Struct

GtkGradient

Description [src]

struct GtkGradient {
  /* No available fields */
}

GtkGradient is a boxed type that represents a gradient. It is the result of parsing a [gradient expression][gtkcssprovider-gradients]. To obtain the gradient represented by a GtkGradient, it has to be resolved with gtk_gradient_resolve(), which replaces all symbolic color references by the colors they refer to (in a given context) and constructs a #cairo_pattern_t value.

It is not normally necessary to deal directly with GtkGradients, since they are mostly used behind the scenes by GtkStyleContext and GtkCssProvider.

GtkGradient is deprecated. It was used internally by GTK’s CSS engine to represent gradients. As its handling is not conforming to modern web standards, it is not used anymore. If you want to use gradients in your own code, please use Cairo directly.

Constructors

gtk_gradient_new_linear

Creates a new linear gradient along the line defined by (x0, y0) and (x1, y1). Before using the gradient a number of stop colors must be added through gtk_gradient_add_color_stop().

Available since: 3.0

Deprecated since: 3.8

gtk_gradient_new_radial

Creates a new radial gradient along the two circles defined by (x0, y0, radius0) and (x1, y1, radius1). Before using the gradient a number of stop colors must be added through gtk_gradient_add_color_stop().

Available since: 3.0

Deprecated since: 3.8

Instance methods

gtk_gradient_add_color_stop

Adds a stop color to gradient.

Available since: 3.0

Deprecated since: 3.8

gtk_gradient_ref

Increases the reference count of gradient.

Available since: 3.0

Deprecated since: 3.8

gtk_gradient_resolve

If gradient is resolvable, resolved_gradient will be filled in with the resolved gradient as a cairo_pattern_t, and TRUE will be returned. Generally, if gradient can’t be resolved, it is due to it being defined on top of a named color that doesn’t exist in props.

Available since: 3.0

Deprecated since: 3.8

gtk_gradient_resolve_for_context
No description available.
gtk_gradient_to_string

Creates a string representation for gradient that is suitable for using in GTK CSS files.

Deprecated since: 3.8

gtk_gradient_unref

Decreases the reference count of gradient, freeing its memory if the reference count reaches 0.

Available since: 3.0

Deprecated since: 3.8