-/*
+/*
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 "input-file-results.hh" // urg? header_global
-#include "paper-outputter.hh"
-#include "ly-modules.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 ()
-{
-}
-
-Paper_def::~Paper_def ()
-{
-}
-
-Paper_def::Paper_def (Paper_def const&src)
- : Music_output_def (src)
-{
-}
-
-
+#include "dimensions.hh"
+#include "ly-module.hh"
+#include "output-def.hh"
+#include "modified-font-metric.hh"
+#include "pango-font.hh"
Real
-Paper_def::get_realvar (SCM s) const
-{
- SCM val = lookup_variable (s);
- SCM scale = lookup_variable (ly_symbol2scm ("outputscale"));
-
- Real sc = gh_scm2double (scale);
- return gh_scm2double (val) / sc;
-}
-
-/*
- 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
+output_scale (Output_def *od)
{
- Real lw = get_realvar (ly_symbol2scm ("linewidth"));
- Real ind = n? 0.0:get_realvar (ly_symbol2scm ("indent"));
-
- return Interval (ind, lw);
+ return scm_to_double (od->lookup_variable (ly_symbol2scm ("outputscale")));
}
-
-
-Paper_outputter*
-Paper_def::get_paper_outputter (String outname) const
+SCM
+get_font_table (Output_def *def)
{
- progress_indication (_f ("paper output to `%s'...",
- outname == "-" ? String ("<stdout>") : outname));
-
- global_input_file->target_strings_.push (outname);
- Paper_outputter * po = new Paper_outputter (outname);
- Path p = split_path (outname);
- p.ext = "";
- po->basename_ = p.to_string ();
- return po;
+ SCM font_table = def->lookup_variable (ly_symbol2scm ("scaled-fonts"));
+ if (scm_hash_table_p (font_table) != SCM_BOOL_T)
+ {
+ font_table = scm_c_make_hash_table (11);
+ def->set_variable (ly_symbol2scm ("scaled-fonts"), font_table);
+ }
+ return font_table;
}
+
-/*
- 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 font_encoding, SCM input_encoding)
{
- SCM key = gh_cons (fn, gh_double2scm (m));
- SCM met = scm_assoc (key, scaled_fonts_);
-
- if (gh_pair_p (met))
- return unsmob_metrics (ly_cdr (met));
-
- /*
- Hmm. We're chaining font - metrics. Should consider wether to merge
- virtual-font and scaled_font.
- */
- Font_metric* f=0;
- if (gh_list_p (fn))
+ if (mod->parent_)
+ return find_scaled_font (mod->parent_, f, m, font_encoding, input_encoding);
+
+ 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)
{
- f = new Virtual_font_metric (fn, m, this); // TODO: GC protection.
-
- scaled_fonts_ = scm_acons (key, f->self_scm (), scaled_fonts_);
- scm_gc_unprotect_object (f->self_scm ());
+ SCM met = scm_assoc (scm_make_real (lookup_mag), sizes);
+ if (scm_is_pair (met))
+ return unsmob_metrics (scm_cdr (met));
}
else
- {
- SCM scale_var = ly_module_lookup (scope_, ly_symbol2scm ("outputscale"));
-
- m /= gh_scm2double (scm_variable_ref (scale_var));
-
- f = all_fonts_global->find_font (ly_scm2string (fn));
- SCM val = Scaled_font_metric::make_scaled_font_metric (f, m);
- scaled_fonts_ = scm_acons (key, val, scaled_fonts_);
- f = unsmob_metrics (val);
- scm_gc_unprotect_object (val);
- }
-
- return f;
+ sizes = SCM_EOL;
+
+ SCM val = Modified_font_metric::make_scaled_font_metric (f, lookup_mag,
+ font_encoding,
+ input_encoding);
+
+ 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 l = SCM_EOL;
- for (SCM s = scaled_fonts_; gh_pair_p (s); s = ly_cdr (s))
- {
- SCM desc = ly_caar (s);
- if (!gh_string_p (gh_car (desc)))
- continue ;
-
- SCM mdesc = unsmob_metrics (ly_cdar (s))->description_;
+ 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);
- l = gh_cons (gh_cons (mdesc, desc), 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");
+
+ SCM ell = SCM_EOL;
+ if (scm_hash_table_p (font_table) == SCM_BOOL_T)
+ {
+ SCM func = ly_lily_module_constant ("hash-table->alist");
+
+ 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)
+ || dynamic_cast<Pango_font*> (fm))
+ ell = scm_cons (fm->self_scm (), ell);
+ }
+ }
+ }
+ return ell;
+}
projects / lilypond.git / blobdiff