ardour/livetrax
13
0
Fork 0
Code
fea6c7592f
livetrax/libs/tk/ytk/gtkbox.c
Robin Gareus ad51c7c2ba
Localize stripped down gtk2 
This is intended mainly for GNU/Linux distros who will remove
GTK2 support in the near future.
2024-01-06 21:52:48 +01:00

1267 lines
37 KiB
C
Raw Blame History

/* 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 Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
/*
* Modified by the GTK+ Team and others 1997-2000. See the AUTHORS
* file for a list of people on the GTK+ Team. See the ChangeLog
* files for a list of changes. These files are distributed with
* GTK+ at ftp://ftp.gtk.org/pub/gtk/.
*/
#include "config.h"
#include "gtkbox.h"
#include "gtkorientable.h"
#include "gtkprivate.h"
#include "gtkintl.h"
#include "gtkalias.h"
enum {
PROP_0,
PROP_ORIENTATION,
PROP_SPACING,
PROP_HOMOGENEOUS
};
enum {
CHILD_PROP_0,
CHILD_PROP_EXPAND,
CHILD_PROP_FILL,
CHILD_PROP_PADDING,
CHILD_PROP_PACK_TYPE,
CHILD_PROP_POSITION
};
typedef struct _GtkBoxPrivate GtkBoxPrivate;
struct _GtkBoxPrivate
{
GtkOrientation orientation;
guint default_expand : 1;
guint spacing_set : 1;
};
#define GTK_BOX_GET_PRIVATE(obj) (G_TYPE_INSTANCE_GET_PRIVATE ((obj), GTK_TYPE_BOX, GtkBoxPrivate))
static void gtk_box_set_property (GObject *object,
guint prop_id,
const GValue *value,
GParamSpec *pspec);
static void gtk_box_get_property (GObject *object,
guint prop_id,
GValue *value,
GParamSpec *pspec);
static void gtk_box_size_request (GtkWidget *widget,
GtkRequisition *requisition);
static void gtk_box_size_allocate (GtkWidget *widget,
GtkAllocation *allocation);
static void gtk_box_add (GtkContainer *container,
GtkWidget *widget);
static void gtk_box_remove (GtkContainer *container,
GtkWidget *widget);
static void gtk_box_forall (GtkContainer *container,
gboolean include_internals,
GtkCallback callback,
gpointer callback_data);
static void gtk_box_set_child_property (GtkContainer *container,
GtkWidget *child,
guint property_id,
const GValue *value,
GParamSpec *pspec);
static void gtk_box_get_child_property (GtkContainer *container,
GtkWidget *child,
guint property_id,
GValue *value,
GParamSpec *pspec);
static GType gtk_box_child_type (GtkContainer *container);
G_DEFINE_ABSTRACT_TYPE_WITH_CODE (GtkBox, gtk_box, GTK_TYPE_CONTAINER,
G_IMPLEMENT_INTERFACE (GTK_TYPE_ORIENTABLE,
NULL));
static void
gtk_box_class_init (GtkBoxClass *class)
{
GObjectClass *object_class = G_OBJECT_CLASS (class);
GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (class);
GtkContainerClass *container_class = GTK_CONTAINER_CLASS (class);
object_class->set_property = gtk_box_set_property;
object_class->get_property = gtk_box_get_property;
widget_class->size_request = gtk_box_size_request;
widget_class->size_allocate = gtk_box_size_allocate;
container_class->add = gtk_box_add;
container_class->remove = gtk_box_remove;
container_class->forall = gtk_box_forall;
container_class->child_type = gtk_box_child_type;
container_class->set_child_property = gtk_box_set_child_property;
container_class->get_child_property = gtk_box_get_child_property;
g_object_class_override_property (object_class,
PROP_ORIENTATION,
"orientation");
g_object_class_install_property (object_class,
PROP_SPACING,
g_param_spec_int ("spacing",
P_("Spacing"),
P_("The amount of space between children"),
0,
G_MAXINT,
0,
GTK_PARAM_READWRITE));
g_object_class_install_property (object_class,
PROP_HOMOGENEOUS,
g_param_spec_boolean ("homogeneous",
P_("Homogeneous"),
