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gtk2/gtk/gtkbox.c
Tim Janik 90408c4641 changed reversed_[12] to reserved_[12] in gtk_*_get_type functions. 
Sat Jul  4 13:16:24 1998  Tim Janik  <timj@gtk.org>

        * gtk/*.c: changed reversed_[12] to reserved_[12] in gtk_*_get_type
        functions.

        * gdk/gdkwindow.c:
        * gdk/gdkvisual.c: check for some pointer values to be != NULL, prior
        to XFree() calls.
1998-07-04 15:31:30 +00:00

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/* 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 "gtkbox.h"
enum {
ARG_0,
ARG_SPACING,
ARG_HOMOGENEOUS
};
enum {
CHILD_ARG_0,
CHILD_ARG_EXPAND,
CHILD_ARG_FILL,
CHILD_ARG_PADDING,
CHILD_ARG_PACK_TYPE,
CHILD_ARG_POSITION
};
static void gtk_box_class_init (GtkBoxClass *klass);
static void gtk_box_init (GtkBox *box);
static void gtk_box_get_arg (GtkObject *object,
GtkArg *arg,
guint arg_id);
static void gtk_box_set_arg (GtkObject *object,
GtkArg *arg,
guint arg_id);
static void gtk_box_map (GtkWidget *widget);
static void gtk_box_unmap (GtkWidget *widget);
static void gtk_box_draw (GtkWidget *widget,
GdkRectangle *area);
static gint gtk_box_expose (GtkWidget *widget,
GdkEventExpose *event);
static void gtk_box_add (GtkContainer *container,
GtkWidget *widget);
static void gtk_box_remove (GtkContainer *container,
GtkWidget *widget);
static void gtk_box_foreach (GtkContainer *container,
GtkCallback callback,
gpointer callback_data);
static void gtk_box_set_child_arg (GtkContainer *container,
GtkWidget *child,
GtkArg *arg,
guint arg_id);
static void gtk_box_get_child_arg (GtkContainer *container,
GtkWidget *child,
GtkArg *arg,
guint arg_id);
static GtkType gtk_box_child_type (GtkContainer *container);
static GtkContainerClass *parent_class = NULL;
GtkType
gtk_box_get_type (void)
{
static GtkType box_type = 0;
if (!box_type)
{
GtkTypeInfo box_info =
{
"GtkBox",
sizeof (GtkBox),
sizeof (GtkBoxClass),
(GtkClassInitFunc) gtk_box_class_init,
(GtkObjectInitFunc) gtk_box_init,
/* reserved_1 */ NULL,
/* reserved_2 */ NULL,
(GtkClassInitFunc) NULL,
};
box_type = gtk_type_unique (GTK_TYPE_CONTAINER, &box_info);
}
return box_type;
}
static void
gtk_box_class_init (GtkBoxClass *class)
{
GtkObjectClass *object_class;
GtkWidgetClass *widget_class;
GtkContainerClass *container_class;
object_class = (GtkObjectClass*) class;
widget_class = (GtkWidgetClass*) class;
container_class = (GtkContainerClass*) class;
parent_class = gtk_type_class (GTK_TYPE_CONTAINER);
gtk_object_add_arg_type ("GtkBox::spacing", GTK_TYPE_INT, GTK_ARG_READWRITE, ARG_SPACING);
gtk_object_add_arg_type ("GtkBox::homogeneous", GTK_TYPE_BOOL, GTK_ARG_READWRITE, ARG_HOMOGENEOUS);
gtk_container_add_child_arg_type ("GtkBox::expand", GTK_TYPE_BOOL, GTK_ARG_READWRITE, CHILD_ARG_EXPAND);
gtk_container_add_child_arg_type ("GtkBox::fill", GTK_TYPE_BOOL, GTK_ARG_READWRITE, CHILD_ARG_FILL);
gtk_container_add_child_arg_type ("GtkBox::padding", GTK_TYPE_ULONG, GTK_ARG_READWRITE, CHILD_ARG_PADDING);
gtk_container_add_child_arg_type ("GtkBox::pack_type", GTK_TYPE_PACK_TYPE, GTK_ARG_READWRITE, CHILD_ARG_PACK_TYPE);
