* Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
*
* This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Library General Public
+ * modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Library General Public License for more details.
+ * Lesser General Public License for more details.
*
- * You should have received a copy of the GNU Library General Public
- * License along with this library; if not, write to the Free
- * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
*/
+
+/*
+ * Modified by the GTK+ Team and others 1997-2000. See the AUTHORS
+ * file for a list of people on the GTK+ Team. See the ChangeLog
+ * files for a list of changes. These files are distributed with
+ * GTK+ at ftp://ftp.gtk.org/pub/gtk/.
+ */
+
+#include <stdarg.h>
#include <string.h>
+#include <stdlib.h>
+
#include "gtkcontainer.h"
#include "gtkprivate.h"
#include "gtksignal.h"
-
+#include "gtkmain.h"
+#include "gtkwindow.h"
enum {
ADD,
REMOVE,
- NEED_RESIZE,
- FOREACH,
+ CHECK_RESIZE,
FOCUS,
+ SET_FOCUS_CHILD,
LAST_SIGNAL
};
enum {
ARG_0,
ARG_BORDER_WIDTH,
- ARG_AUTO_RESIZE,
- ARG_BLOCK_RESIZE,
- ARG_CHILD
+ ARG_RESIZE_MODE,
+ ARG_CHILD,
+ ARG_REALLOCATE_REDRAWS
};
+typedef struct _GtkChildArgInfo GtkChildArgInfo;
+struct _GtkChildArgInfo
+{
+ gchar *name;
+ GtkType type;
+ GtkType class_type;
+ guint arg_flags;
+ guint arg_id;
+ guint seq_id;
+};
-typedef void (*GtkContainerSignal1) (GtkObject *object,
- gpointer arg1,
- gpointer data);
-typedef void (*GtkContainerSignal2) (GtkObject *object,
- gpointer arg1,
- gpointer arg2,
- gpointer data);
-typedef gint (*GtkContainerSignal3) (GtkObject *object,
- gint arg1,
- gpointer data);
-typedef gint (*GtkContainerSignal4) (GtkObject *object,
- gpointer data);
-
-
-static void gtk_container_marshal_signal_1 (GtkObject *object,
- GtkSignalFunc func,
- gpointer func_data,
- GtkArg *args);
-static void gtk_container_marshal_signal_2 (GtkObject *object,
- GtkSignalFunc func,
- gpointer func_data,
- GtkArg *args);
-static void gtk_container_marshal_signal_3 (GtkObject *object,
- GtkSignalFunc func,
- gpointer func_data,
- GtkArg *args);
-static void gtk_container_marshal_signal_4 (GtkObject *object,
- GtkSignalFunc func,
- gpointer func_data,
- GtkArg *args);
-
-
-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_get_arg (GtkContainer *container,
- GtkArg *arg,
- guint arg_id);
-static void gtk_container_set_arg (GtkContainer *container,
- GtkArg *arg,
- guint arg_id);
-static gint gtk_real_container_need_resize (GtkContainer *container);
-static gint gtk_real_container_focus (GtkContainer *container,
- GtkDirectionType direction);
-static gint gtk_container_focus_tab (GtkContainer *container,
- GList *children,
- GtkDirectionType direction);
-static gint gtk_container_focus_up_down (GtkContainer *container,
- GList *children,
- GtkDirectionType direction);
-static gint gtk_container_focus_left_right (GtkContainer *container,
- GList *children,
- GtkDirectionType direction);
-static gint gtk_container_focus_move (GtkContainer *container,
- GList *children,
- GtkDirectionType direction);
-static void gtk_container_children_callback (GtkWidget *widget,
- gpointer client_data);
-static void gtk_container_show_all (GtkWidget *widget);
-static void gtk_container_hide_all (GtkWidget *widget);
-
-
-
-static gint container_signals[LAST_SIGNAL] = { 0 };
+static void gtk_container_base_class_init (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_get_arg (GtkObject *object,
+ GtkArg *arg,
+ guint arg_id);
+static void gtk_container_set_arg (GtkObject *object,
+ GtkArg *arg,
+ guint arg_id);
+static void gtk_container_add_unimplemented (GtkContainer *container,
+ GtkWidget *widget);
+static void gtk_container_remove_unimplemented (GtkContainer *container,
+ GtkWidget *widget);
+static void gtk_container_real_check_resize (GtkContainer *container);
+static gboolean gtk_container_real_focus (GtkContainer *container,
+ GtkDirectionType direction);
+static void gtk_container_real_set_focus_child (GtkContainer *container,
+ GtkWidget *widget);
+static gboolean gtk_container_focus_tab (GtkContainer *container,
+ GList *children,
+ GtkDirectionType direction);
+static gboolean gtk_container_focus_up_down (GtkContainer *container,
+ GList **children,
+ GtkDirectionType direction);
+static gboolean gtk_container_focus_left_right (GtkContainer *container,
+ GList **children,
+ GtkDirectionType direction);
+static gboolean gtk_container_focus_move (GtkContainer *container,
+ GList *children,
+ GtkDirectionType direction);
+static void gtk_container_children_callback (GtkWidget *widget,
+ 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 gchar* gtk_container_child_default_composite_name (GtkContainer *container,
+ GtkWidget *child);
+
+
+
+static guint container_signals[LAST_SIGNAL] = { 0 };
+static GHashTable *container_child_arg_info_ht = NULL;
static GtkWidgetClass *parent_class = NULL;
-guint
-gtk_container_get_type ()
+static const gchar *vadjustment_key = "gtk-vadjustment";
+static guint vadjustment_key_id = 0;
+static const gchar *hadjustment_key = "gtk-hadjustment";
+static guint hadjustment_key_id = 0;
+static GSList *container_resize_queue = NULL;
+
+GtkType
+gtk_container_get_type (void)
{
- static guint container_type = 0;
+ static GtkType container_type = 0;
if (!container_type)
{
- GtkTypeInfo container_info =
+ static const GtkTypeInfo container_info =
{
"GtkContainer",
sizeof (GtkContainer),
sizeof (GtkContainerClass),
(GtkClassInitFunc) gtk_container_class_init,
(GtkObjectInitFunc) gtk_container_init,
- (GtkArgSetFunc) gtk_container_set_arg,
- (GtkArgGetFunc) gtk_container_get_arg,
+ /* reserved_1 */ NULL,
+ /* reserved_2 */ NULL,
+ (GtkClassInitFunc) gtk_container_base_class_init,
};
container_type = gtk_type_unique (gtk_widget_get_type (), &container_info);
return container_type;
}
+static void
+gtk_container_base_class_init (GtkContainerClass *class)
+{
+ /* reset instance specifc class fields that don't get inherited */
+ class->n_child_args = 0;
+ class->set_child_arg = NULL;
+ class->get_child_arg = NULL;
+}
+
static void
gtk_container_class_init (GtkContainerClass *class)
{
object_class = (GtkObjectClass*) class;
widget_class = (GtkWidgetClass*) class;
+
parent_class = gtk_type_class (gtk_widget_get_type ());
+
+ container_child_arg_info_ht = g_hash_table_new (gtk_arg_info_hash,
+ gtk_arg_info_equal);
+
+ vadjustment_key_id = g_quark_from_static_string (vadjustment_key);
+ hadjustment_key_id = g_quark_from_static_string (hadjustment_key);
+
+
+ object_class->get_arg = gtk_container_get_arg;
+ object_class->set_arg = gtk_container_set_arg;
+ object_class->destroy = gtk_container_destroy;
+
+ widget_class->show_all = gtk_container_show_all;
+ widget_class->hide_all = gtk_container_hide_all;
+ widget_class->expose_event = gtk_container_expose;
- gtk_object_add_arg_type ("GtkContainer::border_width", GTK_TYPE_LONG, GTK_ARG_READWRITE, ARG_BORDER_WIDTH);
