X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=lily%2Fstencil-interpret.cc;h=87e6496de778e2f3bfe3ed03fdfacd6a094ed47a;hb=816e284fa77d827aef6fd0dc73d67296520dfe33;hp=e85ad90f43a2904374d7d9c402890036c24b4611;hpb=f93e4199873c91ae32f0e84a610d14853dc379df;p=lilypond.git

diff --git a/lily/stencil-interpret.cc b/lily/stencil-interpret.cc
index e85ad90f43..87e6496de7 100644
--- a/lily/stencil-interpret.cc
+++ b/lily/stencil-interpret.cc
@@ -1,7 +1,7 @@
 /*
   This file is part of LilyPond, the GNU music typesetter.
 
-  Copyright (C) 2005--2011 Han-Wen Nienhuys <hanwen@xs4all.nl>
+  Copyright (C) 2005--2015 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
@@ -21,7 +21,7 @@
 
 void
 interpret_stencil_expression (SCM expr,
-                              void (*func) (void *, SCM),
+                              SCM (*func) (void *, SCM),
                               void *func_arg,
                               Offset o)
 {
@@ -32,36 +32,40 @@ interpret_stencil_expression (SCM expr,
 
       SCM head = scm_car (expr);
 
-      if (head == ly_symbol2scm ("delay-stencil-evaluation"))
+      if (scm_is_eq (head, ly_symbol2scm ("delay-stencil-evaluation")))
         {
           interpret_stencil_expression (scm_force (scm_cadr (expr)), func, func_arg, o);
           return;
         }
-      if (head == ly_symbol2scm ("footnote"))
+      if (scm_is_eq (head, ly_symbol2scm ("transparent-stencil")))
         return;
-      if (head == ly_symbol2scm ("translate-stencil"))
+      if (scm_is_eq (head, ly_symbol2scm ("footnote")))
+        return;
+      if (scm_is_eq (head, ly_symbol2scm ("translate-stencil")))
         {
           o += ly_scm2offset (scm_cadr (expr));
           expr = scm_caddr (expr);
         }
-      else if (head == ly_symbol2scm ("combine-stencil"))
+      else if (scm_is_eq (head, ly_symbol2scm ("combine-stencil")))
         {
 
           for (SCM x = scm_cdr (expr); scm_is_pair (x); x = scm_cdr (x))
             interpret_stencil_expression (scm_car (x), func, func_arg, o);
           return;
         }
-      else if (head == ly_symbol2scm ("grob-cause"))
+      else if (scm_is_eq (head, ly_symbol2scm ("grob-cause")))
         {
           SCM grob = scm_cadr (expr);
 
-          (*func) (func_arg, scm_list_3 (head,
-                                         ly_quote_scm (ly_offset2scm (o)), grob));
+          SCM link =
+            (*func) (func_arg,
+                     scm_list_3 (head, ly_quote_scm (ly_offset2scm (o)), grob));
           interpret_stencil_expression (scm_caddr (expr), func, func_arg, o);
-          (*func) (func_arg, scm_list_1 (ly_symbol2scm ("no-origin")));
+          if (scm_is_true (link))
+            (*func) (func_arg, scm_list_1 (ly_symbol2scm ("no-origin")));
           return;
         }
-      else if (head == ly_symbol2scm ("color"))
+      else if (scm_is_eq (head, ly_symbol2scm ("color")))
         {
           SCM color = scm_cadr (expr);
           SCM r = scm_car (color);
@@ -74,7 +78,17 @@ interpret_stencil_expression (SCM expr,
 
           return;
         }
-      else if (head == ly_symbol2scm ("rotate-stencil"))
+      else if (scm_is_eq (head, ly_symbol2scm ("id")))
+        {
+          SCM id = scm_cadr (expr);
+
+          (*func) (func_arg, scm_list_2 (ly_symbol2scm ("start-enclosing-id-node"), id));
+          interpret_stencil_expression (scm_caddr (expr), func, func_arg, o);
+          (*func) (func_arg, scm_list_1 (ly_symbol2scm ("end-enclosing-id-node")));
+
+          return;
+        }
+      else if (scm_is_eq (head, ly_symbol2scm ("rotate-stencil")))
         {
           SCM args = scm_cadr (expr);
           SCM angle = scm_car (args);
@@ -90,7 +104,7 @@ interpret_stencil_expression (SCM expr,
 
           return;
         }
-      else if (head == ly_symbol2scm ("scale-stencil"))
+      else if (scm_is_eq (head, ly_symbol2scm ("scale-stencil")))
         {
           SCM args = scm_cadr (expr);
           SCM x_scale = scm_car (args);
@@ -123,12 +137,12 @@ struct Font_list
   SCM fonts_;
 };
 
-static void
+static SCM
 find_font_function (void *fs, SCM x)
 {
   Font_list *me = (Font_list *) fs;
 
-  if (scm_car (x) == ly_symbol2scm ("placebox"))
+  if (scm_is_eq (scm_car (x), ly_symbol2scm ("placebox")))
     {
       SCM args = scm_cdr (x);
       SCM what = scm_caddr (args);
@@ -136,12 +150,13 @@ find_font_function (void *fs, SCM x)
       if (scm_is_pair (what))
         {
           SCM head = scm_car (what);
-          if (ly_symbol2scm ("text") == head)
+          if (scm_is_eq (head, ly_symbol2scm ("text")))
             me->fonts_ = scm_cons (scm_cadr (what), me->fonts_);
-          else if (head == ly_symbol2scm ("char"))
+          else if (scm_is_eq (head, ly_symbol2scm ("char")))
             me->fonts_ = scm_cons (scm_cadr (what), me->fonts_);
         }
     }
+  return SCM_BOOL_T;
 }
 
 SCM