GtkBitmask *
_gtk_css_computed_values_advance (GtkCssComputedValues *values,
gint64 timestamp)
{
GtkBitmask *changed;
GPtrArray *old_computed_values;
GSList *list;
guint i;
gtk_internal_return_val_if_fail (GTK_IS_CSS_COMPUTED_VALUES (values), NULL);
gtk_internal_return_val_if_fail (timestamp >= values->current_time, NULL);
values->current_time = timestamp;
old_computed_values = values->animated_values;
values->animated_values = NULL;
list = values->animations;
while (list)
{
GtkStyleAnimation *animation = list->data;
list = list->next;
_gtk_style_animation_set_values (animation,
timestamp,
GTK_CSS_COMPUTED_VALUES (values));
if (_gtk_style_animation_is_finished (animation, timestamp))
{
values->animations = g_slist_remove (values->animations, animation);
g_object_unref (animation);
}
}
/* figure out changes */
changed = _gtk_bitmask_new ();
for (i = 0; i < GTK_CSS_PROPERTY_N_PROPERTIES; i++)
{
GtkCssValue *old_animated, *new_animated;
old_animated = old_computed_values && i < old_computed_values->len ? g_ptr_array_index (old_computed_values, i) : NULL;
new_animated = values->animated_values && i < values->animated_values->len ? g_ptr_array_index (values->animated_values, i) : NULL;
if (!_gtk_css_value_equal0 (old_animated, new_animated))
changed = _gtk_bitmask_set (changed, i, TRUE);
}
if (old_computed_values)
g_ptr_array_unref (old_computed_values);
return changed;
}
/**
* _gtk_css_style_property_get_affects:
* @property: the property
*
* Returns all the things this property affects. See @GtkCssAffects for what
* the flags mean.
*
* Returns: The things this property affects.
**/
GtkCssAffects
_gtk_css_style_property_get_affects (GtkCssStyleProperty *property)
{
gtk_internal_return_val_if_fail (GTK_IS_CSS_STYLE_PROPERTY (property), 0);
return property->affects;
}
/**
* _gtk_css_style_property_get_id:
* @property: the property
*
* Gets the id for the given property. IDs are used to allow using arrays
* for style lookups.
*
* Returns: The id of the property
**/
guint
_gtk_css_style_property_get_id (GtkCssStyleProperty *property)
{
gtk_internal_return_val_if_fail (GTK_IS_CSS_STYLE_PROPERTY (property), 0);
return property->id;
}
int
_gtk_style_cascade_get_scale (GtkStyleCascade *cascade)
{
gtk_internal_return_val_if_fail (GTK_IS_STYLE_CASCADE (cascade), 1);
return cascade->scale;
}
/**
* _gtk_css_style_property_get_initial_value:
* @property: the property
*
* Queries the initial value of the given @property. See the
* [CSS Documentation](http://www.w3.org/TR/css3-cascade/#intial)
* for an explanation of this concept.
*
* Returns: (transfer none): the initial value. The value will never change.
**/
GtkCssValue *
_gtk_css_style_property_get_initial_value (GtkCssStyleProperty *property)
{
gtk_internal_return_val_if_fail (GTK_IS_CSS_STYLE_PROPERTY (property), NULL);
return property->initial_value;
}
/**
* gtk_css_section_get_file:
* @section: the section
*
* Gets the file that @section was parsed from. If no such file exists,
* for example because the CSS was loaded via
* @gtk_css_provider_load_from_data(), then %NULL is returned.
*
* Returns: (transfer none): the #GFile that @section was parsed from
* or %NULL if @section was parsed from other data
*
* Since: 3.2
**/
GFile *
gtk_css_section_get_file (const GtkCssSection *section)
{
gtk_internal_return_val_if_fail (section != NULL, NULL);
return section->file;
}
/**
* gtk_css_section_get_start_position:
* @section: the section
*
* Returns the offset in bytes from the start of the current line
* returned via gtk_css_section_get_start_line().
*
* Returns: the offset in bytes from the start of the line.
*
* Since: 3.2
**/
guint
gtk_css_section_get_start_position (const GtkCssSection *section)
{
gtk_internal_return_val_if_fail (section != NULL, 0);
return section->start_position;
}
/**
* gtk_css_section_get_section_type:
* @section: the section
*
* Gets the type of information that @section describes.
*
* Returns: the type of @section
*
* Since: 3.2
**/
GtkCssSectionType
gtk_css_section_get_section_type (const GtkCssSection *section)
{
gtk_internal_return_val_if_fail (section != NULL, GTK_CSS_SECTION_DOCUMENT);
return section->section_type;
}
/**
* gtk_css_section_get_parent:
* @section: the section
*
* Gets the parent section for the given @section. The parent section is
* the section that contains this @section. A special case are sections of
* type #GTK_CSS_SECTION_DOCUMENT. Their parent will either be %NULL
* if they are the original CSS document that was loaded by
* gtk_css_provider_load_from_file() or a section of type
* #GTK_CSS_SECTION_IMPORT if it was loaded with an import rule from
* a different file.
