*/
#include "config.h"
+
+#include "gtkcontainer.h"
+
#include <stdarg.h>
#include <string.h>
#include <stdlib.h>
-#include "gtkcontainer.h"
#include "gtkbuildable.h"
+#include "gtkbuilderprivate.h"
#include "gtkprivate.h"
#include "gtkmain.h"
#include "gtkmarshalers.h"
+#include "gtksizerequest.h"
#include "gtkwindow.h"
#include "gtkintl.h"
#include "gtktoolbar.h"
#include <gobject/gobjectnotifyqueue.c>
#include <gobject/gvaluecollector.h>
-#include "gtkalias.h"
+/**
+ * SECTION:gtkcontainer
+ * @Short_description: Base class for widgets which contain other widgets
+ * @Title: GtkContainer
+ *
+ * A GTK+ user interface is constructed by nesting widgets inside widgets.
+ * Container widgets are the inner nodes in the resulting tree of widgets:
+ * they contain other widgets. So, for example, you might have a #GtkWindow
+ * containing a #GtkFrame containing a #GtkLabel. If you wanted an image instead
+ * of a textual label inside the frame, you might replace the #GtkLabel widget
+ * with a #GtkImage widget.
+ *
+ * There are two major kinds of container widgets in GTK+. Both are subclasses
+ * of the abstract GtkContainer base class.
+ *
+ * The first type of container widget has a single child widget and derives
+ * from #GtkBin. These containers are <emphasis>decorators</emphasis>, which
+ * add some kind of functionality to the child. For example, a #GtkButton makes
+ * it's child into a clickable button; a #GtkFrame draws a frame around it's child
+ * and a #GtkWindow places it's child widget inside a top-level window.
+ *
+ * The second type of container can have more than one child; it's purpose is to
+ * manage <emphasis>layout</emphasis>. This means that these containers assign
+ * sizes and positions to their children. For example, a #GtkHBox arranges it's
+ * children in a horizontal row, and a #GtkTable arranges the widgets it contains
+ * in a two-dimensional grid.
+ *
+ * <refsect2 id="container-geometry-management">
+ * <title>Height for width geometry management</title>
+ * <para>
+ * GTK+ uses a height-for-width (and width-for-height) geometry management system.
+ * Height-for-width means that a widget can change how much vertical space it needs,
+ * depending on the amount of horizontal space that it is given (and similar for
+ * width-for-height).
+ *
+ * There are some things to keep in mind when implementing container widgets
+ * that make use of GTK+'s height for width geometry management system; first
+ * of all it's important to note that a container must prioritize one of it's
+ * dimensions, that is to say that a widget or container can only have a
+ * #GtkSizeRequestMode that is %GTK_SIZE_REQUEST_HEIGHT_FOR_WIDTH or
+ * %GTK_SIZE_REQUEST_WIDTH_FOR_HEIGHT. However, every widget and container
+ * must be able to respond to the APIs for both dimensions, i.e. even if a
+ * widget has a request mode that is height-for-width, it is possible that
+ * it's parent will request it's sizes using the width-for-height APIs.
+ *
+ * To ensure that everything works properly, here are some guidelines to follow
+ * when implementing height-for-width (or width-for-height) containers.
+ *
+ * Each request mode has 2 virtual methods involved. Height-for-width apis run
+ * through gtk_widget_get_preferred_width() and then through gtk_widget_get_preferred_height_for_width().
+ * When handling requests in the opposite #GtkSizeRequestMode it is important that
+ * every widget request at least enough space to display all of it's content at all times.
+ *
+ * When gtk_widget_get_preferred_height() is called on a container that is height-for-width,
+ * the container must return the height for minimum width, this is easily achieved by
+ * simply calling the reverse apis implemented for itself as follows:
+ *
+ * <programlisting><![CDATA[
+ * static void
+ * foo_container_get_preferred_height (GtkWidget *widget, gint *min_height, gint *nat_height)
+ * {
+ * if (i_am_in_height_for_width_mode)
+ * {
+ * gint min_width;
+ *
+ * GTK_WIDGET_GET_CLASS (widget)->get_preferred_width (widget, &min_width, NULL);
+ * GTK_WIDGET_GET_CLASS (widget)->get_preferred_height_for_width (widget, min_width,
+ * min_height, nat_height);
+ * }
+ * else
+ * {
+ * ... many containers support both request modes, execute the real width-for-height
+ * request here by returning the collective heights of all widgets that are
+ * stacked vertically (or whatever is appropriate for this container) ...
+ * }
+ * }
+ * ]]></programlisting>
+ *
+ * Similarly, when gtk_widget_get_preferred_width_for_height() is called for a container or widget
+ * that is height-for-width, it then only needs to return the base minimum width like so:
+ *
+ * <programlisting><![CDATA[
+ * static void
+ * foo_container_get_preferred_width_for_height (GtkWidget *widget, gint for_height,
+ * gint *min_width, gint *nat_width)
+ * {
+ * if (i_am_in_height_for_width_mode)
+ * {
+ * GTK_WIDGET_GET_CLASS (widget)->get_preferred_width (widget, min_width, nat_width);
+ * }
+ * else
+ * {
+ * ... execute the real width-for-height request here based on required width
+ * of the children collectively if the container were to be allocated the said height ...
+ * }
+ * }
+ * ]]></programlisting>
+ *
+ * Furthermore, in order to ensure correct height-for-width requests it is important
+ * to check the input width against the real required minimum width, this can
+ * easily be achieved as follows:
+ *
+ * <programlisting><![CDATA[
+ * static void
+ * foo_container_get_preferred_height_for_width (GtkWidget *widget, gint for_width,
+ * gint *min_height, gint *nat_height)
+ * {
+ * if (i_am_in_height_for_width_mode)
+ * {
+ * gint min_width;
+ *
+ * GTK_WIDGET_GET_CLASS (widget)->get_preferred_width (widget, &min_width, NULL);
+ *
+ * for_width = MAX (min_width, for_width);
+ *
+ * execute_real_height_for_width_request_code (widget, for_width, min_height, nat_height);
+ * }
+ * else
+ * {
+ * ... fall back on virtual results as mentioned in the previous example ...
+ * }
+ * }
+ * ]]></programlisting>
+ *
+ * Height for width requests are generally implemented in terms of a virtual allocation
+ * of widgets in the input orientation. Assuming an height-for-width request mode, a container
+ * would implement the <function>get_preferred_height_for_width()</function> virtual function by first calling
+ * gtk_widget_get_preferred_width() for each of its children.
+ *
+ * For each potential group of children that are lined up horizontally the values returned by
+ * gtk_widget_get_preferred_width() should be collected in an array of #GtkRequestedSize structures;
+ * any child spacing should be removed from the input @for_width and then the collective size be
+ * allocated using the gtk_distribute_natural_allocation() convenience function
+ *
+ * The container will then move on to request the preferred height for each child by using
+ * gtk_widget_get_preferred_height_for_width() and using the sizes stored in the #GtkRequestedSize array.
+ *
+ * When it comes time to allocate a height-for-width container, it's again important
+ * to consider that a container has to prioritize one dimension over the other. So if
+ * a container is a height-for-width container it must first allocate all widgets horizontally
+ * using a #GtkRequestedSize array and gtk_distribute_natural_allocation() and then add any
+ * extra space (if and where appropriate) for the widget to expand.
+ *
+ * After adding all the expand space, the container assumes it was allocated sufficient
+ * height to fit all of its content. At this time, the container must use the total horizontal sizes
+ * of each widget to request the height-for-width of each of its children and store the requests in a
+ * #GtkRequestedSize array for any widgets that stack vertically (for tabular containers this can
+ * be generalized into the heights and widths of rows and columns).
+ * The vertical space must then again be distributed using gtk_distribute_natural_allocation()
+ * while this time considering the allocated height of the widget minus any vertical spacing
+ * that the container adds. Then vertical expand space should be added where appropriate if available
+ * and go on to actually allocating the child widgets.
