forked from AuroraMiddleware/gtk
50512ddcd2
Fri May 18 14:25:20 2001 Owen Taylor <otaylor@redhat.com> * gtk/gtkcontainer.c: Remove reallocate-redraws property. This is something that only a widget writer would ever want to change. * gtk/gtksignal.c: Handle G_SIGNAL_TYPE_STATIC_SCOPE for gtk_signal_emit_by_name(). * gtk/gtkviewport.c: Fix some warnings. * gtk/gtkwidget.c gtk/gtksizegroup.c: Add "size group" facility allowing the requisitions of multiple widgets to be grouped together. * tests/testgtk.c: Add GtkSizeGroup test * demos/gtk-demo/sizegroup.c: Add GtkSizeGroup demo. * demos/gtk-demo/main.c demos/gtk-demo/pixbufs.c: Fix some warnings. * configure.in: Switch to using AM_GLIB_GNU_GETTEXT.
2229 lines
62 KiB
C
2229 lines
62 KiB
C
/* GTK - The GIMP Toolkit
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* Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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/*
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* Modified by the GTK+ Team and others 1997-2000. See the AUTHORS
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* file for a list of people on the GTK+ Team. See the ChangeLog
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* files for a list of changes. These files are distributed with
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* GTK+ at ftp://ftp.gtk.org/pub/gtk/.
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*/
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#include <stdarg.h>
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#include <string.h>
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#include <stdlib.h>
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#include "gtkcontainer.h"
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#include "gtkprivate.h"
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#include "gtksignal.h"
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#include "gtkmain.h"
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#include "gtkwindow.h"
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#include "gtkintl.h"
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enum {
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ADD,
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REMOVE,
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CHECK_RESIZE,
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FOCUS,
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SET_FOCUS_CHILD,
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LAST_SIGNAL
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};
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enum {
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PROP_0,
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PROP_BORDER_WIDTH,
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PROP_RESIZE_MODE,
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PROP_CHILD,
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};
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typedef struct _GtkChildArgInfo GtkChildArgInfo;
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struct _GtkChildArgInfo
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{
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gchar *name;
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GtkType type;
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GtkType class_type;
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guint arg_flags;
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guint arg_id;
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guint seq_id;
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};
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static void gtk_container_base_class_init (GtkContainerClass *klass);
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static void gtk_container_class_init (GtkContainerClass *klass);
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static void gtk_container_init (GtkContainer *container);
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static void gtk_container_destroy (GtkObject *object);
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static void gtk_container_set_property (GObject *object,
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guint prop_id,
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const GValue *value,
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GParamSpec *pspec);
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static void gtk_container_get_property (GObject *object,
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guint prop_id,
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GValue *value,
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GParamSpec *pspec);
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static void gtk_container_add_unimplemented (GtkContainer *container,
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GtkWidget *widget);
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static void gtk_container_remove_unimplemented (GtkContainer *container,
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GtkWidget *widget);
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static void gtk_container_real_check_resize (GtkContainer *container);
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static gboolean gtk_container_real_focus (GtkContainer *container,
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GtkDirectionType direction);
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static void gtk_container_real_set_focus_child (GtkContainer *container,
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GtkWidget *widget);
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static gboolean gtk_container_focus_tab (GtkContainer *container,
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GList *children,
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GtkDirectionType direction);
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static gboolean gtk_container_focus_up_down (GtkContainer *container,
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GList **children,
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GtkDirectionType direction);
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static gboolean gtk_container_focus_left_right (GtkContainer *container,
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GList **children,
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GtkDirectionType direction);
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static gboolean gtk_container_focus_move (GtkContainer *container,
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GList *children,
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GtkDirectionType direction);
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static void gtk_container_children_callback (GtkWidget *widget,
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gpointer client_data);
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static void gtk_container_show_all (GtkWidget *widget);
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static void gtk_container_hide_all (GtkWidget *widget);
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static gint gtk_container_expose (GtkWidget *widget,
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GdkEventExpose *event);
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static gchar* gtk_container_child_default_composite_name (GtkContainer *container,
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GtkWidget *child);
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static guint container_signals[LAST_SIGNAL] = { 0 };
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static GHashTable *container_child_arg_info_ht = NULL;
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static GtkWidgetClass *parent_class = NULL;
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static const gchar *vadjustment_key = "gtk-vadjustment";
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static guint vadjustment_key_id = 0;
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static const gchar *hadjustment_key = "gtk-hadjustment";
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static guint hadjustment_key_id = 0;
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static GSList *container_resize_queue = NULL;
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GtkType
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gtk_container_get_type (void)
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{
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static GtkType container_type = 0;
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if (!container_type)
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{
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static const GtkTypeInfo container_info =
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{
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"GtkContainer",
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sizeof (GtkContainer),
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sizeof (GtkContainerClass),
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(GtkClassInitFunc) gtk_container_class_init,
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(GtkObjectInitFunc) gtk_container_init,
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/* reserved_1 */ NULL,
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/* reserved_2 */ NULL,
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(GtkClassInitFunc) gtk_container_base_class_init,
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};
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container_type = gtk_type_unique (gtk_widget_get_type (), &container_info);
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}
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return container_type;
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}
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static void
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gtk_container_base_class_init (GtkContainerClass *class)
