2659 lines
78 KiB
C
2659 lines
78 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 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, see <http://www.gnu.org/licenses/>.
|
||
*/
|
||
|
||
/*
|
||
* 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/.
|
||
*/
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||
|
||
/**
|
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* SECTION:gtkbox
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* @Short_description: A container box
|
||
* @Title: GtkBox
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* @See_also: #GtkFrame, #GtkGrid, #GtkLayout
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*
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* The GtkBox widget organizes child widgets into a rectangular area.
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*
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||
* The rectangular area of a GtkBox is organized into either a single row
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||
* or a single column of child widgets depending upon the orientation.
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||
* Thus, all children of a GtkBox are allocated one dimension in common,
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* which is the height of a row, or the width of a column.
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*
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||
* GtkBox uses a notion of packing. Packing refers
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||
* to adding widgets with reference to a particular position in a
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||
* #GtkContainer. For a GtkBox, there are two reference positions: the
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||
* start and the end of the box.
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||
* For a vertical #GtkBox, the start is defined as the top of the box and
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||
* the end is defined as the bottom. For a horizontal #GtkBox the start
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||
* is defined as the left side and the end is defined as the right side.
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||
*
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||
* Use repeated calls to gtk_box_pack_start() to pack widgets into a
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||
* GtkBox from start to end. Use gtk_box_pack_end() to add widgets from
|
||
* end to start. You may intersperse these calls and add widgets from
|
||
* both ends of the same GtkBox.
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||
*
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||
* Because GtkBox is a #GtkContainer, you may also use gtk_container_add()
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||
* to insert widgets into the box, and they will be packed with the default
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||
* values for expand and fill child properties. Use gtk_container_remove()
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* to remove widgets from the GtkBox.
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||
*
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||
* Use gtk_box_set_homogeneous() to specify whether or not all children
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* of the GtkBox are forced to get the same amount of space.
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||
*
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||
* Use gtk_box_set_spacing() to determine how much space will be
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* minimally placed between all children in the GtkBox. Note that
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* spacing is added between the children, while
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* padding added by gtk_box_pack_start() or gtk_box_pack_end() is added
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* on either side of the widget it belongs to.
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*
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* Use gtk_box_reorder_child() to move a GtkBox child to a different
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* place in the box.
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*
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* Use gtk_box_set_child_packing() to reset the expand,
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* fill and padding child properties.
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* Use gtk_box_query_child_packing() to query these fields.
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*
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* Note that a single-row or single-column #GtkGrid provides exactly
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* the same functionality as #GtkBox.
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*/
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#include "config.h"
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#include "gtkbox.h"
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#include "gtkboxprivate.h"
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#include "gtkintl.h"
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#include "gtkorientable.h"
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#include "gtkorientableprivate.h"
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#include "gtkprivate.h"
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#include "gtktypebuiltins.h"
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#include "gtksizerequest.h"
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#include "gtkwidgetpath.h"
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#include "gtkwidgetprivate.h"
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#include "a11y/gtkcontaineraccessible.h"
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||
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||
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||
enum {
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||
PROP_0,
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||
PROP_SPACING,
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||
PROP_HOMOGENEOUS,
|
||
PROP_BASELINE_POSITION,
|
||
|
||
/* orientable */
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||
PROP_ORIENTATION,
|
||
LAST_PROP = PROP_ORIENTATION
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||
};
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||
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||
enum {
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||
CHILD_PROP_0,
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||
CHILD_PROP_EXPAND,
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||
CHILD_PROP_FILL,
|
||
CHILD_PROP_PADDING,
|
||
CHILD_PROP_PACK_TYPE,
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||
CHILD_PROP_POSITION
|
||
};
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||
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||
typedef struct _GtkBoxChild GtkBoxChild;
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||
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||
struct _GtkBoxPrivate
|
||
{
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||
GList *children;
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||
GtkBoxChild *center;
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||
|
||
GtkOrientation orientation;
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||
gint16 spacing;
|
||
|
||
guint default_expand : 1;
|
||
guint homogeneous : 1;
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||
guint spacing_set : 1;
|
||
guint baseline_pos : 2;
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||
};
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||
|
||
static GParamSpec *props[LAST_PROP] = { NULL, };
|
||
|
||
/*
|
||
* GtkBoxChild:
|
||
* @widget: the child widget, packed into the GtkBox.
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||
* @padding: the number of extra pixels to put between this child and its
|
||
* neighbors, set when packed, zero by default.