+ *
+ * See <link linkend="geometry-management">GtkWidget's geometry management section</link>
+ * to learn more about implementing height-for-width geometry management for widgets.
+ * </para>
+ * </refsect2>
+ * <refsect2 id="child-properties">
+ * <title>Child properties</title>
+ * <para>
+ * GtkContainer introduces <emphasis>child properties</emphasis>.
+ * 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().
+ * </para>
+ * </refsect2>
+ * <refsect2 id="GtkContainer-BUILDER-UI">
+ * <title>GtkContainer as GtkBuildable</title>
+ * <para>
+ * 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.
+ * <example>
+ * <title>Child properties in UI definitions</title>
+ * <programlisting><![CDATA[
+ * <object class="GtkVBox">
+ * <child>
+ * <object class="GtkLabel"/>
+ * <packing>
+ * <property name="pack-type">start</property>
+ * </packing>
+ * </child>
+ * </object>
+ * ]]></programlisting>
+ * </example>
+ * Since 2.16, child properties can also be marked as translatable using
+ * the same "translatable", "comments" and "context" attributes that are used
+ * for regular properties.
+ * </para>
+ * </refsect2>
+ */
+
+
+struct _GtkContainerPrivate
+{
+ GtkWidget *focus_child;
+
+ guint border_width : 16;
+
+ guint has_focus_chain : 1;
+ guint need_resize : 1;
+ guint reallocate_redraws : 1;
+ guint resize_mode : 2;
+};
+
enum {
ADD,
REMOVE,
static void gtk_container_base_class_finalize (GtkContainerClass *klass);
static void gtk_container_class_init (GtkContainerClass *klass);
static void gtk_container_init (GtkContainer *container);
-static void gtk_container_destroy (GtkObject *object);
+static void gtk_container_destroy (GtkWidget *widget);
static void gtk_container_set_property (GObject *object,
guint prop_id,
const GValue *value,
static void gtk_container_remove_unimplemented (GtkContainer *container,
GtkWidget *widget);
static void gtk_container_real_check_resize (GtkContainer *container);
+static void gtk_container_compute_expand (GtkWidget *widget,
+ gboolean *hexpand_p,
+ gboolean *vexpand_p);
static gboolean gtk_container_focus (GtkWidget *widget,
GtkDirectionType direction);
static void gtk_container_real_set_focus_child (GtkContainer *container,
gpointer client_data);
static void gtk_container_show_all (GtkWidget *widget);
static void gtk_container_hide_all (GtkWidget *widget);
-static gint gtk_container_expose (GtkWidget *widget,
- GdkEventExpose *event);
+static gint gtk_container_draw (GtkWidget *widget,
+ cairo_t *cr);
static void gtk_container_map (GtkWidget *widget);
static void gtk_container_unmap (GtkWidget *widget);
+static void gtk_container_adjust_size_request (GtkWidget *widget,
+ GtkOrientation orientation,
+ gint for_size,
+ gint *minimum_size,
+ gint *natural_size);
+static void gtk_container_adjust_size_allocation (GtkWidget *widget,
+ GtkAllocation *allocation);
static gchar* gtk_container_child_default_composite_name (GtkContainer *container,
GtkWidget *child);
NULL, /* value_table */
};
- static const GInterfaceInfo buildable_info =
+ const GInterfaceInfo buildable_info =
{
(GInterfaceInitFunc) gtk_container_buildable_init,
NULL,
gtk_container_class_init (GtkContainerClass *class)
{
GObjectClass *gobject_class = G_OBJECT_CLASS (class);
- GtkObjectClass *object_class = GTK_OBJECT_CLASS (class);
GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (class);
parent_class = g_type_class_peek_parent (class);
gobject_class->set_property = gtk_container_set_property;
gobject_class->get_property = gtk_container_get_property;
- object_class->destroy = gtk_container_destroy;
-
+ widget_class->destroy = gtk_container_destroy;
+ widget_class->compute_expand = gtk_container_compute_expand;
widget_class->show_all = gtk_container_show_all;
widget_class->hide_all = gtk_container_hide_all;
- widget_class->expose_event = gtk_container_expose;
+ widget_class->draw = gtk_container_draw;
widget_class->map = gtk_container_map;
widget_class->unmap = gtk_container_unmap;
widget_class->focus = gtk_container_focus;
-
+
+ widget_class->adjust_size_request = gtk_container_adjust_size_request;
+ widget_class->adjust_size_allocation = gtk_container_adjust_size_allocation;
+
class->add = gtk_container_add_unimplemented;
class->remove = gtk_container_remove_unimplemented;
class->check_resize = gtk_container_real_check_resize;
P_("Border width"),
P_("The width of the empty border outside the containers children"),
0,
- G_MAXINT,
+ 65535,
0,
GTK_PARAM_READWRITE));
g_object_class_install_property (gobject_class,
GTK_PARAM_WRITABLE));
container_signals[ADD] =
g_signal_new (I_("add"),
- G_OBJECT_CLASS_TYPE (object_class),
+ G_OBJECT_CLASS_TYPE (gobject_class),
G_SIGNAL_RUN_FIRST,
G_STRUCT_OFFSET (GtkContainerClass, add),
NULL, NULL,
GTK_TYPE_WIDGET);
container_signals[REMOVE] =
g_signal_new (I_("remove"),
- G_OBJECT_CLASS_TYPE (object_class),
+ G_OBJECT_CLASS_TYPE (gobject_class),
G_SIGNAL_RUN_FIRST,
G_STRUCT_OFFSET (GtkContainerClass, remove),
NULL, NULL,
G_TYPE_NONE, 1,
GTK_TYPE_WIDGET);
container_signals[CHECK_RESIZE] =
- g_signal_new (I_("check_resize"),
- G_OBJECT_CLASS_TYPE (object_class),
+ g_signal_new (I_("check-resize"),
+ G_OBJECT_CLASS_TYPE (gobject_class),
G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (GtkContainerClass, check_resize),
NULL, NULL,
G_TYPE_NONE, 0);
container_signals[SET_FOCUS_CHILD] =
g_signal_new (I_("set-focus-child"),
- G_OBJECT_CLASS_TYPE (object_class),
+ G_OBJECT_CLASS_TYPE (gobject_class),
G_SIGNAL_RUN_FIRST,
G_STRUCT_OFFSET (GtkContainerClass, set_focus_child),
NULL, NULL,
_gtk_marshal_VOID__OBJECT,
G_TYPE_NONE, 1,
GTK_TYPE_WIDGET);
+
+ g_type_class_add_private (class, sizeof (GtkContainerPrivate));
}
static void
GObject *child,
const gchar *type)
{
- g_return_if_fail (GTK_IS_WIDGET (child));
-
- gtk_container_add (GTK_CONTAINER (buildable), GTK_WIDGET (child));
+ if (type)
+ {
+ GTK_BUILDER_WARN_INVALID_CHILD_TYPE (buildable, type);
+ }
+ else if (GTK_IS_WIDGET (child) &&
+ gtk_widget_get_parent (GTK_WIDGET (child)) == NULL)
+ {
+ gtk_container_add (GTK_CONTAINER (buildable), GTK_WIDGET (child));
+ }
+ else
+ g_warning ("Cannot add an object of type %s to a container of type %s",
+ g_type_name (G_OBJECT_TYPE (child)), g_type_name (G_OBJECT_TYPE (buildable)));
}
static void
GtkContainer *container;
GtkWidget *child;
gchar *child_prop_name;
+ gchar *context;
+ gboolean translatable;
} PackingPropertiesData;
static void
guint i;
if (strcmp (element_name, "property") == 0)
- for (i = 0; names[i]; i++)
- if (strcmp (names[i], "name") == 0)
- parser_data->child_prop_name = g_strdup (values[i]);
+ {
+ for (i = 0; names[i]; i++)
+ if (strcmp (names[i], "name") == 0)
+ parser_data->child_prop_name = g_strdup (values[i]);
+ else if (strcmp (names[i], "translatable") == 0)
+ {
+ if (!_gtk_builder_boolean_from_string (values[1],
+ &parser_data->translatable,
+ error))
+ return;
+ }
+ else if (strcmp (names[i], "comments") == 0)
+ ; /* for translators */
+ else if (strcmp (names[i], "context") == 0)
+ parser_data->context = g_strdup (values[1]);
+ else
+ g_warning ("Unsupported attribute for GtkContainer Child "
+ "property: %s\n", names[i]);
+ }
