source file of the GNU LilyPond music typesetter
- (c) 1998--2000 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+ (c) 1998--2003 Han-Wen Nienhuys <hanwen@cs.uu.nl>
Jan Nieuwenhuizen <janneke@gnu.org>
*/
+#include <math.h>
+#include "warn.hh"
#include "text-item.hh"
#include "paper-def.hh"
-#include "lookup.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 "lookup.hh"
+#include "virtual-font-metric.hh"
/*
- text: string | (markup sentence)
- markup: markup-symbol | (markup-symbol . parameter)
- sentence: text | sentence text
-
- Properties:
+ TEXT: STRING
+ | (MARKUP? TEXT+)
+ ;
- * Font:
- ---* Type:
- ------* Series: medium, bold
- ------* Shape: upright, italic, slanted
- ------* Family: roman, music, orator, typewriter
+ HEAD: MARKUP-ITEM | (MARKUP-ITEM+)
- ---* Size:
- ------* size: ...,-2,-1,0,1,2,... (style-sheet -> cmrXX, fetaXX)
- ------* points: 11,13,16,20,23,26 (for feta)
- ------* magnification: UNSIGNED
+ MARKUP-ITEM: PROPERTY | ABBREV | FONT-STYLE
+ PROPERTY: (key . value)
+ ABBREV: rows lines roman music bold italic named super sub text
+
+*/
- * Typesetting:
- ---* kern: INT (staff-space)
- ---* align: horizontal/vertical / lines / rows
- */
Molecule
-Text_item::text2molecule (Score_element *me, SCM text, SCM properties)
+Text_item::text2molecule (Grob *me, SCM text, SCM alist_chain)
{
if (gh_string_p (text))
- return string2molecule (me, text, properties);
- else if (gh_list_p (text))
+ return string2molecule (me, text, alist_chain);
+ else if (gh_pair_p (text))
{
- if (!gh_pair_p (gh_car (text)) && gh_string_p (gh_car (text)))
- return string2molecule (me, gh_car (text), properties);
+ /* urg, why not just do this in markup_text2molecule ? */
+ if (gh_string_p (ly_car (text)))
+ return markup_text2molecule (me,
+ gh_append2 (scm_list_n (SCM_EOL,
+ SCM_UNDEFINED),
+ text),
+ alist_chain);
+ /*
+ Allow (faulty) texts that are in an extra list:
+ #'(("foo"))
+ */
+ else if (scm_ilength (text) <= 1)
+ return text2molecule (me, ly_car (text), alist_chain);
else
- return markup_sentence2molecule (me, text, properties);
+ return markup_text2molecule (me, text, alist_chain);
}
return Molecule ();
}
+
+MAKE_SCHEME_CALLBACK(Text_item,text_to_molecule,3);
+SCM
+Text_item::text_to_molecule (SCM grob, SCM props, SCM markup)
+{
+ Grob *me = unsmob_grob (grob);
+
+ return Text_item::text2molecule (me, markup, props).smobbed_copy();
+}
+
+
Molecule
-Text_item::string2molecule (Score_element *me, SCM text, SCM properties)
+Text_item::string2molecule (Grob *me, SCM text, SCM alist_chain)
{
- SCM style = scm_assoc (ly_symbol2scm ("font-style"), properties);
- SCM paper = me->get_elt_property ("style-sheet");
- SCM font_name;
- if (gh_pair_p (style))
- {
- SCM f = me->get_elt_property ("style-to-font-name");
- font_name = gh_call2 (f, paper, gh_cdr (style));
- }
+ SCM style = ly_assoc_chain (ly_symbol2scm ("font-style"),
+ alist_chain);
+ if (gh_pair_p (style) && gh_symbol_p (ly_cdr (style)))
+ alist_chain = Font_interface::add_style (me, ly_cdr (style), alist_chain);
+
+ Font_metric *fm = Font_interface::get_font (me, alist_chain);
+
+ SCM lookup = ly_assoc_chain (ly_symbol2scm ("lookup"), alist_chain);
+
+ Molecule mol;
+ if (gh_pair_p (lookup) && ly_cdr (lookup) ==ly_symbol2scm ("name"))
+ mol = lookup_character (me, fm, text);
else
+ mol = lookup_text (me, fm, text);
+
+ return mol;
+}
+
+Molecule
+Text_item::lookup_character (Grob *, Font_metric*fm, SCM char_name)
+{
+ return fm->find_by_name (ly_scm2string (char_name));
+}
+
+
+
+Molecule
+Text_item::lookup_text (Grob *, Font_metric*fm, SCM text)
+{
+ SCM list = scm_list_n (ly_symbol2scm ("text"), text, SCM_UNDEFINED);
+
+ if (dynamic_cast<Virtual_font_metric*> (fm))
{
- SCM f = me->get_elt_property ("properties-to-font-name");
- font_name = gh_call2 (f, paper, properties);
+ /*
+ ARGH.
