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 "debug.hh"
+#include "warn.hh"
+#include "grob.hh"
#include "text-item.hh"
+#include "font-interface.hh"
+#include "virtual-font-metric.hh"
#include "paper-def.hh"
-#include "lookup.hh"
-#include "staff-symbol-referencer.hh"
-#include "staff-symbol-referencer.hh"
-#include "main.hh"
-#include "all-font-metrics.hh"
-#include "afm.hh"
-
-/*
- TEXT : STRING | (MARKUP SENTENCE)
- MARKUP: PROPERTY | ABBREV
- SENTENCE: TEXT | SENTENCE TEXT
- PROPERTY: (key . value)
- ABBREV: rows lines roman music bold italic named super sub text, or any font-style
- */
-Molecule
-Text_item::text2molecule (Score_element *me, SCM text, SCM properties)
+MAKE_SCHEME_CALLBACK(Text_item,interpret_markup,3);
+SCM
+Text_item::interpret_markup (SCM paper, SCM props, SCM markup)
{
- if (gh_string_p (text))
- return string2molecule (me, text, properties);
- else if (gh_list_p (text))
+ if (gh_string_p (markup))
{
- if (!gh_pair_p (gh_car (text)) && gh_string_p (gh_car (text)))
- return string2molecule (me, gh_car (text), properties);
+ 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
- return markup_sentence2molecule (me, text, properties);
- }
- return Molecule ();
-}
-
-static
-SCM
-get_elt_property (Score_element *me, char const *name)
-{
- SCM s = me->get_elt_property (name);
- if (s == SCM_EOL)
- error (_f ("No `%s' defined for %s", name, me->name ()));
- return s;
-}
+ list = fontify_atom (fm, list);
-Molecule
-Text_item::string2molecule (Score_element *me, SCM text, SCM properties)
-{
- SCM style = scm_assoc (ly_symbol2scm ("font-style"), properties);
- SCM paper = me->get_elt_property ("style-sheet");
- if (paper == SCM_EOL)
- paper = scm_string_to_symbol (me->paper_l ()->get_scmvar ("style_sheet"));
-
- SCM font_name;
- if (gh_pair_p (style))
- {
- SCM f = get_elt_property (me, "style-to-font-name");
- font_name = gh_call2 (f, paper, gh_cdr (style));
+ Box b = fm->text_dimension (ly_scm2string (markup));
+ return Molecule (b, list).smobbed_copy();
}
- else
+ else if (gh_pair_p (markup))
{
- SCM f = get_elt_property (me, "properties-to-font-name");
- font_name = gh_call2 (f, paper, properties);
+ 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);
}
-
- // should move fallback to scm
- if (!gh_string_p (font_name))
- font_name = ly_str02scm ("cmr10");
-
- SCM lookup = scm_assoc (ly_symbol2scm ("lookup"), properties);
-
- Molecule mol;
- if (gh_pair_p (lookup) && ly_symbol2string (gh_cdr (lookup)) == "name")
- mol = lookup_character (me, font_name, text);
else
- mol = lookup_text (me, font_name, text);
-
- return mol;
-}
-
-/*
- caching / use some form of Lookup without 'paper'?
-*/
-Molecule
-Text_item::lookup_character (Score_element *me, SCM font_name, SCM char_name)
-{
- Adobe_font_metric *afm = all_fonts_global_p->find_afm (ly_scm2string (font_name));
-
- if (!afm)
{
- warning (_f ("can't find font: `%s'", ly_scm2string (font_name)));
- warning (_f ("(search path: `%s')", global_path.str ().ch_C()));
- error (_ ("Aborting"));
+ return SCM_EOL;
}
-
- AFM_CharMetricInfo const *metric =
- afm->find_char_metric (ly_scm2string (char_name), true);
-
- if (!metric)
- {
- Molecule m;
- m.set_empty (false);
- return m;
- }
-
- SCM list = gh_list (ly_symbol2scm ("char"),
- gh_int2scm (metric->code),
- SCM_UNDEFINED);
-
- list = fontify_atom (afm, list);
- return Molecule (afm_bbox_to_box (metric->charBBox), list);
}
-Molecule
-Text_item::lookup_text (Score_element *me, SCM font_name, SCM text)
+MAKE_SCHEME_CALLBACK(Text_item,brew_molecule,1);
+SCM
+Text_item::brew_molecule (SCM grob)
{
- SCM magnification = me->get_elt_property ("font-magnification");
- Font_metric* metric = 0;
- if (gh_number_p (magnification))
- metric = all_fonts_global_p->find_scaled (ly_scm2string (font_name),
- gh_scm2int (magnification));
- else
- metric = all_fonts_global_p->find_font (ly_scm2string (font_name));
-
- SCM list = gh_list (ly_symbol2scm ("text"), text, SCM_UNDEFINED);
- list = fontify_atom (metric, list);
+ Grob * me = unsmob_grob (grob);
- return Molecule (metric->text_dimension (ly_scm2string (text)), list);
+ 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
-Text_item::markup_sentence2molecule (Score_element *me, SCM markup_sentence,
- SCM properties)
-{
- SCM markup = gh_car (markup_sentence);
- SCM sentence = gh_cdr (markup_sentence);
- SCM f = get_elt_property (me, "markup-to-properties");
- SCM p = gh_append2 (gh_call1 (f, markup), properties);
-
- Axis align = X_AXIS;
- SCM a = scm_assoc (ly_symbol2scm ("align"), p);
- if (gh_pair_p (a) && gh_number_p (gh_cdr (a)))
- align = (Axis)gh_scm2int (gh_cdr (a));
-
- Real staff_space = Staff_symbol_referencer::staff_space (me);
- Real kern = 0;
- SCM k = scm_assoc (ly_symbol2scm ("kern"), p);
- if (gh_pair_p (k) && gh_number_p (gh_cdr (k)))
- kern = gh_scm2double (gh_cdr (k)) * staff_space;
-
- Real raise = 0;
- SCM r = scm_assoc (ly_symbol2scm ("raise"), p);
- if (gh_pair_p (r) && gh_number_p (gh_cdr (r)))
- raise = gh_scm2double (gh_cdr (r)) * staff_space;
-
- Offset o (align == X_AXIS ? kern : 0,
- (align == Y_AXIS ? - kern : 0) + raise);
- Molecule mol;
- while (gh_pair_p (sentence))
- {
- Molecule m = text2molecule (me, gh_car (sentence), p);
- if (!m.empty_b ())
- {
- m.translate (o);
- mol.add_at_edge (align, align == X_AXIS ? RIGHT : DOWN, m, 0);
- }
- sentence = gh_cdr (sentence);
- }
- 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")));
}
-MAKE_SCHEME_CALLBACK (Text_item, brew_molecule, 1);
-SCM
-Text_item::brew_molecule (SCM smob)
-{
- Score_element *me = unsmob_element (smob);
-
- SCM text = me->get_elt_property ("text");
+ADD_INTERFACE (Text_item,"text-interface",
+ "A scheme markup text, see @ref{Markup functions}.",
+ "text baseline-skip word-space");
- SCM properties = gh_append2 (me->immutable_property_alist_,
- me->mutable_property_alist_);
- Molecule mol = Text_item::text2molecule (me, text, properties);
- SCM space = me->get_elt_property ("word-space");
- if (gh_number_p (space))
- {
- Molecule m;
- m.set_empty (false);
- mol.add_at_edge (X_AXIS, RIGHT, m, gh_scm2double (space)
- * Staff_symbol_referencer::staff_space (me));
- }
- return mol.create_scheme ();
-}
projects / lilypond.git / blobdiff