Method onScrollWheel

snap_drawing/src/snap_drawing/cpp/Layers/ScrollLayer.cpp:186–190

}

void ScrollLayer::onScrollWheel(GestureRecognizerState /*state*/, const WheelScrollEvent& scrollEvent) {
    auto desiredContentOffset = getContentOffset().makeOffset(scrollEvent.direction.dx, scrollEvent.direction.dy);
    auto finalContentOffset = targetOffsetForInteractiveOffset(desiredContentOffset);
    onScrollEnded(finalContentOffset, scrollEvent.direction);
}

Point ScrollLayer::targetOffsetForInteractiveOffset(const Point& interactiveOffset) {
    Scalar targetOffsetX = interactiveOffset.x;