source file of the GNU LilyPond music typesetter
- (c) 2000 Jan Nieuwenhuizen <janneke@gnu.org>
+ (c) 2000--2006 Jan Nieuwenhuizen <janneke@gnu.org>
*/
#include "performer.hh"
-#include "event.hh"
#include "audio-item.hh"
+#include "music.hh"
+#include "translator.icc"
/*
TODO:
- handle multiple events
- */
-/**
- perform absolute (text) dynamics
- */
+ handle multiple events
+
+ perform absolute (text) dynamics
+*/
class Dynamic_performer : public Performer
{
public:
- TRANSLATOR_DECLARATIONS(Dynamic_performer);
+ TRANSLATOR_DECLARATIONS (Dynamic_performer);
protected:
- virtual bool try_music (Music* req);
- virtual void stop_translation_timestep ();
- virtual void create_audio_elements ();
+ virtual bool try_music (Music *event);
+ void stop_translation_timestep ();
+ void process_music ();
private:
- Music* script_req_;
- Audio_dynamic* audio_;
+ Music *script_event_;
+ Audio_dynamic *audio_;
};
-
-
Dynamic_performer::Dynamic_performer ()
{
- script_req_ = 0;
+ script_event_ = 0;
audio_ = 0;
}
void
-Dynamic_performer::create_audio_elements ()
+Dynamic_performer::process_music ()
{
- if (script_req_)
+ if (script_event_)
{
SCM proc = get_property ("dynamicAbsoluteVolumeFunction");
- SCM svolume = SCM_EOL;
- if (gh_procedure_p (proc))
+ SCM svolume = SCM_EOL;
+ if (ly_is_procedure (proc))
{
// urg
- svolume = gh_call1 (proc, script_req_->get_mus_property ("text"));
+ svolume = scm_call_1 (proc, script_event_->get_property ("text"));
}
- Real volume = 0.5;
- if (gh_number_p (svolume))
- volume = gh_scm2double (svolume);
+ Real volume = robust_scm2double (svolume, 0.5);
/*
properties override default equaliser setting
- */
+ */
SCM min = get_property ("midiMinimumVolume");
SCM max = get_property ("midiMaximumVolume");
- if (gh_number_p (min) || gh_number_p (max))
+ if (scm_is_number (min) || scm_is_number (max))
{
Interval iv (0, 1);
- if (gh_number_p (min))
- iv[MIN] = gh_scm2double (min);
- if (gh_number_p (max))
- iv[MAX] = gh_scm2double (max);
+ if (scm_is_number (min))
+ iv[MIN] = scm_to_double (min);
+ if (scm_is_number (max))
+ iv[MAX] = scm_to_double (max);
volume = iv[MIN] + iv.length () * volume;
}
else
urg, code duplication:: staff_performer
*/
SCM s = get_property ("midiInstrument");
-
- if (!gh_string_p (s))
+
+ if (!scm_is_string (s))
s = get_property ("instrument");
-
- if (!gh_string_p (s))
+
+ if (!scm_is_string (s))
s = scm_makfrom0str ("piano");
-
-
+
SCM eq = get_property ("instrumentEqualizer");
- if (gh_procedure_p (eq))
- {
- s = gh_call1 (eq, s);
- }
+ if (ly_is_procedure (eq))
+ s = scm_call_1 (eq, s);
- if (gh_pair_p (s))
+ if (is_number_pair (s))
{
- Interval iv;
- iv[MIN] = gh_scm2double (ly_car (s));
- iv[MAX] = gh_scm2double (ly_cdr (s));
+ Interval iv = ly_scm2interval (s);
volume = iv[MIN] + iv.length () * volume;
}
}
-
+
audio_ = new Audio_dynamic (volume);
- Audio_element_info info (audio_, script_req_);
+ Audio_element_info info (audio_, script_event_);
announce_element (info);
- script_req_ = 0;
+ script_event_ = 0;
}
}
}
bool
-Dynamic_performer::try_music (Music* r)
+Dynamic_performer::try_music (Music *r)
{
- if (!script_req_)
+ if (!script_event_)
{
- if (r->is_mus_type ("dynamic-event")) // fixme.
+ if (r->is_mus_type ("absolute-dynamic-event")) // fixme.
{
- script_req_ = r;
+ script_event_ = r;
return true;
}
}
return false;
}
-ENTER_DESCRIPTION(Dynamic_performer,
- /*descr*/ "",
- /* creats*/ "",
- /* accepts */ "note-column-interface script-interface",
- /* acks */ "",
- /*reads */"dynamicAbsoluteVolumeFunction midiMaximumVolume midiMinimumVolume midiInstrument instrumentEqualizer",
- /*writes*/"");
+ADD_TRANSLATOR (Dynamic_performer,
+ /* doc */ "",
+ /* create */ "",
+ /* accept */ "absolute-dynamic-event",
+ /* read */ "dynamicAbsoluteVolumeFunction midiMaximumVolume midiMinimumVolume midiInstrument instrumentEqualizer",
+ /*writes*/"");