X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=lily%2Fmulti-measure-rest.cc;h=9520ca346071a97f3afb755fa56ceb4c556b4474;hb=75eebcb49e52d296b1da3e1074e0825d2c780db4;hp=e8d4565e2eccf3094f628429589bd18c2304b70e;hpb=c5402461ab1d1cdbaa684b0e55d4851f0e28e37a;p=lilypond.git

diff --git a/lily/multi-measure-rest.cc b/lily/multi-measure-rest.cc
index e8d4565e2e..9520ca3460 100644
--- a/lily/multi-measure-rest.cc
+++ b/lily/multi-measure-rest.cc
@@ -1,103 +1,239 @@
-/*   
-  multi-measure-rest.cc --  implement Multi_measure_rest
-  
+/*
+  multi-measure-rest.cc -- implement Multi_measure_rest
+
   source file of the GNU LilyPond music typesetter
-  
-  (c) 1998--2000 Jan Nieuwenhuizen <janneke@gnu.org>
-  
- */
+
+  (c) 1998--2006 Jan Nieuwenhuizen <janneke@gnu.org>
+*/
 
 #include "multi-measure-rest.hh"
-#include "debug.hh"
-#include "paper-def.hh"
+
+#include "warn.hh"
+#include "output-def.hh"
 #include "paper-column.hh" // urg
-#include "font-metric.hh"
+#include "font-interface.hh"
 #include "rest.hh"
-#include "molecule.hh"
 #include "misc.hh"
-#include "group-interface.hh"
 #include "spanner.hh"
 #include "staff-symbol-referencer.hh"
-#include "text-item.hh"
+#include "text-interface.hh"
+#include "percent-repeat-item.hh"
+#include "lookup.hh"
+#include "separation-item.hh"
 
-void
-Multi_measure_rest::set_interface (Score_element*me)
+MAKE_SCHEME_CALLBACK (Multi_measure_rest, percent, 1);
+SCM
+Multi_measure_rest::percent (SCM smob)
 {
-  me->set_interface (ly_symbol2scm ("multi-measure-rest-interface"));
-}
+  Grob *me = unsmob_grob (smob);
+  Spanner *sp = dynamic_cast<Spanner *> (me);
 
-bool
-Multi_measure_rest::has_interface (Score_element*me)
-{
-  return me->has_interface (ly_symbol2scm ("multi-measure-rest-interface"));
-}
+  Stencil r = Percent_repeat_item_interface::x_percent (me, 1, 0.75, 1.6);
 
-  /*
-   [TODO]                                      17
- * variable-sized multi-measure rest symbol: |====| ??
-*/
-MAKE_SCHEME_CALLBACK(Multi_measure_rest,brew_molecule,1);
-SCM
-Multi_measure_rest::brew_molecule (SCM smob) 
-{
-  Score_element *me = unsmob_element (smob);
-  Spanner * sp = dynamic_cast<Spanner*> (me);
-  Real staff_space = Staff_symbol_referencer::staff_space (me);
+  // ugh copy & paste.
 
   Interval sp_iv;
   Direction d = LEFT;
   do
     {
-      Item * col = sp->get_bound (d)->column_l ();
+      Item *col = sp->get_bound (d)->get_column ();
 
       Interval coldim = col->extent (0, X_AXIS);
 
-      sp_iv[d] = coldim[-d]  ;
+      sp_iv[d] = coldim[-d];
     }
   while ((flip (&d)) != LEFT);
-  Molecule mol;
   Real x_off = 0.0;
 
-  Real rx  = sp->get_bound (LEFT)->relative_coordinate (0, X_AXIS);
+  Real rx = sp->get_bound (LEFT)->relative_coordinate (0, X_AXIS);
   /*
     we gotta stay clear of sp_iv, so move a bit to the right if
     needed.
-   */
-  x_off += (sp_iv[LEFT] -  rx) >? 0;
+  */
+  x_off += max (sp_iv[LEFT] - rx, 0.0);
 
