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Drop child property related apis

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We no longer have any child properties in
our containers, so drop the infrastructure for it.
This commit is contained in:
Matthias Clasen 2019-04-05 04:02:53 +00:00
parent 7cd9ea497b
commit 70bf6d4b97
5 changed files with 1 additions and 1163 deletions
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17
docs/reference/gtk/gtk4-sections.txt
View File

@ -744,10 +744,8 @@ gtk_combo_box_text_get_type
<TITLE>GtkContainer</TITLE>
GtkContainer
GtkContainerClass
GTK_CONTAINER_WARN_INVALID_CHILD_PROPERTY_ID
gtk_container_add
gtk_container_remove
gtk_container_add_with_properties
gtk_container_foreach
gtk_container_get_children
gtk_container_get_path_for_child
@ -756,19 +754,7 @@ gtk_container_set_focus_vadjustment
gtk_container_get_focus_hadjustment
gtk_container_set_focus_hadjustment
gtk_container_child_type
gtk_container_child_get
gtk_container_child_set
gtk_container_child_get_property
gtk_container_child_set_property
gtk_container_child_get_valist
gtk_container_child_set_valist
gtk_container_child_notify
gtk_container_child_notify_by_pspec
gtk_container_forall
gtk_container_class_find_child_property
gtk_container_class_install_child_property
gtk_container_class_install_child_properties
gtk_container_class_list_child_properties
<SUBSECTION Standard>
GTK_CONTAINER
@ -4485,8 +4471,6 @@ gtk_widget_class_set_accessible_type
gtk_widget_class_set_accessible_role
gtk_widget_get_accessible
gtk_widget_child_focus
gtk_widget_child_notify
gtk_widget_freeze_child_notify
gtk_widget_get_child_visible
gtk_widget_get_parent
gtk_widget_get_settings
@ -4496,7 +4480,6 @@ gtk_widget_get_display
gtk_widget_get_size_request
gtk_widget_set_child_visible
gtk_widget_set_size_request
gtk_widget_thaw_child_notify
gtk_widget_list_mnemonic_labels
gtk_widget_add_mnemonic_label
gtk_widget_remove_mnemonic_label

916
gtk/gtkcontainer.c
View File

@ -27,18 +27,16 @@
#include "gtkcontainerprivate.h"
#include "gtkadjustment.h"
#include "gtkassistant.h"
#include "gtkbuildable.h"
#include "gtkbuilderprivate.h"
#include "gtkintl.h"
#include "gtkpopovermenu.h"
#include "gtkprivate.h"
#include "gtkmarshalers.h"
#include "gtksizerequest.h"
#include "gtkstylecontextprivate.h"
#include "gtktypebuiltins.h"
#include "gtkwidgetprivate.h"
#include "gtkwindowprivate.h"
//#include "gtkwindowprivate.h"
#include "a11y/gtkcontaineraccessibleprivate.h"
@ -84,37 +82,6 @@
* with gtk_widget_set_parent() on init() and removed with gtk_widget_unparent()
* in the #GtkWidgetClass.destroy() implementation.
* See more about implementing custom widgets at https://wiki.gnome.org/HowDoI/CustomWidgets
*
* # Child properties
*
* GtkContainer introduces child properties.
* These are object properties that are not specific
* to either the container or the contained widget, but rather to their relation.
* Typical examples of child properties are the position or pack-type of a widget
* which is contained in a #GtkBox.
*
* Use gtk_container_class_install_child_property() to install child properties
* for a container class and gtk_container_class_find_child_property() or
* gtk_container_class_list_child_properties() to get information about existing
* child properties.
*
* To set the value of a child property, use gtk_container_child_set_property(),
* gtk_container_child_set() or gtk_container_child_set_valist().
* To obtain the value of a child property, use
* gtk_container_child_get_property(), gtk_container_child_get() or
* gtk_container_child_get_valist(). To emit notification about child property
* changes, use gtk_widget_child_notify().
*
* # GtkContainer as GtkBuildable
*
* The GtkContainer implementation of the GtkBuildable interface supports
* a <packing> element for children, which can contain multiple <property>
* elements that specify child properties for the child.
*
* Child properties can also be marked as translatable using
* the same “translatable”, “comments” and “context” attributes that are used
* for regular properties.