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||
* @expand: flag indicates whether extra space should be given to this child.
|
||
* Any extra space given to the parent GtkBox is divided up among all children
|
||
* with this attribute set to %TRUE; set when packed, %TRUE by default.
|
||
* @fill: flag indicates whether any extra space given to this child due to its
|
||
* @expand attribute being set is actually allocated to the child, rather than
|
||
* being used as padding around the widget; set when packed, %TRUE by default.
|
||
* @pack: one of #GtkPackType indicating whether the child is packed with
|
||
* reference to the start (top/left) or end (bottom/right) of the GtkBox.
|
||
*/
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||
struct _GtkBoxChild
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||
{
|
||
GtkWidget *widget;
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||
|
||
guint16 padding;
|
||
|
||
guint expand : 1;
|
||
guint fill : 1;
|
||
guint pack : 1;
|
||
};
|
||
|
||
static void gtk_box_size_allocate (GtkWidget *widget,
|
||
GtkAllocation *allocation);
|
||
static gboolean gtk_box_draw (GtkWidget *widget,
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||
cairo_t *cr);
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||
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||
static void gtk_box_direction_changed (GtkWidget *widget,
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||
GtkTextDirection previous_direction);
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||
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||
static void gtk_box_set_property (GObject *object,
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||
guint prop_id,
|
||
const GValue *value,
|
||
GParamSpec *pspec);
|
||
static void gtk_box_get_property (GObject *object,
|
||
guint prop_id,
|
||
GValue *value,
|
||
GParamSpec *pspec);
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||
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,
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||
gboolean include_internals,
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||
GtkCallback callback,
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||
gpointer callback_data);
|
||
static void gtk_box_set_child_property (GtkContainer *container,
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||
GtkWidget *child,
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||
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);
|
||
static GtkWidgetPath * gtk_box_get_path_for_child
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||
(GtkContainer *container,
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||
GtkWidget *child);
|
||
|
||
|
||
static void gtk_box_get_preferred_width (GtkWidget *widget,
|
||
gint *minimum_size,
|
||
gint *natural_size);
|
||
static void gtk_box_get_preferred_height (GtkWidget *widget,
|
||
gint *minimum_size,
|
||
gint *natural_size);
|
||
static void gtk_box_get_preferred_width_for_height (GtkWidget *widget,
|
||
gint height,
|
||
gint *minimum_width,
|
||
gint *natural_width);
|
||
static void gtk_box_get_preferred_height_for_width (GtkWidget *widget,
|
||
gint width,
|
||
gint *minimum_height,
|
||
gint *natural_height);
|
||
static void gtk_box_get_preferred_height_and_baseline_for_width (GtkWidget *widget,
|
||
gint width,
|
||
gint *minimum_height,
|
||
gint *natural_height,
|
||
gint *minimum_baseline,
|
||
gint *natural_baseline);
|
||
|
||
static void gtk_box_buildable_init (GtkBuildableIface *iface);
|
||
|
||
G_DEFINE_TYPE_WITH_CODE (GtkBox, gtk_box, GTK_TYPE_CONTAINER,
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||
G_ADD_PRIVATE (GtkBox)
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||
G_IMPLEMENT_INTERFACE (GTK_TYPE_ORIENTABLE, NULL)
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||
G_IMPLEMENT_INTERFACE (GTK_TYPE_BUILDABLE, gtk_box_buildable_init))
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||
|
||
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;
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||
object_class->get_property = gtk_box_get_property;
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||
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widget_class->draw = gtk_box_draw;
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||
widget_class->size_allocate = gtk_box_size_allocate;
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||
widget_class->get_preferred_width = gtk_box_get_preferred_width;
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||
widget_class->get_preferred_height = gtk_box_get_preferred_height;
|
||
widget_class->get_preferred_height_for_width = gtk_box_get_preferred_height_for_width;
|
||
widget_class->get_preferred_height_and_baseline_for_width = gtk_box_get_preferred_height_and_baseline_for_width;
|
||
widget_class->get_preferred_width_for_height = gtk_box_get_preferred_width_for_height;
|
||
widget_class->direction_changed = gtk_box_direction_changed;
|
||
|
||
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;
|
||
container_class->get_path_for_child = gtk_box_get_path_for_child;
|
||
gtk_container_class_handle_border_width (container_class);
|
||
|
||
g_object_class_override_property (object_class,
|
||
PROP_ORIENTATION,
|
||
"orientation");
|
||
|
||
props[PROP_SPACING] =
|
||
g_param_spec_int ("spacing",
|
||
P_("Spacing"),
|
||
P_("The amount of space between children"),
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||
0, G_MAXINT, 0,
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||
GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY);
|
||
|
||
props[PROP_HOMOGENEOUS] =
|
||
g_param_spec_boolean ("homogeneous",
|
||
P_("Homogeneous"),
|
||
P_("Whether the children should all be the same size"),
|
||
FALSE,
|
||
GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY);
|
||
|
||
props[PROP_BASELINE_POSITION] =
|
||
g_param_spec_enum ("baseline-position",
|
||
P_("Baseline position"),
|
||
P_("The position of the baseline aligned widgets if extra space is available"),
|
||
GTK_TYPE_BASELINE_POSITION,
|
||
GTK_BASELINE_POSITION_CENTER,
|
||
GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY);
|
||
|
||
g_object_class_install_properties (object_class, LAST_PROP, props);
|
||
|
||
/**
|
||
* GtkBox:expand:
|
||
*
|
||
* Whether the child should receive extra space when the parent grows.
