private static Vector2 CalculateVisibleAnchoredPosition(ScrollRect sr, RectTransform contentRtx, Vector3 childWorldPos, Vector2 childSize, Vector2 childPivot, Rect viewRect)
{
if ((sr.horizontal && sr.vertical) || (!sr.horizontal && !sr.vertical))
{
MfLog.Error(LC.Trace, "Tried to scroll to a child on a ScrollRect that can scroll both horizontal and "
+ "vertical!");
return(contentRtx.anchoredPosition);
}
LayoutRebuilder.ForceRebuildLayoutImmediate((RectTransform)sr.transform);
if (sr.horizontal)
{
// This will not work when invoked during an Awake()
float xDist = sr.ChildPosInContentRect(childWorldPos).x;
float targetXPosLeft = xDist
+ (childSize.x * childPivot.x) // Add the influence of a pivot on child if one present
- (contentRtx.rect.width * contentRtx.pivot.x) // Subtract the influence of the content's pivot and the anchor of the parent rects
- (((RectTransform)contentRtx.parent.transform).rect.width * contentRtx.anchorMin.x)
+ viewRect.x;
float targetXPosRight = targetXPosLeft + viewRect.width - childSize.x;
return(sr.GetClosestContentAnchoredPositionBounded(new Vector2(targetXPosLeft, sr.content.anchoredPosition.y), new Vector2(targetXPosRight, sr.content.anchoredPosition.y)));
}
else
{
float yDist = sr.ChildPosInContentRect(childWorldPos).y;
float targetYPosTop = yDist
- (childSize.y * (1.0f - childPivot.y)) // Subtract the influence of a pivot on child if one present
+ (contentRtx.rect.height * (1.0f - contentRtx.pivot.y)) // Add the influence of the content's pivot and the anchor of the parent rects
+ (((RectTransform)contentRtx.parent.transform).rect.height * (1.0f - contentRtx.anchorMin.y))
- viewRect.y;
float targetYPosBottom = targetYPosTop - viewRect.height + childSize.y;
return(sr.GetClosestContentAnchoredPositionBounded(new Vector2(sr.content.anchoredPosition.x, targetYPosTop), new Vector2(sr.content.anchoredPosition.x, targetYPosBottom)));
}
}
