2003 -> 2004

[lilypond.git] / lily / text-item.cc

diff --git a/lily/text-item.cc b/lily/text-item.cc
index f9fca7840e1f997a6224e443d3f21bd127b773d1..1c4e596bf1f091927548ca1e0df5b2cc1255043f 100644 (file)
--- a/lily/text-item.cc
+++ b/lily/text-item.cc
@@ -1,83 +1,87 @@
-/*
+/*   
   text-item.cc -- implement Text_item
 
   source file of the GNU LilyPond music typesetter
+  
+  (c) 1998--2004 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+  Jan Nieuwenhuizen <janneke@gnu.org>
+ */
+#include <math.h>
 
-  (c)  1997--1998 Han-Wen Nienhuys <hanwen@cs.uu.nl>
-*/
-
-
-#include "musical-request.hh"
-#include "paper-def.hh"
+#include "warn.hh"
+#include "grob.hh"
 #include "text-item.hh"
-#include "stem.hh"
-#include "molecule.hh"
-#include "lookup.hh"
-#include "debug.hh"
-
-Text_item::Text_item (General_script_def* tdef_l, Direction d) 
-{
-  dir_ = d;
-  fat_b_ = false;
-  tdef_p_ = tdef_l->clone ();
-}
-
-Text_item::~Text_item ()
-{
-  delete tdef_p_;
-}
-
-void
-Text_item::do_pre_processing ()
-{
-  if (!dir_)
-    dir_ = DOWN;
-}
+#include "font-interface.hh"
+#include "virtual-font-metric.hh"
+#include "paper-def.hh"
 
-Real
-Text_item::get_position_f () const
+MAKE_SCHEME_CALLBACK(Text_item,interpret_markup,3);
+SCM
+Text_item::interpret_markup (SCM paper, SCM props, SCM markup)
 {
-  // uhuh, tdef/gdef?
-  if (Text_def *tdl = dynamic_cast<Text_def*>(tdef_p_))
+  if (gh_string_p (markup))
     {
-      if (tdl->style_str_ != "finger") // HUHH?
-       return Staff_side::get_position_f ();
+      Paper_def *pap = unsmob_paper (paper);
+      Font_metric *fm = select_font (pap, props);
+  
+      SCM list = scm_list_n (ly_symbol2scm ("text"), markup, SCM_UNDEFINED);
+      
+      if (dynamic_cast<Virtual_font_metric*> (fm))
+       {
+         /*
+           ARGH.
+         */
+         programming_error ("Can't use virtual font for text.");
+       }
+      else
+       list = fontify_atom (fm, list);
+
+      Box b = fm->text_dimension (ly_scm2string (markup));
+      return Molecule (b, list).smobbed_copy();
     }
-
-  if (!dir_)
+  else if (gh_pair_p (markup))
     {
-      warning (_ ("Text_item::get_position_f(): "
-                "somebody forgot to set my vertical direction, returning -20"));
-      return -20;
+      SCM func = gh_car (markup);
+      SCM args = gh_cdr (markup);
+      if (!markup_p (markup))
+       programming_error ("Markup head has no markup signature.");
+      
+      return scm_apply_2 (func, paper, props, args);
+    }
+  else
+    {
+      return SCM_EOL;
     }
-
-  Interval v = support_extent ();
-  // add no extra: fingers should be just above note, no?
-  return v[dir_];
 }
 
-Interval
-Text_item::symbol_height () const
+MAKE_SCHEME_CALLBACK(Text_item,brew_molecule,1);
+SCM
+Text_item::brew_molecule (SCM grob)
 {
-  return tdef_p_->get_atom (paper (), dir_).dim_.y ();
-}
+  Grob * me = unsmob_grob (grob);
   
-Molecule*
-Text_item::brew_molecule_p () const
-{
-  Atom a (tdef_p_->get_atom (paper (), dir_));
+  SCM t = me->get_grob_property ("text");
+  SCM chain = Font_interface::font_alist_chain (me);
+  return interpret_markup (me->get_paper ()->self_scm (), chain, t);
+}
 
 
-  if (fat_b_)
-    a.dim_[X_AXIS] = tdef_p_->width (paper ());
-  Molecule* mol_p = new Molecule (a);
+/*
+  Ugh. Duplicated from Scheme.
+ */
+bool
+Text_item::markup_p (SCM x)
+{
+  return
+    gh_string_p (x) ||
+    (gh_pair_p (x)
+     && SCM_BOOL_F != scm_object_property (gh_car (x), ly_symbol2scm ("markup-signature")));
+}
+
+ADD_INTERFACE (Text_item,"text-interface",
+  "A scheme markup text, see @ref{Markup functions}.",
+  "text baseline-skip word-space");
 
-  if (dir_<0)          // should do something better anyway.
-    mol_p->translate_axis (mol_p->extent ().y ().left , Y_AXIS);
-  mol_p->translate_axis (coordinate_offset_f_, Y_AXIS);
 
-  return mol_p;
-}
 
 
-IMPLEMENT_IS_TYPE_B1 (Text_item,Item);