public virtual void OnBeginDrag(PointerEventData eventData)
{
base.OnBeginDrag(eventData);
this.isDragging = true;
this.mState = ScrollAutoFit.State.Dragging;
this.OnScrollBegin.Invoke();
}
public void SetScrollToHorizontal(float pos)
{
this.mForceScroll = true;
this.mStartPos = (float)this.get_content().get_anchoredPosition().x;
this.mEndPos = pos;
this.mScrollAnimTime = 0.0f;
this.mState = ScrollAutoFit.State.Scrolling;
}
public virtual void OnEndDrag(PointerEventData eventData)
{
base.OnEndDrag(eventData);
this.isDragging = false;
if (this.mForceScroll || (double) this.ItemScale == 0.0 || !this.UseAutoFit)
return;
this.mState = ScrollAutoFit.State.DragEnd;
}
public override void OnBeginDrag(PointerEventData eventData)
{
this.mStartIdx = this.GetCurrent();
base.OnBeginDrag(eventData);
this.isDragging = true;
this.mState = ScrollAutoFit.State.Dragging;
this.OnScrollBegin.Invoke();
}
private void UpdateWait()
{
if (!this.IsScrollNow || this.isDragging || this.mForceScroll)
return;
this.OnScrollBegin.Invoke();
if ((double) this.ItemScale == 0.0 || !this.UseAutoFit)
return;
this.mState = ScrollAutoFit.State.DragEnd;
}
private void Update()
{
if (!this.UseAutoFit)
{
return;
}
switch (this.mState)
{
case ScrollAutoFit.State.DragEnd:
if (!this.isDragging && (double)Mathf.Abs(!this.IsHorizontal ? (float)this.get_velocity().y : (float)this.get_velocity().x) < (double)this.ItemScale)
{
this.SetScrollTo((float)Mathf.RoundToInt((!this.IsHorizontal ? (float)this.get_content().get_anchoredPosition().y : (float)this.get_content().get_anchoredPosition().x) / this.ItemScale) * this.ItemScale);
break;
}
break;
case ScrollAutoFit.State.Scrolling:
if ((double)this.mScrollAnimTime >= 0.0)
{
this.mScrollAnimTime += Time.get_deltaTime();
float num = (double)this.FitTime <= 0.0 ? 1f : Mathf.Sin((float)((double)Mathf.Clamp01(this.mScrollAnimTime / this.FitTime) * 3.14159274101257 * 0.5));
Vector2 anchoredPosition = this.get_content().get_anchoredPosition();
if (this.IsHorizontal)
{
anchoredPosition.x = (__Null)(double)Mathf.Lerp(this.mStartPos, this.mEndPos, num);
}
else
{
anchoredPosition.y = (__Null)(double)Mathf.Lerp(this.mStartPos, this.mEndPos, num);
}
this.get_content().set_anchoredPosition(anchoredPosition);
if ((double)num >= 1.0)
{
this.mScrollAnimTime = -1f;
this.mState = ScrollAutoFit.State.Wait;
this.OnScrollStop.Invoke();
this.StopMovement();
break;
}
break;
}
break;
}
this.mForceScroll = false;
}
private void Update()
{
if (!this.UseAutoFit)
return;
switch (this.mState)
{
case ScrollAutoFit.State.Wait:
this.UpdateWait();
break;
case ScrollAutoFit.State.Dragging:
this.MoveContentRange();
break;
case ScrollAutoFit.State.DragEnd:
if (!this.isDragging)
{
if (this.HorizontalMode)
{
if ((double) Mathf.Abs((float) this.get_velocity().x) < (double) this.ItemScale)
{
if (this.UseMoveRange)
{
this.SetScrollToHorizontal(this.GetNearIconPos());
break;
}
this.SetScrollToHorizontal((float) this.GetCurrent() * this.ItemScale + this.Offset);
break;
}
if (this.UseMoveRange && this.CheckSetScrollPos())
{
this.MoveContentRange();
this.mScrollAnimTime = -1f;
this.mState = ScrollAutoFit.State.Wait;
this.OnScrollStop.Invoke();
this.StopMovement();
double nearIconPos = (double) this.GetNearIconPos();
break;
}
break;
}
if ((double) Mathf.Abs((float) this.get_velocity().y) < (double) this.ItemScale)
{
this.SetScrollTo((float) Mathf.RoundToInt((float) this.get_content().get_anchoredPosition().y / this.ItemScale) * this.ItemScale + this.Offset);
break;
}
break;
}
break;
case ScrollAutoFit.State.Scrolling:
if ((double) this.mScrollAnimTime >= 0.0)
{
this.mScrollAnimTime += Time.get_deltaTime();
float num = (double) this.FitTime <= 0.0 ? 1f : Mathf.Sin((float) ((double) Mathf.Clamp01(this.mScrollAnimTime / this.FitTime) * 3.14159274101257 * 0.5));
Vector2 anchoredPosition = this.get_content().get_anchoredPosition();
if (this.HorizontalMode)
anchoredPosition.x = (__Null) (double) Mathf.Lerp(this.mStartPos, this.mEndPos, num);
else
anchoredPosition.y = (__Null) (double) Mathf.Lerp(this.mStartPos, this.mEndPos, num);
this.get_content().set_anchoredPosition(anchoredPosition);
if ((double) num >= 1.0)
{
this.mScrollAnimTime = -1f;
this.mState = ScrollAutoFit.State.Wait;
this.OnScrollStop.Invoke();
this.StopMovement();
break;
}
break;
}
break;
}
this.mForceScroll = false;
}
