public void TestRestrictZoom()
{
// arrange
var restrictPanZoom = new RestrictPanZoom {
PanMode = RestrictPanMode.KeepCenterWithinExtents
};
var viewport = new Viewport {
Center = new Point(0, 0), Width = 100, Height = 100, Resolution = 1
};
// viewport.Center is (0, 0) at this point
var restrictTo = new BoundingBox(20, 40, 120, 140); // Minimal X value is 20, Minimal Y value is 40
// act
restrictPanZoom.RestrictPan(viewport, restrictTo);
// assert
Assert.AreEqual(viewport.Center.X, 20);
Assert.AreEqual(viewport.Center.Y, 40);
}
