-/*
+/*
font-select.cc -- implement property -> font_metric routines.
source file of the GNU LilyPond music typesetter
(c) 2003--2004 Han-Wen Nienhuys <hanwen@xs4all.nl>
-
- */
+*/
#include <math.h>
-#include "paper-def.hh"
+#include "dimensions.hh"
+#include "all-font-metrics.hh"
+#include "output-def.hh"
#include "font-interface.hh"
#include "warn.hh"
LY_DEFINE (ly_paper_get_font, "ly:paper-get-font", 2, 0, 0,
- (SCM paper, SCM chain),
+ (SCM paper_smob, SCM chain),
"Return a font metric satisfying the font-qualifiers "
"in the alist chain @var{chain}.\n"
- "(An alist chain is a list of alists, containing grob properties).\n")
+ "(An alist chain is a list of alists, "
+ "containing grob properties).\n")
{
- Paper_def *pap = unsmob_paper (paper);
- SCM_ASSERT_TYPE (pap, paper, SCM_ARG1, __FUNCTION__, "paper definition");
+ Output_def *paper = unsmob_output_def (paper_smob);
+ SCM_ASSERT_TYPE (paper, paper_smob, SCM_ARG1,
+ __FUNCTION__, "paper definition");
- Font_metric *fm = select_font (pap, chain);
+ Font_metric *fm = select_font (paper, chain);
return fm->self_scm ();
}
LY_DEFINE (ly_paper_get_number, "ly:paper-get-number", 2, 0, 0,
- (SCM paper, SCM name),
- "Return the paper variable @var{name}.")
+ (SCM layout_smob, SCM name),
+ "Return the layout variable @var{name}.")
{
- Paper_def *pap = unsmob_paper (paper);
- SCM_ASSERT_TYPE (pap, paper, SCM_ARG1, __FUNCTION__, "paper definition");
- return gh_double2scm (pap->get_realvar (name));
+ Output_def *layout = unsmob_output_def (layout_smob);
+ SCM_ASSERT_TYPE (layout, layout_smob, SCM_ARG1,
+ __FUNCTION__, "layout definition");
+ return scm_make_real (layout->get_dimension (name));
}
bool
wild_compare (SCM field_val, SCM val)
{
- return (val == SCM_BOOL_F || field_val == ly_symbol2scm ("*") || field_val == val);
+ return (val == SCM_BOOL_F
+ || field_val == ly_symbol2scm ("*")
+ || field_val == val);
}
-Font_metric*
-get_font_by_design_size (Paper_def* paper, Real requested,
- SCM font_vector)
+Font_metric *
+get_font_by_design_size (Output_def *layout, Real requested,
+ SCM font_vector,
+ SCM font_encoding, SCM input_encoding)
{
int n = SCM_VECTOR_LENGTH (font_vector);
Real size = 1e6;
Real last_size = -1e6;
int i = 0;
-
+
for (; i < n; i++)
{
- size = gh_scm2double (gh_car (SCM_VECTOR_REF (font_vector, i)));
+ SCM entry = SCM_VECTOR_REF (font_vector, i);
+ Font_metric *fm = unsmob_metrics (scm_force (entry));
+ size = fm->design_size ();
+
if (size > requested)
- break ;
- last_size = size;
+ break;
+ last_size = size;
}
if (i == n)
- {
- i = n-1;
- }
+ i = n - 1;
else if (i > 0)
{
if ((requested / last_size) < (size / requested))
{
- i -- ;
+ i--;
size = last_size;
}
}
-
- return paper->find_font (gh_cdr (SCM_VECTOR_REF (font_vector, i)),
- requested / size);
-}
+ Font_metric *fm = unsmob_metrics (scm_force (SCM_VECTOR_REF (font_vector,
+ i)));
+ return find_scaled_font (layout, fm, requested / size,
+ font_encoding, input_encoding);
+}
-Font_metric*
