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docs: Clean up clutter_color_from_string()

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Add hsl() and hsla() formats, and clean up the wording.
This commit is contained in:
Emmanuele Bassi 2010-12-08 13:59:53 +00:00
parent ca7dc2f951
commit c454526bbb
1 changed files with 37 additions and 17 deletions
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54
clutter/clutter-color.c
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@ -621,41 +621,61 @@ parse_hsla (ClutterColor *color,
/**
* clutter_color_from_string:
* @color: (out caller-allocates): return location for a #ClutterColor
* @str: a string specifiying a color (named color or #RRGGBBAA)
* @str: a string specifiying a color
*
* Parses a string definition of a color, filling the
* <structfield>red</structfield>, <structfield>green</structfield>,
* <structfield>blue</structfield> and <structfield>alpha</structfield>
* channels of @color. If alpha is not specified it will be set full opaque.
* channels of @color.
*
* The @color is not allocated.
*
* The format of @str can be either one of:
*
* <itemizedlist>
* <listitem><para>a standard name (taken from the X11 rgb.txt
* file");</para></listitem>
* <listitem><para>an hexadecimal value in the form: '#rgb', '#rrggbb',
* '#rgba' or '#rrggbbaa';</para></listitem>
* <listitem><para>a RGB color in the form 'rgb(r, g, b)';</para></listitem>
* <listitem><para>a RGBA color in the form 'rgba(r, g, b,
* a)';</para></listitem>
* <listitem>
* <para>a standard name (as taken from the X11 rgb.txt file)</para>
* </listitem>
* <listitem>
* <para>an hexadecimal value in the form: <literal>&num;rgb</literal>,
* <literal>&num;rrggbb</literal>, <literal>&num;rgba</literal> or
* <literal>&num;rrggbbaa</literal></para>
* </listitem>
* <listitem>
* <para>a RGB color in the form: <literal>rgb(r, g, b)</literal></para>
* </listitem>
* <listitem>
* <para>a RGB color in the form: <literal>rgba(r, g, b, a)</literal></para>
* </listitem>
* <listitem>
* <para>a HSL color in the form: <literal>hsl(h, s, l)</literal></para>
* </listitem>
* <litsitem>
* <para>a HSL color in the form: <literal>hsla(h, s, l, a)</literal></para>
* </listitem>
* </itemizedlist>
*
* where 'r', 'g', 'b' and 'a' are (respectively) the red, green, blue and
* alpha color values.
* 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 last two cases, 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,
* 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) it's an angle between
* 0 and 360.0 degrees; the 'l' and 's' values (luminance and saturation) are
* a floating point value between 0.0 and 1.0. The 'a' value, if specified,
* can only be a floating point value between 0.0 and 1.0.
*
* Whitespace is ignored.
* 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.
*
* Return value: %TRUE if parsing succeeded.
* Return value: %TRUE if parsing succeeded, and %FALSE otherwise
*
* Since: 1.0
*/
@ -782,7 +802,7 @@ clutter_color_from_string (ClutterColor *color,
* Returns a textual specification of @color in the hexadecimal form
* <literal>&num;rrggbbaa</literal>, where <literal>r</literal>,
* <literal>g</literal>, <literal>b</literal> and <literal>a</literal> are
* hex digits representing the red, green, blue and alpha components
* hexadecimal digits representing the red, green, blue and alpha components
* respectively.
*
* Return value: (transfer full): a newly-allocated text string