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music-output-def.hh -- declare Output_def
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source file of the GNU LilyPond music typesetter
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(c) 1997--2006 Han-Wen Nienhuys <hanwen@xs4all.nl>
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#ifndef MUSIC_OUTPUT_DEF_HH
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#define MUSIC_OUTPUT_DEF_HH
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#include "std-string.hh"
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#include "lily-proto.hh"
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#include "virtual-methods.hh"
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Output settings for a block of music.
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This devolved into a rather empty class. The distinction between
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various instances is made in the parser, which creates
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midi/layout/paper blocks depending on the keyword read.
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The data structure is set up as recursive: the definitions not
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supplied in layout are looked up in paper. This is done through
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the parent_ field of Output_def. However, such nesting is limited to
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* first because the parser hard-codes the different types
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* Second, because the prime benefit of multiple levels
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(eg. paper containing layout for a score, containing layout of a
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\score embedded in \markup) requires scaling the Stencils (eg. the
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one coming from score at markup level)
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VIRTUAL_COPY_CONSTRUCTOR (Output_def, Output_def);
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DECLARE_SMOBS (Output_def, );
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Lily_parser *get_parser () const;
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Output_def (Output_def const&);
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SCM c_variable (string id) const;
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SCM lookup_variable (SCM sym) const;
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void set_variable (SCM sym, SCM val);
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Real get_dimension (SCM symbol) const;
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SCM get_font_table (Output_def *def);
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void assign_context_def (Output_def *m, SCM transdef);
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SCM find_context_def (Output_def const *m, SCM name);
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int get_tempo (Output_def*def, Moment moment);
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void set_tempo (Output_def*def, Moment moment, int count_per_minute_i);
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Interval line_dimensions_int (Output_def*def, int);
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Font_metric *select_encoded_font (Output_def *layout, SCM chain);
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Font_metric *select_font (Output_def *layout, SCM chain);
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DECLARE_UNSMOB (Output_def, output_def);
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Font_metric* find_pango_font (Output_def *layout, SCM descr, Real factor);
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Font_metric *find_scaled_font (Output_def *od, Font_metric *f, Real magnification);
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Output_def *scale_output_def (Output_def *def, Real scale);
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Real output_scale (Output_def*);
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#endif /* MUSIC_OUTPUT_DEF_HH */