def rectangle(img, area: Extent, color, border_thickness):
cv.rectangle(img,
area.get_upper_left().as_point(),
area.get_lower_right().as_point(), color,
border_thickness)
class UIStructureBlock(UIElement):
def __init__(self,
config: Configurator,
position: Vector,
size: Vector,
color: List = None,
border_color: List = None,
border_weight: float = None):
super().__init__()
# overwrite none values with defaults
if color is None:
color = config.get("ui_settings", "nav_block_background_color")
if border_color is None:
border_color = config.get("ui_settings", "nav_block_border_color")
if border_weight is None:
border_weight = config.get("ui_settings",
"nav_block_border_weight")
# set block position/size
self.position = position # only modify with set_position
self.size = size # only modify with set_size
self.area = Extent.from_vectors(position, position + size,
False) # only modify with set_area
self.is_ellipse = False
# set block color
self.color = (color[0], color[1], color[2])
self.show_background_color = True
self.border_thickness: float = border_weight
self.border_color = (border_color[0], border_color[1], border_color[2])
self.show_border = True
# draws the block onto an image
def draw(self, img):
if self.visible:
self.draw_background(img, self.color)
self.draw_border(img, self.border_color)
self.draw_hierarchy(img)
# draws the background of the structure block onto an image
def draw_background(self, img, color, force=False):
if self.show_background_color or force:
if self.is_ellipse:
# draw ellipse
UIStructureBlock.ellipse(img, self.get_global_area(), color,
cv.FILLED)
else:
# draw rect
UIStructureBlock.rectangle(img, self.get_global_area(), color,
cv.FILLED)
# draws the border of the structure block onto an image
def draw_border(self, img, color, force=False):
if self.show_border or force:
if self.is_ellipse:
# draw ellipse
UIStructureBlock.ellipse(img, self.get_global_area(), color,
self.border_thickness)
else:
# draw rect
UIStructureBlock.rectangle(img, self.get_global_area(), color,
self.border_thickness)
# checks if a given brick lies on top of the block or any of it's children
def brick_on_element(self, brick: Brick) -> bool:
if self.visible:
return super().brick_on_element(brick) or self.pos_on_block(
Vector.from_brick(brick))
return False
# checks if a given (unconfirmed) brick would land on top of the block or any of it's children
def brick_would_land_on_element(self, brick: Brick) -> bool:
if self.visible:
return super().brick_would_land_on_element(
brick) or self.pos_on_block(Vector.from_brick(brick))
return False
# checks if any screen coordinate lies on top of
def pos_on_block(self, pos: Vector) -> bool:
if self.visible:
return self.get_global_area().vector_inside(pos)
return False
# get the global area as extent
def get_global_area(self) -> Extent:
pos = self.get_global_pos()
return Extent.from_vectors(pos, pos + self.size)
# overwrites current position
# also updates area
def set_position(self, pos: Vector):
self.area.move_by(pos - self.position)
super().set_position(pos)
# overwrites current size and updates area
def set_size(self, size: Vector):
self.area = Extent(self.area.get_upper_left(), self.position + size)
self.size = size
# overwrites current area and updates size and position
def set_area(self, area: Extent):
self.position = area.get_upper_left
self.size = area.get_size()
self.area = area
# draws a rectangle using a given area
@staticmethod
def rectangle(img, area: Extent, color, border_thickness):
cv.rectangle(img,
area.get_upper_left().as_point(),
area.get_lower_right().as_point(), color,
border_thickness)
# draws a rectangle using a given area
@staticmethod
def ellipse(img, area: Extent, color, border_thickness):
cv.ellipse(img,
area.get_center().as_point(),
(area.get_size() / 2).as_point(), 0, 0, 360, color,
border_thickness)