/*
- text-item.cc -- implement Text_item
+ text-item.cc -- implement Text_interface
source file of the GNU LilyPond music typesetter
- (c) 1998--2003 Han-Wen Nienhuys <hanwen@cs.uu.nl>
- Jan Nieuwenhuizen <janneke@gnu.org>
- */
+ (c) 1998--2004 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+ Jan Nieuwenhuizen <janneke@gnu.org>
+*/
+
+#include "text-item.hh"
+
#include <math.h>
#include "warn.hh"
#include "grob.hh"
-#include "text-item.hh"
#include "font-interface.hh"
#include "virtual-font-metric.hh"
-#include "paper-def.hh"
+#include "output-def.hh"
+#include "modified-font-metric.hh"
+#include "ly-module.hh"
-MAKE_SCHEME_CALLBACK(Text_item,interpret_markup,3);
+MAKE_SCHEME_CALLBACK (Text_interface, interpret_string, 4)
SCM
-Text_item::interpret_markup (SCM paper, SCM props, SCM markup)
+Text_interface::interpret_string (SCM layout_smob,
+ SCM props, SCM input_encoding, SCM markup)
{
- if (gh_string_p (markup))
+ 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))
{
- Paper_def *pap = unsmob_paper (paper);
- Font_metric *fm = select_font (pap, props);
+ 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 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);
+ Font_metric *fm = select_encoded_font (layout, props, input_encoding);
- Box b = fm->text_dimension (ly_scm2string (markup));
- return Molecule (b, list).smobbed_copy();
+ 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 ());
}
- else if (gh_pair_p (markup))
+
+ return Stencil (b, lst).smobbed_copy ();
+}
+
+
+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))
{
- SCM func = gh_car (markup);
- SCM args = gh_cdr (markup);
+ 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, paper, props, args);
+ return scm_apply_2 (func, layout_smob, props, args);
}
else
{
- return SCM_EOL;
+ programming_error ("Is not a markup: ");
+ scm_display (markup, scm_current_error_port());
+ assert (false);
+ Box b;
+ b[X_AXIS].set_empty();
+ b[Y_AXIS].set_empty();
+
+ Stencil s(b, SCM_EOL);
+ return s.smobbed_copy();
}
}
-MAKE_SCHEME_CALLBACK(Text_item,brew_molecule,1);
+MAKE_SCHEME_CALLBACK (Text_interface,print,1);
SCM
-Text_item::brew_molecule (SCM grob)
+Text_interface::print (SCM grob)
{
- Grob * me = unsmob_grob (grob);
+ 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);
+ 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.
- */
+/* Ugh. Duplicated from Scheme. */
bool
-Text_item::markup_p (SCM x)
+Text_interface::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")));
+ 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_item,"text-interface",
- "A scheme markup text, see @ref{Markup functions}.",
- "text baseline-skip word-space");
+ADD_INTERFACE (Text_interface,"text-interface",
+ "A scheme markup text, see @usermanref{Text-markup}.",
+ "text baseline-skip word-space");