*
*/
@ -164,17 +131,6 @@ static void gtk_container_buildable_add_child (GtkBuildable *buildable,
GtkBuilder *builder,
GObject *child,
const gchar *type);
static gboolean gtk_container_buildable_custom_tag_start (GtkBuildable *buildable,
GtkBuilder *builder,
GObject *child,
const gchar *tagname,
GMarkupParser *parser,
gpointer *data);
static void gtk_container_buildable_custom_tag_end (GtkBuildable *buildable,
GtkBuilder *builder,
GObject *child,
const gchar *tagname,
gpointer data);
/* --- variables --- */
static GQuark vadjustment_key_id;
@ -182,8 +138,6 @@ static GQuark hadjustment_key_id;
static guint container_signals[LAST_SIGNAL] = { 0 };
static gint GtkContainer_private_offset;
static GtkWidgetClass *gtk_container_parent_class = NULL;
extern GParamSpecPool *_gtk_widget_child_property_pool;
extern GObjectNotifyContext *_gtk_widget_child_property_notify_context;
static GtkBuildableIface *parent_buildable_iface;
@ -241,26 +195,11 @@ gtk_container_get_type (void)
static void
gtk_container_base_class_init (GtkContainerClass *class)
{
/* reset instance specifc class fields that don't get inherited */
class->set_child_property = NULL;
class->get_child_property = NULL;
}
static void
gtk_container_base_class_finalize (GtkContainerClass *class)
{
GList *list, *node;
list = g_param_spec_pool_list_owned (_gtk_widget_child_property_pool, G_OBJECT_CLASS_TYPE (class));
for (node = list; node; node = node->next)
{
GParamSpec *pspec = node->data;
g_param_spec_pool_remove (_gtk_widget_child_property_pool, pspec);
PARAM_SPEC_SET_PARAM_ID (pspec, 0);
g_param_spec_unref (pspec);
}
g_list_free (list);
}
static void
@ -315,8 +254,6 @@ gtk_container_buildable_init (GtkBuildableIface *iface)
{
parent_buildable_iface = g_type_interface_peek_parent (iface);
iface->add_child = gtk_container_buildable_add_child;
iface->custom_tag_start = gtk_container_buildable_custom_tag_start;
iface->custom_tag_end = gtk_container_buildable_custom_tag_end;
}
static void
@ -343,261 +280,6 @@ gtk_container_buildable_add_child (GtkBuildable *buildable,
}
}
static inline void
container_set_child_property (GtkContainer *container,
GtkWidget *child,
GParamSpec *pspec,
const GValue *value,
GObjectNotifyQueue *nqueue)
{
GValue tmp_value = G_VALUE_INIT;
GtkContainerClass *class = g_type_class_peek (pspec->owner_type);
/* provide a copy to work from, convert (if necessary) and validate */
g_value_init (&tmp_value, G_PARAM_SPEC_VALUE_TYPE (pspec));
if (!g_value_transform (value, &tmp_value))
g_warning ("unable to set child property '%s' of type '%s' from value of type '%s'",
pspec->name,
g_type_name (G_PARAM_SPEC_VALUE_TYPE (pspec)),
G_VALUE_TYPE_NAME (value));
else if (g_param_value_validate (pspec, &tmp_value) && !(pspec->flags & G_PARAM_LAX_VALIDATION))
{
gchar *contents = g_strdup_value_contents (value);
g_warning ("value \"%s\" of type '%s' is invalid for property '%s' of type '%s'",
contents,
G_VALUE_TYPE_NAME (value),
pspec->name,
g_type_name (G_PARAM_SPEC_VALUE_TYPE (pspec)));
g_free (contents);
}
else
{
class->set_child_property (container, child, PARAM_SPEC_PARAM_ID (pspec), &tmp_value, pspec);
g_object_notify_queue_add (G_OBJECT (child), nqueue, pspec);
}
g_value_unset (&tmp_value);
}
static void
gtk_container_buildable_set_child_property (GtkContainer *container,
GtkBuilder *builder,
GtkWidget *child,
gchar *name,
const gchar *value)
{
GParamSpec *pspec;
GValue gvalue = G_VALUE_INIT;
GError *error = NULL;
GObjectNotifyQueue *nqueue;
pspec = gtk_container_class_find_child_property (G_OBJECT_GET_CLASS (container), name);
if (!pspec)
{
g_warning ("%s does not have a child property called %s",
G_OBJECT_TYPE_NAME (container), name);
return;
}
else if (!(pspec->flags & G_PARAM_WRITABLE))
{
g_warning ("Child property '%s' of container class '%s' is not writable",
name, G_OBJECT_TYPE_NAME (container));
return;
}
if (!gtk_builder_value_from_string (builder, pspec, value, &gvalue, &error))
{
g_warning ("Could not read property %s:%s with value %s of type %s: %s",
g_type_name (G_OBJECT_TYPE (container)),
name,
value,
g_type_name (G_PARAM_SPEC_VALUE_TYPE (pspec)),
error->message);
g_error_free (error);
return;
}
g_object_ref (container);
g_object_ref (child);
nqueue = g_object_notify_queue_freeze (G_OBJECT (child), _gtk_widget_child_property_notify_context);
container_set_child_property (container, child, pspec, &gvalue, nqueue);
g_object_notify_queue_thaw (G_OBJECT (child), nqueue);
g_object_unref (container);
g_object_unref (child);
g_value_unset (&gvalue);
}
typedef struct {
GtkBuilder *builder;
GtkContainer *container;
GtkWidget *child;
GString *string;
gchar *child_prop_name;
gchar *context;
gboolean translatable;
} PackingData;
static void
packing_start_element (GMarkupParseContext *context,
const gchar *element_name,
const gchar **names,
const gchar **values,
gpointer user_data,
GError **error)
{
PackingData *data = (PackingData*)user_data;
if (strcmp (element_name, "property") == 0)
{
const gchar *name;
gboolean translatable = FALSE;
const gchar *ctx = NULL;
if (!_gtk_builder_check_parent (data->builder, context, "packing", error))
return;
if (!g_markup_collect_attributes (element_name, names, values, error,
G_MARKUP_COLLECT_STRING, "name", &name,
G_MARKUP_COLLECT_BOOLEAN|G_MARKUP_COLLECT_OPTIONAL, "translatable", &translatable,
G_MARKUP_COLLECT_STRING|G_MARKUP_COLLECT_OPTIONAL, "comments", NULL,
G_MARKUP_COLLECT_STRING|G_MARKUP_COLLECT_OPTIONAL, "context", &ctx,
G_MARKUP_COLLECT_INVALID))
{
_gtk_builder_prefix_error (data->builder, context, error);
return;
}
data->child_prop_name = g_strdup (name);
data->translatable = translatable;
data->context = g_strdup (ctx);
}
else if (strcmp (element_name, "packing") == 0)
{
if (!_gtk_builder_check_parent (data->builder, context, "child", error))