else if (strcmp (element_name, "packing") == 0)
return;
else
GError **error)
{
PackingPropertiesData *parser_data = (PackingPropertiesData*)user_data;
+ gchar* value;
if (!parser_data->child_prop_name)
return;
+
+ if (parser_data->translatable && text_len)
+ {
+ const gchar* domain;
+ domain = gtk_builder_get_translation_domain (parser_data->builder);
+
+ value = _gtk_builder_parser_translate (domain,
+ parser_data->context,
+ text);
+ }
+ else
+ {
+ value = g_strdup (text);
+ }
gtk_container_buildable_set_child_property (parser_data->container,
parser_data->builder,
parser_data->child,
parser_data->child_prop_name,
- text);
+ value);
g_free (parser_data->child_prop_name);
+ g_free (parser_data->context);
+ g_free (value);
parser_data->child_prop_name = NULL;
+ parser_data->context = NULL;
+ parser_data->translatable = FALSE;
}
static const GMarkupParser attributes_parser =
g_return_if_fail (GTK_IS_CONTAINER (container));
g_return_if_fail (GTK_IS_WIDGET (child));
- g_return_if_fail (child->parent == GTK_WIDGET (container));
+ g_return_if_fail (gtk_widget_get_parent (child) == GTK_WIDGET (container));
g_object_ref (container);
g_object_ref (child);
g_return_if_fail (GTK_IS_CONTAINER (container));
g_return_if_fail (GTK_IS_WIDGET (child));
- g_return_if_fail (child->parent == GTK_WIDGET (container));
+ g_return_if_fail (gtk_widget_get_parent (child) == GTK_WIDGET (container));
g_return_if_fail (property_name != NULL);
g_return_if_fail (G_IS_VALUE (value));
g_return_if_fail (GTK_IS_CONTAINER (container));
g_return_if_fail (GTK_IS_WIDGET (child));
- g_return_if_fail (child->parent == GTK_WIDGET (container));
+ g_return_if_fail (gtk_widget_get_parent (child) == GTK_WIDGET (container));
g_object_ref (container);
g_object_ref (child);
g_return_if_fail (GTK_IS_CONTAINER (container));
g_return_if_fail (GTK_IS_WIDGET (child));
- g_return_if_fail (child->parent == GTK_WIDGET (container));
+ g_return_if_fail (gtk_widget_get_parent (child) == GTK_WIDGET (container));
g_return_if_fail (property_name != NULL);
g_return_if_fail (G_IS_VALUE (value));
{
g_return_if_fail (GTK_IS_CONTAINER (container));
g_return_if_fail (GTK_IS_WIDGET (widget));
- g_return_if_fail (widget->parent == NULL);
+ 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 (widget->parent)
+ if (gtk_widget_get_parent (widget))
{
va_list var_args;
g_return_if_fail (GTK_IS_CONTAINER (container));
g_return_if_fail (GTK_IS_WIDGET (child));
- g_return_if_fail (child->parent == GTK_WIDGET (container));
+ g_return_if_fail (gtk_widget_get_parent (child) == GTK_WIDGET (container));
va_start (var_args, first_prop_name);
gtk_container_child_set_valist (container, child, first_prop_name, var_args);
g_return_if_fail (GTK_IS_CONTAINER (container));
g_return_if_fail (GTK_IS_WIDGET (child));
- g_return_if_fail (child->parent == GTK_WIDGET (container));
+ g_return_if_fail (gtk_widget_get_parent (child) == GTK_WIDGET (container));
va_start (var_args, first_prop_name);
gtk_container_child_get_valist (container, child, first_prop_name, var_args);
* gtk_container_class_find_child_property:
* @cclass: a #GtkContainerClass
* @property_name: the name of the child property to find
- * @returns: the #GParamSpec of the child property or %NULL if @class has no
+ * @returns: (allow-none): the #GParamSpec of the child property or %NULL if @class has no
* child property with that name.
*
* Finds a child property of a container class by name.
static void
gtk_container_init (GtkContainer *container)
{
- container->focus_child = NULL;
- container->border_width = 0;
- container->need_resize = FALSE;
- container->resize_mode = GTK_RESIZE_PARENT;
- container->reallocate_redraws = FALSE;
+ GtkContainerPrivate *priv;
+
+ container->priv = G_TYPE_INSTANCE_GET_PRIVATE (container,
+ GTK_TYPE_CONTAINER,
+ GtkContainerPrivate);
+ priv = container->priv;
+
+ priv->focus_child = NULL;
+ priv->border_width = 0;
+ priv->need_resize = FALSE;
+ priv->resize_mode = GTK_RESIZE_PARENT;
+ priv->reallocate_redraws = FALSE;
}
static void
-gtk_container_destroy (GtkObject *object)
+gtk_container_destroy (GtkWidget *widget)
{
- GtkContainer *container = GTK_CONTAINER (object);
-
- if (GTK_CONTAINER_RESIZE_PENDING (container))
+ GtkContainer *container = GTK_CONTAINER (widget);
+ GtkContainerPrivate *priv = container->priv;
+
+ if (_gtk_widget_get_resize_pending (GTK_WIDGET (container)))
_gtk_container_dequeue_resize_handler (container);
+ if (priv->focus_child)
+ {
+ g_object_unref (priv->focus_child);
+ priv->focus_child = NULL;
+ }
+
/* do this before walking child widgets, to avoid
* removing children from focus chain one by one.
*/
- if (container->has_focus_chain)
+ if (priv->has_focus_chain)
gtk_container_unset_focus_chain (container);
-
+
gtk_container_foreach (container, (GtkCallback) gtk_widget_destroy, NULL);
-
- if (GTK_OBJECT_CLASS (parent_class)->destroy)
- (* GTK_OBJECT_CLASS (parent_class)->destroy) (object);
+
+ GTK_WIDGET_CLASS (parent_class)->destroy (widget);
}
static void
GParamSpec *pspec)
{
GtkContainer *container = GTK_CONTAINER (object);
+ GtkContainerPrivate *priv = container->priv;
switch (prop_id)
{
case PROP_BORDER_WIDTH:
- g_value_set_uint (value, container->border_width);
+ g_value_set_uint (value, priv->border_width);
break;
case PROP_RESIZE_MODE:
- g_value_set_enum (value, container->resize_mode);
+ g_value_set_enum (value, priv->resize_mode);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
gtk_container_set_border_width (GtkContainer *container,
guint border_width)
{
+ GtkContainerPrivate *priv;
+
g_return_if_fail (GTK_IS_CONTAINER (container));
- if (container->border_width != border_width)
+ priv = container->priv;
+
+ if (priv->border_width != border_width)
{
- container->border_width = border_width;
+ priv->border_width = border_width;
g_object_notify (G_OBJECT (container), "border-width");
- if (GTK_WIDGET_REALIZED (container))
+ if (gtk_widget_get_realized (GTK_WIDGET (container)))
gtk_widget_queue_resize (GTK_WIDGET (container));
}
}
{
g_return_val_if_fail (GTK_IS_CONTAINER (container), 0);
- return container->border_width;
+ return container->priv->border_width;
}
/**
gtk_container_add (GtkContainer *container,
GtkWidget *widget)
{
+ GtkWidget *parent;
+
g_return_if_fail (GTK_IS_CONTAINER (container));
g_return_if_fail (GTK_IS_WIDGET (widget));
- if (widget->parent != NULL)
+ parent = gtk_widget_get_parent (widget);
+
+ if (parent != NULL)
{
g_warning ("Attempting to add a widget with type %s to a container of "
"type %s, but the widget is already inside a container of type %s, "
- "the GTK+ FAQ at http://library.gnome.org/devel/gtk-faq/stable/ "
- "explains how to reparent a widget.",
+ "please use gtk_widget_reparent()" ,
g_type_name (G_OBJECT_TYPE (widget)),
g_type_name (G_OBJECT_TYPE (container)),
- g_type_name (G_OBJECT_TYPE (widget->parent)));
+ g_type_name (G_OBJECT_TYPE (parent)));
return;
}
{
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) == GTK_WIDGET (container));
- /* When using the deprecated API of the toolbar, it is possible
- * to legitimately call this function with a widget that is not
- * a direct child of the container.
