/*
- scaled-font-metric.cc -- declare Modified_font_metric
-
+ modified-font-metric.cc -- declare Modified_font_metric
+
source file of the GNU LilyPond music typesetter
-
- (c) 1999--2004 Han-Wen Nienhuys <hanwen@cs.uu.nl>
-
- */
-#include <ctype.h>
+ (c) 1999--2008 Han-Wen Nienhuys <hanwen@xs4all.nl>
+*/
+#include <cctype>
+using namespace std;
+#include "modified-font-metric.hh"
+#include "pango-font.hh"
+#include "text-metrics.hh"
#include "warn.hh"
-#include "scaled-font-metric.hh"
-#include "string.hh"
#include "stencil.hh"
+#include "main.hh"
+#include "program-option.hh"
-Modified_font_metric::Modified_font_metric (String coding, Font_metric* m, Real magn)
+Modified_font_metric::Modified_font_metric (Font_metric *fm,
+ Real magnification)
{
- coding_vector_ = SCM_EOL;
- coding_mapping_ = SCM_EOL;
- coding_table_ = SCM_EOL;
- coding_description_ = SCM_EOL;
-
- coding_scheme_ = coding;
- magnification_ = magn;
-
- SCM desc = m->description_;
-
- Real total_mag = magn * ly_scm2double (ly_cdr (desc));
- assert (total_mag);
-
- description_ = scm_cons (ly_car (desc), scm_make_real (total_mag));
- orig_ = m;
-
- if (coding_scheme_ != "TeX"
- && coding_scheme_ != "ASCII"
- && coding_scheme_ != orig_->coding_scheme ())
- {
- coding_vector_ = scm_call_1 (ly_scheme_function ("get-coding-vector"),
- scm_makfrom0str (coding_scheme_.to_str0 ()));
-
- if (!ly_c_vector_p (coding_vector_))
- {
- programming_error ("get-coding-vector should return vector");
- coding_vector_ = scm_c_make_vector (256, ly_symbol2scm (".notdef"));
- }
-
-
- coding_table_ = scm_call_1 (ly_scheme_function ("get-coding-table"),
- scm_makfrom0str (orig_->coding_scheme ().to_str0 ()));
-
- coding_mapping_ = scm_call_2 (ly_scheme_function ("make-encoding-mapping"),
- coding_vector_,
- coding_table_);
-
- coding_description_= SCM_EOL;
-
- coding_description_ = scm_acons (ly_symbol2scm ("input-name"),
- scm_makfrom0str (coding_scheme_.to_str0 ()),
- coding_description_);
-
- coding_description_ = scm_acons (ly_symbol2scm ("input-vector"),
- coding_vector_, coding_description_);
- coding_description_ = scm_acons (ly_symbol2scm ("output-name"),
- scm_makfrom0str (orig_->coding_scheme ().to_str0 ()),
- coding_description_);
- coding_description_ = scm_acons (ly_symbol2scm ("output-table"),
- coding_table_,
- coding_description_);
-
- coding_description_ = scm_acons (ly_symbol2scm ("char-mapping"),
- coding_mapping_,
- coding_description_);
- }
-}
+ magnification_ = magnification;
+ SCM desc = fm->description_;
+ Real total_mag = magnification * scm_to_double (scm_cdr (desc));
+ assert (total_mag);
-LY_DEFINE (ly_font_encoding_alist, "ly:font-encoding-alist",
- 1, 0, 0,
- (SCM font),
- "Given the Modified_font_metric @var{font}, return an "
- "alist. Keys are input-name, input-vector, "
- "output-name, output-table, mapping.")
-{
- Modified_font_metric *fm
- = dynamic_cast<Modified_font_metric*> (unsmob_metrics (font));
-
- SCM_ASSERT_TYPE (fm, font, SCM_ARG1, __FUNCTION__, "Modified_font_metric");
- return fm->coding_description_;
+ description_ = scm_cons (scm_car (desc), scm_from_double (total_mag));
+ orig_ = fm;
}
SCM
-Modified_font_metric::make_scaled_font_metric (SCM coding, Font_metric *m, Real s)
+Modified_font_metric::make_scaled_font_metric (Font_metric *fm, Real scaling)
{
- /*
- UGOHR.
