Example of populating auto-LSR with snippets.

[lilypond.git] / lily / system.cc

diff --git a/lily/system.cc b/lily/system.cc
index 3337a77146d4e193682f38a2ba60f6807d39f131..06ac09e39a224b6b31467474d88e14e54bf1d341 100644 (file)
--- a/lily/system.cc
+++ b/lily/system.cc
@@ -3,7 +3,7 @@
 
   source file of the GNU LilyPond music typesetter
 
-  (c) 1996--2006 Han-Wen Nienhuys <hanwen@xs4all.nl>
+  (c) 1996--2007 Han-Wen Nienhuys <hanwen@xs4all.nl>
 */
 
 #include "system.hh"
@@ -21,11 +21,13 @@
 #include "pointer-group-interface.hh"
 #include "spacing-interface.hh"
 #include "staff-symbol-referencer.hh"
-#include "tweak-registration.hh"
 #include "warn.hh"
+#include "lookup.hh"
 
-System::System (System const &src, int count)
-  : Spanner (src, count)
+extern bool debug_skylines;
+
+System::System (System const &src)
+  : Spanner (src)
 {
   all_elements_ = 0;
   pscore_ = 0;
@@ -33,8 +35,8 @@ System::System (System const &src, int count)
   init_elements ();
 }
 
-System::System (SCM s, Object_key const *key)
-  : Spanner (s, key)
+System::System (SCM s)
+  : Spanner (s)
 {
   all_elements_ = 0;
   rank_ = 0;
@@ -51,9 +53,9 @@ System::init_elements ()
 }
 
 Grob *
-System::clone (int index) const
+System::clone () const
 {
-  return new System (*this, index);
+  return new System (*this);
 }
 
 int
@@ -207,7 +209,7 @@ System::break_into_pieces (vector<Column_x_positions> const &breaking)
 {
   for (vsize i = 0; i < breaking.size (); i++)
     {
-      System *system = dynamic_cast<System *> (clone (broken_intos_.size ()));
+      System *system = dynamic_cast<System *> (clone ());
       system->rank_ = broken_intos_.size ();
 
       vector<Grob*> c (breaking[i].cols_);
@@ -243,30 +245,12 @@ System::add_column (Paper_column *p)
       ga = unsmob_grob_array (scm_ga);
     }
 
-  p->rank_
-    = ga->size ()
-    ? Paper_column::get_rank (ga->array ().back ()) + 1
-    : 0;
+  p->rank_ = ga->size ();
 
   ga->add (p);
   Axis_group_interface::add_element (this, p);
 }
 
-void
-apply_tweaks (Grob *g, bool broken)
-{
-  if (bool (g->original ()) == broken)
-    {
-      SCM tweaks = global_registry_->get_tweaks (g);
-      for (SCM s = tweaks; scm_is_pair (s); s = scm_cdr (s))
-       {
-         SCM proc = scm_caar (s);
-         SCM rest = scm_cdar (s);
-         scm_apply_1 (proc, g->self_scm (), rest);
-       }
-    }
-}
-
 void
 System::pre_processing ()
 {
@@ -286,9 +270,6 @@ System::pre_processing ()
 
   fixup_refpoints (all_elements_->array ());
 
-  for (vsize i = 0; i < all_elements_->size (); i++)
-    apply_tweaks (all_elements_->grob (i), false);
-
   for (vsize i = 0; i < all_elements_->size (); i++)
     {
       Grob *g = all_elements_->grob (i);
@@ -309,7 +290,6 @@ System::post_processing ()
     {
       Grob *g = all_elements_->grob (i);
 
-      apply_tweaks (g, true);
       (void) g->get_property ("after-line-breaking");
     }
 
@@ -398,6 +378,11 @@ System::get_paper_system ()
   Stencil sys_stencil (Box (x, y),
                       scm_cons (ly_symbol2scm ("combine-stencil"),
                                 exprs));
+  if (debug_skylines)
+    {
+      sys_stencil.add_stencil (Lookup::points_to_line_stencil (0.1, skylines_[UP].to_points ()).in_color (255, 0, 0));
+      sys_stencil.add_stencil (Lookup::points_to_line_stencil (0.1, skylines_[DOWN].to_points ()).in_color (0, 255, 0));
+    }
 
   Grob *left_bound = this->get_bound (LEFT);
   SCM prop_init = left_bound->get_property ("line-break-system-details");
@@ -438,17 +423,16 @@ System::broken_col_range (Item const *left, Item const *right) const
   left = left->get_column ();
   right = right->get_column ();
 
+  
   extract_grob_set (this, "columns", cols);
-  vsize i = 0;
-  while (i < cols.size ()
-        && cols[i] != left)
-    i++;
 
+  vsize i = Paper_column::get_rank (left);
+  int end_rank = Paper_column::get_rank (right);
   if (i < cols.size ())
     i++;
 
   while (i < cols.size ()
-        && cols[i] != right)
+        && Paper_column::get_rank (cols[i]) < end_rank)
     {
       Paper_column *c = dynamic_cast<Paper_column *> (cols[i]);
       if (Paper_column::is_breakable (c) && !c->system_)
@@ -459,10 +443,11 @@ System::broken_col_range (Item const *left, Item const *right) const
   return ret;
 }
 
+
 /** Return all columns, but filter out any unused columns , since they might
     disrupt the spacing problem. */
 vector<Grob*>
-System::columns () const
+System::used_columns () const
 {
   extract_grob_set (this, "columns", ro_columns);
 
@@ -484,6 +469,16 @@ System::columns () const
   return columns;
 }
 
+Paper_column *
+System::column (vsize which) const
+{
+  extract_grob_set (this, "columns", columns);
+  if (which >= columns.size ())
+    return 0;
+  
+  return dynamic_cast<Paper_column*> (columns[which]);
+}
+
 Paper_score*
 System::paper_score () const
 {
@@ -523,12 +518,14 @@ System::build_skylines ()
        boxes.push_back (Box (xiv, yiv));
     }
 
-  skylines_[UP] = Skyline (boxes, X_AXIS, UP);
-  skylines_[DOWN] = Skyline (boxes, X_AXIS, DOWN);
+  SCM horizon_padding_scm = get_property ("skyline-horizontal-padding");
+  Real horizon_padding = robust_scm2double (horizon_padding_scm, 0);
+  skylines_[UP] = Skyline (boxes, horizon_padding, X_AXIS, UP);
+  skylines_[DOWN] = Skyline (boxes, horizon_padding, X_AXIS, DOWN);
 }
 
 
-ADD_INTERFACE (System, "system-interface",
+ADD_INTERFACE (System,
               "This is the toplevel object: each object in a score "
               "ultimately has a System object as its X and Y parent. ",
 
@@ -538,4 +535,5 @@ ADD_INTERFACE (System, "system-interface",
               "pure-Y-extent "
               "spaceable-staves "
               "skyline-distance "
+              "skyline-horizontal-padding "
               )