]> git.donarmstrong.com Git - lilypond.git/blobdiff - lily/line-spanner.cc
Merge branch 'master' of git://git.savannah.gnu.org/lilypond.git
[lilypond.git] / lily / line-spanner.cc
index 322a4834bd122589c71fffb9d56c05b571610fc5..d55c01ff45b8e391bcb45ffa91970a164d8d35a2 100644 (file)
@@ -1,7 +1,7 @@
 /*
   This file is part of LilyPond, the GNU music typesetter.
 
-  Copyright (C) 2000--2010 Jan Nieuwenhuizen <janneke@gnu.org>
+  Copyright (C) 2000--2011 Jan Nieuwenhuizen <janneke@gnu.org>
 
   LilyPond is free software: you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
@@ -125,48 +125,59 @@ Line_spanner::calc_bound_info (SCM smob, Direction dir)
       Grob *common_y = me->common_refpoint (me->get_bound (dir), Y_AXIS);
       if (me->get_bound (dir)->break_status_dir ())
        {
-         Spanner *next_sp = me->broken_neighbor (dir);
-         Item *next_bound = next_sp->get_bound (dir);
-
-         if (next_bound->break_status_dir ())
+         if (to_boolean (me->get_property ("simple-Y")))
            {
-             programming_error ("no note heads for the line spanner on neighbor line?"
-                                " Confused.");
-             me->suicide ();
-             return SCM_EOL;
+             Spanner *orig = dynamic_cast<Spanner *>(me->original ());
+             Spanner *extreme = dir == LEFT ? orig->broken_intos_.front () : orig->broken_intos_.back ();
+             Grob *e_bound = extreme->get_bound (dir);
+              Grob *e_common_y = extreme->common_refpoint (e_bound, Y_AXIS);
+              y = e_bound->extent (e_common_y, Y_AXIS).center ();
            }
+          else
+            {
+             Spanner *next_sp = me->broken_neighbor (dir);
+             Item *next_bound = next_sp->get_bound (dir);
+
+             if (next_bound->break_status_dir ())
+               {
+                 programming_error ("no note heads for the line spanner on neighbor line?"
+                                    " Confused.");
+                 me->suicide ();
+                 return SCM_EOL;
+               }
+
+             Spanner *next_bound_parent = parent_spanner (next_bound);
+             Interval next_ext = next_bound->extent (next_bound_parent, Y_AXIS);
 
-         Spanner *next_bound_parent = parent_spanner (next_bound);
-         Interval next_ext = next_bound->extent (next_bound_parent, Y_AXIS);
-
-         /*
-           We want to know what would be the y-position of the next
-           bound (relative to my y-parent) if it belonged to the
-           same system as this bound.  We rely on the fact that the
-           y-parent of the next bound is a spanner (probably the
-           VerticalAxisGroup of a staff) that extends over the break.
-         */
-         Spanner *next_bound_parent_on_this_line =
-           next_bound_parent->broken_neighbor (other_dir (dir));
-
-         if (next_bound_parent_on_this_line)
-           {
-             Grob *common = me->common_refpoint (next_bound_parent_on_this_line, Y_AXIS);
-             Real bound_offset = next_bound_parent_on_this_line->relative_coordinate (common, Y_AXIS);
-             y = next_ext.center () + bound_offset - me->relative_coordinate (common, Y_AXIS);
-           }
-         else
-           {
              /*
-               We fall back to assuming that the distance between
-               staves doesn't change over line breaks.
+               We want to know what would be the y-position of the next
+               bound (relative to my y-parent) if it belonged to the
+               same system as this bound.  We rely on the fact that the
+               y-parent of the next bound is a spanner (probably the
+               VerticalAxisGroup of a staff) that extends over the break.
              */
-             programming_error ("next-bound's parent doesn't extend to this line");
-             Grob *next_system = next_bound->get_system ();
-             Grob *this_system = me->get_system ();
-             y = next_ext.center () + next_bound_parent->relative_coordinate (next_system, Y_AXIS)
-               - me->relative_coordinate (this_system, Y_AXIS);
-           }
+             Spanner *next_bound_parent_on_this_line =
+               next_bound_parent->broken_neighbor (other_dir (dir));
+
+             if (next_bound_parent_on_this_line)
+               {
+                 Grob *common = me->common_refpoint (next_bound_parent_on_this_line, Y_AXIS);
+                 Real bound_offset = next_bound_parent_on_this_line->relative_coordinate (common, Y_AXIS);
+                 y = next_ext.center () + bound_offset - me->relative_coordinate (common, Y_AXIS);
+               }
+             else
+               {
+                 /*
+                   We fall back to assuming that the distance between
+                   staves doesn't change over line breaks.
+                 */
+                 programming_error ("next-bound's parent doesn't extend to this line");
+                 Grob *next_system = next_bound->get_system ();
+                 Grob *this_system = me->get_system ();
+                 y = next_ext.center () + next_bound_parent->relative_coordinate (next_system, Y_AXIS)
+                     - me->relative_coordinate (this_system, Y_AXIS);
+               }
+            }
        }
       else
        {
@@ -224,6 +235,9 @@ Line_spanner::print (SCM smob)
 {
   Spanner *me = dynamic_cast<Spanner *> (unsmob_grob (smob));
 
