static void
gtk_style_cascade_lookup (GtkStyleProviderPrivate *provider,
const GtkCssMatcher *matcher,
GtkCssLookup *lookup)
{
GtkStyleCascade *cascade = GTK_STYLE_CASCADE (provider);
GtkStyleCascadeIter iter;
GtkStyleProvider *item;
for (item = gtk_style_cascade_iter_init (cascade, &iter);
item;
item = gtk_style_cascade_iter_next (cascade, &iter))
{
if (GTK_IS_STYLE_PROVIDER_PRIVATE (item))
{
_gtk_style_provider_private_lookup (GTK_STYLE_PROVIDER_PRIVATE (item),
matcher,
lookup);
}
else
{
/* you lose */
g_warn_if_reached ();
}
}
}
static GtkCssChange
gtk_style_cascade_get_change (GtkStyleProviderPrivate *provider,
const GtkCssMatcher *matcher)
{
GtkStyleCascade *cascade = GTK_STYLE_CASCADE (provider);
GtkStyleCascadeIter iter;
GtkStyleProvider *item;
GtkCssChange change = 0;
for (item = gtk_style_cascade_iter_init (cascade, &iter);
item;
item = gtk_style_cascade_iter_next (cascade, &iter))
{
if (GTK_IS_STYLE_PROVIDER_PRIVATE (item))
{
change |= _gtk_style_provider_private_get_change (GTK_STYLE_PROVIDER_PRIVATE (item),
matcher);
}
else
{
g_return_val_if_reached (GTK_CSS_CHANGE_ANY);
}
}
return change;
}
/**
* _gtk_css_lookup_resolve:
* @lookup: the lookup
* @context: the context the values are resolved for
* @values: a new #GtkCssStyle to be filled with the new properties
*
* Resolves the current lookup into a styleproperties object. This is done
* by converting from the “winning declaration” to the “computed value”.
*
* XXX: This bypasses the notion of “specified value”. If this ever becomes
* an issue, go fix it.
**/
void
_gtk_css_lookup_resolve (GtkCssLookup *lookup,
GtkStyleProviderPrivate *provider,
GtkCssStaticStyle *style,
GtkCssStyle *parent_style)
{
guint i, n;
gtk_internal_return_if_fail (lookup != NULL);
gtk_internal_return_if_fail (GTK_IS_STYLE_PROVIDER_PRIVATE (provider));
gtk_internal_return_if_fail (GTK_IS_CSS_STATIC_STYLE (style));
gtk_internal_return_if_fail (parent_style == NULL || GTK_IS_CSS_STYLE (parent_style));
n = _gtk_css_style_property_get_n_properties ();
for (i = 0; i < n; i++)
{
if (lookup->values[i].value ||
_gtk_bitmask_get (lookup->missing, i))
gtk_css_static_style_compute_value (GTK_CSS_STATIC_STYLE (style),
provider,
parent_style,
i,
lookup->values[i].value,
lookup->values[i].section);
/* else not a relevant property */
}
}
static GtkCssValue *
gtk_style_cascade_get_color (GtkStyleProviderPrivate *provider,
const char *name)
{
GtkStyleCascade *cascade = GTK_STYLE_CASCADE (provider);
GtkStyleCascadeIter iter;
GtkCssValue *color;
GtkStyleProvider *item;
for (item = gtk_style_cascade_iter_init (cascade, &iter);
item;
item = gtk_style_cascade_iter_next (cascade, &iter))
{
if (GTK_IS_STYLE_PROVIDER_PRIVATE (item))
{
color = _gtk_style_provider_private_get_color (GTK_STYLE_PROVIDER_PRIVATE (item), name);
if (color)
return color;
}
else
{
/* If somebody hits this code path, shout at them */
}
}
return NULL;
}
static GtkCssKeyframes *
gtk_style_cascade_get_keyframes (GtkStyleProviderPrivate *provider,
const char *name)
{
GtkStyleCascade *cascade = GTK_STYLE_CASCADE (provider);
GtkStyleCascadeIter iter;
GtkCssKeyframes *keyframes;
GtkStyleProvider *item;
for (item = gtk_style_cascade_iter_init (cascade, &iter);
item;
item = gtk_style_cascade_iter_next (cascade, &iter))
{
if (!GTK_IS_STYLE_PROVIDER_PRIVATE (item))
continue;
keyframes = _gtk_style_provider_private_get_keyframes (GTK_STYLE_PROVIDER_PRIVATE (item), name);
if (keyframes)
{
gtk_style_cascade_iter_clear (&iter);
return keyframes;
}
}
gtk_style_cascade_iter_clear (&iter);
return NULL;
}
static void
gtk_style_cascade_lookup (GtkStyleProviderPrivate *provider,
const GtkCssMatcher *matcher,
GtkCssLookup *lookup,
