/*
- font-metric.cc -- implement Font_metric
+ font-metric.cc -- implement Font_metric
source file of the GNU LilyPond music typesetter
#include <math.h>
#include <ctype.h>
+#include "scaled-font-metric.hh"
#include "virtual-methods.hh"
#include "warn.hh"
#include "stencil.hh"
#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;
}
+String
+Font_metric::coding_scheme () const
+{
+ return "FontSpecific";
+}
-
-Font_metric::~Font_metric ()
+Stencil
+Font_metric::find_by_name (String s) const
{
+ int idx = name_to_index (s);
+ Box b;
+
+ SCM expr = SCM_EOL;
+ if (idx >= 0)
+ {
+ expr = scm_list_3 (ly_symbol2scm ("char"),
+ self_scm (),
+ scm_int2num (index_to_ascii (idx)));
+ b = get_indexed_char (idx);
+ }
+
+ Stencil q (b, expr);
+ return q;
}
Font_metric::Font_metric ()
{
}
+
+Font_metric::~Font_metric ()
+{
+}
+
int
Font_metric::count () const
{
Box
Font_metric::get_ascii_char (int) const
{
- return Box (Interval (0,0),Interval (0,0));
+ return Box (Interval (0, 0), Interval (0, 0));
}
Box
return get_ascii_char (k);
}
-
int
Font_metric::name_to_index (String) const
{
Offset
Font_metric::get_indexed_wxwy (int )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);
-
+ Font_metric *m = (Font_metric*) SCM_CELL_WORD_1 (s);
m->derived_mark ();
return m->description_;
}
IMPLEMENT_DEFAULT_EQUAL_P (Font_metric);
IMPLEMENT_TYPE_P (Font_metric, "ly:font-metric?");
-Stencil
-Font_metric::find_by_name (String) const
-{
- Stencil m ;
- return m;
-}
-LY_DEFINE (ly_find_glyph_by_name, "ly:find-glyph-by-name", 2 , 0, 0,
+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 "
{
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");
+ SCM_ASSERT_TYPE (ly_string_p (name), name, SCM_ARG2, __FUNCTION__, "string");
- Stencil m = fm->find_by_name (ly_scm2string (name));
+ Stencil m = fm->find_by_name (ly_scm2string (name));
- /*
- TODO: make optional argument for default if not found.
- */
+ /* TODO: make optional argument for default if not found. */
return m.smobbed_copy ();
}
-LY_DEFINE (ly_get_glyph, "ly:get-glyph", 2 , 0, 0,
+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}. ")
+ "Retrieve a Stencil for the glyph numbered @var{index} "
+ "in @var{font}.")
{
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");
+ SCM_ASSERT_TYPE (ly_number_p (index), index, SCM_ARG2, __FUNCTION__, "number");
- return fm->get_ascii_char_stencil (gh_scm2int (index)).smobbed_copy ();
+ return fm->get_ascii_char_stencil (ly_scm2int (index)).smobbed_copy ();
}
-LY_DEFINE (ly_text_dimension,"ly:text-dimension", 2 , 0, 0,
+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.")
+ "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.")
{
Box b;
+ Modified_font_metric*fm = dynamic_cast<Modified_font_metric*>
+ (unsmob_metrics (font));
+ SCM_ASSERT_TYPE (fm, font, SCM_ARG1, __FUNCTION__, "modified font metric");
+ SCM_ASSERT_TYPE (ly_string_p (text), text, SCM_ARG2, __FUNCTION__, "string");
+
+ b = fm->text_dimension (ly_scm2string (text));
+
+ return scm_cons (ly_interval2scm (b[X_AXIS]), ly_interval2scm (b[Y_AXIS]));
+}
+
+LY_DEFINE (ly_font_name,"ly:font-name",
+ 1, 0, 0,
+ (SCM font),
+ "Given the font metric @var{font}, "
+ "return the corresponding file name.")
+{
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");
+ return ly_car (fm->description_);
+}
- b = fm->text_dimension (ly_scm2string (text));
-
- return gh_cons (ly_interval2scm (b[X_AXIS]), ly_interval2scm (b[Y_AXIS]));
+LY_DEFINE (ly_font_magnification,"ly:font-magnification", 1 , 0, 0,
+ (SCM font),
+ "Given the font metric @var{font}, return the "
+ "magnification, relative to the current outputscale.")
+{
+ Font_metric *fm = unsmob_metrics (font);
+ SCM_ASSERT_TYPE (fm, font, SCM_ARG1, __FUNCTION__, "font-metric");
+ return ly_cdr (fm->description_);
+}
+
+LY_DEFINE (ly_font_design_size,"ly:font-design-size", 1 , 0, 0,
+ (SCM font),
+ "Given the font metric @var{font}, return the "
+ "design size, relative to the current outputscale.")
+{
+ Font_metric *fm = unsmob_metrics (font);
+ SCM_ASSERT_TYPE (fm, font, SCM_ARG1, __FUNCTION__, "font-metric");
+ return scm_make_real (fm->design_size ());
+}
+
+
+
+int
+Font_metric::index_to_ascii (int i) const
+{
+ return i;
}
Stencil
-Font_metric::get_ascii_char_stencil (int code) const
+Font_metric::get_ascii_char_stencil (int 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"),
+ this->self_scm (),
+ scm_int2num (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 (int 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_int2num (code));
Box b = get_indexed_char (code);
return Stencil (b, at);
}
+
+int
+/*Font_metric::*/
+get_encoded_index (Font_metric *m, String input_coding, int code)
+{
+ String font_coding = m->coding_scheme ();
+ if (font_coding == input_coding)
+ return code;
+ SCM s = scm_call_3 (ly_scheme_function ("encoded-index"),
+ scm_makfrom0str (input_coding.to_str0 ()),
+ scm_makfrom0str (font_coding.to_str0 ()),
+ scm_int2num (code));
+ return ly_scm2int (s);
+}
projects / lilypond.git / blobdiff