-/*
+/*
paper-def.cc -- implement Paper_def
source file of the GNU LilyPond music typesetter
- (c) 1997--2004 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+ (c) 2004 Han-Wen Nienhuys <hanwen@xs4all.nl>
*/
-
-#include <math.h>
-
-#include "virtual-font-metric.hh"
-#include "all-font-metrics.hh"
-#include "string.hh"
-#include "misc.hh"
-#include "paper-def.hh"
-#include "warn.hh"
-#include "scaled-font-metric.hh"
-#include "main.hh"
-#include "scm-hash.hh"
-#include "paper-outputter.hh"
+#include "dimensions.hh"
#include "ly-module.hh"
-
-/*
- This is an almost empty thing. The only substantial thing this class
- handles is scaling up and down to real-world dimensions (internally
- dimensions are against global staff-space.)
- */
-
-Paper_def::Paper_def ()
-{
- /* Do not remove this statement, scm_make_hash_table may trigger GC. */
- scaled_fonts_ = SCM_EOL;
- scaled_fonts_ = scm_c_make_hash_table (11);
-}
-
-Paper_def::Paper_def (Paper_def const&src)
- : Music_output_def (src)
-{
- /* Do not remove this statement, scm_make_hash_table may trigger GC. */
- scaled_fonts_ = SCM_EOL;
- scaled_fonts_ = scm_c_make_hash_table (11);
-}
-
-Paper_def::~Paper_def ()
-{
-}
-
-void
-Paper_def::derived_mark ()
-{
- scm_gc_mark (scaled_fonts_);
-}
+#include "output-def.hh"
+#include "modified-font-metric.hh"
+#include "virtual-font-metric.hh"
Real
-Paper_def::get_dimension (SCM s) const
+output_scale (Output_def *od)
{
- SCM val = lookup_variable (s);
- SCM scale = lookup_variable (ly_symbol2scm ("outputscale"));
-
- Real sc = ly_scm2double (scale);
- return ly_scm2double (val) / sc;
+ return scm_to_double (od->lookup_variable (ly_symbol2scm ("outputscale")));
}
-/* FIXME. This is broken until we have a generic way of
- putting lists inside the \paper block. */
-Interval
-Paper_def::line_dimensions_int (int n) const
+/* TODO: should add nesting for Output_def here too. */
+Font_metric *
+find_scaled_font (Output_def *mod, Font_metric *f, Real m,
+ SCM font_encoding, SCM input_encoding)
{
- Real lw = get_dimension (ly_symbol2scm ("linewidth"));
- Real ind = n? 0.0:get_dimension (ly_symbol2scm ("indent"));
-
- return Interval (ind, lw);
-}
+ if (mod->parent_)
+ return find_scaled_font (mod->parent_, f, m, font_encoding, input_encoding);
+
+ Real lookup_mag = m;
+ if (!dynamic_cast<Virtual_font_metric*> (f))
+ lookup_mag /= output_scale (mod);
-Paper_outputter*
-Paper_def::get_paper_outputter (String outname) const
-{
- progress_indication (_f ("paper output to `%s'...",
- outname == "-" ? String ("<stdout>") : outname));
- return new Paper_outputter (outname);
-}
+ SCM font_table = mod->lookup_variable (ly_symbol2scm ("scaled-fonts"));
+ if (scm_hash_table_p (font_table) != SCM_BOOL_T)
+ {
+ font_table = scm_c_make_hash_table (11);
+ mod->set_variable (ly_symbol2scm ("scaled-fonts"), font_table);
+ }
-Font_metric*
-Paper_def::find_scaled_font (Font_metric *f, Real m, SCM input_enc_name)
-{
- SCM sizes = scm_hashq_ref (scaled_fonts_, f->self_scm (), SCM_BOOL_F);
+
+ SCM sizes = scm_hashq_ref (font_table, f->self_scm (), SCM_BOOL_F);
if (sizes != SCM_BOOL_F)
{
- SCM met = scm_assoc (scm_make_real (m), sizes);
- if (ly_c_pair_p (met))
- return unsmob_metrics (ly_cdr (met));
+ SCM met = scm_assoc (scm_make_real (lookup_mag), sizes);
+ if (scm_is_pair (met))
+ return unsmob_metrics (scm_cdr (met));
}
else
sizes = SCM_EOL;
{
/* For fontify_atom (), the magnification and name must be known
at the same time. That's impossible for
-
- Scaled (Virtual_font (Font1,Font2))
-
- so we replace by
-