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{
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/* reset instance specifc class fields that don't get inherited */
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class->n_child_args = 0;
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class->set_child_arg = NULL;
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class->get_child_arg = NULL;
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}
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static void
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gtk_container_class_init (GtkContainerClass *class)
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{
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GObjectClass *gobject_class;
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GtkObjectClass *object_class;
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GtkWidgetClass *widget_class;
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gobject_class = G_OBJECT_CLASS (class);
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object_class = (GtkObjectClass*) class;
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widget_class = (GtkWidgetClass*) class;
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parent_class = gtk_type_class (gtk_widget_get_type ());
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container_child_arg_info_ht = g_hash_table_new (gtk_arg_info_hash,
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gtk_arg_info_equal);
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vadjustment_key_id = g_quark_from_static_string (vadjustment_key);
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hadjustment_key_id = g_quark_from_static_string (hadjustment_key);
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gobject_class->set_property = gtk_container_set_property;
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gobject_class->get_property = gtk_container_get_property;
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g_object_class_install_property (gobject_class,
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PROP_RESIZE_MODE,
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g_param_spec_enum ("resize_mode",
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_("Resize mode"),
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_("Specify how resize events are handled"),
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GTK_TYPE_RESIZE_MODE,
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GTK_RESIZE_PARENT,
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G_PARAM_READWRITE));
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g_object_class_install_property (gobject_class,
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PROP_BORDER_WIDTH,
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g_param_spec_uint ("border_width",
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_("Border width"),
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_("The width of the empty border outside the containers children."),
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0,
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G_MAXINT,
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0,
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G_PARAM_READWRITE));
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g_object_class_install_property (gobject_class,
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PROP_CHILD,
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g_param_spec_object ("child",
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_("Child"),
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_("Can be used to add a new child to the container."),
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GTK_TYPE_WIDGET,
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G_PARAM_WRITABLE));
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object_class->destroy = gtk_container_destroy;
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widget_class->show_all = gtk_container_show_all;
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widget_class->hide_all = gtk_container_hide_all;
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widget_class->expose_event = gtk_container_expose;
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class->add = gtk_container_add_unimplemented;
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class->remove = gtk_container_remove_unimplemented;
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class->check_resize = gtk_container_real_check_resize;
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class->forall = NULL;
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class->focus = gtk_container_real_focus;
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class->set_focus_child = gtk_container_real_set_focus_child;
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class->child_type = NULL;
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class->composite_name = gtk_container_child_default_composite_name;
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container_signals[ADD] =
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gtk_signal_new ("add",
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GTK_RUN_FIRST,
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GTK_CLASS_TYPE (object_class),
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GTK_SIGNAL_OFFSET (GtkContainerClass, add),
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gtk_marshal_VOID__OBJECT,
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GTK_TYPE_NONE, 1,
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GTK_TYPE_WIDGET);
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container_signals[REMOVE] =
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gtk_signal_new ("remove",
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GTK_RUN_FIRST,
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GTK_CLASS_TYPE (object_class),
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GTK_SIGNAL_OFFSET (GtkContainerClass, remove),
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gtk_marshal_VOID__OBJECT,
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GTK_TYPE_NONE, 1,
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GTK_TYPE_WIDGET);
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container_signals[CHECK_RESIZE] =
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gtk_signal_new ("check_resize",
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GTK_RUN_LAST,
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GTK_CLASS_TYPE (object_class),
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GTK_SIGNAL_OFFSET (GtkContainerClass, check_resize),
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gtk_marshal_VOID__VOID,
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GTK_TYPE_NONE, 0);
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container_signals[FOCUS] =
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gtk_signal_new ("focus",
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GTK_RUN_LAST,
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GTK_CLASS_TYPE (object_class),
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GTK_SIGNAL_OFFSET (GtkContainerClass, focus),
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gtk_marshal_ENUM__ENUM,
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GTK_TYPE_DIRECTION_TYPE, 1,
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GTK_TYPE_DIRECTION_TYPE);
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container_signals[SET_FOCUS_CHILD] =
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gtk_signal_new ("set-focus-child",
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GTK_RUN_FIRST,
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GTK_CLASS_TYPE (object_class),
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GTK_SIGNAL_OFFSET (GtkContainerClass, set_focus_child),
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gtk_marshal_VOID__OBJECT,
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GTK_TYPE_NONE, 1,
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GTK_TYPE_WIDGET);
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}
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GtkType
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gtk_container_child_type (GtkContainer *container)
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{
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GtkType slot;
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GtkContainerClass *class;
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g_return_val_if_fail (container != NULL, 0);
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g_return_val_if_fail (GTK_IS_CONTAINER (container), 0);
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class = GTK_CONTAINER_GET_CLASS (container);
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if (class->child_type)
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slot = class->child_type (container);
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else
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slot = GTK_TYPE_NONE;
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return slot;
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}
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/****************************************************
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* GtkContainer child argument mechanism
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*
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****************************************************/
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void
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gtk_container_add_with_args (GtkContainer *container,
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GtkWidget *widget,
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const gchar *first_arg_name,
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...)