- gtk_object_add_arg_type ("GtkContainer::auto_resize", GTK_TYPE_BOOL, GTK_ARG_READWRITE, ARG_AUTO_RESIZE);
- gtk_object_add_arg_type ("GtkContainer::block_resize", GTK_TYPE_BOOL, GTK_ARG_READWRITE, ARG_BLOCK_RESIZE);
+ class->add = gtk_container_add_unimplemented;
+ class->remove = gtk_container_remove_unimplemented;
+ class->check_resize = gtk_container_real_check_resize;
+ class->forall = NULL;
+ class->focus = gtk_container_real_focus;
+ class->set_focus_child = gtk_container_real_set_focus_child;
+ class->child_type = NULL;
+ class->composite_name = gtk_container_child_default_composite_name;
+
+ gtk_object_add_arg_type ("GtkContainer::border_width", GTK_TYPE_UINT, GTK_ARG_READWRITE, ARG_BORDER_WIDTH);
+ gtk_object_add_arg_type ("GtkContainer::resize_mode", GTK_TYPE_RESIZE_MODE, GTK_ARG_READWRITE, ARG_RESIZE_MODE);
gtk_object_add_arg_type ("GtkContainer::child", GTK_TYPE_WIDGET, GTK_ARG_WRITABLE, ARG_CHILD);
+ gtk_object_add_arg_type ("GtkContainer::reallocate_redraws", GTK_TYPE_BOOL, GTK_ARG_READWRITE, ARG_REALLOCATE_REDRAWS);
container_signals[ADD] =
gtk_signal_new ("add",
GTK_RUN_FIRST,
- object_class->type,
+ GTK_CLASS_TYPE (object_class),
GTK_SIGNAL_OFFSET (GtkContainerClass, add),
- gtk_container_marshal_signal_1,
+ gtk_marshal_VOID__OBJECT,
GTK_TYPE_NONE, 1,
GTK_TYPE_WIDGET);
container_signals[REMOVE] =
gtk_signal_new ("remove",
GTK_RUN_FIRST,
- object_class->type,
+ GTK_CLASS_TYPE (object_class),
GTK_SIGNAL_OFFSET (GtkContainerClass, remove),
- gtk_container_marshal_signal_1,
+ gtk_marshal_VOID__OBJECT,
GTK_TYPE_NONE, 1,
GTK_TYPE_WIDGET);
- container_signals[NEED_RESIZE] =
- gtk_signal_new ("need_resize",
- GTK_RUN_FIRST,
- object_class->type,
- GTK_SIGNAL_OFFSET (GtkContainerClass, need_resize),
- gtk_container_marshal_signal_4,
- GTK_TYPE_BOOL, 0,
- GTK_TYPE_WIDGET);
- container_signals[FOREACH] =
- gtk_signal_new ("foreach",
- GTK_RUN_FIRST,
- object_class->type,
- GTK_SIGNAL_OFFSET (GtkContainerClass, foreach),
- gtk_container_marshal_signal_2,
- GTK_TYPE_NONE, 1,
- GTK_TYPE_C_CALLBACK);
+ container_signals[CHECK_RESIZE] =
+ gtk_signal_new ("check_resize",
+ GTK_RUN_LAST,
+ GTK_CLASS_TYPE (object_class),
+ GTK_SIGNAL_OFFSET (GtkContainerClass, check_resize),
+ gtk_marshal_VOID__VOID,
+ GTK_TYPE_NONE, 0);
container_signals[FOCUS] =
gtk_signal_new ("focus",
- GTK_RUN_FIRST,
- object_class->type,
+ GTK_RUN_LAST,
+ GTK_CLASS_TYPE (object_class),
GTK_SIGNAL_OFFSET (GtkContainerClass, focus),
- gtk_container_marshal_signal_3,
+ gtk_marshal_ENUM__ENUM,
GTK_TYPE_DIRECTION_TYPE, 1,
GTK_TYPE_DIRECTION_TYPE);
+ container_signals[SET_FOCUS_CHILD] =
+ gtk_signal_new ("set-focus-child",
+ GTK_RUN_FIRST,
+ GTK_CLASS_TYPE (object_class),
+ GTK_SIGNAL_OFFSET (GtkContainerClass, set_focus_child),
+ gtk_marshal_VOID__OBJECT,
+ GTK_TYPE_NONE, 1,
+ GTK_TYPE_WIDGET);
+}
+
+GtkType
+gtk_container_child_type (GtkContainer *container)
+{
+ GtkType slot;
+ GtkContainerClass *class;
+
+ g_return_val_if_fail (container != NULL, 0);
+ g_return_val_if_fail (GTK_IS_CONTAINER (container), 0);
+
+ class = GTK_CONTAINER_GET_CLASS (container);
+ if (class->child_type)
+ slot = class->child_type (container);
+ else
+ slot = GTK_TYPE_NONE;
+
+ return slot;
+}
- gtk_object_class_add_signals (object_class, container_signals, LAST_SIGNAL);
+/****************************************************
+ * GtkContainer child argument mechanism
+ *
+ ****************************************************/
+
+void
+gtk_container_add_with_args (GtkContainer *container,
+ GtkWidget *widget,
+ const gchar *first_arg_name,
+ ...)
+{
+ g_return_if_fail (container != NULL);
+ g_return_if_fail (GTK_IS_CONTAINER (container));
+ g_return_if_fail (widget != NULL);
+ g_return_if_fail (GTK_IS_WIDGET (widget));
+ g_return_if_fail (widget->parent == NULL);
+
+ gtk_widget_ref (GTK_WIDGET (container));
+ gtk_widget_ref (widget);
+
+ gtk_signal_emit (GTK_OBJECT (container), container_signals[ADD], widget);
- object_class->destroy = gtk_container_destroy;
+ if (widget->parent)
+ {
+ va_list var_args;
+ GSList *arg_list = NULL;
+ GSList *info_list = NULL;
+ gchar *error;
+
+ va_start (var_args, first_arg_name);
+ error = gtk_container_child_args_collect (GTK_OBJECT_TYPE (container),
+ &arg_list,
+ &info_list,
+ first_arg_name,
+ var_args);
+ va_end (var_args);
+
+ if (error)
+ {
+ g_warning ("gtk_container_add_with_args(): %s", error);
+ g_free (error);
+ }
+ else
+ {
+ GSList *slist_arg;
+ GSList *slist_info;
+
+ slist_arg = arg_list;
+ slist_info = info_list;
+ while (slist_arg)
+ {
+ gtk_container_arg_set (container, widget, slist_arg->data, slist_info->data);
+ slist_arg = slist_arg->next;
+ slist_info = slist_info->next;
+ }
+ gtk_args_collect_cleanup (arg_list, info_list);
+ }
+ }
+
+ gtk_widget_unref (widget);
+ gtk_widget_unref (GTK_WIDGET (container));
+}
+
+void
+gtk_container_addv (GtkContainer *container,
+ GtkWidget *widget,
+ guint n_args,
+ GtkArg *args)
+{
+ g_return_if_fail (container != NULL);
+ g_return_if_fail (GTK_IS_CONTAINER (container));
+ g_return_if_fail (widget != NULL);
+ g_return_if_fail (GTK_IS_WIDGET (widget));
+ g_return_if_fail (widget->parent == NULL);
+
+ gtk_widget_ref (GTK_WIDGET (container));
+ gtk_widget_ref (widget);
+
+ gtk_signal_emit (GTK_OBJECT (container), container_signals[ADD], widget);
- /* Other container classes should overwrite show_all and hide_all,
- * for the purpose of showing internal children also, which are not
- * accessable through gtk_container_foreach.
- */
- widget_class->show_all = gtk_container_show_all;
- widget_class->hide_all = gtk_container_hide_all;
+ if (widget->parent)
+ {
+ GtkArg *max_args;
+
+ for (max_args = args + n_args; args < max_args; args++)
+ gtk_container_arg_set (container, widget, args, NULL);
+ }
+
+ gtk_widget_unref (widget);
+ gtk_widget_unref (GTK_WIDGET (container));
+}
+
+void
+gtk_container_child_setv (GtkContainer *container,
+ GtkWidget *child,
+ guint n_args,
+ GtkArg *args)
+{
+ GtkArg *max_args;
+
+ g_return_if_fail (container != NULL);
+ g_return_if_fail (GTK_IS_CONTAINER (container));
+ g_return_if_fail (child != NULL);
+ g_return_if_fail (GTK_IS_WIDGET (child));
+ g_return_if_fail (child->parent != NULL);
+ if (n_args)
+ g_return_if_fail (args != NULL);
+
+ for (max_args = args + n_args; args < max_args; args++)
+ gtk_container_arg_set (container, child, args, NULL);
+}
+
+void
+gtk_container_child_getv (GtkContainer *container,
+ GtkWidget *child,
+ guint n_args,
+ GtkArg *args)
+{
+ GtkArg *max_args;
+
+ g_return_if_fail (container != NULL);
+ g_return_if_fail (GTK_IS_CONTAINER (container));
+ g_return_if_fail (child != NULL);
+ g_return_if_fail (GTK_IS_WIDGET (child));
+ g_return_if_fail (child->parent != NULL);
+ if (n_args)
+ g_return_if_fail (args != NULL);
+
+ for (max_args = args + n_args; args < max_args; args++)
+ gtk_container_arg_get (container, child, args, NULL);
+}
+
+void
+gtk_container_child_set (GtkContainer *container,
+ GtkWidget *child,
+ const gchar *first_arg_name,
+ ...)
