source file of the GNU LilyPond music typesetter
- (c) 1998--2001 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 "debug.hh"
+#include "warn.hh"
#include "text-item.hh"
#include "paper-def.hh"
#include "font-interface.hh"
#include "main.hh"
#include "all-font-metrics.hh"
#include "afm.hh"
-
+#include "lookup.hh"
+#include "virtual-font-metric.hh"
/*
/* urg, why not just do this in markup_text2molecule ? */
if (gh_string_p (ly_car (text)))
return markup_text2molecule (me,
- gh_append2 (scm_listify (SCM_EOL,
+ gh_append2 (scm_list_n (SCM_EOL,
SCM_UNDEFINED),
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 (Grob *me, SCM text, SCM alist_chain)
{
}
+
Molecule
-Text_item::lookup_text (Grob *me, Font_metric*fm, SCM text)
+Text_item::lookup_text (Grob *, Font_metric*fm, SCM text)
{
-#if 0
- /*
- Fixme; should be done differently, move to font-interface?
-
- differently -- how/why?
- */
+ SCM list = scm_list_n (ly_symbol2scm ("text"), text, SCM_UNDEFINED);
- SCM magnification = me->get_grob_property ("font-magnification");
-
- Font_metric* metric = 0;
- if (gh_number_p (magnification))
+ if (dynamic_cast<Virtual_font_metric*> (fm))
{
-
- Real realmag = pow (1.2, gh_scm2int (magnification));
- metric = all_fonts_global_p->find_scaled (ly_scm2string (font_name), realmag);
-
- assert (false);
+ /*
+ ARGH.
+ */
+ programming_error ("Can't use virtual font for text.");
}
-#else
- SCM magnification = me->get_grob_property ("font-magnification");
-
- if (gh_number_p (magnification) && gh_scm2double (magnification) > 1)
- programming_error ("font-magnification disabled");
-#endif
-
-
- SCM list = scm_listify (ly_symbol2scm ("text"), text, SCM_UNDEFINED);
- list = fontify_atom (fm, list);
+ 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 alist_chain)
{
- SCM sheet = me->paper_l ()->style_sheet_;
- SCM f = ly_cdr (scm_assoc (ly_symbol2scm ("markup-to-properties"), sheet));
+ SCM f = me->get_paper ()->lookup_variable (ly_symbol2scm ("markup-to-properties"));
SCM markup = ly_car (markup_text);
SCM text = ly_cdr (markup_text);
- SCM p = gh_cons (gh_call2 (f, sheet, markup), alist_chain);
+ /* 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);
Axis axis = X_AXIS;
SCM a = ly_assoc_chain (ly_symbol2scm ("axis"), p);
- if (gh_pair_p (a) && isaxis_b (ly_cdr (a)))
+ if (gh_pair_p (a) && ly_axis_p (ly_cdr (a)))
axis = (Axis)gh_scm2int (ly_cdr (a));
Real baseline_skip = 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 (gh_cadr (e)) * staff_space,
- gh_scm2double (gh_cddr (e)) * staff_space);
+ extent = Interval (gh_scm2double (ly_cadr (e)) * staff_space,
+ gh_scm2double (ly_cddr (e)) * staff_space);
extent_b = true;
}
- Offset o (0, (axis == Y_AXIS ? - kern[axis] : 0));
+ Offset o (kern[X_AXIS], raise - kern[Y_AXIS]);
+
+ Molecule mol = Lookup::filledbox (Box (Interval (0,0), Interval (0,0)));
- Molecule mol;
+ 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), p);
-
- /*
- TODO: look at padding?
-
- Look ahead here for kern and raise.
-
- (cols "foo" ((raise . 1) "bar"))
- (cols "foo" ((bold (raise . 1)) "bar"))
-
- When constructing the molecule for bar, all normal extra
- properties found, such as bold, are used for the construction
- of bar's molecule. But for kern or raise, it seems that we're
- too late then, translating bar's molecule has no effect (or
- maybe the effect of translating gets nullified when bar's
- molecule is `added_to_edge' of the molecule for foo?)
-
- So, while constructing foo's molecule, we look ahead for the
- raise of bar. The HEAD of the description of bar may be a
- single property, or a list, so we must check that too.
- */
-
- SCM next_p = SCM_EOL;
- if (gh_pair_p (ly_car (text)))
- next_p = scm_listify (gh_call2 (f, sheet, gh_caar (text)), SCM_UNDEFINED);
- SCM next_k = ly_assoc_chain (ly_symbol2scm ("kern"), next_p);
- Real next_kern = kern[axis];
- if (gh_pair_p (next_k) && gh_number_p (ly_cdr (next_k)))
- next_kern = gh_scm2double (ly_cdr (next_k)) * staff_space;
-
- SCM next_r = ly_assoc_chain (ly_symbol2scm ("raise"), next_p);
- Real next_raise = 0;
- if (gh_pair_p (next_r) && gh_number_p (ly_cdr (next_r)))
- next_raise = gh_scm2double (ly_cdr (next_r)) * staff_space;
-
- o[Y_AXIS] = next_raise;
+ Molecule m = text2molecule (me, ly_car (text), cp);
if (!m.empty_b ())
{
- m.translate (o);
- if (mol.empty_b ())
- mol = m;
- else
- {
- if (axis == Y_AXIS && baseline_skip)
- next_kern += baseline_skip - m.extent (Y_AXIS)[UP];
- mol.add_at_edge (axis, axis == X_AXIS ? RIGHT : DOWN, m, next_kern);
- }
+ 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)
{
-#if 0
- /* Hmm, we're not allowed to change a Molecule's extent? */
- mol.dim_[axis] = extent;
- Molecule::ly_set_molecule_extent_x (mol.self_scm (), gh_int2scm (axis),
- ly_cdr (e));
-#else
- // burp: unpredictable names, these...
Box b = mol.extent_box ();
SCM expr = mol.get_expr ();
b[axis] = extent;
mol = Molecule (b, expr);
-#endif
- }
+ }
+
+ mol.translate (o);
+
return mol;
}
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.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;
+}