def fill_missing_colors(self):
"""
Generates any missing colors based on average saturation and value,
and the sum and difference of the default hue and average hue
difference (between adjacent colors).
"""
assert len(self) >= 2, "Need at least 2 colors in palette to continue"
hue_diff = self.get_average_difference_from_target("hue")
avg_saturation, avg_value = map(self.get_average_value, ("saturation", "value"))
colors = sorted(self.target.items(), key=lambda (name, rgb): rgb)
for index in range(len(colors)):
name, rgb = colors[index]
if name in self:
continue
default_color = Color(*rgb)
candidates = []
if (default_color.hue - hue_diff) >= 0:
candidates.append(Color.from_hsv([default_color.hue - hue_diff, avg_saturation, avg_value]))
if (default_color.hue + hue_diff) <= 360:
candidates.append(Color.from_hsv([default_color.hue + hue_diff, avg_saturation, avg_value]))
elif (default_color.hue + hue_diff) > 360:
print name, (default_color.hue - hue_diff) % 360
self[name] = map(lambda candidate: (candidate, default_color.distance(candidate)), candidates)
def read(self, filename):
self.rc = SimpleResourceCollection(filename)
colors = map(lambda i: find_key("color" + str(i), self.rc.db), range(16))
if not any(colors):
raise ConverterError("xrdb does not contain any color info")
for index, color in enumerate(colors):
self._palette.set_color(Color.from_string(color), index)
return self._palette
def on_file_new_activate(self, widget):
self.set_palette(
NumberedPalette(
16,
colors=map(lambda color: Color(*HTML4_COLORS[color]),
("black", "maroon", "green", "olive", "navy",
"purple", "teal", "silver", "gray", "red", "lime",
"yellow", "blue", "magenta", "cyan", "white"))))
self.current_file = ()
def get_palette(self):
palette = NumberedPalette(16)
for index in range(16):
button = self.builder.get_object("colorbutton" + str(index + 1))
color = button.get_color()
palette.set_color(
Color(*map(lambda c: round(c / 256), (color.red, color.green,
color.blue))), index)
return palette
