/**
* gtk_symbolic_color_resolve:
* @color: a #GtkSymbolicColor
* @props: (allow-none): #GtkStyleProperties to use when resolving
* named colors, or %NULL
* @resolved_color: (out): return location for the resolved color
*
* If @color is resolvable, @resolved_color will be filled in
* with the resolved color, and %TRUE will be returned. Generally,
* if @color can't be resolved, it is due to it being defined on
* top of a named color that doesn't exist in @props.
*
* When @props is %NULL, resolving of named colors will fail, so if
* your @color is or references such a color, this function will
* return %FALSE.
*
* Returns: %TRUE if the color has been resolved
*
* Since: 3.0
*
* Deprecated: 3.8: #GtkSymbolicColor is deprecated.
**/
gboolean
gtk_symbolic_color_resolve (GtkSymbolicColor *color,
GtkStyleProperties *props,
GdkRGBA *resolved_color)
{
GdkRGBA pink = { 1.0, 0.5, 0.5, 1.0 };
GtkCssValue *v, *current;
g_return_val_if_fail (color != NULL, FALSE);
g_return_val_if_fail (resolved_color != NULL, FALSE);
g_return_val_if_fail (props == NULL || GTK_IS_STYLE_PROPERTIES (props), FALSE);
current = _gtk_css_rgba_value_new_from_rgba (&pink);
v = _gtk_css_color_value_resolve (color->value,
GTK_STYLE_PROVIDER_PRIVATE (props),
current,
0,
NULL);
_gtk_css_value_unref (current);
if (v == NULL)
return FALSE;
*resolved_color = *_gtk_css_rgba_value_get_rgba (v);
_gtk_css_value_unref (v);
return TRUE;
}
/**
* _gtk_style_property_assign:
* @property: the property
* @props: The properties to assign to
* @state: The state to assign
* @value: (out): the #GValue with the value to be
* assigned
*
* This function is called by gtk_style_properties_set() and in
* turn gtk_style_context_set() and similar functions to set the
* value from code using old APIs.
**/
void
_gtk_style_property_assign (GtkStyleProperty *property,
GtkStyleProperties *props,
GtkStateFlags state,
const GValue *value)
{
GtkStylePropertyClass *klass;
g_return_if_fail (GTK_IS_STYLE_PROPERTY (property));
g_return_if_fail (GTK_IS_STYLE_PROPERTIES (props));
g_return_if_fail (value != NULL);
klass = GTK_STYLE_PROPERTY_GET_CLASS (property);
klass->assign (property, props, state, value);
}
/**
* gtk_gradient_resolve:
* @gradient: a #GtkGradient
* @props: #GtkStyleProperties to use when resolving named colors
* @resolved_gradient: (out): return location for the resolved pattern
*
* 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.
*
* Returns: %TRUE if the gradient has been resolved
*
* Since: 3.0
*
* Deprecated: 3.8: #GtkGradient is deprecated.
**/
gboolean
gtk_gradient_resolve (GtkGradient *gradient,
GtkStyleProperties *props,
cairo_pattern_t **resolved_gradient)
{
cairo_pattern_t *pattern;
guint i;
g_return_val_if_fail (gradient != NULL, FALSE);
g_return_val_if_fail (GTK_IS_STYLE_PROPERTIES (props), FALSE);
g_return_val_if_fail (resolved_gradient != NULL, FALSE);
if (gradient->radius0 == 0 && gradient->radius1 == 0)
pattern = cairo_pattern_create_linear (gradient->x0, gradient->y0,
gradient->x1, gradient->y1);
else
pattern = cairo_pattern_create_radial (gradient->x0, gradient->y0,
gradient->radius0,
gradient->x1, gradient->y1,
gradient->radius1);
for (i = 0; i < gradient->stops->len; i++)
{
ColorStop *stop;
GdkRGBA color;
stop = &g_array_index (gradient->stops, ColorStop, i);
if (!gtk_symbolic_color_resolve (stop->color, props, &color))
{
cairo_pattern_destroy (pattern);
return FALSE;
}
cairo_pattern_add_color_stop_rgba (pattern, stop->offset,
color.red, color.green,
color.blue, color.alpha);
}
*resolved_gradient = pattern;
return TRUE;
}
