-/*
- font-metric.cc -- implement Font_metric
-
+/*
+ font-metric.cc -- implement Font_metric
+
source file of the GNU LilyPond music typesetter
-
- (c) 1999--2001 Han-Wen Nienhuys <hanwen@cs.uu.nl>
- Mats Bengtsson <matsb@s3.kth.se> (the ugly TeX parsing in text_dimension)
- */
+ (c) 1999--2005 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+
+ Mats Bengtsson <matsb@s3.kth.se> (the ugly TeX parsing in text_dimension)
+*/
+
+#include "font-metric.hh"
#include <math.h>
-#include <ctype.h>
+#include <cctype>
+#include "dimensions.hh"
+#include "modified-font-metric.hh"
+#include "open-type-font.hh"
+#include "stencil.hh"
+#include "virtual-methods.hh"
#include "warn.hh"
-#include "molecule.hh"
+
#include "ly-smobs.icc"
-#include "font-metric.hh"
-#include "string.hh"
-Box
-Font_metric::text_dimension (String text) const
+Real
+Font_metric::design_size () const
{
- Interval ydims;
- Real w=0.0;
-
- for (int i = 0; i < text.length_i (); i++)
- {
-
- switch (text[i])
- {
- case '\\':
- // accent marks use width of base letter
- if (i +1 < text.length_i ())
- {
- if (text[i+1]=='\'' || text[i+1]=='`' || text[i+1]=='"' ||
- text[i+1]=='^')
- {
- i++;
- break;
- }
- // for string width \\ is a \ and \_ is a _.
- if (text[i+1]=='\\' || text[i+1]=='_')
- {
- break;
- }
- }
-
- for (i++; (i < text.length_i ()) && !isspace (text[i])
- && text[i]!='{' && text[i]!='}'; i++)
- ;
- // ugh.
- i--; // Compensate for the increment in the outer loop!
- break;
- case '{': // Skip '{' and '}'
- case '}':
- break;
-
- default:
- Box b = get_char ((unsigned char)text[i]);
-
- // Ugh, use the width of 'x' for unknown characters
- if (b[X_AXIS].length () == 0)
- b = get_char ((unsigned char)'x');
-
- w += b[X_AXIS].length ();
- ydims.unite (b[Y_AXIS]);
- break;
- }
- }
- if (ydims.empty_b ())
- ydims = Interval (0,0);
-
- return Box (Interval (0, w), ydims);
+ return 1.0 * point_constant;
}
+Stencil
+Font_metric::find_by_name (String s) const
+{
+ s.substitute ('-', 'M');
+ int idx = name_to_index (s);
+ Box b;
+ SCM expr = SCM_EOL;
+ if (idx >= 0)
+ {
+ expr = scm_list_3 (ly_symbol2scm ("named-glyph"),
+ self_scm (),
+ scm_makfrom0str (s.to_str0 ()));
+ b = get_indexed_char (idx);
+ }
-Font_metric::~Font_metric ()
-{
+ Stencil q (b, expr);
+ return q;
}
Font_metric::Font_metric ()
{
description_ = SCM_EOL;
-
+ self_scm_ = SCM_EOL;
smobify_self ();
}
{
}
+Font_metric::~Font_metric ()
+{
+}
+
int
Font_metric::count () const
{
return 0;
}
-Box
-Font_metric::get_char (int)const
+Box
+Font_metric::get_ascii_char (int) const
+{
+ return Box (Interval (0, 0), Interval (0, 0));
+}
+
+Box
+Font_metric::get_indexed_char (int k) const
+{
+ return get_ascii_char (k);
+}
+
+int
+Font_metric::name_to_index (String) const
+{
+ return -1;
+}
+
+Offset
+Font_metric::get_indexed_wxwy (int) const
{
- return Box (Interval (0,0),Interval (0,0));
+ return Offset (0, 0);
}
+void
+Font_metric::derived_mark () const
+{
+}
SCM
Font_metric::mark_smob (SCM s)
{
- Font_metric * m = (Font_metric*) SCM_CELL_WORD_1 (s);
+ Font_metric *m = (Font_metric *) SCM_CELL_WORD_1 (s);
+ m->derived_mark ();
return m->description_;
}
Font_metric::print_smob (SCM s, SCM port, scm_print_state *)
{
Font_metric *m = unsmob_metrics (s);
- scm_puts ("#<Font_metric ", port);
+ scm_puts ("#<", port);
+ scm_puts (classname (m), port);
+ scm_puts (" ", port);
scm_write (m->description_, port);
scm_puts (">", port);
return 1;
}
-
-IMPLEMENT_UNSMOB (Font_metric, metrics);
IMPLEMENT_SMOBS (Font_metric);
IMPLEMENT_DEFAULT_EQUAL_P (Font_metric);
-IMPLEMENT_TYPE_P (Font_metric, "font-metric?");
+IMPLEMENT_TYPE_P (Font_metric, "ly:font-metric?");
-Molecule
-Font_metric::find_by_name (String) const
+SCM
+Font_metric::font_file_name () const
{
- Molecule m ;
- return m;
+ return scm_car (description_);
}
+String
+Font_metric::font_name () const
+{
+ String s ("unknown");
+ return s;
+}
-SCM
-ly_find_glyph_by_name (SCM font, SCM name)
+#include "afm.hh"
+
+int
+Font_metric::index_to_ascii (int i) const
{
- if (!unsmob_metrics (font) || !gh_string_p (name))
- {
- warning ("ly-find-glyph-by-name: invalid argument.");
- Molecule m;
- return m.smobbed_copy ();
- }
+ return i;
+}
- return unsmob_metrics (font)->find_by_name (ly_scm2string (name)).smobbed_copy ();
+unsigned
+Font_metric::index_to_charcode (int i) const
+{
+ return (unsigned) index_to_ascii (i);
}
+Stencil
+Font_metric::get_ascii_char_stencil (int code) const
+{
+ SCM at = scm_list_3 (ly_symbol2scm ("char"), self_scm (),
+ scm_from_int (code));
+ Box b = get_ascii_char (code);
+ return Stencil (b, at);
+}
-static void
-font_metric_init ()
+Stencil
+Font_metric::get_indexed_char_stencil (int code) const
+{
+ int idx = index_to_ascii (code);
+ SCM at = scm_list_3 (ly_symbol2scm ("char"), self_scm (), scm_from_int (idx));
+ Box b = get_indexed_char (code);
+ return Stencil (b, at);
+}
+
+Offset
+Font_metric::attachment_point (String) const
+{
+ return Offset (0, 0);
+}
+
+SCM
+Font_metric::sub_fonts () const
+{
+ return SCM_EOL;
+}
+
+Stencil
+Font_metric::text_stencil (String str) const
+{
+ SCM lst = scm_list_3 (ly_symbol2scm ("text"),
+ this->self_scm (),
+ scm_makfrom0str (str.to_str0 ()));
+
+ Box b = text_dimension (str);
+ return Stencil (b, lst);
+}
+
+Box
+Font_metric::text_dimension (String) const
{
- scm_c_define_gsubr ("ly-find-glyph-by-name", 2 , 0, 0,
- (Scheme_function_unknown) ly_find_glyph_by_name);
+ return Box (Interval (0, 0), Interval (0, 0));
}
-ADD_SCM_INIT_FUNC (font_metric_init, font_metric_init);