-/*
+/*
paper-def.cc -- implement Paper_def
source file of the GNU LilyPond music typesetter
- (c) 1997--2000 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+ (c) 2004--2005 Han-Wen Nienhuys <hanwen@xs4all.nl>
*/
-#include <math.h>
-
-#include "all-font-metrics.hh"
-#include "string.hh"
-#include "misc.hh"
-#include "paper-def.hh"
-#include "debug.hh"
-#include "font-metric.hh"
-#include "main.hh"
-#include "scope.hh"
-#include "file-results.hh" // urg? header_global_p
-#include "paper-stream.hh"
-
-Paper_def::Paper_def ()
-{
- style_sheet_ = SCM_EOL;
- scaled_fonts_ = SCM_EOL;
-}
-
-Paper_def::~Paper_def ()
-{
-}
-
-Paper_def::Paper_def (Paper_def const&src)
- : Music_output_def (src)
-{
- scaled_fonts_ = SCM_EOL;
- style_sheet_ = src.style_sheet_;
-}
-
+#include "dimensions.hh"
+#include "output-def.hh"
+#include "modified-font-metric.hh"
+#include "pango-font.hh"
Real
-Paper_def::get_var (String s) const
+output_scale (Output_def *od)
{
- return get_realvar (ly_symbol2scm (s.ch_C()));
+ return scm_to_double (od->lookup_variable (ly_symbol2scm ("outputscale")));
}
-SCM
-Paper_def::get_scmvar (String s) const
-{
- return scope_p_->scm_elem (ly_symbol2scm (s.ch_C()));
-}
-Real
-Paper_def::get_realvar (SCM s) const
+SCM
+get_font_table (Output_def *def)
{
- SCM val ;
- if (!scope_p_->try_retrieve (s, &val))
+ SCM font_table = def->lookup_variable (ly_symbol2scm ("scaled-fonts"));
+ if (scm_hash_table_p (font_table) != SCM_BOOL_T)
{
- programming_error ("unknown paper variable: " + ly_symbol2string (s));
- return 0.0;
+ font_table = scm_c_make_hash_table (11);
+ def->set_variable (ly_symbol2scm ("scaled-fonts"), font_table);
}
-
- Real sc = 1.0;
- SCM ssc;
- if (scope_p_->try_retrieve (ly_symbol2scm ("outputscale"), &ssc))
- {
- sc = gh_scm2double (ssc);
- }
- if (gh_number_p (val))
- {
- return gh_scm2double (val) / sc;
- }
- else
- {
- programming_error ("not a real variable");
- return 0.0;
- }
-}
-
-/*
- 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
-{
- Real lw = get_var ("linewidth");
- Real ind = n? 0.0:get_var ("indent");
-
- return Interval (ind, lw);
-}
-
-
-
-int Paper_def::default_count_i_ = 0;
-
-int
-Paper_def::get_next_default_count () const
-{
- return default_count_i_ ++;
+ return font_table;
}
+
-void
-Paper_def::reset_default_count()
-{
- default_count_i_ = 0;
-}
-
-
-Paper_stream*
-Paper_def::paper_stream_p () const
-{
- String outname = base_output_str ();
-
- if (outname != "-")
- outname += String (".") + output_global_ch;
- progress_indication (_f ("paper output to %s...",
- outname == "-" ? String ("<stdout>") : outname));
-
- target_str_global_array.push (outname);
- return new Paper_stream (outname);
-}
-
-
-String
-Paper_def::base_output_str () const
-{
- String str = get_default_output ();
-
- if (str.empty_b ())
- {
- str = default_outname_base_global;
- int def = get_next_default_count ();
- if (def)
- str += "-" + to_str (def);
- }
- return str;
-}
-/*
- todo: use symbols and hashtable idx?
-*/
+/* TODO: should add nesting for Output_def here too. */
Font_metric *
-Paper_def::find_font (SCM fn, Real m)
+find_scaled_font (Output_def *mod, Font_metric *f, Real m)
{
- SCM key = gh_cons (fn, gh_double2scm (m));
- SCM met = scm_assoc (key, scaled_fonts_);
-
- if (gh_pair_p (met))
- return unsmob_metrics (gh_cdr (met));
-
- SCM ssc;
- if (scope_p_->try_retrieve (ly_symbol2scm ("outputscale"), &ssc))
+ if (mod->parent_)
+ return find_scaled_font (mod->parent_, f, m);
+
+ Real lookup_mag = m / output_scale (mod);
+
+ SCM font_table = get_font_table (mod);
+ SCM sizes = scm_hashq_ref (font_table, f->self_scm (), SCM_BOOL_F);
+ if (sizes != SCM_BOOL_F)
{
- m /= gh_scm2double (ssc);
+ 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;
- Font_metric* f = all_fonts_global_p->find_font (ly_scm2string (fn));
- SCM val = Scaled_font_metric::make_scaled_font_metric (f, m);
- scaled_fonts_ = scm_acons (key, val, scaled_fonts_ );
-
- scm_unprotect_object (val);
-
- return dynamic_cast<Scaled_font_metric*> (unsmob_metrics (val));
+ SCM val = Modified_font_metric::make_scaled_font_metric (f, lookup_mag);
+
+ sizes = scm_acons (scm_make_real (lookup_mag), val, sizes);
+ scm_gc_unprotect_object (val);
+ 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 proc = ly_lily_module_constant ("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 = scaled_fonts_; gh_pair_p (s); s = gh_cdr(s))
- {
- SCM desc = gh_caar (s);
- SCM mdesc = unsmob_metrics (gh_cdar (s))->description_;
-
- l = gh_cons (gh_cons (mdesc, desc), l);
- }
- return l;
+ return unsmob_output_def (new_pap);
}
+
projects / lilypond.git / blobdiff