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{
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g_return_if_fail (container != NULL);
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g_return_if_fail (GTK_IS_CONTAINER (container));
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g_return_if_fail (widget != NULL);
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g_return_if_fail (GTK_IS_WIDGET (widget));
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g_return_if_fail (widget->parent == NULL);
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gtk_widget_ref (GTK_WIDGET (container));
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gtk_widget_ref (widget);
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gtk_signal_emit (GTK_OBJECT (container), container_signals[ADD], widget);
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if (widget->parent)
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{
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va_list var_args;
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GSList *arg_list = NULL;
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GSList *info_list = NULL;
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gchar *error;
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va_start (var_args, first_arg_name);
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error = gtk_container_child_args_collect (GTK_OBJECT_TYPE (container),
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&arg_list,
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&info_list,
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first_arg_name,
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var_args);
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va_end (var_args);
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if (error)
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{
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g_warning ("gtk_container_add_with_args(): %s", error);
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g_free (error);
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}
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else
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{
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GSList *slist_arg;
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GSList *slist_info;
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slist_arg = arg_list;
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slist_info = info_list;
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while (slist_arg)
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{
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gtk_container_arg_set (container, widget, slist_arg->data, slist_info->data);
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slist_arg = slist_arg->next;
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slist_info = slist_info->next;
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}
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gtk_args_collect_cleanup (arg_list, info_list);
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}
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}
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gtk_widget_unref (widget);
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gtk_widget_unref (GTK_WIDGET (container));
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}
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void
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gtk_container_addv (GtkContainer *container,
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GtkWidget *widget,
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guint n_args,
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GtkArg *args)
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{
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g_return_if_fail (container != NULL);
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g_return_if_fail (GTK_IS_CONTAINER (container));
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g_return_if_fail (widget != NULL);
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g_return_if_fail (GTK_IS_WIDGET (widget));
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g_return_if_fail (widget->parent == NULL);
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gtk_widget_ref (GTK_WIDGET (container));
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gtk_widget_ref (widget);
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gtk_signal_emit (GTK_OBJECT (container), container_signals[ADD], widget);
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if (widget->parent)
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{
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GtkArg *max_args;
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for (max_args = args + n_args; args < max_args; args++)
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gtk_container_arg_set (container, widget, args, NULL);
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}
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gtk_widget_unref (widget);
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gtk_widget_unref (GTK_WIDGET (container));
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}
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void
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gtk_container_child_setv (GtkContainer *container,
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GtkWidget *child,
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guint n_args,
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GtkArg *args)
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{
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GtkArg *max_args;
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g_return_if_fail (container != NULL);
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g_return_if_fail (GTK_IS_CONTAINER (container));
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g_return_if_fail (child != NULL);
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g_return_if_fail (GTK_IS_WIDGET (child));
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g_return_if_fail (child->parent != NULL);
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if (n_args)
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g_return_if_fail (args != NULL);
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for (max_args = args + n_args; args < max_args; args++)
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gtk_container_arg_set (container, child, args, NULL);
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}
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void
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gtk_container_child_getv (GtkContainer *container,
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GtkWidget *child,
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guint n_args,
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GtkArg *args)
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{
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GtkArg *max_args;
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g_return_if_fail (container != NULL);
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g_return_if_fail (GTK_IS_CONTAINER (container));
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g_return_if_fail (child != NULL);
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g_return_if_fail (GTK_IS_WIDGET (child));
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g_return_if_fail (child->parent != NULL);
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if (n_args)
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g_return_if_fail (args != NULL);
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for (max_args = args + n_args; args < max_args; args++)
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gtk_container_arg_get (container, child, args, NULL);
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}
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void
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gtk_container_child_set (GtkContainer *container,
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GtkWidget *child,
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const gchar *first_arg_name,
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...)
