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push2: correct knob origin translation for drawing

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This commit is contained in:
Paul Davis 2016-09-25 18:28:32 -05:00
parent df5bb70616
commit a5e112a73f
1 changed files with 6 additions and 2 deletions
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8
libs/surfaces/push2/knob.cc
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@ -111,7 +111,11 @@ Push2Knob::render (Rect const & area, Cairo::RefPtr<Cairo::Context> context) con
float value_x = cos (value_angle);
float value_y = sin (value_angle);
context->translate (_position.x, _position.y); //after this, everything is based on the center of the knob
/* translate so that all coordinates are based on the center of the
* knob (which is also its position()
*/
Duple origin = item_to_window (Duple (0, 0));
context->translate (origin.x, origin.y);
context->begin_new_path ();
float center_radius = 0.48*scale;
@ -134,7 +138,6 @@ Push2Knob::render (Rect const & area, Cairo::RefPtr<Cairo::Context> context) con
context->arc (0, 0, progress_radius, start_angle, end_angle);
context->stroke ();
double red_start, green_start, blue_start, astart;
double red_end, green_end, blue_end, aend;
@ -318,6 +321,7 @@ Push2Knob::controllable_changed ()
case ARDOUR::GainAutomation:
case ARDOUR::BusSendLevel:
case ARDOUR::TrimAutomation:
set_gain_text (_val);
break;