gwy_shader_new()

GtkWidget *
gwy_shader_new (void);

Creates a new spherical shader.

The widget takes up all the space allocated for it.

gwy_shader_get_theta()

gdouble
gwy_shader_get_theta (GwyShader *shader);

Returns the theta coordinate of a shaded spherical angle selector.

gwy_shader_get_phi()

gdouble
gwy_shader_get_phi (GwyShader *shader);

Returns the phi coordinate of a shaded spherical angle selector.

gwy_shader_set_theta()

void
gwy_shader_set_theta (GwyShader *shader,
                      gdouble theta);

Sets the theta coordinate of a shaded spherical angle selector.

gwy_shader_set_phi()

void
gwy_shader_set_phi (GwyShader *shader,
                    gdouble phi);

Sets the phi coordinate of a shaded spherical angle selector.

gwy_shader_set_angle()

void
gwy_shader_set_angle (GwyShader *shader,
                      gdouble theta,
                      gdouble phi);

Sets both spherical angles of a shaded spherical angle selector.

gwy_shader_get_gradient()

GwyGradient *
gwy_shader_get_gradient (GwyShader *shader);

Returns the color gradient a shaded spherical angle selector uses.

If no specific gradient has been set and the default one is used, the function returns NULL. This is consistent with getting the corresponding property. If you still need the GwyGradient object in such case, use gwy_gradients_get_gradient() with NULL argument.

gwy_shader_set_gradient()

void
gwy_shader_set_gradient (GwyShader *shader,
                         GwyGradient *gradient);

Sets the gradient a shaded spherical angle selector uses.

struct GwyShader

struct GwyShader;

struct GwyShaderClass

struct GwyShaderClass {
    GtkWidgetClass parent_class;

    void (*angle_changed)(GwyShader *shader);
    void (*reserved1)(void);
    void (*reserved2)(void);
    void (*reserved3)(void);
    void (*reserved4)(void);
};

The “gradient” property

  “gradient”                 GwyGradient *

Gradient to use for rendering.

Owner: GwyShader

Flags: Read / Write

The “angle-changed” signal

void
user_function (GwyShader *gwyshader,
               gpointer   user_data)

The ::angle-changed signal is emitted when the spherical angle changes.

Flags: Run First