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gimp/app/widgets/gtkwrapbox.c

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/* GTK - The GIMP Toolkit
* Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
*
* GtkWrapBox: Wrapping box widget
* Copyright (C) 1999 Tim Janik
*
* 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 "config.h"
#ifdef __GNUC__
#warning GTK_DISABLE_DEPRECATED
#endif
#undef GTK_DISABLE_DEPRECATED
#include "gtkwrapbox.h"
/* --- arguments --- */
enum {
ARG_0,
ARG_HOMOGENEOUS,
ARG_JUSTIFY,
ARG_HSPACING,
ARG_VSPACING,
ARG_LINE_JUSTIFY,
ARG_ASPECT_RATIO,
ARG_CURRENT_RATIO,
ARG_CHILD_LIMIT
};
enum {
CHILD_PROP_0,
CHILD_PROP_POSITION,
CHILD_PROP_HEXPAND,
CHILD_PROP_HFILL,
CHILD_PROP_VEXPAND,
CHILD_PROP_VFILL,
CHILD_PROP_WRAPPED
};
/* --- prototypes --- */
static void gtk_wrap_box_class_init (GtkWrapBoxClass *klass);
static void gtk_wrap_box_init (GtkWrapBox *wbox);
static void gtk_wrap_box_get_arg (GtkObject *object,
GtkArg *arg,
guint arg_id);
static void gtk_wrap_box_set_arg (GtkObject *object,
GtkArg *arg,
guint arg_id);
static void gtk_wrap_box_set_child_property (GtkContainer *container,
GtkWidget *child,
guint property_id,
const GValue *value,
GParamSpec *pspec);
static void gtk_wrap_box_get_child_property (GtkContainer *container,
GtkWidget *child,
guint property_id,
GValue *value,
GParamSpec *pspec);
static void gtk_wrap_box_map (GtkWidget *widget);
static void gtk_wrap_box_unmap (GtkWidget *widget);
static gint gtk_wrap_box_expose (GtkWidget *widget,
GdkEventExpose *event);
static void gtk_wrap_box_add (GtkContainer *container,
GtkWidget *widget);
static void gtk_wrap_box_remove (GtkContainer *container,
GtkWidget *widget);
static void gtk_wrap_box_forall (GtkContainer *container,
gboolean include_internals,
GtkCallback callback,
gpointer callback_data);
static GtkType gtk_wrap_box_child_type (GtkContainer *container);
/* --- variables --- */
static gpointer parent_class = NULL;
/* --- functions --- */
GtkType
gtk_wrap_box_get_type (void)
{
static GtkType wrap_box_type = 0;
if (!wrap_box_type)
{
static const GtkTypeInfo wrap_box_info =
{
"GtkWrapBox",
sizeof (GtkWrapBox),
sizeof (GtkWrapBoxClass),
(GtkClassInitFunc) gtk_wrap_box_class_init,
(GtkObjectInitFunc) gtk_wrap_box_init,
/* reserved_1 */ NULL,
/* reserved_2 */ NULL,
(GtkClassInitFunc) NULL,
};
wrap_box_type = gtk_type_unique (GTK_TYPE_CONTAINER, &wrap_box_info);
}
return wrap_box_type;
}
static void
gtk_wrap_box_class_init (GtkWrapBoxClass *class)
{
GtkObjectClass *object_class;
GtkWidgetClass *widget_class;
GtkContainerClass *container_class;
object_class = GTK_OBJECT_CLASS (class);
widget_class = GTK_WIDGET_CLASS (class);
container_class = GTK_CONTAINER_CLASS (class);
parent_class = g_type_class_peek_parent (class);
object_class->set_arg = gtk_wrap_box_set_arg;
object_class->get_arg = gtk_wrap_box_get_arg;
widget_class->map = gtk_wrap_box_map;
widget_class->unmap = gtk_wrap_box_unmap;
widget_class->expose_event = gtk_wrap_box_expose;
container_class->add = gtk_wrap_box_add;
