// Token: 0x06006134 RID: 24884 RVA: 0x001B47DC File Offset: 0x001B29DC
private void ComputeSliderLengths(Size arrangeSize, bool isVertical, out double decreaseButtonLength, out double thumbLength, out double increaseButtonLength)
{
double minimum = this.Minimum;
double num = Math.Max(0.0, this.Maximum - minimum);
double num2 = Math.Min(num, this.Value - minimum);
double num3;
if (isVertical)
{
num3 = arrangeSize.Height;
thumbLength = ((this.Thumb == null) ? 0.0 : this.Thumb.DesiredSize.Height);
}
else
{
num3 = arrangeSize.Width;
thumbLength = ((this.Thumb == null) ? 0.0 : this.Thumb.DesiredSize.Width);
}
Track.CoerceLength(ref thumbLength, num3);
double num4 = num3 - thumbLength;
decreaseButtonLength = num4 * num2 / num;
Track.CoerceLength(ref decreaseButtonLength, num4);
increaseButtonLength = num4 - decreaseButtonLength;
Track.CoerceLength(ref increaseButtonLength, num4);
this.Density = num / num4;
}
// Token: 0x06006135 RID: 24885 RVA: 0x001B48BC File Offset: 0x001B2ABC
private bool ComputeScrollBarLengths(Size arrangeSize, double viewportSize, bool isVertical, out double decreaseButtonLength, out double thumbLength, out double increaseButtonLength)
{
double minimum = this.Minimum;
double num = Math.Max(0.0, this.Maximum - minimum);
double num2 = Math.Min(num, this.Value - minimum);
double num3 = Math.Max(0.0, num) + viewportSize;
double num4;
double val;
if (isVertical)
{
num4 = arrangeSize.Height;
object obj = base.TryFindResource(SystemParameters.VerticalScrollBarButtonHeightKey);
double num5 = (obj is double) ? ((double)obj) : SystemParameters.VerticalScrollBarButtonHeight;
val = Math.Floor(num5 * 0.5);
}
else
{
num4 = arrangeSize.Width;
object obj2 = base.TryFindResource(SystemParameters.HorizontalScrollBarButtonWidthKey);
double num6 = (obj2 is double) ? ((double)obj2) : SystemParameters.HorizontalScrollBarButtonWidth;
val = Math.Floor(num6 * 0.5);
}
thumbLength = num4 * viewportSize / num3;
Track.CoerceLength(ref thumbLength, num4);
thumbLength = Math.Max(val, thumbLength);
bool flag = DoubleUtil.LessThanOrClose(num, 0.0);
bool flag2 = thumbLength > num4;
if (flag || flag2)
{
if (base.Visibility != Visibility.Hidden)
{
base.Visibility = Visibility.Hidden;
}
this.ThumbCenterOffset = double.NaN;
this.Density = double.NaN;
decreaseButtonLength = 0.0;
increaseButtonLength = 0.0;
return(false);
}
if (base.Visibility != Visibility.Visible)
{
base.Visibility = Visibility.Visible;
}
double num7 = num4 - thumbLength;
decreaseButtonLength = num7 * num2 / num;
Track.CoerceLength(ref decreaseButtonLength, num7);
increaseButtonLength = num7 - decreaseButtonLength;
Track.CoerceLength(ref increaseButtonLength, num7);
this.Density = num / num7;
return(true);
}
/// <summary>Creates the layout for the <see cref="T:System.Windows.Controls.Primitives.Track" />.</summary>
/// <param name="arrangeSize">The area that is provided for the <see cref="T:System.Windows.Controls.Primitives.Track" />.</param>
/// <returns>The <see cref="T:System.Windows.Size" /> to use for the <see cref="T:System.Windows.Controls.Primitives.Track" /> content.</returns>
// Token: 0x06006133 RID: 24883 RVA: 0x001B4580 File Offset: 0x001B2780
protected override Size ArrangeOverride(Size arrangeSize)
{
bool flag = this.Orientation == Orientation.Vertical;
double num = Math.Max(0.0, this.ViewportSize);
double num2;
double num3;
double num4;
if (double.IsNaN(num))
{
this.ComputeSliderLengths(arrangeSize, flag, out num2, out num3, out num4);
}
else if (!this.ComputeScrollBarLengths(arrangeSize, num, flag, out num2, out num3, out num4))
{
return(arrangeSize);
}
Point location = default(Point);
Size size = arrangeSize;
bool isDirectionReversed = this.IsDirectionReversed;
if (flag)
{
Track.CoerceLength(ref num2, arrangeSize.Height);
Track.CoerceLength(ref num4, arrangeSize.Height);
Track.CoerceLength(ref num3, arrangeSize.Height);
location.Y = (isDirectionReversed ? (num2 + num3) : 0.0);
size.Height = num4;
if (this.IncreaseRepeatButton != null)
{
this.IncreaseRepeatButton.Arrange(new Rect(location, size));
}
location.Y = (isDirectionReversed ? 0.0 : (num4 + num3));
size.Height = num2;
if (this.DecreaseRepeatButton != null)
{
this.DecreaseRepeatButton.Arrange(new Rect(location, size));
}
location.Y = (isDirectionReversed ? num2 : num4);
size.Height = num3;
if (this.Thumb != null)
{
this.Thumb.Arrange(new Rect(location, size));
}
this.ThumbCenterOffset = location.Y + num3 * 0.5;
}
else
{
Track.CoerceLength(ref num2, arrangeSize.Width);
Track.CoerceLength(ref num4, arrangeSize.Width);
Track.CoerceLength(ref num3, arrangeSize.Width);
location.X = (isDirectionReversed ? (num4 + num3) : 0.0);
size.Width = num2;
if (this.DecreaseRepeatButton != null)
{
this.DecreaseRepeatButton.Arrange(new Rect(location, size));
}
location.X = (isDirectionReversed ? 0.0 : (num2 + num3));
size.Width = num4;
if (this.IncreaseRepeatButton != null)
{
this.IncreaseRepeatButton.Arrange(new Rect(location, size));
}
location.X = (isDirectionReversed ? num4 : num2);
size.Width = num3;
if (this.Thumb != null)
{
this.Thumb.Arrange(new Rect(location, size));
}
this.ThumbCenterOffset = location.X + num3 * 0.5;
}
return(arrangeSize);
}