Set side-axis for InstrumentSwitch grobs

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

diff --git a/lily/axis-group-interface.cc b/lily/axis-group-interface.cc
index 9f7c25c6c44e27c34d7b1b6bf60425287183967c..0a82fe67131c859afd8aa95ad3df752877fb62d6 100644 (file)
--- a/lily/axis-group-interface.cc
+++ b/lily/axis-group-interface.cc
@@ -14,9 +14,11 @@
 #include "grob-array.hh"
 #include "hara-kiri-group-spanner.hh"
 #include "international.hh"
 #include "grob-array.hh"
 #include "hara-kiri-group-spanner.hh"
 #include "international.hh"

+#include "lookup.hh"

 #include "paper-column.hh"
 #include "paper-score.hh"
 #include "separation-item.hh"
 #include "paper-column.hh"
 #include "paper-score.hh"
 #include "separation-item.hh"

+#include "stencil.hh"

 #include "system.hh"
 #include "warn.hh"
 
 #include "system.hh"
 #include "warn.hh"
 


@@ -80,63 +82,94 @@ Axis_group_interface::relative_group_extent (vector<Grob*> const &elts,
 */
 
 Interval
 */
 
 Interval

-Axis_group_interface::cached_pure_height (Grob *me,
-                                         vector<Grob*> const &elts,
-                                         Grob *common,
-                                         int start, int end)
+Axis_group_interface::cached_pure_height (Grob *me, int start, int end)

 {
   Paper_score *ps = get_root_system (me)->paper_score ();
   vector<vsize> breaks = ps->get_break_indices ();
   vector<Grob*> cols = ps->get_columns ();
 {
   Paper_score *ps = get_root_system (me)->paper_score ();
   vector<vsize> breaks = ps->get_break_indices ();
   vector<Grob*> cols = ps->get_columns ();

-  vsize start_index = VPOS;
-  vsize end_index = VPOS;

 
 

-  for (vsize i = 0; i < breaks.size (); i++)
+  SCM extents = me->get_property ("adjacent-pure-heights");
+
+  if (!scm_is_vector (extents))
+    return Interval (0, 0);
+
+  Interval ext;
+  for (vsize i = 0; i + 1 < breaks.size (); i++)

     {
       int r = Paper_column::get_rank (cols[breaks[i]]);
     {
       int r = Paper_column::get_rank (cols[breaks[i]]);

-      if (start == r)
-       start_index = i;
-      if (end == r)
-       end_index = i;
-    }
-  if (end == INT_MAX)
-    end_index = breaks.size () - 1;
+      if (r >= end)
+       break;

 
 

-  if (start_index == VPOS || end_index == VPOS)
-    {
-      programming_error (_ ("tried to calculate pure-height at a non-breakpoint"));
-      return Interval (0, 0);
+      if (r >= start)
+       ext.unite (ly_scm2interval (scm_c_vector_ref (extents, i)));

     }
 
     }
 

-  SCM extents = me->get_property ("cached-pure-extents");
-  if (!scm_is_vector (extents))
+  return ext;
+}
+
+MAKE_SCHEME_CALLBACK (Axis_group_interface, adjacent_pure_heights, 1)
+SCM
+Axis_group_interface::adjacent_pure_heights (SCM smob)
+{
+  Grob *me = unsmob_grob (smob);
+
+  Grob *common = calc_pure_elts_and_common (me);
+  extract_grob_set (me, "pure-relevant-items", items);
+  extract_grob_set (me, "pure-relevant-spanners", spanners);
+
+  Paper_score *ps = get_root_system (me)->paper_score ();
+  vector<vsize> breaks = ps->get_break_indices ();
+  vector<Grob*> cols = ps->get_columns ();
+
+  SCM ret = scm_c_make_vector (breaks.size () - 1, SCM_EOL);
+  vsize it_index = 0;
+  for (vsize i = 0; i + 1 < breaks.size (); i++)

     {
     {

-      extents = scm_c_make_vector (breaks.size () - 1, SCM_EOL);
-      for (vsize i = 0; i + 1 < breaks.size (); i++)
+      int start = Paper_column::get_rank (cols[breaks[i]]);
+      int end = Paper_column::get_rank (cols[breaks[i+1]]);
+      Interval iv;
+
+      for (vsize j = it_index; j < items.size (); j++)

