-/*
- font-metric.cc -- implement Font_metric
-
+/*
+ font-metric.cc -- implement Font_metric
+
source file of the GNU LilyPond music typesetter
-
- (c) 1999--2004 Han-Wen Nienhuys <hanwen@cs.uu.nl>
- Mats Bengtsson <matsb@s3.kth.se> (the ugly TeX parsing in text_dimension)
- */
+ (c) 1999--2008 Han-Wen Nienhuys <hanwen@xs4all.nl>
-#include <math.h>
-#include <ctype.h>
+ Mats Bengtsson <matsb@s3.kth.se> (the ugly TeX parsing in text_dimension)
+*/
-#include "virtual-methods.hh"
-#include "warn.hh"
+#include "font-metric.hh"
+
+#include <cmath>
+#include <cctype>
+using namespace std;
+
+#include "dimensions.hh"
+#include "modified-font-metric.hh"
+#include "open-type-font.hh"
#include "stencil.hh"
+#include "warn.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++)
- {
-
- switch (text[i])
- {
- case '\\':
- // accent marks use width of base letter
- if (i +1 < text.length ())
- {
- 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 ()) && !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_ascii_char ((unsigned char)text[i]);
-
- // Ugh, use the width of 'x' for unknown characters
- if (b[X_AXIS].length () == 0)
- b = get_ascii_char ((unsigned char)'x');
-
- w += b[X_AXIS].length ();
- ydims.unite (b[Y_AXIS]);
- break;
- }
- }
- if (ydims.is_empty ())
- ydims = Interval (0,0);
-
- return Box (Interval (0, w), ydims);
+ return 1.0 * point_constant;
}
+Stencil
+Font_metric::find_by_name (string s) const
+{
+ replace_all (&s, '-', '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 (),
+ ly_string2scm (s));
+ b = get_indexed_char (idx);
+ }
-Font_metric::~Font_metric ()
-{
+ Stencil q (b, expr);
+ return q;
}
Font_metric::Font_metric ()
{
}
-int
+Font_metric::~Font_metric ()
+{
+}
+
+size_t
Font_metric::count () const
{
return 0;
}
-Box
-Font_metric::get_ascii_char (int) const
+Box
+Font_metric::get_ascii_char (size_t) const
{
- return Box (Interval (0,0),Interval (0,0));
+ return Box (Interval (0, 0), Interval (0, 0));
}
-Box
-Font_metric::get_indexed_char (int k) const
+Box
+Font_metric::get_indexed_char (size_t k) const
{
- return get_ascii_char(k);
+ return get_ascii_char (k);
}
-
-int
-Font_metric::name_to_index (String) const
+size_t
+Font_metric::name_to_index (string) const
{
- return -1;
+ return (size_t)-1;
}
Offset
-Font_metric::get_indexed_wxwy (int )const
+Font_metric::get_indexed_wxwy (size_t) const
{
- return Offset (0,0);
+ return Offset (0, 0);
}
void
-Font_metric::derived_mark ()const
+Font_metric::derived_mark () const
{
-
}
SCM
Font_metric::mark_smob (SCM s)
{
- Font_metric * m = (Font_metric*) SCM_CELL_WORD_1 (s);
-
- m->derived_mark();
+ Font_metric *m = (Font_metric *) SCM_CELL_WORD_1 (s);
+ m->derived_mark ();
return m->description_;
}
{
Font_metric *m = unsmob_metrics (s);
scm_puts ("#<", port);
- scm_puts (classname (m), port);
+ scm_puts (m->class_name (), port);
scm_puts (" ", port);
scm_write (m->description_, port);
scm_puts (">", port);
return 1;
}
-
-
IMPLEMENT_SMOBS (Font_metric);
IMPLEMENT_DEFAULT_EQUAL_P (Font_metric);
IMPLEMENT_TYPE_P (Font_metric, "ly:font-metric?");
-Stencil
-Font_metric::find_by_name (String) const
+SCM
+Font_metric::font_file_name () const
{
- Stencil m ;
- return m;
+ return scm_car (description_);
}
-LY_DEFINE(ly_find_glyph_by_name, "ly:find-glyph-by-name", 2 , 0, 0,
- (SCM font, SCM name),
- "This function retrieves a Stencil for the glyph named @var{name} in "
-"@var{font}. The font must be available as an AFM file. If the glyph "
-"is not found, #f is returned. ")
+string
+Font_metric::font_name () const
{
- Font_metric *fm = unsmob_metrics (font);
- SCM_ASSERT_TYPE(fm, font, SCM_ARG1, __FUNCTION__, "font-metric");
- SCM_ASSERT_TYPE(gh_string_p (name), name, SCM_ARG2, __FUNCTION__, "string");
-
- Stencil m = fm->find_by_name (ly_scm2string (name));
-
- /*
- TODO: make optional argument for default if not found.