container_class->remove = gtk_wrap_box_remove;
container_class->forall = gtk_wrap_box_forall;
container_class->child_type = gtk_wrap_box_child_type;
container_class->set_child_property = gtk_wrap_box_set_child_property;
container_class->get_child_property = gtk_wrap_box_get_child_property;
class->rlist_line_children = NULL;
gtk_object_add_arg_type ("GtkWrapBox::homogeneous",
GTK_TYPE_BOOL, GTK_ARG_READWRITE, ARG_HOMOGENEOUS);
gtk_object_add_arg_type ("GtkWrapBox::justify",
GTK_TYPE_JUSTIFICATION, GTK_ARG_READWRITE, ARG_JUSTIFY);
gtk_object_add_arg_type ("GtkWrapBox::hspacing",
GTK_TYPE_UINT, GTK_ARG_READWRITE, ARG_HSPACING);
gtk_object_add_arg_type ("GtkWrapBox::vspacing",
GTK_TYPE_UINT, GTK_ARG_READWRITE, ARG_VSPACING);
gtk_object_add_arg_type ("GtkWrapBox::line_justify",
GTK_TYPE_JUSTIFICATION, GTK_ARG_READWRITE, ARG_LINE_JUSTIFY);
gtk_object_add_arg_type ("GtkWrapBox::aspect_ratio",
GTK_TYPE_FLOAT, GTK_ARG_READWRITE, ARG_ASPECT_RATIO);
gtk_object_add_arg_type ("GtkWrapBox::current_ratio",
GTK_TYPE_FLOAT, GTK_ARG_READABLE, ARG_CURRENT_RATIO);
gtk_object_add_arg_type ("GtkWrapBox::max_children_per_line",
GTK_TYPE_UINT, GTK_ARG_READWRITE, ARG_CHILD_LIMIT);
gtk_container_class_install_child_property (container_class, CHILD_PROP_POSITION,
g_param_spec_int ("position", NULL, NULL,
-1, G_MAXINT, 0,
G_PARAM_READWRITE));
gtk_container_class_install_child_property (container_class, CHILD_PROP_HEXPAND,
g_param_spec_boolean ("hexpand", NULL, NULL,
FALSE,
G_PARAM_READWRITE));
gtk_container_class_install_child_property (container_class, CHILD_PROP_HFILL,
g_param_spec_boolean ("hfill", NULL, NULL,
FALSE,
G_PARAM_READWRITE));
gtk_container_class_install_child_property (container_class, CHILD_PROP_VEXPAND,
g_param_spec_boolean ("vexpand", NULL, NULL,
FALSE,
G_PARAM_READWRITE));
gtk_container_class_install_child_property (container_class, CHILD_PROP_VFILL,
g_param_spec_boolean ("vfill", NULL, NULL,
FALSE,
G_PARAM_READWRITE));
gtk_container_class_install_child_property (container_class, CHILD_PROP_VFILL,
g_param_spec_boolean ("wrapped", NULL, NULL,
FALSE,
G_PARAM_READWRITE));
}
static void
gtk_wrap_box_init (GtkWrapBox *wbox)
{
GTK_WIDGET_SET_FLAGS (wbox, GTK_NO_WINDOW);
wbox->homogeneous = FALSE;
wbox->hspacing = 0;
wbox->vspacing = 0;
wbox->justify = GTK_JUSTIFY_LEFT;
wbox->line_justify = GTK_JUSTIFY_BOTTOM;
wbox->n_children = 0;
wbox->children = NULL;
wbox->aspect_ratio = 1;
wbox->child_limit = 32767;
}
static void
gtk_wrap_box_set_arg (GtkObject *object,
GtkArg *arg,
guint arg_id)
{
GtkWrapBox *wbox = GTK_WRAP_BOX (object);
switch (arg_id)
{
case ARG_HOMOGENEOUS:
gtk_wrap_box_set_homogeneous (wbox, GTK_VALUE_BOOL (*arg));
break;
case ARG_JUSTIFY:
gtk_wrap_box_set_justify (wbox, GTK_VALUE_ENUM (*arg));
break;
case ARG_LINE_JUSTIFY:
gtk_wrap_box_set_line_justify (wbox, GTK_VALUE_ENUM (*arg));
break;
case ARG_HSPACING:
gtk_wrap_box_set_hspacing (wbox, GTK_VALUE_UINT (*arg));
break;
case ARG_VSPACING:
gtk_wrap_box_set_vspacing (wbox, GTK_VALUE_UINT (*arg));
break;
case ARG_ASPECT_RATIO:
