gtk3/gtk/gtkcontainer.c
Owen Taylor 913831b26f Remove --g-fatal-warnings flag from argv.
Thu Jun 18 21:13:54 1998  Owen Taylor  <otaylor@gtk.org>

	* gtk/gtkmain.c (gtk_init): Remove --g-fatal-warnings flag
	  from argv.

Thu Jun 18 20:22:28 1998  Owen Taylor  <otaylor@gtk.org>

	* gtk/genmarshal.pl: Modified to be more idiomatic Perl,
	  to be more readable perl, to spit out stuff that looks
	  more like readable C, and to pipe output through indent
	  so output looks a lot like readable C. No functional
	  changes.

Thu Jun 18 17:43:31 1998  Owen Taylor  <otaylor@gtk.org>

	* gtk/gtkpixmap.[ch] (gtk_pixmap_set): Clear the background if
	  necessary when switching to a masked pixmap. (Based on a patch
	  from Ullrich Hafner <hafner@informatik.uni-wuerzburg.de>)

Thu Jun 18 16:18:10 1998  Owen Taylor  <otaylor@gtk.org>

	* gtk/gtkeditable.[ch]: Added action signals for keyboard
   	  bindings. (move_cursor, kill_word, etc, etc, etc).

          removed the time argument from
	  gtk_editable_cut/copy/paste_clipboard (source but not
          binary incompatible...) Instead get time from
	  gtk_get_current_event ().

	* gtk/gtktext.c gtk/gtkentry.c: Support the new editable
	  signals.

Thu Jun 18 02:52:09 1998  Owen Taylor  <otaylor@gtk.org>

	Patches from Damon Chaplin <DAChaplin@email.msn.com>:

        gtk/gtkfontsel.h: Fixed GtkFontSelectionClass - I forgot to change
	     parent class to GtkNotebookClass when splitting the widget in
	     two.  Also updated some comments.

        gtk/gtkfontsel.c: Fixed bug when toggling 'Allow scaled bitmaps'
               button without a font selected.

             Fixed bug in set_font_name - I hadn't updated the code to
               search for the style in the font_style clist - it was
               still assuming the style row was equal to its index,
               but it isn't any more.

             Changed 'Reset' button on filter page to 'Clear Filter'.
             Deleted old code relating to the old 'Filter Fonts' toggle
             Updated some comments.
             Cleared 'Actual Fontname' if no font is set.

        gtk/testgtk.c: Fixed problem when 'OK' button is pressed - it was
	     destroying the GtkFontSelection instead of the
             GtkFontSelectionDialog.

Thu Jun 18 02:15:31 1998  Owen Taylor  <otaylor@gtk.org>

	* gtk/gtkmain.c (gtk_init): Added --g-fatal-warnings
	  flag to make all warnings fatal errors.

	* gtk/testthreads.c: moved <pthreads.h> include inside
	  #ifdef USE_PTHREADS

Thu Jun 18 01:37:31 1998  Owen Taylor  <otaylor@gtk.org>

	* gtk/gtkenums.h gtk/gtkcontainer.[ch] gtk/gtkwidget.c
	  gtk/gtkmenu.c gtk/gtkviewport.c gtk/gtkwindow.c:

	- Added new function gtk_container_set_resize_mode() for
	  fine-grained control of where resize-queueing is done.

	- Removed GtkContainer::need_resize and GtkWindow::move_resize
	- Added GtkContainer::check_resize to replace need_resize.

	- Added function gtk_container_check_resize() to trigger
	  queued resizes, and gtk_container_resize_children() to
	  Figure which children need to be size-allocated. (logic
	  moved from gtkwindow.c)

	- Reorganized code in gtkwindow.c

	- Set the resize-mode for viewports so that resizes within
	  a viewport don't propagate out of it.
1998-06-19 01:26:24 +00:00