- */
- g_return_if_fail (GTK_IS_TOOLBAR (container) ||
- widget->parent == GTK_WIDGET (container));
-
g_signal_emit (container, container_signals[REMOVE], 0, widget);
}
_gtk_container_dequeue_resize_handler (GtkContainer *container)
{
g_return_if_fail (GTK_IS_CONTAINER (container));
- g_return_if_fail (GTK_CONTAINER_RESIZE_PENDING (container));
+ g_return_if_fail (_gtk_widget_get_resize_pending (GTK_WIDGET (container)));
container_resize_queue = g_slist_remove (container_resize_queue, container);
- GTK_PRIVATE_UNSET_FLAG (container, GTK_RESIZE_PENDING);
+ _gtk_widget_set_resize_pending (GTK_WIDGET (container), FALSE);
}
/**
gtk_container_set_resize_mode (GtkContainer *container,
GtkResizeMode resize_mode)
{
+ GtkContainerPrivate *priv;
+
g_return_if_fail (GTK_IS_CONTAINER (container));
g_return_if_fail (resize_mode <= GTK_RESIZE_IMMEDIATE);
+
+ priv = container->priv;
- if (GTK_WIDGET_TOPLEVEL (container) &&
+ if (gtk_widget_is_toplevel (GTK_WIDGET (container)) &&
resize_mode == GTK_RESIZE_PARENT)
{
resize_mode = GTK_RESIZE_QUEUE;
}
- if (container->resize_mode != resize_mode)
+ if (priv->resize_mode != resize_mode)
{
- container->resize_mode = resize_mode;
+ priv->resize_mode = resize_mode;
gtk_widget_queue_resize (GTK_WIDGET (container));
g_object_notify (G_OBJECT (container), "resize-mode");
{
g_return_val_if_fail (GTK_IS_CONTAINER (container), GTK_RESIZE_PARENT);
- return container->resize_mode;
+ return container->priv->resize_mode;
}
/**
{
g_return_if_fail (GTK_IS_CONTAINER (container));
- container->reallocate_redraws = needs_redraws ? TRUE : FALSE;
+ container->priv->reallocate_redraws = needs_redraws ? TRUE : FALSE;
}
static GtkContainer*
gtk_container_get_resize_container (GtkContainer *container)
{
+ GtkWidget *parent;
GtkWidget *widget = GTK_WIDGET (container);
- while (widget->parent)
+ while ((parent = gtk_widget_get_parent (widget)))
{
- widget = widget->parent;
+ widget = parent;
if (GTK_IS_RESIZE_CONTAINER (widget))
- break;
+ break;
}
return GTK_IS_RESIZE_CONTAINER (widget) ? (GtkContainer*) widget : NULL;
widget = slist->data;
g_slist_free_1 (slist);
- GTK_PRIVATE_UNSET_FLAG (widget, GTK_RESIZE_PENDING);
+ _gtk_widget_set_resize_pending (widget, FALSE);
gtk_container_check_resize (GTK_CONTAINER (widget));
}
return FALSE;
}
-void
-_gtk_container_queue_resize (GtkContainer *container)
+static void
+_gtk_container_queue_resize_internal (GtkContainer *container,
+ gboolean invalidate_only)
{
+ GtkContainerPrivate *priv;
GtkContainer *resize_container;
+ GtkWidget *parent;
GtkWidget *widget;
g_return_if_fail (GTK_IS_CONTAINER (container));
+ priv = container->priv;
widget = GTK_WIDGET (container);
+
resize_container = gtk_container_get_resize_container (container);
while (TRUE)
{
- GTK_PRIVATE_SET_FLAG (widget, GTK_ALLOC_NEEDED);
- GTK_PRIVATE_SET_FLAG (widget, GTK_REQUEST_NEEDED);
+ _gtk_widget_set_alloc_needed (widget, TRUE);
+ _gtk_widget_set_width_request_needed (widget, TRUE);
+ _gtk_widget_set_height_request_needed (widget, TRUE);
+
if ((resize_container && widget == GTK_WIDGET (resize_container)) ||
- !widget->parent)
+ !(parent = gtk_widget_get_parent (widget)))
break;
-
- widget = widget->parent;
+
+ widget = parent;
}
- if (resize_container)
+ if (resize_container && !invalidate_only)
{
- if (GTK_WIDGET_VISIBLE (resize_container) &&
- (GTK_WIDGET_TOPLEVEL (resize_container) || GTK_WIDGET_REALIZED (resize_container)))
+ if (gtk_widget_get_visible (GTK_WIDGET (resize_container)) &&
+ (gtk_widget_is_toplevel (GTK_WIDGET (resize_container)) ||
+ gtk_widget_get_realized (GTK_WIDGET (resize_container))))
{
- switch (resize_container->resize_mode)
+ switch (resize_container->priv->resize_mode)
{
case GTK_RESIZE_QUEUE:
- if (!GTK_CONTAINER_RESIZE_PENDING (resize_container))
+ if (!_gtk_widget_get_resize_pending (GTK_WIDGET (resize_container)))
{
- GTK_PRIVATE_SET_FLAG (resize_container, GTK_RESIZE_PENDING);
+ _gtk_widget_set_resize_pending (GTK_WIDGET (resize_container), TRUE);
if (container_resize_queue == NULL)
gdk_threads_add_idle_full (GTK_PRIORITY_RESIZE,
gtk_container_idle_sizer,
* changed while they where hidden (currently only evaluated by
* toplevels).
*/
- resize_container->need_resize = TRUE;
+ resize_container->priv->need_resize = TRUE;
}
}
}
+/**
+ * _gtk_container_queue_resize:
+ * @container: a #GtkContainer
+ *
+ * Determines the "resize container" in the hierarchy above this container
+ * (typically the toplevel, but other containers can be set as resize
+ * containers with gtk_container_set_resize_mode()), marks the container
+ * and all parents up to and including the resize container as needing
+ * to have sizes recompted, and if necessary adds the resize container
+ * to the queue of containers that will be resized out at idle.
+ */
+void
+_gtk_container_queue_resize (GtkContainer *container)
+{
+ _gtk_container_queue_resize_internal (container, FALSE);
+}
+
+/**
+ * _gtk_container_resize_invalidate:
+ * @container: a #GtkContainer
+ *
+ * Invalidates cached sizes like _gtk_container_queue_resize() but doesn't
+ * actually queue the resize container for resize.