- */
- if (ly_c_symbol_p (coding))
- coding = scm_symbol_to_string (coding);
-
- String scheme = ly_scm2string (coding);
-
- Modified_font_metric *sfm = new Modified_font_metric (scheme, m, s);
-
+ Modified_font_metric *sfm = new Modified_font_metric (fm, scaling);
return sfm->self_scm ();
}
return orig_->design_size ();
}
-
-Box
-Modified_font_metric::get_indexed_char (int i) const
+Box
+Modified_font_metric::get_indexed_char (vsize i) const
{
Box b = orig_->get_indexed_char (i);
b.scale (magnification_);
- return b;
+ return b;
}
-Box
-Modified_font_metric::get_ascii_char (int i) const
+Box
+Modified_font_metric::get_ascii_char (vsize i) const
{
Box b = orig_->get_ascii_char (i);
b.scale (magnification_);
- return b;
+ return b;
}
-int
+vsize
Modified_font_metric::count () const
{
return orig_->count ();
}
Offset
-Modified_font_metric::get_indexed_wxwy (int k) const
+Modified_font_metric::attachment_point (string s) const
+{
+ Offset o = orig_->attachment_point (s);
+ return o * magnification_;
+}
+
+Offset
+Modified_font_metric::get_indexed_wxwy (vsize k) const
{
Offset o = orig_->get_indexed_wxwy (k);
return o * magnification_;
}
-int
-Modified_font_metric::name_to_index (String s) const
+vsize
+Modified_font_metric::name_to_index (string s) const
{
return orig_->name_to_index (s);
}
-int
-Modified_font_metric::index_to_ascii (int k) const
+vsize
+Modified_font_metric::index_to_charcode (vsize i) const
{
- return orig_->index_to_ascii (k);
+ return orig_->index_to_charcode (i);
}
-String
-Modified_font_metric::coding_scheme () const
+vsize
+Modified_font_metric::index_to_ascii (vsize k) const
{
- return coding_scheme_;
+ return orig_->index_to_ascii (k);
}
void
Modified_font_metric::derived_mark () const
{
- scm_gc_mark (coding_vector_);
- scm_gc_mark (coding_description_);
- scm_gc_mark (coding_table_);
- scm_gc_mark (coding_mapping_);
}
+/* TODO: put this klutchness behind ly:option switch. */
Box
-Modified_font_metric::tex_kludge (String text) const
+Modified_font_metric::tex_kludge (string text) const
{
Interval ydims;
- Real w=0.0;
-
- /*
- TODO: put this klutchness behind ly:option switch.
- */
- for (int i = 0; i < text.length (); i++)
+ Real w = 0;
+ for (ssize i = 0; i < text.length (); i++)
{
- switch (text[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])
+ /* Accent marks use width of base letter */
+ if (i < text.length () - 1)
+ {
+ 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!
+
+ /* Compensate for the auto-increment in the outer loop. */
+ i--;
break;
- case '{': // Skip '{' and '}'
+
+ case '{': // Skip '{' and '}'
case '}':
break;
-
- default:
+
+ 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)
+
+ /* 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);
}
-Box
-Modified_font_metric::text_dimension (String text)
+Stencil
+Modified_font_metric::text_stencil (string text) const
{
- Box b;
- if (coding_scheme_ == "TeX")
+ Box b;
+ if (Pango_font *pf = dynamic_cast<Pango_font *> (orig_))
{
- b = tex_kludge (text);
- }
- else if (coding_scheme_ == "ASCII"
- || coding_scheme_ == orig_->coding_scheme ())
- {
- Interval ydims;
+ Stencil stc = pf->text_stencil (text);
- Real w=0.0;
+ Box b = stc.extent_box ();
- for (int i = 0; i < text.length (); i++)
- {
- Box b = get_ascii_char ((unsigned char)text[i]);
-
- w += b[X_AXIS].length ();
- ydims.unite (b[Y_AXIS]);
- }
- if (ydims.is_empty ())
- ydims = Interval (0, 0);
-
- b = Box(Interval(0,w), ydims);
+ b.scale (magnification_);
+ Stencil scaled (b, stc.expr ());
+ return scaled;
}
- else
+
+ return Font_metric::text_stencil (text);
+}
+
+Box
+Modified_font_metric::text_dimension (string text) const
+{
+ SCM stext = ly_string2scm (text);
+
+ Box b;
+ if (get_output_backend_name () == "tex")
{
- Interval ydims;
- Real w = 0.0;
+ b = lookup_tex_text_dimension (orig_, stext);
- for (int i = 0; i < text.length (); i++)
+ if (!b[Y_AXIS].is_empty ())
{
- SCM sym = scm_vector_ref (coding_vector_,
- SCM_MAKINUM((unsigned char) text[i]));
-
- Box char_box;
+ b.scale (magnification_);
+ return b;
+ }
- if (!ly_c_symbol_p (sym))
- continue;
+ b = tex_kludge (text);
+ return b;
+ }
- char const * chars = SCM_SYMBOL_CHARS(sym);
-
- int idx = orig_->name_to_index (chars);
- if (idx >= 0)
- {
- char_box = orig_->get_indexed_char (idx);
- }
-
- char_box.scale (magnification_);
- if (!char_box[X_AXIS].is_empty ())
- w += char_box[X_AXIS][RIGHT]; // length ?
+ Interval ydims;
- ydims.unite (char_box[Y_AXIS]);
- }
+ Real w = 0.0;
- if (ydims.is_empty ())
- ydims = Interval (0, 0);
+ for (ssize i = 0; i < text.length (); i++)
+ {
+ Box b = get_ascii_char ((unsigned char)text[i]);
-
- b = Box (Interval (0, w), ydims);
+ w += b[X_AXIS].length ();
+ ydims.unite (b[Y_AXIS]);
}
-
+ if (ydims.is_empty ())
+ ydims = Interval (0, 0);
+
+ b = Box (Interval (0, w), ydims);
return b;
}
-Font_metric*
+Font_metric *
Modified_font_metric::original_font () const
{
return orig_;
}
+
+SCM
+Modified_font_metric::sub_fonts () const
+{
+ return orig_->sub_fonts ();
+}
+
+string
+Modified_font_metric::font_name () const
+{
+ return original_font ()->font_name ();
+}
projects / lilypond.git / blobdiff