protected override void OnResize(EventArgs e)
{
base.OnResize(e);
// This code fixes the size of the surfaceBox as necessary to
// maintain the aspect ratio of the surface. Keeping the mouse
// within 32767 is delegated to the new overflow-checking code
// in Tool.cs.
Size mySize = this.Size;
if (this.Width == MaxSideLength && _surface != null)
{
// Windows forms probably clamped this control's width, so we have to fix the height.
mySize.Height = (int)(((long)(MaxSideLength + 1) * (long)_surface.Height) / (long)_surface.Width);
}
else if (mySize.Width == 0)
{
mySize.Width = 1;
}
if (this.Width == MaxSideLength && _surface != null)
{
// Windows forms probably clamped this control's height, so we have to fix the width.
mySize.Width = (int)(((long)(MaxSideLength + 1) * (long)_surface.Width) / (long)_surface.Height);
}
else if (mySize.Height == 0)
{
mySize.Height = 1;
}
if (mySize != this.Size)
{
this.Size = mySize;
}
if (_surface == null)
{
this._scaleFactor = ScaleFactor.OneToOne;
}
else
{
ScaleFactor newSF = ScaleFactor.Max(this.Width, _surface.Width,
this.Height, _surface.Height,
ScaleFactor.OneToOne);
this._scaleFactor = newSF;
}
this._rendererList.DestinationSize = this.Size;
}