public static Rectangle Intersect(RectangleWithLongs imageArea, RectangleWithLongs requestedArea)
{
if (requestedArea.Width < 0)
{
requestedArea.X = requestedArea.Width + requestedArea.X;
requestedArea.Width *= -1;
}
if (requestedArea.Height < 0)
{
requestedArea.Y = requestedArea.Height + requestedArea.Y;
requestedArea.Height *= -1;
}
long x1 = Math.Max(imageArea.X, requestedArea.X);
long x2 = Math.Min(imageArea.X + imageArea.Width, requestedArea.X + requestedArea.Width);
long y1 = Math.Max(imageArea.Y, requestedArea.Y);
long y2 = Math.Min(imageArea.Y + imageArea.Height, requestedArea.Y + requestedArea.Height);
if (x2 >= x1 && y2 >= y1 && (x2 - x1) != 0 && (y2 - y1) != 0)
{
return(new Rectangle((int)x1, (int)y1, (int)(x2 - x1), (int)(y2 - y1)));
}
return(Rectangle.Empty);
}
public void TestRectangleWithLongsIntersection()
{
Size testSize = new Size(100, 100);
Assert.AreEqual(new Rectangle(0, 0, 100, 100),
RectangleWithLongs.Intersect(testSize, new RectangleWithLongs(0, 0, 100, 100)));
Assert.AreEqual(new Rectangle(0, 0, 100, 100),
RectangleWithLongs.Intersect(testSize, new RectangleWithLongs(0, 0, 200, 200)));
Assert.AreEqual(new Rectangle(0, 0, 100, 100),
RectangleWithLongs.Intersect(testSize, new RectangleWithLongs(0, 0, 200, 100)));
Assert.AreEqual(new Rectangle(0, 0, 100, 100),
RectangleWithLongs.Intersect(testSize, new RectangleWithLongs(0, 0, 100, 200)));
Assert.AreEqual(new Rectangle(0, 0, 30, 40),
RectangleWithLongs.Intersect(testSize, new RectangleWithLongs(0, 0, 30, 40)));
Assert.AreEqual(new Rectangle(30, 40, 10, 10),
RectangleWithLongs.Intersect(testSize, new RectangleWithLongs(30, 40, 10, 10)));
Assert.AreEqual(new Rectangle(0, 0, 30, 40),
RectangleWithLongs.Intersect(testSize, new RectangleWithLongs(-5, 0, 35, 40)));
Assert.AreEqual(new Rectangle(0, 0, 30, 40),
RectangleWithLongs.Intersect(testSize, new RectangleWithLongs(0, -5, 30, 45)));
Assert.AreEqual(new Rectangle(0, 0, 100, 20),
RectangleWithLongs.Intersect(testSize, new RectangleWithLongs(-5, -30, 200, 50)));
Assert.AreEqual(new Rectangle(30, 0, 20, 80),
RectangleWithLongs.Intersect(testSize, new RectangleWithLongs(50, 80, -20, -150)));
Assert.AreEqual(new Rectangle(0, 0, 100, 100),
RectangleWithLongs.Intersect(testSize, new RectangleWithLongs(100, 100, -100, -100)));
Assert.AreEqual(new Rectangle(0, 0, 0, 0),
RectangleWithLongs.Intersect(testSize, new RectangleWithLongs(0, 0, 0, 0)));
Assert.AreEqual(new Rectangle(0, 0, 0, 0),
RectangleWithLongs.Intersect(testSize, new RectangleWithLongs(0, 0, 0, 100)));
Assert.AreEqual(new Rectangle(0, 0, 0, 0),
RectangleWithLongs.Intersect(testSize, new RectangleWithLongs(0, 0, 100, 0)));
Assert.AreEqual(new Rectangle(0, 0, 0, 0),
RectangleWithLongs.Intersect(testSize, new RectangleWithLongs(0, 0, 0, -100)));
Assert.AreEqual(new Rectangle(0, 0, 0, 0),
RectangleWithLongs.Intersect(testSize, new RectangleWithLongs(0, 0, -100, 0)));
Assert.AreEqual(new Rectangle(0, 0, 0, 0),
RectangleWithLongs.Intersect(testSize, new RectangleWithLongs(100, 100, 0, 0)));
Assert.AreEqual(new Rectangle(0, 0, 0, 0),
RectangleWithLongs.Intersect(testSize, new RectangleWithLongs(100, 100, 100, 100)));
Assert.AreEqual(new Rectangle(0, 0, 0, 0),
RectangleWithLongs.Intersect(testSize, new RectangleWithLongs(-5, -30, 4, 29)));
Assert.AreEqual(new Rectangle(0, 0, 0, 0),
RectangleWithLongs.Intersect(testSize, new RectangleWithLongs(-5, -30, 5, 30)));
Assert.AreEqual(new Rectangle(0, 0, 0, 0),
RectangleWithLongs.Intersect(testSize, new RectangleWithLongs(-5, -30, -100, -100)));
}
public Transformation(Bitmap originalImage, RectangleWithLongs requestedArea)
{
RequestedArea = requestedArea;
ImageToTransform = originalImage;
}
public CounterClockwiseRotation(Bitmap originalImage, RectangleWithLongs requestedArea) : base(originalImage, requestedArea)
{
}
public HorizontalFlip(Bitmap originalImage, RectangleWithLongs requestedArea) : base(originalImage, requestedArea)
{
}
public TransformableImage(Transformation transformation, RectangleWithLongs requestedArea, Bitmap imageToTransform)
{
RequestedArea = requestedArea;
ImageToTransform = imageToTransform;
Transformation = transformation;
}