return;
if (!g_markup_collect_attributes (element_name, names, values, error,
G_MARKUP_COLLECT_INVALID, NULL, NULL,
G_MARKUP_COLLECT_INVALID))
_gtk_builder_prefix_error (data->builder, context, error);
}
else
{
_gtk_builder_error_unhandled_tag (data->builder, context,
"GtkContainer", element_name,
error);
}
}
static void
packing_text_element (GMarkupParseContext *context,
const gchar *text,
gsize text_len,
gpointer user_data,
GError **error)
{
PackingData *data = (PackingData*)user_data;
if (data->child_prop_name)
g_string_append_len (data->string, text, text_len);
}
static void
packing_end_element (GMarkupParseContext *context,
const gchar *element_name,
gpointer user_data,
GError **error)
{
PackingData *data = (PackingData*)user_data;
/* translate the string */
if (data->string->len && data->translatable)
{
const gchar *translated;
const gchar *domain;
domain = gtk_builder_get_translation_domain (data->builder);
translated = _gtk_builder_parser_translate (domain,
data->context,
data->string->str);
g_string_assign (data->string, translated);
}
if (data->child_prop_name)
gtk_container_buildable_set_child_property (data->container,
data->builder,
data->child,
data->child_prop_name,
data->string->str);
g_string_set_size (data->string, 0);
g_clear_pointer (&data->child_prop_name, g_free);
g_clear_pointer (&data->context, g_free);
data->translatable = FALSE;
}
static const GMarkupParser packing_parser =
{
packing_start_element,
packing_end_element,
packing_text_element,
};
static gboolean
gtk_container_buildable_custom_tag_start (GtkBuildable *buildable,
GtkBuilder *builder,
GObject *child,
const gchar *tagname,
GMarkupParser *parser,
gpointer *parser_data)
{
if (parent_buildable_iface->custom_tag_start (buildable, builder, child,
tagname, parser, parser_data))
return TRUE;
if (child && strcmp (tagname, "packing") == 0)
{
PackingData *data;
data = g_slice_new0 (PackingData);
data->string = g_string_new ("");
data->builder = builder;
data->container = GTK_CONTAINER (buildable);
data->child = GTK_WIDGET (child);
data->child_prop_name = NULL;
*parser = packing_parser;
*parser_data = data;
return TRUE;
}
return FALSE;
}
static void
gtk_container_buildable_custom_tag_end (GtkBuildable *buildable,
GtkBuilder *builder,
GObject *child,
const gchar *tagname,
gpointer parser_data)
{
if (strcmp (tagname, "packing") == 0)
{
PackingData *data = (PackingData*)parser_data;
g_string_free (data->string, TRUE);
g_slice_free (PackingData, data);
return;
}
if (parent_buildable_iface->custom_tag_end)
parent_buildable_iface->custom_tag_end (buildable, builder,
child, tagname, parser_data);
}
/**
* gtk_container_child_type:
* @container: a #GtkContainer
@ -627,602 +309,6 @@ gtk_container_child_type (GtkContainer *container)
return slot;
}
/* --- GtkContainer child property mechanism --- */
/**
* gtk_container_child_notify:
* @container: the #GtkContainer
* @child: the child widget
* @child_property: the name of a child property installed on
* the class of @container
*
* Emits a #GtkWidget::child-notify signal for the
* [child property][child-properties]
* @child_property on the child.
*
* This is an analogue of g_object_notify() for child properties.
*
* Also see gtk_widget_child_notify().
*/
void
gtk_container_child_notify (GtkContainer *container,
GtkWidget *child,
const gchar *child_property)
{
GObject *obj;
GParamSpec *pspec;
g_return_if_fail (GTK_IS_CONTAINER (container));
g_return_if_fail (GTK_IS_WIDGET (child));
g_return_if_fail (child_property != NULL);
obj = G_OBJECT (child);
if (obj->ref_count == 0)
return;
g_object_ref (obj);
pspec = g_param_spec_pool_lookup (_gtk_widget_child_property_pool,
child_property,
G_OBJECT_TYPE (container),
TRUE);
if (pspec == NULL)
{
g_warning ("%s: container class '%s' has no child property named '%s'",
G_STRLOC,
G_OBJECT_TYPE_NAME (container),
child_property);
}
else
{
GObjectNotifyQueue *nqueue;
nqueue = g_object_notify_queue_freeze (obj, _gtk_widget_child_property_notify_context);
g_object_notify_queue_add (obj, nqueue, pspec);
g_object_notify_queue_thaw (obj, nqueue);
}
g_object_unref (obj);
}
/**
* gtk_container_child_notify_by_pspec:
* @container: the #GtkContainer
* @child: the child widget
* @pspec: the #GParamSpec of a child property instealled on
* the class of @container
*
* Emits a #GtkWidget::child-notify signal for the
* [child property][child-properties] specified by
* @pspec on the child.
*
* This is an analogue of g_object_notify_by_pspec() for child properties.
*/
void
gtk_container_child_notify_by_pspec (GtkContainer *container,
GtkWidget *child,
GParamSpec *pspec)
{
GObject *obj = G_OBJECT (child);
GObjectNotifyQueue *nqueue;
g_return_if_fail (GTK_IS_CONTAINER (container));
g_return_if_fail (GTK_IS_WIDGET (child));
g_return_if_fail (G_IS_PARAM_SPEC (pspec));
if (obj->ref_count == 0)
return;
g_object_ref (obj);
nqueue = g_object_notify_queue_freeze (obj, _gtk_widget_child_property_notify_context);
g_object_notify_queue_add (obj, nqueue, pspec);
g_object_notify_queue_thaw (obj, nqueue);
g_object_unref (obj);
}
static inline void
container_get_child_property (GtkContainer *container,
GtkWidget *child,
GParamSpec *pspec,
GValue *value)
{
GtkContainerClass *class = g_type_class_peek (pspec->owner_type);
class->get_child_property (container, child, PARAM_SPEC_PARAM_ID (pspec), value, pspec);
}
/**
* gtk_container_child_get_valist:
* @container: a #GtkContainer
* @child: a widget which is a child of @container
* @first_property_name: the name of the first property to get
* @var_args: return location for the first property, followed
* optionally by more name/return location pairs, followed by %NULL
*
* Gets the values of one or more child properties for @child and @container.
