4226IsPixelBased = mustDisableVirtualization || (scrollUnit == ScrollUnit.Pixel);

139double newOffset = (IsPixelBased || isHorizontal) 159double newOffset = (IsPixelBased || isHorizontal) 179double newOffset = (IsPixelBased || !isHorizontal) 199double newOffset = (IsPixelBased || !isHorizontal) 219double newOffset = (IsPixelBased || isHorizontal) 239double newOffset = (IsPixelBased || isHorizontal) 259double newOffset = (IsPixelBased || !isHorizontal) 279double newOffset = (IsPixelBased || !isHorizontal) 302double newOffset = (IsPixelBased || isHorizontal) 330double newOffset = (IsPixelBased || isHorizontal) 355double newOffset = (IsPixelBased || !isHorizontal) 375double newOffset = (IsPixelBased || !isHorizontal) 402Debug.Assert(!IsPixelBased && IsScrolling && 522if (!IsPixelBased) 540if (!setAnchorInformation && !IsPixelBased) 564else if (!IsPixelBased) 650if (!IsPixelBased) 668if (!setAnchorInformation && !IsPixelBased) 692else if (!IsPixelBased) 898if (!IsPixelBased) 1142Debug.Assert(!IsPixelBased || !findTopContainer, "find 'top' container only makes sense when item-scrolling"); 1208if (!IsPixelBased) 1283if (IsPixelBased) 1324else if (!IsPixelBased) 1518if (IsPixelBased) 1566else if (!IsPixelBased) 2242IsPixelBased || isVSP45Compat, 2796!IsPixelBased && 2988if (!IsPixelBased && 3355IsPixelBased || IsVSP45Compat, 3788isVSP45Compat || IsPixelBased, 3897if (IsPixelBased) 4225bool oldIsPixelBased = IsPixelBased; 4229if (!HasMeasured || oldIsPixelBased != IsPixelBased) 4322if (IsPixelBased) 4737if (IsPixelBased) 4747if (IsPixelBased) 4853if (IsPixelBased) 4863if (IsPixelBased) 4970if (!IsPixelBased && isHorizontal && DoubleUtil.IsZero(viewport.Width) && DoubleUtil.AreClose(viewport.X, extent.Width)) 4979if (!IsPixelBased && !isHorizontal && DoubleUtil.IsZero(viewport.Height) && DoubleUtil.AreClose(viewport.Y, extent.Height)) 5050viewport.X -= IsPixelBased ? pixelSize.Width : logicalSize.Width; 5058if (IsPixelBased && DoubleUtil.GreaterThan(pixelSize.Width, parentViewport.X)) 5149viewport.Y -= IsPixelBased ? pixelSize.Height : logicalSize.Height; 5157if (IsPixelBased && DoubleUtil.GreaterThan(pixelSize.Height, parentViewport.Y)) 5271viewport.X -= IsPixelBased ? inset.Left : isHeaderBeforeItems ? 1 : 0; 5275viewport.Y -= IsPixelBased ? inset.Top : isHeaderBeforeItems ? 1 : 0; 5292if (IsPixelBased && DoubleUtil.GreaterThan(0, viewport.X)) 5395if (IsPixelBased && DoubleUtil.GreaterThan(0, viewport.Y)) 5777if (!IsPixelBased) 5805if (IsPixelBased) 5901if (!(IsPixelBased || IsVSP45Compat)) 6046containerSize.Height = IsPixelBased ? DesiredSize.Height : 1; 6051containerSize.Width = IsPixelBased ? DesiredSize.Width : 1; 6076containerSize.Height = IsPixelBased ? DesiredSize.Height : 1; 6081containerSize.Width = IsPixelBased ? DesiredSize.Width : 1; 6114if (IsPixelBased) 6153containerSize.Height = IsPixelBased ? pixelHeight : 1; 6163containerSize.Width = IsPixelBased ? pixelWidth : 1; 6267bool ignoreContainerPixelSize = IsPixelBased || (IsScrolling && !hasVirtualizingChildren); 6291if (IsPixelBased) 6700childViewport.X = (IsPixelBased ? stackPixelSizeInCacheBeforeViewport.Width : stackLogicalSizeInCacheBeforeViewport.Width) + containerSize.Width; 6706(IsPixelBased ? stackPixelSizeInViewport.Width + stackPixelSizeInCacheAfterViewport.Width : 6745childViewport.Y = (IsPixelBased ? stackPixelSizeInCacheBeforeViewport.Height : stackLogicalSizeInCacheBeforeViewport.Height) + containerSize.Height; 6751(IsPixelBased ? stackPixelSizeInViewport.Height + stackPixelSizeInCacheAfterViewport.Height : 6896if (IsPixelBased && 7118adjustedChildViewport.X -= IsPixelBased ? frontPixelSize.Width + itemDesiredSizes.PixelSize.Width 7124adjustedChildViewport.Y -= IsPixelBased ? frontPixelSize.Height + itemDesiredSizes.PixelSize.Height 7197if (IsPixelBased) 7289if (IsPixelBased) 7469if (IsPixelBased) 7482if (IsPixelBased) 7554if (IsPixelBased) 7637if (IsPixelBased) 7653if (IsPixelBased) 7669&& (IsPixelBased || DoubleUtil.AreClose(childPixelSize.Width, uniformOrAverageContainerPixelSize)); 7674&& (IsPixelBased || DoubleUtil.AreClose(childPixelSize.Height, uniformOrAverageContainerPixelSize)); 7687if (IsPixelBased) 7734if (IsPixelBased) 7790if (IsPixelBased) 7925IsPixelBased || IsVSP45Compat, 8002uniformOrAverageContainerSize = IsPixelBased ? uniformOrAverageContainerPixelSize : 1.0; 8034if (IsPixelBased || IsVSP45Compat) 8354IsPixelBased ? childPixelSize : childLogicalSize, 8367IsPixelBased ? childPixelSize : childLogicalSize, 8405if (!IsPixelBased) 8429if (IsPixelBased) 8462if (!IsPixelBased && virtualizingChild != null && IsVSP45Compat) 8494if (!IsPixelBased && virtualizingChild != null && IsVSP45Compat) 8592if (IsPixelBased) 8645if (IsPixelBased) 9597if (IsPixelBased) 9698stackPixelSize.Width = IsPixelBased || DoubleUtil.AreClose(computedViewportOffset.X, 0) ? 9703stackPixelSize.Height = IsPixelBased || DoubleUtil.AreClose(computedViewportOffset.Y, 0) ? 9708if (!IsPixelBased) 9935if (!IsPixelBased && lastPageSafeOffset.HasValue && !DoubleUtil.AreClose((double)lastPageSafeOffset, computedViewportOffset.X)) 9950if (!IsPixelBased) 10052if (IsPixelBased) 10152if (!IsPixelBased && lastPageSafeOffset.HasValue && !DoubleUtil.AreClose((double)lastPageSafeOffset, computedViewportOffset.Y)) 10167if (!IsPixelBased) 10269if (IsPixelBased) 10446if (IsPixelBased) 10547stackPixelSize.Width = IsPixelBased || DoubleUtil.AreClose(computedViewportOffset.X, 0) ? 10552stackPixelSize.Height = IsPixelBased || DoubleUtil.AreClose(computedViewportOffset.Y, 0) ? 10557if (!IsPixelBased) 10636if (!IsPixelBased) 10723if (IsPixelBased) 10751if (!IsPixelBased && lastPageSafeOffset.HasValue && !DoubleUtil.AreClose((double)lastPageSafeOffset, computedViewportOffset.X)) 10767if (!IsPixelBased) 10854if (IsPixelBased) 10882if (!IsPixelBased && lastPageSafeOffset.HasValue && !DoubleUtil.AreClose((double)lastPageSafeOffset, computedViewportOffset.Y)) 11043if (IsPixelBased)