+ */
+void
+_gtk_container_resize_invalidate (GtkContainer *container)
+{
+ _gtk_container_queue_resize_internal (container, TRUE);
+}
+
void
gtk_container_check_resize (GtkContainer *container)
{
gtk_container_real_check_resize (GtkContainer *container)
{
GtkWidget *widget = GTK_WIDGET (container);
+ GtkAllocation allocation;
GtkRequisition requisition;
-
- gtk_widget_size_request (widget, &requisition);
-
- if (requisition.width > widget->allocation.width ||
- requisition.height > widget->allocation.height)
+
+ gtk_widget_get_preferred_size (widget,
+ &requisition, NULL);
+ gtk_widget_get_allocation (widget, &allocation);
+
+ if (requisition.width > allocation.width ||
+ requisition.height > allocation.height)
{
if (GTK_IS_RESIZE_CONTAINER (container))
- gtk_widget_size_allocate (GTK_WIDGET (container),
- >K_WIDGET (container)->allocation);
+ {
+ gtk_widget_size_allocate (widget, &allocation);
+ gtk_widget_set_allocation (widget, &allocation);
+ }
else
gtk_widget_queue_resize (widget);
}
void
gtk_container_resize_children (GtkContainer *container)
{
+ GtkAllocation allocation;
GtkWidget *widget;
/* resizing invariants:
g_return_if_fail (GTK_IS_CONTAINER (container));
widget = GTK_WIDGET (container);
- gtk_widget_size_allocate (widget, &widget->allocation);
+ gtk_widget_get_allocation (widget, &allocation);
+
+ gtk_widget_size_allocate (widget, &allocation);
+ gtk_widget_set_allocation (widget, &allocation);
+}
+
+static void
+gtk_container_adjust_size_request (GtkWidget *widget,
+ GtkOrientation orientation,
+ gint for_size,
+ gint *minimum_size,
+ gint *natural_size)
+{
+ GtkContainer *container;
+
+ container = GTK_CONTAINER (widget);
+
+ if (GTK_CONTAINER_GET_CLASS (widget)->handle_border_width)
+ {
+ int border_width;
+
+ border_width = container->priv->border_width;
+
+ *minimum_size += border_width * 2;
+ *natural_size += border_width * 2;
+ }
+
+ /* chain up last so gtk_widget_set_size_request() values
+ * will have a chance to overwrite our border width.
+ */
+ parent_class->adjust_size_request (widget, orientation, for_size,
+ minimum_size, natural_size);
+}
+
+static void
+gtk_container_adjust_size_allocation (GtkWidget *widget,
+ GtkAllocation *allocation)
+{
+ GtkContainer *container;
+ int border_width;
+
+ container = GTK_CONTAINER (widget);
+
+ parent_class->adjust_size_allocation (widget, allocation);
+
+ if (!GTK_CONTAINER_GET_CLASS (widget)->handle_border_width)
+ return;
+
+ border_width = container->priv->border_width;
+
+ allocation->width -= border_width * 2;
+ allocation->height -= border_width * 2;
+
+ /* If we get a pathological too-small allocation to hold
+ * even the border width, leave all allocation to the actual
+ * widget, and leave x,y unchanged. (GtkWidget's min size is
+ * 1x1 if you're wondering why <1 and not <0)
+ *
+ * As long as we have space, set x,y properly.
+ */
+
+ if (allocation->width < 1)
+ {
+ allocation->width += border_width * 2;
+ }
+ else
+ {
+ allocation->x += border_width;
+ }
+
+ if (allocation->height < 1)
+ {
+ allocation->height += border_width * 2;
+ }
+ else
+ {
+ allocation->y += border_width;
+ }
+}
+
+/**
+ * gtk_container_class_handle_border_width:
+ * @klass: the class struct of a #GtkContainer subclass
+ *
+ * Modifies a subclass of #GtkContainerClass to automatically add and
+ * remove the border-width setting on GtkContainer. This allows the
+ * subclass to ignore the border width in its size request and
+ * allocate methods. The intent is for a subclass to invoke this
+ * in its class_init function.
+ *
+ * gtk_container_class_handle_border_width() is necessary because it
+ * would break API too badly to make this behavior the default. So
+ * subclasses must "opt in" to the parent class handling border_width
+ * for them.
+ */
+void
+gtk_container_class_handle_border_width (GtkContainerClass *klass)
+{
+ g_return_if_fail (GTK_IS_CONTAINER_CLASS (klass));
+
+ klass->handle_border_width = TRUE;
}
/**
/**
* gtk_container_foreach:
* @container: a #GtkContainer
- * @callback: a callback
+ * @callback: (scope call): a callback
* @callback_data: callback user data
*
* Invokes @callback on each non-internal child of @container. See
class->forall (container, FALSE, callback, callback_data);
}
-typedef struct _GtkForeachData GtkForeachData;
-struct _GtkForeachData
-{
- GtkObject *container;
- GtkCallbackMarshal callback;
- gpointer callback_data;
-};
-
-static void
-gtk_container_foreach_unmarshal (GtkWidget *child,
- gpointer data)
-{
- GtkForeachData *fdata = (GtkForeachData*) data;
- GtkArg args[2];
-
- /* first argument */
- args[0].name = NULL;
- args[0].type = G_TYPE_FROM_INSTANCE (child);
- GTK_VALUE_OBJECT (args[0]) = GTK_OBJECT (child);
-
- /* location for return value */
- args[1].name = NULL;
- args[1].type = G_TYPE_NONE;
-
- fdata->callback (fdata->container, fdata->callback_data, 1, args);
-}
-
-void
-gtk_container_foreach_full (GtkContainer *container,
- GtkCallback callback,
- GtkCallbackMarshal marshal,
- gpointer callback_data,
- GDestroyNotify notify)
-{
- g_return_if_fail (GTK_IS_CONTAINER (container));
-
- if (marshal)
- {
- GtkForeachData fdata;
-
- fdata.container = GTK_OBJECT (container);
- fdata.callback = marshal;
- fdata.callback_data = callback_data;
-
- gtk_container_foreach (container, gtk_container_foreach_unmarshal, &fdata);
- }
- else
- {
- g_return_if_fail (callback != NULL);
-
- gtk_container_foreach (container, callback, &callback_data);
- }
-
- if (notify)
- notify (callback_data);
-}
-
/**
* gtk_container_set_focus_child:
* @container: a #GtkContainer
- * @widget: a #GtkWidget, or %NULL
+ * @child: (allow-none): a #GtkWidget, or %NULL
*
- * Sets, or unsets if @widget is %NULL, the focused child of @container.
+ * Sets, or unsets if @child is %NULL, the focused child of @container.
*
* This function emits the GtkContainer::set_focus_child signal of
* @container. Implementations of #GtkContainer can override the
* default behaviour by overriding the class closure of this signal.
+ *
+ * This is function is mostly meant to be used by widgets. Applications can use
+ * gtk_widget_grab_focus() to manualy set the focus to a specific widget.
*/
void
gtk_container_set_focus_child (GtkContainer *container,
- GtkWidget *widget)
+ GtkWidget *child)
{
g_return_if_fail (GTK_IS_CONTAINER (container));
- if (widget)
- g_return_if_fail (GTK_IS_WIDGET (widget));
+ if (child)
+ g_return_if_fail (GTK_IS_WIDGET (child));
- g_signal_emit (container, container_signals[SET_FOCUS_CHILD], 0, widget);
+ g_signal_emit (container, container_signals[SET_FOCUS_CHILD], 0, child);
}
/**
* gtk_container_get_focus_child:
* @container: a #GtkContainer
*
- * Returns the current focus child widget inside @container.
+ * Returns the current focus child widget inside @container. This is not the
+ * currently focused widget. That can be obtained by calling
+ * gtk_window_get_focus().
*
- * Returns: The child widget which has the focus
- * inside @container, or %NULL if none is set.
+ * Returns: The child widget which will recieve the focus inside @container when
+ * the @conatiner is focussed, or %NULL if none is set.
*
* Since: 2.14
**/
{
g_return_val_if_fail (GTK_IS_CONTAINER (container), NULL);
- return container->focus_child;
+ return container->priv->focus_child;
}
/**
* @container: a #GtkContainer
*
* Returns the container's non-internal children. See
- * gtk_container_forall() for details on what constitutes an "internal" child.