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{
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va_list var_args;
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GSList *arg_list = NULL;
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GSList *info_list = NULL;
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gchar *error;
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g_return_if_fail (container != NULL);
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g_return_if_fail (GTK_IS_CONTAINER (container));
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g_return_if_fail (child != NULL);
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g_return_if_fail (GTK_IS_WIDGET (child));
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g_return_if_fail (child->parent != NULL);
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va_start (var_args, first_arg_name);
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error = gtk_container_child_args_collect (GTK_OBJECT_TYPE (container),
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&arg_list,
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&info_list,
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first_arg_name,
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var_args);
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va_end (var_args);
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if (error)
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{
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g_warning ("gtk_container_child_set(): %s", error);
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g_free (error);
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}
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else
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{
|
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GSList *slist_arg;
|
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GSList *slist_info;
|
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slist_arg = arg_list;
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slist_info = info_list;
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while (slist_arg)
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{
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gtk_container_arg_set (container, child, slist_arg->data, slist_info->data);
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slist_arg = slist_arg->next;
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slist_info = slist_info->next;
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}
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gtk_args_collect_cleanup (arg_list, info_list);
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}
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}
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|
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void
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gtk_container_arg_set (GtkContainer *container,
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GtkWidget *child,
|
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GtkArg *arg,
|
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GtkArgInfo *info)
|
|
{
|
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GtkContainerClass *class;
|
|
|
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g_return_if_fail (container != NULL);
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g_return_if_fail (GTK_IS_CONTAINER (container));
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g_return_if_fail (child != NULL);
|
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g_return_if_fail (GTK_IS_WIDGET (child));
|
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g_return_if_fail (arg != NULL);
|
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|
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if (!info)
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{
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gchar *error;
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error = gtk_arg_get_info (GTK_OBJECT_TYPE (container),
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container_child_arg_info_ht,
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arg->name,
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&info);
|
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if (error)
|
|
{
|
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g_warning ("gtk_container_arg_set(): %s", error);
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g_free (error);
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return;
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}
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}
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g_return_if_fail (info->arg_flags & GTK_ARG_CHILD_ARG);
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|
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if (! (info->arg_flags & GTK_ARG_WRITABLE))
|
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{
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g_warning ("gtk_container_arg_set(): argument \"%s\" is not writable",
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info->full_name);
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return;
|
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}
|
|
if (info->type != arg->type)
|
|
{
|
|
g_warning ("gtk_container_arg_set(): argument \"%s\" has invalid type `%s'",
|
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info->full_name,
|
|
gtk_type_name (arg->type));
|
|
return;
|
|
}
|
|
|
|
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
|
|
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;
|
|
container->resize_widgets = NULL;
|
|
}
|
|
|
|
static void
|
|
gtk_container_destroy (GtkObject *object)
|
|
{
|
|
GtkContainer *container;
|
|
|
|
g_return_if_fail (object != NULL);
|
|
g_return_if_fail (GTK_IS_CONTAINER (object));
|
|
|
|
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);
|
|
|
|
/* do this before walking child widgets, to avoid
|
|
* removing children from focus chain one by one.
|
|
*/
|
|
if (container->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);
|
|
}
|
|
|
|
static void
|
|
gtk_container_set_property (GObject *object,
|
|
guint prop_id,
|
|
const GValue *value,
|
|
GParamSpec *pspec)
|
|
{
|
|
GtkContainer *container;
|
|
|
|
container = GTK_CONTAINER (object);
|
|
|
|
switch (prop_id)
|
|
{
|
|
case PROP_BORDER_WIDTH:
|
|
gtk_container_set_border_width (container, g_value_get_uint (value));
|
|
break;
|
|
case PROP_RESIZE_MODE:
|
|
gtk_container_set_resize_mode (container, g_value_get_enum (value));
|
|
break;
|
|
case PROP_CHILD:
|
|
gtk_container_add (container, GTK_WIDGET (g_value_get_object (value)));
|
|
break;
|
|
default:
|
|
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void
|
|
gtk_container_get_property (GObject *object,
|
|
guint prop_id,
|
|
GValue *value,
|
|
GParamSpec *pspec)
|
|
{
|
|
GtkContainer *container;
|
|
|
|
container = GTK_CONTAINER (object);
|
|
|
|
switch (prop_id)
|
|
{
|
|
case PROP_BORDER_WIDTH:
|
|
g_value_set_uint (value, container->border_width);
