def testRotate(self):
palette = Palette.from_flame_element(self.hex_flame_element)
palette.rotate(128)
rotated = self.data[-128:] + self.data[:-128]
for idx in range(256):
self.check_index(palette, idx, rotated[idx])
def testReverse(self):
palette = Palette.from_flame_element(self.hex_flame_element)
palette.reverse()
reversed = self.data[::-1]
for idx in range(256):
self.check_index(palette, idx, reversed[idx])
def testFromFlameElement(self):
sfd = StringIO(self.xml)
tree = etree.parse(sfd)
self.assertEquals(tree.getroot().tag, 'flame')
palette = Palette.from_flame_element(tree.getroot())
for idx in range(256):
self.check_index(palette, idx, self.data[idx])
def testSaturation(self):
palette = Palette.from_flame_element(self.hex_flame_element)
palette.saturation(5)
def adjust_saturation(c, v):
h, l, s = functions.rgb2hls(c)
return functions.hls2rgb((h, l, s + v))
adjusted = self.data[:]
for idx, c in enumerate(adjusted):
adjusted[idx] = adjust_saturation(c, 0.05)
for idx in range(256):
self.check_index(palette, idx, adjusted[idx])
def testFromFlameElement(self):
palette = Palette.from_flame_element(self.hex_flame_element)
for idx in range(256):
self.check_index(palette, idx, self.data[idx])
