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SickRage/lib/hachoir_parser/image/common.py

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from lib.hachoir_core.field import FieldSet, UserVector, UInt8
class RGB(FieldSet):
color_name = {
( 0, 0, 0): "Black",
(255, 0, 0): "Red",
( 0, 255, 0): "Green",
( 0, 0, 255): "Blue",
(255, 255, 255): "White",
}
static_size = 24
def createFields(self):
yield UInt8(self, "red", "Red")
yield UInt8(self, "green", "Green")
yield UInt8(self, "blue", "Blue")
def createDescription(self):
rgb = self["red"].value, self["green"].value, self["blue"].value
name = self.color_name.get(rgb)
if not name:
name = "#%02X%02X%02X" % rgb
return "RGB color: " + name
class RGBA(RGB):
static_size = 32
def createFields(self):
yield UInt8(self, "red", "Red")
yield UInt8(self, "green", "Green")
yield UInt8(self, "blue", "Blue")
yield UInt8(self, "alpha", "Alpha")
def createDescription(self):
description = RGB.createDescription(self)
opacity = self["alpha"].value*100/255
return "%s (opacity: %s%%)" % (description, opacity)
class PaletteRGB(UserVector):
item_class = RGB
item_name = "color"
def createDescription(self):
return "Palette of %u RGB colors" % len(self)
class PaletteRGBA(PaletteRGB):
item_class = RGBA
def createDescription(self):
return "Palette of %u RGBA colors" % len(self)