/// <inheritdoc/>
protected override Size2D ArrangeOverride(Size2D finalSize, ArrangeOptions options)
{
// Calculate the sizes of the track's components.
var thumbSize = CalculateThumbSize(finalSize);
var decreaseButtonSize = CalculateDecreaseButtonSize(finalSize, thumbSize);
var increaseButtonSize = CalculateIncreaseButtonSize(finalSize, decreaseButtonSize, thumbSize);
// Arrange the track's components.
var position = new Point2D(0, 0);
var orientation = this.Orientation;
if (IsDirectionReversed)
{
IncreaseButton.Arrange(new RectangleD(position, increaseButtonSize));
position += (orientation == Orientation.Horizontal) ? new Point2D(increaseButtonSize.Width, 0) : new Point2D(0, increaseButtonSize.Height);
Thumb.Arrange(new RectangleD(position, thumbSize));
position += (orientation == Orientation.Horizontal) ? new Point2D(thumbSize.Width, 0) : new Point2D(0, thumbSize.Height);
DecreaseButton.Arrange(new RectangleD(position, decreaseButtonSize));
}
else
{
DecreaseButton.Arrange(new RectangleD(position, decreaseButtonSize));
position += (orientation == Orientation.Horizontal) ? new Point2D(decreaseButtonSize.Width, 0) : new Point2D(0, decreaseButtonSize.Height);
Thumb.Arrange(new RectangleD(position, thumbSize));
position += (orientation == Orientation.Horizontal) ? new Point2D(thumbSize.Width, 0) : new Point2D(0, thumbSize.Height);
IncreaseButton.Arrange(new RectangleD(position, increaseButtonSize));
}
return(finalSize);
}
/// <summary>
/// Performs decrement.
/// </summary>
public void Decrement()
{
if (AutomationType == AutomationType.UIA2)
{
DecreaseButton.Invoke();
Wait.UntilInputIsProcessed();
}
else // UIA3
{
SetForeground();
Wait.UntilInputIsProcessed();
DecreaseButton.Click();
Wait.UntilInputIsProcessed();
}
}
protected override Size ArrangeOverride(Size arrangeSize)
{
double decreaseButtonLength, thumbLength, increaseButtonLength;
var isVertical = Orientation == Orientation.Vertical;
var viewportSize = Math.Max(0.0, ViewportSize);
// If viewport is NaN, compute thumb's size based on its desired size,
// otherwise compute the thumb base on the viewport and extent properties
if (double.IsNaN(ViewportSize))
{
ComputeSliderLengths(arrangeSize, isVertical, out decreaseButtonLength, out thumbLength, out increaseButtonLength);
}
else
{
// Don't arrange if there's not enough content or the track is too small
if (!ComputeScrollBarLengths(arrangeSize, viewportSize, isVertical, out decreaseButtonLength, out thumbLength, out increaseButtonLength))
{
return(arrangeSize);
}
}
// Layout the pieces of track
var offset = new Point();
var pieceSize = arrangeSize;
var isDirectionReversed = IsDirectionReversed;
if (isVertical)
{
CoerceLength(ref decreaseButtonLength, arrangeSize.Height);
CoerceLength(ref increaseButtonLength, arrangeSize.Height);
CoerceLength(ref thumbLength, arrangeSize.Height);
offset = offset.WithY(isDirectionReversed ? decreaseButtonLength + thumbLength : 0.0);
pieceSize = pieceSize.WithHeight(increaseButtonLength);
if (IncreaseButton != null)
{
IncreaseButton.Arrange(new Rect(offset, pieceSize));
}
offset = offset.WithY(isDirectionReversed ? 0.0 : increaseButtonLength + thumbLength);
pieceSize = pieceSize.WithHeight(decreaseButtonLength);
if (DecreaseButton != null)
{
DecreaseButton.Arrange(new Rect(offset, pieceSize));
}
offset = offset.WithY(isDirectionReversed ? decreaseButtonLength : increaseButtonLength);
pieceSize = pieceSize.WithHeight(thumbLength);
if (Thumb != null)
{
Thumb.Arrange(new Rect(offset, pieceSize));
}
ThumbCenterOffset = offset.Y + (thumbLength * 0.5);
}
else
{
CoerceLength(ref decreaseButtonLength, arrangeSize.Width);
CoerceLength(ref increaseButtonLength, arrangeSize.Width);
CoerceLength(ref thumbLength, arrangeSize.Width);
offset = offset.WithX(isDirectionReversed ? increaseButtonLength + thumbLength : 0.0);
pieceSize = pieceSize.WithWidth(decreaseButtonLength);
if (DecreaseButton != null)
{
DecreaseButton.Arrange(new Rect(offset, pieceSize));
}
offset = offset.WithX(isDirectionReversed ? 0.0 : decreaseButtonLength + thumbLength);
pieceSize = pieceSize.WithWidth(increaseButtonLength);
if (IncreaseButton != null)
{
IncreaseButton.Arrange(new Rect(offset, pieceSize));
}
offset = offset.WithX(isDirectionReversed ? increaseButtonLength : decreaseButtonLength);
pieceSize = pieceSize.WithWidth(thumbLength);
if (Thumb != null)
{
Thumb.Arrange(new Rect(offset, pieceSize));
}
ThumbCenterOffset = offset.X + (thumbLength * 0.5);
}
return(arrangeSize);
}