   /*
     center between stuff.
-   */
-  x_off += sp_iv.length ()/ 2;
+  */
+  x_off += sp_iv.length () / 2;
+
+  r.translate_axis (x_off, X_AXIS);
+
+  return r.smobbed_copy ();
+}
+
+MAKE_SCHEME_CALLBACK (Multi_measure_rest, print, 1);
+SCM
+Multi_measure_rest::print (SCM smob)
+{
+  Grob *me = unsmob_grob (smob);
+  Spanner *sp = dynamic_cast<Spanner *> (me);
+
+  Interval sp_iv;
+  Direction d = LEFT;
+
+  Grob *common = sp->get_bound (LEFT)->common_refpoint (sp->get_bound (RIGHT), X_AXIS);
+  do
+    {
+      Item *b = sp->get_bound (d);
+
+      Interval coldim = (Separation_item::has_interface (b))
+	? Separation_item::relative_width (b, common)
+	: b->extent (common, X_AXIS);
+
+      sp_iv[d] = coldim.is_empty () ? b->relative_coordinate (common, X_AXIS) : coldim[-d];
+    }
+  while ((flip (&d)) != LEFT);
+
+  Real space = sp_iv.length ();
+
+  Real rx = sp->get_bound (LEFT)->relative_coordinate (0, X_AXIS);
+  /*
+    we gotta stay clear of sp_iv, so move a bit to the right if
+    needed.
+  */
+  Real x_off = max (sp_iv[LEFT] - rx, 0.0);
+
+  Stencil mol;
+  mol.add_stencil (symbol_stencil (me, space));
+
+  int measures = 0;
+  SCM m (me->get_property ("measure-count"));
+  if (scm_is_number (m))
+    measures = scm_to_int (m);
 
-  
-  Molecule s;
+  mol.translate_axis (x_off, X_AXIS);
+  return mol.smobbed_copy ();
+}
+
+Stencil
+Multi_measure_rest::symbol_stencil (Grob *me, Real space)
+{
+  int measures = 0;
+  SCM m (me->get_property ("measure-count"));
+  if (scm_is_number (m))
+    measures = scm_to_int (m);
+  if (measures <= 0)
+    return Stencil ();
 
-  int measures = 1;
-  SCM m (me->get_elt_property ("measure-count"));
-  if (gh_number_p (m))
+  SCM limit = me->get_property ("expand-limit");
+  if (measures > scm_to_int (limit))
     {
-      measures = gh_scm2int (m);
+      Real padding = 0.15;
+      Stencil s = big_rest (me, (1.0 - 2 * padding) * space);
+      s.translate_axis (padding * space, X_AXIS);
+      return s;
     }
-  
 
-  SCM limit = me->get_elt_property ("expand-limit");
-  if (measures <= gh_scm2int (limit))
+  SCM alist_chain = Font_interface::music_font_alist_chain (me);
+
+  Real staff_space = Staff_symbol_referencer::staff_space (me);
+  Font_metric *musfont
+    = select_font (me->layout (), alist_chain);
+
+  SCM sml = me->get_property ("use-breve-rest");
+  if (measures == 1)
     {
-      /*
-	Build a rest from smaller parts. Distances inbetween are
-	really variable, see Wanske pp. 125 */
+      if (to_boolean (sml))
+	{
+	  Stencil s = musfont->find_by_name (Rest::glyph_name (me, -1, "", false));
 
-      int l = measures;
-      while (l)
+	  s.translate_axis ((space - s.extent (X_AXIS).length ()) / 2, X_AXIS);
+
+	  return s;
+	}
+      else
+	{
+	  Stencil s = musfont->find_by_name (Rest::glyph_name (me, 0, "", true));
+
+	  /*
+	    ugh.
+	  */
+	  if (Staff_symbol_referencer::get_position (me) == 0.0)
+	    s.translate_axis (staff_space, Y_AXIS);
+
+	  s.translate_axis ((space - s.extent (X_AXIS).length ()) / 2, X_AXIS);
+
+	  return s;
+	}
+    }
+  else
+    return church_rest (me, musfont, measures, space);
+}
+
+/*
+  WIDTH can also be 0 to determine the minimum size of the object.
+*/
+Stencil
+Multi_measure_rest::big_rest (Grob *me, Real width)
+{
+  Real thick_thick = robust_scm2double (me->get_property ("thick-thickness"), 1.0);
+  Real hair_thick = robust_scm2double (me->get_property ("hair-thickness"), .1);
+
+  Real ss = Staff_symbol_referencer::staff_space (me);
+  Real slt = me->layout ()->get_dimension (ly_symbol2scm ("linethickness"));
+  Real y = slt * thick_thick / 2 * ss;
+  Real ythick = hair_thick * slt * ss;
+  Box b (Interval (0.0, max (0.0, (width - 2 * ythick))), Interval (-y, y));
+
+  Real blot = width ? (.8 * min (y, ythick)) : 0.0;
+
+  Stencil m = Lookup::round_filled_box (b, blot);
+  Stencil yb = Lookup::round_filled_box (Box (Interval (-0.5, 0.5) * ythick, Interval (-ss, ss)), blot);
+
+  m.add_at_edge (X_AXIS, RIGHT, yb, 0, 0);
+  m.add_at_edge (X_AXIS, LEFT, yb, 0, 0);
+
+  m.align_to (X_AXIS, LEFT);
+
+  return m;
+}
+
+/*
+  Kirchenpause (?)
+*/
+Stencil
+Multi_measure_rest::church_rest (Grob *me, Font_metric *musfont, int measures,
+				 Real space)
+{
+  SCM mols = SCM_EOL;
+
+  /* See Wanske pp. 125  */
+  int l = measures;
+  int count = 0;
+  Real symbols_width = 0.0;
+
+  SCM sml = me->get_property ("use-breve-rest");
+
+  while (l)
+    {
+      if (sml == SCM_BOOL_T)
+	{
+	  int k;
+	  if (l >= 2)
+	    {
+	      l -= 2;
+	      k = -2;
+	    }
+	  else
+	    {
+	      l -= 1;
+	      k = -1;
+	    }
+
+	  Stencil r (musfont->find_by_name ("rests." + to_string (k)));
+	  symbols_width += r.extent (X_AXIS).length ();
+	  mols = scm_cons (r.smobbed_copy (), mols);
+	}
+      else
 	{
 	  int k;
 	  if (l >= 4)
 	    {
-	      l-=4;
+	      l -= 4;
 	      k = -2;
 	    }
-	  else if (l>= 2)
+	  else if (l >= 2)
 	    {
 	      l -= 2;
 	      k = -1;
@@ -105,100 +241,156 @@ Multi_measure_rest::brew_molecule (SCM smob)
 	  else
 	    {
 	      k = 0;
-	      l --;
+	      l--;
 	    }
 