        {
        {

-         int st = Paper_column::get_rank (cols[breaks[i]]);
-         int ed = Paper_column::get_rank (cols[breaks[i+1]]);
-         Interval iv = relative_pure_height (me, elts, common, st, ed, false);
-         scm_vector_set_x (extents, scm_from_int (i), ly_interval2scm (iv));
+         Item *it = dynamic_cast<Item*> (items[j]);
+         int rank = it->get_column ()->get_rank ();
+
+         if (rank <= end && it->pure_is_visible (start, end)
+             && !to_boolean (it->get_property ("cross-staff")))
+           {
+             Interval dims = items[j]->pure_height (common, start, end);
+             if (!dims.is_empty ())
+               iv.unite (dims);
+           }
+
+         if (rank < end)
+           it_index++;
+         else if (rank > end)
+           break;

        }
        }

-      me->set_property ("cached-pure-extents", extents);
-    }

 
 

-  Interval ext (0, 0);
-  for (vsize i = start_index; i < end_index; i++)
-    ext.unite (ly_scm2interval (scm_c_vector_ref (extents, i)));
-  return ext;
+      for (vsize j = 0; j < spanners.size (); j++)
+       {
+         Interval_t<int> rank_span = spanners[j]->spanned_rank_interval ();
+         if (rank_span[LEFT] <= end && rank_span[RIGHT] >= start
+             && !to_boolean (spanners[j]->get_property ("cross-staff")))
+           {
+             Interval dims = spanners[j]->pure_height (common, start, end);
+             if (!dims.is_empty ())
+               iv.unite (dims);
+           }
+       }
+
+      scm_vector_set_x (ret, scm_from_int (i), ly_interval2scm (iv));
+    }
+  return ret;

 }
 
 Interval
 }
 
 Interval

-Axis_group_interface::relative_pure_height (Grob *me,
-                                           vector<Grob*> const &elts,
-                                           Grob *common,
-                                           int start, int end,
-                                           bool use_cache)
+Axis_group_interface::relative_pure_height (Grob *me, int start, int end)

 {
   /* It saves a _lot_ of time if we assume a VerticalAxisGroup is additive
 {
   /* It saves a _lot_ of time if we assume a VerticalAxisGroup is additive

-     (ie. height (i, k) = height (i, j) + height (j, k) for all i <= j <= k).
+     (ie. height (i, k) = max (height (i, j) height (j, k)) for all i <= j <= k).

      Unfortunately, it isn't always true, particularly if there is a
      VerticalAlignment somewhere in the descendants.
 
      Unfortunately, it isn't always true, particularly if there is a
      VerticalAlignment somewhere in the descendants.
 


@@ -145,18 +178,38 @@ Axis_group_interface::relative_pure_height (Grob *me,
      reasonably safe to assume that if our parent is a VerticalAlignment,
      we can assume additivity and cache things nicely. */
   Grob *p = me->get_parent (Y_AXIS);
      reasonably safe to assume that if our parent is a VerticalAlignment,
      we can assume additivity and cache things nicely. */
   Grob *p = me->get_parent (Y_AXIS);

-  if (use_cache && p && Align_interface::has_interface (p))
-    return Axis_group_interface::cached_pure_height (me, elts, common, start, end);
+  if (p && Align_interface::has_interface (p))
+    return Axis_group_interface::cached_pure_height (me, start, end);
+
+  Grob *common = calc_pure_elts_and_common (me);
+  extract_grob_set (me, "pure-relevant-items", items);
+  extract_grob_set (me, "pure-relevant-spanners", spanners);

 
   Interval r;
 
 
   Interval r;
 

-  for (vsize i = 0; i < elts.size (); i++)
+  for (vsize i = 0; i < items.size (); i++)

     {
     {

-      Interval_t<int> rank_span = elts[i]->spanned_rank_iv ();
-      Item *it = dynamic_cast<Item*> (elts[i]);
-      if (rank_span[LEFT] <= end && rank_span[RIGHT] >= start && (!it || it->pure_is_visible (start, end)))
+      Item *it = dynamic_cast<Item*> (items[i]);
+      int rank = it->get_column ()->get_rank ();
+
+      if (rank > end)
+       break;
+      else if (rank >= start && it->pure_is_visible (start, end)
+              && !to_boolean (it->get_property ("cross-staff")))