1683 lines
43 KiB
C

/* GTK - The GIMP Toolkit
* 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
* 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.
*
* 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., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#include <string.h>
#include "gtkcontainer.h"
#include "gtkprivate.h"
#include "gtksignal.h"
#include <stdarg.h>
enum {
ADD,
REMOVE,
CHECK_RESIZE,
FOREACH,
FOCUS,
SET_FOCUS_CHILD,
LAST_SIGNAL
};
enum {
ARG_0,
ARG_BORDER_WIDTH,
ARG_CHILD
};
typedef struct _GtkLArgInfo GtkLArgInfo;
struct _GtkLArgInfo
{
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,
GtkFunction 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_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 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 gint gtk_container_real_focus (GtkContainer *container,
GtkDirectionType direction);
static void gtk_container_real_set_focus_child (GtkContainer *container,
GtkWidget *widget);
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);
GtkArg* gtk_object_collect_args (guint *n_args,
va_list args1,
va_list args2);
static guint container_signals[LAST_SIGNAL] = { 0 };
static GHashTable *arg_info_ht = NULL;
static GtkWidgetClass *parent_class = NULL;
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;
GtkType
gtk_container_get_type (void)
{
static GtkType container_type = 0;
if (!container_type)
{
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,
};
container_type = gtk_type_unique (gtk_widget_get_type (), &container_info);
}
return container_type;
}
static void
gtk_container_class_init (GtkContainerClass *class)
{
GtkObjectClass *object_class;
GtkWidgetClass *widget_class;
object_class = (GtkObjectClass*) class;
widget_class = (GtkWidgetClass*) class;
parent_class = gtk_type_class (gtk_widget_get_type ());
vadjustment_key_id = gtk_object_data_force_id (vadjustment_key);
hadjustment_key_id = gtk_object_data_force_id (hadjustment_key);
gtk_object_add_arg_type ("GtkContainer::border_width", GTK_TYPE_ULONG, GTK_ARG_READWRITE, ARG_BORDER_WIDTH);
gtk_object_add_arg_type ("GtkContainer::child", GTK_TYPE_WIDGET, GTK_ARG_WRITABLE, ARG_CHILD);
container_signals[ADD] =
gtk_signal_new ("add",
GTK_RUN_FIRST,
object_class->type,
GTK_SIGNAL_OFFSET (GtkContainerClass, add),
gtk_container_marshal_signal_1,
GTK_TYPE_NONE, 1,
GTK_TYPE_WIDGET);
container_signals[REMOVE] =
gtk_signal_new ("remove",
GTK_RUN_FIRST,
object_class->type,
GTK_SIGNAL_OFFSET (GtkContainerClass, remove),
gtk_container_marshal_signal_1,
GTK_TYPE_NONE, 1,
GTK_TYPE_WIDGET);
container_signals[CHECK_RESIZE] =
gtk_signal_new ("check_resize",
GTK_RUN_LAST,
object_class->type,
GTK_SIGNAL_OFFSET (GtkContainerClass, check_resize),
gtk_signal_default_marshaller,
GTK_TYPE_NONE, 0);
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[FOCUS] =
gtk_signal_new ("focus",
GTK_RUN_LAST,
object_class->type,
GTK_SIGNAL_OFFSET (GtkContainerClass, focus),
gtk_container_marshal_signal_3,
GTK_TYPE_DIRECTION_TYPE, 1,
GTK_TYPE_DIRECTION_TYPE);
container_signals[SET_FOCUS_CHILD] =
gtk_signal_new ("set-focus-child",
GTK_RUN_FIRST,
object_class->type,
GTK_SIGNAL_OFFSET (GtkContainerClass, set_focus_child),
gtk_container_marshal_signal_1,
GTK_TYPE_NONE, 1,
GTK_TYPE_WIDGET);
gtk_object_class_add_signals (object_class, container_signals, LAST_SIGNAL);
object_class->destroy = gtk_container_destroy;
/* 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;
class->add = gtk_container_add_unimplemented;
class->remove = gtk_container_remove_unimplemented;
class->check_resize = gtk_container_real_check_resize;
class->foreach = NULL;
class->focus = gtk_container_real_focus;
class->set_focus_child = gtk_container_real_set_focus_child;
/* linkage */
class->child_type = NULL;
class->get_child_arg = NULL;
class->set_child_arg = NULL;
}
static void
gtk_container_get_child_arg (GtkContainer *container,
GtkWidget *child,
GtkType type,
GtkArg *arg,
guint arg_id)
{
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));
class = GTK_CONTAINER_CLASS (GTK_OBJECT (container)->klass);
if (class->get_child_arg)
class->get_child_arg (container, child, arg, arg_id);
else
arg->type = GTK_TYPE_INVALID;