gtk_wrap_box_set_aspect_ratio (wbox, GTK_VALUE_FLOAT (*arg));
break;
case ARG_CHILD_LIMIT:
if (wbox->child_limit != GTK_VALUE_UINT (*arg))
{
wbox->child_limit = CLAMP (GTK_VALUE_UINT (*arg), 1, 32767);
gtk_widget_queue_resize (GTK_WIDGET (wbox));
}
break;
}
}
static void
gtk_wrap_box_get_arg (GtkObject *object,
GtkArg *arg,
guint arg_id)
{
GtkWrapBox *wbox = GTK_WRAP_BOX (object);
GtkWidget *widget = GTK_WIDGET (object);
switch (arg_id)
{
case ARG_HOMOGENEOUS:
GTK_VALUE_BOOL (*arg) = wbox->homogeneous;
break;
case ARG_JUSTIFY:
GTK_VALUE_ENUM (*arg) = wbox->justify;
break;
case ARG_LINE_JUSTIFY:
GTK_VALUE_ENUM (*arg) = wbox->line_justify;
break;
case ARG_HSPACING:
GTK_VALUE_UINT (*arg) = wbox->hspacing;
break;
case ARG_VSPACING:
GTK_VALUE_UINT (*arg) = wbox->vspacing;
break;
case ARG_ASPECT_RATIO:
GTK_VALUE_FLOAT (*arg) = wbox->aspect_ratio;
break;
case ARG_CURRENT_RATIO:
GTK_VALUE_FLOAT (*arg) = (((gfloat) widget->allocation.width) /
((gfloat) widget->allocation.height));
break;
case ARG_CHILD_LIMIT:
GTK_VALUE_UINT (*arg) = wbox->child_limit;
break;
default:
arg->type = GTK_TYPE_INVALID;
break;
}
}
static void
gtk_wrap_box_set_child_property (GtkContainer *container,
GtkWidget *child,
guint property_id,
const GValue *value,
GParamSpec *pspec)
{
GtkWrapBox *wbox = GTK_WRAP_BOX (container);
gboolean hexpand = FALSE, hfill = FALSE, vexpand = FALSE, vfill = FALSE, wrapped = FALSE;
if (property_id != CHILD_PROP_POSITION)
gtk_wrap_box_query_child_packing (wbox, child, &hexpand, &hfill, &vexpand, &vfill, &wrapped);
switch (property_id)
{
case CHILD_PROP_POSITION:
gtk_wrap_box_reorder_child (wbox, child, g_value_get_int (value));
break;
case CHILD_PROP_HEXPAND:
gtk_wrap_box_set_child_packing (wbox, child,
g_value_get_boolean (value), hfill,
vexpand, vfill,
wrapped);
break;
case CHILD_PROP_HFILL:
gtk_wrap_box_set_child_packing (wbox, child,
hexpand, g_value_get_boolean (value),
vexpand, vfill,
wrapped);
break;
case CHILD_PROP_VEXPAND:
gtk_wrap_box_set_child_packing (wbox, child,
hexpand, hfill,
g_value_get_boolean (value), vfill,
wrapped);
break;
case CHILD_PROP_VFILL:
gtk_wrap_box_set_child_packing (wbox, child,
hexpand, hfill,
vexpand, g_value_get_boolean (value),
wrapped);
break;
case CHILD_PROP_WRAPPED:
gtk_wrap_box_set_child_packing (wbox, child,
hexpand, hfill,
vexpand, vfill,
g_value_get_boolean (value));
break;
default:
GTK_CONTAINER_WARN_INVALID_CHILD_PROPERTY_ID (container, property_id, pspec);
break;
}
}
static void
gtk_wrap_box_get_child_property (GtkContainer *container,
GtkWidget *child,
guint property_id,
GValue *value,
GParamSpec *pspec)
{
GtkWrapBox *wbox = GTK_WRAP_BOX (container);
gboolean hexpand = FALSE, hfill = FALSE, vexpand = FALSE, vfill = FALSE, wrapped = FALSE;
if (property_id != CHILD_PROP_POSITION)
gtk_wrap_box_query_child_packing (wbox, child, &hexpand, &hfill, &vexpand, &vfill, &wrapped);
switch (property_id)
{
GtkWrapBoxChild *child_info;
guint i;
case CHILD_PROP_POSITION:
i = 0;
for (child_info = wbox->children; child_info; child_info = child_info->next)
