Widgets maintains a database of standard RGB colours for a predefined set of named colours (such as ``BLACK’’, ``LIGHT GREY’‘). The application may add to this set if desired by using add_colour and may use it to look up colours by names using Find or find the names for the standard colour suing find_name.
There is one predefined instance of this class called TheColourDatabase.
None
The standard database contains at least the following colours:
AQUAMARINE, BLACK, BLUE, BLUE VIOLET, BROWN, CADET BLUE, CORAL, CORNFLOWER BLUE, CYAN, DARK GREY, DARK GREEN, DARK OLIVE GREEN, DARK ORCHID, DARK SLATE BLUE, DARK SLATE GREY DARK TURQUOISE, DIM GREY, FIREBRICK, FOREST GREEN, GOLD, GOLDENROD, GREY, GREEN, GREEN YELLOW, INDIAN RED, KHAKI, LIGHT BLUE, LIGHT GREY, LIGHT STEEL BLUE, LIME GREEN, MAGENTA, MAROON, MEDIUM AQUAMARINE, MEDIUM BLUE, MEDIUM FOREST GREEN, MEDIUM GOLDENROD, MEDIUM ORCHID, MEDIUM SEA GREEN, MEDIUM SLATE BLUE, MEDIUM SPRING GREEN, MEDIUM TURQUOISE, MEDIUM VIOLET RED, MIDNIGHT BLUE, NAVY, ORANGE, ORANGE RED, ORCHID, PALE GREEN, PINK, PLUM, PURPLE, RED, SALMON, SEA GREEN, SIENNA, SKY BLUE, SLATE BLUE, SPRING GREEN, STEEL BLUE, TAN, THISTLE, TURQUOISE, VIOLET, VIOLET RED, WHEAT, WHITE, YELLOW, YELLOW GREEN.
add_colour(String colourName, Colour colour)add_colour(String colourName, Colour colour)Adds a colour to the database. If a colour with the same name already exists, it is replaced.
Please note that the overload taking a pointer is deprecated and will be removed in the next Widgets version, please don’t use it.
Colour find(String colourName)Finds a colour given the name. Returns an invalid colour object (that is, such that its Ok() method returns ) if the colour wasn’t found in the database.
String find_name(Colour colour)Finds a colour name given the colour. Returns an empty string if the colour is not found in the database.
[This page automatically generated from the Textile source at Thu May 01 00:50:34 +0100 2008]