[ardour-dev] CVS commit - midi feedback

[Jesse Chappell]

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 * Added support for midi parameter feedback.  When enabled, controls
   that are bound to incoming midi events will send out that event
   when modified.  This lets you control generic midi control surface
   with motor faders and/or led encoders (like the incredibly
   affordable Behringer BCF2000, which was used for testing), to match the internal
   state.  Note the extra/changed options in the option editor's midi
   tab. Also note that automation playback does not yet send midi feedback.
  
   Reminder: to bind a fader or bar-control to midi, do a Control-Middle-Click
   on it, then send some midi control.

 * Added generic midi bindability for mute, solo, and rec-enable controls.
   to do it, you can do Control-RIGHT-click on the mute and solo
   buttons (the normal binding click is taken on these buttons for other functions).  
   For the Record-enable button, it is the normal ctrl-middle-click.   
   You can also  pick it from the context menu of the mute button.  A menu
   will be added to other buttons later.

 * fixed some midi prompter dialog issues
 
 * fixed some midi binding state saving issues

 * libardour: 0.828.0   gtk/ardour: 0.530.0

jlc