/// <summary>Clamps the specified point to be contained within the box.</summary>
/// <param name="target">The target point.</param>
/// <param name="clamped">The clamped point.</param>
public void Clamp(ref Vector2 target, out Vector2 clamped)
{
Vector2Helper.Clamp(ref target, ref Min, ref Max, out clamped);
}
public void Update(LayoutHints hints, bool useLayoutInfo, float backgroundDepth)
{
UseLayoutInfo = useLayoutInfo;
// Calculate main dimensions
Depth = hints.Depth;
if (useLayoutInfo)
{
Position = _layoutPosition;
Size = _layoutSize;
DepthOffset = _layoutDepthOffset;
}
else
{
Position = Vector3.Zero;
Size = DualityApp.WindowSize;
DepthOffset = Depth - 1;
}
// Calculate background area dimensions
// The background is inset by the Margins hint into the main element area.
// Its DepthOffset is the same as that of the element - it lies behind the content
BackgroundDepth = backgroundDepth;
BackgroundDepthOffset = DepthOffset;
var backgroundPosition = Position;
var backgroundSize = Size;
if (hints.BackgroundSize.UseX)
{
backgroundSize.X = hints.BackgroundSize.Value.X;
}
if (hints.BackgroundSize.UseY)
{
backgroundSize.Y = hints.BackgroundSize.Value.Y;
}
// Margins have already been checked for negatives in LayoutHints.Update()
backgroundPosition.Xy += hints.Margin.BottomLeft;
backgroundPosition.Xy = Vector2.Min(backgroundPosition.Xy, Position.Xy + Size);
var maxBackgroundSize = Size - (backgroundPosition.Xy - Position.Xy);
maxBackgroundSize -= hints.Margin.TopRight;
backgroundSize = Vector2Helper.Clamp(backgroundSize, Vector2.Zero, maxBackgroundSize);
BackgroundPosition = backgroundPosition;
BackgroundSize = backgroundSize;
// Calculate content dimensions
ContentDepth = hints.ContentHints.Depth;
ContentDepthOffset = BackgroundDepthOffset - BackgroundDepth;
var maxSize = hints.ContentHints.MaxSize;
var minSize = hints.ContentHints.MinSize;
maxSize = Vector2.Max(Vector2.Zero, maxSize);
if (!hints.ContentHints.Stretch)
{
var prefSize = hints.ContentHints.PreferredSize;
prefSize = Vector2.Max(prefSize, Vector2.Zero);
maxSize = Vector2.Min(prefSize, maxSize);
}
minSize = Vector2Helper.Clamp(minSize, Vector2.Zero, maxSize);
var contentSize = BackgroundSize - hints.Padding.TotalSize;
contentSize = Vector2Helper.Clamp(contentSize, minSize, maxSize);
ContentSize = contentSize;
// Calculate content area dimensions
Vector3 contentAreaPosition = BackgroundPosition + new Vector3(hints.Padding.BottomLeft);
Vector2 contentAreaSize = BackgroundSize - hints.Padding.TotalSize;
// Align content within contentArea
var alignment = hints.ContentHints.Alignment;
var alignmentOffset = alignment.ApplyTo(Vector2.Zero, ContentSize)
- alignment.ApplyTo(Vector2.Zero, contentAreaSize);
ContentPosition = contentAreaPosition + new Vector3(alignmentOffset);
}