+
+IMPLEMENT_SMOBS (Font_metric);
+IMPLEMENT_DEFAULT_EQUAL_P (Font_metric);
+IMPLEMENT_TYPE_P (Font_metric, "ly:font-metric?");
+
+
+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, @code{#f} is returned. ")
+{
+ Font_metric *fm = unsmob_metrics (font);
+ SCM_ASSERT_TYPE (fm, font, SCM_ARG1, __FUNCTION__, "font-metric");
+ SCM_ASSERT_TYPE (scm_is_string (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 ();
+}
+
+LY_DEFINE (ly_get_glyph, "ly:get-glyph",
+ 2, 0, 0,
+ (SCM font, SCM index),
+ "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 (scm_is_number (index), index, SCM_ARG2, __FUNCTION__, "number");
+
+ return fm->get_ascii_char_stencil (scm_to_int (index)).smobbed_copy ();
+}
+
+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.")
+{
+ 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 (scm_is_string (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_filename,"ly:font-filename",
+ 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");
+ return scm_car (fm->description_);
+}
+
+
+#include "afm.hh"
+
+LY_DEFINE (ly_font_name,"ly:font-name",
+ 1, 0, 0,
+ (SCM font),
+ "Given the font metric @var{font}, "
+ "return the corresponding name.")
+{
+ Font_metric *fm = unsmob_metrics (font);
+
+ SCM_ASSERT_TYPE (fm, font, SCM_ARG1, __FUNCTION__, "font-metric");
+
+
+ if (Modified_font_metric* mfm = dynamic_cast<Modified_font_metric*> (fm))
+ return ly_font_name (mfm->original_font ()->self_scm ());
+ else if (Adobe_font_metric* afm = dynamic_cast<Adobe_font_metric*> (fm))
+ {
+ return scm_makfrom0str (afm->font_info_->gfi->fontName);
+ }
+ else
+ return SCM_BOOL_F;
+}
+
+
+
+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 scm_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
+{
+ 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
+{
+ 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 scm_to_int (s);
+}