def get_handle_guides(self, hit_point):
index = self.edit_points.index(hit_point)
opp_handle_index = (index + 2) % 4;
opp_handle = self.edit_points[opp_handle_index]
guide_1_handle = self.edit_points[(opp_handle_index - 1) % 4]
guide_2_handle = self.edit_points[(opp_handle_index + 1) % 4]
guide_1 = viewgeom.get_vec_for_points(opp_handle.get_pos(), guide_1_handle.get_pos())
guide_2 = viewgeom.get_vec_for_points(opp_handle.get_pos(), guide_2_handle.get_pos())
guide_1.point_index = (opp_handle_index - 1) % 4
guide_2.point_index = (opp_handle_index + 1) % 4
return (guide_1, guide_2)
def get_handle_guides(self, hit_point):
index = self.edit_points.index(hit_point)
opp_handle_index = (index + 2) % 4;
opp_handle = self.edit_points[opp_handle_index]
guide_1_handle = self.edit_points[(opp_handle_index - 1) % 4]
guide_2_handle = self.edit_points[(opp_handle_index + 1) % 4]
guide_1 = viewgeom.get_vec_for_points(opp_handle.get_pos(), guide_1_handle.get_pos())
guide_2 = viewgeom.get_vec_for_points(opp_handle.get_pos(), guide_2_handle.get_pos())
guide_1.point_index = (opp_handle_index - 1) % 4
guide_2.point_index = (opp_handle_index + 1) % 4
return (guide_1, guide_2)
def _shape_press_event(self):
self.start_edit_points = copy.deepcopy(self.edit_points)
if self.current_mouse_hit == X_SCALE_HANDLE:
self.guide = viewgeom.get_vec_for_points((self.shape_x,self.shape_y), self.edit_points[X_SCALE_HANDLE])
elif self.current_mouse_hit == Y_SCALE_HANDLE:
self.guide = viewgeom.get_vec_for_points((self.shape_x,self.shape_y), self.edit_points[Y_SCALE_HANDLE])
elif self.current_mouse_hit == ROTATION_HANDLE:
ax, ay = self.edit_points[POS_HANDLE]
zero_deg_point = (ax, ay + 10)
m_end_point = (self.get_screen_x(self.mouse_start_x), self.get_screen_y(self.mouse_start_y))
self.mouse_start_rotation = viewgeom.get_angle_in_deg(zero_deg_point, self.edit_points[POS_HANDLE], m_end_point)
self.mouse_rotation_last = 0.0
self.rotation_value_start = self.rotation
elif self.current_mouse_hit == POS_HANDLE or self.current_mouse_hit == AREA_HIT:
self.start_shape_x = self.shape_x
self.start_shape_y = self.shape_y
def _get_legal_point(self, x, y):
vec = viewgeom.get_vec_for_points((self.CENTER_X, self.CENTER_Y), (x, y))
dist = vec.get_length()
if dist < self.MAX_DIST:
return (x, y)
new_vec = vec.get_multiplied_vec(self.MAX_DIST / dist )
return new_vec.end_point
def get_side_for_index(self, side_index):
start = self.curve_points[side_index].get_pos()
if side_index < len(self.curve_points) - 1:
end = self.curve_points[side_index + 1].get_pos()
else:
end = self.curve_points[0].get_pos()
return viewgeom.get_vec_for_points(start, end)
def get_straight_line_handle_places(self, cp_index):
prev_i = cp_index - 1
next_i = cp_index + 1
if next_i == len(self.curve_points):
next_i = 0
if prev_i < 0:
prev_i = len(self.curve_points) - 1
prev_p = self.curve_points[prev_i].get_pos()
next_p = self.curve_points[next_i].get_pos()
p = self.curve_points[cp_index].get_pos()
forward = viewgeom.get_vec_for_points(p, next_p)
back = viewgeom.get_vec_for_points(p, prev_p)
forward = forward.get_multiplied_vec(0.3)
back = back.get_multiplied_vec(0.3)
return (back.end_point, forward.end_point)
def _shape_press_event(self):
self.start_edit_points = copy.deepcopy(self.edit_points)
if self.current_mouse_hit == X_SCALE_HANDLE:
self.guide = viewgeom.get_vec_for_points(
(self.shape_x, self.shape_y), self.edit_points[X_SCALE_HANDLE])
elif self.current_mouse_hit == Y_SCALE_HANDLE:
self.guide = viewgeom.get_vec_for_points(
(self.shape_x, self.shape_y), self.edit_points[Y_SCALE_HANDLE])
elif self.current_mouse_hit == ROTATION_HANDLE:
ax, ay = self.edit_points[POS_HANDLE]
zero_deg_point = (ax, ay + 10)
m_end_point = (self.get_screen_x(self.mouse_start_x),
self.get_screen_y(self.mouse_start_y))
self.mouse_start_rotation = viewgeom.get_angle_in_deg(
zero_deg_point, self.edit_points[POS_HANDLE], m_end_point)
self.mouse_rotation_last = 0.0
self.rotation_value_start = self.rotation
elif self.current_mouse_hit == POS_HANDLE or self.current_mouse_hit == AREA_HIT:
self.start_shape_x = self.shape_x
self.start_shape_y = self.shape_y
def get_point_dist_from_seq(self, p, seq_index):
start = self.curve_points[seq_index].get_pos()
if seq_index < len(self.curve_points) - 1:
end = self.curve_points[seq_index + 1].get_pos()
else:
end = self.curve_points[0].get_pos()
seq = viewgeom.get_vec_for_points(start, end)
if seq.point_is_between(p) == True:
dist = seq.get_distance_vec(p)
return abs(dist.get_length())
else:
return -1
def get_distance(self, p):
vec = viewgeom.get_vec_for_points((self.CENTER_X, self.CENTER_Y), p)
dist = vec.get_length()
return dist/self.MAX_DIST