def on_mouse_left_down(self, event):
self.previous_window_position = event.GetPosition()
self.previous_scene_position = self.convert_window_to_scene(
self.previous_window_position)
self.corner_drag = None
for i, p in enumerate(self.perspective):
half = CORNER_SIZE / 2
if Point.distance(self.previous_scene_position, p) < half:
self.corner_drag = i
break
def on_mouse_left_down(self, event):
"""
Handle mouse left down event.
Used for adjusting perspective items.
:param event:
:return:
"""
self.previous_window_position = event.GetPosition()
self.previous_scene_position = self.convert_window_to_scene(
self.previous_window_position)
self.corner_drag = None
if self.perspective is not None:
for i, p in enumerate(self.perspective):
half = CORNER_SIZE / 2
if Point.distance(self.previous_scene_position, p) < half:
self.corner_drag = i
break
def on_button_align_trace_hull(
self, event): # wxGlade: Navigation.<event_handler>
pts = []
for obj in self.elements:
if isinstance(obj, Path):
epath = abs(obj)
pts += [q for q in epath.as_points()]
elif isinstance(obj, SVGImage):
bounds = obj.bbox()
pts += [(bounds[0], bounds[1]), (bounds[0], bounds[3]),
(bounds[2], bounds[1]), (bounds[2], bounds[3])]
hull = [p for p in Point.convex_hull(pts)]
if len(hull) == 0:
return
def trace_hull():
yield COMMAND_WAIT_BUFFER_EMPTY
yield COMMAND_LASER_OFF
for p in hull:
yield COMMAND_RAPID_MOVE, p
self.device.send_job(trace_hull)
def find_hit_chain(self, position):
self.hit_chain.clear()
for current_widget, current_matrix in self.hittable_elements:
hit_point = Point(current_matrix.point_in_inverse_space(position))
if current_widget.contains(hit_point.x, hit_point.y):
self.hit_chain.append((current_widget, current_matrix))
def __init__(self, x, y=None):
Point.__init__(self, x, y)
self.connections = []
self.visited = 0