+{
+ va_list var_args;
+ GSList *arg_list = NULL;
+ GSList *info_list = NULL;
+ gchar *error;
+
+ g_return_if_fail (container != NULL);
+ g_return_if_fail (GTK_IS_CONTAINER (container));
+ g_return_if_fail (child != NULL);
+ g_return_if_fail (GTK_IS_WIDGET (child));
+ g_return_if_fail (child->parent != NULL);
+
+ va_start (var_args, first_arg_name);
+ error = gtk_container_child_args_collect (GTK_OBJECT_TYPE (container),
+ &arg_list,
+ &info_list,
+ first_arg_name,
+ var_args);
+ va_end (var_args);
+
+ if (error)
+ {
+ g_warning ("gtk_container_child_set(): %s", error);
+ g_free (error);
+ }
+ else
+ {
+ GSList *slist_arg;
+ GSList *slist_info;
+
+ slist_arg = arg_list;
+ slist_info = info_list;
+ while (slist_arg)
+ {
+ gtk_container_arg_set (container, child, slist_arg->data, slist_info->data);
+ slist_arg = slist_arg->next;
+ slist_info = slist_info->next;
+ }
+ gtk_args_collect_cleanup (arg_list, info_list);
+ }
+}
+
+void
+gtk_container_arg_set (GtkContainer *container,
+ GtkWidget *child,
+ GtkArg *arg,
+ GtkArgInfo *info)
+{
+ GtkContainerClass *class;
+
+ g_return_if_fail (container != NULL);
+ g_return_if_fail (GTK_IS_CONTAINER (container));
+ g_return_if_fail (child != NULL);
+ g_return_if_fail (GTK_IS_WIDGET (child));
+ g_return_if_fail (arg != NULL);
+
+ if (!info)
+ {
+ gchar *error;
+
+ error = gtk_arg_get_info (GTK_OBJECT_TYPE (container),
+ container_child_arg_info_ht,
+ arg->name,
+ &info);
+ if (error)
+ {
+ g_warning ("gtk_container_arg_set(): %s", error);
+ g_free (error);
+ return;
+ }
+ }
+ g_return_if_fail (info->arg_flags & GTK_ARG_CHILD_ARG);
+
+ if (! (info->arg_flags & GTK_ARG_WRITABLE))
+ {
+ g_warning ("gtk_container_arg_set(): argument \"%s\" is not writable",
+ info->full_name);
+ return;
+ }
+ if (info->type != arg->type)
+ {
+ g_warning ("gtk_container_arg_set(): argument \"%s\" has invalid type `%s'",
+ info->full_name,
+ gtk_type_name (arg->type));
+ return;
+ }
- class->need_resize = gtk_real_container_need_resize;
- class->focus = gtk_real_container_focus;
+ class = gtk_type_class (info->class_type);
+ g_assert (class->set_child_arg != NULL);
+ class->set_child_arg (container, child, arg, info->arg_id);
+}
+
+void
+gtk_container_arg_get (GtkContainer *container,
+ GtkWidget *child,
+ GtkArg *arg,
+ GtkArgInfo *info)
+{
+ GtkContainerClass *class;
+
+ g_return_if_fail (container != NULL);
+ g_return_if_fail (GTK_IS_CONTAINER (container));
+ g_return_if_fail (child != NULL);
+ g_return_if_fail (GTK_IS_WIDGET (child));
+ g_return_if_fail (arg != NULL);
+
+ if (!info)
+ {
+ gchar *error;
+
+ error = gtk_arg_get_info (GTK_OBJECT_TYPE (container),
+ container_child_arg_info_ht,
+ arg->name,
+ &info);
+ if (error)
+ {
+ g_warning ("gtk_container_arg_get(): %s", error);
+ g_free (error);
+ arg->type = GTK_TYPE_INVALID;
+ return;
+ }
+ }
+ g_return_if_fail (info->arg_flags & GTK_ARG_CHILD_ARG);
+
+ if (! (info->arg_flags & GTK_ARG_READABLE))
+ {
+ g_warning ("gtk_container_arg_get(): argument \"%s\" is not readable",
+ info->full_name);
+ arg->type = GTK_TYPE_INVALID;
+ return;
+ }
+
+ class = gtk_type_class (info->class_type);
+ g_assert (class->get_child_arg != NULL);
+ arg->type = info->type;
+ class->get_child_arg (container, child, arg, info->arg_id);
+}
+
+void
+gtk_container_add_child_arg_type (const gchar *arg_name,
+ GtkType arg_type,
+ guint arg_flags,
+ guint arg_id)
+{
+ g_return_if_fail (arg_name != NULL);
+ g_return_if_fail (arg_type > GTK_TYPE_NONE);
+ g_return_if_fail (arg_id > 0);
+ g_return_if_fail ((arg_flags & GTK_ARG_READWRITE) == GTK_ARG_READWRITE);
+ /* g_return_if_fail ((arg_flags & GTK_ARG_CHILD_ARG) != 0); */
+
+ arg_flags |= GTK_ARG_CHILD_ARG;
+ arg_flags &= GTK_ARG_MASK;
+
+ gtk_arg_type_new_static (GTK_TYPE_CONTAINER,
+ arg_name,
+ GTK_STRUCT_OFFSET (GtkContainerClass, n_child_args),
+ container_child_arg_info_ht,
+ arg_type,
+ arg_flags,
+ arg_id);
+}
+
+gchar*
+gtk_container_child_args_collect (GtkType object_type,
+ GSList **arg_list_p,
+ GSList **info_list_p,
+ const gchar *first_arg_name,
+ va_list var_args)
+{
+ return gtk_args_collect (object_type,
+ container_child_arg_info_ht,
+ arg_list_p,
+ info_list_p,
+ first_arg_name,
+ var_args);
+}
+
+gchar*
+gtk_container_child_arg_get_info (GtkType object_type,
+ const gchar *arg_name,
+ GtkArgInfo **info_p)
+{
+ return gtk_arg_get_info (object_type,
+ container_child_arg_info_ht,
+ arg_name,
+ info_p);
+}
+
+GtkArg*
+gtk_container_query_child_args (GtkType class_type,
+ guint32 **arg_flags,
+ guint *n_args)
+{
+ g_return_val_if_fail (n_args != NULL, NULL);
+ *n_args = 0;
+ g_return_val_if_fail (gtk_type_is_a (class_type, GTK_TYPE_CONTAINER), NULL);
+
+ return gtk_args_query (class_type, container_child_arg_info_ht, arg_flags, n_args);
+}
+
+
+static void
+gtk_container_add_unimplemented (GtkContainer *container,
+ GtkWidget *widget)
+{
+ g_warning ("GtkContainerClass::add not implemented for `%s'", gtk_type_name (GTK_OBJECT_TYPE (container)));
+}
+
+static void
+gtk_container_remove_unimplemented (GtkContainer *container,
+ GtkWidget *widget)
+{
+ g_warning ("GtkContainerClass::remove not implemented for `%s'", gtk_type_name (GTK_OBJECT_TYPE (container)));
}
static void
{
container->focus_child = NULL;
container->border_width = 0;
- container->auto_resize = TRUE;
container->need_resize = FALSE;
- container->block_resize = FALSE;
+ container->resize_mode = GTK_RESIZE_PARENT;
+ container->reallocate_redraws = FALSE;
container->resize_widgets = NULL;
}
static void
gtk_container_destroy (GtkObject *object)
{
- GSList *node;
-
+ GtkContainer *container;
+
g_return_if_fail (object != NULL);
g_return_if_fail (GTK_IS_CONTAINER (object));
- for (node = GTK_CONTAINER (object)->resize_widgets; node; node = node->next)
- {
- GtkWidget *child;
-
- child = (GtkWidget*) node->data;
- GTK_PRIVATE_UNSET_FLAG (child, GTK_RESIZE_NEEDED);
- }
- g_slist_free (GTK_CONTAINER (object)->resize_widgets);
- GTK_CONTAINER (object)->resize_widgets = NULL;
+ container = GTK_CONTAINER (object);
+
+ if (GTK_CONTAINER_RESIZE_PENDING (container))
+ gtk_container_dequeue_resize_handler (container);
+ if (container->resize_widgets)
+ gtk_container_clear_resize_widgets (container);
- gtk_container_foreach (GTK_CONTAINER (object),
- (GtkCallback) gtk_widget_destroy, NULL);
+ gtk_container_foreach (container, (GtkCallback) gtk_widget_destroy, NULL);
if (GTK_OBJECT_CLASS (parent_class)->destroy)
(* GTK_OBJECT_CLASS (parent_class)->destroy) (object);
}
static void
-gtk_container_set_arg (GtkContainer *container,
+gtk_container_set_arg (GtkObject *object,
GtkArg *arg,
guint arg_id)
{
+ GtkContainer *container;
+
+ container = GTK_CONTAINER (object);
+
switch (arg_id)
{
case ARG_BORDER_WIDTH:
- gtk_container_border_width (container, GTK_VALUE_LONG (*arg));
+ gtk_container_set_border_width (container, GTK_VALUE_UINT (*arg));
break;
- case ARG_AUTO_RESIZE:
- if (GTK_VALUE_BOOL (*arg))
- gtk_container_enable_resize (container);
- else
- gtk_container_disable_resize (container);
+ case ARG_RESIZE_MODE:
+ gtk_container_set_resize_mode (container, GTK_VALUE_ENUM (*arg));
break;
- case ARG_BLOCK_RESIZE:
- if (GTK_VALUE_BOOL (*arg))
- gtk_container_block_resize (container);
- else
- gtk_container_unblock_resize (container);
+ case ARG_REALLOCATE_REDRAWS:
+ gtk_container_set_reallocate_redraws (container, GTK_VALUE_BOOL (*arg));
break;
case ARG_CHILD:
gtk_container_add (container, GTK_WIDGET (GTK_VALUE_OBJECT (*arg)));
break;
default:
- arg->type = GTK_TYPE_INVALID;
break;
}
}
static void
-gtk_container_get_arg (GtkContainer *container,
+gtk_container_get_arg (GtkObject *object,
GtkArg *arg,
guint arg_id)
{
+ GtkContainer *container;
+
+ container = GTK_CONTAINER (object);
+
switch (arg_id)
{
case ARG_BORDER_WIDTH:
- GTK_VALUE_LONG (*arg) = container->border_width;
+ GTK_VALUE_UINT (*arg) = container->border_width;
break;
- case ARG_AUTO_RESIZE:
- GTK_VALUE_BOOL (*arg) = container->auto_resize;
+ case ARG_RESIZE_MODE:
+ GTK_VALUE_ENUM (*arg) = container->resize_mode;
break;
- case ARG_BLOCK_RESIZE:
- GTK_VALUE_BOOL (*arg) = container->block_resize;
+ case ARG_REALLOCATE_REDRAWS:
+ GTK_VALUE_BOOL (*arg) = container->reallocate_redraws;
break;
default:
arg->type = GTK_TYPE_INVALID;
}
}
+/**
+ * gtk_container_set_border_width:
+ * @container: a #GtkContainer
+ * @border_width: amount of blank space to leave <emphasis>outside</emphasis> the container
+ *
+ * The border width of a container is the amount of space to leave
+ * around the outside of the container. The only exception to this is
+ * #GtkWindow; because toplevel windows can't leave space outside,
+ * they leave the space inside. The border is added on all sides of
+ * the container. To add space to only one side, one approach is to
+ * create a #GtkAlignment widget, call gtk_widget_set_usize() to give
+ * it a size, and place it on the side of the container as a spacer.
+ *
+ **/
void
-gtk_container_border_width (GtkContainer *container,
- gint border_width)
+gtk_container_set_border_width (GtkContainer *container,
+ guint border_width)
{
g_return_if_fail (container != NULL);
g_return_if_fail (GTK_IS_CONTAINER (container));
{
container->border_width = border_width;
- if (container->widget.parent && GTK_WIDGET_VISIBLE (container))
- gtk_container_need_resize (GTK_CONTAINER (container->widget.parent));
+ if (GTK_WIDGET_REALIZED (container))
+ gtk_widget_queue_resize (GTK_WIDGET (container));
}
}
+/**
+ * gtk_container_add:
+ * @container: a #GtkContainer
+ * @widget: a widget to be placed inside @container
+ *
+ * Adds @widget to @container. Typically used for simple containers
+ * such as #GtkWindow, #GtkFrame, or #GtkButton; for more complicated
+ * layout containers such as #GtkBox or #GtkTable, this function will
+ * pick default packing parameters that may not be correct. So
+ * consider functions such as gtk_box_pack_start() and
+ * gtk_table_attach() as an alternative to gtk_container_add() in
+ * those cases. A widget may be added to only one container at a time;
+ * you can't place the same widget inside two different containers.
