*** empty log message ***

[lilypond.git] / lily / self-aligment-interface.cc

diff --git a/lily/self-aligment-interface.cc b/lily/self-aligment-interface.cc
index 870d077d6dc7c8b6cf91eb56dd55604a4b39ca40..2701772381ccea22eaeb8e739208316a0d7d0055 100644 (file)
--- a/lily/self-aligment-interface.cc
+++ b/lily/self-aligment-interface.cc
@@ -1,104 +1,92 @@
+/*
+  self-alignment-interface.cc
+  
+  source file of the GNU LilyPond music typesetter
+  
+  (c) 2004 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+*/
+
 #include "self-alignment-interface.hh"
 #include "warn.hh"
 
-/*
-  Position centered on parent.
- */
-MAKE_SCHEME_CALLBACK (Self_alignment_interface,centered_on_parent,2);
+/* Position centered on parent.  */
+MAKE_SCHEME_CALLBACK (Self_alignment_interface, centered_on_parent, 2);
 SCM
 Self_alignment_interface::centered_on_parent (SCM element_smob, SCM axis)
 {
   Grob *me = unsmob_grob (element_smob);
   Axis a = (Axis) ly_scm2int (axis);
   Grob *him = me->get_parent (a);
-  Interval he = him->extent (him,a);
+  Interval he = him->extent (him, a);
   
   return  scm_make_real (he.is_empty () ? 0.0 : he.center ());
 }
 
-MAKE_SCHEME_CALLBACK (Self_alignment_interface,aligned_on_parent,2);
+MAKE_SCHEME_CALLBACK (Self_alignment_interface, aligned_on_parent, 2);
 SCM
 Self_alignment_interface::aligned_on_parent (SCM element_smob, SCM axis)
 {
   Grob *me = unsmob_grob (element_smob);
   Axis a = (Axis) ly_scm2int (axis);
   Grob *him = me->get_parent (a);
-  Interval he = him->extent (him,a);
+  Interval he = him->extent (him, a);
   
-  SCM sym= (a == X_AXIS) ? ly_symbol2scm ("self-alignment-X"): ly_symbol2scm ("self-alignment-Y");
+  SCM sym= (a == X_AXIS) ? ly_symbol2scm ("self-alignment-X")
+    : ly_symbol2scm ("self-alignment-Y");
   SCM align_prop (me->internal_get_property (sym));
 
   if (!ly_c_number_p (align_prop))
     return scm_int2num (0);
 
   Real x = 0.0;
-
   Real align = ly_scm2double (align_prop);
       
-  Interval ext (me->extent (me,a));
+  Interval ext (me->extent (me, a));
   if (ext.is_empty ())
-    {
-      programming_error ("I'm empty. Can't align on self");
-      
-    }
+    programming_error ("I'm empty. Can't align on self");
   else
     x -= ext.linear_combination (align) ;
 
   if (!he.is_empty ())
-    {
-      x += he.linear_combination (align);
-    }
+    x += he.linear_combination (align);
 
   return scm_make_real (x);
 }
 
-/*
-  Position centered on parent.
- */
-MAKE_SCHEME_CALLBACK (Self_alignment_interface,centered_on_other_axis_parent,2);
+/* Position centered on parent. */
+MAKE_SCHEME_CALLBACK (Self_alignment_interface, centered_on_other_axis_parent, 2);
 SCM
-Self_alignment_interface::centered_on_other_axis_parent (SCM element_smob,
+Self_alignment_interface::centered_on_other_axis_parent (SCM element_smob, 
                                                         SCM axis)
 {
   Grob *me = unsmob_grob (element_smob);
   Axis a = (Axis) ly_scm2int (axis);
   Grob *him = me->get_parent (other_axis (a));
-  Interval he = him->extent (him,a);
+  Interval he = him->extent (him, a);
   
   return  scm_make_real (he.is_empty () ? 0.0 : he.center ());
 }
 
-
-
-
-/**
-  callback that centers the element on itself
-
-  Requires that self-alignment-{X,Y} be set.
- */
-MAKE_SCHEME_CALLBACK (Self_alignment_interface,aligned_on_self,2);
+/** callback that centers the element on itself
+    Requires that self-alignment-{X, Y} be set.  */
+MAKE_SCHEME_CALLBACK (Self_alignment_interface, aligned_on_self, 2);
 SCM
 Self_alignment_interface::aligned_on_self (SCM element_smob, SCM axis)
 {
   Grob *me = unsmob_grob (element_smob);
   Axis a = (Axis) ly_scm2int (axis);
 
-  SCM sym= (a == X_AXIS) ? ly_symbol2scm ("self-alignment-X"): ly_symbol2scm ("self-alignment-Y");
+  SCM sym= (a == X_AXIS) ? ly_symbol2scm ("self-alignment-X")
+    : ly_symbol2scm ("self-alignment-Y");
   
   SCM align (me->internal_get_property (sym));
   if (ly_c_number_p (align))
     {
-      Interval ext (me->extent (me,a));
-
+      Interval ext (me->extent (me, a));
       if (ext.is_empty ())
-       {
-         programming_error ("I'm empty. Can't align on self");
-         return scm_make_real (0.0);
-       }
+       programming_error ("I'm empty. Can't align on self");
       else
-       {
-         return scm_make_real (- ext.linear_combination (ly_scm2double (align)));
-       }
+       return scm_make_real (- ext.linear_combination (ly_scm2double (align)));
     }
   return scm_make_real (0.0);
 }
@@ -117,7 +105,6 @@ ADD_INTERFACE (Self_alignment_interface, "self-alignment-interface",
               " extent of the parent \n"
               "@item Self_alignment_interface::centered_on_other_axis_parent\n"
               " For X-axis, center on the Y-parent, and vice versa.\n "
-              "@end table\n"
-              ,
+              "@end table\n", 
               "self-alignment-X self-alignment-Y");