+ * gtk_container_forall() for details on what constitutes an "internal" child.
*
- * Return value: a newly-allocated list of the container's non-internal children.
+ * Return value: (element-type GtkWidget) (transfer container): a newly-allocated list of the container's non-internal children.
**/
GList*
gtk_container_get_children (GtkContainer *container)
_gtk_container_child_composite_name (GtkContainer *container,
GtkWidget *child)
{
+ gboolean composite_child;
+
g_return_val_if_fail (GTK_IS_CONTAINER (container), NULL);
g_return_val_if_fail (GTK_IS_WIDGET (child), NULL);
- g_return_val_if_fail (child->parent == GTK_WIDGET (container), NULL);
+ g_return_val_if_fail (gtk_widget_get_parent (child) == GTK_WIDGET (container), NULL);
- if (GTK_WIDGET_COMPOSITE_CHILD (child))
+ g_object_get (child, "composite-child", &composite_child, NULL);
+ if (composite_child)
{
static GQuark quark_composite_name = 0;
gchar *name;
return NULL;
}
+typedef struct {
+ gboolean hexpand;
+ gboolean vexpand;
+} ComputeExpandData;
+
+static void
+gtk_container_compute_expand_callback (GtkWidget *widget,
+ gpointer client_data)
+{
+ ComputeExpandData *data = client_data;
+
+ /* note that we don't get_expand on the child if we already know we
+ * have to expand, so we only recurse into children until we find
+ * one that expands and then we basically don't do any more
+ * work. This means that we can leave some children in a
+ * need_compute_expand state, which is fine, as long as GtkWidget
+ * doesn't rely on an invariant that "if a child has
+ * need_compute_expand, its parents also do"
+ *
+ * gtk_widget_compute_expand() always returns FALSE if the
+ * child is !visible so that's taken care of.
+ */
+ data->hexpand = data->hexpand ||
+ gtk_widget_compute_expand (widget, GTK_ORIENTATION_HORIZONTAL);
+
+ data->vexpand = data->vexpand ||
+ gtk_widget_compute_expand (widget, GTK_ORIENTATION_VERTICAL);
+}
+
+static void
+gtk_container_compute_expand (GtkWidget *widget,
+ gboolean *hexpand_p,
+ gboolean *vexpand_p)
+{
+ ComputeExpandData data;
+
+ data.hexpand = FALSE;
+ data.vexpand = FALSE;
+
+ gtk_container_forall (GTK_CONTAINER (widget),
+ gtk_container_compute_expand_callback,
+ &data);
+
+ *hexpand_p = data.hexpand;
+ *vexpand_p = data.vexpand;
+}
+
static void
gtk_container_real_set_focus_child (GtkContainer *container,
GtkWidget *child)
{
+ GtkContainerPrivate *priv;
+
g_return_if_fail (GTK_IS_CONTAINER (container));
g_return_if_fail (child == NULL || GTK_IS_WIDGET (child));
- if (child != container->focus_child)
+ priv = container->priv;
+
+ if (child != priv->focus_child)
{
- if (container->focus_child)
- g_object_unref (container->focus_child);
- container->focus_child = child;
- if (container->focus_child)
- g_object_ref (container->focus_child);
+ if (priv->focus_child)
+ g_object_unref (priv->focus_child);
+ priv->focus_child = child;
+ if (priv->focus_child)
+ g_object_ref (priv->focus_child);
}
/* check for h/v adjustments
*/
- if (container->focus_child)
+ if (priv->focus_child)
{
GtkAdjustment *hadj;
GtkAdjustment *vadj;
+ GtkAllocation allocation;
GtkWidget *focus_child;
gint x, y;
if (hadj || vadj)
{
- focus_child = container->focus_child;
- while (GTK_IS_CONTAINER (focus_child) &&
- GTK_CONTAINER (focus_child)->focus_child)
+ focus_child = priv->focus_child;
+ while (GTK_IS_CONTAINER (focus_child) && gtk_container_get_focus_child (GTK_CONTAINER (focus_child)))
{
- focus_child = GTK_CONTAINER (focus_child)->focus_child;
+ focus_child = gtk_container_get_focus_child (GTK_CONTAINER (focus_child));
}
- gtk_widget_translate_coordinates (focus_child, container->focus_child,
+ gtk_widget_translate_coordinates (focus_child, priv->focus_child,
0, 0, &x, &y);
- x += container->focus_child->allocation.x;
- y += container->focus_child->allocation.y;
-
+ gtk_widget_get_allocation (priv->focus_child, &allocation);
+ x += allocation.x;
+ y += allocation.y;
+
+ gtk_widget_get_allocation (focus_child, &allocation);
+
if (vadj)
- gtk_adjustment_clamp_page (vadj, y, y + focus_child->allocation.height);
-
+ gtk_adjustment_clamp_page (vadj, y, y + allocation.height);
+
if (hadj)
- gtk_adjustment_clamp_page (hadj, x, x + focus_child->allocation.width);
+ gtk_adjustment_clamp_page (hadj, x, x + allocation.width);
}
}
}
GList *sorted_children;
gint return_val;
GtkContainer *container;
+ GtkContainerPrivate *priv;
g_return_val_if_fail (GTK_IS_CONTAINER (widget), FALSE);
container = GTK_CONTAINER (widget);
+ priv = container->priv;
return_val = FALSE;
- if (GTK_WIDGET_CAN_FOCUS (container))
+ if (gtk_widget_get_can_focus (widget))
{
- if (!GTK_WIDGET_HAS_FOCUS (container))
+ if (!gtk_widget_has_focus (widget))
{
- gtk_widget_grab_focus (GTK_WIDGET (container));
+ gtk_widget_grab_focus (widget);
return_val = TRUE;
}
}
/* Get a list of the containers children, allowing focus
* chain to override.
