def create_refresh_button():
button_area = shapes.Rectangle(0, 0, 30, 30)
button = rendering.Button(button_area)
points = []
dy = None
y = 0
for angle in range(0, 270, 15):
point_outer = (-math.sin(math.radians(angle)) * 9,
-math.cos(math.radians(angle)) * 9)
point_inner = (-math.sin(math.radians(angle)) * 7,
-math.cos(math.radians(angle)) * 7)
points.append(point_outer)
points.insert(0, point_inner)
if dy is None:
dy = (point_outer[1] - point_inner[1])
y = (point_outer[1] + point_inner[1]) / 2
polygon_points = [(5, y), (0, y + 5), (0, y - 5)]
arrow = shapes.Polygon(polygon_points)
open_circle = shapes.Polygon(points)
shape_graphic = rendering.SimpleMonoColouredGraphic(
open_circle, colours.GREEN)
arrow_graphic = rendering.SimpleMonoColouredGraphic(arrow, colours.GREEN)
old_pos = (open_circle.left, open_circle.down)
button.add_and_center_canvas(shape_graphic)
new_pos = (open_circle.left, open_circle.down)
arrow.translate([x - y for x, y in zip(new_pos, old_pos)])
button.add_canvas(arrow_graphic)
return button
def create_play_button():
button_area = shapes.Rectangle(0, 0, 30, 30)
button_icon = shapes.Polygon([(6, 0), (-6, -10), (-6, 10)])
# self.button_graphic_background = rendering.SimpleMonoColouredGraphic(button_rect_background, )
button_graphic_icon = rendering.SimpleMonoColouredGraphic(
button_icon, colours.GREEN)
button = rendering.Button(button_area)
button.add_and_center_canvas(button_graphic_icon)
return button
def create_pause_button():
button_area = shapes.Rectangle(0, 0, 30, 30)
button = rendering.Button(button_area)
for x in (-4, 4):
button_icon_left = shapes.Rectangle(0, 0, 6, 20)
button_graphic_icon = rendering.SimpleMonoColouredGraphic(
button_icon_left, colours.grey(100))
button.add_and_center_canvas(button_graphic_icon)
button_graphic_icon.translate((x, 0))
return button
def create_time_warp_button(increase):
button = rendering.RectangularButton((30, 30))
c = 1 if increase else -1
for dx in [-5, 5]:
button_icon = shapes.Polygon([(3 * c, 0), (-3 * c, -10), (-3 * c, 10)])
# self.button_graphic_background = rendering.SimpleMonoColouredGraphic(button_rect_background, )
button_graphic = rendering.SimpleMonoColouredGraphic(
button_icon, colours.GREEN)
button.add_and_center_canvas(button_graphic)
button_graphic.translate((dx, 0))
return button
def create_visualise_bounding_button():
button_area = shapes.Rectangle(0, 0, 30, 30)
button = rendering.Button(button_area)
icon_shapes = [
shapes.Circle((8, 10), 7),
shapes.LineSegment((5, 28), (28, 18))
]
for shape in icon_shapes:
if shape.has_area():
shape_graphic = rendering.SimpleMonoColouredGraphic(
shape, colours.BLUE)
else:
shape_graphic = rendering.SimpleOutlineGraphic(shape, colours.BLUE)
button.add_canvas(shape_graphic)
button.add_canvas(
rendering.SimpleOutlineGraphic(shape.to_bounding_rectangle(),
colours.RED))
return button