-/*
+/*
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 "all-font-metrics.hh"
#include "output-def.hh"
#include "font-interface.hh"
}
LY_DEFINE (ly_paper_get_number, "ly:paper-get-number", 2, 0, 0,
- (SCM paper_smob, SCM name),
- "Return the paper variable @var{name}.")
+ (SCM layout_smob, SCM name),
+ "Return the layout variable @var{name}.")
{
- Output_def *paper = unsmob_output_def (paper_smob);
- SCM_ASSERT_TYPE (paper, paper_smob, SCM_ARG1,
- __FUNCTION__, "paper definition");
- return scm_make_real (paper->get_dimension (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
design size is specced in advance.
*/
Font_metric *
-get_font_by_design_size (Output_def *paper, Real requested,
- SCM font_vector, SCM input_encoding)
+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++)
{
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;
+ last_size = size;
}
if (i == n)
Font_metric *fm = unsmob_metrics (scm_force (SCM_VECTOR_REF (font_vector,
i)));
- return find_scaled_font (paper, fm, requested / size, input_encoding);
-
+ return find_scaled_font (layout, fm, requested / size,
+ font_encoding, input_encoding);
}
-Font_metric*
-get_font_by_mag_step (Output_def *paper, Real requested_step,
+Font_metric *
+get_font_by_mag_step (Output_def *layout, Real requested_step,
SCM font_vector, Real default_size,
- SCM input_encoding)
+ SCM font_encoding, SCM input_encoding)
{
- return get_font_by_design_size (paper, default_size
+ return get_font_by_design_size (layout, default_size
* pow (2.0, requested_step / 6.0),
- font_vector, input_encoding);
+ 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_encoded_font (Output_def *paper, SCM chain, SCM input_encoding)
+select_encoded_font (Output_def *layout, SCM chain, SCM input_encoding)
{
- SCM name = ly_assoc_chain (ly_symbol2scm ("font-name"), chain);
-
- if (!ly_c_pair_p (name) || !ly_c_string_p (ly_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 = ly_cdr (name);
+ name = scm_cdr (name);
- if (ly_c_string_p (name))
+ if (scm_is_string (name))
{
- SCM mag = ly_assoc_chain (ly_symbol2scm ("font-magnification"), chain);
- Real rmag = (ly_c_pair_p (mag)
- ? robust_scm2double (ly_cdr (mag), 1.0)
+ 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));
-
- return find_scaled_font (paper, fm, rmag, input_encoding);
+
+ 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);
+
+ SCM font_size = ly_chain_assoc (ly_symbol2scm ("font-size"), chain);
Real req = 0;
- if (ly_c_pair_p (font_size))
- req = ly_scm2double (ly_cdr (font_size));
+ 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 (paper, req, vec, ly_scm2double (base_size),
- input_encoding);
+ return get_font_by_mag_step (layout, req, vec, scm_to_double (base_size),
+ font_encoding, input_encoding);
}
assert (0);
}
Font_metric *
-select_font (Output_def *paper, SCM chain)
+select_font (Output_def *layout, SCM chain)
{
- return select_encoded_font (paper, chain, SCM_EOL);
+ return select_encoded_font (layout, chain, SCM_EOL);
}