*/
- if (container->has_focus_chain)
+ if (priv->has_focus_chain)
children = g_list_copy (get_focus_chain (container));
else
children = gtk_container_get_all_children (container);
- if (container->has_focus_chain &&
+ if (priv->has_focus_chain &&
(direction == GTK_DIR_TAB_FORWARD ||
direction == GTK_DIR_TAB_BACKWARD))
{
gconstpointer b,
gpointer data)
{
+ GtkAllocation child1_allocation, child2_allocation;
const GtkWidget *child1 = a;
const GtkWidget *child2 = b;
GtkTextDirection text_direction = GPOINTER_TO_INT (data);
- gint y1 = child1->allocation.y + child1->allocation.height / 2;
- gint y2 = child2->allocation.y + child2->allocation.height / 2;
+ gtk_widget_get_allocation ((GtkWidget *) child1, &child1_allocation);
+ gtk_widget_get_allocation ((GtkWidget *) child2, &child2_allocation);
+
+ gint y1 = child1_allocation.y + child1_allocation.height / 2;
+ gint y2 = child2_allocation.y + child2_allocation.height / 2;
if (y1 == y2)
{
- gint x1 = child1->allocation.x + child1->allocation.width / 2;
- gint x2 = child2->allocation.x + child2->allocation.width / 2;
-
+ gint x1 = child1_allocation.x + child1_allocation.width / 2;
+ gint x2 = child2_allocation.x + child2_allocation.width / 2;
+
if (text_direction == GTK_TEXT_DIR_RTL)
return (x1 < x2) ? 1 : ((x1 == x2) ? 0 : -1);
else
GtkWidget *widget,
GdkRectangle *allocation)
{
- *allocation = widget->allocation;
+ gtk_widget_set_allocation (widget, allocation);
return gtk_widget_translate_coordinates (widget, GTK_WIDGET (container),
0, 0, &allocation->x, &allocation->y);
while (widget && widget != (GtkWidget *)container)
{
- GtkWidget *parent = widget->parent;
- if (parent && ((GtkContainer *)parent)->focus_child != widget)
+ GtkWidget *parent;
+
+ parent = gtk_widget_get_parent (widget);
+
+ if (parent && (gtk_container_get_focus_child (GTK_CONTAINER (parent)) != widget))
goto next;
widget = parent;
{
GtkWidget *widget = GTK_WIDGET (container);
GtkWidget *toplevel = gtk_widget_get_toplevel (widget);
+ GtkWidget *old_focus;
- if (GTK_IS_WINDOW (toplevel) && GTK_WINDOW (toplevel)->focus_widget)
+ if (GTK_IS_WINDOW (toplevel))
{
- GtkWidget *old_focus = GTK_WINDOW (toplevel)->focus_widget;
-
- return get_allocation_coords (container, old_focus, old_focus_rect);
+ old_focus = gtk_window_get_focus (GTK_WINDOW (toplevel));
+ if (old_focus)
+ return get_allocation_coords (container, old_focus, old_focus_rect);
}
- else
- return FALSE;
+
+ return FALSE;
}
typedef struct _CompareInfo CompareInfo;
{
/* No old focus widget, need to figure out starting x,y some other way
*/
+ GtkAllocation allocation;
GtkWidget *widget = GTK_WIDGET (container);
GdkRectangle old_focus_rect;
+ gtk_widget_get_allocation (widget, &allocation);
+
if (old_focus_coords (container, &old_focus_rect))
{
compare.x = old_focus_rect.x + old_focus_rect.width / 2;
}
else
{
- if (GTK_WIDGET_NO_WINDOW (widget))
- compare.x = widget->allocation.x + widget->allocation.width / 2;
+ if (!gtk_widget_get_has_window (widget))
+ compare.x = allocation.x + allocation.width / 2;
else
- compare.x = widget->allocation.width / 2;
+ compare.x = allocation.width / 2;
}
- if (GTK_WIDGET_NO_WINDOW (widget))
- compare.y = (direction == GTK_DIR_DOWN) ? widget->allocation.y : widget->allocation.y + widget->allocation.height;
+ if (!gtk_widget_get_has_window (widget))
+ compare.y = (direction == GTK_DIR_DOWN) ? allocation.y : allocation.y + allocation.height;
else
- compare.y = (direction == GTK_DIR_DOWN) ? 0 : + widget->allocation.height;
+ compare.y = (direction == GTK_DIR_DOWN) ? 0 : + allocation.height;
}
children = g_list_sort_with_data (children, up_down_compare, &compare);
{
/* No old focus widget, need to figure out starting x,y some other way
*/
+ GtkAllocation allocation;
GtkWidget *widget = GTK_WIDGET (container);
GdkRectangle old_focus_rect;
+ gtk_widget_get_allocation (widget, &allocation);
+
if (old_focus_coords (container, &old_focus_rect))
{
compare.y = old_focus_rect.y + old_focus_rect.height / 2;
}
else
{
- if (GTK_WIDGET_NO_WINDOW (widget))
- compare.y = widget->allocation.y + widget->allocation.height / 2;
+ if (!gtk_widget_get_has_window (widget))
+ compare.y = allocation.y + allocation.height / 2;
else
- compare.y = widget->allocation.height / 2;
+ compare.y = allocation.height / 2;
}
- if (GTK_WIDGET_NO_WINDOW (widget))
- compare.x = (direction == GTK_DIR_RIGHT) ? widget->allocation.x : widget->allocation.x + widget->allocation.width;
+ if (!gtk_widget_get_has_window (widget))
+ compare.x = (direction == GTK_DIR_RIGHT) ? allocation.x : allocation.x + allocation.width;
else
- compare.x = (direction == GTK_DIR_RIGHT) ? 0 : widget->allocation.width;
+ compare.x = (direction == GTK_DIR_RIGHT) ? 0 : allocation.width;
}
children = g_list_sort_with_data (children, left_right_compare, &compare);
* @children: a list of descendents of @container (they don't
* have to be direct children)
* @direction: focus direction
- * @old_focus: widget to use for the starting position, or %NULL
+ * @old_focus: (allow-none): widget to use for the starting position, or %NULL
* to determine this automatically.
* (Note, this argument isn't used for GTK_DIR_TAB_*,
* which is the only @direction we use currently,
while (children)
{
- if (GTK_WIDGET_REALIZED (children->data))
+ if (gtk_widget_get_realized (children->data))
visible_children = g_list_prepend (visible_children, children->data);
children = children->next;
}
GList *children,
GtkDirectionType direction)
{
+ GtkContainerPrivate *priv = container->priv;
GtkWidget *focus_child;
GtkWidget *child;
- focus_child = container->focus_child;
+ focus_child = priv->focus_child;
while (children)
{
return TRUE;
}
}
- else if (GTK_WIDGET_DRAWABLE (child) &&
+ else if (gtk_widget_is_drawable (child) &&
gtk_widget_is_ancestor (child, GTK_WIDGET (container)))
{
if (gtk_widget_child_focus (child, direction))
}
/**
- * gtk_container_set_focus_chain:
+ * gtk_container_set_focus_chain:
* @container: a #GtkContainer
- * @focusable_widgets: the new focus chain
+ * @focusable_widgets: (transfer none) (element-type GtkWidget):
+ * the new focus chain
*
* Sets a focus chain, overriding the one computed automatically by GTK+.
*
{
GList *chain;
GList *tmp_list;
+ GtkContainerPrivate *priv;
g_return_if_fail (GTK_IS_CONTAINER (container));
+
+ priv = container->priv;
- if (container->has_focus_chain)
+ if (priv->has_focus_chain)
gtk_container_unset_focus_chain (container);
- container->has_focus_chain = TRUE;
+ priv->has_focus_chain = TRUE;
chain = NULL;
tmp_list = focusable_widgets;
/**
* gtk_container_get_focus_chain:
* @container: a #GtkContainer
- * @focusable_widgets: location to store the focus chain of the
+ * @focusable_widgets: (element-type GtkWidget) (out) (transfer container): location
+ * to store the focus chain of the
* container, or %NULL. You should free this list
* using g_list_free() when you are done with it, however
* no additional reference count is added to the
gtk_container_get_focus_chain (GtkContainer *container,
GList **focus_chain)
{
+ GtkContainerPrivate *priv;
+
g_return_val_if_fail (GTK_IS_CONTAINER (container), FALSE);
+ priv = container->priv;
+
if (focus_chain)
{
- if (container->has_focus_chain)
+ if (priv->has_focus_chain)
*focus_chain = g_list_copy (get_focus_chain (container));
else
*focus_chain = NULL;
}
- return container->has_focus_chain;
+ return priv->has_focus_chain;
}
/**
**/
void
gtk_container_unset_focus_chain (GtkContainer *container)
-{
+{
+ GtkContainerPrivate *priv;
+
g_return_if_fail (GTK_IS_CONTAINER (container));
- if (container->has_focus_chain)
+ priv = container->priv;
+
+ if (priv->has_focus_chain)
{
GList *chain;
GList *tmp_list;
chain = get_focus_chain (container);
- container->has_focus_chain = FALSE;
+ priv->has_focus_chain = FALSE;
g_object_set_data (G_OBJECT (container),
I_("gtk-container-focus-chain"),
* Retrieves the vertical focus adjustment for the container. See
* gtk_container_set_focus_vadjustment().
*
- * Return value: the vertical focus adjustment, or %NULL if
+ * Return value: (transfer none): the vertical focus adjustment, or %NULL if
* none has been set.
**/
GtkAdjustment *
* Retrieves the horizontal focus adjustment for the container. See
* gtk_container_set_focus_hadjustment ().
*
- * Return value: the horizontal focus adjustment, or %NULL if
+ * Return value: (transfer none): the horizontal focus adjustment, or %NULL if
* none has been set.
