X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=lily%2Fballoon.cc;h=5409bd52d556a1cf6ba6864c401293cbd94a9a80;hb=5b4b0d6e9a197e8f9eb085b7c2ad78b8be3e5cfc;hp=6c29895f4b56a12b08039a6e7d37aaaf3da556db;hpb=402045837e7134cdf90d1fcf31768c62227a4936;p=lilypond.git

diff --git a/lily/balloon.cc b/lily/balloon.cc
index 6c29895f4b..5409bd52d5 100644
--- a/lily/balloon.cc
+++ b/lily/balloon.cc
@@ -1,94 +1,80 @@
 /*
-  balloon.cc -- implement Balloon objects
- */
+  balloon.cc -- implement Balloon
 
-#include "text-item.hh"
+  source file of the GNU LilyPond music typesetter
+
+  (c) 2004--2008 Han-Wen Nienhuys <hanwen@xs4all.nl>
+*/
+
+#include "text-interface.hh"
 #include "grob.hh"
 #include "line-interface.hh"
 #include "lookup.hh"
 #include "font-interface.hh"
-#include "stencil.hh"
 #include "lily-guile.hh"
-#include "paper-def.hh"
+#include "output-def.hh"
 #include "misc.hh"
 
-struct Balloon_interface
+class Balloon_interface
 {
-  
 public:
   DECLARE_SCHEME_CALLBACK (print, (SCM));
-  static bool has_interface (Grob*);
+  DECLARE_GROB_INTERFACE ();
 };
 
 MAKE_SCHEME_CALLBACK (Balloon_interface, print, 1);
 SCM
-Balloon_interface::print (SCM smob) 
+Balloon_interface::print (SCM smob)
 {
-  Grob *me= unsmob_grob (smob);
-
-  SCM cb = me->get_grob_property ("balloon-original-callback");
-  SCM scm_mol  =  SCM_EOL;
-
-  if (gh_procedure_p (cb))
-    {
-      scm_mol = scm_call_1 (cb, smob);
-    }
-
-  if (!unsmob_stencil (scm_mol))
-    return scm_mol;
-
-  SCM scm_off = me->get_grob_property ("balloon-text-offset");
-
-  if (!is_number_pair (scm_off))
-    return scm_mol;
-
-  Offset off = ly_scm2offset (scm_off);
-  Stencil * m = unsmob_stencil (scm_mol);
-  Box orig_extent = m->extent_box ();
-  Box box_extent = orig_extent;
+  Grob *me = unsmob_grob (smob);
 
-  Real w = robust_scm2double (me->get_grob_property ("balloon-padding"),  .1);
-  box_extent.widen (w, w);
+  Grob *p = me->get_parent (X_AXIS);
   
-  
-  Stencil fr = Lookup::frame (box_extent, 0.1, 0.05);
+  Offset off (me->relative_coordinate (p, X_AXIS),
+	      me->relative_coordinate (p, Y_AXIS));
 
-  
-  fr.add_stencil (*m);
+  Box b (p->extent (p, X_AXIS),
+	 p->extent (p, Y_AXIS));
 
+  Real padding = robust_scm2double (me->get_property ("padding"), .1);
+  b.widen (padding, padding);
 
+  // FIXME
+  Stencil fr = Lookup::frame (b, 0.1, 0.05);
 
-  SCM bt = me->get_grob_property ("balloon-text");
-  SCM chain = Font_interface::font_alist_chain (me);
-  chain = gh_cons (me->get_grob_property ("balloon-text-props"), chain);
+  SCM bt = me->get_property ("text");
+  SCM chain = Font_interface::text_font_alist_chain (me);
 
+  SCM stencil = Text_interface::interpret_markup (me->layout ()->self_scm (),
+						  chain, bt);
 
-  SCM text = Text_item::interpret_markup (me->get_paper ()->self_scm (), chain, bt);
+  Stencil *text_stil = unsmob_stencil (stencil);
 
-  
-  Stencil *text_mol = unsmob_stencil (text);
-  
   Offset z1;
-
   for (int i = X_AXIS; i < NO_AXES; i++)
     {
-      Axis  a((Axis)i);
-      z1[a] = box_extent [a].linear_combination (sign (off[a]));
-      text_mol->align_to (a, -sign (off[a]));
+      Axis a ((Axis)i);
+      z1[a] = b[a].linear_combination (sign (off[a]));
+      text_stil->align_to (a, -sign (off[a]));
     }
 
   Offset z2 = z1 + off;
-  
+
   fr.add_stencil (Line_interface::line (me, z1, z2));
 
-  text_mol->translate (z2);
-  fr.add_stencil (*text_mol);
-  
-  fr = Stencil (orig_extent, fr.get_expr ());
+  text_stil->translate (z2);
+  fr.add_stencil (*text_stil);
+
+  fr.translate (-off);
   return fr.smobbed_copy ();
 }
 
-ADD_INTERFACE (Balloon_interface,"text-balloon-interface",
-	       "comic books.",
-	       "balloon-padding balloon-text-props balloon-text-offset balloon-text balloon-original-callback");
+ADD_INTERFACE (Balloon_interface,
+	       "A collection of routines to put text balloons around an"
+	       " object.",
+
+	       /* properties */
+	       "padding "
+	       "text "
+	       );