P_("Whether the children should all be the same size"),
FALSE,
GTK_PARAM_READWRITE));
gtk_container_class_install_child_property (container_class,
CHILD_PROP_EXPAND,
g_param_spec_boolean ("expand",
P_("Expand"),
P_("Whether the child should receive extra space when the parent grows"),
TRUE,
GTK_PARAM_READWRITE));
gtk_container_class_install_child_property (container_class,
CHILD_PROP_FILL,
g_param_spec_boolean ("fill",
P_("Fill"),
P_("Whether extra space given to the child should be allocated to the child or used as padding"),
TRUE,
GTK_PARAM_READWRITE));
gtk_container_class_install_child_property (container_class,
CHILD_PROP_PADDING,
g_param_spec_uint ("padding",
P_("Padding"),
P_("Extra space to put between the child and its neighbors, in pixels"),
0, G_MAXINT, 0,
GTK_PARAM_READWRITE));
gtk_container_class_install_child_property (container_class,
CHILD_PROP_PACK_TYPE,
g_param_spec_enum ("pack-type",
P_("Pack type"),
P_("A GtkPackType indicating whether the child is packed with reference to the start or end of the parent"),
GTK_TYPE_PACK_TYPE, GTK_PACK_START,
GTK_PARAM_READWRITE));
gtk_container_class_install_child_property (container_class,
CHILD_PROP_POSITION,
g_param_spec_int ("position",
P_("Position"),
P_("The index of the child in the parent"),
-1, G_MAXINT, 0,
GTK_PARAM_READWRITE));
g_type_class_add_private (object_class, sizeof (GtkBoxPrivate));
}
static void
gtk_box_init (GtkBox *box)
{
GtkBoxPrivate *private = GTK_BOX_GET_PRIVATE (box);
gtk_widget_set_has_window (GTK_WIDGET (box), FALSE);
gtk_widget_set_redraw_on_allocate (GTK_WIDGET (box), FALSE);
box->children = NULL;
box->spacing = 0;
box->homogeneous = FALSE;
private->orientation = GTK_ORIENTATION_HORIZONTAL;
private->default_expand = FALSE;
private->spacing_set = FALSE;
}
static void
gtk_box_set_property (GObject *object,
guint prop_id,
const GValue *value,
GParamSpec *pspec)
{
GtkBox *box = GTK_BOX (object);
GtkBoxPrivate *private = GTK_BOX_GET_PRIVATE (box);
switch (prop_id)
{
case PROP_ORIENTATION:
private->orientation = g_value_get_enum (value);
gtk_widget_queue_resize (GTK_WIDGET (box));
break;
case PROP_SPACING:
gtk_box_set_spacing (box, g_value_get_int (value));
break;
case PROP_HOMOGENEOUS:
gtk_box_set_homogeneous (box, g_value_get_boolean (value));
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gtk_box_get_property (GObject *object,
guint prop_id,
GValue *value,
GParamSpec *pspec)
{
GtkBox *box = GTK_BOX (object);
GtkBoxPrivate *private = GTK_BOX_GET_PRIVATE (box);
switch (prop_id)
{
case PROP_ORIENTATION:
g_value_set_enum (value, private->orientation);
break;
case PROP_SPACING:
g_value_set_int (value, box->spacing);
break;
case PROP_HOMOGENEOUS:
g_value_set_boolean (value, box->homogeneous);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gtk_box_size_request (GtkWidget *widget,
GtkRequisition *requisition)
{
GtkBox *box = GTK_BOX (widget);
GtkBoxPrivate *private = GTK_BOX_GET_PRIVATE (box);
GtkBoxChild *child;
GList *children;
gint nvis_children;
gint width;
gint height;
requisition->width = 0;
requisition->height = 0;
nvis_children = 0;
children = box->children;
while (children)
{
child = children->data;
children = children->next;
if (gtk_widget_get_visible (child->widget))
{
GtkRequisition child_requisition;
gtk_widget_size_request (child->widget, &child_requisition);
if (box->homogeneous)
{
width = child_requisition.width + child->padding * 2;
height = child_requisition.height + child->padding * 2;
