public void UpdateGeometries()
{
float halfWidth = Size.X / 2, halfHeight = Size.Y / 2;
BorderRect.Left = Center.X - halfWidth;
BorderRect.Right = Center.X + halfWidth;
BorderRect.Top = Center.Y - halfHeight;
BorderRect.Bottom = Center.Y + halfHeight;
if (BorderWidth > 0)
{
ContentRect.Left = BorderRect.Left + BorderWidth;
ContentRect.Right = BorderRect.Right - BorderWidth;
ContentRect.Top = BorderRect.Top + BorderWidth;
ContentRect.Bottom = BorderRect.Bottom - BorderWidth;
}
else
{
ContentRect = BorderRect;
}
DualFlickerRects = new []
{
new RawRectangleF(ContentRect.Left, ContentRect.Top, ContentRect.Left + ContentRect.Width() / 2, ContentRect.Bottom),
new RawRectangleF(ContentRect.Left + ContentRect.Width() / 2, ContentRect.Top, ContentRect.Right, ContentRect.Bottom),
};
CenterPointEllipse = new SharpDX.Direct2D1.Ellipse(Center, FixationPointSize, FixationPointSize);
}
// ReSharper disable once CompareOfFloatsByEqualityOperator
public static RawRectangleF CenteredSizeScale(this RawRectangleF rect, float scale)
{
if (scale == 1)
{
return(rect);
}
var halfDeltaWidth = rect.Width() * (scale - 1) / 2;
var halfDeltaHeight = rect.Height() * (scale - 1) / 2;
return(new RawRectangleF(rect.Left - halfDeltaWidth, rect.Top - halfDeltaHeight, rect.Right + halfDeltaWidth, rect.Bottom + halfDeltaHeight));
}
