This is to make sure the traces are centered when the view is
first drawn but also properly centered when the final size is
known. This fixes a "jumping" display when opening a new trace
view in addition to an existing one.
const QSize areaSize = viewport_->size();
const QSize areaSize = viewport_->size();
- // Special case: when starting up and the window isn't visible yet,
- // areaSize is [0, 0]. In this case we want to be called again later
- if ((areaSize.height() == 0) || (!size_finalized_)) {
- scroll_needs_defaults_ = true;
- return;
- } else {
- scroll_needs_defaults_ = false;
- }
-
const pair<int, int> extents = v_extents();
const int trace_height = extents.second - extents.first;
const pair<int, int> extents = v_extents();
const int trace_height = extents.second - extents.first;
else
// Put the first trace at the top, letting the bottom ones overflow
set_v_offset(extents.first);
else
// Put the first trace at the top, letting the bottom ones overflow
set_v_offset(extents.first);
+
+ // If we're not sure whether setting the defaults worked as
+ // the window wasn't set up entirely yet, we want to be called
+ // again later to make sure
+ scroll_needs_defaults_ = !size_finalized_;
}
void View::update_layout()
}
void View::update_layout()