/*
- text-item.cc -- implement Text_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>
- Jan Nieuwenhuizen <janneke@gnu.org>
- */
-#include <math.h>
+ (c) 1998--2004 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+ Jan Nieuwenhuizen <janneke@gnu.org>
+*/
-#include "debug.hh"
#include "text-item.hh"
-#include "paper-def.hh"
-#include "font-interface.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
- */
-
-/*
- TODO:
-
- rewrite routines and syntax to be like
-
- TEXT: STRING
- | (head-expression* TEXT*)
- ;
-
- head-expression is a list, containing a tag and a variable number of
- arguments. If necessary, the number of arguments can be stored in a alist,
- '(
- (tag1 . argcount1)
- (tag2 . argcount2)
+#include <cmath>
- ... etc
-
- )
-
- or even entries like
-
- (tag . (argcount function-to-handle-the-tag ))
-
- */
-
-Molecule
-Text_item::text2molecule (Score_element *me, SCM text, SCM alist_chain)
-{
- if (gh_string_p (text))
- return string2molecule (me, text, alist_chain);
- else if (gh_list_p (text))
- {
- if (!gh_pair_p (gh_car (text)) && gh_string_p (gh_car (text)))
- return string2molecule (me, gh_car (text), alist_chain);
- else
- return markup_sentence2molecule (me, text, alist_chain);
- }
- return Molecule ();
-}
+#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"
+MAKE_SCHEME_CALLBACK (Text_interface, interpret_string, 4)
SCM
-ly_assoc_chain (SCM key, SCM achain)
+Text_interface::interpret_string (SCM layout_smob,
+ SCM props, SCM input_encoding, SCM markup)
{
- if (gh_pair_p (achain))
- {
- SCM handle = scm_assoc (key, gh_car (achain));
- if (gh_pair_p (handle))
- return handle;
- else
- return ly_assoc_chain (key, gh_cdr (achain));
- }
- else
- return SCM_BOOL_F;
-}
-
-Molecule
-Text_item::string2molecule (Score_element *me, SCM text, SCM alist_chain)
-{
- SCM style = ly_assoc_chain (ly_symbol2scm ("font-style"),
- alist_chain);
- if (gh_pair_p (style))
- style = gh_cdr (style);
+ Output_def *layout = unsmob_output_def (layout_smob);
- SCM sheet = me->paper_l ()->style_sheet_;
+ 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");
- if (gh_symbol_p (style))
+ String str = ly_scm2string (markup);
+ if (!scm_is_symbol (input_encoding))
{
- SCM style_alist = gh_cdr (scm_assoc (ly_symbol2scm ("style-alist"), sheet));
- SCM entry = scm_assoc (style, style_alist);
- entry = gh_pair_p (entry) ? gh_cdr (entry) : SCM_EOL;
- alist_chain = gh_cons (entry, alist_chain);
+ 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 fonts = gh_cdr (scm_assoc (ly_symbol2scm ("fonts"), sheet));
- SCM proc = gh_cdr (scm_assoc (ly_symbol2scm ("properties-to-font"), sheet));
- SCM font_name = gh_call2 (proc, fonts, alist_chain);
-
-#if 0
- 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
-#endif
- Molecule mol = lookup_text (me, font_name, text);
- return mol;
-}
+ Font_metric *fm = select_encoded_font (layout, props, input_encoding);
-Molecule
-Text_item::lookup_character (Score_element *, SCM font_name, SCM char_name)
-{
- Adobe_font_metric *afm = all_fonts_global_p->find_afm (ly_scm2string (font_name));
-
- if (!afm)
+ SCM lst = SCM_EOL;
+ Box b;
+ if (Modified_font_metric* mf = dynamic_cast<Modified_font_metric*> (fm))
{
- warning (_f ("can't find font: `%s'", ly_scm2string (font_name)));
- warning (_f ("(search path: `%s')", global_path.str ().ch_C()));
- error (_ ("Aborting"));
+ lst = scm_list_3 (ly_symbol2scm ("text"),
+ mf->self_scm (),
+ markup);
+
+ b = mf->text_dimension (str);
}
- Font_metric * fm = afm;
-
- return fm->find_by_name (ly_scm2string (char_name));
+ 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
-Text_item::lookup_text (Score_element *me, SCM font_name, SCM text)
+MAKE_SCHEME_CALLBACK (Text_interface, interpret_markup, 3)
+SCM
+Text_interface::interpret_markup (SCM layout_smob, SCM props, SCM markup)
{
- SCM magnification = me->get_elt_property ("font-magnification");
- Font_metric* metric = 0;
- if (gh_number_p (magnification))
+ if (scm_is_string (markup))
+ return interpret_string (layout_smob, props, SCM_EOL, markup);
+ else if (scm_is_pair (markup))
{
-#if 0
- Real realmag = pow (1.2, gh_scm2int (magnification));
- metric = all_fonts_global_p->find_scaled (ly_scm2string (font_name), realmag);
-#endif
- assert (false);
+ 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);
}
- else
- metric = me->paper_l ()->find_font (font_name, 1.0);
-
- SCM list = gh_list (ly_symbol2scm ("text"), text, SCM_UNDEFINED);
- list = fontify_atom (metric, list);
-
- return Molecule (metric->text_dimension (ly_scm2string (text)), list);
+ return SCM_EOL;
}
-Molecule
-Text_item::markup_sentence2molecule (Score_element *me, SCM markup_sentence,
- SCM alist_chain)
+MAKE_SCHEME_CALLBACK (Text_interface,print,1);
+SCM
+Text_interface::print (SCM grob)
{
- /*
- FIXME
- */
- return Molecule ();
-
- SCM sheet = me->paper_l ()->style_sheet_;
- SCM f = gh_cdr (scm_assoc (ly_symbol2scm ("markup-abbrev-to-properties-alist"), sheet));
-
- SCM markup = gh_car (markup_sentence);
- SCM sentence = gh_cdr (markup_sentence);
+ Grob *me = unsmob_grob (grob);
- SCM p = gh_cons (gh_call1 (f, markup), alist_chain);
-
- 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;
+ 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);
}
-MAKE_SCHEME_CALLBACK (Text_item, brew_molecule, 1);
-SCM
-Text_item::brew_molecule (SCM smob)
+/* Ugh. Duplicated from Scheme. */
+bool
+Text_interface::markup_p (SCM x)
{
- Score_element *me = unsmob_element (smob);
-
- SCM text = me->get_elt_property ("text");
+ 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");
- SCM properties = gh_list (me->immutable_property_alist_,
- me->mutable_property_alist_, SCM_UNDEFINED);
- 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