+ **/
void
gtk_container_add (GtkContainer *container,
GtkWidget *widget)
{
+ g_return_if_fail (container != NULL);
+ g_return_if_fail (GTK_IS_CONTAINER (container));
+ g_return_if_fail (widget != NULL);
+ g_return_if_fail (GTK_IS_WIDGET (widget));
+
+ if (widget->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",
+ g_type_name (G_OBJECT_TYPE (widget)),
+ g_type_name (G_OBJECT_TYPE (container)),
+ g_type_name (G_OBJECT_TYPE (widget->parent)));
+ return;
+ }
+
gtk_signal_emit (GTK_OBJECT (container), container_signals[ADD], widget);
}
+/**
+ * gtk_container_remove:
+ * @container: a #GtkContainer
+ * @widget: a current child of @container
+ *
+ * Removes @widget from @container. @widget must be inside @container.
+ * Note that @container will own a reference to @widget, and that this
+ * may be the last reference held; so removing a widget from its
+ * container can destroy that widget. If you want to use @widget
+ * again, you need to add a reference to it while it's not inside
+ * a container, using g_object_ref().
+ **/
void
gtk_container_remove (GtkContainer *container,
GtkWidget *widget)
{
g_return_if_fail (container != NULL);
g_return_if_fail (GTK_IS_CONTAINER (container));
+ g_return_if_fail (widget != NULL);
+ g_return_if_fail (GTK_IS_WIDGET (widget));
+ g_return_if_fail (widget->parent == GTK_WIDGET (container));
+
+ gtk_signal_emit (GTK_OBJECT (container), container_signals[REMOVE], widget);
+}
- if (container->focus_child == widget)
- container->focus_child = NULL;
+void
+gtk_container_dequeue_resize_handler (GtkContainer *container)
+{
+ g_return_if_fail (GTK_IS_CONTAINER (container));
+ g_return_if_fail (GTK_CONTAINER_RESIZE_PENDING (container));
- gtk_signal_emit (GTK_OBJECT (container), container_signals[REMOVE], widget);
+ container_resize_queue = g_slist_remove (container_resize_queue, container);
+ GTK_PRIVATE_UNSET_FLAG (container, GTK_RESIZE_PENDING);
}
void
-gtk_container_disable_resize (GtkContainer *container)
+gtk_container_clear_resize_widgets (GtkContainer *container)
{
+ GSList *node;
+
g_return_if_fail (container != NULL);
g_return_if_fail (GTK_IS_CONTAINER (container));
- container->auto_resize = FALSE;
+ node = container->resize_widgets;
+
+ while (node)
+ {
+ GtkWidget *widget = node->data;
+
+ GTK_PRIVATE_UNSET_FLAG (widget, GTK_RESIZE_NEEDED);
+ node = node->next;
+ }
+
+ g_slist_free (container->resize_widgets);
+ container->resize_widgets = NULL;
}
void
-gtk_container_enable_resize (GtkContainer *container)
+gtk_container_set_resize_mode (GtkContainer *container,
+ GtkResizeMode resize_mode)
{
g_return_if_fail (container != NULL);
g_return_if_fail (GTK_IS_CONTAINER (container));
+ g_return_if_fail (resize_mode <= GTK_RESIZE_IMMEDIATE);
+
+ if (GTK_WIDGET_TOPLEVEL (container) &&
+ resize_mode == GTK_RESIZE_PARENT)
+ resize_mode = GTK_RESIZE_QUEUE;
+
+ if (container->resize_mode != resize_mode)
+ {
+ container->resize_mode = resize_mode;
+
+ if (resize_mode == GTK_RESIZE_IMMEDIATE)
+ gtk_container_check_resize (container);
+ else
+ {
+ gtk_container_clear_resize_widgets (container);
+ gtk_widget_queue_resize (GTK_WIDGET (container));
+ }
+ }
+}
+
+void
+gtk_container_set_reallocate_redraws (GtkContainer *container,
+ gboolean needs_redraws)
+{
+ g_return_if_fail (GTK_IS_CONTAINER (container));
+
+ needs_redraws = needs_redraws ? TRUE : FALSE;
+ if (needs_redraws != container->reallocate_redraws)
+ {
+ container->reallocate_redraws = needs_redraws;
+ if (container->reallocate_redraws)
+ gtk_widget_queue_draw (GTK_WIDGET (container));
+ }
+}
- container->auto_resize = TRUE;
- if (container->need_resize)
+static GtkContainer*
+gtk_container_get_resize_container (GtkContainer *container)
+{
+ GtkWidget *widget;
+
+ widget = GTK_WIDGET (container);
+
+ while (widget->parent)
{
- container->need_resize = FALSE;
- gtk_widget_queue_resize (GTK_WIDGET (container));
+ widget = widget->parent;
+ if (GTK_IS_RESIZE_CONTAINER (widget) && !GTK_WIDGET_RESIZE_NEEDED (widget))
+ break;
}
+
+ return GTK_IS_RESIZE_CONTAINER (widget) ? (GtkContainer*) widget : NULL;
+}
+
+static gboolean
+gtk_container_idle_sizer (gpointer data)
+{
+ GDK_THREADS_ENTER ();
+
+ /* we may be invoked with a container_resize_queue of NULL, because
+ * queue_resize could have been adding an extra idle function while
+ * the queue still got processed. we better just ignore such case
+ * than trying to explicitely work around them with some extra flags,
+ * since it doesn't cause any actual harm.
+ */
+ while (container_resize_queue)
+ {
+ GSList *slist;
+ GtkWidget *widget;
+
+ slist = container_resize_queue;
+ container_resize_queue = slist->next;
+ widget = slist->data;
+ g_slist_free_1 (slist);
+
+ GTK_PRIVATE_UNSET_FLAG (widget, GTK_RESIZE_PENDING);
+ gtk_container_check_resize (GTK_CONTAINER (widget));
+ }
+
+ gdk_window_process_all_updates ();
+
+ GDK_THREADS_LEAVE ();
+
+ return FALSE;
}
void
-gtk_container_block_resize (GtkContainer *container)
+gtk_container_queue_resize (GtkContainer *container)
{
+ GtkContainer *resize_container;
+
g_return_if_fail (container != NULL);
g_return_if_fail (GTK_IS_CONTAINER (container));
- container->block_resize = TRUE;
+ /* clear resize widgets for resize containers
+ * before aborting prematurely. this is especially
+ * important for toplevels which may need imemdiate
+ * processing or their resize handler to be queued.
+ */
+ if (GTK_IS_RESIZE_CONTAINER (container))
+ gtk_container_clear_resize_widgets (container);
+ if (GTK_OBJECT_DESTROYED (container) ||
+ GTK_WIDGET_RESIZE_NEEDED (container))
+ return;
+
+ resize_container = gtk_container_get_resize_container (container);
+
+ if (resize_container)
+ {
+ if (GTK_WIDGET_VISIBLE (resize_container) &&
+ (GTK_WIDGET_TOPLEVEL (resize_container) || GTK_WIDGET_DRAWABLE (resize_container)))
+ {
+ switch (resize_container->resize_mode)
+ {
+ case GTK_RESIZE_QUEUE:
+ if (!GTK_CONTAINER_RESIZE_PENDING (resize_container))
+ {
+ GTK_PRIVATE_SET_FLAG (resize_container, GTK_RESIZE_PENDING);
+ if (container_resize_queue == NULL)
+ gtk_idle_add_priority (GTK_PRIORITY_RESIZE,
+ gtk_container_idle_sizer,
+ NULL);
+ container_resize_queue = g_slist_prepend (container_resize_queue, resize_container);
+ }
+
+ GTK_PRIVATE_SET_FLAG (container, GTK_RESIZE_NEEDED);
+ resize_container->resize_widgets =
+ g_slist_prepend (resize_container->resize_widgets, container);
+ break;
+
+ case GTK_RESIZE_IMMEDIATE:
+ GTK_PRIVATE_SET_FLAG (container, GTK_RESIZE_NEEDED);
+ resize_container->resize_widgets =
+ g_slist_prepend (resize_container->resize_widgets, container);
+ gtk_container_check_resize (resize_container);
+ break;
+
+ case GTK_RESIZE_PARENT:
+ /* Ignore, should not be reached */
+ break;
+ }
+ }
+ else
+ {
+ /* we need to let hidden resize containers know that something
+ * changed while they where hidden (currently only evaluated by
+ * toplevels).
+ */
+ resize_container->need_resize = TRUE;
+ }
+ }
}
void
-gtk_container_unblock_resize (GtkContainer *container)
+gtk_container_check_resize (GtkContainer *container)
{
g_return_if_fail (container != NULL);
g_return_if_fail (GTK_IS_CONTAINER (container));
- container->block_resize = FALSE;
+ gtk_signal_emit (GTK_OBJECT (container), container_signals[CHECK_RESIZE]);
}
-gint
-gtk_container_need_resize (GtkContainer *container)
+static void
+gtk_container_real_check_resize (GtkContainer *container)
{
- gint return_val;
+ GtkWidget *widget;
+ GtkRequisition requisition;
- g_return_val_if_fail (container != NULL, FALSE);
- g_return_val_if_fail (GTK_IS_CONTAINER (container), FALSE);
+ g_return_if_fail (container != NULL);
+ g_return_if_fail (GTK_IS_CONTAINER (container));
- return_val = FALSE;
+ widget = GTK_WIDGET (container);
- if (!container->block_resize)
+ gtk_widget_size_request (widget, &requisition);
+
+ if (requisition.width > widget->allocation.width ||
+ requisition.height > widget->allocation.height)
{
- if (container->auto_resize)
- gtk_signal_emit (GTK_OBJECT (container),
- container_signals[NEED_RESIZE],
- &return_val);
+ if (GTK_IS_RESIZE_CONTAINER (container))
+ gtk_widget_size_allocate (GTK_WIDGET (container),
+ >K_WIDGET (container)->allocation);
else
- container->need_resize = TRUE;
+ gtk_widget_queue_resize (widget);
}
+ else
+ {
+ gtk_container_resize_children (container);
+ }
+}
+
+/* The container hasn't changed size but one of its children
+ * queued a resize request. Which means that the allocation
+ * is not sufficient for the requisition of some child.