        {
        {

-         Interval dims = elts[i]->pure_height (common, start, end);
+         Interval dims = it->pure_height (common, start, end);
+         if (!dims.is_empty ())
+           r.unite (dims);
+       }
+    }
+
+  for (vsize i = 0; i < spanners.size (); i++)
+    {
+      Interval_t<int> rank_span = spanners[i]->spanned_rank_interval ();
+      if (rank_span[LEFT] <= end && rank_span[RIGHT] >= start
+         && !to_boolean (spanners[i]->get_property ("cross-staff")))
+       {
+         Interval dims = spanners[i]->pure_height (common, start, end);

          if (!dims.is_empty ())
            r.unite (dims);
        }
          if (!dims.is_empty ())
            r.unite (dims);
        }


@@ -199,7 +252,7 @@ Axis_group_interface::pure_height (SCM smob, SCM start_scm, SCM end_scm)
        return scm_cdr (system_y_extent);
     }
 
        return scm_cdr (system_y_extent);
     }
 

-  return pure_group_height (me, start, end);
+  return ly_interval2scm (pure_group_height (me, start, end));

 }
 
 MAKE_SCHEME_CALLBACK (Axis_group_interface, calc_skylines, 1);
 }
 
 MAKE_SCHEME_CALLBACK (Axis_group_interface, calc_skylines, 1);


@@ -208,7 +261,9 @@ Axis_group_interface::calc_skylines (SCM smob)
 {
   Grob *me = unsmob_grob (smob);
   extract_grob_set (me, "elements", elts);
 {
   Grob *me = unsmob_grob (smob);
   extract_grob_set (me, "elements", elts);

-  return skyline_spacing (me, elts).smobbed_copy ();
+  Skyline_pair skylines = skyline_spacing (me, elts);
+
+  return skylines.smobbed_copy ();

 }
 
 /* whereas calc_skylines calculates skylines for axis-groups with a lot of
 }
 
 /* whereas calc_skylines calculates skylines for axis-groups with a lot of


@@ -224,18 +279,21 @@ Axis_group_interface::combine_skylines (SCM smob)
   Grob *me = unsmob_grob (smob);
   extract_grob_set (me, "elements", elements);
   Grob *y_common = common_refpoint_of_array (elements, me, Y_AXIS);
   Grob *me = unsmob_grob (smob);
   extract_grob_set (me, "elements", elements);
   Grob *y_common = common_refpoint_of_array (elements, me, Y_AXIS);

+  Grob *x_common = common_refpoint_of_array (elements, me, X_AXIS);

 
 

-  assert (y_common == me);
+  if (y_common != me)
+    programming_error ("combining skylines that don't belong to me");

 
   Skyline_pair ret;
   for (vsize i = 0; i < elements.size (); i++)
     {
 
   Skyline_pair ret;
   for (vsize i = 0; i < elements.size (); i++)
     {

-      SCM skyline_scm = elements[i]->get_property ("skylines");
+      SCM skyline_scm = elements[i]->get_property ("vertical-skylines");

       if (Skyline_pair::unsmob (skyline_scm))
        {
          Real offset = elements[i]->relative_coordinate (y_common, Y_AXIS);
          Skyline_pair other = *Skyline_pair::unsmob (skyline_scm);
          other.raise (offset);
       if (Skyline_pair::unsmob (skyline_scm))
        {
          Real offset = elements[i]->relative_coordinate (y_common, Y_AXIS);
          Skyline_pair other = *Skyline_pair::unsmob (skyline_scm);
          other.raise (offset);

+         other.shift (elements[i]->relative_coordinate (x_common, X_AXIS));

          ret.merge (other);
        }
     }
          ret.merge (other);
        }
     }


@@ -246,7 +304,8 @@ SCM
 Axis_group_interface::generic_group_extent (Grob *me, Axis a)
 {
   /* trigger the callback to do skyline-spacing on the children */
 Axis_group_interface::generic_group_extent (Grob *me, Axis a)
 {
   /* trigger the callback to do skyline-spacing on the children */