**/
void
gtk_container_child_get_valist (GtkContainer *container,
GtkWidget *child,
const gchar *first_property_name,
va_list var_args)
{
const gchar *name;
g_return_if_fail (GTK_IS_CONTAINER (container));
g_return_if_fail (GTK_IS_WIDGET (child));
g_object_ref (container);
g_object_ref (child);
name = first_property_name;
while (name)
{
GValue value = G_VALUE_INIT;
GParamSpec *pspec;
gchar *error;
pspec = g_param_spec_pool_lookup (_gtk_widget_child_property_pool,
name,
G_OBJECT_TYPE (container),
TRUE);
if (!pspec)
{
g_warning ("%s: container class '%s' has no child property named '%s'",
G_STRLOC,
G_OBJECT_TYPE_NAME (container),
name);
break;
}
if (!(pspec->flags & G_PARAM_READABLE))
{
g_warning ("%s: child property '%s' of container class '%s' is not readable",
G_STRLOC,
pspec->name,
G_OBJECT_TYPE_NAME (container));
break;
}
g_value_init (&value, G_PARAM_SPEC_VALUE_TYPE (pspec));
container_get_child_property (container, child, pspec, &value);
G_VALUE_LCOPY (&value, var_args, 0, &error);
if (error)
{
g_warning ("%s: %s", G_STRLOC, error);
g_free (error);
g_value_unset (&value);
break;
}
g_value_unset (&value);
name = va_arg (var_args, gchar*);
}
g_object_unref (child);
g_object_unref (container);
}
/**
* gtk_container_child_get_property:
* @container: a #GtkContainer
* @child: a widget which is a child of @container
* @property_name: the name of the property to get
* @value: a location to return the value
*
* Gets the value of a child property for @child and @container.
**/
void
gtk_container_child_get_property (GtkContainer *container,
GtkWidget *child,
const gchar *property_name,
GValue *value)
{
GParamSpec *pspec;
g_return_if_fail (GTK_IS_CONTAINER (container));
g_return_if_fail (GTK_IS_WIDGET (child));
g_return_if_fail (property_name != NULL);
g_return_if_fail (G_IS_VALUE (value));
g_object_ref (container);
g_object_ref (child);
pspec = g_param_spec_pool_lookup (_gtk_widget_child_property_pool, property_name,
G_OBJECT_TYPE (container), TRUE);
if (!pspec)
g_warning ("%s: container class '%s' has no child property named '%s'",
G_STRLOC,
G_OBJECT_TYPE_NAME (container),
property_name);
else if (!(pspec->flags & G_PARAM_READABLE))
g_warning ("%s: child property '%s' of container class '%s' is not readable",
G_STRLOC,
pspec->name,
G_OBJECT_TYPE_NAME (container));
else
{
GValue *prop_value, tmp_value = G_VALUE_INIT;
/* auto-conversion of the callers value type
*/
if (G_VALUE_TYPE (value) == G_PARAM_SPEC_VALUE_TYPE (pspec))
{
g_value_reset (value);
prop_value = value;
}
else if (!g_value_type_transformable (G_PARAM_SPEC_VALUE_TYPE (pspec), G_VALUE_TYPE (value)))
{
g_warning ("can't retrieve child property '%s' of type '%s' as value of type '%s'",
pspec->name,
g_type_name (G_PARAM_SPEC_VALUE_TYPE (pspec)),
G_VALUE_TYPE_NAME (value));
g_object_unref (child);
g_object_unref (container);
return;
}
else
{
g_value_init (&tmp_value, G_PARAM_SPEC_VALUE_TYPE (pspec));
prop_value = &tmp_value;
}
container_get_child_property (container, child, pspec, prop_value);
if (prop_value != value)
{
g_value_transform (prop_value, value);
g_value_unset (&tmp_value);
}
}
g_object_unref (child);
g_object_unref (container);
}
/**
* gtk_container_child_set_valist:
* @container: a #GtkContainer
* @child: a widget which is a child of @container
* @first_property_name: the name of the first property to set
* @var_args: a %NULL-terminated list of property names and values, starting
* with @first_prop_name
*
* Sets one or more child properties for @child and @container.
**/
void
gtk_container_child_set_valist (GtkContainer *container,
GtkWidget *child,
const gchar *first_property_name,
va_list var_args)
{
GObjectNotifyQueue *nqueue;
const gchar *name;
g_return_if_fail (GTK_IS_CONTAINER (container));
g_return_if_fail (GTK_IS_WIDGET (child));
g_object_ref (container);
g_object_ref (child);
nqueue = g_object_notify_queue_freeze (G_OBJECT (child), _gtk_widget_child_property_notify_context);
name = first_property_name;
while (name)
{
GValue value = G_VALUE_INIT;
gchar *error = NULL;
GParamSpec *pspec = g_param_spec_pool_lookup (_gtk_widget_child_property_pool,
name,
G_OBJECT_TYPE (container),
TRUE);
if (!pspec)
{
g_warning ("%s: container class '%s' has no child property named '%s'",
G_STRLOC,
G_OBJECT_TYPE_NAME (container),
name);
break;
}
if (!(pspec->flags & G_PARAM_WRITABLE))
{
g_warning ("%s: child property '%s' of container class '%s' is not writable",
G_STRLOC,
pspec->name,
G_OBJECT_TYPE_NAME (container));
break;
}
G_VALUE_COLLECT_INIT (&value, G_PARAM_SPEC_VALUE_TYPE (pspec),
var_args, 0, &error);
if (error)
{
g_warning ("%s: %s", G_STRLOC, error);
g_free (error);
/* we purposely leak the value here, it might not be
* in a sane state if an error condition occoured
*/
break;
}
container_set_child_property (container, child, pspec, &value, nqueue);
g_value_unset (&value);
name = va_arg (var_args, gchar*);
}
g_object_notify_queue_thaw (G_OBJECT (child), nqueue);
g_object_unref (container);
g_object_unref (child);
}
/**
* gtk_container_child_set_property:
* @container: a #GtkContainer
* @child: a widget which is a child of @container
* @property_name: the name of the property to set
* @value: the value to set the property to
*
* Sets a child property for @child and @container.