GtkCssChange *change)
{
GtkStyleCascade *cascade = GTK_STYLE_CASCADE (provider);
GtkStyleCascadeIter iter;
GtkStyleProvider *item;
GtkCssChange iter_change;
for (item = gtk_style_cascade_iter_init (cascade, &iter);
item;
item = gtk_style_cascade_iter_next (cascade, &iter))
{
GtkStyleProviderPrivate *sp = (GtkStyleProviderPrivate*)item;
if (GTK_IS_STYLE_PROVIDER_PRIVATE (sp))
{
_gtk_style_provider_private_lookup (sp, matcher, lookup,
change ? &iter_change : NULL);
if (change)
*change |= iter_change;
}
else
{
/* you lose */
g_warn_if_reached ();
}
}
gtk_style_cascade_iter_clear (&iter);
}
void
_gtk_style_provider_private_changed (GtkStyleProviderPrivate *provider)
{
gtk_internal_return_if_fail (GTK_IS_STYLE_PROVIDER_PRIVATE (provider));
g_signal_emit (provider, signals[CHANGED], 0);
}
static GtkSettings *
gtk_style_cascade_get_settings (GtkStyleProviderPrivate *provider)
{
GtkStyleCascade *cascade = GTK_STYLE_CASCADE (provider);
GtkStyleCascadeIter iter;
GtkSettings *settings;
GtkStyleProvider *item;
for (item = gtk_style_cascade_iter_init (cascade, &iter);
item;
item = gtk_style_cascade_iter_next (cascade, &iter))
{
if (!GTK_IS_STYLE_PROVIDER_PRIVATE (item))
continue;
settings = _gtk_style_provider_private_get_settings (GTK_STYLE_PROVIDER_PRIVATE (item));
if (settings)
{
gtk_style_cascade_iter_clear (&iter);
return settings;
}
}
gtk_style_cascade_iter_clear (&iter);
return NULL;
}
int
_gtk_style_provider_private_get_scale (GtkStyleProviderPrivate *provider)
{
GtkStyleProviderPrivateInterface *iface;
gtk_internal_return_val_if_fail (GTK_IS_STYLE_PROVIDER_PRIVATE (provider), 1);
iface = GTK_STYLE_PROVIDER_PRIVATE_GET_INTERFACE (provider);
if (!iface->get_scale)
return 1;
return iface->get_scale (provider);
}
GtkSettings *
_gtk_style_provider_private_get_settings (GtkStyleProviderPrivate *provider)
{
GtkStyleProviderPrivateInterface *iface;
gtk_internal_return_val_if_fail (GTK_IS_STYLE_PROVIDER_PRIVATE (provider), NULL);
iface = GTK_STYLE_PROVIDER_PRIVATE_GET_INTERFACE (provider);
if (!iface->get_settings)
return NULL;
return iface->get_settings (provider);
}
GtkCssKeyframes *
_gtk_style_provider_private_get_keyframes (GtkStyleProviderPrivate *provider,
const char *name)
{
GtkStyleProviderPrivateInterface *iface;
gtk_internal_return_val_if_fail (GTK_IS_STYLE_PROVIDER_PRIVATE (provider), NULL);
gtk_internal_return_val_if_fail (name != NULL, NULL);
iface = GTK_STYLE_PROVIDER_PRIVATE_GET_INTERFACE (provider);
if (!iface->get_keyframes)
return NULL;
return iface->get_keyframes (provider, name);
}
GtkCssValue *
_gtk_style_provider_private_get_color (GtkStyleProviderPrivate *provider,
const char *name)
{
GtkStyleProviderPrivateInterface *iface;
/* for compat with gtk_symbolic_color_resolve() */
if (provider == NULL)
return NULL;
gtk_internal_return_val_if_fail (GTK_IS_STYLE_PROVIDER_PRIVATE (provider), NULL);
iface = GTK_STYLE_PROVIDER_PRIVATE_GET_INTERFACE (provider);
if (!iface->get_color)
return NULL;
return iface->get_color (provider, name);
}
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);
}
void
_gtk_style_provider_private_lookup (GtkStyleProviderPrivate *provider,
const GtkCssMatcher *matcher,
GtkCssLookup *lookup,
GtkCssChange *out_change)
{
GtkStyleProviderPrivateInterface *iface;
gtk_internal_return_if_fail (GTK_IS_STYLE_PROVIDER_PRIVATE (provider));
gtk_internal_return_if_fail (matcher != NULL);
gtk_internal_return_if_fail (lookup != NULL);
if (out_change)
*out_change = 0;
iface = GTK_STYLE_PROVIDER_PRIVATE_GET_INTERFACE (provider);
if (!iface->lookup)
return;
iface->lookup (provider, matcher, lookup, out_change);
}
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);
}