{
if (child_info->widget == child)
break;
i += 1;
}
g_value_set_int (value, child_info ? i : -1);
break;
case CHILD_PROP_HEXPAND:
g_value_set_boolean (value, hexpand);
break;
case CHILD_PROP_HFILL:
g_value_set_boolean (value, hfill);
break;
case CHILD_PROP_VEXPAND:
g_value_set_boolean (value, vexpand);
break;
case CHILD_PROP_VFILL:
g_value_set_boolean (value, vfill);
break;
case CHILD_PROP_WRAPPED:
g_value_set_boolean (value, wrapped);
break;
default:
GTK_CONTAINER_WARN_INVALID_CHILD_PROPERTY_ID (container, property_id, pspec);
break;
}
}
static GtkType
gtk_wrap_box_child_type (GtkContainer *container)
{
return GTK_TYPE_WIDGET;
}
void
gtk_wrap_box_set_homogeneous (GtkWrapBox *wbox,
gboolean homogeneous)
{
g_return_if_fail (GTK_IS_WRAP_BOX (wbox));
homogeneous = homogeneous != FALSE;
if (wbox->homogeneous != homogeneous)
{
wbox->homogeneous = homogeneous;
gtk_widget_queue_resize (GTK_WIDGET (wbox));
}
}
void
gtk_wrap_box_set_hspacing (GtkWrapBox *wbox,
guint hspacing)
{
g_return_if_fail (GTK_IS_WRAP_BOX (wbox));
if (wbox->hspacing != hspacing)
{
wbox->hspacing = hspacing;
gtk_widget_queue_resize (GTK_WIDGET (wbox));
}
}
void
gtk_wrap_box_set_vspacing (GtkWrapBox *wbox,
guint vspacing)
{
g_return_if_fail (GTK_IS_WRAP_BOX (wbox));
if (wbox->vspacing != vspacing)
{
wbox->vspacing = vspacing;
gtk_widget_queue_resize (GTK_WIDGET (wbox));
}
}
void
gtk_wrap_box_set_justify (GtkWrapBox *wbox,
GtkJustification justify)
{
g_return_if_fail (GTK_IS_WRAP_BOX (wbox));
g_return_if_fail (justify <= GTK_JUSTIFY_FILL);
if (wbox->justify != justify)
{
wbox->justify = justify;
gtk_widget_queue_resize (GTK_WIDGET (wbox));
}
}
void
gtk_wrap_box_set_line_justify (GtkWrapBox *wbox,
GtkJustification line_justify)
{
g_return_if_fail (GTK_IS_WRAP_BOX (wbox));
g_return_if_fail (line_justify <= GTK_JUSTIFY_FILL);
if (wbox->line_justify != line_justify)
{
wbox->line_justify = line_justify;
gtk_widget_queue_resize (GTK_WIDGET (wbox));
}
}
void
gtk_wrap_box_set_aspect_ratio (GtkWrapBox *wbox,
gfloat aspect_ratio)
{
g_return_if_fail (GTK_IS_WRAP_BOX (wbox));
aspect_ratio = CLAMP (aspect_ratio, 1.0 / 256.0, 256.0);
if (wbox->aspect_ratio != aspect_ratio)
{
wbox->aspect_ratio = aspect_ratio;
gtk_widget_queue_resize (GTK_WIDGET (wbox));
}
}
void
gtk_wrap_box_pack (GtkWrapBox *wbox,
GtkWidget *child,
gboolean hexpand,
gboolean hfill,
gboolean vexpand,
gboolean vfill)
{
g_return_if_fail (GTK_IS_WRAP_BOX (wbox));
g_return_if_fail (GTK_IS_WIDGET (child));
g_return_if_fail (child->parent == NULL);
gtk_wrap_box_pack_wrapped (wbox, child, hexpand, hfill, vexpand, vfill, FALSE);
}
void
gtk_wrap_box_pack_wrapped (GtkWrapBox *wbox,
GtkWidget *child,
gboolean hexpand,
gboolean hfill,
gboolean vexpand,
gboolean vfill,
gboolean wrapped)
{
GtkWrapBoxChild *child_info;
g_return_if_fail (GTK_IS_WRAP_BOX (wbox));
g_return_if_fail (GTK_IS_WIDGET (child));
g_return_if_fail (child->parent == NULL);
child_info = g_new (GtkWrapBoxChild, 1);
child_info->widget = child;
child_info->hexpand = hexpand ? TRUE : FALSE;