gtk_container_add_child_arg_type ("GtkBox::position", GTK_TYPE_LONG, GTK_ARG_READWRITE, CHILD_ARG_POSITION);
object_class->set_arg = gtk_box_set_arg;
object_class->get_arg = gtk_box_get_arg;
widget_class->map = gtk_box_map;
widget_class->unmap = gtk_box_unmap;
widget_class->draw = gtk_box_draw;
widget_class->expose_event = gtk_box_expose;
container_class->add = gtk_box_add;
container_class->remove = gtk_box_remove;
container_class->foreach = gtk_box_foreach;
container_class->child_type = gtk_box_child_type;
container_class->set_child_arg = gtk_box_set_child_arg;
container_class->get_child_arg = gtk_box_get_child_arg;
}
static void
gtk_box_init (GtkBox *box)
{
GTK_WIDGET_SET_FLAGS (box, GTK_NO_WINDOW | GTK_BASIC);
box->children = NULL;
box->spacing = 0;
box->homogeneous = FALSE;
}
static void
gtk_box_set_arg (GtkObject *object,
GtkArg *arg,
guint arg_id)
{
GtkBox *box;
box = GTK_BOX (object);
switch (arg_id)
{
case ARG_SPACING:
gtk_box_set_spacing (box, GTK_VALUE_INT (*arg));
break;
case ARG_HOMOGENEOUS:
gtk_box_set_homogeneous (box, GTK_VALUE_BOOL (*arg));
break;
default:
break;
}
}
static void
gtk_box_get_arg (GtkObject *object,
GtkArg *arg,
guint arg_id)
{
GtkBox *box;
box = GTK_BOX (object);
switch (arg_id)
{
case ARG_SPACING:
GTK_VALUE_INT (*arg) = box->spacing;
break;
case ARG_HOMOGENEOUS:
GTK_VALUE_BOOL (*arg) = box->homogeneous;
break;
default:
arg->type = GTK_TYPE_INVALID;
break;
}
}
static GtkType
gtk_box_child_type (GtkContainer *container)
{
return GTK_TYPE_WIDGET;
}
static void
gtk_box_set_child_arg (GtkContainer *container,
GtkWidget *child,
GtkArg *arg,
guint arg_id)
{
gboolean expand = 0;
gboolean fill = 0;
guint padding = 0;
GtkPackType pack_type = 0;
if (arg_id != CHILD_ARG_POSITION)
gtk_box_query_child_packing (GTK_BOX (container),
child,
&expand,
&fill,
&padding,
&pack_type);
switch (arg_id)
{
case CHILD_ARG_EXPAND:
gtk_box_set_child_packing (GTK_BOX (container),
child,
GTK_VALUE_BOOL (*arg),
fill,
padding,
pack_type);
break;
case CHILD_ARG_FILL:
gtk_box_set_child_packing (GTK_BOX (container),
child,
expand,
GTK_VALUE_BOOL (*arg),
padding,
pack_type);
break;
case CHILD_ARG_PADDING:
gtk_box_set_child_packing (GTK_BOX (container),
child,
expand,
fill,
GTK_VALUE_ULONG (*arg),
pack_type);
break;
case CHILD_ARG_PACK_TYPE:
gtk_box_set_child_packing (GTK_BOX (container),
child,
expand,
fill,
padding,
GTK_VALUE_ENUM (*arg));
break;
case CHILD_ARG_POSITION:
gtk_box_reorder_child (GTK_BOX (container),
child,
GTK_VALUE_LONG (*arg));
break;
default:
break;
}
}
static void
gtk_box_get_child_arg (GtkContainer *container,
GtkWidget *child,
GtkArg *arg,
guint arg_id)
{
gboolean expand = 0;
gboolean fill = 0;
guint padding = 0;
GtkPackType pack_type = 0;
GList *list;
if (arg_id != CHILD_ARG_POSITION)
gtk_box_query_child_packing (GTK_BOX (container),
child,
&expand,
&fill,
&padding,
&pack_type);
switch (arg_id)
{
case CHILD_ARG_EXPAND:
GTK_VALUE_BOOL (*arg) = expand;
break;
case CHILD_ARG_FILL:
GTK_VALUE_BOOL (*arg) = fill;
break;
case CHILD_ARG_PADDING:
GTK_VALUE_ULONG (*arg) = padding;
break;
case CHILD_ARG_PACK_TYPE:
