public void Test_Clip()
{
using (MagickImage image = new MagickImage(Files.InvitationTif))
{
image.Clip("Pad A", false);
Assert.IsNotNull(image.Mask);
using (PixelCollection pixels = image.Mask.GetReadOnlyPixels())
{
Pixel pixelA = pixels.GetPixel(0, 0);
Pixel pixelB = pixels.GetPixel(pixels.Width - 1, pixels.Height - 1);
for (int i = 0; i < 3; i++)
{
Assert.AreEqual(0, pixelA.GetChannel(i));
Assert.AreEqual(0, pixelB.GetChannel(i));
}
}
}
}
private void ExecuteClip(XmlElement element, MagickImage image)
{
Hashtable arguments = new Hashtable();
foreach (XmlAttribute attribute in element.Attributes)
{
if (attribute.Name == "inside")
arguments["inside"] = Variables.GetValue<Boolean>(attribute);
else if (attribute.Name == "pathName")
arguments["pathName"] = Variables.GetValue<String>(attribute);
}
if (arguments.Count == 0)
image.Clip();
else if (OnlyContains(arguments, "pathName", "inside"))
image.Clip((String)arguments["pathName"], (Boolean)arguments["inside"]);
else
throw new ArgumentException("Invalid argument combination for 'clip', allowed combinations are: [] [pathName, inside]");
}
private static void Test_Clip(bool inside, QuantumType value)
{
using (MagickImage image = new MagickImage(Files.InvitationTif))
{
image.Alpha(AlphaOption.Transparent);
image.Clip("Pad A", inside);
image.Alpha(AlphaOption.Opaque);
using (MagickImage mask = image.WriteMask)
{
Assert.IsNotNull(mask);
Assert.AreEqual(false, mask.HasAlpha);
using (PixelCollection pixels = mask.GetPixels())
{
MagickColor pixelA = pixels.GetPixel(0, 0).ToColor();
MagickColor pixelB = pixels.GetPixel(mask.Width - 1, mask.Height - 1).ToColor();
Assert.AreEqual(pixelA, pixelB);
Assert.AreEqual(value, pixelA.R);
Assert.AreEqual(value, pixelA.G);
Assert.AreEqual(value, pixelA.B);
MagickColor pixelC = pixels.GetPixel(mask.Width / 2, mask.Height / 2).ToColor();
Assert.AreEqual(Quantum.Max - value, pixelC.R);
Assert.AreEqual(Quantum.Max - value, pixelC.G);
Assert.AreEqual(Quantum.Max - value, pixelC.B);
}
}
}
}