-
- */
- return m.smobbed_copy ();
+ string s ("unknown");
+ return s;
}
-LY_DEFINE(ly_get_glyph, "ly:get-glyph", 2 , 0, 0,
- (SCM font, SCM index),
- "This function retrieves a Stencil for the glyph numbered @var{index} in "
-"@var{font}. ")
+size_t
+Font_metric::index_to_ascii (size_t i) const
{
- Font_metric *fm = unsmob_metrics (font);
- SCM_ASSERT_TYPE(fm, font, SCM_ARG1, __FUNCTION__, "font-metric");
- SCM_ASSERT_TYPE(gh_number_p (index), index, SCM_ARG2, __FUNCTION__, "number");
-
- return fm->get_ascii_char_stencil (gh_scm2int (index)).smobbed_copy ();
+ return i;
}
-LY_DEFINE(ly_text_dimension,"ly:text-dimension", 2 , 0, 0,
- (SCM font, SCM text),
- "Given the font metric in @var{font} and the string @var{text}, compute "
-"the extents of that text in that font. The return value is a pair of "
-"number-pairs.")
+size_t
+Font_metric::index_to_charcode (size_t i) const
{
- Box b;
- Font_metric *fm = unsmob_metrics (font);
- SCM_ASSERT_TYPE(fm, font, SCM_ARG1, __FUNCTION__, "font-metric");
- SCM_ASSERT_TYPE(gh_string_p (text), text, SCM_ARG2, __FUNCTION__, "string");
-
- b = fm->text_dimension (ly_scm2string (text));
-
- return gh_cons (ly_interval2scm (b[X_AXIS]), ly_interval2scm(b[Y_AXIS]));
+ return index_to_ascii (i);
}
Stencil
-Font_metric::get_ascii_char_stencil (int code) const
+Font_metric::get_ascii_char_stencil (size_t code) const
{
- SCM at = scm_list_n (ly_symbol2scm ("char"), gh_int2scm (code),
- SCM_UNDEFINED);
- at = fontify_atom (this, at);
+ SCM at = scm_list_3 (ly_symbol2scm ("char"), self_scm (),
+ scm_from_unsigned (code));
Box b = get_ascii_char (code);
return Stencil (b, at);
}
Stencil
-Font_metric::get_indexed_char_stencil (int code) const
+Font_metric::get_indexed_char_stencil (size_t code) const
{
- SCM at = scm_list_n (ly_symbol2scm ("char"), gh_int2scm (code),
- SCM_UNDEFINED);
- at = fontify_atom (this, at);
+ size_t idx = index_to_ascii (code);
+ SCM at = scm_list_3 (ly_symbol2scm ("char"), self_scm (),
+ scm_from_unsigned (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::word_stencil (string str) const
+{
+ return text_stencil (str);
+}
+
+Stencil
+Font_metric::text_stencil (string str) const
+{
+ (void) str;
+ programming_error("Cannot get a text stencil from this font");
+ return Stencil (Box (), SCM_EOL);
+}
+
+Box
+Font_metric::text_dimension (string) const
+{
+ return Box (Interval (0, 0), Interval (0, 0));
+}
+
projects / lilypond.git / blobdiff