CLUTTER_TYPE_COLOR

#define CLUTTER_TYPE_COLOR	(clutter_color_get_type ())

ClutterColor

typedef struct {
  guint8 red;
  guint8 green;
  guint8 blue;
  
  guint8 alpha;
} ClutterColor;

clutter_color_get_type ()

GType       clutter_color_get_type          (void);

clutter_color_add ()

void        clutter_color_add               (const ClutterColor *src1,
                                             const ClutterColor *src2,
                                             ClutterColor *dest);

Adds src2 to src1 and saves the resulting color inside dest.

The alpha channel of dest is as the maximum value between the alpha channels of src1 and src2.

clutter_color_subtract ()

void        clutter_color_subtract          (const ClutterColor *src1,
                                             const ClutterColor *src2,
                                             ClutterColor *dest);

Subtracts src2 from src1 and saves the resulting color inside dest.

The alpha channel of dest is set as the minimum value between the alpha channels of src1 and src2.

clutter_color_lighten ()

void        clutter_color_lighten           (const ClutterColor *src,
                                             ClutterColor *dest);

Lightens src by a fixed amount, and saves the changed color in dest.

clutter_color_darken ()

void        clutter_color_darken            (const ClutterColor *src,
                                             ClutterColor *dest);

Darkens src by a fixed amount, and saves the changed color in dest.

clutter_color_shade ()

void        clutter_color_shade             (const ClutterColor *src,
                                             ClutterColor *dest,
                                             gdouble shade);

Shades src by the factor of shade and saves the modified color into dest.

clutter_color_to_hls ()

void        clutter_color_to_hls            (const ClutterColor *src,
                                             guint8 *hue,
                                             guint8 *luminance,
                                             guint8 *saturation);

Converts src to the HLS format.

clutter_color_from_hls ()

void        clutter_color_from_hls          (ClutterColor *dest,
                                             guint8 hue,
                                             guint8 luminance,
                                             guint8 saturation);

Converts a color expressed in HLS (hue, luminance and saturation) values into a ClutterColor.

clutter_color_to_pixel ()

guint32     clutter_color_to_pixel          (const ClutterColor *src);

Converts src into a packed 32 bit integer, containing all the four 8 bit channels used by ClutterColor.

clutter_color_from_pixel ()

void        clutter_color_from_pixel        (ClutterColor *dest,
                                             guint32 pixel);

Converts pixel from the packed representation of a four 8 bit channel color to a ClutterColor.