private void TrackResizePreview(SplitterGrip grip, double horizontalChange, double verticalChange)
{
int gripIndex;
int resizeIndex1;
int resizeIndex2;
if (!this.GetResizeIndices(grip, out gripIndex, out resizeIndex1, out resizeIndex2))
{
return;
}
double pixelAmount = this.Orientation == Orientation.Horizontal ? horizontalChange : verticalChange;
IList <SplitterMeasureData> splitterMeasureDataList = SplitterMeasureData.FromElements((IList)this.InternalChildren);
this.ResizeChildrenCore(splitterMeasureDataList[resizeIndex1], splitterMeasureDataList[resizeIndex2], pixelAmount);
SplitterPanel.Measure(this.RenderSize, this.Orientation, (IEnumerable <SplitterMeasureData>)splitterMeasureDataList, false);
Point point = grip.TransformToAncestor((Visual)this).Transform(new Point(0.0, 0.0));
if (this.Orientation == Orientation.Horizontal)
{
point.X += splitterMeasureDataList[gripIndex].MeasuredBounds.Width - this.InternalChildren[gripIndex].RenderSize.Width;
}
else
{
point.Y += splitterMeasureDataList[gripIndex].MeasuredBounds.Height - this.InternalChildren[gripIndex].RenderSize.Height;
}
Point screen = this.PointToScreen(point);
this.currentPreviewWindow.Move((double)(int)screen.X, (double)(int)screen.Y);
}
protected override Size MeasureOverride(Size availableSize)
{
this.UpdateIndices();
return(SplitterPanel.Measure(availableSize, this.Orientation, (IEnumerable <SplitterMeasureData>)SplitterMeasureData.FromElements((IList)this.InternalChildren), true));
}