}
static void
gtk_container_set_child_arg (GtkContainer *container,
GtkWidget *child,
GtkType type,
GtkArg *arg,
guint arg_id)
{
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));
class = GTK_CONTAINER_CLASS (GTK_OBJECT (container)->klass);
if (class->set_child_arg)
class->set_child_arg (container, child, arg, arg_id);
}
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);
slot = GTK_TYPE_NONE;
class = GTK_CONTAINER_CLASS (GTK_OBJECT (container)->klass);
if (class->child_type)
slot = class->child_type (container);
return slot;
}
void
gtk_container_add_child_arg_type (const gchar *arg_name,
GtkType arg_type,
guint arg_flags,
guint arg_id)
{
GtkLArgInfo *info;
gchar class_part[1024];
gchar *arg_part;
GtkType class_type;
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);
arg_flags |= GTK_ARG_CHILD_ARG;
arg_flags &= GTK_ARG_MASK;
arg_part = strchr (arg_name, ':');
if (!arg_part || (arg_part[0] != ':') || (arg_part[1] != ':'))
{
g_warning ("gtk_container_add_arg_type(): invalid arg name: \"%s\"\n", arg_name);
return;
}
strncpy (class_part, arg_name, (glong) (arg_part - arg_name));
class_part[(glong) (arg_part - arg_name)] = '\0';
class_type = gtk_type_from_name (class_part);
if (!class_type && !gtk_type_is_a (class_type, GTK_TYPE_CONTAINER))
{
g_warning ("gtk_container_add_arg_type(): invalid class name in arg: \"%s\"\n", arg_name);
return;
}
info = g_new (GtkLArgInfo, 1);
info->name = g_strdup (arg_name);
info->type = arg_type;
info->class_type = class_type;
info->arg_flags = arg_flags;
info->arg_id = arg_id;
info->seq_id = ++((GtkContainerClass*) gtk_type_class (class_type))->n_child_args;
if (!arg_info_ht)
arg_info_ht = g_hash_table_new (g_str_hash, g_str_equal);
g_hash_table_insert (arg_info_ht, info->name, info);
}
typedef struct
{
GList *arg_list;
GtkType class_type;
} GtkQueryLArgData;
static void
gtk_query_larg_foreach (gpointer key,
gpointer value,
gpointer user_data)
{
register GtkLArgInfo *info;
register GtkQueryLArgData *data;
info = value;
data = user_data;
if (info->class_type == data->class_type)
data->arg_list = g_list_prepend (data->arg_list, info);
}
GtkArg*
gtk_container_query_child_args (GtkType class_type,
guint32 **arg_flags,
guint *n_args)
{
GtkArg *args;
GtkQueryLArgData query_data;
if (arg_flags)
*arg_flags = NULL;
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);
if (!arg_info_ht)
return NULL;
/* make sure the types class has been initialized, because
* the argument setup happens in the gtk_*_class_init() functions.
*/
gtk_type_class (class_type);
query_data.arg_list = NULL;
query_data.class_type = class_type;
g_hash_table_foreach (arg_info_ht, gtk_query_larg_foreach, &query_data);
if (query_data.arg_list)
{
register GList *list;
register guint len;
list = query_data.arg_list;
len = 1;
while (list->next)
{
len++;
list = list->next;
}
g_assert (len == ((GtkContainerClass*) gtk_type_class (class_type))->n_child_args); /* paranoid */
args = g_new0 (GtkArg, len);
*n_args = len;
if (arg_flags)
*arg_flags = g_new (guint32, len);
do
{
GtkLArgInfo *info;
info = list->data;
list = list->prev;
g_assert (info->seq_id > 0 && info->seq_id <= len); /* paranoid */
args[info->seq_id - 1].type = info->type;
args[info->seq_id - 1].name = info->name;
if (arg_flags)
(*arg_flags)[info->seq_id - 1] = info->arg_flags;
}
while (list);
g_list_free (query_data.arg_list);
}
else
args = NULL;
return args;
}
void
gtk_container_child_arg_getv (GtkContainer *container,
GtkWidget *child,
guint n_args,
GtkArg *args)
{
guint i;
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));
if (!arg_info_ht)
return;
for (i = 0; i < n_args; i++)
{
GtkLArgInfo *info;
gchar *lookup_name;
gchar *d;
/* hm, the name cutting shouldn't be needed on gets, but what the heck...
*/
lookup_name = g_strdup (args[i].name);
d = strchr (lookup_name, ':');
if (d && d[1] == ':')
{
d = strchr (d + 2, ':');
if (d)
*d = 0;
info = g_hash_table_lookup (arg_info_ht, lookup_name);
}
else
info = NULL;
if (!info)
{
g_warning ("gtk_container_child_arg_getv(): invalid arg name: \"%s\"\n",
lookup_name);
args[i].type = GTK_TYPE_INVALID;
g_free (lookup_name);
continue;
}
else if (!gtk_type_is_a (GTK_OBJECT_TYPE (container), info->class_type))