+ */
+ programming_error ("Can't use virtual font for text.");
}
- String font_str = "roman";
- if (gh_string_p (font_name))
- font_str = ly_scm2string (font_name);
-
- SCM magnification = me->get_elt_property ("font-magnification");
-
- Font_metric* metric_l = 0;
- if (gh_number_p (magnification))
- metric_l = all_fonts_global_p->find_scaled (font_str,
- gh_scm2int (magnification));
else
- metric_l = all_fonts_global_p->find_font (font_str);
+ list = fontify_atom (fm, list);
+
+ return Molecule (fm->text_dimension (ly_scm2string (text)), list);
+}
- SCM list = gh_list (ly_symbol2scm ("text"), text, SCM_UNDEFINED);
- list = fontify_atom (metric_l, list);
- return Molecule (metric_l->text_dimension (ly_scm2string (text)), list);
-}
+/*
+ TODO:
+
+ DOCME.
+
+ MARKUP_TEXT must be compound (may not be simple string.)
+
+ */
Molecule
-Text_item::markup_sentence2molecule (Score_element *me, SCM markup_sentence,
- SCM properties)
+Text_item::markup_text2molecule (Grob *me, SCM markup_text,
+ SCM alist_chain)
{
- SCM markup = gh_car (markup_sentence);
- SCM sentence = gh_cdr (markup_sentence);
- SCM f = me->get_elt_property ("markup-to-properties");
+ SCM f = me->get_paper ()->lookup_variable (ly_symbol2scm ("markup-to-properties"));
- SCM p = gh_cons (gh_call1 (f, markup), properties);
+ SCM markup = ly_car (markup_text);
+ SCM text = ly_cdr (markup_text);
- 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));
+ /* ARGRGRRGRARGRA
+ */
- Molecule mol;
- while (gh_pair_p (sentence))
+ SCM abbrev = me->get_paper ()->lookup_variable (ly_symbol2scm ("abbreviation-alist"));
+ SCM style = me->get_paper ()->lookup_variable (ly_symbol2scm ("style-alist"));
+
+ SCM p = gh_cons (scm_call_3 (f, abbrev, style, markup), alist_chain);
+
+ Real staff_space = Staff_symbol_referencer::staff_space (me);
+
+ /*
+ Line mode is default.
