slider: initialize dragged diff to 0

Fixes undefined behavior on first drag of a slider.
2020-06-16 02:51:35 +10:00
parent 2e3072623a
commit 41fc50f412
1 changed files with 1 additions and 0 deletions
@@ -36,6 +36,7 @@ SliderBase::SliderBase(Mode mode, QWidget *parent) :
  has_min_(false),
  has_max_(false),
  mode_(mode),
+  dragged_diff_(0),
  require_valid_input_(true),
  tristate_(false),
  drag_ladder_(nullptr),