/**
* 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;
}
static GtkCssValue *
gtk_css_value_rgba_transition (GtkCssValue *start,
GtkCssValue *end,
guint property_id,
double progress)
{
GdkRGBA result;
progress = CLAMP (progress, 0, 1);
result.alpha = transition (start->rgba.alpha, end->rgba.alpha, progress);
if (result.alpha <= 0.0)
{
result.red = result.green = result.blue = 0.0;
}
else
{
result.red = transition (start->rgba.red * start->rgba.alpha,
end->rgba.red * end->rgba.alpha,
progress) / result.alpha;
result.green = transition (start->rgba.green * start->rgba.alpha,
end->rgba.green * end->rgba.alpha,
progress) / result.alpha;
result.blue = transition (start->rgba.blue * start->rgba.alpha,
end->rgba.blue * end->rgba.alpha,
progress) / result.alpha;
}
return _gtk_css_rgba_value_new_from_rgba (&result);
}