if (private->orientation == GTK_ORIENTATION_HORIZONTAL)
requisition->width = MAX (requisition->width, width);
else
requisition->height = MAX (requisition->height, height);
}
else
{
if (private->orientation == GTK_ORIENTATION_HORIZONTAL)
requisition->width += child_requisition.width + child->padding * 2;
else
requisition->height += child_requisition.height + child->padding * 2;
}
if (private->orientation == GTK_ORIENTATION_HORIZONTAL)
requisition->height = MAX (requisition->height, child_requisition.height);
else
requisition->width = MAX (requisition->width, child_requisition.width);
nvis_children += 1;
}
}
if (nvis_children > 0)
{
if (box->homogeneous)
{
if (private->orientation == GTK_ORIENTATION_HORIZONTAL)
requisition->width *= nvis_children;
else
requisition->height *= nvis_children;
}
if (private->orientation == GTK_ORIENTATION_HORIZONTAL)
requisition->width += (nvis_children - 1) * box->spacing;
else
requisition->height += (nvis_children - 1) * box->spacing;
}
requisition->width += GTK_CONTAINER (box)->border_width * 2;
requisition->height += GTK_CONTAINER (box)->border_width * 2;
}
static void
gtk_box_size_allocate (GtkWidget *widget,
GtkAllocation *allocation)
{
GtkBox *box = GTK_BOX (widget);
GtkBoxPrivate *private = GTK_BOX_GET_PRIVATE (box);
GtkBoxChild *child;
GList *children;
GtkAllocation child_allocation;
gint nvis_children = 0;
gint nexpand_children = 0;
gint child_width = 0;
gint child_height = 0;
gint width = 0;
gint height = 0;
gint extra = 0;
gint x = 0;
gint y = 0;
GtkTextDirection direction;
widget->allocation = *allocation;
direction = gtk_widget_get_direction (widget);
for (children = box->children; children; children = children->next)
{
child = children->data;
if (gtk_widget_get_visible (child->widget))
{
nvis_children += 1;
if (child->expand)
nexpand_children += 1;
}
}
if (nvis_children > 0)
{
if (box->homogeneous)
{
if (private->orientation == GTK_ORIENTATION_HORIZONTAL)
{
width = (allocation->width -
GTK_CONTAINER (box)->border_width * 2 -
(nvis_children - 1) * box->spacing);
extra = width / nvis_children;
}
else
{
height = (allocation->height -
GTK_CONTAINER (box)->border_width * 2 -
(nvis_children - 1) * box->spacing);
extra = height / nvis_children;
}
}
else if (nexpand_children > 0)
{
if (private->orientation == GTK_ORIENTATION_HORIZONTAL)
{
width = (gint) allocation->width - (gint) widget->requisition.width;
extra = width / nexpand_children;
}
else
{
height = (gint) allocation->height - (gint) widget->requisition.height;
extra = height / nexpand_children;
}
}
if (private->orientation == GTK_ORIENTATION_HORIZONTAL)
{
x = allocation->x + GTK_CONTAINER (box)->border_width;
child_allocation.y = allocation->y + GTK_CONTAINER (box)->border_width;
child_allocation.height = MAX (1, (gint) allocation->height - (gint) GTK_CONTAINER (box)->border_width * 2);
}
else
{
y = allocation->y + GTK_CONTAINER (box)->border_width;
child_allocation.x = allocation->x + GTK_CONTAINER (box)->border_width;
child_allocation.width = MAX (1, (gint) allocation->width - (gint) GTK_CONTAINER (box)->border_width * 2);
}
children = box->children;
while (children)
{
child = children->data;
children = children->next;
if ((child->pack == GTK_PACK_START) && gtk_widget_get_visible (child->widget))
{
if (box->homogeneous)
{
if (nvis_children == 1)
{
child_width = width;
child_height = height;
}
else
{
child_width = extra;
child_height = extra;
}
nvis_children -= 1;
