source file of the GNU LilyPond music typesetter
- (c) 1998--2002 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 "warn.hh"
+#include "grob.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 "lookup.hh"
#include "virtual-font-metric.hh"
+#include "output-def.hh"
+#include "scaled-font-metric.hh"
-/*
-
- TEXT: STRING
- | (MARKUP? TEXT+)
- ;
-
- HEAD: MARKUP-ITEM | (MARKUP-ITEM+)
-
- MARKUP-ITEM: PROPERTY | ABBREV | FONT-STYLE
- PROPERTY: (key . value)
- ABBREV: rows lines roman music bold italic named super sub text
-
-*/
-
-Molecule
-Text_item::text2molecule (Grob *me, SCM text, SCM alist_chain)
-{
- if (gh_string_p (text))
- return string2molecule (me, text, alist_chain);
- else if (gh_pair_p (text))
- {
- /* 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_text2molecule (me, text, alist_chain);
- }
- return Molecule ();
-}
-
-Molecule
-Text_item::string2molecule (Grob *me, SCM text, SCM alist_chain)
+MAKE_SCHEME_CALLBACK (Text_item, interpret_string, 4)
+SCM
+Text_item::interpret_string (SCM paper, SCM props, SCM encoding, SCM markup)
{
- 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);
+ Output_def *pap = unsmob_output_def (paper);
- 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);
+ SCM_ASSERT_TYPE(pap, paper, SCM_ARG1, __FUNCTION__, "Paper definition");
+ SCM_ASSERT_TYPE(ly_c_string_p (markup), markup, SCM_ARG3, __FUNCTION__, "string");
+ SCM_ASSERT_TYPE(encoding == SCM_EOL
+ || ly_c_symbol_p (encoding), encoding, SCM_ARG2, __FUNCTION__, "symbol");
- return mol;
-}
-
-Molecule
-Text_item::lookup_character (Grob *, Font_metric*fm, SCM char_name)
-{
- return fm->find_by_name (ly_scm2string (char_name));
-}
-
-
+ String str = ly_scm2string (markup);
+ Font_metric *fm = select_encoded_font (pap, props, encoding);
-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 lst = SCM_EOL;
+ Box b;
+ if (Modified_font_metric* mf = dynamic_cast<Modified_font_metric*> (fm))
{
- /*
- ARGH.
- */
- programming_error ("Can't use virtual font for text.");
+ lst = scm_list_3 (ly_symbol2scm ("text"),
+ mf->self_scm (),
+ markup);
+
+ b = mf->text_dimension (str);
}
else
- list = fontify_atom (fm, list);
-
- return Molecule (fm->text_dimension (ly_scm2string (text)), list);
-}
-
-
-/*
- TODO:
-
- DOCME.
-
-
- MARKUP_TEXT must be compound (may not be simple string.)
-
- */
-Molecule
-Text_item::markup_text2molecule (Grob *me, SCM markup_text,
- SCM alist_chain)
-{
- SCM f = me->get_paper ()->lookup_variable (ly_symbol2scm ("markup-to-properties"));
-
- SCM markup = ly_car (markup_text);
- SCM text = ly_cdr (markup_text);
-
- /* ARGRGRRGRARGRA
- */
-
- 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)))
{
- extent = Interval (gh_scm2double (ly_cadr (e)) * staff_space,
- gh_scm2double (ly_cddr (e)) * staff_space);
- extent_b = true;
+ /* ARGH. */
+ programming_error ("Must have Modified_font_metric for text.");
}
+
+ return Stencil (b, lst).smobbed_copy ();
+}
- 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 ())
- {
- 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)
+MAKE_SCHEME_CALLBACK (Text_item, interpret_markup, 3)
+SCM
+Text_item::interpret_markup (SCM paper, SCM props, SCM markup)
+{
+ if (ly_c_string_p (markup))
+ return interpret_string (paper, props, SCM_EOL, markup);
+ else if (ly_c_pair_p (markup))
{
- Box b = mol.extent_box ();
- SCM expr = mol.get_expr ();
-
- b[axis] = extent;
- mol = Molecule (b, expr);
+ SCM func = ly_car (markup);
+ SCM args = ly_cdr (markup);
+ if (!markup_p (markup))
+ programming_error ("Markup head has no markup signature.");
+
+ return scm_apply_2 (func, paper, props, args);
}
-
- mol.translate (o);
-
- return mol;
+ return SCM_EOL;
}
-MAKE_SCHEME_CALLBACK (Text_item, brew_molecule, 1);
-SCM
-Text_item::brew_molecule (SCM smob)
+MAKE_SCHEME_CALLBACK (Text_item,print,1);
+SCM
+Text_item::print (SCM grob)
{
- Grob *me = unsmob_grob (smob);
+ Grob *me = unsmob_grob (grob);
- SCM text = me->get_grob_property ("text");
+ SCM t = me->get_property ("text");
+ SCM chain = Font_interface::text_font_alist_chain (me);
+ return interpret_markup (me->get_paper ()->self_scm (), chain, t);
+}
- SCM properties = Font_interface::font_alist_chain (me);
- Molecule mol = Text_item::text2molecule (me, text, properties);
- 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));
- }
- return mol.smobbed_copy ();
+/*
+ Ugh. Duplicated from Scheme.
+ */
+bool
+Text_item::markup_p (SCM x)
+{
+ return
+ ly_c_string_p (x) ||
+ (ly_c_pair_p (x)
+ && SCM_BOOL_F != scm_object_property (ly_car (x), ly_symbol2scm ("markup-signature")));
}
+ADD_INTERFACE (Text_item,"text-interface",
+ "A scheme markup text, see @usermanref{Text-markup}.",
+ "text baseline-skip word-space");
+
+
-ADD_INTERFACE (Text_item,"text-interface",
- "A scheme markup text",
- "text align baseline-skip lookup raise kern word-space magnify");
projects / lilypond.git / blobdiff