source file of the GNU LilyPond music typesetter
- (c) 1997--2000 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+ (c) 1997--2004 Han-Wen Nienhuys <hanwen@cs.uu.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 "debug.hh"
-#include "lookup.hh"
+#include "warn.hh"
+#include "scaled-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 ()
-{
- lookup_alist_ = SCM_EOL;
-}
+#include "scm-hash.hh"
+#include "input-file-results.hh" // urg? header_global
+#include "paper-outputter.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 ()
+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)
{
- SCM n = SCM_EOL;
- for (SCM s = src.lookup_alist_; gh_pair_p(s); s = gh_cdr (s))
- {
- n = scm_acons (gh_caar(s), gh_cdar (s), n);
- }
-
- lookup_alist_ = n;
+ /* Do not remove this statement, scm_make_hash_table may trigger GC. */
+ scaled_fonts_ = SCM_EOL;
+ scaled_fonts_ = scm_c_make_hash_table (11);
}
-
-Real
-Paper_def::get_var (String s) const
+Paper_def::~Paper_def ()
{
- return get_realvar (ly_symbol2scm (s.ch_C()));
}
-SCM
-Paper_def::get_scmvar (String s) const
+void
+Paper_def::derived_mark ()
{
- return scope_p_->scm_elem (ly_symbol2scm (s.ch_C()));
+ scm_gc_mark (scaled_fonts_);
}
Real
-Paper_def::get_realvar (SCM s) const
+Paper_def::get_dimension (SCM s) const
{
- SCM val ;
- if (!scope_p_->try_retrieve (s, &val))
- {
- programming_error ("unknown paper variable: " + ly_symbol2string (s));
- return 0.0;
- }
-
- if (gh_number_p (val))
- {
- return gh_scm2double (val);
- }
- else
- {
- programming_error ("not a real variable");
- return 0.0;
- }
+ SCM val = lookup_variable (s);
+ SCM scale = lookup_variable (ly_symbol2scm ("outputscale"));
+
+ Real sc = ly_scm2double (scale);
+ return ly_scm2double (val) / sc;
}
-/*
- FIXME. This is broken until we have a generic way of
- putting lists inside the \paper block.
- */
+/* 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");
+ Real lw = get_dimension (ly_symbol2scm ("linewidth"));
+ Real ind = n? 0.0:get_dimension (ly_symbol2scm ("indent"));
return Interval (ind, lw);
}
-void
-Paper_def::set_lookup (int i, SCM l)
+Paper_outputter*
+Paper_def::get_paper_outputter (String outname) const
{
- assert (unsmob_lookup (l));
- lookup_alist_ = scm_assq_set_x(lookup_alist_, gh_int2scm (i), l);
-}
+ progress_indication (_f ("paper output to `%s'...",
+ outname == "-" ? String ("<stdout>") : outname));
-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));
+ // fixme: dependencies
+ // add_target_file (outname);
+
+ Paper_outputter * po = new Paper_outputter (outname);
+ Path p = split_path (outname);
+ p.ext = "";
+ po->basename_ = p.to_string ();
+ return po;
}
-int Paper_def::default_count_i_ = 0;
-
-int
-Paper_def::get_next_default_count () const
+Font_metric*
+Paper_def::find_scaled_font (Font_metric *f, Real m, SCM input_enc_name)
{
- return default_count_i_ ++;
-}
+ SCM sizes = scm_hashq_ref (scaled_fonts_, f->self_scm (), SCM_BOOL_F);
+ if (sizes != SCM_BOOL_F)
+ {
+ SCM met = scm_assoc (scm_make_real (m), sizes);
+ if (is_pair (met))
+ return unsmob_metrics (ly_cdr (met));
+ }
+ else
+ sizes = SCM_EOL;
+
+ /* Hmm. We're chaining font - metrics. Should consider whether to
+ merge virtual-font and scaled_font. */
+ SCM val = SCM_EOL;
+ if (Virtual_font_metric * vf = dynamic_cast<Virtual_font_metric*> (f))
+ {
+ /* 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)) */
+ SCM lst = SCM_EOL;
+ SCM *t = &lst;
+ for (SCM s = vf->get_font_list (); is_pair (s); s = ly_cdr (s))
+ {
+ Font_metric *scaled = find_scaled_font (unsmob_metrics (ly_car (s)),
+ m, input_enc_name);
+ *t = scm_cons (scaled->self_scm (), SCM_EOL);
+ 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 (!is_symbol (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);
+ }
-void
-Paper_def::reset_default_count()
-{
- default_count_i_ = 0;
+ sizes = scm_acons (scm_make_real (m), val, sizes);
+ scm_gc_unprotect_object (val);
+ scm_hashq_set_x (scaled_fonts_, f->self_scm (), sizes);
+ return unsmob_metrics (val);
}
-Paper_stream*
-Paper_def::paper_stream_p () const
+/* Return alist to translate internally used fonts back to real-world
+ coordinates. */
+SCM
+Paper_def::font_descriptions () const
{
- String outname = base_output_str ();
+ SCM func = ly_scheme_function ("hash-table->alist");
- 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);
+ SCM l = SCM_EOL;
+ for (SCM s = scm_call_1 (func, scaled_fonts_); is_pair (s); s = ly_cdr (s))
+ {
+ SCM entry = ly_car (s);
+ for (SCM t = ly_cdr (entry); is_pair (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;
}
-
-String
-Paper_def::base_output_str () const
+Paper_def*
+unsmob_paper (SCM x)
{
- 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;
+ return dynamic_cast<Paper_def*> (unsmob_music_output_def (x));
}
+
+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));
+ bool pap = op;
+ return ly_bool2scm (pap);
+}
projects / lilypond.git / blobdiff