**/
void
gtk_container_child_set_property (GtkContainer *container,
GtkWidget *child,
const gchar *property_name,
const GValue *value)
{
GObjectNotifyQueue *nqueue;
GParamSpec *pspec;
g_return_if_fail (GTK_IS_CONTAINER (container));
g_return_if_fail (GTK_IS_WIDGET (child));
g_return_if_fail (property_name != NULL);
g_return_if_fail (G_IS_VALUE (value));
g_object_ref (container);
g_object_ref (child);
nqueue = g_object_notify_queue_freeze (G_OBJECT (child), _gtk_widget_child_property_notify_context);
pspec = g_param_spec_pool_lookup (_gtk_widget_child_property_pool, property_name,
G_OBJECT_TYPE (container), TRUE);
if (!pspec)
g_warning ("%s: container class '%s' has no child property named '%s'",
G_STRLOC,
G_OBJECT_TYPE_NAME (container),
property_name);
else if (!(pspec->flags & G_PARAM_WRITABLE))
g_warning ("%s: child property '%s' of container class '%s' is not writable",
G_STRLOC,
pspec->name,
G_OBJECT_TYPE_NAME (container));
else
{
container_set_child_property (container, child, pspec, value, nqueue);
}
g_object_notify_queue_thaw (G_OBJECT (child), nqueue);
g_object_unref (container);
g_object_unref (child);
}
/**
* gtk_container_add_with_properties:
* @container: a #GtkContainer
* @widget: a widget to be placed inside @container
* @first_prop_name: the name of the first child property to set
* @...: a %NULL-terminated list of property names and values, starting
* with @first_prop_name
*
* Adds @widget to @container, setting child properties at the same time.
* See gtk_container_add() and gtk_container_child_set() for more details.
*/
void
gtk_container_add_with_properties (GtkContainer *container,
GtkWidget *widget,
const gchar *first_prop_name,
...)
{
g_return_if_fail (GTK_IS_CONTAINER (container));
g_return_if_fail (GTK_IS_WIDGET (widget));
g_return_if_fail (_gtk_widget_get_parent (widget) == NULL);
g_object_ref (container);
g_object_ref (widget);
gtk_widget_freeze_child_notify (widget);
g_signal_emit (container, container_signals[ADD], 0, widget);
if (_gtk_widget_get_parent (widget))
{
va_list var_args;
va_start (var_args, first_prop_name);
gtk_container_child_set_valist (container, widget, first_prop_name, var_args);
va_end (var_args);
}
gtk_widget_thaw_child_notify (widget);
g_object_unref (widget);
g_object_unref (container);
}
/**
* gtk_container_child_set:
* @container: a #GtkContainer
* @child: a widget which is a child of @container
* @first_prop_name: the name of the first property to set
* @...: a %NULL-terminated list of property names and values, starting
* with @first_prop_name
*
* Sets one or more child properties for @child and @container.
*/
void
gtk_container_child_set (GtkContainer *container,
GtkWidget *child,
const gchar *first_prop_name,
...)
{
va_list var_args;
va_start (var_args, first_prop_name);
gtk_container_child_set_valist (container, child, first_prop_name, var_args);
va_end (var_args);
}
/**
* gtk_container_child_get:
* @container: a #GtkContainer
* @child: a widget which is a child of @container
* @first_prop_name: the name of the first property to get
* @...: return location for the first property, followed
* optionally by more name/return location pairs, followed by %NULL
*
* Gets the values of one or more child properties for @child and @container.
*/
void
gtk_container_child_get (GtkContainer *container,
GtkWidget *child,
const gchar *first_prop_name,
...)
{
va_list var_args;
va_start (var_args, first_prop_name);
gtk_container_child_get_valist (container, child, first_prop_name, var_args);
va_end (var_args);
}
static inline void
install_child_property_internal (GType g_type,
guint property_id,
GParamSpec *pspec)
{
if (g_param_spec_pool_lookup (_gtk_widget_child_property_pool, pspec->name, g_type, FALSE))
{
g_warning ("Class '%s' already contains a child property named '%s'",
g_type_name (g_type),
pspec->name);
return;
}
g_param_spec_ref (pspec);
g_param_spec_sink (pspec);
PARAM_SPEC_SET_PARAM_ID (pspec, property_id);
g_param_spec_pool_insert (_gtk_widget_child_property_pool, pspec, g_type);
}
/**
* gtk_container_class_install_child_property:
* @cclass: a #GtkContainerClass
* @property_id: the id for the property
* @pspec: the #GParamSpec for the property
*
* Installs a child property on a container class.