GTK_VALUE_ENUM (*arg) = pack_type;
break;
case CHILD_ARG_POSITION:
GTK_VALUE_LONG (*arg) = 0;
for (list = GTK_BOX (container)->children; list; list = list->next)
{
GtkBoxChild *child_entry;
child_entry = list->data;
if (child_entry->widget == child)
break;
GTK_VALUE_LONG (*arg)++;
}
if (!list)
GTK_VALUE_LONG (*arg) = -1;
break;
default:
arg->type = GTK_TYPE_INVALID;
break;
}
}
void
gtk_box_pack_start (GtkBox *box,
GtkWidget *child,
gboolean expand,
gboolean fill,
guint padding)
{
GtkBoxChild *child_info;
g_return_if_fail (box != NULL);
g_return_if_fail (GTK_IS_BOX (box));
g_return_if_fail (child != NULL);
g_return_if_fail (child->parent == NULL);
child_info = g_new (GtkBoxChild, 1);
child_info->widget = child;
child_info->padding = padding;
child_info->expand = expand ? TRUE : FALSE;
child_info->fill = fill ? TRUE : FALSE;
child_info->pack = GTK_PACK_START;
box->children = g_list_append (box->children, child_info);
gtk_widget_set_parent (child, GTK_WIDGET (box));
if (GTK_WIDGET_VISIBLE (GTK_WIDGET (box)))
{
if (GTK_WIDGET_REALIZED (GTK_WIDGET (box)) &&
!GTK_WIDGET_REALIZED (child))
gtk_widget_realize (child);
if (GTK_WIDGET_MAPPED (GTK_WIDGET (box)) &&
!GTK_WIDGET_MAPPED (child))
gtk_widget_map (child);
}
if (GTK_WIDGET_VISIBLE (child) && GTK_WIDGET_VISIBLE (box))
gtk_widget_queue_resize (child);
}
void
gtk_box_pack_end (GtkBox *box,
GtkWidget *child,
gboolean expand,
gboolean fill,
guint padding)
{
GtkBoxChild *child_info;
g_return_if_fail (box != NULL);
g_return_if_fail (GTK_IS_BOX (box));
g_return_if_fail (child != NULL);
g_return_if_fail (child->parent == NULL);
child_info = g_new (GtkBoxChild, 1);
child_info->widget = child;
child_info->padding = padding;
child_info->expand = expand ? TRUE : FALSE;
child_info->fill = fill ? TRUE : FALSE;
child_info->pack = GTK_PACK_END;
box->children = g_list_append (box->children, child_info);
gtk_widget_set_parent (child, GTK_WIDGET (box));
if (GTK_WIDGET_VISIBLE (GTK_WIDGET (box)))
{
if (GTK_WIDGET_REALIZED (GTK_WIDGET (box)) &&
!GTK_WIDGET_REALIZED (child))
gtk_widget_realize (child);
if (GTK_WIDGET_MAPPED (GTK_WIDGET (box)) &&
!GTK_WIDGET_MAPPED (child))
gtk_widget_map (child);
}
if (GTK_WIDGET_VISIBLE (child) && GTK_WIDGET_VISIBLE (box))
gtk_widget_queue_resize (child);
}
void
gtk_box_pack_start_defaults (GtkBox *box,
GtkWidget *child)
{
g_return_if_fail (box != NULL);
g_return_if_fail (GTK_IS_BOX (box));
g_return_if_fail (child != NULL);
gtk_box_pack_start (box, child, TRUE, TRUE, 0);
}
void
gtk_box_pack_end_defaults (GtkBox *box,
GtkWidget *child)
{
g_return_if_fail (box != NULL);
g_return_if_fail (GTK_IS_BOX (box));
g_return_if_fail (child != NULL);
gtk_box_pack_end (box, child, TRUE, TRUE, 0);
}
void
gtk_box_set_homogeneous (GtkBox *box,
gboolean homogeneous)
{
g_return_if_fail (box != NULL);
g_return_if_fail (GTK_IS_BOX (box));
if ((homogeneous ? TRUE : FALSE) != box->homogeneous)
{
box->homogeneous = homogeneous ? TRUE : FALSE;
gtk_widget_queue_resize (GTK_WIDGET (box));
}
}
void
gtk_box_set_spacing (GtkBox *box,
gint spacing)
{
g_return_if_fail (box != NULL);
