source file of the GNU LilyPond music typesetter
- (c) 1997--1999 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+ (c) 1997--2006 Han-Wen Nienhuys <hanwen@xs4all.nl>
*/
-#include "molecule.hh"
-#include "paper-def.hh"
-#include "lookup.hh"
#include "rest.hh"
+
+#include "directional-element-interface.hh"
#include "dots.hh"
-#include "axis-group-element.hh"
-#include "p-score.hh"
+#include "font-interface.hh"
+#include "international.hh"
+#include "output-def.hh"
+#include "paper-score.hh"
+#include "staff-symbol-referencer.hh"
+#include "stencil.hh"
-void
-Rest::do_add_processing ()
+// -> offset callback
+MAKE_SCHEME_CALLBACK (Rest, y_offset_callback, 1);
+SCM
+Rest::y_offset_callback (SCM smob)
{
- if (balltype_i_ > 1)
- position_i_ -= 4;
- else if (balltype_i_ == 0)
- position_i_ += 2;
+ Grob *me = unsmob_grob (smob);
+ int duration_log = scm_to_int (me->get_property ("duration-log"));
+ int line_count = Staff_symbol_referencer::line_count (me);
+ Real ss = Staff_symbol_referencer::staff_space (me);
- Rhythmic_head::do_add_processing ();
- if (dots_l_ && balltype_i_ > 1)
+ Real amount = robust_scm2double (me->get_property ("staff-position"), 0)
+ * 0.5 * ss;
+ bool position_override = amount;
+
+ if (line_count % 2)
{
- dots_l_->position_i_ = position_i_ + 4;
+ if (duration_log == 0 && line_count > 1)
+ amount += ss;
}
-}
+ else
+ amount += ss / 2;
-Rest::Rest ()
-{
- position_i_ =0;
+ Grob *dot = unsmob_grob (me->get_object ("dot"));
+ if (dot && duration_log > 4) // UGH.
+ {
+ dot->set_property ("staff-position",
+ scm_from_int ((duration_log == 7) ? 4 : 3));
+ }
+ if (dot && duration_log >= -1 && duration_log <= 1) // UGH again.
+ {
+ dot->set_property ("staff-position",
+ scm_from_int ((duration_log == 0) ? -1 : 1));
+ }
+
+ if (!position_override)
+ amount += 2 * ss * get_grob_direction (me);;
+
+ return scm_from_double (amount);
}
-Molecule *
-Rest::do_brew_molecule_p () const
+/*
+ make this function easily usable in C++
+*/
+string
+Rest::glyph_name (Grob *me, int balltype, string style, bool try_ledgers)
{
- bool streepjes_b = abs(position_i_) > lines_i () / 2 &&
- (balltype_i_ == 0 || balltype_i_ == 1);
-
- String style;
- SCM style_sym =get_elt_property (style_scm_sym);
- if (style_sym != SCM_BOOL_F)
+ bool is_ledgered = false;
+ if (try_ledgers && (balltype == 0 || balltype == 1))
{
- style = ly_scm2string (SCM_CDR(style_sym));
+ Real rad = Staff_symbol_referencer::staff_radius (me) * 2.0;
+ Real pos = Staff_symbol_referencer::get_position (me);
+
+ /*
+ Figure out when the rest is far enough outside the staff. This
+ could bemore generic, but hey, we understand this even after
+ dinner.
+ */
+ is_ledgered |= (balltype == 0) && (pos >= +rad + 2 || pos < -rad);
+ is_ledgered |= (balltype == 1) && (pos <= -rad - 2 || pos > +rad);
}
-
- Molecule s(lookup_l ()->rest (balltype_i_, streepjes_b, style));
- Molecule * m = new Molecule ( Molecule (s));
- m->translate_axis (position_i_ * staff_line_leading_f ()/2.0, Y_AXIS);
- return m;
+
+ string actual_style (style.c_str ());
+
+ if ((style == "mensural") || (style == "neomensural"))
+ {
+
+ /*
+ FIXME: Currently, ancient font does not provide ledgered rests;
+ hence the "o" suffix in the glyph name is bogus. But do we need
+ ledgered rests at all now that we can draw ledger lines with
+ variable width, length and blotdiameter? -- jr
+ */
+ is_ledgered = 0;
+
+ /*
+ There are no 32th/64th/128th mensural/neomensural rests. In
+ these cases, revert back to default style.
+ */
+ if (balltype > 4)
+ actual_style = "";
+ }
+
+ if ((style == "classical") && (balltype != 2))
+ {
+ /*
+ classical style: revert back to default style for any rest other
+ than quarter rest
+ */
+ actual_style = "";
+ }
+
+ if (style == "default")
+ {
+ /*
+ Some parts of lily still prefer style "default" over "".
+ Correct this here. -- jr
+ */
+ actual_style = "";
+ }
+
+ return ("rests." + to_string (balltype) + (is_ledgered ? "o" : "")
+ + actual_style);
}
+MAKE_SCHEME_CALLBACK (Rest, print, 1);
+SCM
+Rest::brew_internal_stencil (Grob *me, bool ledgered)
+{
+ SCM balltype_scm = me->get_property ("duration-log");
+ if (!scm_is_number (balltype_scm))
+ return Stencil ().smobbed_copy ();
+
+ int balltype = scm_to_int (balltype_scm);
+
+ string style;
+ SCM style_scm = me->get_property ("style");
+ if (scm_is_symbol (style_scm))
+ style = ly_scm2string (scm_symbol_to_string (style_scm));
+
+ Font_metric *fm = Font_interface::get_default_font (me);
+ string font_char = glyph_name (me, balltype, style, ledgered);
+ Stencil out = fm->find_by_name (font_char);
+ if (out.is_empty ())
+ me->warning (_f ("rest `%s' not found", font_char.c_str ()));
+
+ return out.smobbed_copy ();
+}
+
+SCM
+Rest::print (SCM smob)
+{
+ return brew_internal_stencil (unsmob_grob (smob), true);
+}
+
+MAKE_SCHEME_CALLBACK (Rest, width, 1);
+/*
+ We need the callback. The real stencil has ledgers depending on
+ Y-position. The Y-position is known only after line breaking. */
+SCM
+Rest::width (SCM smob)
+{
+ return generic_extent_callback (unsmob_grob (smob), X_AXIS);
+}
+
+MAKE_SCHEME_CALLBACK (Rest, height, 1);
+SCM
+Rest::height (SCM smob)
+{
+ return generic_extent_callback (unsmob_grob (smob), Y_AXIS);
+}
+
+/*
+ We need the callback. The real stencil has ledgers depending on
+ Y-position. The Y-position is known only after line breaking. */
+SCM
+Rest::generic_extent_callback (Grob *me, Axis a)
+{
+ /*
+ Don't want ledgers: ledgers depend on Y position, which depends on
+ rest collision, which depends on stem size which depends on beam
+ slop of opposite note column.
+
+ consequence: we get too small extents and potential collisions
+ with ledgered rests.
+ */
+ SCM m = brew_internal_stencil (me, a != X_AXIS);
+ return ly_interval2scm (unsmob_stencil (m)->extent (a));
+}
+
+ADD_INTERFACE (Rest, "rest-interface",
+ "A rest symbol.",
+
+ /* properties */
+
+ "style "
+ "direction "
+ "minimum-distance");
projects / lilypond.git / blobdiff