internal static string ToString(SplitterDistance distance, CultureInfo cultureInfo)
{
if (distance.IsAutoPixel)
{
return("Auto");
}
else if (distance.IsAutoStar)
{
return("Auto*");
}
else if (distance.UnitType == SplitterUnitType.Star)
{
if (distance.Value.IsClose(1.0))
{
return("*");
}
else
{
return(Convert.ToString(distance.Value, cultureInfo) + "*");
}
}
else
{
return(Convert.ToString(distance.Value, cultureInfo));
}
}
public void BeginDrag(SplitContainer splitContainer, MouseEventArgs e)
{
_splitContainer = splitContainer;
_originalSplitterDistance = _splitContainer.SplitterDistance;
Debug.Assert(splitContainer.SplitterPresenter != null);
DragDetect((UIElement)VisualTreeHelper.GetChild(splitContainer.SplitterPresenter, 0), e);
}
/// <exclude/>
public override object ConvertTo(ITypeDescriptorContext context, CultureInfo culture, object value, Type destinationType)
{
if (destinationType == null)
{
throw new ArgumentNullException("destinationType");
}
if ((value != null) && (value is SplitterDistance))
{
SplitterDistance distance = (SplitterDistance)value;
if (destinationType == typeof(string))
{
return(ToString(distance, culture));
}
if (destinationType == typeof(InstanceDescriptor))
{
return(new InstanceDescriptor(typeof(SplitterDistance).GetConstructor(new Type[] { typeof(double), typeof(SplitterUnitType) }), new object[] { distance.Value, distance.UnitType }));
}
}
throw base.GetConvertToException(value, destinationType);
}
private void MoveSplitter(SplitterDistance value)
{
SplitterDistance = value;
UpdateLayout();
}
private Size CalculateLengthes(Size availableSize, out double child1Length, out double splitterLength, out double child2Length)
{
Orientation orientation = Orientation;
double originalLength = orientation == Orientation.Vertical ? availableSize.Height : availableSize.Width;
SplitterDistance splitterDistance = SplitterDistance;
splitterLength = IsChild1Collapsed && IsChild2Collapsed ? 0 : SplitterWidth;
double length1, length2;
double minLength1 = IsSplitterTopLeft ? Child1MinSize : Child2MinSize;
double minLength2 = IsSplitterTopLeft ? Child2MinSize : Child1MinSize;
Size desiredSize1 = IsSplitterTopLeft ? Child1DesiredSize : Child2DesiredSize;
Size desiredSize2 = IsSplitterTopLeft ? Child2DesiredSize : Child1DesiredSize;
if (originalLength == double.PositiveInfinity)
{
if (splitterDistance.IsAbsolute)
{
length1 = splitterDistance.Value;
}
else
{
length1 = orientation == Orientation.Vertical ? desiredSize1.Height : desiredSize1.Width;
}
if (length1 < minLength1)
{
length1 = minLength1;
}
length2 = orientation == Orientation.Vertical ? desiredSize2.Height : desiredSize2.Width;
}
else
{
double availableLength = originalLength - splitterLength;
if (splitterDistance.IsAuto)
{
length1 = orientation == Orientation.Vertical ? desiredSize1.Height : desiredSize1.Width;
}
else if (splitterDistance.IsStar)
{
length1 = availableLength * splitterDistance.Value / (splitterDistance.Value + 1);
}
else
{
length1 = splitterDistance.Value;
}
if (length1 > availableLength - minLength2)
{
length1 = availableLength - minLength2;
}
if (length1 < minLength1)
{
length1 = minLength1;
}
length2 = availableLength - length1;
}
if (length2 < minLength2)
{
length2 = minLength2;
}
child1Length = IsSplitterTopLeft ? length1 : length2;
child2Length = IsSplitterTopLeft ? length2 : length1;
double height, width;
if (orientation == Orientation.Vertical)
{
height = length1 + length2 + splitterLength;
if (double.IsPositiveInfinity(availableSize.Width))
{
width = Math.Max(Child1DesiredSize.Width, Child2DesiredSize.Width);
}
else
{
width = availableSize.Width;
}
}
else
{
width = length1 + length2 + splitterLength;
if (double.IsPositiveInfinity(availableSize.Height))
{
height = Math.Max(Child1DesiredSize.Height, Child2DesiredSize.Height);
}
else
{
height = availableSize.Height;
}
}
return(new Size(width, height));
}
