ":|S" || str == ":|S.")
- {
- m.add_at_edge (X_AXIS, LEFT, thick, 0);
- m.add_at_edge (X_AXIS, LEFT, thin, kern);
- m.add_at_edge (X_AXIS, LEFT, colon, kern);
- m.add_at_edge (X_AXIS, RIGHT, segno, thinkern);
- }
- else if (str == ":|S|:" || str == ":|S.|:")
- {
- m.add_at_edge (X_AXIS, LEFT, thick, 0);
- m.add_at_edge (X_AXIS, LEFT, thin, kern);
- m.add_at_edge (X_AXIS, LEFT, colon, kern);
- m.add_at_edge (X_AXIS, RIGHT, segno, thinkern);
- m.add_at_edge (X_AXIS, RIGHT, thick, thinkern);
- m.add_at_edge (X_AXIS, RIGHT, thin, kern);
- m.add_at_edge (X_AXIS, RIGHT, colon, kern);
- }
- else if (str == "|._.|") // :|S|: or :|S.|: without segno and colon
- {
- // get the width of the segno sign
- Real segno_width = segno.extent (X_AXIS).length ();
- m.add_at_edge (X_AXIS, LEFT, thick, 0);
- m.add_at_edge (X_AXIS, LEFT, thin, kern);
- m.add_at_edge (X_AXIS, RIGHT, thick, segno_width + 2 * thinkern);
- m.add_at_edge (X_AXIS, RIGHT, thin, kern);
- }
- // end varsegno block
- }
- else if (str == ":")
- {
- if (Grob *staff = Staff_symbol_referencer::get_staff_symbol (me))
- {
- Interval staff_extent = staff->extent (staff, Y_AXIS);
-
- /*
- assume staff lines are disposed equally at unit space;
- put a dot into each space within extent (may extend staff_extent).
-
- staff_extent is an interval of two integers or two half-integers;
- in the former case dots are to be placed at half-integers,
- in the latter at integers.
-
- these integers are not exact due to staff line thickness.
- */
- int const pos = int (rint (staff_extent.at (UP) * 2));
- Real const correction = pos & 1 ? 0.0 : 0.5;
-
- for (int i = int (rint (extent.at (DOWN) + (0.5 - correction))),
- e = int (rint (extent.at (UP) + (0.5 - correction)));
- i < e;
- ++i)
- {
- Stencil d (dot);
-
- d.translate_axis (i + correction, Y_AXIS);
- m.add_stencil (d);
- }
- }
- }
- else if (str == "dashed")
- m = dashed_bar_line (me, extent, hair);
- else if (str == "'")
- m = tick_bar_line (me, extent.at (UP), rounded);
-
- return m;
-}
-
-Stencil
-Bar_line::simple_barline (Grob *me,
- Real w,
- Interval const &extent,
- bool rounded)
-{
- Real blot
- = rounded
- ? me->layout ()->get_dimension (ly_symbol2scm ("blot-diameter"))
- : 0.0;
-
- return Lookup::round_filled_box (Box (Interval (0, w), extent), blot);
-}
-
-Stencil
-Bar_line::tick_bar_line (Grob *me, Real h, bool rounded)
-{
- Real th = Staff_symbol_referencer::staff_space (me) / 2;
- Real line_thick = Staff_symbol_referencer::line_thickness (me);
-
- Real blot
- = rounded
- ? me->layout ()->get_dimension (ly_symbol2scm ("blot-diameter"))
- : 0.0;
-
- return Lookup::round_filled_box (Box (Interval (0, line_thick),
- Interval (h - th, h + th)), blot);
+ return me->internal_has_interface (ly_symbol2scm ("bar-line-interface"))
+ && !me->extent (me, X_AXIS).is_empty ();
}
-
-Stencil
-Bar_line::dashed_bar_line (Grob *me, Interval const &extent, Real thick)
-{
- Real dash_size
- = 1.0 - robust_scm2double (me->get_property ("gap"), 0.3);
- /*
- this is a tad complex for what we want to achieve, but with a
- simple line, the round blotting interferes with staff line
- connections.
- */
- Real ss = Staff_symbol_referencer::staff_space (me);
- Real const h = extent.length ();
- int dashes = int (rint (h / ss));
-
- /*
- there are two concerns:
- 1. one dash plus one space should be one staff space
- 2. the line should begin and end with half a dash
-
- both can be satisfied, if the extent is (roughly) an integer
- multiple of staff space.
- */
- if (fabs (h / ss - dashes) < 0.1)
- {
- Real blot
- = me->layout ()->get_dimension (ly_symbol2scm ("blot-diameter"));
-
- Real const half_dash = dash_size / 2;
- Stencil bar;
-
- for (int i = 0; i <= dashes; ++i)
- {
- Real top_y = extent.at (DOWN)
- + (i == dashes ? h : (i + half_dash) * ss);
- Real bot_y = extent.at (DOWN) + (i ? (i - half_dash) * ss : 0.0);
-
- bar.add_stencil (Lookup::round_filled_box (Box (Interval (0, thick),
- Interval (bot_y, top_y)),
- blot));
- }
- return bar;
- }
- else
- {
- /*
- We have to scale the dashing so it starts and ends with half a
- dash exactly.