|
||
*
|
||
* Note that the default value for this property is %FALSE for GtkBox,
|
||
* but #GtkHBox, #GtkVBox and other subclasses use the old default
|
||
* of %TRUE.
|
||
*
|
||
* Note that the #GtkWidget:halign, #GtkWidget:valign, #GtkWidget:hexpand
|
||
* and #GtkWidget:vexpand properties are the preferred way to influence
|
||
* child size allocation in containers.
|
||
*
|
||
* In contrast to #GtkWidget:hexpand, the expand child property does
|
||
* not cause the box to expand itself.
|
||
*/
|
||
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"),
|
||
FALSE,
|
||
GTK_PARAM_READWRITE));
|
||
|
||
/**
|
||
* GtkBox:fill:
|
||
*
|
||
* Whether the child should receive extra space when the parent grows.
|
||
*
|
||
* Note that the #GtkWidget:halign, #GtkWidget:valign, #GtkWidget:hexpand
|
||
* and #GtkWidget:vexpand properties are the preferred way to influence
|
||
* child size allocation in containers.
|
||
*/
|
||
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));
|
||
|
||
gtk_widget_class_set_accessible_role (widget_class, ATK_ROLE_FILLER);
|
||
}
|
||
|
||
static void
|
||
gtk_box_init (GtkBox *box)
|
||
{
|
||
GtkBoxPrivate *private;
|
||
|
||
box->priv = gtk_box_get_instance_private (box);
|
||
private = box->priv;
|
||
|
||
gtk_widget_set_has_window (GTK_WIDGET (box), FALSE);
|
||
gtk_widget_set_redraw_on_allocate (GTK_WIDGET (box), FALSE);
|
||
|
||
private->orientation = GTK_ORIENTATION_HORIZONTAL;
|
||
private->children = NULL;
|
||
|
||
private->default_expand = FALSE;
|
||
private->homogeneous = FALSE;
|
||
private->spacing = 0;
|
||
private->spacing_set = FALSE;
|
||
private->baseline_pos = GTK_BASELINE_POSITION_CENTER;
|
||
|
||
_gtk_orientable_set_style_classes (GTK_ORIENTABLE (box));
|
||
}
|
||
|
||
static void
|
||
gtk_box_set_property (GObject *object,
|
||
guint prop_id,
|
||
const GValue *value,
|
||
GParamSpec *pspec)
|
||
{
|
||
GtkBox *box = GTK_BOX (object);
|
||
GtkBoxPrivate *private = box->priv;
|
||
|
||
switch (prop_id)
|
||
{
|
||
case PROP_ORIENTATION:
|
||
{
|
||
GtkOrientation orientation = g_value_get_enum (value);
|
||
if (private->orientation != orientation)
|
||
{
|
||
private->orientation = orientation;
|
||
_gtk_orientable_set_style_classes (GTK_ORIENTABLE (box));
|
||
gtk_widget_queue_resize (GTK_WIDGET (box));
|
||
g_object_notify (object, "orientation");
|
||
}
|
||
}
|
||
break;
|
||
case PROP_SPACING:
|
||
gtk_box_set_spacing (box, g_value_get_int (value));
|
||
break;
|
||
case PROP_BASELINE_POSITION:
|
||
gtk_box_set_baseline_position (box, g_value_get_enum (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 = box->priv;
|
||
|
||
switch (prop_id)
|
||
{
|
||
case PROP_ORIENTATION:
|
||
g_value_set_enum (value, private->orientation);
|
||
break;
|
||
case PROP_SPACING:
|
||
g_value_set_int (value, private->spacing);
|
||
break;
|
||
case PROP_BASELINE_POSITION:
|
||
g_value_set_enum (value, private->baseline_pos);
|
||
break;
|
||
case PROP_HOMOGENEOUS:
|
||
g_value_set_boolean (value, private->homogeneous);
|
||
break;
|
||
default:
|
||
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
|
||
break;
|
||
}
|
||
}
|
||
|
||
static gboolean
|
||
gtk_box_draw (GtkWidget *widget,
|
||
cairo_t *cr)
|
||
{
|
||
GtkStyleContext *context;
|
||
GtkAllocation alloc;
|
||
|
||
context = gtk_widget_get_style_context (widget);
|
||
gtk_widget_get_allocation (widget, &alloc);
|
||
|
||
gtk_render_background (context, cr, 0, 0, alloc.width, alloc.height);
|
||
gtk_render_frame (context, cr, 0, 0, alloc.width, alloc.height);
|
||
|
||
return GTK_WIDGET_CLASS (gtk_box_parent_class)->draw (widget, cr);
|
||
}
|
||
|
||
static void
|
||
count_expand_children (GtkBox *box,
|
||
gint *visible_children,
|
||
gint *expand_children)
|
||
{
|
||
GtkBoxPrivate *private = box->priv;
|
||
GList *children;
|
||
GtkBoxChild *child;
|
||
|
||
*visible_children = *expand_children = 0;
|
||
|
||
for (children = private->children; children; children = children->next)
|
||
{
|
||
child = children->data;
|
||
|
||
if (gtk_widget_get_visible (child->widget))
|
||
{
|
||
*visible_children += 1;
|
||
