HTk.Kernel.Colour

Basic types and classes for coloured resources.

Documentation

class ColourDesignator c where

Datatypes that describe a colour instantiate the class ColourDesignator.

Minimal complete definition

toColour

Methods

toColour :: c -> Colour

Instances

ColourDesignator Colour

A colour itself describes a colour.

Methods

toColour :: Colour -> Colour

ColourDesignator [Char]

Strings like "red", "blue" etc. decribe colours.

Methods

toColour :: [Char] -> Colour

ColourDesignator (Double, Double, Double)

A tuple of rgb values describes a colour.

Methods

toColour :: (Double, Double, Double) -> Colour

ColourDesignator (Int, Int, Int)

A tuple of rgb values describes a colour.

Methods

toColour :: (Int, Int, Int) -> Colour

newtype Colour

The Colour datatype.

Constructors

Colour String

Instances

Read Colour

Internal.

Methods

readsPrec :: Int -> ReadS Colour

readList :: ReadS [Colour]

readPrec :: ReadPrec Colour

readListPrec :: ReadPrec [Colour]

Show Colour

Internal.

Methods

showsPrec :: Int -> Colour -> ShowS

show :: Colour -> String

showList :: [Colour] -> ShowS

GUIValue Colour

Internal.

Methods

cdefault :: Colour

toGUIValue :: Colour -> GUIVALUE

maybeGUIValue :: GUIVALUE -> Maybe Colour

fromGUIValue :: GUIVALUE -> Colour

ColourDesignator Colour

A colour itself describes a colour.

Methods

toColour :: Colour -> Colour

CursorDesignator (String, Colour)

A tuple of (String,Colour) describes a coloured standard X cursor.

Methods

toCursor :: (String, Colour) -> Cursor

CursorDesignator (String, Colour, Colour)

A tuple of (String,Colour,Colour) describes a standard X cursor with foreground and background colour.

Methods

toCursor :: (String, Colour, Colour) -> Cursor

CursorDesignator ([Char], [Char], Colour, Colour)

A tuple of (String,String,Colour,Colour) describes a bitmap cursor with its X bitmap filename, mask filename, foreground and background colour.

Methods

toCursor :: ([Char], [Char], Colour, Colour) -> Cursor