-	  Real pad = s.empty_b ()
-	    ? 0.0 : gh_scm2double (me->get_elt_property ("padding")) * staff_space;
-
-	  Molecule r (me->get_default_font ()->find_by_name ("rests-" + to_str (k)));
+	  Stencil r (musfont->find_by_name ("rests." + to_string (k)));
 	  if (k == 0)
-	    r.translate_axis (staff_space, Y_AXIS);
-	  
-	  s.add_at_edge (X_AXIS, RIGHT, r, pad);
+	    {
+	      Real staff_space = Staff_symbol_referencer::staff_space (me);
+	      r.translate_axis (staff_space, Y_AXIS);
+	    }
+	  symbols_width += r.extent (X_AXIS).length ();
+	  mols = scm_cons (r.smobbed_copy (), mols);
 	}
+      count++;
+    }
 
+  /* Make outer padding this much bigger.  */
+  Real outer_padding_factor = 1.5;
+  Real inner_padding = (space - symbols_width)
+    / (2 * outer_padding_factor + (count - 1));
+  if (inner_padding < 0)
+    inner_padding = 1.0;
 
-      s.align_to (X_AXIS, CENTER);
-    }
-  else 
-    {
-      String idx =  ("rests-") + to_str (-4);
-      s = me->get_default_font ()->find_by_name (idx);
-    }
-  
-  mol.add_molecule (s);
+  Stencil mol;
+  for (SCM s = mols; scm_is_pair (s); s = scm_cdr (s))
+    mol.add_at_edge (X_AXIS, LEFT, *unsmob_stencil (scm_car (s)),
+		     inner_padding, 0);
+  mol.align_to (X_AXIS, LEFT);
+  mol.translate_axis (outer_padding_factor * inner_padding, X_AXIS);
 
-  if (measures > 1)
-    {
-      SCM properties = gh_list (me->mutable_property_alist_,
-				me->immutable_property_alist_,
-				SCM_UNDEFINED);
-      Molecule s =
-	Text_item::text2molecule (me,
-				  ly_str02scm (to_str (measures).ch_C ()),
-				  properties);
-      s.align_to (X_AXIS, CENTER);
-      s.translate_axis (3.0 * staff_space, Y_AXIS);
-      mol.add_molecule (s);
-    }
-  mol.translate_axis (x_off, X_AXIS);
-  return mol.create_scheme();
+  return mol;
 }
 
-/*
-  UGH. JUNKME elt prop "columns" isn't really needed. 
- */
 void
-Multi_measure_rest::add_column (Score_element*me,Item* c)
+Multi_measure_rest::add_column (Grob *me, Item *c)
 {
-  Pointer_group_interface::add_element (me, "columns",c);
-
-  add_bound_item (dynamic_cast<Spanner*> (me),c);
+  add_bound_item (dynamic_cast<Spanner *> (me), c);
 }
 
+MAKE_SCHEME_CALLBACK (Multi_measure_rest, set_spacing_rods, 1);
+SCM
+Multi_measure_rest::set_spacing_rods (SCM smob)
+{
+  Grob *me = unsmob_grob (smob);
 
-MAKE_SCHEME_CALLBACK (Multi_measure_rest, set_spacing_rods,1);
+  Spanner *sp = dynamic_cast<Spanner *> (me);
+  if (! (sp->get_bound (LEFT) && sp->get_bound (RIGHT)))
+    {
+      programming_error ("Multi_measure_rest::get_rods (): I am not spanned!");
+      return SCM_UNSPECIFIED;
+    }
 