- Virtual_font (Scaled (Font1), Scaled (Font2)) */
+
+ Scaled (Virtual_font (Font1,Font2))
+
+ so we replace by
+
+ Virtual_font (Scaled (Font1), Scaled (Font2)) */
SCM lst = SCM_EOL;
SCM *t = &lst;
- for (SCM s = vf->get_font_list (); ly_c_pair_p (s); s = ly_cdr (s))
+ for (SCM s = vf->get_font_list (); scm_is_pair (s); s = scm_cdr (s))
{
- Font_metric *scaled = find_scaled_font (unsmob_metrics (ly_car (s)),
- m, input_enc_name);
+ Font_metric *scaled
+ = find_scaled_font (mod, unsmob_metrics (scm_car (s)), m,
+ font_encoding, input_encoding);
*t = scm_cons (scaled->self_scm (), SCM_EOL);
- t = SCM_CDRLOC(*t);
+ t = SCM_CDRLOC (*t);
}
vf = new Virtual_font_metric (lst);
val = vf->self_scm ();
}
else
- {
- SCM scale_var = ly_module_lookup (scope_, ly_symbol2scm ("outputscale"));
-
- if (!ly_c_symbol_p (input_enc_name))
- {
- SCM var = ly_module_lookup (scope_, ly_symbol2scm ("inputencoding"));
- input_enc_name = scm_variable_ref (var);
- }
- m /= ly_scm2double (scm_variable_ref (scale_var));
- val = Modified_font_metric::make_scaled_font_metric (input_enc_name,
- f, m);
- }
+ val = Modified_font_metric::make_scaled_font_metric (f, lookup_mag,
+ font_encoding,
+ input_encoding);
- sizes = scm_acons (scm_make_real (m), val, sizes);
+ sizes = scm_acons (scm_make_real (lookup_mag), val, sizes);
scm_gc_unprotect_object (val);
- scm_hashq_set_x (scaled_fonts_, f->self_scm (), sizes);
+ scm_hashq_set_x (font_table, f->self_scm (), sizes);
return unsmob_metrics (val);
}
-
-/* Return alist to translate internally used fonts back to real-world
- coordinates. */
-SCM
-Paper_def::font_descriptions () const
+/* TODO: this is a nasty interface. During formatting,
+ the Output_def should be scaled to the output_scale_
+ specified in the toplevel Output_def. */
+Output_def *
+scale_output_def (Output_def *o, Real amount)
{
- SCM func = ly_scheme_function ("hash-table->alist");
+ SCM proc = ly_scheme_function ("scale-layout");
+ SCM new_pap = scm_call_2 (proc, o->self_scm (), scm_double2num (amount));
+ scm_gc_protect_object (new_pap);
- SCM l = SCM_EOL;
- for (SCM s = scm_call_1 (func, scaled_fonts_); ly_c_pair_p (s); s = ly_cdr (s))
- {
- SCM entry = ly_car (s);
- for (SCM t = ly_cdr (entry); ly_c_pair_p (t); t = ly_cdr (t))
- {
- Font_metric *fm= unsmob_metrics (ly_cdar (t));
-
- if (dynamic_cast<Modified_font_metric*> (fm))
- l = scm_cons (fm->self_scm (), l);
- }
- }
- return l;
+ return unsmob_output_def (new_pap);
}
-Paper_def*
-unsmob_paper (SCM x)
+LY_DEFINE (ly_paper_fonts, "ly:paper-fonts",
+ 1, 0, 0,
+ (SCM bp),
+ "Return fonts scaled up BP")
{
- return dynamic_cast<Paper_def*> (unsmob_music_output_def (x));
-}
+ Output_def *b = unsmob_output_def (bp);
+
+ SCM font_table = b->lookup_variable (ly_symbol2scm ("scaled-fonts"));
+ SCM_ASSERT_TYPE (b, bp, SCM_ARG1, __FUNCTION__, "paper");
-LY_DEFINE (ly_paper_def_p, "ly:paper-def?",
- 1, 0, 0, (SCM def),
- "Is @var{def} a paper definition?")
-{
- Paper_def *op = dynamic_cast<Paper_def*> (unsmob_music_output_def (def));
+ SCM ell = SCM_EOL;
+ if (scm_hash_table_p (font_table) == SCM_BOOL_T)
+ {
+ SCM func = ly_scheme_function ("hash-table->alist");
- bool pap = op;
- return ly_bool2scm (pap);
+ for (SCM s = scm_call_1 (func, font_table); scm_is_pair (s);
+ s = scm_cdr (s))
+ {
+ SCM entry = scm_car (s);
+ for (SCM t = scm_cdr (entry); scm_is_pair (t); t = scm_cdr (t))
+ {
+ Font_metric *fm = unsmob_metrics (scm_cdar (t));
+
+ if (dynamic_cast<Modified_font_metric*> (fm))
+ ell = scm_cons (fm->self_scm (), ell);
+ }
+ }
+ }
+ return ell;
}
projects / lilypond.git / blobdiff