if (child->expand || gtk_widget_compute_expand (child->widget, private->orientation))
|
||
*expand_children += 1;
|
||
}
|
||
}
|
||
}
|
||
|
||
static void
|
||
gtk_box_size_allocate_no_center (GtkWidget *widget,
|
||
GtkAllocation *allocation)
|
||
{
|
||
GtkBox *box = GTK_BOX (widget);
|
||
GtkBoxPrivate *private = box->priv;
|
||
GtkBoxChild *child;
|
||
GList *children;
|
||
gint nvis_children;
|
||
gint nexpand_children;
|
||
|
||
GtkTextDirection direction;
|
||
GtkAllocation child_allocation;
|
||
GtkRequestedSize *sizes;
|
||
gint child_minimum_baseline, child_natural_baseline;
|
||
gint minimum_above, natural_above;
|
||
gint minimum_below, natural_below;
|
||
gboolean have_baseline;
|
||
gint baseline;
|
||
|
||
GtkPackType packing;
|
||
|
||
gint size;
|
||
gint extra;
|
||
gint n_extra_widgets = 0; /* Number of widgets that receive 1 extra px */
|
||
gint x = 0, y = 0, i;
|
||
gint child_size;
|
||
|
||
|
||
gtk_widget_set_allocation (widget, allocation);
|
||
|
||
count_expand_children (box, &nvis_children, &nexpand_children);
|
||
|
||
/* If there is no visible child, simply return. */
|
||
if (nvis_children <= 0)
|
||
return;
|
||
|
||
direction = gtk_widget_get_direction (widget);
|
||
sizes = g_newa (GtkRequestedSize, nvis_children);
|
||
|
||
if (private->orientation == GTK_ORIENTATION_HORIZONTAL)
|
||
size = allocation->width - (nvis_children - 1) * private->spacing;
|
||
else
|
||
size = allocation->height - (nvis_children - 1) * private->spacing;
|
||
|
||
have_baseline = FALSE;
|
||
minimum_above = natural_above = 0;
|
||
minimum_below = natural_below = 0;
|
||
|
||
/* Retrieve desired size for visible children. */
|
||
for (i = 0, children = private->children; children; children = children->next)
|
||
{
|
||
child = children->data;
|
||
|
||
if (!gtk_widget_get_visible (child->widget))
|
||
continue;
|
||
|
||
if (private->orientation == GTK_ORIENTATION_HORIZONTAL)
|
||
gtk_widget_get_preferred_width_for_height (child->widget,
|
||
allocation->height,
|
||
&sizes[i].minimum_size,
|
||
&sizes[i].natural_size);
|
||
else
|
||
gtk_widget_get_preferred_height_and_baseline_for_width (child->widget,
|
||
allocation->width,
|
||
&sizes[i].minimum_size,
|
||
&sizes[i].natural_size,
|
||
NULL, NULL);
|
||
|
||
/* Assert the api is working properly */
|
||
if (sizes[i].minimum_size < 0)
|
||
g_error ("GtkBox child %s minimum %s: %d < 0 for %s %d",
|
||
gtk_widget_get_name (GTK_WIDGET (child->widget)),
|
||
(private->orientation == GTK_ORIENTATION_HORIZONTAL) ? "width" : "height",
|
||
sizes[i].minimum_size,
|
||
(private->orientation == GTK_ORIENTATION_HORIZONTAL) ? "height" : "width",
|
||
(private->orientation == GTK_ORIENTATION_HORIZONTAL) ? allocation->height : allocation->width);
|
||
|
||
if (sizes[i].natural_size < sizes[i].minimum_size)
|
||
g_error ("GtkBox child %s natural %s: %d < minimum %d for %s %d",
|
||
gtk_widget_get_name (GTK_WIDGET (child->widget)),
|
||
(private->orientation == GTK_ORIENTATION_HORIZONTAL) ? "width" : "height",
|
||
sizes[i].natural_size,
|
||
sizes[i].minimum_size,
|
||
(private->orientation == GTK_ORIENTATION_HORIZONTAL) ? "height" : "width",
|
||
(private->orientation == GTK_ORIENTATION_HORIZONTAL) ? allocation->height : allocation->width);
|
||
|
||
size -= sizes[i].minimum_size;
|
||
size -= child->padding * 2;
|
||
|
||
sizes[i].data = child;
|
||
|
||
i++;
|
||
}
|
||
|
||
if (private->homogeneous)
|
||
{
|
||
/* If were homogenous we still need to run the above loop to get the
|
||
* minimum sizes for children that are not going to fill
|
||
*/
|
||
if (private->orientation == GTK_ORIENTATION_HORIZONTAL)
|
||
size = allocation->width - (nvis_children - 1) * private->spacing;
|
||
else
|
||
size = allocation->height - (nvis_children - 1) * private->spacing;
|
||
|
||
extra = size / nvis_children;
|
||
n_extra_widgets = size % nvis_children;
|
||
}
|
||
else
|
||
{
|
||
/* Bring children up to size first */
|
||
size = gtk_distribute_natural_allocation (MAX (0, size), nvis_children, sizes);
|
||
|
||
/* Calculate space which hasn't distributed yet,
|
||
* and is available for expanding children.