-  (void) me->get_property ("skylines");
+  if (a == Y_AXIS)
+    (void) me->get_property ("vertical-skylines");

 
   extract_grob_set (me, "elements", elts);
   Grob *common = common_refpoint_of_array (elts, me, a);
 
   extract_grob_set (me, "elements", elts);
   Grob *common = common_refpoint_of_array (elts, me, a);


@@ -257,6 +316,22 @@ Axis_group_interface::generic_group_extent (Grob *me, Axis a)
   return ly_interval2scm (r - my_coord);
 }
 
   return ly_interval2scm (r - my_coord);
 }
 

+/* This is like generic_group_extent, but it only counts the grobs that
+   are children of some other axis-group. This is uncached; if it becomes
+   commonly used, it may be necessary to cache it somehow. */
+Interval
+Axis_group_interface::staff_extent (Grob *me, Grob *refp, Axis ext_a, Grob *staff, Axis parent_a)
+{
+  extract_grob_set (me, "elements", elts);
+  vector<Grob*> new_elts;
+
+  for (vsize i = 0; i < elts.size (); i++)
+    if (elts[i]->common_refpoint (staff, parent_a) == staff)
+      new_elts.push_back (elts[i]);
+
+  return relative_group_extent (new_elts, refp, ext_a);
+}
+

 
 Grob *
 Axis_group_interface::calc_pure_elts_and_common (Grob *me)
 
 Grob *
 Axis_group_interface::calc_pure_elts_and_common (Grob *me)


@@ -266,13 +341,20 @@ Axis_group_interface::calc_pure_elts_and_common (Grob *me)
   
   extract_grob_set (me, "elements", elts);
 
   
   extract_grob_set (me, "elements", elts);
 

-  vector<Grob*> relevant_elts;
+  vector<Grob*> relevant_items;
+  vector<Grob*> relevant_spanners;

   SCM pure_relevant_p = ly_lily_module_constant ("pure-relevant?");
 
   for (vsize i = 0; i < elts.size (); i++)
     {
       if (to_boolean (scm_apply_1 (pure_relevant_p, elts[i]->self_scm (), SCM_EOL)))
   SCM pure_relevant_p = ly_lily_module_constant ("pure-relevant?");
 
   for (vsize i = 0; i < elts.size (); i++)
     {
       if (to_boolean (scm_apply_1 (pure_relevant_p, elts[i]->self_scm (), SCM_EOL)))

-       relevant_elts.push_back (elts[i]);
+       {
+         if (dynamic_cast<Item*> (elts[i]))
+           relevant_items.push_back (elts[i]);
+         else if (dynamic_cast<Spanner*> (elts[i]))
+           relevant_spanners.push_back (elts[i]);
+       }
+           

 
       Item *it = dynamic_cast<Item*> (elts[i]);
       Direction d = LEFT;
 
       Item *it = dynamic_cast<Item*> (elts[i]);
       Direction d = LEFT;


@@ -281,18 +363,24 @@ Axis_group_interface::calc_pure_elts_and_common (Grob *me)
          {
            Item *piece = it->find_prebroken_piece (d);
            if (piece && to_boolean (scm_apply_1 (pure_relevant_p, piece->self_scm (), SCM_EOL)))
          {
            Item *piece = it->find_prebroken_piece (d);
            if (piece && to_boolean (scm_apply_1 (pure_relevant_p, piece->self_scm (), SCM_EOL)))

-             relevant_elts.push_back (piece);
+             relevant_items.push_back (piece);

          }
        while (flip (&d) != LEFT);
     }
          }
        while (flip (&d) != LEFT);
     }

+  vector_sort (relevant_items, Item::less);
+
+  Grob *common = common_refpoint_of_array (relevant_items, me, Y_AXIS);
+  common = common_refpoint_of_array (relevant_spanners, common, Y_AXIS);

 
 

-  Grob *common = common_refpoint_of_array (relevant_elts, me, Y_AXIS);

   me->set_object ("pure-Y-common", common->self_scm ());
   
   me->set_object ("pure-Y-common", common->self_scm ());
   