**/
void
gtk_container_class_install_child_property (GtkContainerClass *cclass,
guint property_id,
GParamSpec *pspec)
{
g_return_if_fail (GTK_IS_CONTAINER_CLASS (cclass));
g_return_if_fail (G_IS_PARAM_SPEC (pspec));
if (pspec->flags & G_PARAM_WRITABLE)
g_return_if_fail (cclass->set_child_property != NULL);
if (pspec->flags & G_PARAM_READABLE)
g_return_if_fail (cclass->get_child_property != NULL);
g_return_if_fail (property_id > 0);
g_return_if_fail (PARAM_SPEC_PARAM_ID (pspec) == 0); /* paranoid */
if (pspec->flags & (G_PARAM_CONSTRUCT | G_PARAM_CONSTRUCT_ONLY))
g_return_if_fail ((pspec->flags & (G_PARAM_CONSTRUCT | G_PARAM_CONSTRUCT_ONLY)) == 0);
install_child_property_internal (G_OBJECT_CLASS_TYPE (cclass), property_id, pspec);
}
/**
* gtk_container_class_install_child_properties:
* @cclass: a #GtkContainerClass
* @n_pspecs: the length of the #GParamSpec array
* @pspecs: (array length=n_pspecs): the #GParamSpec array defining the new
* child properties
*
* Installs child properties on a container class.
*/
void
gtk_container_class_install_child_properties (GtkContainerClass *cclass,
guint n_pspecs,
GParamSpec **pspecs)
{
gint i;
g_return_if_fail (GTK_IS_CONTAINER_CLASS (cclass));
g_return_if_fail (n_pspecs > 1);
g_return_if_fail (pspecs[0] == NULL);
/* we skip the first element of the array as it would have a 0 prop_id */
for (i = 1; i < n_pspecs; i++)
{
GParamSpec *pspec = pspecs[i];
g_return_if_fail (G_IS_PARAM_SPEC (pspec));
if (pspec->flags & G_PARAM_WRITABLE)
g_return_if_fail (cclass->set_child_property != NULL);
if (pspec->flags & G_PARAM_READABLE)
g_return_if_fail (cclass->get_child_property != NULL);
g_return_if_fail (PARAM_SPEC_PARAM_ID (pspec) == 0); /* paranoid */
if (pspec->flags & (G_PARAM_CONSTRUCT | G_PARAM_CONSTRUCT_ONLY))
g_return_if_fail ((pspec->flags & (G_PARAM_CONSTRUCT | G_PARAM_CONSTRUCT_ONLY)) == 0);
install_child_property_internal (G_OBJECT_CLASS_TYPE (cclass), i, pspec);
}
}
/**
* gtk_container_class_find_child_property:
* @cclass: (type GtkContainerClass): a #GtkContainerClass
* @property_name: the name of the child property to find
*
* Finds a child property of a container class by name.
*
* Returns: (nullable) (transfer none): the #GParamSpec of the child
* property or %NULL if @class has no child property with that
* name.
*/
GParamSpec*
gtk_container_class_find_child_property (GObjectClass *cclass,
const gchar *property_name)
{
g_return_val_if_fail (GTK_IS_CONTAINER_CLASS (cclass), NULL);
g_return_val_if_fail (property_name != NULL, NULL);
return g_param_spec_pool_lookup (_gtk_widget_child_property_pool,
property_name,
G_OBJECT_CLASS_TYPE (cclass),
TRUE);
}
/**
* gtk_container_class_list_child_properties:
* @cclass: (type GtkContainerClass): a #GtkContainerClass
* @n_properties: location to return the number of child properties found
*
* Returns all child properties of a container class.
*
* Returns: (array length=n_properties) (transfer container):
* a newly allocated %NULL-terminated array of #GParamSpec*.
* The array must be freed with g_free().
*/
GParamSpec**
gtk_container_class_list_child_properties (GObjectClass *cclass,
guint *n_properties)
{
GParamSpec **pspecs;
guint n;
g_return_val_if_fail (GTK_IS_CONTAINER_CLASS (cclass), NULL);
pspecs = g_param_spec_pool_list (_gtk_widget_child_property_pool,
G_OBJECT_CLASS_TYPE (cclass),
&n);
if (n_properties)
*n_properties = n;
return pspecs;
}
static void
gtk_container_add_unimplemented (GtkContainer *container,
GtkWidget *widget)

85
gtk/gtkcontainer.h
View File

@ -83,16 +83,6 @@ struct _GtkContainerClass
void (*set_focus_child) (GtkContainer *container,
GtkWidget *child);
GType (*child_type) (GtkContainer *container);
void (*set_child_property) (GtkContainer *container,
GtkWidget *child,
guint property_id,
const GValue *value,
GParamSpec *pspec);
void (*get_child_property) (GtkContainer *container,
GtkWidget *child,
guint property_id,
GValue *value,
GParamSpec *pspec);
GtkWidgetPath * (*get_path_for_child) (GtkContainer *container,
GtkWidget *child);
@ -145,81 +135,6 @@ GtkAdjustment *gtk_container_get_focus_hadjustment (GtkContainer *container);
GDK_AVAILABLE_IN_ALL
GType gtk_container_child_type (GtkContainer *container);
GDK_AVAILABLE_IN_ALL
void gtk_container_class_install_child_property (GtkContainerClass *cclass,
guint property_id,
GParamSpec *pspec);
GDK_AVAILABLE_IN_ALL
void gtk_container_class_install_child_properties (GtkContainerClass *cclass,
guint n_pspecs,
GParamSpec **pspecs);
GDK_AVAILABLE_IN_ALL
GParamSpec* gtk_container_class_find_child_property (GObjectClass *cclass,
const gchar *property_name);
GDK_AVAILABLE_IN_ALL
GParamSpec** gtk_container_class_list_child_properties (GObjectClass *cclass,
guint *n_properties);
GDK_AVAILABLE_IN_ALL
void gtk_container_add_with_properties (GtkContainer *container,
GtkWidget *widget,