|
|
break;
|
|
case PROP_RESIZE_MODE:
|
|
g_value_set_enum (value, container->resize_mode);
|
|
break;
|
|
default:
|
|
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
|
|
break;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* 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_set_border_width (GtkContainer *container,
|
|
guint border_width)
|
|
{
|
|
g_return_if_fail (container != NULL);
|
|
g_return_if_fail (GTK_IS_CONTAINER (container));
|
|
|
|
if (container->border_width != border_width)
|
|
{
|
|
container->border_width = border_width;
|
|
g_object_notify (G_OBJECT (container), "border_width");
|
|
|
|
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);
|
|
}
|
|
|
|
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));
|
|
|
|
container_resize_queue = g_slist_remove (container_resize_queue, container);
|
|
GTK_PRIVATE_UNSET_FLAG (container, GTK_RESIZE_PENDING);
|
|
}
|
|
|
|
void
|
|
gtk_container_clear_resize_widgets (GtkContainer *container)
|
|
{
|
|
GSList *node;
|
|
|
|
g_return_if_fail (container != NULL);
|
|
g_return_if_fail (GTK_IS_CONTAINER (container));
|
|
|
|
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_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;
|
|
g_object_notify (G_OBJECT (container), "resize_mode");
|
|
}
|
|
|
|
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));
|
|
}
|
|
g_object_notify (G_OBJECT (container), "resize_mode");
|
|
}
|
|
}
|
|
|
|
void
|
|
gtk_container_set_reallocate_redraws (GtkContainer *container,
|
|
gboolean needs_redraws)
|
|
{
|
|
g_return_if_fail (GTK_IS_CONTAINER (container));
|
|
|
|
container->reallocate_redraws = needs_redraws ? TRUE : FALSE;
|
|
}
|
|
|
|
static GtkContainer*
|
|
gtk_container_get_resize_container (GtkContainer *container)
|
|
{
|
|
GtkWidget *widget;
|
|
|
|
widget = GTK_WIDGET (container);
|
|
|
|
while (widget->parent)
|
|
{
|
|
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_queue_resize (GtkContainer *container)
|
|
{
|
|
GtkContainer *resize_container;
|
|
|
|
g_return_if_fail (container != NULL);
|
|
g_return_if_fail (GTK_IS_CONTAINER (container));
|
|
|
|
/* 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_check_resize (GtkContainer *container)
|
|
{
|
|
g_return_if_fail (container != NULL);
|
|
g_return_if_fail (GTK_IS_CONTAINER (container));
|
|
|
|
gtk_signal_emit (GTK_OBJECT (container), container_signals[CHECK_RESIZE]);
|
|
}
|
|
|
|
static void
|
|
gtk_container_real_check_resize (GtkContainer *container)
|
|
{
|
|
GtkWidget *widget;
|
|
GtkRequisition requisition;
|
|
|
|
g_return_if_fail (container != NULL);
|
|
g_return_if_fail (GTK_IS_CONTAINER (container));
|
|
|
|
widget = GTK_WIDGET (container);
|
|
|
|
gtk_widget_size_request (widget, &requisition);
|
|
|
|
if (requisition.width > widget->allocation.width ||
|
|
requisition.height > widget->allocation.height)
|
|
{
|
|
if (GTK_IS_RESIZE_CONTAINER (container))
|
|
gtk_widget_size_allocate (GTK_WIDGET (container),
|
|
>K_WIDGET (container)->allocation);
|
|
else
|
|
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;
|
|
|
|
/* 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 ancestry. 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 ancestry 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
|
|
* ancestry 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 ancestry 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)
|
|
{
|
|
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;
|
|
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 = GTK_OBJECT_TYPE (child);
|
|
GTK_VALUE_OBJECT (args[0]) = GTK_OBJECT (child);
|
|
|
|
/* location for return value */
|
|
args[1].name = NULL;
|
|
args[1].type = GTK_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,
|
|
GtkDestroyNotify notify)
|
|
{
|
|
g_return_if_fail (container != NULL);
|
|
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);
|
|
}
|
|
|
|
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],
|
|
direction, &return_val);
|
|
|
|
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)
|
|
{
|
|
GList *children;
|
|
|
|
children = NULL;
|
|
|
|
gtk_container_foreach (container,
|
|
gtk_container_children_callback,
|
|
&children);
|
|
|
|
return g_list_reverse (children);
|
|
}
|
|
|
|
static void
|
|
gtk_container_child_position_callback (GtkWidget *widget,
|
|
gpointer client_data)
|
|
{
|
|
struct {
|
|
GtkWidget *child;
|
|
guint i;
|
|
guint index;
|
|
} *data = client_data;
|
|
|
|
data->i++;
|
|
if (data->child == widget)
|
|
data->index = data->i;
|
|
}
|
|
|
|
static gchar*
|
|
gtk_container_child_default_composite_name (GtkContainer *container,
|
|
GtkWidget *child)
|
|
{
|
|
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);
|
|
|
|
return name;
|
|
}
|
|
|
|
gchar*
|
|
gtk_container_child_composite_name (GtkContainer *container,
|
|
GtkWidget *child)
|
|
{
|
|
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);
|
|
|
|
if (GTK_WIDGET_COMPOSITE_CHILD (child))
|
|
{
|
|
static GQuark quark_composite_name = 0;
|
|
gchar *name;
|
|
|
|
if (!quark_composite_name)
|
|
quark_composite_name = g_quark_from_static_string ("gtk-composite-name");
|
|
|
|
name = gtk_object_get_data_by_id (GTK_OBJECT (child), quark_composite_name);
|
|
if (!name)
|
|
{
|
|
GtkContainerClass *class;
|
|
|
|
class = GTK_CONTAINER_GET_CLASS (container);
|
|
if (class->composite_name)
|
|
name = class->composite_name (container, child);
|
|
}
|
|
else
|
|
name = g_strdup (name);
|
|
|
|
return name;
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
|
|
void
|
|
gtk_container_real_set_focus_child (GtkContainer *container,
|
|
GtkWidget *child)
|
|
{
|
|
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 (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);
|
|
}
|
|
|
|
|
|
/* 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 GList*
|
|
get_focus_chain (GtkContainer *container)
|
|
{
|
|
GList *chain;
|
|
|
|
chain = g_object_get_data (G_OBJECT (container), "gtk-container-focus-chain");
|
|
|
|
return chain;
|
|
}
|
|
|
|
static GList*
|
|
filter_unfocusable (GtkContainer *container,
|
|
GList *list)
|
|
{
|
|
GList *tmp_list;
|
|
GList *tmp_list2;
|
|
|
|
tmp_list = list;
|
|
while (tmp_list)
|
|
{
|
|
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;
|
|
|
|
list = g_list_remove_link (list, tmp_list2);
|
|
g_list_free_1 (tmp_list2);
|
|
}
|
|
}
|
|
|
|
return list;
|
|
}
|
|
|
|
static gboolean
|
|
gtk_container_real_focus (GtkContainer *container,
|
|
GtkDirectionType direction)
|
|
{
|
|
GList *children;
|
|
gint return_val;
|
|
|
|
g_return_val_if_fail (container != NULL, FALSE);
|
|
g_return_val_if_fail (GTK_IS_CONTAINER (container), FALSE);
|
|
|
|
/* Fail if the container is inappropriate for focus movement
|
|
*/
|
|
if (!GTK_WIDGET_DRAWABLE (container) ||
|
|
!GTK_WIDGET_IS_SENSITIVE (container))
|
|
return FALSE;
|
|
|
|
return_val = FALSE;
|
|
|
|
if (GTK_WIDGET_CAN_FOCUS (container))
|
|
{
|
|
if (!GTK_WIDGET_HAS_FOCUS (container))
|
|
{
|
|
gtk_widget_grab_focus (GTK_WIDGET (container));
|
|
return_val = TRUE;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
/* Get a list of the containers children, allowing focus
|
|
* chain to override.