{
g_warning ("gtk_container_child_arg_getv(): invalid arg for %s: \"%s\"\n",
gtk_type_name (GTK_OBJECT_TYPE (container)), lookup_name);
args[i].type = GTK_TYPE_INVALID;
g_free (lookup_name);
continue;
}
else if (! (info->arg_flags & GTK_ARG_READABLE))
{
g_warning ("gtk_container_child_arg_getv(): arg is not supplied for read-access: \"%s\"\n",
lookup_name);
args[i].type = GTK_TYPE_INVALID;
g_free (lookup_name);
continue;
}
else
g_free (lookup_name);
args[i].type = info->type;
gtk_container_get_child_arg (container, child, info->class_type, &args[i], info->arg_id);
}
}
void
gtk_container_child_arg_setv (GtkContainer *container,
GtkWidget *child,
guint n_args,
GtkArg *args)
{
guint i;
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));
if (!arg_info_ht)
return;
for (i = 0; i < n_args; i++)
{
GtkLArgInfo *info;
gchar *lookup_name;
gchar *d;
gboolean arg_ok;
lookup_name = g_strdup (args[i].name);
d = strchr (lookup_name, ':');
if (d && d[1] == ':')
{
d = strchr (d + 2, ':');
if (d)
*d = 0;
info = g_hash_table_lookup (arg_info_ht, lookup_name);
}
else
info = NULL;
arg_ok = TRUE;
if (!info)
{
g_warning ("gtk_container_child_arg_setv(): invalid arg name: \"%s\"\n",
lookup_name);
arg_ok = FALSE;
}
else if (info->type != args[i].type)
{
g_warning ("gtk_container_child_arg_setv(): invalid arg type for: \"%s\"\n",
lookup_name);
arg_ok = FALSE;
}
else if (!gtk_type_is_a (GTK_OBJECT_TYPE (container), info->class_type))
{
g_warning ("gtk_container_child_arg_setv(): invalid arg for %s: \"%s\"\n",
gtk_type_name (GTK_OBJECT_TYPE (container)), lookup_name);
arg_ok = FALSE;
}
else if (! (info->arg_flags & GTK_ARG_WRITABLE))
{
g_warning ("gtk_container_child_arg_setv(): arg is not supplied for write-access: \"%s\"\n",
lookup_name);
arg_ok = FALSE;
}
g_free (lookup_name);
if (!arg_ok)
continue;
gtk_container_set_child_arg (container, child, info->class_type, &args[i], info->arg_id);
}
}
void
gtk_container_add_with_args (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 == NULL);
gtk_widget_ref (GTK_WIDGET (container));
gtk_widget_ref (widget);
gtk_signal_emit (GTK_OBJECT (container), container_signals[ADD], widget);
if (widget->parent)
{
GtkArg *args;
guint n_args;
va_list args1;
va_list args2;
va_start (args1, widget);
va_start (args2, widget);
args = gtk_object_collect_args (&n_args, args1, args2);
gtk_container_child_arg_setv (container, widget, n_args, args);
g_free (args);
va_end (args1);
va_end (args2);
}
gtk_widget_unref (widget);
gtk_widget_unref (GTK_WIDGET (container));
}
void
gtk_container_add_with_argv (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);
if (widget->parent)
gtk_container_child_arg_setv (container, widget, n_args, args);
gtk_widget_unref (widget);
gtk_widget_unref (GTK_WIDGET (container));
}
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->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);
gtk_container_clear_resize_widgets (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_arg (GtkContainer *container,
GtkArg *arg,
guint arg_id)
{
switch (arg_id)
{
case ARG_BORDER_WIDTH:
gtk_container_border_width (container, GTK_VALUE_ULONG (*arg));
break;
case ARG_CHILD:
gtk_container_add (container, GTK_WIDGET (GTK_VALUE_OBJECT (*arg)));
break;
default:
break;
}
}
static void
gtk_container_get_arg (GtkContainer *container,
GtkArg *arg,
guint arg_id)
{
switch (arg_id)
{
case ARG_BORDER_WIDTH:
GTK_VALUE_ULONG (*arg) = container->border_width;
break;
default:
arg->type = GTK_TYPE_INVALID;
break;
}
}
void
gtk_container_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;
if (GTK_WIDGET_REALIZED (container))
gtk_widget_queue_resize (GTK_WIDGET (container));
}
}
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));
g_return_if_fail (widget->parent == NULL);
gtk_signal_emit (GTK_OBJECT (container), container_signals[ADD], widget);
}
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_disable_resize (GtkContainer *container)
{
g_warning ("gtk_container_disable_resize does nothing!");
}
void
gtk_container_enable_resize (GtkContainer *container)
{
g_warning ("gtk_container_enable_resize does nothing!");
}
void
gtk_container_block_resize (GtkContainer *container)
