private void UpdateLocation()
{
AutoSizeMode = AutoSizeMode.GrowAndShrink;
var clientSize = ClientRectangle.Size;
if (CanBalloonFitOnTopOfTarget(clientSize, anchorScreen))
{
tailLocation = TailLocation.Bottom;
var windowSize = SizeFromClientSize(clientSize, tailLocation);
var x = anchorBounds.Left - ((windowSize.Width - anchorBounds.Width) / 2);
x = Math.Max(x, anchorScreen.Bounds.Left);
x = Math.Min(x, anchorScreen.Bounds.Right - windowSize.Width);
SetBounds(x, anchorBounds.Top - windowSize.Height, windowSize.Width, windowSize.Height);
}
else if (CanBalloonFitOnRightOfTarget(clientSize, anchorScreen))
{
tailLocation = TailLocation.Left;
var windowSize = SizeFromClientSize(clientSize, tailLocation);
var y = anchorBounds.Top - ((windowSize.Height - anchorBounds.Height) / 2);
y = Math.Max(y, anchorScreen.Bounds.Top);
y = Math.Min(y, anchorScreen.Bounds.Bottom - windowSize.Height);
SetBounds(anchorBounds.Right, y, windowSize.Width, windowSize.Height);
}
else
{
tailLocation = TailLocation.Right;
var windowSize = SizeFromClientSize(clientSize, tailLocation);
var y = anchorBounds.Top - ((windowSize.Height - anchorBounds.Height) / 2);
y = Math.Max(y, anchorScreen.Bounds.Top);
y = Math.Min(y, anchorScreen.Bounds.Bottom - windowSize.Height);
SetBounds(anchorBounds.Left - windowSize.Width, y, windowSize.Width, windowSize.Height);
}
AutoSizeMode = AutoSizeMode.GrowOnly;
}
private Size SizeFromClientSize(Size clientSize, TailLocation tail)
{
// This would normally adjust the size based on the border styles. Since
// we don't have a system border, adjust for our non-client area
var rc = new Rectangle(new Point(0, 0), clientSize);
rc.Inflate(BalloonMargin, BalloonMargin);
switch (tail)
{
case TailLocation.Left:
rc.Width += TailLength;
break;
case TailLocation.Bottom:
rc.Height += TailLength;
break;
case TailLocation.Right:
rc.Width += TailLength;
break;
}
return(rc.Size);
}
