source file of the GNU LilyPond music typesetter
- (c) 1997--2000 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+ (c) 2004--2008 Han-Wen Nienhuys <hanwen@xs4all.nl>
*/
-#include <math.h>
+#include "dimensions.hh"
+#include "output-def.hh"
+#include "modified-font-metric.hh"
+#include "pango-font.hh"
+#include "all-font-metrics.hh"
-#include "string.hh"
-#include "misc.hh"
-#include "paper-def.hh"
-#include "debug.hh"
-#include "lookup.hh"
-#include "main.hh"
-#include "scope.hh"
-#include "file-results.hh" // urg? header_global_p
-#include "paper-stream.hh"
-
-Paper_def::Paper_def ()
-{
- lookup_alist_ = SCM_EOL;
-}
-
-
-Paper_def::~Paper_def ()
+Real
+output_scale (Output_def *od)
{
+ return scm_to_double (od->lookup_variable (ly_symbol2scm ("output-scale")));
}
-Paper_def::Paper_def (Paper_def const&src)
- : Music_output_def (src)
+SCM
+get_font_table (Output_def *def)
{
- SCM n = SCM_EOL;
- for (SCM s = src.lookup_alist_; gh_pair_p(s); s = gh_cdr (s))
+ SCM font_table = def->lookup_variable (ly_symbol2scm ("scaled-fonts"));
+ if (scm_hash_table_p (font_table) != SCM_BOOL_T)
{
- n = scm_acons (gh_caar(s), gh_cdar (s), n);
+ font_table = scm_c_make_hash_table (11);
+ def->set_variable (ly_symbol2scm ("scaled-fonts"), font_table);
}
-
- lookup_alist_ = n;
-}
-
-
-Real
-Paper_def::get_var (String s) const
-{
- return get_realvar (ly_symbol2scm (s.ch_C()));
+ return font_table;
}
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
+get_pango_font_table (Output_def *def)
{
- if (!scope_p_->elem_b (s))
+ SCM font_table = def->lookup_variable (ly_symbol2scm ("pango-fonts"));
+ if (scm_hash_table_p (font_table) != SCM_BOOL_T)
{
- programming_error ("unknown paper variable: " + ly_symbol2string (s));
- return 0.0;
- }
- SCM val = scope_p_->scm_elem (s);
- if (gh_number_p (val))
- {
- return gh_scm2double (val);
- }
- else
- {
- programming_error ("not a real variable");
- return 0.0;
+ font_table = scm_c_make_hash_table (11);
+ def->set_variable (ly_symbol2scm ("pango-fonts"), font_table);
}
+ return font_table;
}
-/*
- 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)
{
- Real lw = get_var ("linewidth");
- Real ind = n? 0.0:get_var ("indent");
+ if (mod->parent_)
+ return find_scaled_font (mod->parent_, f, m);
- return Interval (ind, lw);
-}
+ Real lookup_mag = m / output_scale (mod);
-void
-Paper_def::set_lookup (int i, SCM l)
-{
- assert (unsmob_lookup (l));
- lookup_alist_ = scm_assq_set_x(lookup_alist_, gh_int2scm (i), l);
-}
+ SCM font_table = get_font_table (mod);
+ SCM sizes = scm_hashq_ref (font_table, f->self_scm (), SCM_EOL);
+ SCM handle = scm_assoc (scm_from_double (lookup_mag), sizes);
+ if (scm_is_pair (handle))
+ return unsmob_metrics (scm_cdr (handle));
+ SCM val = Modified_font_metric::make_scaled_font_metric (f, lookup_mag);
-/*
- junkme.
- */
-Real
-Paper_def::interbeam_f (int multiplicity_i) const
-{
- if (multiplicity_i <= 3)
- return get_var ("interbeam");
- else
- return get_var ("interbeam4");
+ sizes = scm_acons (scm_from_double (lookup_mag), val, sizes);
+ unsmob_metrics (val)->unprotect ();
+ scm_hashq_set_x (font_table, f->self_scm (), sizes);
+ return unsmob_metrics (val);
}
-
-void
-Paper_def::print () const
+Font_metric *
+find_pango_font (Output_def *layout, SCM descr, Real factor)
{
-#ifndef NPRINT
- Music_output_def::print ();
- if (flower_dstream)
- gh_display (lookup_alist_);
-#endif
-}
+ if (layout->parent_)
+ return find_pango_font (layout->parent_, descr, factor);
-Lookup const *
-Paper_def::lookup_l (int i) const
-{
- SCM l = scm_assq (gh_int2scm(i), lookup_alist_);
- return l == SCM_BOOL_F ? 0 : unsmob_lookup (gh_cdr (l));
-}
+ SCM table = get_pango_font_table (layout);
+ SCM sizes = scm_hash_ref (table, descr, SCM_EOL);
+ SCM size_key = scm_from_double (factor);
+ SCM handle = scm_assoc (size_key, sizes);
+ if (scm_is_pair (handle))
+ return unsmob_metrics (scm_cdr (handle));
-int Paper_def::default_count_i_ = 0;
-
-int
-Paper_def::get_next_default_count () const
-{
- return default_count_i_ ++;
-}
-
-void
-Paper_def::reset_default_count()
-{
- default_count_i_ = 0;
-}
+ PangoFontDescription *description
+ = pango_font_description_from_string (scm_i_string_chars (descr));
+ pango_font_description_set_size (description,
+ gint (factor *
+ pango_font_description_get_size (description)));
-Paper_stream*
-Paper_def::paper_stream_p () const
-{
- String outname = base_output_str ();
+
+ Font_metric *fm = all_fonts_global->find_pango_font (description,
+ output_scale (layout));
- if (outname != "-")
- outname += String (".") + output_global_ch;
- progress_indication (_f ("paper output to %s...",
- outname == "-" ? String ("<stdout>") : outname));
+ pango_font_description_free (description);
+
+ sizes = scm_acons (size_key, fm->self_scm (), sizes);
+ scm_hash_set_x (table, descr, sizes);
- target_str_global_array.push (outname);
- return new Paper_stream (outname);
+ return fm;
}
-
-String
-Paper_def::base_output_str () 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)
{
- String str = get_default_output ();
+ SCM proc = ly_lily_module_constant ("scale-layout");
+ SCM new_pap = scm_call_2 (proc, o->self_scm (), scm_double2num (amount));
- if (str.empty_b ())
- {
- str = default_outname_base_global;
- int def = get_next_default_count ();
- if (def)
- str += "-" + to_str (def);
- }
- return str;
+ o = unsmob_output_def (new_pap);
+ o->protect ();
+ return o;
}
-
projects / lilypond.git / blobdiff