private static Image ResizeImage(Image originalBitmap, int maxDimension, ResizingApproach resizingApproach)
{
float aspectX = maxDimension / (float)originalBitmap.Width;
float aspectY = maxDimension / (float)originalBitmap.Height;
float actualAspect = 0;
if (resizingApproach == ResizingApproach.Max)
{
actualAspect = Math.Min(aspectX, aspectY);
}
else if (resizingApproach == ResizingApproach.Min)
{
actualAspect = Math.Max(aspectX, aspectY);
}
else if (resizingApproach == ResizingApproach.Horizontal)
{
actualAspect = aspectX;
}
else if (resizingApproach == ResizingApproach.Vertical)
{
actualAspect = aspectY;
}
int sourceWidth = (int)(originalBitmap.Width * actualAspect);
int sourceHeight = (int)(originalBitmap.Height * actualAspect);
var resized = new Bitmap(sourceWidth, sourceHeight);
Graphics g = Graphics.FromImage(resized);
g.DrawImage(originalBitmap, new Rectangle(0, 0, resized.Width, resized.Height));
return(resized);
}
private void SetResizingApproach(ResizingApproach approach)
{
maxRadio.Checked = approach == ResizingApproach.Max;
minRadio.Checked = approach == ResizingApproach.Min;
horizontalRadio.Checked = approach == ResizingApproach.Horizontal;
verticalRadio.Checked = approach == ResizingApproach.Vertical;
}
