[ardour-dev] CVS commit

[Jesse Chappell]

 * added mouse movement threshold before region drags start. 
  This makes it much less likely to accidentally move a region
  when selecting it.  For example, once you drag horizontally >4 pixels,
  only then will the region start to move from its *current location*.
  Try it, you'll be much less cautious about selecting regions
  after this.

  Right now only region dragging (in object mode) has this behavior.
  Most other operations are dedicated, so a threshold to
  prevent unwanted movement isn't really needed, AFAICT.  But, if anyone
  can think of other ops that you'd like to see a mouse threshold on, let us
  know.

 * fixed up corner dragging offset issues, noticed when trimming
  range selections, cursors, fade-handles, etc.

 * gtk/ardour: 0.556.0

jlc