**/
GtkAdjustment *
static void
-gtk_container_expose_child (GtkWidget *child,
- gpointer client_data)
+gtk_container_draw_child (GtkWidget *child,
+ gpointer client_data)
{
struct {
GtkWidget *container;
- GdkEventExpose *event;
+ cairo_t *cr;
} *data = client_data;
- gtk_container_propagate_expose (GTK_CONTAINER (data->container),
- child,
- data->event);
+ gtk_container_propagate_draw (GTK_CONTAINER (data->container),
+ child,
+ data->cr);
}
static gint
-gtk_container_expose (GtkWidget *widget,
- GdkEventExpose *event)
+gtk_container_draw (GtkWidget *widget,
+ cairo_t *cr)
{
struct {
GtkWidget *container;
- GdkEventExpose *event;
+ cairo_t *cr;
} data;
- g_return_val_if_fail (GTK_IS_CONTAINER (widget), FALSE);
- g_return_val_if_fail (event != NULL, FALSE);
-
+ data.container = widget;
+ data.cr = cr;
- if (GTK_WIDGET_DRAWABLE (widget))
- {
- data.container = widget;
- data.event = event;
-
- gtk_container_forall (GTK_CONTAINER (widget),
- gtk_container_expose_child,
- &data);
- }
+ gtk_container_forall (GTK_CONTAINER (widget),
+ gtk_container_draw_child,
+ &data);
return FALSE;
}
gtk_container_map_child (GtkWidget *child,
gpointer client_data)
{
- if (GTK_WIDGET_VISIBLE (child) &&
- GTK_WIDGET_CHILD_VISIBLE (child) &&
- !GTK_WIDGET_MAPPED (child))
+ if (gtk_widget_get_visible (child) &&
+ gtk_widget_get_child_visible (child) &&
+ !gtk_widget_get_mapped (child))
gtk_widget_map (child);
}
static void
gtk_container_map (GtkWidget *widget)
{
- GTK_WIDGET_SET_FLAGS (widget, GTK_MAPPED);
+ gtk_widget_set_mapped (widget, TRUE);
gtk_container_forall (GTK_CONTAINER (widget),
gtk_container_map_child,
NULL);
- if (!GTK_WIDGET_NO_WINDOW (widget))
- gdk_window_show (widget->window);
+ if (gtk_widget_get_has_window (widget))
+ gdk_window_show (gtk_widget_get_window (widget));
}
static void
gtk_container_unmap (GtkWidget *widget)
{
- GTK_WIDGET_UNSET_FLAGS (widget, GTK_MAPPED);
+ gtk_widget_set_mapped (widget, FALSE);
- if (!GTK_WIDGET_NO_WINDOW (widget))
- gdk_window_hide (widget->window);
+ if (gtk_widget_get_has_window (widget))
+ gdk_window_hide (gtk_widget_get_window (widget));
else
gtk_container_forall (GTK_CONTAINER (widget),
(GtkCallback)gtk_widget_unmap,
}
/**
- * gtk_container_propagate_expose:
+ * gtk_container_propagate_draw:
* @container: a #GtkContainer
* @child: a child of @container
- * @event: a expose event sent to container
+ * @cr: Cairo context as passed to the container. If you want to use @cr
+ * in container's draw function, consider using cairo_save() and
+ * cairo_restore() before calling this function.
*
- * When a container receives an expose event, it must send synthetic
- * expose events to all children that don't have their own #GdkWindows.
- * This function provides a convenient way of doing this. A container,
- * when it receives an expose event, calls gtk_container_propagate_expose()
- * once for each child, passing in the event the container received.
+ * When a container receives a call to the draw function, it must send
+ * synthetic #GtkWidget::draw calls to all children that don't have their
+ * own #GdkWindows. This function provides a convenient way of doing this.
+ * A container, when it receives a call to its #GtkWidget::draw function,
+ * calls gtk_container_propagate_draw() once for each child, passing in
+ * the @cr the container received.
*
- * gtk_container_propagate_expose() takes care of deciding whether
- * an expose event needs to be sent to the child, intersecting
- * the event's area with the child area, and sending the event.
+ * gtk_container_propagate_draw() takes care of translating the origin of @cr,
+ * and deciding whether the draw needs to be sent to the child. It is a
+ * convenient and optimized way of getting the same effect as calling
+ * gtk_widget_draw() on the child directly.
*
- * In most cases, a container can simply either simply inherit the
- * #GtkWidget::expose implementation from #GtkContainer, or, do some drawing
- * and then chain to the ::expose implementation from #GtkContainer.
+ * In most cases, a container can simply either inherit the
+ * #GtkWidget::draw implementation from #GtkContainer, or do some drawing
+ * and then chain to the ::draw implementation from #GtkContainer.
**/
void
-gtk_container_propagate_expose (GtkContainer *container,
- GtkWidget *child,
- GdkEventExpose *event)
+gtk_container_propagate_draw (GtkContainer *container,
+ GtkWidget *child,
+ cairo_t *cr)
{
- GdkEvent *child_event;
+ GdkEventExpose *event;
+ GtkAllocation allocation;
+ GdkWindow *window, *w;
+ int x, y;
g_return_if_fail (GTK_IS_CONTAINER (container));
g_return_if_fail (GTK_IS_WIDGET (child));
- g_return_if_fail (event != NULL);
+ g_return_if_fail (cr != NULL);
+
+ g_assert (gtk_widget_get_parent (child) == GTK_WIDGET (container));
+
+ event = _gtk_cairo_get_event (cr);
+ if (event)
+ {
+ if (gtk_widget_get_has_window (child) ||
+ gtk_widget_get_window (child) != event->window)
+ return;
+ }
- g_assert (child->parent == GTK_WIDGET (container));
+ cairo_save (cr);
+
+ /* translate coordinates. Ugly business, that. */
+ if (!gtk_widget_get_has_window (GTK_WIDGET (container)))
+ {
+ gtk_widget_get_allocation (GTK_WIDGET (container), &allocation);
+ x = -allocation.x;
+ y = -allocation.y;
+ }
+ else
+ {
+ x = 0;
+ y = 0;
+ }
+
+ window = gtk_widget_get_window (GTK_WIDGET (container));
- if (GTK_WIDGET_DRAWABLE (child) &&
- GTK_WIDGET_NO_WINDOW (child) &&
- (child->window == event->window))
+ for (w = gtk_widget_get_window (child); w && w != window; w = gdk_window_get_parent (w))
{
- child_event = gdk_event_new (GDK_EXPOSE);
- child_event->expose = *event;
- g_object_ref (child_event->expose.window);
+ int wx, wy;
+ gdk_window_get_position (w, &wx, &wy);
+ x += wx;
+ y += wy;
+ }
- child_event->expose.region = gtk_widget_region_intersect (child, event->region);
- if (!gdk_region_empty (child_event->expose.region))
- {
- gdk_region_get_clipbox (child_event->expose.region, &child_event->expose.area);
- gtk_widget_send_expose (child, child_event);
- }
- gdk_event_free (child_event);
+ if (w == NULL)
+ {
+ x = 0;
+ y = 0;
}
+
+ if (!gtk_widget_get_has_window (child))
+ {
+ gtk_widget_get_allocation (child, &allocation);
+ x += allocation.x;
+ y += allocation.y;
+ }
+
+ cairo_translate (cr, x, y);
+
+ _gtk_widget_draw_internal (child, cr, TRUE);
+
+ cairo_restore (cr);
+}
+
+gboolean
+_gtk_container_get_need_resize (GtkContainer *container)
+{
+ return container->priv->need_resize;
+}
+
+void
+_gtk_container_set_need_resize (GtkContainer *container,
+ gboolean need_resize)
+{
+ container->priv->need_resize = need_resize;
}
-#define __GTK_CONTAINER_C__
-#include "gtkaliasdef.c"
+gboolean
+_gtk_container_get_reallocate_redraws (GtkContainer *container)
+{
+ return container->priv->reallocate_redraws;
+}
projects / ~andy / gtk / blobdiff