g_return_if_fail (GTK_IS_BOX (box));
if (spacing != box->spacing)
{
box->spacing = spacing;
gtk_widget_queue_resize (GTK_WIDGET (box));
}
}
void
gtk_box_reorder_child (GtkBox *box,
GtkWidget *child,
gint position)
{
GList *list;
g_return_if_fail (box != NULL);
g_return_if_fail (GTK_IS_BOX (box));
g_return_if_fail (child != NULL);
list = box->children;
while (list)
{
GtkBoxChild *child_info;
child_info = list->data;
if (child_info->widget == child)
break;
list = list->next;
}
if (list && box->children->next)
{
GList *tmp_list;
if (list->next)
list->next->prev = list->prev;
if (list->prev)
list->prev->next = list->next;
else
box->children = list->next;
tmp_list = box->children;
while (position && tmp_list->next)
{
position--;
tmp_list = tmp_list->next;
}
if (position)
{
tmp_list->next = list;
list->prev = tmp_list;
list->next = NULL;
}
else
{
if (tmp_list->prev)
tmp_list->prev->next = list;
else
box->children = list;
list->prev = tmp_list->prev;
tmp_list->prev = list;
list->next = tmp_list;
}
if (GTK_WIDGET_VISIBLE (child) && GTK_WIDGET_VISIBLE (box))
gtk_widget_queue_resize (child);
}
}
void
gtk_box_query_child_packing (GtkBox *box,
GtkWidget *child,
gboolean *expand,
gboolean *fill,
guint *padding,
GtkPackType *pack_type)
{
GList *list;
GtkBoxChild *child_info;
g_return_if_fail (box != NULL);
g_return_if_fail (GTK_IS_BOX (box));
g_return_if_fail (child != NULL);
list = box->children;
while (list)
{
child_info = list->data;
if (child_info->widget == child)
break;
list = list->next;
}
if (list)
{
if (expand)
*expand = child_info->expand;
if (fill)
*fill = child_info->fill;
if (padding)
*padding = child_info->padding;
if (pack_type)
*pack_type = child_info->pack;
}
}
void
gtk_box_set_child_packing (GtkBox *box,
GtkWidget *child,
gboolean expand,
gboolean fill,
guint padding,
GtkPackType pack_type)
{
GList *list;
GtkBoxChild *child_info;
g_return_if_fail (box != NULL);
g_return_if_fail (GTK_IS_BOX (box));
g_return_if_fail (child != NULL);
list = box->children;
while (list)
{
child_info = list->data;
if (child_info->widget == child)
break;
list = list->next;
}
if (list)
{
child_info->expand = expand != FALSE;
child_info->fill = fill != FALSE;
child_info->padding = padding;
if (pack_type == GTK_PACK_END)
child_info->pack = GTK_PACK_END;
else
child_info->pack = GTK_PACK_START;
if (GTK_WIDGET_VISIBLE (child) && GTK_WIDGET_VISIBLE (box))
gtk_widget_queue_resize (child);
}
}
static void
gtk_box_map (GtkWidget *widget)
{
GtkBox *box;
GtkBoxChild *child;
GList *children;
g_return_if_fail (widget != NULL);
g_return_if_fail (GTK_IS_BOX (widget));
box = GTK_BOX (widget);
GTK_WIDGET_SET_FLAGS (box, GTK_MAPPED);
children = box->children;
while (children)
{
child = children->data;
children = children->next;
if (GTK_WIDGET_VISIBLE (child->widget) &&
!GTK_WIDGET_MAPPED (child->widget))
gtk_widget_map (child->widget);
}
}
static void
gtk_box_unmap (GtkWidget *widget)
{
GtkBox *box;
GtkBoxChild *child;
GList *children;
g_return_if_fail (widget != NULL);
g_return_if_fail (GTK_IS_BOX (widget));
box = GTK_BOX (widget);
GTK_WIDGET_UNSET_FLAGS (box, GTK_MAPPED);
children = box->children;