|
|
*/
|
|
if (container->has_focus_chain)
|
|
{
|
|
GList *chain;
|
|
|
|
chain = get_focus_chain (container);
|
|
|
|
children = g_list_copy (chain);
|
|
}
|
|
else
|
|
{
|
|
children = NULL;
|
|
gtk_container_forall (container,
|
|
gtk_container_children_callback,
|
|
&children);
|
|
children = g_list_reverse (children);
|
|
}
|
|
|
|
if (children)
|
|
{
|
|
/* Remove any children which are inappropriate for focus movement
|
|
*/
|
|
children = filter_unfocusable (container, children);
|
|
|
|
switch (direction)
|
|
{
|
|
case GTK_DIR_TAB_FORWARD:
|
|
case GTK_DIR_TAB_BACKWARD:
|
|
if (container->has_focus_chain)
|
|
{
|
|
if (direction == GTK_DIR_TAB_BACKWARD)
|
|
children = g_list_reverse (children);
|
|
return_val = gtk_container_focus_move (container, children, direction);
|
|
}
|
|
else
|
|
return_val = gtk_container_focus_tab (container, children, direction);
|
|
break;
|
|
case GTK_DIR_UP:
|
|
case GTK_DIR_DOWN:
|
|
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);
|
|
break;
|
|
}
|
|
|
|
g_list_free (children);
|
|
}
|
|
}
|
|
|
|
return return_val;
|
|
}
|
|
|
|
static gboolean
|
|
gtk_container_focus_tab (GtkContainer *container,
|
|
GList *children,
|
|
GtkDirectionType direction)
|
|
{
|
|
GtkWidget *child;
|
|
GtkWidget *child2;
|
|
GList *tmp_list;
|
|
guint length;
|
|
guint i, j;
|
|
|
|
length = g_list_length (children);
|
|
|
|
/* sort the children in the y direction */
|
|
for (i = 1; i < length; i++)
|
|
{
|
|
j = i;
|
|
tmp_list = g_list_nth (children, j);
|
|
child = tmp_list->data;
|
|
|
|
while (j > 0)
|
|
{
|
|
child2 = tmp_list->prev->data;
|
|
if (child->allocation.y < child2->allocation.y)
|
|
{
|
|
tmp_list->data = tmp_list->prev->data;
|
|
tmp_list = tmp_list->prev;
|
|
j--;
|
|
}
|
|
else
|
|
break;
|
|
}
|
|
|
|
tmp_list->data = child;
|
|
}
|
|
|
|
/* sort the children in the x direction while
|
|
* maintaining the y direction sort.
|
|
*/
|
|
for (i = 1; i < length; i++)
|
|
{
|
|
j = i;
|
|
tmp_list = g_list_nth (children, j);
|
|
child = tmp_list->data;
|
|
|
|
while (j > 0)
|
|
{
|
|
child2 = tmp_list->prev->data;
|
|
if ((child->allocation.x < child2->allocation.x) &&
|
|
(child->allocation.y == child2->allocation.y))
|
|
{
|
|
tmp_list->data = tmp_list->prev->data;
|
|
tmp_list = tmp_list->prev;
|
|
j--;
|
|
}
|
|
else
|
|
break;
|
|
}
|
|
|
|
tmp_list->data = child;
|
|
}
|
|
|
|
/* if we are going backwards then reverse the order
|
|
* of the children.