+ */
+ Axis axis = X_AXIS;
+
+ SCM a = ly_assoc_chain (ly_symbol2scm ("axis"), p);
+ if (gh_pair_p (a) && ly_axis_p (ly_cdr (a)))
+ axis = (Axis)gh_scm2int (ly_cdr (a));
+
+ Real baseline_skip = 0;
+ SCM b = ly_assoc_chain (ly_symbol2scm ("baseline-skip"), p);
+ if (gh_pair_p (b) && gh_number_p (ly_cdr (b)))
+ baseline_skip = gh_scm2double (ly_cdr (b)) * staff_space;
+
+ Real kern[2] = {0,0};
+
+ SCM k = ly_assoc_chain (ly_symbol2scm ("kern"), p);
+ if (gh_pair_p (k) && gh_number_p (ly_cdr (k)))
+ kern[axis] = gh_scm2double (ly_cdr (k)) * staff_space;
+
+ Real raise = 0;
+ SCM r = ly_assoc_chain (ly_symbol2scm ("raise"), p);
+ if (gh_pair_p (r) && gh_number_p (ly_cdr (r)))
+ raise = gh_scm2double (ly_cdr (r)) * staff_space;
+
+
+ Interval extent;
+ bool extent_b = false;
+ SCM e = ly_assoc_chain (ly_symbol2scm ("extent"), p);
+ if (gh_pair_p (e) && ly_number_pair_p (ly_cdr (e)))
{
- Molecule m = text2molecule (me, gh_car (sentence), p);
+ extent = Interval (gh_scm2double (ly_cadr (e)) * staff_space,
+ gh_scm2double (ly_cddr (e)) * staff_space);
+ extent_b = true;
+ }
+
+ Offset o (kern[X_AXIS], raise - kern[Y_AXIS]);
+
+ Molecule mol = Lookup::filledbox (Box (Interval (0,0), Interval (0,0)));
+
+ SCM cp = ly_deep_copy (p);
+ if (raise)
+ {
+ SCM cr = ly_assoc_chain (ly_symbol2scm ("raise"), cp);
+ scm_set_cdr_x (cr, gh_int2scm (0));
+ }
+
+ while (gh_pair_p (text))
+ {
+ Molecule m = text2molecule (me, ly_car (text), cp);
+
if (!m.empty_b ())
- mol.add_at_edge (align, align == X_AXIS ? RIGHT : DOWN, m, 0);
- sentence = gh_cdr (sentence);
+ {
+ m.translate_axis (mol.extent (axis)[axis == X_AXIS ? RIGHT : DOWN]
+ - (axis == Y_AXIS ? baseline_skip : 0),
+ axis);
+ mol.add_molecule (m);
+ }
+ text = ly_cdr (text);
+ }
+
+
+ /* Set extend to markup evented value. */
+ if (extent_b)
+ {
+ Box b = mol.extent_box ();
+ SCM expr = mol.get_expr ();
+
+ b[axis] = extent;
+ mol = Molecule (b, expr);
}
+
+ mol.translate (o);
+
return mol;
}
MAKE_SCHEME_CALLBACK (Text_item, brew_molecule, 1);
SCM
-Text_item::brew_molecule (SCM smob)
+Text_item::brew_molecule (SCM smob)
{
- Score_element *me = unsmob_element (smob);
+ Grob *me = unsmob_grob (smob);
- SCM text = me->get_elt_property ("scm-text");
- Molecule mol;
- if (text == SCM_EOL)
- {
- SCM style = me->get_elt_property ("style");
- String st = gh_string_p (style) ? ly_scm2string (style) : "";
- SCM text = me->get_elt_property ("text");
- String t = gh_string_p (text) ? ly_scm2string (text) : "";
-
- mol = me->paper_l ()->lookup_l (0)->text (st, t, me->paper_l ());
- }
- else
- mol = text2molecule (me, text,
- gh_append2 (me->immutable_property_alist_,
- me->mutable_property_alist_));
+ SCM text = me->get_grob_property ("text");
+
+ SCM properties = Font_interface::font_alist_chain (me);
+ Molecule mol = Text_item::text2molecule (me, text, properties);
- SCM space = me->get_elt_property ("word-space");
+ SCM space = me->get_grob_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));
+ * Staff_symbol_referencer::staff_space (me), 0);
}
- return mol.create_scheme ();
+ return mol.smobbed_copy ();
+}
+
+
+
+ADD_INTERFACE (Text_item,"text-interface",
+ "A scheme markup text, see @ref{Markup functions}.",
+ "text baseline-skip word-space");
+
+
+/*
+ Ugh. Duplicated from Scheme.
+ */
+bool
+new_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")));
}
+SCM
+new_markup_brewer ()
+{
+ static SCM proc ;
+
+ if (!proc)
+ proc = scm_c_eval_string ("brew-new-markup-molecule");
+
+ return proc;
+}
projects / lilypond.git / blobdiff