-get_font_by_mag_step (Paper_def* paper, Real requested_step,
- SCM font_vector, Real default_size)
+Font_metric *
+get_font_by_mag_step (Output_def *layout, Real requested_step,
+ SCM font_vector, Real default_size,
+ SCM font_encoding, SCM input_encoding)
{
- return get_font_by_design_size (paper,
- default_size * pow (2.0, requested_step / 6.0),
- font_vector);
+ return get_font_by_design_size (layout, default_size
+ * pow (2.0, requested_step / 6.0),
+ font_vector, font_encoding, input_encoding);
}
-
-
SCM
properties_to_font_size_family (SCM fonts, SCM alist_chain)
{
- return scm_call_2 (ly_scheme_function ("lookup-font"), fonts, alist_chain);
+ return scm_call_2 (ly_lily_module_constant ("lookup-font"), fonts, alist_chain);
}
-
Font_metric *
-select_font (Paper_def *paper, SCM chain)
+select_encoded_font (Output_def *layout, SCM chain, SCM input_encoding)
{
- SCM name = ly_assoc_chain (ly_symbol2scm ("font-name"), chain);
-
- if (!gh_pair_p (name) || !gh_string_p (gh_cdr (name)))
+ SCM name = ly_chain_assoc (ly_symbol2scm ("font-name"), chain);
+
+ if (!scm_is_pair (name) || !scm_is_string (scm_cdr (name)))
{
- SCM fonts = paper->lookup_variable (ly_symbol2scm ("fonts"));
+ SCM fonts = layout->lookup_variable (ly_symbol2scm ("fonts"));
name = properties_to_font_size_family (fonts, chain);
}
else
- name = gh_cdr (name);
+ name = scm_cdr (name);
-
- if (gh_string_p (name))
+ if (scm_is_string (name))
{
- SCM mag = ly_assoc_chain (ly_symbol2scm ("font-magnification"), chain);
-
- Real rmag = gh_pair_p (mag) ? robust_scm2double (gh_cdr (mag), 1.0) : 1;
-
- return paper->find_font (name, rmag);
+ SCM mag = ly_chain_assoc (ly_symbol2scm ("font-magnification"), chain);
+ Real rmag = (scm_is_pair (mag)
+ ? robust_scm2double (scm_cdr (mag), 1.0)
+ : 1);
+ Font_metric *fm = all_fonts_global->find_font (ly_scm2string (name));
+
+ SCM font_encoding
+ = scm_cdr (ly_chain_assoc (ly_symbol2scm ("font-encoding"), chain));
+ return find_scaled_font (layout, fm, rmag, font_encoding, input_encoding);
}
else if (scm_instance_p (name))
{
SCM base_size = scm_slot_ref (name, ly_symbol2scm ("default-size"));
SCM vec = scm_slot_ref (name, ly_symbol2scm ("size-vector"));
-
- SCM font_size = ly_assoc_chain (ly_symbol2scm ("font-size"), chain);
- Real req = 0.0;
- if (gh_pair_p (font_size))
- req = gh_scm2double (ly_cdr (font_size));
-
- return get_font_by_mag_step (paper, req,
- vec, gh_scm2double (base_size));
+
+ SCM font_size = ly_chain_assoc (ly_symbol2scm ("font-size"), chain);
+ Real req = 0;
+ if (scm_is_pair (font_size))
+ req = scm_to_double (scm_cdr (font_size));
+
+ SCM font_encoding
+ = scm_cdr (ly_chain_assoc (ly_symbol2scm ("font-encoding"), chain));
+
+ return get_font_by_mag_step (layout, req, vec,
+ scm_to_double (base_size) * point_constant,
+ font_encoding, input_encoding);
}
assert (0);
-
return 0;
}
-
+Font_metric *
+select_font (Output_def *layout, SCM chain)
+{
+ return select_encoded_font (layout, chain, SCM_EOL);
+}
projects / lilypond.git / blobdiff