const gchar *first_prop_name,
...) G_GNUC_NULL_TERMINATED;
GDK_AVAILABLE_IN_ALL
void gtk_container_child_set (GtkContainer *container,
GtkWidget *child,
const gchar *first_prop_name,
...) G_GNUC_NULL_TERMINATED;
GDK_AVAILABLE_IN_ALL
void gtk_container_child_get (GtkContainer *container,
GtkWidget *child,
const gchar *first_prop_name,
...) G_GNUC_NULL_TERMINATED;
GDK_AVAILABLE_IN_ALL
void gtk_container_child_set_valist (GtkContainer *container,
GtkWidget *child,
const gchar *first_property_name,
va_list var_args);
GDK_AVAILABLE_IN_ALL
void gtk_container_child_get_valist (GtkContainer *container,
GtkWidget *child,
const gchar *first_property_name,
va_list var_args);
GDK_AVAILABLE_IN_ALL
void gtk_container_child_set_property (GtkContainer *container,
GtkWidget *child,
const gchar *property_name,
const GValue *value);
GDK_AVAILABLE_IN_ALL
void gtk_container_child_get_property (GtkContainer *container,
GtkWidget *child,
const gchar *property_name,
GValue *value);
GDK_AVAILABLE_IN_ALL
void gtk_container_child_notify (GtkContainer *container,
GtkWidget *child,
const gchar *child_property);
GDK_AVAILABLE_IN_ALL
void gtk_container_child_notify_by_pspec (GtkContainer *container,
GtkWidget *child,
GParamSpec *pspec);
/**
* GTK_CONTAINER_WARN_INVALID_CHILD_PROPERTY_ID:
* @object: the #GObject on which set_child_property() or get_child_property()
* was called
* @property_id: the numeric id of the property
* @pspec: the #GParamSpec of the property
*
* This macro should be used to emit a standard warning about unexpected
* properties in set_child_property() and get_child_property() implementations.
*/
#define GTK_CONTAINER_WARN_INVALID_CHILD_PROPERTY_ID(object, property_id, pspec) \
G_OBJECT_WARN_INVALID_PSPEC ((object), "child property", (property_id), (pspec))
GDK_AVAILABLE_IN_ALL
void gtk_container_forall (GtkContainer *container,
GtkCallback callback,

130
gtk/gtkwidget.c
View File

@ -627,9 +627,6 @@ static gboolean gtk_widget_real_query_tooltip (GtkWidget *widget,
GtkTooltip *tooltip);
static void gtk_widget_real_style_updated (GtkWidget *widget);
static void gtk_widget_dispatch_child_properties_changed (GtkWidget *object,
guint n_pspecs,
GParamSpec **pspecs);
static gboolean gtk_widget_real_focus (GtkWidget *widget,
GtkDirectionType direction);
static void gtk_widget_real_move_focus (GtkWidget *widget,
@ -804,14 +801,6 @@ gtk_widget_base_class_init (gpointer g_class)
klass->priv->template = NULL;
}
static void
child_property_notify_dispatcher (GObject *object,
guint n_pspecs,
GParamSpec **pspecs)
{
GTK_WIDGET_GET_CLASS (object)->dispatch_child_properties_changed (GTK_WIDGET (object), n_pspecs, pspecs);
}
static void
gtk_widget_real_snapshot (GtkWidget *widget,
GtkSnapshot *snapshot)
@ -924,7 +913,6 @@ gtk_widget_real_unroot (GtkWidget *widget)
static void
gtk_widget_class_init (GtkWidgetClass *klass)
{
static GObjectNotifyContext cpn_context = { 0, NULL, NULL };
GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
GtkBindingSet *binding_set;
@ -946,11 +934,6 @@ gtk_widget_class_init (GtkWidgetClass *klass)
quark_font_options = g_quark_from_static_string ("gtk-widget-font-options");
quark_font_map = g_quark_from_static_string ("gtk-widget-font-map");
_gtk_widget_child_property_pool = g_param_spec_pool_new (TRUE);
cpn_context.quark_notify_queue = g_quark_from_static_string ("GtkWidget-child-property-notify-queue");
cpn_context.dispatcher = child_property_notify_dispatcher;
_gtk_widget_child_property_notify_context = &cpn_context;
gobject_class->constructed = gtk_widget_constructed;
gobject_class->dispose = gtk_widget_dispose;
gobject_class->finalize = gtk_widget_finalize;
@ -960,7 +943,6 @@ gtk_widget_class_init (GtkWidgetClass *klass)
klass->destroy = gtk_widget_real_destroy;
klass->activate_signal = 0;
klass->dispatch_child_properties_changed = gtk_widget_dispatch_child_properties_changed;
klass->show = gtk_widget_real_show;
klass->hide = gtk_widget_real_hide;
klass->map = gtk_widget_real_map;
@ -975,7 +957,6 @@ gtk_widget_class_init (GtkWidgetClass *klass)
klass->state_flags_changed = gtk_widget_real_state_flags_changed;
klass->direction_changed = gtk_widget_real_direction_changed;
klass->grab_notify = gtk_widget_real_grab_notify;
klass->child_notify = NULL;
klass->snapshot = gtk_widget_real_snapshot;
klass->mnemonic_activate = gtk_widget_real_mnemonic_activate;
klass->grab_focus = gtk_widget_real_grab_focus;
@ -1673,25 +1654,6 @@ gtk_widget_class_init (GtkWidgetClass *klass)
G_TYPE_NONE, 1,
G_TYPE_BOOLEAN);
/**
* GtkWidget::child-notify:
* @widget: the object which received the signal
* @child_property: the #GParamSpec of the changed child property
*
* The ::child-notify signal is emitted for each
* [child property][child-properties] that has
* changed on an object. The signal's detail holds the property name.
