colourutils

Some useful colour-related utility functions.

Functions Summary

AdjustAlpha	Adjust the alpha of a given colour
AdjustColour	Brighten/Darken input colour by percent and adjust alpha
BestLabelColour	Get the best color to use for the label that will be drawn on
GetHighlightColour	Get the default highlight color

Functions

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AdjustAlpha(colour, alpha)

Adjust the alpha of a given colour

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AdjustColour(color, percent, alpha=ALPHA_OPAQUE)

Brighten/Darken input colour by percent and adjust alpha channel if needed. Returns the modified color.

Parameters:

• color (Colour) – color object to adjust
• percent (integer) – percent to adjust +(brighten) or -(darken)
• alpha – amount to adjust alpha channel

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BestLabelColour(color, bw=False)

Get the best color to use for the label that will be drawn on top of the given color.

Parameters:

• color (Colour) – background color that text will be drawn on
• bw – If True, only return black or white

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GetHighlightColour()

Get the default highlight color

Returns:Colour