+  // Triggers simple-Y calculations
+  bool simple_y = to_boolean (me->get_property ("simple-Y")) && !to_boolean (me->get_property ("cross-staff"));
+
   Drul_array<SCM> bounds (me->get_property ("left-bound-info"),
                          me->get_property ("right-bound-info"));
 
@@ -246,7 +260,6 @@ Line_spanner::print (SCM smob)
 
   Drul_array<Real> gaps (0, 0);
   Drul_array<bool> arrows (0, 0);
-  Drul_array<Real> anchor_align (0, 0);
   Drul_array<Stencil *> stencils (0,0);
   Drul_array<Grob *> common_y (0, 0);
 
@@ -260,21 +273,29 @@ Line_spanner::print (SCM smob)
                                                 bounds[d], SCM_BOOL_F), 0.0);
       arrows[d] = to_boolean (ly_assoc_get (ly_symbol2scm ("arrow"),
                                            bounds[d], SCM_BOOL_F));
-      anchor_align[d] = robust_scm2double (ly_assoc_get (ly_symbol2scm ("anchor-alignment"),
-                                                        bounds[d], SCM_BOOL_F), LEFT);
       stencils[d] = unsmob_stencil (ly_assoc_get (ly_symbol2scm ("stencil"),
                                                  bounds[d], SCM_BOOL_F));
       common_y[d] = unsmob_grob (ly_assoc_get (ly_symbol2scm ("common-Y"),
                                               bounds[d], SCM_BOOL_F));
       if (!common_y[d])
-       common_y[d] = me; 
+       common_y[d] = me;
     }
   while (flip (&d) != LEFT);
 
   Grob *my_common_y = common_y[LEFT]->common_refpoint (common_y[RIGHT], Y_AXIS);
-  do
-    span_points[d][Y_AXIS] += common_y[d]->relative_coordinate (my_common_y, Y_AXIS);
-  while (flip (&d) != LEFT);
+
+  if (!simple_y)
+    {
+      do
+        span_points[d][Y_AXIS] += common_y[d]->relative_coordinate (my_common_y, Y_AXIS);
+      while (flip (&d) != LEFT);
+    }
+
+  Interval normalized_endpoints = robust_scm2interval (me->get_property ("normalized-endpoints"), Interval (0, 1));
+  Real y_length = span_points[RIGHT][Y_AXIS] - span_points[LEFT][Y_AXIS];
+
+  span_points[LEFT][Y_AXIS] += normalized_endpoints[LEFT] * y_length;
+  span_points[RIGHT][Y_AXIS] -= (1 - normalized_endpoints[RIGHT]) * y_length;
 
   Offset dz = (span_points[RIGHT] - span_points[LEFT]);
   Offset dz_dir = dz.direction ();
@@ -290,17 +311,13 @@ Line_spanner::print (SCM smob)
 
       if (stencils[d])
        {
-         Interval ext = stencils[d]->extent (X_AXIS);
-         Real anchor = ext.linear_combination (anchor_align[d]) - ext[LEFT];
-         span_points[d][X_AXIS] -= anchor;
-
          Stencil s = stencils[d]->translated (span_points[d]);
          SCM align = ly_assoc_get (ly_symbol2scm ("stencil-align-dir-y"),
                                    bounds[d], SCM_BOOL_F);
          SCM off = ly_assoc_get (ly_symbol2scm ("stencil-offset"),
                                  bounds[d], SCM_BOOL_F);
 
-         if (scm_is_number (align)) 
+         if (scm_is_number (align))
            s.align_to (Y_AXIS, scm_to_double (align));
 
          if (is_number_pair (off))
@@ -326,7 +343,7 @@ Line_spanner::print (SCM smob)
   if (line_right[X_AXIS] > line_left[X_AXIS])
     {
       line.add_stencil (Line_interface::line (me, line_left, line_right));
+
       line.add_stencil (Line_interface::arrows (me,
                                                span_points[LEFT],
                                                span_points[RIGHT],
@@ -335,7 +352,7 @@ Line_spanner::print (SCM smob)
     }
 
   line.translate (Offset (-me->relative_coordinate (commonx, X_AXIS),
-                         -me->relative_coordinate (my_common_y, Y_AXIS)));
+                         simple_y ? 0.0 : -me->relative_coordinate (my_common_y, Y_AXIS)));
 
 
   return line.smobbed_copy ();
@@ -352,6 +369,7 @@ ADD_INTERFACE (Line_spanner,
               "left-bound-info "
               "note-columns "
               "right-bound-info "
+              "simple-Y "
               "thickness "
               "to-barline "
               );