*/
widget_signals[CHILD_NOTIFY] =
g_signal_new (I_("child-notify"),
G_TYPE_FROM_CLASS (gobject_class),
G_SIGNAL_RUN_FIRST | G_SIGNAL_NO_RECURSE | G_SIGNAL_DETAILED | G_SIGNAL_NO_HOOKS,
G_STRUCT_OFFSET (GtkWidgetClass, child_notify),
NULL, NULL,
g_cclosure_marshal_VOID__PARAM,
G_TYPE_NONE, 1,
G_TYPE_PARAM);
/**
* GtkWidget::mnemonic-activate:
* @widget: the object which received the signal.
@ -2940,98 +2902,6 @@ gtk_widget_init (GTypeInstance *instance, gpointer g_class)
priv->root = (GtkRoot *) widget;
}
static void
gtk_widget_dispatch_child_properties_changed (GtkWidget *widget,
guint n_pspecs,
GParamSpec **pspecs)
{
GtkWidgetPrivate *priv = gtk_widget_get_instance_private (widget);
GtkWidget *container = priv->parent;
guint i;
for (i = 0; widget->priv->parent == container && i < n_pspecs; i++)
g_signal_emit (widget, widget_signals[CHILD_NOTIFY], g_param_spec_get_name_quark (pspecs[i]), pspecs[i]);
}
/**
* gtk_widget_freeze_child_notify:
* @widget: a #GtkWidget
*
* Stops emission of #GtkWidget::child-notify signals on @widget. The
* signals are queued until gtk_widget_thaw_child_notify() is called
* on @widget.
*
* This is the analogue of g_object_freeze_notify() for child properties.
**/
void
gtk_widget_freeze_child_notify (GtkWidget *widget)
{
g_return_if_fail (GTK_IS_WIDGET (widget));
if (!G_OBJECT (widget)->ref_count)
return;
g_object_ref (widget);
g_object_notify_queue_freeze (G_OBJECT (widget), _gtk_widget_child_property_notify_context);
g_object_unref (widget);
}
/**
* gtk_widget_child_notify:
* @widget: a #GtkWidget
* @child_property: the name of a child property installed on the
* class of @widget’s parent
*
* Emits a #GtkWidget::child-notify signal for the
* [child property][child-properties] @child_property
* on @widget.
*
* This is the analogue of g_object_notify() for child properties.
*
* Also see gtk_container_child_notify().
*/
void
gtk_widget_child_notify (GtkWidget *widget,
const gchar *child_property)
{
GtkWidgetPrivate *priv = gtk_widget_get_instance_private (widget);
if (priv->parent == NULL)
return;
gtk_container_child_notify (GTK_CONTAINER (priv->parent), widget, child_property);
}
/**
* gtk_widget_thaw_child_notify:
* @widget: a #GtkWidget
*
* Reverts the effect of a previous call to gtk_widget_freeze_child_notify().
* This causes all queued #GtkWidget::child-notify signals on @widget to be
* emitted.
*/
void
gtk_widget_thaw_child_notify (GtkWidget *widget)
{
GObjectNotifyQueue *nqueue;
g_return_if_fail (GTK_IS_WIDGET (widget));
if (!G_OBJECT (widget)->ref_count)
return;
g_object_ref (widget);
nqueue = g_object_notify_queue_from_object (G_OBJECT (widget), _gtk_widget_child_property_notify_context);
if (!nqueue || !nqueue->freeze_count)
g_warning (G_STRLOC ": child-property-changed notification for %s(%p) is not frozen",
G_OBJECT_TYPE_NAME (widget), widget);
else
g_object_notify_queue_thaw (G_OBJECT (widget), nqueue);
g_object_unref (widget);
}
/**
* gtk_widget_new:
* @type: type ID of the widget to create

16
gtk/gtkwidget.h
View File

@ -133,7 +133,6 @@ struct _GtkWidget
* @activate_signal: The signal to emit when a widget of this class is
* activated, gtk_widget_activate() handles the emission.
* Implementation of this signal is optional.
* @dispatch_child_properties_changed: Seldomly overidden.
* @destroy: Signals that all holders of a reference to the widget
* should release the reference that they hold.
* @show: Signal emitted when widget is shown
@ -234,11 +233,6 @@ struct _GtkWidgetClass
guint activate_signal;
/* seldomly overidden */
void (*dispatch_child_properties_changed) (GtkWidget *widget,
guint n_pspecs,
GParamSpec **pspecs);
/* basics */
void (* destroy) (GtkWidget *widget);
void (* show) (GtkWidget *widget);
@ -259,8 +253,6 @@ struct _GtkWidgetClass
GtkTextDirection previous_direction);
void (* grab_notify) (GtkWidget *widget,
gboolean was_grabbed);
void (* child_notify) (GtkWidget *widget,
GParamSpec *child_property);
/* size requests */
GtkSizeRequestMode (* get_request_mode) (GtkWidget *widget);
@ -461,14 +453,6 @@ gboolean gtk_widget_event (GtkWidget *widget,
GDK_AVAILABLE_IN_ALL
gboolean gtk_widget_activate (GtkWidget *widget);
GDK_AVAILABLE_IN_ALL
void gtk_widget_freeze_child_notify (GtkWidget *widget);
GDK_AVAILABLE_IN_ALL
void gtk_widget_child_notify (GtkWidget *widget,
const gchar *child_property);
GDK_AVAILABLE_IN_ALL
void gtk_widget_thaw_child_notify (GtkWidget *widget);
GDK_AVAILABLE_IN_ALL
void gtk_widget_set_can_focus (GtkWidget *widget,
gboolean can_focus);