Issue 2491: Macro for(UP_and_DOWN) and 3 similar.

[lilypond.git] / lily / axis-group-interface.cc

diff --git a/lily/axis-group-interface.cc b/lily/axis-group-interface.cc
index 143534edabe2874b4c73d2e314ed3fa5756dbea9..1b937985eeee2aab63444c47401f2a49e9a59af7 100644 (file)
--- a/lily/axis-group-interface.cc
+++ b/lily/axis-group-interface.cc
@@ -1,7 +1,7 @@
 /*
   This file is part of LilyPond, the GNU music typesetter.
 
-  Copyright (C) 2000--2011 Han-Wen Nienhuys <hanwen@xs4all.nl>
+  Copyright (C) 2000--2012 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
@@ -31,9 +31,11 @@
 #include "separation-item.hh"
 #include "skyline-pair.hh"
 #include "staff-grouper-interface.hh"
+#include "stem.hh"
 #include "stencil.hh"
 #include "system.hh"
 #include "warn.hh"
+#include "unpure-pure-container.hh"
 
 static bool
 pure_staff_priority_less (Grob *const &g1, Grob *const &g2);
@@ -74,6 +76,13 @@ Axis_group_interface::has_axis (Grob *me, Axis a)
 Interval
 Axis_group_interface::relative_group_extent (vector<Grob *> const &elts,
                                              Grob *common, Axis a)
+{
+  return relative_maybe_bound_group_extent (elts, common, a, false);
+}
+
+Interval
+Axis_group_interface::relative_maybe_bound_group_extent (vector<Grob *> const &elts,
+                                                         Grob *common, Axis a, bool bound)
 {
   Interval r;
   for (vsize i = 0; i < elts.size (); i++)
@@ -81,7 +90,9 @@ Axis_group_interface::relative_group_extent (vector<Grob *> const &elts,
       Grob *se = elts[i];
       if (!to_boolean (se->get_property ("cross-staff")))
         {
-          Interval dims = se->extent (common, a);
+          Interval dims = (bound && has_interface (se)
+                           ? generic_bound_extent (se, common, a)
+                           : se->extent (common, a));
           if (!dims.is_empty ())
             r.unite (dims);
         }
@@ -89,6 +100,32 @@ Axis_group_interface::relative_group_extent (vector<Grob *> const &elts,
   return r;
 }
 
+Interval
+Axis_group_interface::generic_bound_extent (Grob *me, Grob *common, Axis a)
+{
+  /* trigger the callback to do skyline-spacing on the children */
+  if (a == Y_AXIS)
+    (void) me->get_property ("vertical-skylines");
+
+  extract_grob_set (me, "elements", elts);
+  vector<Grob *> new_elts;
+
+  SCM interfaces = me->get_property ("bound-alignment-interfaces");
+
+  for (vsize i = 0; i < elts.size (); i++)
+    for (SCM l = interfaces; scm_is_pair (l); l = scm_cdr (l))
+      if (elts[i]->internal_has_interface (scm_car (l)))
+        new_elts.push_back (elts[i]);
+
+  if (!new_elts.size ())
+    return robust_relative_extent (me, common, a);
+
+  if (!common)
+    common = common_refpoint_of_array (new_elts, me, a);
+
+  return relative_maybe_bound_group_extent (new_elts, common, a, true);
+}
+
 Interval
 Axis_group_interface::sum_partial_pure_heights (Grob *me, int start, int end)
 {
@@ -290,7 +327,8 @@ Axis_group_interface::relative_pure_height (Grob *me, int start, int end)
       Interval_t<int> rank_span = g->spanned_rank_interval ();
       if (rank_span[LEFT] <= end && rank_span[RIGHT] >= start
           && g->pure_is_visible (start, end)
-          && !to_boolean (g->get_property ("cross-staff")))
+          && !(to_boolean (g->get_property ("cross-staff"))
+               && Stem::has_interface (g)))
         {
           Interval dims = g->pure_height (common, start, end);
           if (!dims.is_empty ())
@@ -420,8 +458,13 @@ SCM
 Axis_group_interface::calc_pure_relevant_grobs (SCM smob)
 {
   Grob *me = unsmob_grob (smob);
+  return internal_calc_pure_relevant_grobs (me, "elements");
+}
 
-  extract_grob_set (me, "elements", elts);
+SCM
+Axis_group_interface::internal_calc_pure_relevant_grobs (Grob *me, string grob_set_name)
+{
+  extract_grob_set (me, grob_set_name.c_str (), elts);
 
   vector<Grob *> relevant_grobs;
   SCM pure_relevant_p = ly_lily_module_constant ("pure-relevant?");
@@ -433,14 +476,12 @@ Axis_group_interface::calc_pure_relevant_grobs (SCM smob)
 
       if (Item *it = dynamic_cast<Item *> (elts[i]))
         {
-          Direction d = LEFT;
-          do
+          for (LEFT_and_RIGHT (d))
             {
               Item *piece = it->find_prebroken_piece (d);
               if (piece && to_boolean (scm_apply_1 (pure_relevant_p, piece->self_scm (), SCM_EOL)))
                 relevant_grobs.push_back (piece);
             }
-          while (flip (&d) != LEFT);
         }
     }
 
@@ -719,7 +760,7 @@ Axis_group_interface::skyline_spacing (Grob *me, vector<Grob *> elements)
       vector<Grob *> current_elts;
       current_elts.push_back (elements[i]);
       while (i + 1 < elements.size ()
-             && scm_eq_p (elements[i + 1]->get_property ("outside-staff-priority"), priority))
+             && scm_is_eq (elements[i + 1]->get_property ("outside-staff-priority"), priority))
         {
           if (!to_boolean (elements[i + 1]->get_property ("cross-staff")))
             current_elts.push_back (elements[i + 1]);
@@ -808,6 +849,7 @@ ADD_INTERFACE (Axis_group_interface,
                /* properties */
                "adjacent-pure-heights "
                "axes "
+               "bound-alignment-interfaces "
                "default-staff-staff-spacing "
                "elements "
                "max-stretch "