source file of the GNU LilyPond music typesetter
- (c) 1998--2000 Han-Wen Nienhuys <hanwen@cs.uu.nl>
-
+ (c) 1998--2004 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+ Jan Nieuwenhuizen <janneke@gnu.org>
*/
+#include <math.h>
+#include "warn.hh"
+#include "grob.hh"
#include "text-item.hh"
-#include "debug.hh"
-#include "molecule.hh"
+#include "font-interface.hh"
+#include "virtual-font-metric.hh"
#include "paper-def.hh"
-#include "lookup.hh"
-#include "staff-symbol-referencer.hh"
-Text_item::Text_item (SCM s)
- : Item (s)
+MAKE_SCHEME_CALLBACK(Text_item,interpret_markup,3);
+SCM
+Text_item::interpret_markup (SCM paper, SCM props, SCM markup)
{
+ if (gh_string_p (markup))
+ {
+ 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);
-MAKE_SCHEME_SCORE_ELEMENT_CALLBACKS(Text_item)
+ Box b = fm->text_dimension (ly_scm2string (markup));
+ return Molecule (b, list).smobbed_copy();
+ }
+ else if (gh_pair_p (markup))
+ {
+ 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;
+ }
+}
-Molecule
-Text_item::do_brew_molecule () const
+MAKE_SCHEME_CALLBACK(Text_item,brew_molecule,1);
+SCM
+Text_item::brew_molecule (SCM grob)
{
- SCM style = get_elt_property ("style");
- String st = gh_string_p (style) ? ly_scm2string (style) : "";
- SCM txt = get_elt_property ("text");
- String t = gh_string_p (txt) ? ly_scm2string (txt) : "";
+ Grob * me = unsmob_grob (grob);
+
+ 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);
+}
- Molecule mol = paper_l ()->lookup_l(0)->text (st, t, paper_l ());
- SCM s = get_elt_property ("word-space");
- if (gh_number_p (s))
- {
- Molecule m;
- m.set_empty (false);
- mol.add_at_edge (X_AXIS, RIGHT, m, gh_scm2double (s)*
- staff_symbol_referencer (this).staff_space ());
- }
- return mol;
+/*
+ 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");
+
+
+