- */
- Real total_dash_size = h / dashes;
- Real factor = (dash_size - thick) / ss;
-
- SCM at = scm_list_n (ly_symbol2scm ("dashed-line"),
- scm_from_double (thick),
- scm_from_double (factor * total_dash_size),
- scm_from_double ((1 - factor) * total_dash_size),
- scm_from_double (0),
- scm_from_double (h),
- scm_from_double (factor * total_dash_size * 0.5),
- SCM_UNDEFINED);
-
- Box box;
- box.add_point (Offset (0, 0));
- box.add_point (Offset (0, h));
-
- Stencil s (box, at);
- s.translate (Offset (thick / 2, extent.at (DOWN)));
- return s;
- }
- return Stencil ();
-}
-
-MAKE_SCHEME_CALLBACK (Bar_line, calc_anchor, 1)
-SCM
-Bar_line::calc_anchor (SCM smob)
-{
- Grob *me = unsmob_grob (smob);
- Real kern = robust_scm2double (me->get_property ("kern"), 1);
- Real staffline = me->layout ()->get_dimension (ly_symbol2scm ("line-thickness"));
- string str = robust_scm2string (me->get_property ("glyph-name"), "");
-
- /* we put the anchor in the center of the barline, unless we are
- a repeat bar, in which case we put the anchor in the center of
- the barline without the dots. */
- Interval ext = me->extent (me, X_AXIS);
- if (ext.is_empty ())
- return scm_from_double (0);
-
- Real anchor = ext.center ();
-
- Stencil dot = Font_interface::get_default_font (me)->find_by_name ("dots.dot");
- Real dot_width = dot.extent (X_AXIS).length () + kern * staffline;
- if (str == "|:")
- anchor -= dot_width / 2;
- else if (str == ":|")
- anchor += dot_width / 2;
-
- return scm_from_double (anchor);
-}
-
-ADD_INTERFACE (Bar_line,
- "Bar line.\n"
- "\n"
- "Print a special bar symbol. It replaces the regular bar"
- " symbol with a special symbol. The argument @var{bartype}"
- " is a string which specifies the kind of bar line to print."
- " Options are @code{|}, @code{:|}, @code{|:}, @code{:|:}, @code{:|.|:},"
- " @code{:|.:}, @code{.}, @code{||}, @code{|.}, @code{.|}, @code{.|.},"
- " @code{|.|}, @code{:}, @code{dashed}, @code{'} and @code{S}.\n"
- "\n"
- "These produce, respectively, a normal bar line, a right repeat, a left repeat,"
- " a thick double repeat, a thin-thick-thin double repeat,"
- " a thin-thick double repeat, a thick bar, a double bar, a start bar,"
- " an end bar, a thick double bar, a thin-thick-thin bar,"
- " a dotted bar, a dashed bar, a tick as bar line and a segno bar.\n"
- "\n"
- "In addition, there is an option"
- " @code{||:} which is equivalent to @code{|:} except at line"
- " breaks, where it produces a double bar (@code{||}) at the"
- " end of the line and a repeat sign (@code{|:}) at the"
- " beginning of the new line.\n"
- "\n"
- "For segno, @code{S} produces a segno sign except at line breaks,"
- " where it produces a double bar (@code{||}) at the"
- " end of the line and a segno sign at the beginning of the new line."
- " @code{|S} is equivalent to @code{S} but produces a simple bar line"
- " (@code{|}) instead of a double bar line (@code{||}) at line breaks."
- " @code{S|} produces the segno sign at line breaks and starts the following"
- " line without special bar lines.\n"
- "\n"
- "@code{S|:} and @code{:|S} are used for repeat/segno combinations that are"
- " separated at line breaks. Alternatively, @code{.S|:} and @code{:|S.}"
- " may be used which combine repeat signs and segno at the same line in"
- " case of a line break. @code{:|S|:} is a combination of a left repeat"
- " (@code{:|}), a segno (@code{S}) and a right repeat @code{|:} which"
- " splits before the segno at line breaks; @code{:|S.|:} splits after"
- " the segno sign.\n"
- "\n"
- "If @var{bartype} is set to @code{empty} then nothing is"
- " printed, but a line break is allowed at that spot.\n"
- "\n"
- "@code{gap} is used for the gaps in dashed bar lines.",
-
- /* properties */
- "allow-span-bar "
- "gap "
- "kern "
- "thin-kern "
- "hair-thickness "
- "thick-thickness "
- "glyph "
- "glyph-name "
- "bar-extent "
- );
projects / lilypond.git / blobdiff