+ * We've already performed a size request at this point,
+ * so we simply need to run through the list of resize
+ * widgets and reallocate their sizes appropriately. We
+ * make the optimization of not performing reallocation
+ * for a widget who also has a parent in the resize widgets
+ * list. GTK_RESIZE_NEEDED is used for flagging those
+ * parents inside this function.
+ */
+void
+gtk_container_resize_children (GtkContainer *container)
+{
+ GtkWidget *widget;
+ GtkWidget *resize_container;
+ GSList *resize_widgets;
+ GSList *resize_containers;
+ GSList *node;
- return return_val;
+ /* resizing invariants:
+ * toplevels have *always* resize_mode != GTK_RESIZE_PARENT set.
+ * containers with resize_mode==GTK_RESIZE_PARENT have to have resize_widgets
+ * set to NULL.
+ * containers that are flagged RESIZE_NEEDED must have resize_widgets set to
+ * NULL, or are toplevels (thus have ->parent set to NULL).
+ * widgets that are in some container->resize_widgets list must be flagged with
+ * RESIZE_NEEDED.
+ * widgets that have RESIZE_NEEDED set must be referenced in some
+ * GTK_IS_RESIZE_CONTAINER (container)->resize_widgets list.
+ * containers that have an idle sizer pending must be flagged with
+ * RESIZE_PENDING.
+ */
+
+ g_return_if_fail (container != NULL);
+ g_return_if_fail (GTK_IS_CONTAINER (container));
+
+ /* we first check out if we actually need to perform a resize,
+ * which is not the case if we got another container queued for
+ * a resize in our anchestry. also we can skip the whole
+ * resize_widgets checks if we are a toplevel and NEED_RESIZE.
+ * this code assumes that our allocation is sufficient for our
+ * requisition, since otherwise we would NEED_RESIZE.
+ */
+ resize_container = GTK_WIDGET (container);
+ while (resize_container)
+ {
+ if (GTK_WIDGET_RESIZE_NEEDED (resize_container))
+ break;
+ resize_container = resize_container->parent;
+ }
+ if (resize_container)
+ {
+ /* queue_resize and size_allocate both clear our
+ * resize_widgets list.
+ */
+ if (resize_container->parent)
+ gtk_container_queue_resize (container);
+ else
+ gtk_widget_size_allocate (GTK_WIDGET (container),
+ >K_WIDGET (container)->allocation);
+ return;
+ }
+
+ resize_container = GTK_WIDGET (container);
+
+ /* we now walk the anchestry for all resize widgets as long
+ * as they are our children and as long as their allocation
+ * is insufficient, since we don't need to reallocate below that.
+ */
+ resize_widgets = container->resize_widgets;
+ container->resize_widgets = NULL;
+ for (node = resize_widgets; node; node = node->next)
+ {
+ widget = node->data;
+
+ GTK_PRIVATE_UNSET_FLAG (widget, GTK_RESIZE_NEEDED);
+
+ while (widget->parent != resize_container &&
+ ((widget->allocation.width < widget->requisition.width) ||
+ (widget->allocation.height < widget->requisition.height)))
+ widget = widget->parent;
+
+ GTK_PRIVATE_SET_FLAG (widget, GTK_RESIZE_NEEDED);
+ node->data = widget;
+ }
+
+ /* for the newly setup resize_widgets list, we now walk each widget's
+ * anchestry to sort those widgets out that have RESIZE_NEEDED parents.
+ * we can safely stop the walk if we are the parent, since we checked
+ * our own anchestry already.
+ */
+ resize_containers = NULL;
+ for (node = resize_widgets; node; node = node->next)
+ {
+ GtkWidget *parent;
+
+ widget = node->data;
+
+ if (!GTK_WIDGET_RESIZE_NEEDED (widget))
+ continue;
+
+ parent = widget->parent;
+
+ while (parent != resize_container)
+ {
+ if (GTK_WIDGET_RESIZE_NEEDED (parent))
+ {
+ GTK_PRIVATE_UNSET_FLAG (widget, GTK_RESIZE_NEEDED);
+ widget = parent;
+ }
+ parent = parent->parent;
+ }
+
+ if (!g_slist_find (resize_containers, widget))
+ {
+ resize_containers = g_slist_prepend (resize_containers, widget);
+ gtk_widget_ref (widget);
+ }
+ }
+ g_slist_free (resize_widgets);
+
+ for (node = resize_containers; node; node = node->next)
+ {
+ widget = node->data;
+
+ GTK_PRIVATE_UNSET_FLAG (widget, GTK_RESIZE_NEEDED);
+
+ gtk_widget_size_allocate (widget, &widget->allocation);
+
+ gtk_widget_unref (widget);
+ }
+ g_slist_free (resize_containers);
}
+/**
+ * gtk_container_forall:
+ * @container: a #GtkContainer
+ * @callback: a callback
+ * @callback_data: callback user data
+ *
+ * Invokes @callback on each child of @container, including children
+ * that are considered "internal" (implementation details of the
+ * container). "Internal" children generally weren't added by the user
+ * of the container, but were added by the container implementation
+ * itself. Most applications should use gtk_container_foreach(),
+ * rather than gtk_container_forall().
+ **/
+void
+gtk_container_forall (GtkContainer *container,
+ GtkCallback callback,
+ gpointer callback_data)
+{
+ GtkContainerClass *class;
+
+ g_return_if_fail (container != NULL);
+ g_return_if_fail (GTK_IS_CONTAINER (container));
+ g_return_if_fail (callback != NULL);
+
+ class = GTK_CONTAINER_GET_CLASS (container);
+
+ if (class->forall)
+ class->forall (container, TRUE, callback, callback_data);
+}
+
+/**
+ * gtk_container_foreach:
+ * @container: a #GtkContainer
+ * @callback: a callback
+ * @callback_data: callback user data
+ *
+ * Invokes @callback on each non-internal child of @container. See
+ * gtk_container_forall() for details on what constitutes an
+ * "internal" child. Most applications should use
+ * gtk_container_foreach(), rather than gtk_container_forall().
+ **/
void
gtk_container_foreach (GtkContainer *container,
GtkCallback callback,
gpointer callback_data)
{
- gtk_signal_emit (GTK_OBJECT (container),
- container_signals[FOREACH],
- callback, callback_data);
+ GtkContainerClass *class;
+
+ g_return_if_fail (container != NULL);
+ g_return_if_fail (GTK_IS_CONTAINER (container));
+ g_return_if_fail (callback != NULL);
+
+ class = GTK_CONTAINER_GET_CLASS (container);
+
+ if (class->forall)
+ class->forall (container, FALSE, callback, callback_data);
}
typedef struct _GtkForeachData GtkForeachData;
/* first argument */
args[0].name = NULL;
- args[0].type = GTK_OBJECT(child)->klass->type;
- GTK_VALUE_OBJECT(args[0]) = GTK_OBJECT (child);
+ args[0].type = GTK_OBJECT_TYPE (child);
+ GTK_VALUE_OBJECT (args[0]) = GTK_OBJECT (child);
/* location for return value */
args[1].name = NULL;
fdata->callback (fdata->container, fdata->callback_data, 1, args);
}
-void
-gtk_container_foreach_interp (GtkContainer *container,
- GtkCallbackMarshal marshal,
- gpointer callback_data,
- GtkDestroyNotify notify)
-{
- gtk_container_foreach_full (container, NULL, marshal,
- callback_data, notify);
-}
-
void
gtk_container_foreach_full (GtkContainer *container,
GtkCallback callback,
gpointer callback_data,
GtkDestroyNotify notify)
{
+ g_return_if_fail (container != NULL);
+ g_return_if_fail (GTK_IS_CONTAINER (container));
+
if (marshal)
{
GtkForeachData fdata;
gtk_container_foreach (container, gtk_container_foreach_unmarshal, &fdata);
}
else
- gtk_container_foreach (container, callback, &callback_data);
-
- notify (callback_data);
+ {
+ g_return_if_fail (callback != NULL);
+
+ gtk_container_foreach (container, callback, &callback_data);
+ }
+
+ if (notify)
+ notify (callback_data);
}
-gint
+gboolean
gtk_container_focus (GtkContainer *container,
GtkDirectionType direction)
{
gint return_val;
+
+ g_return_val_if_fail (container != NULL, FALSE);
+ g_return_val_if_fail (GTK_IS_CONTAINER (container), FALSE);
gtk_signal_emit (GTK_OBJECT (container),
container_signals[FOCUS],
return return_val;
}
+void
+gtk_container_set_focus_child (GtkContainer *container,
+ GtkWidget *widget)
+{
+ g_return_if_fail (container != NULL);
+ g_return_if_fail (GTK_IS_CONTAINER (container));
+ if (widget)
+ g_return_if_fail (GTK_IS_WIDGET (widget));
+
+ gtk_signal_emit (GTK_OBJECT (container), container_signals[SET_FOCUS_CHILD], widget);
+}
+
GList*
gtk_container_children (GtkContainer *container)
{
return g_list_reverse (children);
}
-void
-gtk_container_register_toplevel (GtkContainer *container)
-{
- gtk_widget_ref (GTK_WIDGET (container));
- gtk_object_sink (GTK_OBJECT (container));
-}
-
-void
-gtk_container_unregister_toplevel (GtkContainer *container)
-{
- gtk_widget_unref (GTK_WIDGET (container));
-}
-
static void
-gtk_container_marshal_signal_1 (GtkObject *object,
- GtkSignalFunc func,
- gpointer func_data,
- GtkArg *args)
+gtk_container_child_position_callback (GtkWidget *widget,
+ gpointer client_data)
{
- GtkContainerSignal1 rfunc;
-
- rfunc = (GtkContainerSignal1) func;
-
- (* rfunc) (object, GTK_VALUE_OBJECT (args[0]), func_data);
+ struct {
+ GtkWidget *child;
+ guint i;
+ guint index;
+ } *data = client_data;
+
+ data->i++;
+ if (data->child == widget)
+ data->index = data->i;
}
-static void
-gtk_container_marshal_signal_2 (GtkObject *object,
- GtkSignalFunc func,
- gpointer func_data,
