protected override void OnUnloaded(ComponentThemableElementTree oldTree)
{
base.OnUnloaded(oldTree);
this.itemToEnsureVisible = (RadPageViewItem)null;
this.layoutInfo = (StripViewLayoutInfo)null;
this.scrollAnimation.Stop((RadObject)this);
}
protected override void OnUnloaded(ComponentThemableElementTree oldTree)
{
base.OnUnloaded(oldTree);
this.itemToEnsureVisible = null;
this.layoutInfo = null;
this.scrollAnimation.Stop(this);
}
protected override SizeF MeasureOverride(SizeF availableSize)
{
float prevItemLength = -1;
if (this.layoutInfo != null)
{
prevItemLength = this.layoutInfo.layoutLength;
}
this.layoutInfo = null;
if (availableSize.Width <= 0 || availableSize.Height <= 0)
{
this.ResetScrollOffset();
return(SizeF.Empty);
}
this.layoutInfo = new StripViewLayoutInfo(this, availableSize);
if (this.layoutInfo.itemCount == 0)
{
this.ResetScrollOffset();
return(SizeF.Empty);
}
this.ApplyItemSizeMode();
this.ApplyItemFitMode();
if (this.layoutInfo == null)
{
return(SizeF.Empty);
}
this.MeasureItems();
this.UpdateScrollOffset(prevItemLength, availableSize);
SizeF measured = this.layoutInfo.measuredSize;
//apply padding and border
measured = this.ApplyClientOffset(measured);
//consider min/max size
return(this.ApplyMinMaxSize(measured));
}
protected override SizeF MeasureOverride(SizeF availableSize)
{
float prevItemLength = -1f;
if (this.layoutInfo != null)
{
prevItemLength = this.layoutInfo.layoutLength;
}
this.layoutInfo = (StripViewLayoutInfo)null;
if ((double)availableSize.Width <= 0.0 || (double)availableSize.Height <= 0.0)
{
this.ResetScrollOffset();
return(SizeF.Empty);
}
this.layoutInfo = new StripViewLayoutInfo((LightVisualElement)this, availableSize);
if (this.layoutInfo.itemCount == 0)
{
this.ResetScrollOffset();
return(SizeF.Empty);
}
this.ApplyItemSizeMode();
this.ApplyItemFitMode();
if (this.layoutInfo == null)
{
return(SizeF.Empty);
}
if (this.layoutInfo.fitMode == StripViewItemFitMode.MultiLine)
{
this.MeasureItemsInMultiLine(availableSize);
}
else
{
this.MeasureItems();
}
this.UpdateScrollOffset(prevItemLength, availableSize);
return(this.ApplyMinMaxSize(this.ApplyClientOffset(this.layoutInfo.measuredSize)));
}
public StripViewItemShrinkStrategy(StripViewLayoutInfo sizeInfo)
{
this.layoutInfo = sizeInfo;
this.shrinkInfo = new StripViewItemShrinkStrategy.StripViewShrinkInfo();
}
public StripViewItemExpandStrategy(StripViewLayoutInfo info)
{
this.layoutInfo = info;
this.expandInfo = new ExpandInfo();
}