def test_simple(self):
""" Test distance using easy geometry """
a = (0, 0)
b = (1, 0)
# Move the point along another line segment at 1 unit away
for e in ((0, 1), (0.5, 1), (1, 1), (0.5, -1)):
dist = perpendicular_distance(a, b, e)
self.assertAlmostEqual(dist, 1)
# Move the point along the original segment itself => dist == 0
for e in ((0, 0), (0.5, 0), (1, 0)):
dist = perpendicular_distance(a, b, e)
self.assertAlmostEqual(dist, 0)
def test_simple(self):
""" Test distance using easy geometry """
a = (0, 0)
b = (1, 0)
# Move the point along another line segment at 1 unit away
for e in ((0, 1), (0.5, 1), (1, 1), (0.5, -1)):
dist = perpendicular_distance(a, b, e)
self.assertAlmostEqual(dist, 1)
# Move the point along the original segment itself => dist == 0
for e in ((0, 0), (0.5, 0), (1, 0)):
dist = perpendicular_distance(a, b, e)
self.assertAlmostEqual(dist, 0)
def get_hover(self, vpos):
""" Check if the given position is on/near a selection edge or inside the selection
:return: (bool) Return False if not hovering, or the type of hover
"""
if self.v_edges:
vx, vy = vpos
# If position outside outer box
if (not self.v_edges["o_l"] < vx < self.v_edges["o_r"]
or not self.v_edges["o_t"] < vy < self.v_edges["o_b"]):
return gui.HOVER_NONE
if self.edit_mode == EDIT_MODE_BOX:
# If position inside inner box
if (self.v_edges["i_l"] < vx < self.v_edges["i_r"]
and self.v_edges["i_t"] < vy < self.v_edges["i_b"]):
# logging.debug("Selection hover")
return gui.HOVER_SELECTION
else:
hover = gui.HOVER_NONE
if vx < self.v_edges["i_l"]:
# logging.debug("Left edge hover")
hover |= gui.HOVER_LEFT_EDGE
elif vx > self.v_edges["i_r"]:
# logging.debug("Right edge hover")
hover |= gui.HOVER_RIGHT_EDGE
if vy < self.v_edges["i_t"]:
logging.debug("Top edge hover")
hover |= gui.HOVER_TOP_EDGE
elif vy > self.v_edges["i_b"]:
logging.debug("Bottom edge hover")
hover |= gui.HOVER_BOTTOM_EDGE
return hover
elif self.edit_mode == EDIT_MODE_POINT:
if (self.v_edges["s_l"] < vx < self.v_edges["s_r"]
and self.v_edges["s_t"] < vy < self.v_edges["s_b"]):
return gui.HOVER_START
elif (self.v_edges["e_l"] < vx < self.v_edges["e_r"]
and self.v_edges["e_t"] < vy < self.v_edges["e_b"]):
return gui.HOVER_END
elif (
# If position inside inner box
self.v_edges["i_l"] < vx < self.v_edges["i_r"]
and self.v_edges["i_t"] < vy < self.v_edges["i_b"]):
dist = util.perpendicular_distance(self.select_v_start_pos,
self.select_v_end_pos,
vpos)
if dist < self.hover_margin:
return gui.HOVER_LINE
return gui.HOVER_NONE
def test_null_line(self):
""" Test distance when the line is just a single point"""
a = (1, 0)
b = (1, 0)
e = (0, 0)
# Follow a segment at 1 unit away
dist = perpendicular_distance(a, b, e)
self.assertAlmostEqual(dist, 1)
def test_null_line(self):
""" Test distance when the line is just a single point"""
a = (1, 0)
b = (1, 0)
e = (0, 0)
# Follow a segment at 1 unit away
dist = perpendicular_distance(a, b, e)
self.assertAlmostEqual(dist, 1)
def get_hover(self, vpos):
""" Check if the given position is on/near a selection edge or inside the selection
:return: (bool) Return False if not hovering, or the type of hover
"""
if self.v_edges:
vx, vy = vpos
# If position outside outer box
if (
not self.v_edges["o_l"] < vx < self.v_edges["o_r"] or
not self.v_edges["o_t"] < vy < self.v_edges["o_b"]
):
return gui.HOVER_NONE
if self.edit_mode == EDIT_MODE_BOX:
# If position inside inner box
if (
self.v_edges["i_l"] < vx < self.v_edges["i_r"] and
self.v_edges["i_t"] < vy < self.v_edges["i_b"]
):
# logging.debug("Selection hover")
return gui.HOVER_SELECTION
else:
hover = gui.HOVER_NONE
if vx < self.v_edges["i_l"]:
# logging.debug("Left edge hover")
hover |= gui.HOVER_LEFT_EDGE
elif vx > self.v_edges["i_r"]:
# logging.debug("Right edge hover")
hover |= gui.HOVER_RIGHT_EDGE
if vy < self.v_edges["i_t"]:
logging.debug("Top edge hover")
hover |= gui.HOVER_TOP_EDGE
elif vy > self.v_edges["i_b"]:
logging.debug("Bottom edge hover")
hover |= gui.HOVER_BOTTOM_EDGE
return hover
elif self.edit_mode == EDIT_MODE_POINT:
if (
self.v_edges["s_l"] < vx < self.v_edges["s_r"] and
self.v_edges["s_t"] < vy < self.v_edges["s_b"]
):
return gui.HOVER_START
elif (
self.v_edges["e_l"] < vx < self.v_edges["e_r"] and
self.v_edges["e_t"] < vy < self.v_edges["e_b"]
):
return gui.HOVER_END
elif (
# If position inside inner box
self.v_edges["i_l"] < vx < self.v_edges["i_r"] and
self.v_edges["i_t"] < vy < self.v_edges["i_b"]
):
dist = util.perpendicular_distance(self.select_v_start_pos,
self.select_v_end_pos,
vpos)
if dist < self.hover_margin:
return gui.HOVER_LINE
return gui.HOVER_NONE