width -= extra;
height -= extra;
}
else
{
GtkRequisition child_requisition;
gtk_widget_get_child_requisition (child->widget, &child_requisition);
child_width = child_requisition.width + child->padding * 2;
child_height = child_requisition.height + child->padding * 2;
if (child->expand)
{
if (nexpand_children == 1)
{
child_width += width;
child_height += height;
}
else
{
child_width += extra;
child_height += extra;
}
nexpand_children -= 1;
width -= extra;
height -= extra;
}
}
if (child->fill)
{
if (private->orientation == GTK_ORIENTATION_HORIZONTAL)
{
child_allocation.width = MAX (1, (gint) child_width - (gint) child->padding * 2);
child_allocation.x = x + child->padding;
}
else
{
child_allocation.height = MAX (1, child_height - (gint)child->padding * 2);
child_allocation.y = y + child->padding;
}
}
else
{
GtkRequisition child_requisition;
gtk_widget_get_child_requisition (child->widget, &child_requisition);
if (private->orientation == GTK_ORIENTATION_HORIZONTAL)
{
child_allocation.width = child_requisition.width;
child_allocation.x = x + (child_width - child_allocation.width) / 2;
}
else
{
child_allocation.height = child_requisition.height;
child_allocation.y = y + (child_height - child_allocation.height) / 2;
}
}
if (direction == GTK_TEXT_DIR_RTL &&
private->orientation == GTK_ORIENTATION_HORIZONTAL)
{
child_allocation.x = allocation->x + allocation->width - (child_allocation.x - allocation->x) - child_allocation.width;
}
gtk_widget_size_allocate (child->widget, &child_allocation);
x += child_width + box->spacing;
y += child_height + box->spacing;
}
}
x = allocation->x + allocation->width - GTK_CONTAINER (box)->border_width;
y = allocation->y + allocation->height - GTK_CONTAINER (box)->border_width;
children = box->children;
while (children)
{
child = children->data;
children = children->next;
if ((child->pack == GTK_PACK_END) && gtk_widget_get_visible (child->widget))
{
GtkRequisition child_requisition;
gtk_widget_get_child_requisition (child->widget, &child_requisition);
if (box->homogeneous)
{
if (nvis_children == 1)
{
child_width = width;
child_height = height;
}
else
{
child_width = extra;
child_height = extra;
}
nvis_children -= 1;
width -= extra;
height -= extra;
}
else
{
child_width = child_requisition.width + child->padding * 2;
child_height = child_requisition.height + child->padding * 2;
if (child->expand)
{
if (nexpand_children == 1)
{
child_width += width;
child_height += height;
}
else
{
child_width += extra;
child_height += extra;
}
nexpand_children -= 1;
width -= extra;
height -= extra;
}
}
if (child->fill)
{
if (private->orientation == GTK_ORIENTATION_HORIZONTAL)
{
child_allocation.width = MAX (1, (gint)child_width - (gint)child->padding * 2);
child_allocation.x = x + child->padding - child_width;
}
else
{
child_allocation.height = MAX (1, child_height - (gint)child->padding * 2);
child_allocation.y = y + child->padding - child_height;
}
}
else
{
if (private->orientation == GTK_ORIENTATION_HORIZONTAL)
{
child_allocation.width = child_requisition.width;
child_allocation.x = x + (child_width - child_allocation.width) / 2 - child_width;
}
else
{
child_allocation.height = child_requisition.height;
child_allocation.y = y + (child_height - child_allocation.height) / 2 - child_height;
}
}
if (direction == GTK_TEXT_DIR_RTL &&
private->orientation == GTK_ORIENTATION_HORIZONTAL)
{
child_allocation.x = allocation->x + allocation->width - (child_allocation.x - allocation->x) - child_allocation.width;
