($(outdir)/%.pdf): add DVIPS_FLAGS. This will

[lilypond.git] / lily / script.cc

diff --git a/lily/script.cc b/lily/script.cc
index 1bcbd518a8eeb899f6b562d1502d3ab285eac778..619f4e420baaea8ee5218b7783a89665b1cbfa6d 100644 (file)
--- a/lily/script.cc
+++ b/lily/script.cc
@@ -1,129 +1,115 @@
-#include "musicalrequest.hh"
-#include "paper-def.hh"
+/*   
+  script.cc --  implement Script_interface
+  
+  source file of the GNU LilyPond music typesetter
+  
+  (c) 1999--2004 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+  
+ */
+
+#include "directional-element-interface.hh"
+#include "warn.hh"
 #include "script.hh"
-#include "stem.hh"
-#include "molecule.hh"
+#include "font-interface.hh"
+#include "side-position-interface.hh"
+#include "paper-def.hh"
+#include "item.hh"
+#include "stencil.hh"
 #include "lookup.hh"
+#include "stem.hh"
+#include "note-column.hh"
 
-
-
-void
-Script::set_stem(Stem*st_l)
+Stencil
+Script_interface::get_stencil (Grob * me, Direction d)
 {
-    stem_l_ = st_l;
-    add_dependency(st_l);
-}
+  SCM s = me->get_grob_property ("script-stencil");
+  assert (gh_pair_p (s));
 
-void
-Script::set_support(Item*i)
-{
-    support.push(i);
-    add_dependency(i);
-}
+  SCM key = ly_car (s);
+  if (key == ly_symbol2scm ("feta"))
+    {
+      SCM name_entry = ly_cdr (s);
 
-Script::Script(Script_req* rq, int staflen)
-{    
-    staffsize =staflen;
-    specs_l_ = rq->scriptdef_p_;
-    stem_l_ = 0;
-    pos = 0;
-    symdir=1;
-    dir =rq->dir_i_;
-}
+      SCM str = (gh_pair_p (name_entry)) ? index_get_cell (name_entry, d) :  name_entry;
+      return Font_interface::get_default_font (me)->find_by_name ("scripts-" +
+                                                                 ly_scm2string (str));
+    }
+ else if (key == ly_symbol2scm ("accordion"))
+    {
+      return Lookup::accordion (ly_cdr (s), 1.0, Font_interface::get_default_font (me));
+    }
+  else
+    assert (false);
 
-void
-Script::set_symdir()
-{
-    if (specs_l_->invertsym)
-       symdir = (dir < 0) ? -1:1;
+  return Stencil ();
 }
 
-void
-Script::set_default_dir()
+MAKE_SCHEME_CALLBACK (Script_interface,before_line_breaking,1);
+SCM
+Script_interface::before_line_breaking (SCM smob)
 {
-    if (specs_l_->stemdir) {
-       if (!stem_l_)
-           dir = 1;
-       else
-           dir = stem_l_->dir * specs_l_->stemdir;
-    }
-}
+  Grob * me = unsmob_grob (smob);
 
-Interval
-Script::support_height() const return r;
-{
-    for (int i=0; i < support.size(); i++)
-       r.unite(support[i]->height());
-}
+  Direction d = Side_position_interface::get_direction (me);
 
-void
-Script::set_default_index()
-{
-    Real inter_f= paper()->internote();
-    Interval dy = symbol().dim.y;
-    
-    int d = specs_l_->staffdir;
-    Real y  ;
-    if (!d) {
-       Interval v= support_height();
-       y = v[dir]  -dy[-dir] + 2*dir*inter_f;
-    } else {
-       y  = (d > 0) ? staffsize + 2: -2; // ug
-       y *=inter_f;
-       Interval v= support_height();
-
-       if (d > 0) {
-           y = y >? v.max();
-       } else if (d < 0) {
-           y = y <? v.min();
-       }
+  if (!d)
+    {
+      /*
+       we should not have `arbitrary' directions. 
+      */
+      programming_error ("Script direction not yet known!");
+      d = DOWN;
     }
-    
-    if (stem_l_) {
-       Interval v= stem_l_->height();
-
-       if (d > 0 || (!d && dir > 0)) {
-           y = y >? v.max();
-       }else if (d < 0 || (!d && dir < 0)) {
-           y = y <? v.min();
+  
+  set_grob_direction (me, d);
+
+  if (Grob * par = me->get_parent (X_AXIS))
+    {
+      Grob * stem = Note_column::get_stem (par);
+      if (stem && Stem::first_head (stem))
+       {
+         me->set_parent (Stem::first_head (stem), X_AXIS);
        }
     }
-    
-    pos = int(rint(Real(y)/inter_f));
+  
+  return SCM_UNSPECIFIED;
 }
 
-Interval
-Script::width() const
-{
-    return symbol().dim.x;
-}
 
-Symbol
-Script::symbol()const
-{
-    String preidx_str = (symdir < 0) ?"-" :"";
-    return paper()->lookup_l()->script(preidx_str + specs_l_->symidx);
-}
+MAKE_SCHEME_CALLBACK (Script_interface,print,1);
 
-void
-Script::do_pre_processing()
+SCM
+Script_interface::print (SCM smob)
 {
-    set_default_dir();
-    set_symdir();
+  Grob *me= unsmob_grob (smob);
+
+  Direction dir = Side_position_interface::get_direction (me);
+  if (!dir)
+    {
+      programming_error ("Script direction not known, but stencil wanted.");
+      dir= DOWN;
+    }
+  
+  return get_stencil (me, dir).smobbed_copy ();
 }
 
-void
-Script::do_post_processing()
+
+
+struct Text_script
 {
-    set_default_index();
-}
+    static bool has_interface (Grob*);
+};
 
-Molecule*
-Script::brew_molecule_p() const
+struct Skript
 {
-    Real dy = paper()->internote();
-    
-    Molecule*out = new Molecule(Atom(symbol()));
-    out->translate(Offset(0,dy * pos));
-    return out;
-}
+    static bool has_interface (Grob*);
+};
+
+ADD_INTERFACE (Text_script,"text-script-interface",
+  "Any text script",
+  "script-priority");
+
+ADD_INTERFACE (Script_interface, "script-interface",
+  "",
+  "script-priority script-stencil");
+