|
||
*/
|
||
if (nexpand_children > 0)
|
||
{
|
||
extra = size / nexpand_children;
|
||
n_extra_widgets = size % nexpand_children;
|
||
}
|
||
else
|
||
extra = 0;
|
||
}
|
||
|
||
/* Allocate child sizes. */
|
||
for (packing = GTK_PACK_START; packing <= GTK_PACK_END; ++packing)
|
||
{
|
||
for (i = 0, children = private->children;
|
||
children;
|
||
children = children->next)
|
||
{
|
||
child = children->data;
|
||
|
||
/* If widget is not visible, skip it. */
|
||
if (!gtk_widget_get_visible (child->widget))
|
||
continue;
|
||
|
||
/* If widget is packed differently skip it, but still increment i,
|
||
* since widget is visible and will be handled in next loop iteration.
|
||
*/
|
||
if (child->pack != packing)
|
||
{
|
||
i++;
|
||
continue;
|
||
}
|
||
|
||
/* Assign the child's size. */
|
||
if (private->homogeneous)
|
||
{
|
||
child_size = extra;
|
||
|
||
if (n_extra_widgets > 0)
|
||
{
|
||
child_size++;
|
||
n_extra_widgets--;
|
||
}
|
||
}
|
||
else
|
||
{
|
||
child_size = sizes[i].minimum_size + child->padding * 2;
|
||
|
||
if (child->expand || gtk_widget_compute_expand (child->widget, private->orientation))
|
||
{
|
||
child_size += extra;
|
||
|
||
if (n_extra_widgets > 0)
|
||
{
|
||
child_size++;
|
||
n_extra_widgets--;
|
||
}
|
||
}
|
||
}
|
||
|
||
sizes[i].natural_size = child_size;
|
||
|
||
if (private->orientation == GTK_ORIENTATION_HORIZONTAL &&
|
||
gtk_widget_get_valign_with_baseline (child->widget) == GTK_ALIGN_BASELINE)
|
||
{
|
||
int child_allocation_width;
|
||
int child_minimum_height, child_natural_height;
|
||
|
||
if (child->fill)
|
||
child_allocation_width = MAX (1, child_size - child->padding * 2);
|
||
else
|
||
child_allocation_width = sizes[i].minimum_size;
|
||
|
||
child_minimum_baseline = -1;
|
||
child_natural_baseline = -1;
|
||
gtk_widget_get_preferred_height_and_baseline_for_width (child->widget,
|
||
child_allocation_width,
|
||
&child_minimum_height, &child_natural_height,
|
||
&child_minimum_baseline, &child_natural_baseline);
|
||
|
||
if (child_minimum_baseline >= 0)
|
||
{
|
||
have_baseline = TRUE;
|
||
minimum_below = MAX (minimum_below, child_minimum_height - child_minimum_baseline);
|
||
natural_below = MAX (natural_below, child_natural_height - child_natural_baseline);
|
||
minimum_above = MAX (minimum_above, child_minimum_baseline);
|
||
natural_above = MAX (natural_above, child_natural_baseline);
|
||
}
|
||
}
|
||
|
||
i++;
|
||
}
|
||
}
|
||
|
||
baseline = gtk_widget_get_allocated_baseline (widget);
|
||
if (baseline == -1 && have_baseline)
|
||
{
|
||
gint height = MAX (1, allocation->height);
|
||
|
||
/* TODO: This is purely based on the minimum baseline, when things fit we should
|
||
use the natural one? */
|
||
|
||
switch (private->baseline_pos)
|
||
{
|
||
case GTK_BASELINE_POSITION_TOP:
|
||
baseline = minimum_above;
|
||
break;
|
||
case GTK_BASELINE_POSITION_CENTER:
|
||
baseline = minimum_above + (height - (minimum_above + minimum_below)) / 2;
|
||
break;
|
||
case GTK_BASELINE_POSITION_BOTTOM:
|
||
baseline = height - minimum_below;
|
||
break;
|
||
}
|
||
}
|
||
|
||
/* Allocate child positions. */
|
||
for (packing = GTK_PACK_START; packing <= GTK_PACK_END; ++packing)
|
||
{
|
||
if (private->orientation == GTK_ORIENTATION_HORIZONTAL)
|
||
{
|
||