- GtkArg *args)
+static gchar*
+gtk_container_child_default_composite_name (GtkContainer *container,
+ GtkWidget *child)
{
- GtkContainerSignal2 rfunc;
-
- rfunc = (GtkContainerSignal2) func;
+ struct {
+ GtkWidget *child;
+ guint i;
+ guint index;
+ } data;
+ gchar *name;
+
+ /* fallback implementation */
+ data.child = child;
+ data.i = 0;
+ data.index = 0;
+ gtk_container_forall (container,
+ gtk_container_child_position_callback,
+ &data);
+
+ name = g_strdup_printf ("%s-%u",
+ gtk_type_name (GTK_OBJECT_TYPE (child)),
+ data.index);
- (* rfunc) (object,
- GTK_VALUE_C_CALLBACK(args[0]).func,
- GTK_VALUE_C_CALLBACK(args[0]).func_data,
- func_data);
+ return name;
}
-static void
-gtk_container_marshal_signal_3 (GtkObject *object,
- GtkSignalFunc func,
- gpointer func_data,
- GtkArg *args)
+gchar*
+gtk_container_child_composite_name (GtkContainer *container,
+ GtkWidget *child)
{
- GtkContainerSignal3 rfunc;
- gint *return_val;
+ g_return_val_if_fail (container != NULL, NULL);
+ g_return_val_if_fail (GTK_IS_CONTAINER (container), NULL);
+ g_return_val_if_fail (child != NULL, NULL);
+ g_return_val_if_fail (GTK_IS_WIDGET (child), NULL);
+ g_return_val_if_fail (child->parent == GTK_WIDGET (container), NULL);
- rfunc = (GtkContainerSignal3) func;
- return_val = GTK_RETLOC_ENUM (args[1]);
+ if (GTK_WIDGET_COMPOSITE_CHILD (child))
+ {
+ static GQuark quark_composite_name = 0;
+ gchar *name;
- *return_val = (* rfunc) (object, GTK_VALUE_ENUM(args[0]), func_data);
-}
+ if (!quark_composite_name)
+ quark_composite_name = g_quark_from_static_string ("gtk-composite-name");
-static void
-gtk_container_marshal_signal_4 (GtkObject *object,
- GtkSignalFunc func,
- gpointer func_data,
- GtkArg *args)
-{
- GtkContainerSignal4 rfunc;
- gint *return_val;
+ name = gtk_object_get_data_by_id (GTK_OBJECT (child), quark_composite_name);
+ if (!name)
+ {
+ GtkContainerClass *class;
- rfunc = (GtkContainerSignal4) func;
- return_val = GTK_RETLOC_BOOL (args[0]);
+ class = GTK_CONTAINER_GET_CLASS (container);
+ if (class->composite_name)
+ name = class->composite_name (container, child);
+ }
+ else
+ name = g_strdup (name);
- *return_val = (* rfunc) (object, func_data);
+ return name;
+ }
+
+ return NULL;
}
-static gint
-gtk_real_container_need_resize (GtkContainer *container)
+void
+gtk_container_real_set_focus_child (GtkContainer *container,
+ GtkWidget *child)
{
- g_return_val_if_fail (container != NULL, FALSE);
- g_return_val_if_fail (GTK_IS_CONTAINER (container), FALSE);
+ g_return_if_fail (container != NULL);
+ g_return_if_fail (GTK_IS_CONTAINER (container));
+ if (child)
+ g_return_if_fail (GTK_IS_WIDGET (child));
- if (GTK_WIDGET_VISIBLE (container) && container->widget.parent)
- return gtk_container_need_resize (GTK_CONTAINER (container->widget.parent));
+ if (child != container->focus_child)
+ {
+ if (container->focus_child)
+ gtk_widget_unref (container->focus_child);
+ container->focus_child = child;
+ if (container->focus_child)
+ gtk_widget_ref (container->focus_child);
+ }
- return FALSE;
+
+ /* check for h/v adjustments
+ */
+ if (container->focus_child)
+ {
+ GtkAdjustment *adjustment;
+
+ adjustment = gtk_object_get_data_by_id (GTK_OBJECT (container), vadjustment_key_id);
+ if (adjustment)
+ gtk_adjustment_clamp_page (adjustment,
+ container->focus_child->allocation.y,
+ (container->focus_child->allocation.y +
+ container->focus_child->allocation.height));
+
+ adjustment = gtk_object_get_data_by_id (GTK_OBJECT (container), hadjustment_key_id);
+ if (adjustment)
+ gtk_adjustment_clamp_page (adjustment,
+ container->focus_child->allocation.x,
+ (container->focus_child->allocation.x +
+ container->focus_child->allocation.width));
+ }
}
-static gint
-gtk_real_container_focus (GtkContainer *container,
+static gboolean
+gtk_container_real_focus (GtkContainer *container,
GtkDirectionType direction)
{
GList *children;
g_return_val_if_fail (container != NULL, FALSE);
g_return_val_if_fail (GTK_IS_CONTAINER (container), FALSE);
- /* Fail if the container is insensitive
+ /* Fail if the container is inappropriate for focus movement
*/
- if (!GTK_WIDGET_SENSITIVE (container))
+ if (!GTK_WIDGET_DRAWABLE (container) ||
+ !GTK_WIDGET_IS_SENSITIVE (container))
return FALSE;
return_val = FALSE;
if (GTK_WIDGET_CAN_FOCUS (container))
{
- gtk_widget_grab_focus (GTK_WIDGET (container));
- return_val = TRUE;
+ if (!GTK_WIDGET_HAS_FOCUS (container))
+ {
+ gtk_widget_grab_focus (GTK_WIDGET (container));
+ return_val = TRUE;
+ }
}
else
{
/* Get a list of the containers children
*/
- children = gtk_container_children (container);
+ children = NULL;
+ gtk_container_forall (container,
+ gtk_container_children_callback,
+ &children);
+ children = g_list_reverse (children);
+ /* children = gtk_container_children (container); */
if (children)
{
- /* Remove any children which are insensitive
+ /* Remove any children which are inappropriate for focus movement
*/
tmp_list = children;
while (tmp_list)
{
- if (!GTK_WIDGET_SENSITIVE (tmp_list->data))
+ if (GTK_WIDGET_IS_SENSITIVE (tmp_list->data) &&
+ GTK_WIDGET_DRAWABLE (tmp_list->data) &&
+ (GTK_IS_CONTAINER (tmp_list->data) || GTK_WIDGET_CAN_FOCUS (tmp_list->data)))
+ tmp_list = tmp_list->next;
+ else
{
tmp_list2 = tmp_list;
tmp_list = tmp_list->next;
-
+
children = g_list_remove_link (children, tmp_list2);
g_list_free_1 (tmp_list2);
}
- else
- tmp_list = tmp_list->next;
}
switch (direction)
break;
case GTK_DIR_UP:
case GTK_DIR_DOWN:
- return_val = gtk_container_focus_up_down (container, children, direction);
+ return_val = gtk_container_focus_up_down (container, &children, direction);
break;
case GTK_DIR_LEFT:
case GTK_DIR_RIGHT:
- return_val = gtk_container_focus_left_right (container, children, direction);
+ return_val = gtk_container_focus_left_right (container, &children, direction);
break;
}
return return_val;
}
-static gint
+static gboolean
gtk_container_focus_tab (GtkContainer *container,
GList *children,
GtkDirectionType direction)
GtkWidget *child;
GtkWidget *child2;
GList *tmp_list;
- gint length;
- gint i, j;
+ guint length;
+ guint i, j;
length = g_list_length (children);
{
child2 = tmp_list->prev->data;
if ((child->allocation.x < child2->allocation.x) &&
- (child->allocation.y >= child2->allocation.y))
+ (child->allocation.y == child2->allocation.y))
{
tmp_list->data = tmp_list->prev->data;
tmp_list = tmp_list->prev;
return gtk_container_focus_move (container, children, direction);
}
-static gint
-gtk_container_focus_up_down (GtkContainer *container,
- GList *children,
- GtkDirectionType direction)
+static gboolean
+old_focus_coords (GtkContainer *container, GdkRectangle *old_focus_rect)
{
- GtkWidget *child;
- GtkWidget *child2;
- GList *tmp_list;
- gint dist1, dist2;
- gint focus_x;
- gint focus_width;
- gint length;
- gint i, j;
-
- /* return failure if there isn't a focus child */
- if (container->focus_child)
+ GtkWidget *widget = GTK_WIDGET (container);
+ GtkWidget *toplevel = gtk_widget_get_toplevel (widget);
+
+ if (toplevel &&
+ GTK_IS_WINDOW (toplevel) && GTK_WINDOW (toplevel)->focus_widget &&
+ GTK_WIDGET_REALIZED (container) &&
+ GTK_WIDGET_REALIZED (GTK_WINDOW (toplevel)->focus_widget))
{
- focus_width = container->focus_child->allocation.width / 2;
- focus_x = container->focus_child->allocation.x + focus_width;
+ GtkWidget *old_focus = GTK_WINDOW (toplevel)->focus_widget;
+ GdkWindow *old_parent_window = old_focus->parent ? old_focus->parent->window : old_focus->window;
+ GdkWindow *new_parent_window = widget->window;
+ GdkWindow *toplevel_window = toplevel->window;
+
+ *old_focus_rect = old_focus->allocation;
+
+ /* Translate coordinates to the toplevel */
+
+ while (old_parent_window != toplevel_window)
+ {
+ gint dx, dy;
+
+ gdk_window_get_position (old_parent_window, &dx, &dy);
+
+ old_focus_rect->x += dx;
+ old_focus_rect->y += dy;
+
+ old_parent_window = gdk_window_get_parent (old_parent_window);
+ }
+
+ /* Translate coordinates back to the new container */
+
+ while (new_parent_window != toplevel_window)
+ {
+ gint dx, dy;
+
+ gdk_window_get_position (new_parent_window, &dx, &dy);
+
+ old_focus_rect->x -= dx;
+ old_focus_rect->y -= dy;
+
+ new_parent_window = gdk_window_get_parent (new_parent_window);
+ }
+
+ return TRUE;
}
- else
+
+ return FALSE;
+}
+
+typedef struct _CompareInfo CompareInfo;
+
+struct _CompareInfo
+{
+ gint x;
+ gint y;
+};
+
+static gint
+up_down_compare (gconstpointer a,
+ gconstpointer b,
+ gpointer data)
+{
+ const GtkWidget *child1 = a;
+ const GtkWidget *child2 = b;
+ CompareInfo *compare = data;
+
+ gint y1 = child1->allocation.y + child1->allocation.height / 2;
+ gint y2 = child2->allocation.y + child2->allocation.height / 2;
+
+ if (y1 == y2)
{
- focus_width = GTK_WIDGET (container)->allocation.width;
