bool CalcaluteImageViewSize()
{
if (Image != null)
{
var size = Image.Size;
var clientSize = ClientSize;
var zoom = Zoom;
switch (ZoomType)
{
case ZoomType.FitHeight:
zoom = (float)clientSize.Height / size.Height;
if (zoom * size.Width > clientSize.Width)
{
zoom = (float)(clientSize.Height - SystemInformation.HorizontalScrollBarHeight) / size.Height;
}
break;
case ZoomType.FitWidth:
zoom = (float)clientSize.Width / size.Width;
if (zoom * size.Height > clientSize.Height)
{
zoom = (float)(clientSize.Width - SystemInformation.VerticalScrollBarWidth) / size.Width;
}
break;
case ZoomType.FitPage:
zoom = Math.Min((float)clientSize.Width / size.Width, (float)clientSize.Height / size.Height);
break;
}
ZoomValue = zoom;
size = PaintHelper.Zoom(size, zoom);
if (ImageViewSize != size)
{
ImageViewSize = size;
AutoScrollMinSize = ImageViewSize;
return(true);
}
}
return(false);
}