def mix_wx_color(ratio, color1, color2):
'''Mix two wxPython colors according to the given `ratio`.'''
rgb = color_tools.mix_rgb(
ratio,
wx_color_to_rgb(color1),
wx_color_to_rgb(color2)
)
return rgb_to_wx_color(rgb)
def make_bitmap(lightness=1, saturation=1):
'''Make the bitmap of the color wheel.'''
bitmap = wx.EmptyBitmap(BIG_LENGTH, BIG_LENGTH)
assert isinstance(bitmap, wx.Bitmap)
dc = wx.MemoryDC(bitmap)
dc.SetBrush(wx_tools.colors.get_background_brush())
dc.SetPen(wx.TRANSPARENT_PEN)
dc.DrawRectangle(-5, -5, BIG_LENGTH + 10, BIG_LENGTH + 10)
center_x = center_y = BIG_LENGTH // 2
background_color_rgb = wx_tools.colors.wx_color_to_rgb(
wx_tools.colors.get_background_color()
)
for x, y in cute_iter_tools.product(xrange(BIG_LENGTH),
xrange(BIG_LENGTH)):
# This is a big loop so the code is optimized to keep it fast.
rx, ry = (x - center_x), (y - center_y)
distance = (rx ** 2 + ry ** 2) ** 0.5
if (SMALL_RADIUS - AA_THICKNESS) <= distance <= \
(BIG_RADIUS + AA_THICKNESS):
angle = -math.atan2(rx, ry)
hue = (angle + math.pi) / two_pi
rgb = colorsys.hls_to_rgb(hue, lightness, saturation)
if abs(distance - RADIUS) > HALF_THICKNESS:
# This pixel requires some anti-aliasing.
if distance < RADIUS:
aa_distance = SMALL_RADIUS - distance
else: # distance > RADIUS
aa_distance = distance - BIG_RADIUS
aa_ratio = aa_distance / AA_THICKNESS
rgb = color_tools.mix_rgb(
aa_ratio,
background_color_rgb,
rgb
)
color = wx_tools.colors.rgb_to_wx_color(rgb)
pen = wx.Pen(color)
dc.SetPen(pen)
dc.DrawPoint(x, y)
return bitmap
def test():
''' '''
assert color_tools.mix_rgb(0.5, (0, 1, 0.5), (1, 0, 0)) == (0.5, 0.5, 0.25)
def mix_wx_color(ratio, color1, color2):
'''Mix two wxPython colors according to the given `ratio`.'''
rgb = color_tools.mix_rgb(ratio, wx_color_to_rgb(color1),
wx_color_to_rgb(color2))
return rgb_to_wx_color(rgb)
def test():
''' '''
assert color_tools.mix_rgb(0.5, (0, 1, 0.5), (1, 0, 0)) == (0.5, 0.5, 0.25)