|
|
*/
|
|
if (direction == GTK_DIR_TAB_BACKWARD)
|
|
children = g_list_reverse (children);
|
|
|
|
return gtk_container_focus_move (container, children, direction);
|
|
}
|
|
|
|
static gboolean
|
|
old_focus_coords (GtkContainer *container, GdkRectangle *old_focus_rect)
|
|
{
|
|
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))
|
|
{
|
|
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;
|
|
}
|
|
|
|
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)
|
|
{
|
|
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
|
|
return (x1 < x2) ? 1 : ((x1 == x2) ? 0 : -1);
|
|
}
|
|
else
|
|
return (y1 < y2) ? -1 : 1;
|
|
}
|
|
|
|
static gboolean
|
|
gtk_container_focus_up_down (GtkContainer *container,
|
|
GList **children,
|
|
GtkDirectionType direction)
|
|
{
|
|
CompareInfo compare;
|
|
GList *tmp_list;
|
|
|
|
if (container->focus_child)
|
|
{
|
|
gint compare_x1;
|
|
gint compare_x2;
|
|
gint compare_y;
|
|
|
|
/* Delete widgets from list that don't match minimum criteria */
|
|
|
|
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)
|
|
{
|
|
GtkWidget *child = tmp_list->data;
|
|
GList *next = tmp_list->next;
|
|
gint child_x1, child_x2;
|
|
|
|
if (child != container->focus_child)
|
|
{
|
|
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);
|
|
}
|
|
}
|
|
|
|
tmp_list = next;
|
|
}
|
|
|
|
compare.x = (compare_x1 + compare_x2) / 2;
|
|
compare.y = container->focus_child->allocation.y + container->focus_child->allocation.height / 2;
|
|
}
|
|
else
|
|
{
|
|
/* No old focus widget, need to figure out starting x,y some other way
|
|
*/
|
|
GtkWidget *widget = GTK_WIDGET (container);
|
|
GdkRectangle old_focus_rect;
|
|
|
|
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;
|
|
else
|
|
compare.x = widget->allocation.width / 2;
|
|
}
|
|
|
|
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;
|
|
}
|
|
|
|
*children = g_list_sort_with_data (*children, up_down_compare, &compare);
|
|
|
|
if (direction == GTK_DIR_UP)
|
|
*children = g_list_reverse (*children);
|
|
|
|
return gtk_container_focus_move (container, *children, direction);
|
|
}
|
|
|
|
static gint
|
|
left_right_compare (gconstpointer a,
|
|
gconstpointer b,
|
|
gpointer data)
|
|
{
|
|
const GtkWidget *child1 = a;
|
|
const GtkWidget *child2 = b;
|
|
CompareInfo *compare = data;
|
|
|
|
gint x1 = child1->allocation.x + child1->allocation.width / 2;
|
|
gint x2 = child2->allocation.x + child2->allocation.width / 2;
|
|
|
|
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 gboolean
|
|
gtk_container_focus_left_right (GtkContainer *container,
|
|
GList **children,
|
|
GtkDirectionType direction)
|
|
{
|
|
CompareInfo compare;
|
|
GList *tmp_list;
|
|
|
|
if (container->focus_child)
|
|
{
|
|
gint compare_y1;
|
|
gint compare_y2;
|
|
gint compare_x;
|
|
|
|
/* Delete widgets from list that don't match minimum criteria */
|
|
|
|
compare_y1 = container->focus_child->allocation.y;
|
|
compare_y2 = container->focus_child->allocation.y + container->focus_child->allocation.height;
|
|
|
|
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)
|
|
{
|
|
GtkWidget *child = tmp_list->data;
|
|
GList *next = tmp_list->next;
|
|
gint child_y1, child_y2;
|
|
|
|
if (child != container->focus_child)
|
|
{
|
|
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);
|
|
}
|
|
}
|
|
|
|
tmp_list = next;
|
|
}
|
|
|
|
compare.y = (compare_y1 + compare_y2) / 2;
|
|
compare.x = container->focus_child->allocation.x + container->focus_child->allocation.width / 2;
|
|
}
|
|
else
|
|
{
|
|
/* No old focus widget, need to figure out starting x,y some other way
|
|
*/
|
|
GtkWidget *widget = GTK_WIDGET (container);
|
|
GdkRectangle old_focus_rect;
|
|
|
|
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;
|
|
else
|
|
compare.y = widget->allocation.height / 2;
|
|
}
|
|
|
|
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;
|
|
}
|
|
|
|
*children = g_list_sort_with_data (*children, left_right_compare, &compare);
|
|
|
|
if (direction == GTK_DIR_LEFT)
|
|
*children = g_list_reverse (*children);
|
|
|
|
return gtk_container_focus_move (container, *children, direction);
|
|
}
|
|
|
|
static gboolean
|
|
