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-rw-r--r--gtk2_ardour/automation_time_axis.cc5
1 files changed, 4 insertions, 1 deletions
diff --git a/gtk2_ardour/automation_time_axis.cc b/gtk2_ardour/automation_time_axis.cc
index ba76f68e18..6c67d2f8fe 100644
--- a/gtk2_ardour/automation_time_axis.cc
+++ b/gtk2_ardour/automation_time_axis.cc
@@ -92,7 +92,10 @@ AutomationTimeAxisView::AutomationTimeAxisView (Session* s, boost::shared_ptr<Ro
_base_rect = new SimpleRect(*_canvas_display);
_base_rect->property_x1() = 0.0;
_base_rect->property_y1() = 0.0;
- _base_rect->property_x2() = LONG_MAX - 2;
+ /** gnomecanvas sometimes converts this value to int or adds 2 to it, so it must be
+ set correctly to avoid overflow.
+ */
+ _base_rect->property_x2() = INT_MAX - 2;
_base_rect->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_AutomationTrackOutline.get();
/* outline ends and bottom */