Gradients

Gradients — Metacity gradient rendering

Functions

Types and Values

Description

Functions

meta_gradient_create_simple ()

GdkPixbuf *
meta_gradient_create_simple (int width,
                             int height,
                             const GdkRGBA *from,
                             const GdkRGBA *to,
                             MetaGradientType style);

Parameters

width

Width in pixels

 

height

Height in pixels

 

from

Starting color

 

to

Ending color

 

style

Gradient style

 

Returns

A new linear gradient.

[transfer full]


meta_gradient_create_multi ()

GdkPixbuf *
meta_gradient_create_multi (int width,
                            int height,
                            const GdkRGBA *colors,
                            int n_colors,
                            MetaGradientType style);

Parameters

width

Width in pixels

 

height

Height in pixels

 

colors

Array of colors.

[array length=n_colors]

n_colors

Number of colors

 

style

Gradient style

 

Returns

A new multi-step linear gradient.

[transfer full]


meta_gradient_create_interwoven ()

GdkPixbuf *
meta_gradient_create_interwoven (int width,
                                 int height,
                                 const GdkRGBA colors1[2],
                                 int thickness1,
                                 const GdkRGBA colors2[2],
                                 int thickness2);

Interwoven essentially means we have two vertical gradients, cut into horizontal strips of the given thickness, and then the strips are alternated. I'm not sure what it's good for, just copied since WindowMaker had it.

Parameters

width

Width in pixels

 

height

Height in pixels

 

colors1

Array of colors

 

thickness1

Thickness

 

colors2

Array of colors

 

thickness2

Thickness

 

meta_gradient_add_alpha ()

void
meta_gradient_add_alpha (GdkPixbuf *pixbuf,
                         const guchar *alphas,
                         int n_alphas,
                         MetaGradientType type);

Types and Values

enum MetaGradientType

Members

META_GRADIENT_VERTICAL

Vertical gradient

 

META_GRADIENT_HORIZONTAL

Horizontal gradient

 

META_GRADIENT_DIAGONAL

Diagonal gradient

 

META_GRADIENT_LAST

Marks the end of the MetaGradientType enumeration