-  SCM ga_scm = Grob_array::make_array ();
-  Grob_array *ga = unsmob_grob_array (ga_scm);
-  ga->set_array (relevant_elts);
-  me->set_object ("pure-relevant-elements", ga_scm);
+  SCM items_scm = Grob_array::make_array ();
+  SCM spanners_scm = Grob_array::make_array ();
+
+  unsmob_grob_array (items_scm)->set_array (relevant_items);
+  unsmob_grob_array (spanners_scm)->set_array (relevant_spanners);
+  me->set_object ("pure-relevant-items", items_scm);
+  me->set_object ("pure-relevant-spanners", spanners_scm);

 
   return common;
 }
 
   return common;
 }


@@ -319,16 +407,15 @@ Axis_group_interface::calc_y_common (SCM grob)
   return common->self_scm ();
 }
 
   return common->self_scm ();
 }
 

-SCM
+Interval

 Axis_group_interface::pure_group_height (Grob *me, int start, int end)
 {
   Grob *common = calc_pure_elts_and_common (me);
        
 Axis_group_interface::pure_group_height (Grob *me, int start, int end)
 {
   Grob *common = calc_pure_elts_and_common (me);
        

-  extract_grob_set (me, "pure-relevant-elements", elts);

   Real my_coord = me->relative_coordinate (common, Y_AXIS);
   Real my_coord = me->relative_coordinate (common, Y_AXIS);

-  Interval r (relative_pure_height (me, elts, common, start, end, true));
+  Interval r (relative_pure_height (me, start, end));

 
 

-  return ly_interval2scm (r - my_coord);
+  return r - my_coord;

 }
 
 void
 }
 
 void


@@ -372,18 +459,27 @@ staff_priority_less (Grob * const &g1, Grob * const &g2)
 }
 
 static void
 }
 
 static void

-add_boxes (Grob *me, Grob *x_common, Grob *y_common, vector<Box> *const boxes)
+add_boxes (Grob *me, Grob *x_common, Grob *y_common, vector<Box> *const boxes, Skyline_pair *skylines)

 {
 {

-  /* if we are a parent, consider the children's boxes instead of mine */
-  if (Grob_array *elements = unsmob_grob_array (me->get_object ("elements")))
+  /* if a child has skylines, use them instead of the extent box */
+  if (Skyline_pair *pair = Skyline_pair::unsmob (me->get_property ("vertical-skylines")))
+    {
+      Skyline_pair s = *pair;
+      s.shift (me->relative_coordinate (x_common, X_AXIS));
+      s.raise (me->relative_coordinate (y_common, Y_AXIS));
+      skylines->merge (s);
+    }
+  else if (Grob_array *elements = unsmob_grob_array (me->get_object ("elements")))

     {
       for (vsize i = 0; i < elements->size (); i++)
     {
       for (vsize i = 0; i < elements->size (); i++)

-       add_boxes (elements->grob (i), x_common, y_common, boxes);
+       add_boxes (elements->grob (i), x_common, y_common, boxes, skylines);

     }
   else if (!scm_is_number (me->get_property ("outside-staff-priority"))
           && !to_boolean (me->get_property ("cross-staff")))
     }
   else if (!scm_is_number (me->get_property ("outside-staff-priority"))
           && !to_boolean (me->get_property ("cross-staff")))

-    boxes->push_back (Box (me->extent (x_common, X_AXIS),
-                          me->extent (y_common, Y_AXIS)));
+    {
+      boxes->push_back (Box (me->extent (x_common, X_AXIS),
+                            me->extent (y_common, Y_AXIS)));
+    }

 }
 
 /* We want to avoid situations like this:
 }
 
 /* We want to avoid situations like this:


@@ -401,7 +497,7 @@ add_boxes (Grob *me, Grob *x_common, Grob *y_common, vector<Box> *const boxes)
    positions, one for above the staff, one for below).
 
    In each pass, we loop through the unplaced grobs from left to right.
    positions, one for above the staff, one for below).
 
    In each pass, we loop through the unplaced grobs from left to right.

