public override void CropImage(CropInput cropInput)
{
var input = cropInput as RectangleCropInput;
if (input.DecreasePercentage >= 100)
{
throw new ArgumentException("Value of percentage to decrease image must be less than 100%");
}
float fraction = input.DecreasePercentage / 100.0f;
Rectangle cropRectangle = new Rectangle(
(int)(_sourceImage.Width * (fraction / 2)),
(int)(_sourceImage.Height * (fraction / 2)),
(int)(_sourceImage.Width * 3 * fraction),
(int)(_sourceImage.Height * 3 * fraction));
_targetImage = new Bitmap(cropRectangle.Width, cropRectangle.Height);
using (Graphics graphics = Graphics.FromImage(_targetImage))
{
graphics.DrawImage(_sourceImage, new Rectangle(0, 0, _targetImage.Width, _targetImage.Height),
cropRectangle,
GraphicsUnit.Pixel);
}
}
public override void CropImage(CropInput cropInput)
{
var input = cropInput as EllipseCropInput;
if (_sourceImage.Height <= input.HeightOffset || _sourceImage.Width <= input.WidthOffset)
{
throw new ArgumentException("Offset cannot be greater than width or height");
}
_targetImage = new Bitmap(_sourceImage.Width, _sourceImage.Height);
var graphicsPath = new GraphicsPath();
Rectangle cropRectangle = new Rectangle(input.WidthOffset / 2, input.HeightOffset / 2,
_sourceImage.Width - input.WidthOffset, _sourceImage.Height - input.HeightOffset);
graphicsPath.AddEllipse(cropRectangle);
using (Graphics graphics = Graphics.FromImage(_targetImage))
{
graphics.SetClip(graphicsPath);
graphics.Clear(Color.White);
graphics.DrawImage(_sourceImage, new Rectangle(0, 0, _sourceImage.Width, _sourceImage.Height),
0, 0, _sourceImage.Width, _sourceImage.Height, GraphicsUnit.Pixel);
}
_targetImage.MakeTransparent(Color.White);
}
public ActionResult OCrop(CropInput cropDisplay)
{
return(View(cropDisplay));
}
public abstract void CropImage(CropInput cropInput);