- if (GTK_WIDGET_NO_WINDOW (container))
- focus_x = GTK_WIDGET (container)->allocation.x;
+ gint x1 = abs (child1->allocation.x + child1->allocation.width / 2 - compare->x);
+ gint x2 = abs (child2->allocation.x + child2->allocation.width / 2 - compare->x);
+
+ if (compare->y < y1)
+ return (x1 < x2) ? -1 : ((x1 == x2) ? 0 : 1);
else
- focus_x = 0;
+ return (x1 < x2) ? 1 : ((x1 == x2) ? 0 : -1);
}
+ else
+ return (y1 < y2) ? -1 : 1;
+}
- length = g_list_length (children);
+static gboolean
+gtk_container_focus_up_down (GtkContainer *container,
+ GList **children,
+ GtkDirectionType direction)
+{
+ CompareInfo compare;
+ GList *tmp_list;
- /* sort the children in the y direction */
- for (i = 1; i < length; i++)
+ if (container->focus_child)
{
- j = i;
- tmp_list = g_list_nth (children, j);
- child = tmp_list->data;
+ gint compare_x1;
+ gint compare_x2;
+ gint compare_y;
+
+ /* Delete widgets from list that don't match minimum criteria */
- while (j > 0)
+ compare_x1 = container->focus_child->allocation.x;
+ compare_x2 = container->focus_child->allocation.x + container->focus_child->allocation.width;
+
+ if (direction == GTK_DIR_UP)
+ compare_y = container->focus_child->allocation.y;
+ else
+ compare_y = container->focus_child->allocation.y + container->focus_child->allocation.height;
+
+ tmp_list = *children;
+ while (tmp_list)
{
- child2 = tmp_list->prev->data;
- if (child->allocation.y < child2->allocation.y)
+ GtkWidget *child = tmp_list->data;
+ GList *next = tmp_list->next;
+ gint child_x1, child_x2;
+
+ if (child != container->focus_child)
{
- tmp_list->data = tmp_list->prev->data;
- tmp_list = tmp_list->prev;
- j--;
+ child_x1 = child->allocation.x;
+ child_x2 = child->allocation.x + child->allocation.width;
+
+ if ((child_x2 <= compare_x1 || child_x1 >= compare_x2) /* No horizontal overlap */ ||
+ (direction == GTK_DIR_DOWN && child->allocation.y + child->allocation.height < compare_y) || /* Not below */
+ (direction == GTK_DIR_UP && child->allocation.y > compare_y)) /* Not above */
+ {
+ *children = g_list_delete_link (*children, tmp_list);
+ }
}
- else
- break;
+
+ tmp_list = next;
}
- tmp_list->data = child;
+ compare.x = (compare_x1 + compare_x2) / 2;
+ compare.y = container->focus_child->allocation.y + container->focus_child->allocation.height / 2;
}
-
- /* sort the children in distance in the x direction
- * in distance from the current focus child while maintaining the
- * sort in the y direction
- */
- for (i = 1; i < length; i++)
+ else
{
- j = i;
- tmp_list = g_list_nth (children, j);
- child = tmp_list->data;
- dist1 = (child->allocation.x + child->allocation.width / 2) - focus_x;
+ /* No old focus widget, need to figure out starting x,y some other way
+ */
+ GtkWidget *widget = GTK_WIDGET (container);
+ GdkRectangle old_focus_rect;
- while (j > 0)
+ if (old_focus_coords (container, &old_focus_rect))
{
- child2 = tmp_list->prev->data;
- dist2 = (child2->allocation.x + child2->allocation.width / 2) - focus_x;
-
- if ((dist1 < dist2) &&
- (child->allocation.y >= child2->allocation.y))
- {
- tmp_list->data = tmp_list->prev->data;
- tmp_list = tmp_list->prev;
- j--;
- }
+ 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;
else
- break;
+ compare.x = widget->allocation.width / 2;
}
-
- tmp_list->data = child;
+
+ if (GTK_WIDGET_NO_WINDOW (widget))
+ compare.y = (direction == GTK_DIR_DOWN) ? widget->allocation.y : widget->allocation.y + widget->allocation.height;
+ else
+ compare.y = (direction == GTK_DIR_DOWN) ? 0 : + widget->allocation.height;
}
- /* go and invalidate any widget which is too
- * far from the focus widget.
- */
- if (!container->focus_child &&
- (direction == GTK_DIR_UP))
- focus_x += focus_width;
+ *children = g_list_sort_with_data (*children, up_down_compare, &compare);
- tmp_list = children;
- while (tmp_list)
- {
- child = tmp_list->data;
+ if (direction == GTK_DIR_UP)
+ *children = g_list_reverse (*children);
- dist1 = (child->allocation.x + child->allocation.width / 2) - focus_x;
- if (((direction == GTK_DIR_DOWN) && (dist1 < 0)) ||
- ((direction == GTK_DIR_UP) && (dist1 > 0)))
- tmp_list->data = NULL;
+ return gtk_container_focus_move (container, *children, direction);
+}
- tmp_list = tmp_list->next;
- }
+static gint
+left_right_compare (gconstpointer a,
+ gconstpointer b,
+ gpointer data)
+{
+ const GtkWidget *child1 = a;
+ const GtkWidget *child2 = b;
+ CompareInfo *compare = data;
- if (direction == GTK_DIR_UP)
- children = g_list_reverse (children);
+ gint x1 = child1->allocation.x + child1->allocation.width / 2;
+ gint x2 = child2->allocation.x + child2->allocation.width / 2;
- return gtk_container_focus_move (container, children, direction);
+ if (x1 == x2)
+ {
+ gint y1 = abs (child1->allocation.y + child1->allocation.height / 2 - compare->y);
+ gint y2 = abs (child2->allocation.y + child2->allocation.height / 2 - compare->y);
+
+ if (compare->x < x1)
+ return (y1 < y2) ? -1 : ((y1 == y2) ? 0 : 1);
+ else
+ return (y1 < y2) ? 1 : ((y1 == y2) ? 0 : -1);
+ }
+ else
+ return (x1 < x2) ? -1 : 1;
}
-static gint
+static gboolean
gtk_container_focus_left_right (GtkContainer *container,
- GList *children,
+ GList **children,
GtkDirectionType direction)
{
- GtkWidget *child;
- GtkWidget *child2;
+ CompareInfo compare;
GList *tmp_list;
- gint dist1, dist2;
- gint focus_y;
- gint focus_height;
- gint length;
- gint i, j;
- /* return failure if there isn't a focus child */
if (container->focus_child)
{
- focus_height = container->focus_child->allocation.height / 2;
- focus_y = container->focus_child->allocation.y + focus_height;
- }
- else
- {
- focus_height = GTK_WIDGET (container)->allocation.height;
- if (GTK_WIDGET_NO_WINDOW (container))
- focus_y = GTK_WIDGET (container)->allocation.y;
- else
- focus_y = 0;
- }
-
- length = g_list_length (children);
+ gint compare_y1;
+ gint compare_y2;
+ gint compare_x;
+
+ /* Delete widgets from list that don't match minimum criteria */
- /* sort the children in the x direction */
- for (i = 1; i < length; i++)
- {
- j = i;
- tmp_list = g_list_nth (children, j);
- child = tmp_list->data;
+ compare_y1 = container->focus_child->allocation.y;
+ compare_y2 = container->focus_child->allocation.y + container->focus_child->allocation.height;
- while (j > 0)
+ if (direction == GTK_DIR_LEFT)
+ compare_x = container->focus_child->allocation.x;
+ else
+ compare_x = container->focus_child->allocation.x + container->focus_child->allocation.width;
+
+ tmp_list = *children;
+ while (tmp_list)
{
- child2 = tmp_list->prev->data;
- if (child->allocation.x < child2->allocation.x)
+ GtkWidget *child = tmp_list->data;
+ GList *next = tmp_list->next;
+ gint child_y1, child_y2;
+
+ if (child != container->focus_child)
{
- tmp_list->data = tmp_list->prev->data;
- tmp_list = tmp_list->prev;
- j--;
+ child_y1 = child->allocation.y;
+ child_y2 = child->allocation.y + child->allocation.height;
+
+ if ((child_y2 <= compare_y1 || child_y1 >= compare_y2) /* No vertical overlap */ ||
+ (direction == GTK_DIR_RIGHT && child->allocation.x + child->allocation.width < compare_x) || /* Not to left */
+ (direction == GTK_DIR_LEFT && child->allocation.x > compare_x)) /* Not to right */
+ {
+ *children = g_list_delete_link (*children, tmp_list);
+ }
}
- else
- break;
+
+ tmp_list = next;
}
- tmp_list->data = child;
+ compare.y = (compare_y1 + compare_y2) / 2;
+ compare.x = container->focus_child->allocation.x + container->focus_child->allocation.width / 2;
}
-
- /* sort the children in distance in the y direction
- * in distance from the current focus child while maintaining the
- * sort in the x direction
- */
- for (i = 1; i < length; i++)
+ else
{
- j = i;
- tmp_list = g_list_nth (children, j);
- child = tmp_list->data;
- dist1 = (child->allocation.y + child->allocation.height / 2) - focus_y;
+ /* No old focus widget, need to figure out starting x,y some other way
+ */
+ GtkWidget *widget = GTK_WIDGET (container);
+ GdkRectangle old_focus_rect;
- while (j > 0)
+ if (old_focus_coords (container, &old_focus_rect))
{
- child2 = tmp_list->prev->data;
- dist2 = (child2->allocation.y + child2->allocation.height / 2) - focus_y;
-
- if ((dist1 < dist2) &&
- (child->allocation.x >= child2->allocation.x))
- {
- tmp_list->data = tmp_list->prev->data;
- tmp_list = tmp_list->prev;
- j--;
- }
+ 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;
else
- break;
+ compare.y = widget->allocation.height / 2;
}
-
- tmp_list->data = child;
+
+ if (GTK_WIDGET_NO_WINDOW (widget))
+ compare.x = (direction == GTK_DIR_RIGHT) ? widget->allocation.x : widget->allocation.x + widget->allocation.width;
+ else
+ compare.x = (direction == GTK_DIR_RIGHT) ? 0 : widget->allocation.width;
}
- /* go and invalidate any widget which is too
- * far from the focus widget.