*
* Returns: (nullable) (transfer none): the parent section or %NULL if none
*
* Since: 3.2
**/
GtkCssSection *
gtk_css_section_get_parent (const GtkCssSection *section)
{
gtk_internal_return_val_if_fail (section != NULL, NULL);
return section->parent;
}
GtkWidgetPath *
gtk_css_path_node_get_widget_path (GtkCssPathNode *node)
{
gtk_internal_return_val_if_fail (GTK_IS_CSS_PATH_NODE (node), NULL);
return node->path;
}
GtkWidget *
gtk_css_widget_node_get_widget (GtkCssWidgetNode *node)
{
gtk_internal_return_val_if_fail (GTK_IS_CSS_WIDGET_NODE (node), NULL);
return node->widget;
}
gboolean
gtk_css_style_is_static (GtkCssStyle *style)
{
gtk_internal_return_val_if_fail (GTK_IS_CSS_STYLE (style), TRUE);
return GTK_CSS_STYLE_GET_CLASS (style)->is_static (style);
}
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);
}
/**
* _gtk_css_style_property_is_animated:
* @property: the property
*
* Queries if the given @property can be is animated. See the
* [CSS Documentation](http://www.w3.org/TR/css3-transitions/#animatable-css)
* for animatable properties.
*
* Returns: %TRUE if the property can be animated.
**/
gboolean
_gtk_css_style_property_is_animated (GtkCssStyleProperty *property)
{
gtk_internal_return_val_if_fail (GTK_IS_CSS_STYLE_PROPERTY (property), FALSE);
return property->animated;
}
/**
* gtk_widget_path_length:
* @path: a #GtkWidgetPath
*
* Returns the number of #GtkWidget #GTypes between the represented
* widget and its topmost container.
*
* Returns: the number of elements in the path
*
* Since: 3.0
**/
gint
gtk_widget_path_length (const GtkWidgetPath *path)
{
gtk_internal_return_val_if_fail (path != NULL, 0);
return path->elems->len;
}
GtkCssValue *
gtk_css_animated_style_get_intrinsic_value (GtkCssAnimatedStyle *style,
guint id)
{
gtk_internal_return_val_if_fail (GTK_IS_CSS_ANIMATED_STYLE (style), NULL);
return gtk_css_style_get_value (style->style, id);
}
GtkCssSection *
gtk_css_style_get_section (GtkCssStyle *style,
guint id)
{
gtk_internal_return_val_if_fail (GTK_IS_CSS_STYLE (style), NULL);
return GTK_CSS_STYLE_GET_CLASS (style)->get_section (style, id);
}
gboolean
_gtk_css_lookup_is_missing (const GtkCssLookup *lookup,
guint id)
{
gtk_internal_return_val_if_fail (lookup != NULL, FALSE);
return _gtk_bitmask_get (lookup->missing, id);
}
/**
* gtk_css_section_ref:
* @section: a #GtkCssSection
*
* Increments the reference count on @section.
*
* Returns: @section itself.
*
* Since: 3.2
**/
GtkCssSection *
gtk_css_section_ref (GtkCssSection *section)
{
gtk_internal_return_val_if_fail (section != NULL, NULL);
section->ref_count += 1;
return section;
}
/**
* gtk_widget_path_ref:
* @path: a #GtkWidgetPath
*
* Increments the reference count on @path.
*
* Returns: @path itself.
*
* Since: 3.2
**/
GtkWidgetPath *
gtk_widget_path_ref (GtkWidgetPath *path)
{
gtk_internal_return_val_if_fail (path != NULL, path);
path->ref_count += 1;
return path;
}
/**
* gtk_css_section_get_end_position:
* @section: the section
*
* Returns the offset in bytes from the start of the current line
* returned via gtk_css_section_get_end_line().
* This value may change in future invocations of this function if
* @section is not yet parsed completely. This will for example
* happen in the GtkCssProvider::parsing-error signal.
* The end position and line may be identical to the start
* position and line for sections which failed to parse anything
* successfully.
*
* Returns: the offset in bytes from the start of the line.
