def extend_color(self, color_data, palette):
"""
:param color_data:
:param palette:
:return: palette, data_index
"""
color_set = set()
for color in color_data:
color_set.add(color)
if palette.can_extend(color_set):
return palette, palette.extend(color_data)
for pal in self._palettes:
if pal is palette:
continue
if pal.can_extend(color_set):
return pal, pal.extend(color_data)
palette = Palette(self, 'palette_%d' % (len(self._palettes) + 1), [])
self.add_palette(palette)
if palette.can_extend(color_set, 65536):
return palette, palette.extend(color_data)
assert False
