public void PrimitiveUnion_CorrectlyConvertsUInt64Values()
{
var union1 = new PrimitiveUnion((UInt64)123412341234);
TheResultingValue(union1.AsUInt64())
.ShouldBe(123412341234);
}
public void PrimitiveUnion_CorrectlyConvertsCharValues()
{
var union1 = new PrimitiveUnion('@');
TheResultingValue(union1.AsChar())
.ShouldBe('@');
}
public void PrimitiveUnion_CorrectlyConvertsDoubleValues()
{
var union1 = new PrimitiveUnion(1234567890.123456789);
TheResultingValue(union1.AsDouble())
.ShouldBe(1234567890.123456789);
}
public void PrimitiveUnion_CorrectlyConvertsByteValues()
{
var union1 = new PrimitiveUnion((Byte)123);
TheResultingValue(union1.AsByte())
.ShouldBe(123);
}
public void PrimitiveUnion_CorrectlyConvertsInt64Values()
{
var union1 = new PrimitiveUnion(123412341234);
var union2 = new PrimitiveUnion(-234523452345);
TheResultingValue(union1.AsInt64())
.ShouldBe(123412341234);
TheResultingValue(union2.AsInt64())
.ShouldBe(-234523452345);
}
/// <summary>
/// Occurs when the scroll bar receives a <see cref="Thumb.DragDelta"/> event.
/// </summary>
/// <param name="hchange">The distance that the thumb moved horizontally.</param>
/// <param name="vchange">The distance that the thumb moved vertically.</param>
protected virtual void OnThumbDragDelta(Double hchange, Double vchange)
{
if (hchange == 0 && vchange == 0)
{
return;
}
var valueDelta = Track.ValueFromDistance(hchange, vchange);
if (!Double.IsNaN(valueDelta) && valueDelta != 0.0)
{
var valueAfterChange = Math.Max(Minimum, Math.Min(Value + valueDelta, Maximum));
const Double MaximumPerpendicularDistance = 150.0;
var perpendicularDistance = Math.Abs((Track.Orientation == Orientation.Horizontal) ? vchange : hchange);
if (perpendicularDistance > MaximumPerpendicularDistance)
{
valueAfterChange = valueAtStartOfDrag;
}
if (IsPartOfScrollViewer)
{
var command = (Track.Orientation == Orientation.Horizontal) ? ScrollBar.DeferScrollToHorizontalOffsetCommand : ScrollBar.DeferScrollToVerticalOffsetCommand;
var commandParam = new PrimitiveUnion(valueAfterChange);
var commandTarget = (TemplatedParent as IInputElement) ?? this;
if (command.CanExecute(View, null, commandParam, commandTarget))
{
command.Execute(View, null, commandParam, commandTarget);
}
else
{
command = (Track.Orientation == Orientation.Horizontal) ? ScrollBar.ScrollToHorizontalOffsetCommand : ScrollBar.ScrollToVerticalOffsetCommand;
if (command.CanExecute(View, null, commandParam, commandTarget))
{
command.Execute(View, null, commandParam, commandTarget);
}
}
}
else
{
Value = valueAfterChange;
}
RaiseScrollEvent(ScrollEventType.ThumbTrack);
}
}