{
g_return_if_fail (container != NULL);
g_return_if_fail (GTK_IS_CONTAINER (container));
}
void
gtk_container_unblock_resize (GtkContainer *container)
{
g_return_if_fail (container != NULL);
g_return_if_fail (GTK_IS_CONTAINER (container));
}
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 (!(GTK_WIDGET_TOPLEVEL (container) &&
resize_mode == GTK_RESIZE_PARENT));
container->resize_mode = resize_mode;
if (container->resize_widgets != NULL)
{
if (resize_mode == GTK_RESIZE_IMMEDIATE)
gtk_container_check_resize (container);
else if (resize_mode == GTK_RESIZE_PARENT)
{
gtk_widget_queue_resize (GTK_WIDGET (container));
container->resize_widgets = NULL;
}
}
}
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]);
}
gint
gtk_container_need_resize (GtkContainer *container)
{
gtk_container_check_resize (container);
return TRUE;
}
static void
gtk_container_real_check_resize (GtkContainer *container)
{
GtkWidget *widget;
g_return_if_fail (container != NULL);
g_return_if_fail (GTK_IS_CONTAINER (container));
widget = GTK_WIDGET (container);
gtk_widget_size_request (widget, &widget->requisition);
if ((widget->requisition.width > widget->allocation.width) ||
(widget->requisition.height > widget->allocation.height))
{
gtk_container_clear_resize_widgets (container);
gtk_widget_queue_resize (widget);
}
else
{
gtk_container_resize_children (container);
}
}
/* The window 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;
GSList *resize_widgets;
GSList *resize_containers;
GSList *node;
resize_widgets = container->resize_widgets;
container->resize_widgets = NULL;
g_return_if_fail (container != NULL);
g_return_if_fail (GTK_IS_CONTAINER (container));
for (node = resize_widgets; node; node = node->next)
{
widget = node->data;
GTK_PRIVATE_UNSET_FLAG (widget, GTK_RESIZE_NEEDED);
while (widget && widget->parent &&
((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;
}
resize_containers = NULL;
for (node = resize_widgets; node; node = node->next)
{
GtkWidget *resize_container;
widget = node->data;
if (!GTK_WIDGET_RESIZE_NEEDED (widget))
continue;
resize_container = widget->parent;
if (resize_container)
{
GTK_PRIVATE_UNSET_FLAG (widget, GTK_RESIZE_NEEDED);
widget = resize_container->parent;
while (widget)
{
if (GTK_WIDGET_RESIZE_NEEDED (widget))
{
GTK_PRIVATE_UNSET_FLAG (resize_container, GTK_RESIZE_NEEDED);
resize_container = widget;
}
widget = widget->parent;
}
}
else
resize_container = widget;
if (!g_slist_find (resize_containers, resize_container))
resize_containers = g_slist_prepend (resize_containers,
resize_container);
}
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_queue_draw (widget);
}
g_slist_free (resize_containers);
}
void
gtk_container_foreach (GtkContainer *container,
GtkCallback callback,
gpointer callback_data)
{
g_return_if_fail (container != NULL);
g_return_if_fail (GTK_IS_CONTAINER (container));
g_return_if_fail (callback != NULL);
gtk_signal_emit (GTK_OBJECT (container),
container_signals[FOREACH],
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(child)->klass->type;
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_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,
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);
}
gint
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 (container));
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);
}
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));
}
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 void
gtk_container_marshal_signal_1 (GtkObject *object,
GtkSignalFunc func,
gpointer func_data,
GtkArg *args)
{
GtkContainerSignal1 rfunc;
rfunc = (GtkContainerSignal1) func;
(* rfunc) (object, GTK_VALUE_OBJECT (args[0]), func_data);
}
static void
gtk_container_marshal_signal_2 (GtkObject *object,
GtkSignalFunc func,
gpointer func_data,
GtkArg *args)
{
GtkContainerSignal2 rfunc;
rfunc = (GtkContainerSignal2) func;
(* rfunc) (object,
GTK_VALUE_C_CALLBACK(args[0]).func,
GTK_VALUE_C_CALLBACK(args[0]).func_data,
func_data);
}
static void
gtk_container_marshal_signal_3 (GtkObject *object,
GtkSignalFunc func,
gpointer func_data,
GtkArg *args)
{
GtkContainerSignal3 rfunc;
gint *return_val;