child_info->hfill = hfill ? TRUE : FALSE;
child_info->vexpand = vexpand ? TRUE : FALSE;
child_info->vfill = vfill ? TRUE : FALSE;
child_info->wrapped = wrapped ? TRUE : FALSE;
child_info->next = NULL;
if (wbox->children)
{
GtkWrapBoxChild *last = wbox->children;
while (last->next)
last = last->next;
last->next = child_info;
}
else
wbox->children = child_info;
wbox->n_children++;
gtk_widget_set_parent (child, GTK_WIDGET (wbox));
if (GTK_WIDGET_REALIZED (wbox))
gtk_widget_realize (child);
if (GTK_WIDGET_VISIBLE (wbox) && GTK_WIDGET_VISIBLE (child))
{
if (GTK_WIDGET_MAPPED (wbox))
gtk_widget_map (child);
gtk_widget_queue_resize (child);
}
}
void
gtk_wrap_box_reorder_child (GtkWrapBox *wbox,
GtkWidget *child,
gint position)
{
GtkWrapBoxChild *child_info, *last = NULL;
g_return_if_fail (GTK_IS_WRAP_BOX (wbox));
g_return_if_fail (GTK_IS_WIDGET (child));
for (child_info = wbox->children; child_info; last = child_info, child_info = last->next)
if (child_info->widget == child)
break;
if (child_info && wbox->children->next)
{
GtkWrapBoxChild *tmp;
if (last)
last->next = child_info->next;
else
wbox->children = child_info->next;
last = NULL;
tmp = wbox->children;
while (position && tmp->next)
{
position--;
last = tmp;
tmp = last->next;
}
if (position)
{
tmp->next = child_info;
child_info->next = NULL;
}
else
{
child_info->next = tmp;
if (last)
last->next = child_info;
else
wbox->children = child_info;
}
if (GTK_WIDGET_VISIBLE (child) && GTK_WIDGET_VISIBLE (wbox))
gtk_widget_queue_resize (child);
}
}
void
gtk_wrap_box_query_child_packing (GtkWrapBox *wbox,
GtkWidget *child,
gboolean *hexpand,
gboolean *hfill,
gboolean *vexpand,
gboolean *vfill,
gboolean *wrapped)
{
GtkWrapBoxChild *child_info;
g_return_if_fail (GTK_IS_WRAP_BOX (wbox));
g_return_if_fail (GTK_IS_WIDGET (child));
for (child_info = wbox->children; child_info; child_info = child_info->next)
if (child_info->widget == child)
break;
if (child_info)
{
if (hexpand)
*hexpand = child_info->hexpand;
if (hfill)
*hfill = child_info->hfill;
if (vexpand)
*vexpand = child_info->vexpand;
if (vfill)
*vfill = child_info->vfill;
if (wrapped)
*wrapped = child_info->wrapped;
}
}
void
gtk_wrap_box_set_child_packing (GtkWrapBox *wbox,
GtkWidget *child,
gboolean hexpand,
gboolean hfill,
gboolean vexpand,
gboolean vfill,
gboolean wrapped)
{
GtkWrapBoxChild *child_info;
g_return_if_fail (GTK_IS_WRAP_BOX (wbox));
g_return_if_fail (GTK_IS_WIDGET (child));
hexpand = hexpand != FALSE;
hfill = hfill != FALSE;
vexpand = vexpand != FALSE;
vfill = vfill != FALSE;
wrapped = wrapped != FALSE;
for (child_info = wbox->children; child_info; child_info = child_info->next)
if (child_info->widget == child)
break;
if (child_info &&
(child_info->hexpand != hexpand || child_info->vexpand != vexpand ||
child_info->hfill != hfill || child_info->vfill != vfill ||
child_info->wrapped != wrapped))
{
child_info->hexpand = hexpand;
child_info->hfill = hfill;
child_info->vexpand = vexpand;
child_info->vfill = vfill;
child_info->wrapped = wrapped;
if (GTK_WIDGET_VISIBLE (child) && GTK_WIDGET_VISIBLE (wbox))
