interface range generated by internal_to_interface() may not span 0..1, so remove...

diff --git a/gtk2_ardour/automation_controller.cc b/gtk2_ardour/automation_controller.cc
index 63c69739229041e986318d4835dff73453ace6ee..6bd40a527cd069c00d317b5f92b4d9acba387877 100644 (file)
--- a/gtk2_ardour/automation_controller.cc
+++ b/gtk2_ardour/automation_controller.cc
@@ -147,16 +147,16 @@ AutomationController::create(const Evoral::Parameter&             param,
                              bool use_knob)
 {
        const double lo        = ac->internal_to_interface(desc.lower, true);
-       const double up        = ac->internal_to_interface(desc.upper, true);
        const double normal    = ac->internal_to_interface(desc.normal, true);
        const double smallstep = fabs (ac->internal_to_interface(desc.lower + desc.smallstep, true) - lo);
        const double largestep = fabs (ac->internal_to_interface(desc.lower + desc.largestep, true) - lo);
 
-       assert (std::min(lo, up) == 0);
-       assert (std::max(lo, up) == 1.0);
+       /* even though internal_to_interface() may not generate the full range
+        * 0..1, the interface range is 0..1 by definition,  so just hard code
+        * that.
+        */
 
-       Gtk::Adjustment* adjustment = manage (
-               new Gtk::Adjustment (normal, std::min(lo, up), std::max(lo, up), smallstep, largestep));
+       Gtk::Adjustment* adjustment = manage (new Gtk::Adjustment (normal, 0.0, 1.0, smallstep, largestep));
 
        assert (ac);
        assert(ac->parameter() == param);