private Size CalculateImageSize(int sideVal, fixedSize fixedSide)
{
Size mySize = new Size();
float ratioCur = ((float)_original.Width / (float)_original.Height);
switch (fixedSide)
{
case fixedSize.Height:
mySize.Height = sideVal;
if (_original.Height > _original.Width)
{
mySize.Width = Convert.ToInt32(sideVal * ratioCur);
}
else
{
mySize.Width = Convert.ToInt32(sideVal * ratioCur);
}
break;
case fixedSize.Width:
mySize.Width = sideVal;
if (_original.Height > _original.Width)
{
mySize.Height = Convert.ToInt32(sideVal / ratioCur);
}
else
{
mySize.Height = Convert.ToInt32(sideVal / ratioCur);
}
break;
}
return(mySize);
}
public Image resize(int sideVal, fixedSize fixedSide)
{
Size newSize = CalculateImageSize(sideVal, fixedSide);
Bitmap TargetBitmap = new Bitmap(_original, newSize);
using (Graphics TargetGraphic = Graphics.FromImage(TargetBitmap))
{
TargetGraphic.InterpolationMode = InterpolationMode.HighQualityBicubic;
TargetGraphic.SmoothingMode = SmoothingMode.HighQuality;
TargetGraphic.DrawImage(_original, new Rectangle(0, 0, newSize.Width, newSize.Height), 0, 0, _original.Width, _original.Height, GraphicsUnit.Pixel);
}
return(TargetBitmap);
}