def test_dragging_without_edit_mode(polygon: Polygon): assume(len(polygon) > 4) canvas = PolygonAnnotationCanvas() canvas.editing = False canvas.polygons = [polygon] point_to_drag = polygon.points[0] point_target = (50, 50) canvas.on_click(*point_to_drag) canvas.on_drag(*point_target) # test point has not moved assert canvas.polygons[0].points[0] == point_to_drag
def test_drawing_invokes_canvas_fill_arc_in_edit_mode(data: List[Polygon]): assume(len(data) > 1) canvas = PolygonAnnotationCanvas() canvas.load_image(IMAGE) print(canvas.image_extent) canvas.editing = True with patch.object(ipycanvas.Canvas, "fill_arcs") as mock_fill_arcs: canvas.data = [poly.data for poly in data] for polygon in data: for point in polygon.points: assert canvas.image_to_canvas_coordinates(point) == point if len(polygon.points) > 1: mock_fill_arcs.assert_any_call( polygon.xy_lists[0], polygon.xy_lists[1], canvas.point_size, 0, 2 * pi, )
def test_editing_mode(polygon: Polygon, polygons: List[Polygon]): assume(len(polygon) > 2) canvas = PolygonAnnotationCanvas() # canvas.polygons = polygons canvas.current_polygon = polygon pre_move_points = polygon.points.copy() canvas.editing = True # test that dragging is none by default assert canvas.dragging is None # clicking on a point sets drag function: point_to_drag = polygon.points[0] point_target = (50, 50) canvas.on_click(*point_to_drag) assert canvas.dragging is not None # moving mouse moves the point: canvas.on_drag(*point_target) canvas.on_release(*point_target) # test point has moved assert canvas.current_polygon.points[0] == (50, 50) # test everything else stayed put assert canvas.current_polygon.points[1:] == pre_move_points[1:] # test release re-set dragging assert canvas.dragging is None # test undoing moves the point back callback = canvas._undo_queue.pop() callback() assert canvas.current_polygon.points == pre_move_points