}
gtk_widget_size_allocate (child->widget, &child_allocation);
x -= (child_width + box->spacing);
y -= (child_height + box->spacing);
}
}
}
}
static GType
gtk_box_child_type (GtkContainer *container)
{
return GTK_TYPE_WIDGET;
}
static void
gtk_box_set_child_property (GtkContainer *container,
GtkWidget *child,
guint property_id,
const GValue *value,
GParamSpec *pspec)
{
gboolean expand = 0;
gboolean fill = 0;
guint padding = 0;
GtkPackType pack_type = 0;
if (property_id != CHILD_PROP_POSITION)
gtk_box_query_child_packing (GTK_BOX (container),
child,
&expand,
&fill,
&padding,
&pack_type);
switch (property_id)
{
case CHILD_PROP_EXPAND:
gtk_box_set_child_packing (GTK_BOX (container),
child,
g_value_get_boolean (value),
fill,
padding,
pack_type);
break;
case CHILD_PROP_FILL:
gtk_box_set_child_packing (GTK_BOX (container),
child,
expand,
g_value_get_boolean (value),
padding,
pack_type);
break;
case CHILD_PROP_PADDING:
gtk_box_set_child_packing (GTK_BOX (container),
child,
expand,
fill,
g_value_get_uint (value),
pack_type);
break;
case CHILD_PROP_PACK_TYPE:
gtk_box_set_child_packing (GTK_BOX (container),
child,
expand,
fill,
padding,
g_value_get_enum (value));
break;
case CHILD_PROP_POSITION:
gtk_box_reorder_child (GTK_BOX (container),
child,
g_value_get_int (value));
break;
default:
GTK_CONTAINER_WARN_INVALID_CHILD_PROPERTY_ID (container, property_id, pspec);
break;
}
}
static void
gtk_box_get_child_property (GtkContainer *container,
GtkWidget *child,
guint property_id,
GValue *value,
GParamSpec *pspec)
{
gboolean expand = 0;
gboolean fill = 0;
guint padding = 0;
GtkPackType pack_type = 0;
GList *list;
if (property_id != CHILD_PROP_POSITION)
gtk_box_query_child_packing (GTK_BOX (container),
child,
&expand,
&fill,
&padding,
&pack_type);
switch (property_id)
{
guint i;
case CHILD_PROP_EXPAND:
g_value_set_boolean (value, expand);
break;
case CHILD_PROP_FILL:
g_value_set_boolean (value, fill);
break;
case CHILD_PROP_PADDING:
g_value_set_uint (value, padding);
break;
case CHILD_PROP_PACK_TYPE:
g_value_set_enum (value, pack_type);
break;
case CHILD_PROP_POSITION:
i = 0;
for (list = GTK_BOX (container)->children; list; list = list->next)
{
GtkBoxChild *child_entry;
child_entry = list->data;
if (child_entry->widget == child)
break;
i++;
}
g_value_set_int (value, list ? i : -1);
break;
default:
GTK_CONTAINER_WARN_INVALID_CHILD_PROPERTY_ID (container, property_id, pspec);
break;
}
}
static void
gtk_box_pack (GtkBox *box,
GtkWidget *child,
gboolean expand,
gboolean fill,
guint padding,
GtkPackType pack_type)
{
GtkBoxChild *child_info;
g_return_if_fail (GTK_IS_BOX (box));
g_return_if_fail (GTK_IS_WIDGET (child));
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 = pack_type;
child_info->is_secondary = FALSE;
box->children = g_list_append (box->children, child_info);
gtk_widget_freeze_child_notify (child);
gtk_widget_set_parent (child, GTK_WIDGET (box));
gtk_widget_child_notify (child, "expand");
gtk_widget_child_notify (child, "fill");
gtk_widget_child_notify (child, "padding");
gtk_widget_child_notify (child, "pack-type");
gtk_widget_child_notify (child, "position");
gtk_widget_thaw_child_notify (child);
}
/**
* gtk_box_new:
* @orientation: the box' orientation.
* @homogeneous: %TRUE if all children are to be given equal space allocations.
* @spacing: the number of pixels to place by default between children.
*
* Creates a new #GtkHBox.
*
* Return value: a new #GtkHBox.