-   If the grob overlaps the right-most affected position, we place it
+   If the grob doesn't overlap the right-most affected position, we place it

    (and then update the right-most affected position to point to the right
    edge of the just-placed grob).  Otherwise, we skip it until the next pass.
 */
    (and then update the right-most affected position to point to the right
    edge of the just-placed grob).  Otherwise, we skip it until the next pass.
 */


@@ -437,9 +533,7 @@ add_grobs_of_one_priority (Skyline_pair *const skylines,
          if (b[X_AXIS][LEFT] - 2*horizon_padding < last_affected_position[dir])
            continue;
 
          if (b[X_AXIS][LEFT] - 2*horizon_padding < last_affected_position[dir])
            continue;
 

-         if (b[X_AXIS].is_empty () || b[Y_AXIS].is_empty ())
-           warning (_f ("outside-staff object %s has an empty extent", elements[i]->name ().c_str ()));
-         else
+         if (!b[X_AXIS].is_empty () && !b[Y_AXIS].is_empty ())

            {
              boxes.clear ();
              boxes.push_back (b);
            {
              boxes.clear ();
              boxes.push_back (b);


@@ -477,11 +571,14 @@ Axis_group_interface::skyline_spacing (Grob *me, vector<Grob*> elements)
   vsize i = 0;
   vector<Box> boxes;
 
   vsize i = 0;
   vector<Box> boxes;
 

+  Skyline_pair skylines;

   for (i = 0; i < elements.size ()
         && !scm_is_number (elements[i]->get_property ("outside-staff-priority")); i++)
   for (i = 0; i < elements.size ()
         && !scm_is_number (elements[i]->get_property ("outside-staff-priority")); i++)

-    add_boxes (elements[i], x_common, y_common, &boxes);
+    add_boxes (elements[i], x_common, y_common, &boxes, &skylines);

 
 

-  Skyline_pair skylines (boxes, 0, X_AXIS);
+  SCM padding_scm = me->get_property ("skyline-horizontal-padding");
+  Real padding = robust_scm2double (padding_scm, 0.1);
+  skylines.merge (Skyline_pair (boxes, padding, X_AXIS));

   for (; i < elements.size (); i++)
     {
       SCM priority = elements[i]->get_property ("outside-staff-priority");
   for (; i < elements.size (); i++)
     {
       SCM priority = elements[i]->get_property ("outside-staff-priority");


@@ -493,6 +590,7 @@ Axis_group_interface::skyline_spacing (Grob *me, vector<Grob*> elements)
 
       add_grobs_of_one_priority (&skylines, current_elts, x_common, y_common);
     }
 
       add_grobs_of_one_priority (&skylines, current_elts, x_common, y_common);
     }

+  skylines.shift (-me->relative_coordinate (x_common, X_AXIS));

   return skylines;
 }
 
   return skylines;
 }
 


@@ -511,6 +609,24 @@ Axis_group_interface::calc_max_stretch (SCM smob)
   return scm_from_double (ret);
 }
 
   return scm_from_double (ret);
 }
 

+extern bool debug_skylines;
+MAKE_SCHEME_CALLBACK (Axis_group_interface, print, 1)
+SCM
+Axis_group_interface::print (SCM smob)
+{
+  if (!debug_skylines)
+    return SCM_BOOL_F;
+
+  Grob *me = unsmob_grob (smob);
+  Stencil ret;
+  if (Skyline_pair *s = Skyline_pair::unsmob (me->get_property ("vertical-skylines")))
+    {
+      ret.add_stencil (Lookup::points_to_line_stencil (0.1, (*s)[UP].to_points (X_AXIS)).in_color (255, 0, 255));
+      ret.add_stencil (Lookup::points_to_line_stencil (0.1, (*s)[DOWN].to_points (X_AXIS)).in_color (0, 255, 255));
+    }
+  return ret.smobbed_copy ();
+}
+

 ADD_INTERFACE (Axis_group_interface,
 
               "An object that groups other layout objects.",
 ADD_INTERFACE (Axis_group_interface,
 
               "An object that groups other layout objects.",


@@ -518,12 +634,14 @@ ADD_INTERFACE (Axis_group_interface,
               /* properties */
               "X-common "
               "Y-common "
               /* properties */
               "X-common "
               "Y-common "

+              "adjacent-pure-heights "

               "axes "
               "elements "
               "keep-fixed-while-stretching "
               "max-stretch "
               "axes "
               "elements "
               "keep-fixed-while-stretching "
               "max-stretch "

+              "no-alignment "

               "pure-Y-common "
               "pure-Y-common "

-              "pure-relevant-elements "
-              "skylines "
-              "cached-pure-extents "
+              "pure-relevant-items "
+              "pure-relevant-spanners "
+              "vertical-skylines "

               );
               );