*
* Since: 3.2
**/
guint
gtk_css_section_get_end_position (const GtkCssSection *section)
{
gtk_internal_return_val_if_fail (section != NULL, 0);
if (section->parser)
return _gtk_css_parser_get_position (section->parser);
else
return section->end_position;
}
GtkCssStyle *
gtk_css_animated_style_new_advance (GtkCssAnimatedStyle *source,
GtkCssStyle *base,
gint64 timestamp)
{
GtkCssAnimatedStyle *result;
GSList *l, *animations;
gtk_internal_return_val_if_fail (GTK_IS_CSS_ANIMATED_STYLE (source), NULL);
gtk_internal_return_val_if_fail (GTK_IS_CSS_STYLE (base), NULL);
if (timestamp == 0 || timestamp == source->current_time)
return g_object_ref (source->style);
gtk_internal_return_val_if_fail (timestamp > source->current_time, NULL);
animations = NULL;
for (l = source->animations; l; l = l->next)
{
GtkStyleAnimation *animation = l->data;
if (_gtk_style_animation_is_finished (animation))
continue;
animation = _gtk_style_animation_advance (animation, timestamp);
animations = g_slist_prepend (animations, animation);
}
animations = g_slist_reverse (animations);
if (animations == NULL)
return g_object_ref (source->style);
result = g_object_new (GTK_TYPE_CSS_ANIMATED_STYLE, NULL);
result->style = g_object_ref (base);
result->current_time = timestamp;
result->animations = animations;
gtk_css_animated_style_apply_animations (result);
return GTK_CSS_STYLE (result);
}
GtkCssSection *
_gtk_css_computed_values_get_section (GtkCssComputedValues *values,
guint id)
{
gtk_internal_return_val_if_fail (GTK_IS_CSS_COMPUTED_VALUES (values), NULL);
if (values->sections == NULL ||
id >= values->sections->len)
return NULL;
return g_ptr_array_index (values->sections, id);
}
char *
_gtk_css_section_to_string (const GtkCssSection *section)
{
GString *string;
gtk_internal_return_val_if_fail (section != NULL, NULL);
string = g_string_new (NULL);
_gtk_css_section_print (section, string);
return g_string_free (string, FALSE);
}
GtkCssValue *
_gtk_css_computed_values_get_value (GtkCssComputedValues *values,
guint id)
{
gtk_internal_return_val_if_fail (GTK_IS_CSS_COMPUTED_VALUES (values), NULL);
if (values->animated_values &&
id < values->animated_values->len &&
g_ptr_array_index (values->animated_values, id))
return g_ptr_array_index (values->animated_values, id);
return _gtk_css_computed_values_get_intrinsic_value (values, id);
}
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);
}
GtkCssNode *
gtk_css_widget_node_new (GtkWidget *widget)
{
GtkCssWidgetNode *result;
gtk_internal_return_val_if_fail (GTK_IS_WIDGET (widget), NULL);
result = g_object_new (GTK_TYPE_CSS_WIDGET_NODE, NULL);
result->widget = widget;
gtk_css_node_set_visible (GTK_CSS_NODE (result),
gtk_widget_get_visible (widget));
return GTK_CSS_NODE (result);
}
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);
}
/**
* _gtk_css_style_property_lookup_by_id:
* @id: the id of the property
*
* Gets the style property with the given id. All style properties (but not
* shorthand properties) are indexable by id so that it’s easy to use arrays
* when doing style lookups.
*
* Returns: (transfer none): The style property with the given id
**/
GtkCssStyleProperty *
_gtk_css_style_property_lookup_by_id (guint id)
{
if (G_UNLIKELY (gtk_css_style_property_class == NULL))
{
_gtk_style_property_init_properties ();
g_assert (gtk_css_style_property_class);
}
gtk_internal_return_val_if_fail (id < gtk_css_style_property_class->style_properties->len, NULL);
return g_ptr_array_index (gtk_css_style_property_class->style_properties, id);
}
GtkCssStyle *
gtk_css_animated_style_new (GtkCssStyle *base_style,
GtkCssStyle *parent_style,
gint64 timestamp,
GtkStyleProviderPrivate *provider,
GtkCssStyle *previous_style)
{
GtkCssAnimatedStyle *result;
GSList *animations;
gtk_internal_return_val_if_fail (GTK_IS_CSS_STYLE (base_style), NULL);
gtk_internal_return_val_if_fail (parent_style == NULL || GTK_IS_CSS_STYLE (parent_style), NULL);
gtk_internal_return_val_if_fail (GTK_IS_STYLE_PROVIDER (provider), NULL);
gtk_internal_return_val_if_fail (previous_style == NULL || GTK_IS_CSS_STYLE (previous_style), NULL);
if (timestamp == 0)
return g_object_ref (base_style);
animations = NULL;
if (previous_style != NULL)
animations = gtk_css_animated_style_create_css_transitions (animations, base_style, timestamp, previous_style);
animations = gtk_css_animated_style_create_css_animations (animations, base_style, parent_style, timestamp, provider, previous_style);
if (animations == NULL)
return g_object_ref (base_style);
result = g_object_new (GTK_TYPE_CSS_ANIMATED_STYLE, NULL);
result->style = g_object_ref (base_style);
result->current_time = timestamp;
result->animations = animations;
gtk_css_animated_style_apply_animations (result);
return GTK_CSS_STYLE (result);
}