*
* Since: 2.16
**/
GtkWidget*
_gtk_box_new (GtkOrientation orientation,
gboolean homogeneous,
gint spacing)
{
return g_object_new (GTK_TYPE_BOX,
"orientation", orientation,
"spacing", spacing,
"homogeneous", homogeneous ? TRUE : FALSE,
NULL);
}
/**
* gtk_box_pack_start:
* @box: a #GtkBox
* @child: the #GtkWidget to be added to @box
* @expand: %TRUE if the new child is to be given extra space allocated to
* @box. The extra space will be divided evenly between all children of
* @box that use this option
* @fill: %TRUE if space given to @child by the @expand option is
* actually allocated to @child, rather than just padding it. This
* parameter has no effect if @expand is set to %FALSE. A child is
* always allocated the full height of a #GtkHBox and the full width
* of a #GtkVBox. This option affects the other dimension
* @padding: extra space in pixels to put between this child and its
* neighbors, over and above the global amount specified by
* #GtkBox:spacing property. If @child is a widget at one of the
* reference ends of @box, then @padding pixels are also put between
* @child and the reference edge of @box
*
* Adds @child to @box, packed with reference to the start of @box.
* The @child is packed after any other child packed with reference
* to the start of @box.
*/
void
gtk_box_pack_start (GtkBox *box,
GtkWidget *child,
gboolean expand,
gboolean fill,
guint padding)
{
gtk_box_pack (box, child, expand, fill, padding, GTK_PACK_START);
}
/**
* gtk_box_pack_end:
* @box: a #GtkBox
* @child: the #GtkWidget to be added to @box
* @expand: %TRUE if the new child is to be given extra space allocated
* to @box. The extra space will be divided evenly between all children
* of @box that use this option
* @fill: %TRUE if space given to @child by the @expand option is
* actually allocated to @child, rather than just padding it. This
* parameter has no effect if @expand is set to %FALSE. A child is
* always allocated the full height of a #GtkHBox and the full width
* of a #GtkVBox. This option affects the other dimension
* @padding: extra space in pixels to put between this child and its
* neighbors, over and above the global amount specified by
* #GtkBox:spacing property. If @child is a widget at one of the
* reference ends of @box, then @padding pixels are also put between
* @child and the reference edge of @box
*
* Adds @child to @box, packed with reference to the end of @box.
* The @child is packed after (away from end of) any other child
* packed with reference to the end of @box.
*/
void
gtk_box_pack_end (GtkBox *box,
GtkWidget *child,
gboolean expand,
gboolean fill,
guint padding)
{
gtk_box_pack (box, child, expand, fill, padding, GTK_PACK_END);
}
/**
* gtk_box_pack_start_defaults:
* @box: a #GtkBox
* @widget: the #GtkWidget to be added to @box
*
* Adds @widget to @box, packed with reference to the start of @box.
* The child is packed after any other child packed with reference
* to the start of @box.
*
* Parameters for how to pack the child @widget, #GtkBox:expand,
* #GtkBox:fill and #GtkBox:padding, are given their default
* values, %TRUE, %TRUE, and 0, respectively.
*
* Deprecated: 2.14: Use gtk_box_pack_start()
*/
void
gtk_box_pack_start_defaults (GtkBox *box,
GtkWidget *child)
{
gtk_box_pack_start (box, child, TRUE, TRUE, 0);
}
/**
* gtk_box_pack_end_defaults:
* @box: a #GtkBox
* @widget: the #GtkWidget to be added to @box
*
* Adds @widget to @box, packed with reference to the end of @box.
* The child is packed after any other child packed with reference
* to the start of @box.
*
* Parameters for how to pack the child @widget, #GtkBox:expand,
* #GtkBox:fill and #GtkBox:padding, are given their default
* values, %TRUE, %TRUE, and 0, respectively.
