Temporary hack lets us defer encapsulation of track control panel drawing...

... while we can work on encapsulating the click-drag actions.

src/tracks/ui/TrackControls.cpp

@@ -12,6 +12,8 @@ Paul Licameli split from TrackPanel.cpp
 #include "TrackControls.h"
 #include "../../HitTestResult.h"
 
+int TrackControls::gCaptureState;
+
 TrackControls::~TrackControls()
 {
 }

src/tracks/ui/TrackControls.h

@@ -24,6 +24,9 @@ public:
 
    Track *GetTrack() const { return mpTrack; }
 
+   // Make this hack go away!  See TrackPanel::DrawOutside
+   static int gCaptureState;
+
 protected:
    // An override is supplied for derived classes to call through but it is
    // still marked pure virtual