public void TestGetTouchPointerStyle()
{
var sourceImage = new CodedImage {
Size = new Size(200, 150)
};
var cropController = new ImageCropController(new ImageCropManipulator(sourceImage));
var visualZoomedCropController = new VisualZoomCropController(cropController, new Size(60, 50));
visualZoomedCropController.ZoomPercent = 100;
visualZoomedCropController.CropKind = ImageCropper.CropKind.Rectangle;
visualZoomedCropController.SetCropRectForTest(new Rectangle(20, 10, 160, 130));
visualZoomedCropController.ZoomPercent = 50;
Assert.AreEqual(new Rectangle(10, 5, 80, 65), visualZoomedCropController.CropRect);
AssertGetTouchPointerStyle(visualZoomedCropController, VisualController.TouchPointerStyle.Shift, false, new Point(0, 0), new Point(99, 74));
visualZoomedCropController.OnTouched(new Point(0, 0));
visualZoomedCropController.OnShift(new Point(-20, -10)); // Shift on distance (-20, -10)
visualZoomedCropController.OnUntouched(new Point(0, 0));
Assert.AreEqual(new Rectangle(20, 10, 60, 50), visualZoomedCropController.VisualImageFrame);
AssertGetTouchPointerStyle(visualZoomedCropController, VisualController.TouchPointerStyle.ResizeAll, false, new Point(0, 0), new Point(20, 30));
AssertGetTouchPointerStyle(visualZoomedCropController, VisualController.TouchPointerStyle.ResizeLeftTop_RightBottom, true, new Point(-10, -5), new Point(70, 60));
AssertGetTouchPointerStyle(visualZoomedCropController, VisualController.TouchPointerStyle.ResizeRightTop_LeftBottom, true, new Point(70, -5), new Point(-10, 60));
AssertGetTouchPointerStyle(visualZoomedCropController, VisualController.TouchPointerStyle.ResizeHorizontal, true, new Point(-10, 27), new Point(70, 27));
AssertGetTouchPointerStyle(visualZoomedCropController, VisualController.TouchPointerStyle.ResizeVertical, true, new Point(30, -5), new Point(30, 60));
}
public void TestShift()
{
var sourceImage = new CodedImage {
Size = new Size(200, 150)
};
var cropController = new ImageCropController(new ImageCropManipulator(sourceImage));
var visualZoomedCropController = new VisualZoomCropController(cropController, new Size(60, 50));
using (visualZoomedCropController.SuspendUpdateVisualImage())
{
visualZoomedCropController.ZoomPercent = 50;
visualZoomedCropController.CropKind = ImageCropper.CropKind.Rectangle;
visualZoomedCropController.SetCropRectForTest(new Rectangle(0, 0, 100, 75));
}
visualZoomedCropController.OnTouched(new Point(20, 20));
visualZoomedCropController.OnShift(new Point(0, 10)); // Shift on distance (-20, -10)
visualZoomedCropController.OnUntouched(new Point(0, 10));
AssertShift(visualZoomedCropController, new Rectangle(10, 5, 50, 40), new Point(-10, -5), new Size(5, 10), new Rectangle(15, 15, 45, 30)); // Left-top
AssertShift(visualZoomedCropController, new Rectangle(10, 5, 50, 40), new Point(40, -5), new Size(5, 10), new Rectangle(10, 15, 55, 30)); // Right-top
AssertShift(visualZoomedCropController, new Rectangle(10, 5, 50, 40), new Point(-10, 35), new Size(5, 10), new Rectangle(15, 5, 45, 50)); // Left-bottom
AssertShift(visualZoomedCropController, new Rectangle(10, 5, 50, 40), new Point(40, 35), new Size(5, 10), new Rectangle(10, 5, 55, 50)); // Right-bottom
AssertShift(visualZoomedCropController, new Rectangle(10, 5, 50, 40), new Point(-10, 15), new Size(5, 10), new Rectangle(15, 5, 45, 40)); // Left
AssertShift(visualZoomedCropController, new Rectangle(10, 5, 50, 40), new Point(15, -5), new Size(5, 10), new Rectangle(10, 15, 50, 30)); // Top
AssertShift(visualZoomedCropController, new Rectangle(10, 5, 50, 40), new Point(40, 15), new Size(5, 10), new Rectangle(10, 5, 55, 40)); // Right
AssertShift(visualZoomedCropController, new Rectangle(10, 5, 50, 40), new Point(15, 35), new Size(5, 10), new Rectangle(10, 5, 50, 50)); // Bottom
}
void AssertShift(VisualZoomCropController visualZoomCropController, Rectangle initialCropRect, Point initialPoint, Size shiftSize, Rectangle expectedCropRect)
{
visualZoomCropController.SetCropRectForTest(initialCropRect);
visualZoomCropController.OnTouched(initialPoint);
var newPoint = new Point(initialPoint.X + shiftSize.Width, initialPoint.Y + shiftSize.Height);
visualZoomCropController.OnShift(newPoint);
Assert.AreEqual(expectedCropRect, visualZoomCropController.CropRect);
visualZoomCropController.OnUntouched(newPoint); // To prevent further unexpected shifting
}