child_allocation.y = allocation->y;
|
||
child_allocation.height = MAX (1, allocation->height);
|
||
if (packing == GTK_PACK_START)
|
||
x = allocation->x;
|
||
else
|
||
x = allocation->x + allocation->width;
|
||
}
|
||
else
|
||
{
|
||
child_allocation.x = allocation->x;
|
||
child_allocation.width = MAX (1, allocation->width);
|
||
if (packing == GTK_PACK_START)
|
||
y = allocation->y;
|
||
else
|
||
y = allocation->y + allocation->height;
|
||
}
|
||
|
||
for (i = 0, children = private->children;
|
||
children;
|
||
children = children->next)
|
||
{
|
||
child = children->data;
|
||
|
||
/* If widget is not visible, skip it. */
|
||
if (!gtk_widget_get_visible (child->widget))
|
||
continue;
|
||
|
||
/* If widget is packed differently skip it, but still increment i,
|
||
* since widget is visible and will be handled in next loop iteration.
|
||
*/
|
||
if (child->pack != packing)
|
||
{
|
||
i++;
|
||
continue;
|
||
}
|
||
|
||
child_size = sizes[i].natural_size;
|
||
|
||
/* Assign the child's position. */
|
||
if (private->orientation == GTK_ORIENTATION_HORIZONTAL)
|
||
{
|
||
if (child->fill)
|
||
{
|
||
child_allocation.width = MAX (1, child_size - child->padding * 2);
|
||
child_allocation.x = x + child->padding;
|
||
}
|
||
else
|
||
{
|
||
child_allocation.width = sizes[i].minimum_size;
|
||
child_allocation.x = x + (child_size - child_allocation.width) / 2;
|
||
}
|
||
|
||
if (packing == GTK_PACK_START)
|
||
{
|
||
x += child_size + private->spacing;
|
||
}
|
||
else
|
||
{
|
||
x -= child_size + private->spacing;
|
||
|
||
child_allocation.x -= child_size;
|
||
}
|
||
|
||
if (direction == GTK_TEXT_DIR_RTL)
|
||
child_allocation.x = allocation->x + allocation->width - (child_allocation.x - allocation->x) - child_allocation.width;
|
||
|
||
}
|
||
else /* (private->orientation == GTK_ORIENTATION_VERTICAL) */
|
||
{
|
||
if (child->fill)
|
||
{
|
||
child_allocation.height = MAX (1, child_size - child->padding * 2);
|
||
child_allocation.y = y + child->padding;
|
||
}
|
||
else
|
||
{
|
||
child_allocation.height = sizes[i].minimum_size;
|
||
child_allocation.y = y + (child_size - child_allocation.height) / 2;
|
||
}
|
||
|
||
if (packing == GTK_PACK_START)
|
||
{
|
||
y += child_size + private->spacing;
|
||
}
|
||
else
|
||
{
|
||
y -= child_size + private->spacing;
|
||
|
||
child_allocation.y -= child_size;
|
||
}
|
||
}
|
||
gtk_widget_size_allocate_with_baseline (child->widget, &child_allocation, baseline);
|
||
|
||
i++;
|
||
}
|
||
}
|
||
|
||
_gtk_widget_set_simple_clip (widget, NULL);
|
||
}
|
||
|
||
static void
|
||
gtk_box_size_allocate_with_center (GtkWidget *widget,
|
||
GtkAllocation *allocation)
|
||
{
|
||
GtkBox *box = GTK_BOX (widget);
|
||
GtkBoxPrivate *priv = box->priv;
|
||
GtkBoxChild *child;
|
||
GList *children;
|
||
gint nvis[2];
|
||
gint nexp[2];
|
||
GtkTextDirection direction;
|
||
GtkAllocation child_allocation;
|
||
GtkRequestedSize *sizes[2];
|
||
GtkRequestedSize center_req;
|
||
gint child_minimum_baseline, child_natural_baseline;
|
||
gint minimum_above, natural_above;
|
||
gint minimum_below, natural_below;
|
||
gboolean have_baseline;
|
||
gint baseline;
|
||
gint idx[2];
|
||
gint center_pos;
|
||
gint center_size;
|
||
gint box_size;
|
||
gint side[2];
|
||
GtkPackType packing;