rfunc = (GtkContainerSignal3) func;
return_val = GTK_RETLOC_ENUM (args[1]);
*return_val = (* rfunc) (object, GTK_VALUE_ENUM(args[0]), func_data);
}
static gint
gtk_container_real_focus (GtkContainer *container,
GtkDirectionType direction)
{
GList *children;
GList *tmp_list;
GList *tmp_list2;
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 insensitive
*/
if (!GTK_WIDGET_SENSITIVE (container))
return FALSE;
return_val = FALSE;
if (GTK_WIDGET_CAN_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);
if (children)
{
/* Remove any children which are insensitive
*/
tmp_list = children;
while (tmp_list)
{
if (!GTK_WIDGET_SENSITIVE (tmp_list->data))
{
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)
{
case GTK_DIR_TAB_FORWARD:
case GTK_DIR_TAB_BACKWARD:
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 gint
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 gint
gtk_container_focus_up_down (GtkContainer *container,
GList *children,
GtkDirectionType direction)
{
GtkWidget *child;
GtkWidget *child2;
GList *tmp_list;
gint dist1, dist2;
gint focus_x;
gint focus_width;
guint length;
guint i, j;
/* return failure if there isn't a focus child */
if (container->focus_child)
{
focus_width = container->focus_child->allocation.width / 2;
focus_x = container->focus_child->allocation.x + focus_width;
}
else
{
focus_width = GTK_WIDGET (container)->allocation.width;
if (GTK_WIDGET_NO_WINDOW (container))
focus_x = GTK_WIDGET (container)->allocation.x;
else
focus_x = 0;
}
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 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++)
{
j = i;
tmp_list = g_list_nth (children, j);
child = tmp_list->data;
dist1 = (child->allocation.x + child->allocation.width / 2) - focus_x;
while (j > 0)
{
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--;
}
else
break;
}
tmp_list->data = child;
}
/* 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;
tmp_list = children;
while (tmp_list)
{
child = tmp_list->data;
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;
tmp_list = tmp_list->next;
}
if (direction == GTK_DIR_UP)
children = g_list_reverse (children);
return gtk_container_focus_move (container, children, direction);
}
static gint
gtk_container_focus_left_right (GtkContainer *container,
GList *children,
GtkDirectionType direction)
{
GtkWidget *child;
GtkWidget *child2;
GList *tmp_list;
gint dist1, dist2;
gint focus_y;
gint focus_height;
guint length;
guint 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);
/* 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;
while (j > 0)
{
child2 = tmp_list->prev->data;
if (child->allocation.x < child2->allocation.x)
{
tmp_list->data = tmp_list->prev->data;
tmp_list = tmp_list->prev;
j--;
}
else
break;
}
tmp_list->data = child;
}
/* 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++)
{
j = i;
tmp_list = g_list_nth (children, j);
child = tmp_list->data;
dist1 = (child->allocation.y + child->allocation.height / 2) - focus_y;
while (j > 0)
{
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--;
}
else
break;
}
tmp_list->data = child;
}
/* 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;
}
if (direction == GTK_DIR_LEFT)
children = g_list_reverse (children);
return gtk_container_focus_move (container, children, direction);
}
static gint
gtk_container_focus_move (GtkContainer *container,
GList *children,
GtkDirectionType direction)
{
GtkWidget *focus_child;
GtkWidget *child;
focus_child = container->focus_child;
gtk_container_set_focus_child (container, NULL);
while (children)
{
child = children->data;
children = children->next;
if (!child)
continue;
if (focus_child)
{
if (focus_child == child)
{
focus_child = NULL;
if (GTK_WIDGET_VISIBLE (child) &&
GTK_IS_CONTAINER (child) &&
!GTK_WIDGET_HAS_FOCUS (child))
if (gtk_container_focus (GTK_CONTAINER (child), direction))
return TRUE;
}
}
else if (GTK_WIDGET_VISIBLE (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;
}
}
}
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);
}
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_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);
}
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);
}