protected override void UpdateVisualState()
{
FrameworkElement mainElement;
double width = (ActualWidth > 2 ? ActualWidth - 0 : 2);
double height = (ActualHeight > 2 ? ActualHeight - 0 : 2);
double halfHeight;
if (ElementRoot != null)
{
ElementBorder.Width = width;
ElementBorder.Height = height;
halfHeight = height * 0.5;
mainElement = (FrameworkElement)Content;
mainElement.Width = width;
mainElement.Height = height;
ElementClipping.Rect = new Rect(0, 0, width, height);
ElementTop.Width = width;
if (OpenType == RollerOpenType.Scroll)
{
ElementTop.Height = halfHeight;
ElementBottom.Height = halfHeight;
ElementBottom.Width = Width;
if (ElementTop.Content != null)
{
((FrameworkElement)ElementTop.Content).Width = Width;
((FrameworkElement)ElementTop.Content).Height = halfHeight;
}
if (ElementBottom.Content != null)
{
ElementBottom.SetValue(Canvas.TopProperty, halfHeight);
((FrameworkElement)ElementBottom.Content).Width = Width;
((FrameworkElement)ElementBottom.Content).Height = halfHeight;
}
}
else
{
ElementTop.Height = height;
}
}
}
protected override void UpdateVisualState()
{
FrameworkElement right;
base.UpdateVisualState();
if (ElementRoot != null)
{
ElementRight.SetValue(Canvas.LeftProperty, OriginalWidth);
ElementBottom.SetValue(Canvas.TopProperty, (double)ElementButtons.GetValue(Canvas.TopProperty));
if (_expandedWidth >= OriginalWidth)
{
ElementRight.Width = _expandedWidth - OriginalWidth;
}
else
{
ElementRight.Width = 0;
}
ElementRight.Height = Height;
if (ElementRight.Width < 0d)
{
ElementRight.Width = 0d;
}
if (_expandedHeight >= OriginalHeight)
{
ElementBottom.Height = _expandedHeight - OriginalHeight;
}
else
{
ElementBottom.Height = 0;
}
ElementBottom.Width = Width;
if (ElementBottom.Height < 0d)
{
ElementBottom.Height = 0d;
}
if (ContentRight != null)
{
right = (FrameworkElement)ContentRight;
if (_stateRight == State.Normal)
{
right.SetValue(Canvas.LeftProperty, -ElementRight.Width);
}
else
{
right.SetValue(Canvas.LeftProperty, 0d);
}
right.Width = ElementRight.Width;
right.Height = Height;
}
if (ContentBottom != null)
{
right = (FrameworkElement)ContentBottom;
if (_stateBottom == State.Normal)
{
right.SetValue(Canvas.TopProperty, -ElementBottom.Height);
}
else
{
right.SetValue(Canvas.TopProperty, 0d);
}
right.Width = ElementBottom.Width;
right.Height = Height;
}
if (_stateRight == State.Expanded)
{
ElementRightClipping.Rect = new Rect(0d, 0d, ElementRight.Width, ElementRight.Height);
}
if (_stateBottom == State.Expanded)
{
ElementBottomClipping.Rect = new Rect(0d, 0d, ElementBottom.Width, ElementBottom.Height);
}
}
}