|
||
gint min_size[2];
|
||
gint nat_size[2];
|
||
gint extra[2];
|
||
gint n_extra_widgets[2];
|
||
gint x = 0, y = 0, i;
|
||
gint child_size;
|
||
|
||
gtk_widget_set_allocation (widget, allocation);
|
||
|
||
nvis[0] = nvis[1] = 0;
|
||
nexp[0] = nexp[1] = 0;
|
||
for (children = priv->children; children; children = children->next)
|
||
{
|
||
child = children->data;
|
||
|
||
if (child != priv->center &&
|
||
gtk_widget_get_visible (child->widget))
|
||
{
|
||
nvis[child->pack] += 1;
|
||
if (child->expand || gtk_widget_compute_expand (child->widget, priv->orientation))
|
||
nexp[child->pack] += 1;
|
||
}
|
||
}
|
||
|
||
direction = gtk_widget_get_direction (widget);
|
||
sizes[0] = g_newa (GtkRequestedSize, nvis[0]);
|
||
sizes[1] = g_newa (GtkRequestedSize, nvis[1]);
|
||
|
||
if (priv->orientation == GTK_ORIENTATION_HORIZONTAL)
|
||
box_size = allocation->width;
|
||
else
|
||
box_size = allocation->height;
|
||
|
||
have_baseline = FALSE;
|
||
minimum_above = natural_above = 0;
|
||
minimum_below = natural_below = 0;
|
||
|
||
min_size[0] = nat_size[0] = nvis[0] * priv->spacing;
|
||
min_size[1] = nat_size[1] = nvis[1] * priv->spacing;
|
||
|
||
/* Retrieve desired size for visible children. */
|
||
idx[0] = idx[1] = 0;
|
||
for (children = priv->children; children; children = children->next)
|
||
{
|
||
GtkRequestedSize *req;
|
||
|
||
child = children->data;
|
||
|
||
if (!gtk_widget_get_visible (child->widget))
|
||
continue;
|
||
|
||
if (child == priv->center)
|
||
req = ¢er_req;
|
||
else
|
||
req = &(sizes[child->pack][idx[child->pack]]);
|
||
|
||
if (priv->orientation == GTK_ORIENTATION_HORIZONTAL)
|
||
gtk_widget_get_preferred_width_for_height (child->widget,
|
||
allocation->height,
|
||
&req->minimum_size,
|
||
&req->natural_size);
|
||
else
|
||
gtk_widget_get_preferred_height_and_baseline_for_width (child->widget,
|
||
allocation->width,
|
||
&req->minimum_size,
|
||
&req->natural_size,
|
||
NULL, NULL);
|
||
|
||
if (child != priv->center)
|
||
{
|
||
min_size[child->pack] += req->minimum_size + 2 * child->padding;
|
||
nat_size[child->pack] += req->natural_size + 2 * child->padding;
|
||
|
||
idx[child->pack] += 1;
|
||
}
|
||
|
||
req->data = child;
|
||
}
|
||
|
||
/* Determine size of center */
|
||
if (priv->center->expand)
|
||
center_size = MAX (box_size - 2 * MAX (nat_size[0], nat_size[1]), center_req.minimum_size);
|
||
else
|
||
center_size = MAX (MIN (center_req.natural_size, box_size - min_size[0] - min_size[1]), center_req.minimum_size);
|
||
|
||
if (priv->homogeneous)
|
||
{
|
||
extra[0] = ((box_size - center_size) / 2 - nvis[0] * priv->spacing) / nvis[0];
|
||
extra[1] = ((box_size - center_size) / 2 - nvis[1] * priv->spacing) / nvis[1];
|
||
extra[0] = MIN (extra[0], extra[1]);
|
||
n_extra_widgets[0] = 0;
|
||
}
|
||
else
|
||
{
|
||
for (packing = GTK_PACK_START; packing <= GTK_PACK_END; packing++)
|
||
{
|
||
gint s;
|
||
/* Distribute the remainder naturally on each side */
|
||
s = MIN ((box_size - center_size) / 2 - min_size[packing], box_size - center_size - min_size[0] - min_size[1]);
|
||
s = gtk_distribute_natural_allocation (MAX (0, s), nvis[packing], sizes[packing]);
|
||
|
||
/* Calculate space which hasn't distributed yet,
|
||
* and is available for expanding children.