gtk_widget_queue_resize (child);
}
}
guint*
gtk_wrap_box_query_line_lengths (GtkWrapBox *wbox,
guint *_n_lines)
{
GtkWrapBoxChild *next_child = NULL;
GtkAllocation area, *allocation;
gboolean expand_line;
GSList *slist;
guint max_child_size, border, n_lines = 0, *lines = NULL;
if (_n_lines)
*_n_lines = 0;
g_return_val_if_fail (GTK_IS_WRAP_BOX (wbox), NULL);
allocation = &GTK_WIDGET (wbox)->allocation;
border = GTK_CONTAINER (wbox)->border_width;
area.x = allocation->x + border;
area.y = allocation->y + border;
area.width = MAX (1, (gint) allocation->width - border * 2);
area.height = MAX (1, (gint) allocation->height - border * 2);
next_child = wbox->children;
slist = GTK_WRAP_BOX_GET_CLASS (wbox)->rlist_line_children (wbox,
&next_child,
&area,
&max_child_size,
&expand_line);
while (slist)
{
guint l = n_lines++;
lines = g_renew (guint, lines, n_lines);
lines[l] = g_slist_length (slist);
g_slist_free (slist);
slist = GTK_WRAP_BOX_GET_CLASS (wbox)->rlist_line_children (wbox,
&next_child,
&area,
&max_child_size,
&expand_line);
}
if (_n_lines)
*_n_lines = n_lines;
return lines;
}
static void
gtk_wrap_box_map (GtkWidget *widget)
{
GtkWrapBox *wbox = GTK_WRAP_BOX (widget);
GtkWrapBoxChild *child;
GTK_WIDGET_SET_FLAGS (wbox, GTK_MAPPED);
for (child = wbox->children; child; child = child->next)
if (GTK_WIDGET_VISIBLE (child->widget) &&
!GTK_WIDGET_MAPPED (child->widget))
gtk_widget_map (child->widget);
}
static void
gtk_wrap_box_unmap (GtkWidget *widget)
{
GtkWrapBox *wbox = GTK_WRAP_BOX (widget);
GtkWrapBoxChild *child;
GTK_WIDGET_UNSET_FLAGS (wbox, GTK_MAPPED);
for (child = wbox->children; child; child = child->next)
if (GTK_WIDGET_VISIBLE (child->widget) &&
GTK_WIDGET_MAPPED (child->widget))
gtk_widget_unmap (child->widget);
}
static gint
gtk_wrap_box_expose (GtkWidget *widget,
GdkEventExpose *event)
{
return GTK_WIDGET_CLASS (parent_class)->expose_event (widget, event);
}
static void
gtk_wrap_box_add (GtkContainer *container,
GtkWidget *widget)
{
gtk_wrap_box_pack (GTK_WRAP_BOX (container), widget, FALSE, TRUE, FALSE, TRUE);
}
static void
gtk_wrap_box_remove (GtkContainer *container,
GtkWidget *widget)
{
GtkWrapBox *wbox = GTK_WRAP_BOX (container);
GtkWrapBoxChild *child, *last = NULL;
child = wbox->children;
while (child)
{
if (child->widget == widget)
{
gboolean was_visible;
was_visible = GTK_WIDGET_VISIBLE (widget);
gtk_widget_unparent (widget);
if (last)
last->next = child->next;
else
wbox->children = child->next;
g_free (child);
wbox->n_children--;
if (was_visible)
gtk_widget_queue_resize (GTK_WIDGET (container));
break;
}
last = child;
child = last->next;
}
}
static void
gtk_wrap_box_forall (GtkContainer *container,
gboolean include_internals,
GtkCallback callback,
gpointer callback_data)
{
GtkWrapBox *wbox = GTK_WRAP_BOX (container);
GtkWrapBoxChild *child;
child = wbox->children;
while (child)
{
GtkWidget *widget = child->widget;
child = child->next;
callback (widget, callback_data);
}
}
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