+  Item *li = sp->get_bound (LEFT)->get_column ();
+  Item *ri = sp->get_bound (RIGHT)->get_column ();
+  Item *lb = li->find_prebroken_piece (RIGHT);
+  Item *rb = ri->find_prebroken_piece (LEFT);
+
+  Item *combinations[4][2] = {{li, ri},
+			      {lb, ri},
+			      {li, rb},
+			      {lb, rb}};
+
+  Real sym_width = symbol_stencil (me, 0.0).extent (X_AXIS).length ();
+
+  for (int i = 0; i < 4; i++)
+    {
+      Item *li = combinations[i][0];
+      Item *ri = combinations[i][1];
+
+      if (!li || !ri)
+	continue;
+
+      Rod rod;
+      rod.item_drul_[LEFT] = li;
+      rod.item_drul_[RIGHT] = ri;
+
+      rod.distance_ = li->extent (li, X_AXIS)[BIGGER]
+	- ri->extent (ri, X_AXIS)[SMALLER]
+	/* 2.0 = magic! */
+	+ sym_width + 2.0;
+
+      Real minlen = robust_scm2double (me->get_property ("minimum-length"), 0);
+      rod.distance_ = max (rod.distance_, minlen);
+      rod.add_to_cols ();
+    }
+  return SCM_UNSPECIFIED;
+}
+
+/*
+  Ugh. Cut & paste.
+ */
+MAKE_SCHEME_CALLBACK (Multi_measure_rest, set_text_rods, 1);
 SCM
-Multi_measure_rest::set_spacing_rods (SCM smob)
+Multi_measure_rest::set_text_rods (SCM smob)
 {
-  Score_element*me = unsmob_element (smob);
+  Grob *me = unsmob_grob (smob);
 
-  Spanner*sp = dynamic_cast<Spanner*> (me);
-  if (!(sp->get_bound (LEFT) && sp->get_bound (RIGHT)))
+  Spanner *sp = dynamic_cast<Spanner *> (me);
+  if (! (sp->get_bound (LEFT) && sp->get_bound (RIGHT)))
     {
       programming_error ("Multi_measure_rest::get_rods (): I am not spanned!");
       return SCM_UNSPECIFIED;
     }
 
-  Item * l = sp->get_bound (LEFT)->column_l ();
-  Item * r = sp->get_bound (RIGHT)->column_l ();
-  Item * lb = l->find_prebroken_piece (RIGHT);
-  Item * rb = r->find_prebroken_piece (LEFT);      
-  
-  Item* combinations[4][2]={{l,r}, {lb,r}, {l,rb},{lb,rb}};
-  Real staff_space = Staff_symbol_referencer::staff_space (me);
-  for (int i=0; i < 4; i++)
+  Item *li = sp->get_bound (LEFT)->get_column ();
+  Item *ri = sp->get_bound (RIGHT)->get_column ();
+  Item *lb = li->find_prebroken_piece (RIGHT);
+  Item *rb = ri->find_prebroken_piece (LEFT);
+
+  Item *combinations[4][2] = {{li, ri},
+			      {lb, ri},
+			      {li, rb},
+			      {lb, rb}};
+
+  Stencil *stil = me->get_stencil ();
+
+  /* FIXME uncached */
+  Real len = (stil && !stil->extent (X_AXIS).is_empty ())
+    ? stil->extent (X_AXIS).length ()
+    : 0.0;
+
+  for (int i = 0; i < 4; i++)
     {
-      Item * l =  combinations[i][0];
-      Item *r = combinations[i][1];
+      Item *li = combinations[i][0];
+      Item *ri = combinations[i][1];
 
-      if (!l || !r)
+      if (!li || !ri)
 	continue;
 
       Rod rod;
-      rod.item_l_drul_[LEFT] = l;
-      rod.item_l_drul_[RIGHT] = r;
-
-	/*
-	  should do something more advanced.
-	 */
-      rod.distance_f_ = l->extent (l, X_AXIS)[BIGGER] - r->extent (r, X_AXIS)[SMALLER]
-	+ gh_scm2double (me->get_elt_property ("minimum-width")) * staff_space;
-  
+      rod.item_drul_[LEFT] = li;
+      rod.item_drul_[RIGHT] = ri;
+
+      rod.distance_ = len; 
+
+      Real minlen = robust_scm2double (me->get_property ("minimum-length"), 0);
+      rod.distance_ = max (rod.distance_, minlen);
       rod.add_to_cols ();
     }
   return SCM_UNSPECIFIED;
 }
 
+
+ADD_INTERFACE (Multi_measure_rest, "multi-measure-rest-interface",
+	       "A rest that spans a whole number of measures.",
+
+	       /* properties */
+	       "expand-limit "
+	       "measure-count "
+	       "hair-thickness "
+	       "thick-thickness "
+	       "use-breve-rest "
+	       "minimum-length");
+