/*
- text-item.cc -- implement Item
+ text-item.cc -- implement Text_interface
source file of the GNU LilyPond music typesetter
- (c) 1998--2000 Han-Wen Nienhuys <hanwen@cs.uu.nl>
-
- */
-
-#include "debug.hh"
-#include "molecule.hh"
-#include "paper-def.hh"
-#include "lookup.hh"
-#include "staff-symbol-referencer.hh"
+ (c) 1998--2004 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+ Jan Nieuwenhuizen <janneke@gnu.org>
+*/
-struct Text_item
-{
- static SCM scheme_molecule (SCM);
-};
+#include "text-item.hh"
+#include <cmath>
-MAKE_SCHEME_SCORE_ELEMENT_NON_DEFAULT_CALLBACKS(Text_item)
+#include "warn.hh"
+#include "grob.hh"
+#include "font-interface.hh"
+#include "virtual-font-metric.hh"
+#include "output-def.hh"
+#include "modified-font-metric.hh"
+#include "ly-module.hh"
-SCM
-Text_item::scheme_molecule (SCM sm)
+MAKE_SCHEME_CALLBACK (Text_interface, interpret_string, 4)
+SCM
+Text_interface::interpret_string (SCM layout_smob,
+ SCM props, SCM input_encoding, SCM markup)
{
- Score_element * s = unsmob_element (sm);
+ Output_def *layout = unsmob_output_def (layout_smob);
+
+ SCM_ASSERT_TYPE (layout, layout_smob, SCM_ARG1,
+ __FUNCTION__, "Layout definition");
+ SCM_ASSERT_TYPE (scm_is_string (markup), markup, SCM_ARG3,
+ __FUNCTION__, "string");
+ SCM_ASSERT_TYPE (input_encoding == SCM_EOL || scm_is_symbol (input_encoding),
+ input_encoding, SCM_ARG2, __FUNCTION__, "symbol");
+
+ String str = ly_scm2string (markup);
+ if (!scm_is_symbol (input_encoding))
+ {
+ SCM enc = layout->lookup_variable (ly_symbol2scm ("inputencoding"));
+ if (scm_is_string (enc))
+ input_encoding = scm_string_to_symbol (enc);
+ else if (scm_is_symbol (enc))
+ input_encoding = enc;
+ }
- SCM style = s->get_elt_property ("style");
- String st = gh_string_p (style) ? ly_scm2string (style) : "";
- SCM txt = s-> get_elt_property ("text");
- String t = gh_string_p (txt) ? ly_scm2string (txt) : "";
+ Font_metric *fm = select_encoded_font (layout, props, input_encoding);
+
+ SCM lst = SCM_EOL;
+ Box b;
+ if (Modified_font_metric* mf = dynamic_cast<Modified_font_metric*> (fm))
+ {
+ lst = scm_list_3 (ly_symbol2scm ("text"),
+ mf->self_scm (),
+ markup);
+
+ b = mf->text_dimension (str);
+ }
+ else
+ {
+ /* ARGH. */
+ programming_error ("Must have Modified_font_metric for text.");
+ scm_display (fm->description_, scm_current_error_port ());
+ }
+
+ return Stencil (b, lst).smobbed_copy ();
+}
- Molecule mol = s->paper_l ()->lookup_l(0)->text (st, t, s->paper_l ());
- SCM space = s->get_elt_property ("word-space");
- if (gh_number_p (space))
+MAKE_SCHEME_CALLBACK (Text_interface, interpret_markup, 3)
+SCM
+Text_interface::interpret_markup (SCM layout_smob, SCM props, SCM markup)
+{
+ if (scm_is_string (markup))
+ return interpret_string (layout_smob, props, SCM_EOL, markup);
+ else if (scm_is_pair (markup))
{
- Molecule m;
- m.set_empty (false);
- mol.add_at_edge (X_AXIS, RIGHT, m, gh_scm2double (space)*
- staff_symbol_referencer (s).staff_space ());
+ SCM func = scm_car (markup);
+ SCM args = scm_cdr (markup);
+ if (!markup_p (markup))
+ programming_error ("Markup head has no markup signature.");
+
+ return scm_apply_2 (func, layout_smob, props, args);
}
- return mol.create_scheme ();
+ return SCM_EOL;
+}
+
+MAKE_SCHEME_CALLBACK (Text_interface,print,1);
+SCM
+Text_interface::print (SCM grob)
+{
+ Grob *me = unsmob_grob (grob);
+
+ SCM t = me->get_property ("text");
+ SCM chain = Font_interface::text_font_alist_chain (me);
+ return interpret_markup (me->get_layout ()->self_scm (), chain, t);
}
+/* Ugh. Duplicated from Scheme. */
+bool
+Text_interface::markup_p (SCM x)
+{
+ return (scm_is_string (x)
+ || (scm_is_pair (x)
+ && SCM_BOOL_F
+ != scm_object_property (scm_car (x),
+ ly_symbol2scm ("markup-signature"))));
+}
+
+ADD_INTERFACE (Text_interface,"text-interface",
+ "A scheme markup text, see @usermanref{Text-markup}.",
+ "text baseline-skip word-space");
+
+
+