public static void then_should_return_true_given_new_objects()
{
// Arrange
var imageLayer1 = new ImageLayer();
var imageLayer2 = new ImageLayer();
// Act
var result = imageLayer1.Equals(imageLayer2);
// Assert
Assert.That(result, Is.True);
}
public static void then_should_return_false_given_null_second_layer()
{
// Arrange
var imageLayer1 = new ImageLayer { Position = new Point(1, 1) };
ImageLayer imageLayer2 = null;
// Act
var result = imageLayer1.Equals(imageLayer2);
// Assert
Assert.That(result, Is.False);
}
public static void then_should_return_false_given_different_layers()
{
// Arrange
var imageLayer1 = new ImageLayer { Position = new Point(1, 1) };
var imageLayer2 = new ImageLayer { Position = new Point(10, 10) };
// Act
var result = imageLayer1.Equals(imageLayer2);
// Assert
Assert.That(result, Is.False);
}
public static void then_should_return_true_given_image_and_size_and_opacity_and_position_same()
{
// Arrange
var imageLayer1 = new ImageLayer
{
Opacity = 50,
Position = new Point(1, 1),
Size = new Size(5, 5)
};
var imageLayer2 = new ImageLayer
{
Opacity = 50,
Position = new Point(1, 1),
Size = new Size(5, 5)
};
// Act
var result = imageLayer1.Equals(imageLayer2);
// Assert
Assert.That(result, Is.True);
}
/// <summary>
/// Adds a image overlay to the current image.
/// </summary>
/// <param name="imageLayer">
/// The <see cref="T:ImageProcessor.Imaging.ImageLayer"/> containing the properties necessary to add
/// the image overlay to the image.
/// </param>
/// <returns>
/// The current instance of the <see cref="T:ImageProcessor.ImageFactory"/> class.
/// </returns>
public ImageFactory Overlay(ImageLayer imageLayer)
{
if (this.ShouldProcess)
{
Overlay watermark = new Overlay { DynamicParameter = imageLayer };
this.CurrentImageFormat.ApplyProcessor(watermark.ProcessImage, this);
}
return this;
}
static byte[] Overlay(byte[] photo, Image overlay, int offset, int quality = 100, int opacity = 100)
{
var position = new Point();
using (var ms = new MemoryStream(photo))
{
var image = Image.FromStream(ms);
position.X = image.Width - overlay.Width - offset;
position.Y = image.Height - overlay.Height - offset;
}
var imagelayer = new ImageLayer
{
Image = overlay,
Position = position,
Opacity = opacity
};
using (var inStream = new MemoryStream(photo))
{
using (var outStream = new MemoryStream())
{
using (var imageFactory = new ImageFactory(preserveExifData: true))
{
imageFactory.Load(inStream)
.Overlay(imagelayer)
.Format(new JpegFormat())
.Quality(quality)
.BackgroundColor(Color.White)
.Save(outStream);
return outStream.ToArray();
}
}
}
}