*
* Deprecated: 2.14: Use gtk_box_pack_end()
*/
void
gtk_box_pack_end_defaults (GtkBox *box,
GtkWidget *child)
{
gtk_box_pack_end (box, child, TRUE, TRUE, 0);
}
/**
* gtk_box_set_homogeneous:
* @box: a #GtkBox
* @homogeneous: a boolean value, %TRUE to create equal allotments,
* %FALSE for variable allotments
*
* Sets the #GtkBox:homogeneous property of @box, controlling
* whether or not all children of @box are given equal space
* in the box.
*/
void
gtk_box_set_homogeneous (GtkBox *box,
gboolean homogeneous)
{
g_return_if_fail (GTK_IS_BOX (box));
if ((homogeneous ? TRUE : FALSE) != box->homogeneous)
{
box->homogeneous = homogeneous ? TRUE : FALSE;
g_object_notify (G_OBJECT (box), "homogeneous");
gtk_widget_queue_resize (GTK_WIDGET (box));
}
}
/**
* gtk_box_get_homogeneous:
* @box: a #GtkBox
*
* Returns whether the box is homogeneous (all children are the
* same size). See gtk_box_set_homogeneous().
*
* Return value: %TRUE if the box is homogeneous.
**/
gboolean
gtk_box_get_homogeneous (GtkBox *box)
{
g_return_val_if_fail (GTK_IS_BOX (box), FALSE);
return box->homogeneous;
}
/**
* gtk_box_set_spacing:
* @box: a #GtkBox
* @spacing: the number of pixels to put between children
*
* Sets the #GtkBox:spacing property of @box, which is the
* number of pixels to place between children of @box.
*/
void
gtk_box_set_spacing (GtkBox *box,
gint spacing)
{
g_return_if_fail (GTK_IS_BOX (box));
if (spacing != box->spacing)
{
box->spacing = spacing;
_gtk_box_set_spacing_set (box, TRUE);
g_object_notify (G_OBJECT (box), "spacing");
gtk_widget_queue_resize (GTK_WIDGET (box));
}
}
/**
* gtk_box_get_spacing:
* @box: a #GtkBox
*
* Gets the value set by gtk_box_set_spacing().
*
* Return value: spacing between children
**/
gint
gtk_box_get_spacing (GtkBox *box)
{
g_return_val_if_fail (GTK_IS_BOX (box), 0);
return box->spacing;
}
void
_gtk_box_set_spacing_set (GtkBox *box,
gboolean spacing_set)
{
GtkBoxPrivate *private;
g_return_if_fail (GTK_IS_BOX (box));
private = GTK_BOX_GET_PRIVATE (box);
private->spacing_set = spacing_set ? TRUE : FALSE;
}
gboolean
_gtk_box_get_spacing_set (GtkBox *box)
{
GtkBoxPrivate *private;
g_return_val_if_fail (GTK_IS_BOX (box), FALSE);
private = GTK_BOX_GET_PRIVATE (box);
return private->spacing_set;
}
/**
* gtk_box_reorder_child:
* @box: a #GtkBox
* @child: the #GtkWidget to move
* @position: the new position for @child in the list of children
* of @box, starting from 0. If negative, indicates the end of
* the list
*
* Moves @child to a new @position in the list of @box children.
* The list is the <structfield>children</structfield> field of
* #GtkBox-struct, and contains both widgets packed #GTK_PACK_START
* as well as widgets packed #GTK_PACK_END, in the order that these
* widgets were added to @box.
*
* A widget's position in the @box children list determines where
* the widget is packed into @box. A child widget at some position
* in the list will be packed just after all other widgets of the
* same packing type that appear earlier in the list.
