-/*
+/*
text-item.cc -- implement Text_item
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) 1997 Han-Wen Nienhuys <hanwen@stack.nl>
-*/
+#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"
-#include "musical-request.hh"
-#include "paper-def.hh"
-#include "text-item.hh"
-#include "stem.hh"
-#include "molecule.hh"
-#include "lookup.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,
-Text_item::Text_item (General_script_def*tdef_l, Direction d)
+ '(
+ (tag1 . argcount1)
+ (tag2 . argcount2)
+
+ ... etc
+
+ )
+
+ or even entries like
+
+ (tag . (argcount function-to-handle-the-tag ))
+
+ */
+
+Molecule
+Text_item::text2molecule (Score_element *me, SCM text, SCM alist_chain)
{
- dir_ = d;
- fat_b_ = false;
- tdef_p_ = tdef_l->clone();
+ 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 ();
}
-Text_item::~Text_item()
+SCM
+ly_assoc_chain (SCM key, SCM achain)
{
- delete tdef_p_;
+ 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;
}
-
-void
-Text_item::do_pre_processing()
+
+Molecule
+Text_item::string2molecule (Score_element *me, SCM text, SCM alist_chain)
{
- if (!dir_)
- dir_ = DOWN;
+ SCM style = ly_assoc_chain (ly_symbol2scm ("font-style"),
+ alist_chain);
+ if (gh_pair_p (style))
+ style = gh_cdr (style);
+
+ SCM sheet = me->paper_l ()->style_sheet_;
+
+ if (gh_symbol_p (style))
+ {
+ 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 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;
}
-Interval
-Text_item::symbol_height() const
+Molecule
+Text_item::lookup_character (Score_element *, SCM font_name, SCM char_name)
{
- return tdef_p_->get_atom (paper(), dir_).dim_.y ();
-}
+ 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"));
+ }
+ Font_metric * fm = afm;
-Molecule*
-Text_item::brew_molecule_p() const
+ return fm->find_by_name (ly_scm2string (char_name));
+}
+
+
+Molecule
+Text_item::lookup_text (Score_element *me, SCM font_name, SCM text)
{
- Atom a (tdef_p_->get_atom (paper(), dir_));
+ SCM magnification = me->get_elt_property ("font-magnification");
+ Font_metric* metric = 0;
+ if (gh_number_p (magnification))
+ {
+#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);
+ }
+ 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);
+}
+Molecule
+Text_item::markup_sentence2molecule (Score_element *me, SCM markup_sentence,
+ SCM alist_chain)
+{
/*
- if (fat_b_)
- a.sym.dim.x = tdef_p_->width (paper());
- */
- Molecule* mol_p = new Molecule (a);
-
- if (dir_<0) // should do something better anyway.
- mol_p->translate_axis (-mol_p->extent().y ().left , Y_AXIS);
- mol_p->translate_axis (pos_i_ * paper()->internote_f (), Y_AXIS);
+ FIXME
+ */
+ return Molecule ();
+
+ SCM sheet = me->paper_l ()->style_sheet_;
+ SCM f = gh_cdr (scm_assoc (ly_symbol2scm ("markup-abbrev-to-properties-alist"), sheet));
- return mol_p;
+ SCM markup = gh_car (markup_sentence);
+ SCM sentence = gh_cdr (markup_sentence);
+
+ 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;
}
+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");
+
+ 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 ();
+}
-IMPLEMENT_IS_TYPE_B1(Text_item,Item);
projects / lilypond.git / blobdiff