/*
- font-metric.cc -- implement Font_metric
+ font-metric.cc -- implement Font_metric
source file of the GNU LilyPond music typesetter
- (c) 1999 Han-Wen Nienhuys <hanwen@cs.uu.nl>
-
- */
+ (c) 1999--2004 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 "font-metric.hh"
+#include "ly-smobs.icc"
-Box
-Font_metric::text_dimension (String text) const
+Real
+Font_metric::design_size () const
+{
+ return 1.0 * point_constant;
+}
+
+
+Stencil
+Font_metric::find_by_name (String s) const
{
- Interval ydims;
- Real w=0.0;
+ s.substitute_char ('-', "M");
+ int idx = name_to_index (s);
+ Box b;
- for (int i = 0; i < text.length_i (); i++)
+ SCM expr = SCM_EOL;
+ if (idx >= 0)
{
-
- if (text[i]=='\\')
- {
- for (i++; (i < text.length_i ()) && isalpha(text[i]); i++)
- ;
- // ugh.
- i--; // Compensate for the increment in the outer loop!
- }
- else
- {
- Character_metric const *c = get_char ((unsigned char)text[i],false);
-
- // Ugh, use the width of 'x' for unknown characters
- if (c->dimensions()[X_AXIS].length () == 0)
- c = get_char ((unsigned char)'x',false);
-
- w += c->dimensions()[X_AXIS].length ();
- ydims.unite (c->dimensions()[Y_AXIS]);
- }
+ expr = scm_list_3 (ly_symbol2scm ("named-glyph"),
+ self_scm (),
+ scm_makfrom0str (s.to_str0 ())
+ );
+ b = get_indexed_char (idx);
}
- if (ydims.empty_b ())
- ydims = Interval (0,0);
-
- return Box(Interval (0, w), ydims);
+
+ Stencil q (b, expr);
+ return q;
}
+Font_metric::Font_metric ()
+{
+ description_ = SCM_EOL;
+ self_scm_ = SCM_EOL;
+ smobify_self ();
+}
-Box
-Scaled_font_metric::text_dimension (String t) const
+Font_metric::Font_metric (Font_metric const &)
{
- Real realmag = pow (1.2, magstep_i_);
- Box b (orig_l_->text_dimension (t));
+}
- return Box(b[X_AXIS]* realmag, b[Y_AXIS]*realmag);
+
+Font_metric::~Font_metric ()
+{
}
+int
+Font_metric::count () const
+{
+ return 0;
+}
-Box
-Character_metric::dimensions () 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));
}
-Font_metric::~Font_metric ()
+Box
+Font_metric::get_indexed_char (int k) const
{
+ return get_ascii_char (k);
}
-Character_metric::~Character_metric()
+int
+Font_metric::name_to_index (String) const
{
+ return -1;
}
-Character_metric const *
-Font_metric::get_char (int, bool)const
+Offset
+Font_metric::get_indexed_wxwy (int) const
{
- return 0;
+ return Offset (0, 0);
}
-Scaled_font_metric::Scaled_font_metric (Font_metric* m, int s)
+void
+Font_metric::derived_mark () const
{
- magstep_i_ = s;
- orig_l_ = m;
}
SCM
-Font_metric::description () const
+Font_metric::mark_smob (SCM s)
+{
+ Font_metric *m = (Font_metric*) SCM_CELL_WORD_1 (s);
+ m->derived_mark ();
+ return m->description_;
+}
+
+int
+Font_metric::print_smob (SCM s, SCM port, scm_print_state *)
+{
+ Font_metric *m = unsmob_metrics (s);
+ scm_puts ("#<", port);
+ scm_puts (classname (m), 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?");
+
+
+SCM
+Font_metric::font_file_name () const
+{
+ return scm_car (description_);
+}
+
+String
+Font_metric::font_name () const
+{
+ String s ("unknown");
+ return s;
+}
+
+#include "afm.hh"
+
+
+int
+Font_metric::index_to_ascii (int i) const
+{
+ return i;
+}
+
+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_int2num (code));
+ Box b = get_ascii_char (code);
+ return Stencil (b, at);
+}
+
+Stencil
+Font_metric::get_indexed_char_stencil (int code) const
{
- return gh_cons (ly_symbol2scm (name_str_.ch_C()), gh_int2scm (0));
+ int idx = index_to_ascii (code);
+ SCM at = scm_list_3 (ly_symbol2scm ("char"), self_scm (), scm_int2num (idx));
+ Box b = get_indexed_char (code);
+ return Stencil (b, at);
}
+Offset
+Font_metric::attachment_point (String) const
+{
+ return Offset (0, 0);
+}
+
SCM
-Scaled_font_metric::description () const
+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 od = orig_l_->description ();
- gh_set_cdr_x (od, gh_int2scm (magstep_i_));
- return od;
+ return Box (Interval (0,0), Interval (0,0));
}
+
projects / lilypond.git / blobdiff