}
}
-float ItemView::ClampFirstItemPosition(float targetPosition, const Vector3& targetSize, ItemLayout& layout)
+float ItemView::ClampFirstItemPosition( float targetPosition, const Vector3& targetSize, ItemLayout& layout, bool updateOvershoot )
{
Actor self = Self();
float minLayoutPosition = layout.GetMinimumLayoutPosition(mItemFactory.GetNumberOfItems(), targetSize);
float clamppedPosition = std::min(0.0f, std::max(minLayoutPosition, targetPosition));
- mScrollOvershoot = targetPosition - clamppedPosition;
self.SetProperty(Toolkit::Scrollable::Property::SCROLL_POSITION_MAX, Vector2(0.0f, -minLayoutPosition));
+ if( updateOvershoot )
+ {
+ mScrollOvershoot = targetPosition - clamppedPosition;
+ }
+
return clamppedPosition;
}
{
Actor self = Self();
- float currentLayoutPosition = ClampFirstItemPosition( GetCurrentLayoutPosition(0), layoutSize, *mActiveLayout );
- float forwardClampedPosition = ClampFirstItemPosition(currentLayoutPosition + 1.0, layoutSize, *mActiveLayout);
- float backwardClampedPosition = ClampFirstItemPosition(currentLayoutPosition - 1.0, layoutSize, *mActiveLayout);
+ float currentLayoutPosition = ClampFirstItemPosition( GetCurrentLayoutPosition(0), layoutSize, *mActiveLayout, false );
+ float forwardClampedPosition = ClampFirstItemPosition( currentLayoutPosition + 1.0, layoutSize, *mActiveLayout, false );
+ float backwardClampedPosition = ClampFirstItemPosition( currentLayoutPosition - 1.0, layoutSize, *mActiveLayout, false );
return (fabs(forwardClampedPosition - backwardClampedPosition) > Math::MACHINE_EPSILON_0);
}
* @param[in] targetPosition The target position of the drag etc.
* @param[in] targetSize The target ItemView & layout size.
* @param[in] layout The current layout.
+ * @param[in] updateOvershoot False stops the current overshoot value from being clamped also.
* @return The clamped first-item position.
*/
- float ClampFirstItemPosition(float targetPosition, const Vector3& targetSize, ItemLayout& layout);
+ float ClampFirstItemPosition(float targetPosition, const Vector3& targetSize, ItemLayout& layout, bool updateOvershoot = true);
/**
* Called upon pan gesture event.