gtk_container_focus_move (GtkContainer *container,
|
|
GList *children,
|
|
GtkDirectionType direction)
|
|
{
|
|
GtkWidget *focus_child;
|
|
GtkWidget *child;
|
|
|
|
focus_child = container->focus_child;
|
|
|
|
while (children)
|
|
{
|
|
child = children->data;
|
|
children = children->next;
|
|
|
|
if (!child)
|
|
continue;
|
|
|
|
if (focus_child)
|
|
{
|
|
if (focus_child == child)
|
|
{
|
|
focus_child = NULL;
|
|
|
|
if (GTK_WIDGET_DRAWABLE (child) &&
|
|
GTK_IS_CONTAINER (child))
|
|
if (gtk_container_focus (GTK_CONTAINER (child), direction))
|
|
return TRUE;
|
|
}
|
|
}
|
|
else if (GTK_WIDGET_DRAWABLE (child) &&
|
|
gtk_widget_is_ancestor (child, GTK_WIDGET (container)))
|
|
{
|
|
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;
|
|
}
|
|
}
|
|
}
|
|
|
|
return FALSE;
|
|
}
|
|
|
|
|
|
static void
|
|
gtk_container_children_callback (GtkWidget *widget,
|
|
gpointer client_data)
|
|
{
|
|
GList **children;
|
|
|
|
children = (GList**) client_data;
|
|
*children = g_list_prepend (*children, widget);
|
|
}
|
|
|
|
|
|
/* Hack-around */
|
|
#define g_signal_handlers_disconnect_by_func(obj, func, data) g_signal_handlers_disconnect_matched (obj, G_SIGNAL_MATCH_FUNC | G_SIGNAL_MATCH_DATA, 0, 0, NULL, func, data)
|
|
|
|
static void
|
|
chain_widget_destroyed (GtkWidget *widget,
|
|
gpointer user_data)
|
|
{
|
|
GtkContainer *container;
|
|
GList *chain;
|
|
|
|
container = GTK_CONTAINER (user_data);
|
|
|
|
chain = g_object_get_data (G_OBJECT (container),
|
|
"gtk-container-focus-chain");
|
|
|
|
chain = g_list_remove (chain, widget);
|
|
|
|
g_signal_handlers_disconnect_by_func (G_OBJECT (widget),
|
|
chain_widget_destroyed,
|
|
user_data);
|
|
|
|
g_object_set_data (G_OBJECT (container),
|
|
"gtk-container-focus-chain",
|
|
chain);
|
|
}
|
|
|
|
void
|
|
gtk_container_set_focus_chain (GtkContainer *container,
|
|
GList *focusable_widgets)
|
|
{
|
|
GList *chain;
|
|
GList *tmp_list;
|
|
|
|
g_return_if_fail (GTK_IS_CONTAINER (container));
|
|
|
|
if (container->has_focus_chain)
|
|
gtk_container_unset_focus_chain (container);
|
|
|
|
container->has_focus_chain = TRUE;
|
|
|
|
chain = NULL;
|
|
tmp_list = focusable_widgets;
|
|
while (tmp_list != NULL)
|
|
{
|
|
g_return_if_fail (GTK_IS_WIDGET (tmp_list->data));
|
|
|
|
/* In principle each widget in the chain should be a descendant
|
|
* of the container, but we don't want to check that here, it's
|
|
* expensive and also it's allowed to set the focus chain before
|
|
* you pack the widgets, or have a widget in the chain that isn't
|
|
* always packed. So we check for ancestor during actual traversal.
|
|
*/
|
|
|
|
chain = g_list_prepend (chain, tmp_list->data);
|
|
|
|
gtk_signal_connect (GTK_OBJECT (tmp_list->data),
|
|
"destroy",
|
|
GTK_SIGNAL_FUNC (chain_widget_destroyed),
|
|
container);
|
|
|
|
tmp_list = g_list_next (tmp_list);
|
|
}
|
|
|
|
chain = g_list_reverse (chain);
|
|
|
|
g_object_set_data (G_OBJECT (container),
|
|
"gtk-container-focus-chain",
|
|
chain);
|
|
}
|
|
|
|
void
|
|
gtk_container_unset_focus_chain (GtkContainer *container)
|
|
{
|
|
g_return_if_fail (GTK_IS_CONTAINER (container));
|
|
|
|
if (container->has_focus_chain)
|
|
{
|
|
GList *chain;
|
|
GList *tmp_list;
|
|
|
|
chain = get_focus_chain (container);
|
|
|
|
container->has_focus_chain = FALSE;
|
|
|
|
g_object_set_data (G_OBJECT (container), "gtk-container-focus-chain",
|
|
NULL);
|
|
|
|
tmp_list = chain;
|
|
while (tmp_list != NULL)
|
|
{
|
|
g_signal_handlers_disconnect_by_func (G_OBJECT (tmp_list->data),
|
|
chain_widget_destroyed,
|
|
container);
|
|
|
|
tmp_list = g_list_next (tmp_list);
|
|
}
|
|
|
|
g_list_free (chain);
|
|
}
|
|
}
|
|
|
|
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)
|
|
{
|
|
g_return_if_fail (widget != NULL);
|
|
g_return_if_fail (GTK_IS_CONTAINER (widget));
|
|
|
|
gtk_container_foreach (GTK_CONTAINER (widget),
|
|
(GtkCallback) gtk_widget_show_all,
|
|
NULL);
|
|
gtk_widget_show (widget);
|
|
}
|
|
|
|
static void
|
|
gtk_container_hide_all (GtkWidget *widget)
|
|
{
|
|
g_return_if_fail (widget != NULL);
|
|
g_return_if_fail (GTK_IS_CONTAINER (widget));
|
|
|
|
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);
|
|
}
|
|
}
|