*/
void
gtk_box_reorder_child (GtkBox *box,
GtkWidget *child,
gint position)
{
GList *old_link;
GList *new_link;
GtkBoxChild *child_info = NULL;
gint old_position;
g_return_if_fail (GTK_IS_BOX (box));
g_return_if_fail (GTK_IS_WIDGET (child));
old_link = box->children;
old_position = 0;
while (old_link)
{
child_info = old_link->data;
if (child_info->widget == child)
break;
old_link = old_link->next;
old_position++;
}
g_return_if_fail (old_link != NULL);
if (position == old_position)
return;
box->children = g_list_delete_link (box->children, old_link);
if (position < 0)
new_link = NULL;
else
new_link = g_list_nth (box->children, position);
box->children = g_list_insert_before (box->children, new_link, child_info);
gtk_widget_child_notify (child, "position");
if (gtk_widget_get_visible (child)
&& gtk_widget_get_visible (GTK_WIDGET (box)))
gtk_widget_queue_resize (child);
}
/**
* gtk_box_query_child_packing:
* @box: a #GtkBox
* @child: the #GtkWidget of the child to query
* @expand: pointer to return location for #GtkBox:expand child property
* @fill: pointer to return location for #GtkBox:fill child property
* @padding: pointer to return location for #GtkBox:padding child property
* @pack_type: pointer to return location for #GtkBox:pack-type child property
*
* Obtains information about how @child is packed into @box.
*/
void
gtk_box_query_child_packing (GtkBox *box,
GtkWidget *child,
gboolean *expand,
gboolean *fill,
guint *padding,
GtkPackType *pack_type)
{
GList *list;
GtkBoxChild *child_info = NULL;
g_return_if_fail (GTK_IS_BOX (box));
g_return_if_fail (GTK_IS_WIDGET (child));
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;
}
}
/**
* gtk_box_set_child_packing:
* @box: a #GtkBox
* @child: the #GtkWidget of the child to set
* @expand: the new value of the #GtkBox:expand child property
* @fill: the new value of the #GtkBox:fill child property
* @padding: the new value of the #GtkBox:padding child property
* @pack_type: the new value of the #GtkBox:pack-type child property
*
* Sets the way @child is packed into @box.
*/
void
gtk_box_set_child_packing (GtkBox *box,
GtkWidget *child,
gboolean expand,
gboolean fill,
guint padding,
GtkPackType pack_type)
{
GList *list;
GtkBoxChild *child_info = NULL;
g_return_if_fail (GTK_IS_BOX (box));
g_return_if_fail (GTK_IS_WIDGET (child));
list = box->children;
while (list)
{
child_info = list->data;
if (child_info->widget == child)
break;
list = list->next;
}
gtk_widget_freeze_child_notify (child);
if (list)
{
child_info->expand = expand != FALSE;
gtk_widget_child_notify (child, "expand");
child_info->fill = fill != FALSE;
gtk_widget_child_notify (child, "fill");
child_info->padding = padding;
gtk_widget_child_notify (child, "padding");
if (pack_type == GTK_PACK_END)
child_info->pack = GTK_PACK_END;
else
child_info->pack = GTK_PACK_START;
gtk_widget_child_notify (child, "pack-type");
if (gtk_widget_get_visible (child)
&& gtk_widget_get_visible (GTK_WIDGET (box)))
gtk_widget_queue_resize (child);
}
gtk_widget_thaw_child_notify (child);
}
void
_gtk_box_set_old_defaults (GtkBox *box)
{
GtkBoxPrivate *private;
g_return_if_fail (GTK_IS_BOX (box));
private = GTK_BOX_GET_PRIVATE (box);
private->default_expand = TRUE;
}
static void
gtk_box_add (GtkContainer *container,
GtkWidget *widget)
{
GtkBoxPrivate *private = GTK_BOX_GET_PRIVATE (container);
gtk_box_pack_start (GTK_BOX (container), widget,
private->default_expand,
private->default_expand,
0);
}
static void
gtk_box_remove (GtkContainer *container,
GtkWidget *widget)
{
GtkBox *box = GTK_BOX (container);
GtkBoxChild *child;
GList *children;
children = box->children;
while (children)
{
child = children->data;
if (child->widget == widget)
{
gboolean was_visible;
was_visible = gtk_widget_get_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_get_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_forall (GtkContainer *container,
gboolean include_internals,
GtkCallback callback,
gpointer callback_data)
{
GtkBox *box = GTK_BOX (container);
GtkBoxChild *child;
GList *children;
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);
}
}
#define __GTK_BOX_C__
#include "gtkaliasdef.c"
View Git Blame Copy Permalink