while (children)
{
child = children->data;
children = children->next;
if (GTK_WIDGET_VISIBLE (child->widget) &&
GTK_WIDGET_MAPPED (child->widget))
gtk_widget_unmap (child->widget);
}
}
static void
gtk_box_draw (GtkWidget *widget,
GdkRectangle *area)
{
GtkBox *box;
GtkBoxChild *child;
GdkRectangle child_area;
GList *children;
g_return_if_fail (widget != NULL);
g_return_if_fail (GTK_IS_BOX (widget));
if (GTK_WIDGET_DRAWABLE (widget))
{
box = GTK_BOX (widget);
children = box->children;
while (children)
{
child = children->data;
children = children->next;
if (gtk_widget_intersect (child->widget, area, &child_area))
gtk_widget_draw (child->widget, &child_area);
}
}
}
static gint
gtk_box_expose (GtkWidget *widget,
GdkEventExpose *event)
{
GtkBox *box;
GtkBoxChild *child;
GdkEventExpose child_event;
GList *children;
g_return_val_if_fail (widget != NULL, FALSE);
g_return_val_if_fail (GTK_IS_BOX (widget), FALSE);
g_return_val_if_fail (event != NULL, FALSE);
if (GTK_WIDGET_DRAWABLE (widget))
{
box = GTK_BOX (widget);
child_event = *event;
children = box->children;
while (children)
{
child = children->data;
children = children->next;
if (GTK_WIDGET_NO_WINDOW (child->widget) &&
gtk_widget_intersect (child->widget, &event->area, &child_event.area))
gtk_widget_event (child->widget, (GdkEvent*) &child_event);
}
}
return FALSE;
}
static void
gtk_box_add (GtkContainer *container,
GtkWidget *widget)
{
g_return_if_fail (container != NULL);
g_return_if_fail (GTK_IS_BOX (container));
g_return_if_fail (widget != NULL);
gtk_box_pack_start_defaults (GTK_BOX (container), widget);
}
static void
gtk_box_remove (GtkContainer *container,
GtkWidget *widget)
{
GtkBox *box;
GtkBoxChild *child;
GList *children;
g_return_if_fail (container != NULL);
g_return_if_fail (GTK_IS_BOX (container));
g_return_if_fail (widget != NULL);
box = GTK_BOX (container);
children = box->children;
while (children)
{
child = children->data;
if (child->widget == widget)
{
gboolean was_visible;
was_visible = GTK_WIDGET_VISIBLE (widget);
gtk_widget_unparent (widget);
box->children = g_list_remove_link (box->children, children);
g_list_free (children);
g_free (child);
/* queue resize regardless of GTK_WIDGET_VISIBLE (container),
* since that's what is needed by toplevels.
*/
if (was_visible)
gtk_widget_queue_resize (GTK_WIDGET (container));
break;
}
children = children->next;
}
}
static void
gtk_box_foreach (GtkContainer *container,
GtkCallback callback,
gpointer callback_data)
{
GtkBox *box;
GtkBoxChild *child;
GList *children;
g_return_if_fail (container != NULL);
g_return_if_fail (GTK_IS_BOX (container));
g_return_if_fail (callback != NULL);
box = GTK_BOX (container);
children = box->children;
while (children)
{
child = children->data;
children = children->next;
if (child->pack == GTK_PACK_START)
(* callback) (child->widget, callback_data);
}
children = g_list_last (box->children);
while (children)
{
child = children->data;
children = children->prev;
if (child->pack == GTK_PACK_END)
(* callback) (child->widget, callback_data);
}
}
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