Secure your code as it's written. Use Snyk Code to scan source code in minutes - no build needed - and fix issues immediately.
def test_hue2col(self):
self.assertEqual(tkf.hue2col(0), (255, 0, 0))
self.assertRaises(ValueError, tkf.hue2col, 365)
self.assertRaises(ValueError, tkf.hue2col, -20)
def test_hue2col(self):
self.assertEqual(tkf.hue2col(0), (255, 0, 0))
self.assertRaises(ValueError, tkf.hue2col, 365)
self.assertRaises(ValueError, tkf.hue2col, -20)
def _fill(self):
"""Create the gradient."""
r, g, b = hue2col(self._hue)
width = self.winfo_width()
height = self.winfo_height()
h = float(height - 1)
w = float(width - 1)
if height:
c = [(r + i / h * (255 - r), g + i / h * (255 - g), b + i / h * (255 - b)) for i in range(height)]
data = []
for i in range(height):
line = []
for j in range(width):
rij = round2(j / w * c[i][0])
gij = round2(j / w * c[i][1])
bij = round2(j / w * c[i][2])
color = rgb_to_hexa(rij, gij, bij)
line.append(color)
data.append("{" + " ".join(line) + "}")
def _draw_gradient(self, hue):
"""Draw the gradient and put the cursor on hue."""
self.delete("gradient")
self.delete("cursor")
del self.gradient
width = self.winfo_width()
height = self.winfo_height()
self.gradient = tk.PhotoImage(master=self, width=width, height=height)
line = []
for i in range(width):
line.append(rgb_to_hexa(*hue2col(float(i) / width * 360)))
line = "{" + " ".join(line) + "}"
self.gradient.put(" ".join([line for j in range(height)]))
self.create_image(0, 0, anchor="nw", tags="gardient",
image=self.gradient)
self.lower("gradient")
x = hue / 360. * width
self.create_line(x, 0, x, height, width=2, tags='cursor')
:param hue: hue (between 0 and 360) of the color square gradient
(color in top right corner is (hue, 100, 100) in HSV)
:type hue: int
:param color: initially selected color given in HSV format
:type color: tuple[int]
:param height: height of the widget in pixels
:type height: int
:param width: width of the widget in pixels
:type width: int
:param kwargs: options to be passed on to the :class:`tk.Canvas` initializer
"""
tk.Canvas.__init__(self, parent, height=height, width=width, **kwargs)
self.bg = tk.PhotoImage(width=width, height=height, master=self)
self._hue = hue
if not color:
color = hue2col(self._hue)
self.bind('', lambda e: self._draw(color))
self.bind('', self._on_click)
self.bind('', self._on_move)