Color.from_string
Description:
Parses a string definition of a color, filling the red,
green, blue
and alpha fields of color
.
The color
is not allocated.
The format of str
can be either one of:
- a standard name (as taken from the X11 rgb.txt file) - an hexadecimal value in the form: `#rgb`, `#rrggbb`, `#rgba`, or `#rrggbbaa` - a RGB color in the form: `rgb(r, g, b)` - a RGB color in the form: `rgba(r, g, b, a)` - a HSL color in the form: `hsl(h, s, l)` -a HSL color in the form: `hsla(h, s, l, a)`
where 'r', 'g', 'b' and 'a' are (respectively) the red, green, blue color intensities and the opacity. The 'h', 's' and 'l' are (respectively) the hue, saturation and luminance values.
In the rgb
and rgba
formats, the 'r', 'g', and 'b' values are either integers between 0 and 255, or percentage values
in the range between 0% and 100%; the percentages require the '%' character. The 'a' value, if specified, can only be a floating point value
between 0.0 and 1.0.
In the hls
and hlsa
formats, the 'h' value (hue) is an angle between 0 and 360.0 degrees; the 'l' and 's' values
(luminance and saturation) are percentage values in the range between 0% and 100%. The 'a' value, if specified, can only be a floating point
value between 0.0 and 1.0.
Whitespace inside the definitions is ignored; no leading whitespace is allowed.
If the alpha component is not specified then it is assumed to be set to be fully opaque.
Parameters:
str |
a string specifiying a color |
color |
return location for a Color |
Returns:
|