X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=lily%2Fdynamic-performer.cc;h=71ce23fb7415fd9b39b130aa4655da7a3eb79bac;hb=f68dfcc7aeb65b0b4054edbb2d9861e14d5d533e;hp=e76f07cd62fb66641ad919d00db4699f456a8e16;hpb=baf32731650d510882eeb52d02f4ca0c816c7c29;p=lilypond.git

diff --git a/lily/dynamic-performer.cc b/lily/dynamic-performer.cc
index e76f07cd62..71ce23fb74 100644
--- a/lily/dynamic-performer.cc
+++ b/lily/dynamic-performer.cc
@@ -3,38 +3,33 @@
 
   source file of the GNU LilyPond music typesetter
 
-  (c)  2000 Jan Nieuwenhuizen <janneke@gnu.org>
+  (c) 2000--2005 Jan Nieuwenhuizen <janneke@gnu.org>
 */
 
 #include "performer.hh"
-#include "command-request.hh"
-#include "musical-request.hh"
 #include "audio-item.hh"
 
 /*
   TODO:
-    handle multiple requests
- */
 
-/**
-   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 bool try_music (Music *req);
   virtual void stop_translation_timestep ();
   virtual void create_audio_elements ();
 
 private:
-  Music* script_req_;
-  Audio_dynamic* audio_;
+  Music *script_req_;
+  Audio_dynamic *audio_;
 };
 
-
-
 Dynamic_performer::Dynamic_performer ()
 {
   script_req_ = 0;
@@ -48,29 +43,27 @@ Dynamic_performer::create_audio_elements ()
     {
       SCM proc = get_property ("dynamicAbsoluteVolumeFunction");
 
-      SCM svolume  = SCM_EOL;
-      if (gh_procedure_p (proc))
+      SCM svolume = SCM_EOL;
+      if (ly_c_procedure_p (proc))
 	{
 	  // urg
-	  svolume = gh_call1 (proc, script_req_->get_mus_property ("text"));
+	  svolume = scm_call_1 (proc, script_req_->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
@@ -79,29 +72,26 @@ Dynamic_performer::create_audio_elements ()
 	    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))
+	  if (ly_c_procedure_p (eq))
 	    {
-	      s = gh_call1 (eq, s);
+	      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_);
       announce_element (info);
@@ -120,12 +110,11 @@ Dynamic_performer::stop_translation_timestep ()
 }
 
 bool
-Dynamic_performer::try_music (Music* r)
+Dynamic_performer::try_music (Music *r)
 {
   if (!script_req_)
     {
-      if (dynamic_cast <Text_script_req*> (r)
-	  && r->get_mus_property ("text-type") == ly_symbol2scm ("dynamic"))
+      if (r->is_mus_type ("absolute-dynamic-event")) // fixme.
 	{
 	  script_req_ = r;
 	  return true;
@@ -134,5 +123,10 @@ Dynamic_performer::try_music (Music* r)
   return false;
 }
 
-ENTER_DESCRIPTION(Dynamic_performer,
-		  "","","","dynamicAbsoluteVolumeFunction midiMaximumVolume midiMinimumVolume midiInstrument instrumentEqualizer","");
+ADD_TRANSLATOR (Dynamic_performer,
+		/*descr*/		 "",
+		/* creats*/ "",
+		/* accepts */ "absolute-dynamic-event",
+		/* acks */ "",
+		/*reads */"dynamicAbsoluteVolumeFunction midiMaximumVolume midiMinimumVolume midiInstrument instrumentEqualizer",
+		/*writes*/"");