void
_gtk_css_computed_values_compute_value (GtkCssComputedValues *values,
GtkStyleProviderPrivate *provider,
GtkCssComputedValues *parent_values,
guint id,
GtkCssValue *specified,
GtkCssSection *section)
{
GtkCssDependencies dependencies;
GtkCssValue *value;
gtk_internal_return_if_fail (GTK_IS_CSS_COMPUTED_VALUES (values));
gtk_internal_return_if_fail (GTK_IS_STYLE_PROVIDER_PRIVATE (provider));
gtk_internal_return_if_fail (parent_values == NULL || GTK_IS_CSS_COMPUTED_VALUES (parent_values));
/* http://www.w3.org/TR/css3-cascade/#cascade
* Then, for every element, the value for each property can be found
* by following this pseudo-algorithm:
* 1) Identify all declarations that apply to the element
*/
if (specified == NULL)
{
GtkCssStyleProperty *prop = _gtk_css_style_property_lookup_by_id (id);
if (_gtk_css_style_property_is_inherit (prop))
specified = _gtk_css_inherit_value_new ();
else
specified = _gtk_css_initial_value_new ();
}
else
_gtk_css_value_ref (specified);
value = _gtk_css_value_compute (specified, id, provider, values, parent_values, &dependencies);
_gtk_css_computed_values_set_value (values, id, value, dependencies, section);
_gtk_css_value_unref (value);
_gtk_css_value_unref (specified);
}
static GtkCssValue *
gtk_css_value_unset_compute (GtkCssValue *value,
guint property_id,
GtkStyleProviderPrivate *provider,
GtkCssStyle *style,
GtkCssStyle *parent_style)
{
GtkCssStyleProperty *property;
GtkCssValue *unset_value;
property = _gtk_css_style_property_lookup_by_id (property_id);
if (_gtk_css_style_property_is_inherit (property))
unset_value = _gtk_css_inherit_value_get ();
else
unset_value = _gtk_css_initial_value_get ();
return _gtk_css_value_compute (unset_value,
property_id,
provider,
style,
parent_style);
}
void
_gtk_css_computed_values_compute_value (GtkCssComputedValues *values,
GtkStyleProviderPrivate *provider,
int scale,
GtkCssComputedValues *parent_values,
guint id,
GtkCssValue *specified,
GtkCssSection *section)
{
GtkCssDependencies dependencies;
GtkCssValue *value;
gtk_internal_return_if_fail (GTK_IS_CSS_COMPUTED_VALUES (values));
gtk_internal_return_if_fail (GTK_IS_STYLE_PROVIDER_PRIVATE (provider));
gtk_internal_return_if_fail (parent_values == NULL || GTK_IS_CSS_COMPUTED_VALUES (parent_values));
/* http://www.w3.org/TR/css3-cascade/#cascade
* Then, for every element, the value for each property can be found
* by following this pseudo-algorithm:
* 1) Identify all declarations that apply to the element
*/
if (specified == NULL)
{
GtkCssStyleProperty *prop = _gtk_css_style_property_lookup_by_id (id);
if (_gtk_css_style_property_is_inherit (prop))
specified = _gtk_css_inherit_value_new ();
else
specified = _gtk_css_initial_value_new ();
}
else
_gtk_css_value_ref (specified);
value = _gtk_css_value_compute (specified, id, provider, scale, values, parent_values, &dependencies);
if (values->values == NULL)
values->values = g_ptr_array_new_full (_gtk_css_style_property_get_n_properties (),
(GDestroyNotify)_gtk_css_value_unref);
if (id >= values->values->len)
g_ptr_array_set_size (values->values, id + 1);
if (g_ptr_array_index (values->values, id))
_gtk_css_value_unref (g_ptr_array_index (values->values, id));
g_ptr_array_index (values->values, id) = _gtk_css_value_ref (value);
if (dependencies & (GTK_CSS_DEPENDS_ON_PARENT | GTK_CSS_EQUALS_PARENT))
values->depends_on_parent = _gtk_bitmask_set (values->depends_on_parent, id, TRUE);
if (dependencies & (GTK_CSS_EQUALS_PARENT))
values->equals_parent = _gtk_bitmask_set (values->equals_parent, id, TRUE);
if (dependencies & (GTK_CSS_DEPENDS_ON_COLOR))
values->depends_on_color = _gtk_bitmask_set (values->depends_on_color, id, TRUE);
if (dependencies & (GTK_CSS_DEPENDS_ON_FONT_SIZE))
values->depends_on_font_size = _gtk_bitmask_set (values->depends_on_font_size, id, TRUE);
if (values->sections && values->sections->len > id && g_ptr_array_index (values->sections, id))
{
gtk_css_section_unref (g_ptr_array_index (values->sections, id));
g_ptr_array_index (values->sections, id) = NULL;
}
if (section)
{
if (values->sections == NULL)
values->sections = g_ptr_array_new_with_free_func (maybe_unref_section);
if (values->sections->len <= id)
g_ptr_array_set_size (values->sections, id + 1);
g_ptr_array_index (values->sections, id) = gtk_css_section_ref (section);
}
_gtk_css_value_unref (value);
_gtk_css_value_unref (specified);
}