- */
- if (!container->focus_child &&
- (direction == GTK_DIR_LEFT))
- focus_y += focus_height;
-
- tmp_list = children;
- while (tmp_list)
- {
- child = tmp_list->data;
-
- dist1 = (child->allocation.y + child->allocation.height / 2) - focus_y;
- if (((direction == GTK_DIR_RIGHT) && (dist1 < 0)) ||
- ((direction == GTK_DIR_LEFT) && (dist1 > 0)))
- tmp_list->data = NULL;
-
- tmp_list = tmp_list->next;
- }
+ *children = g_list_sort_with_data (*children, left_right_compare, &compare);
if (direction == GTK_DIR_LEFT)
- children = g_list_reverse (children);
+ *children = g_list_reverse (*children);
- return gtk_container_focus_move (container, children, direction);
+ return gtk_container_focus_move (container, *children, direction);
}
-static gint
+static gboolean
gtk_container_focus_move (GtkContainer *container,
GList *children,
GtkDirectionType direction)
GtkWidget *child;
focus_child = container->focus_child;
- container->focus_child = NULL;
while (children)
{
{
focus_child = NULL;
- if (GTK_WIDGET_VISIBLE (child) &&
- GTK_IS_CONTAINER (child) &&
- !GTK_WIDGET_HAS_FOCUS (child))
+ if (GTK_WIDGET_DRAWABLE (child) &&
+ GTK_IS_CONTAINER (child))
if (gtk_container_focus (GTK_CONTAINER (child), direction))
return TRUE;
}
}
- else if (GTK_WIDGET_VISIBLE (child))
+ else if (GTK_WIDGET_DRAWABLE (child))
{
- if (GTK_WIDGET_CAN_FOCUS (child))
- {
- gtk_widget_grab_focus (child);
- return TRUE;
- }
- else if (GTK_IS_CONTAINER (child))
+ if (GTK_IS_CONTAINER (child))
{
if (gtk_container_focus (GTK_CONTAINER (child), direction))
return TRUE;
}
+ else if (GTK_WIDGET_CAN_FOCUS (child))
+ {
+ gtk_widget_grab_focus (child);
+ return TRUE;
+ }
}
}
*children = g_list_prepend (*children, widget);
}
+void
+gtk_container_set_focus_vadjustment (GtkContainer *container,
+ GtkAdjustment *adjustment)
+{
+ g_return_if_fail (container != NULL);
+ g_return_if_fail (GTK_IS_CONTAINER (container));
+ if (adjustment)
+ g_return_if_fail (GTK_IS_ADJUSTMENT (adjustment));
+
+ if (adjustment)
+ gtk_object_ref (GTK_OBJECT(adjustment));
+
+ gtk_object_set_data_by_id_full (GTK_OBJECT (container),
+ vadjustment_key_id,
+ adjustment,
+ (GtkDestroyNotify) gtk_object_unref);
+}
+
+void
+gtk_container_set_focus_hadjustment (GtkContainer *container,
+ GtkAdjustment *adjustment)
+{
+ g_return_if_fail (container != NULL);
+ g_return_if_fail (GTK_IS_CONTAINER (container));
+ if (adjustment)
+ g_return_if_fail (GTK_IS_ADJUSTMENT (adjustment));
+
+ if (adjustment)
+ gtk_object_ref (GTK_OBJECT (adjustment));
+
+ gtk_object_set_data_by_id_full (GTK_OBJECT (container),
+ hadjustment_key_id,
+ adjustment,
+ (GtkDestroyNotify) gtk_object_unref);
+}
+
+
static void
gtk_container_show_all (GtkWidget *widget)
{
- GtkContainer *container;
-
g_return_if_fail (widget != NULL);
g_return_if_fail (GTK_IS_CONTAINER (widget));
- container = GTK_CONTAINER (widget);
-
- /* First show children, then self.
- This makes sure that toplevel windows get shown as last widget.
- Otherwise the user would see the widgets get
- visible one after another.
- */
- gtk_container_foreach (container, (GtkCallback) gtk_widget_show_all, NULL);
+
+ gtk_container_foreach (GTK_CONTAINER (widget),
+ (GtkCallback) gtk_widget_show_all,
+ NULL);
gtk_widget_show (widget);
}
-
static void
gtk_container_hide_all (GtkWidget *widget)
{
- GtkContainer *container;
-
g_return_if_fail (widget != NULL);
g_return_if_fail (GTK_IS_CONTAINER (widget));
- container = GTK_CONTAINER (widget);
- /* First hide self, then children.
- This is the reverse order of gtk_container_show_all.
- */
- gtk_widget_hide (widget);
- gtk_container_foreach (container, (GtkCallback) gtk_widget_hide_all, NULL);
+ gtk_widget_hide (widget);
+ gtk_container_foreach (GTK_CONTAINER (widget),
+ (GtkCallback) gtk_widget_hide_all,
+ NULL);
+}
+
+
+static void
+gtk_container_expose_child (GtkWidget *child,
+ gpointer client_data)
+{
+ struct {
+ GtkWidget *container;
+ GdkEventExpose *event;
+ } *data = client_data;
+
+ gtk_container_propagate_expose (GTK_CONTAINER (data->container),
+ child,
+ data->event);
+}
+
+static gint
+gtk_container_expose (GtkWidget *widget,
+ GdkEventExpose *event)
+{
+ struct {
+ GtkWidget *container;
+ GdkEventExpose *event;
+ } data;
+
+ g_return_val_if_fail (widget != NULL, FALSE);
+ g_return_val_if_fail (GTK_IS_CONTAINER (widget), FALSE);
+ g_return_val_if_fail (event != NULL, FALSE);
+
+
+ if (GTK_WIDGET_DRAWABLE (widget))
+ {
+ data.container = widget;
+ data.event = event;
+
+ gtk_container_foreach (GTK_CONTAINER (widget),
+ gtk_container_expose_child,
+ &data);
+ }
+
+ return TRUE;
}
+
+/**
+ * gtk_container_propagate_expose:
+ * @container: a #GtkContainer
+ * @child: a child of @container
+ * @event: a expose event sent to container
+ *
+ * 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, gtk_container_propagate_expose()
+ * once for each child, passing in the event 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.
+ *
+ * In most cases, a container can simply either simply inherit the
+ * ::expose implementation from GtkContainer, or, do some drawing
+ * and then chain to the ::expose implementation from GtkContainer.
+ **/
+void
+gtk_container_propagate_expose (GtkContainer *container,
+ GtkWidget *child,
+ GdkEventExpose *event)
+{
+ GdkEventExpose child_event;
+
+ g_return_if_fail (GTK_IS_CONTAINER (container));
+ g_return_if_fail (GTK_IS_WIDGET (child));
+ g_return_if_fail (event != NULL);
+
+ g_assert (child->parent == GTK_WIDGET (container));
+
+ if (GTK_WIDGET_DRAWABLE (child) &&
+ GTK_WIDGET_NO_WINDOW (child) &&
+ (child->window == event->window))
+ {
+ child_event = *event;
+
+ child_event.region = gtk_widget_region_intersect (child, event->region);
+ if (!gdk_region_empty (child_event.region))
+ {
+ gdk_region_get_clipbox (child_event.region, &child_event.area);
+ gtk_widget_send_expose (child, (GdkEvent *)&child_event);
+ }
+ gdk_region_destroy (child_event.region);
+ }
+}
projects / ~andy / gtk / blobdiff