|
||
*/
|
||
if (nexp[packing] > 0)
|
||
{
|
||
extra[packing] = s / nexp[packing];
|
||
n_extra_widgets[packing] = s % nexp[packing];
|
||
}
|
||
else
|
||
extra[packing] = 0;
|
||
}
|
||
}
|
||
|
||
/* Allocate child sizes. */
|
||
for (packing = GTK_PACK_START; packing <= GTK_PACK_END; ++packing)
|
||
{
|
||
for (i = 0, children = priv->children; children; children = children->next)
|
||
{
|
||
child = children->data;
|
||
|
||
/* If widget is not visible, skip it. */
|
||
if (!gtk_widget_get_visible (child->widget))
|
||
continue;
|
||
|
||
/* Skip the center widget */
|
||
if (child == priv->center)
|
||
continue;
|
||
|
||
/* If widget is packed differently, skip it. */
|
||
if (child->pack != packing)
|
||
continue;
|
||
|
||
/* Assign the child's size. */
|
||
if (priv->homogeneous)
|
||
{
|
||
child_size = extra[0];
|
||
|
||
if (n_extra_widgets[0] > 0)
|
||
{
|
||
child_size++;
|
||
n_extra_widgets[0]--;
|
||
}
|
||
}
|
||
else
|
||
{
|
||
child_size = sizes[packing][i].minimum_size + child->padding * 2;
|
||
|
||
if (child->expand || gtk_widget_compute_expand (child->widget, priv->orientation))
|
||
{
|
||
child_size += extra[packing];
|
||
|
||
if (n_extra_widgets[packing] > 0)
|
||
{
|
||
child_size++;
|
||
n_extra_widgets[packing]--;
|
||
}
|
||
}
|
||
}
|
||
|
||
sizes[packing][i].natural_size = child_size;
|
||
|
||
if (priv->orientation == GTK_ORIENTATION_HORIZONTAL &&
|
||
gtk_widget_get_valign_with_baseline (child->widget) == GTK_ALIGN_BASELINE)
|
||
{
|
||
gint child_allocation_width;
|
||
gint child_minimum_height, child_natural_height;
|
||
|
||
if (child->fill)
|
||
child_allocation_width = MAX (1, child_size - child->padding * 2);
|
||
else
|
||
child_allocation_width = sizes[packing][i].minimum_size;
|
||
|
||
child_minimum_baseline = -1;
|
||
child_natural_baseline = -1;
|
||
gtk_widget_get_preferred_height_and_baseline_for_width (child->widget,
|
||
child_allocation_width,
|
||
&child_minimum_height, &child_natural_height,
|
||
&child_minimum_baseline, &child_natural_baseline);
|
||
|
||
if (child_minimum_baseline >= 0)
|
||
{
|
||
have_baseline = TRUE;
|
||
minimum_below = MAX (minimum_below, child_minimum_height - child_minimum_baseline);
|
||
natural_below = MAX (natural_below, child_natural_height - child_natural_baseline);
|
||
minimum_above = MAX (minimum_above, child_minimum_baseline);
|
||
natural_above = MAX (natural_above, child_natural_baseline);
|
||
}
|
||
}
|
||
|
||
i++;
|
||
}
|
||
}
|
||
|
||
baseline = gtk_widget_get_allocated_baseline (widget);
|
||
if (baseline == -1 && have_baseline)
|
||
{
|
||
gint height = MAX (1, allocation->height);
|
||
|
||
/* TODO: This is purely based on the minimum baseline, when things fit we should
|
||
* use the natural one?
|
||
*/
|
||
switch (priv->baseline_pos)
|
||
{
|
||
case GTK_BASELINE_POSITION_TOP:
|
||
baseline = minimum_above;
|
||
break;
|
||
case GTK_BASELINE_POSITION_CENTER:
|
||
baseline = minimum_above + (height - (minimum_above + minimum_below)) / 2;
|
||
break;
|
||
case GTK_BASELINE_POSITION_BOTTOM:
|
||
baseline = height - minimum_below;
|
||
break;
|
||
}
|
||
}
|
||
|
||
/* Allocate child positions. */
|
||
for (packing = GTK_PACK_START; packing <= GTK_PACK_END; ++packing)
|
||
{
|
||
if (priv->orientation == GTK_ORIENTATION_HORIZONTAL)
|
||
{
|
||
child_allocation.y = allocation->y;
|
||
child_allocation.height = MAX (1, allocation->height);
|
||
if (packing == GTK_PACK_START)
|
||
x = allocation->x;
|
||
else
|
||
x = allocation->x + allocation->width;
|
||
}
|
||
else
|
||
{
|
||
child_allocation.x = allocation->x;
|
||
child_allocation.width = MAX (1, allocation->width);
|
||
if (packing == GTK_PACK_START)
|
||
y = allocation->y;
|
||
else
|
||
y = allocation->y + allocation->height;
|
||
}
|
||
|
||
for (i = 0, children = priv->children; children; children = children->next)
|
||
{
|
||
child = children->data;
|
||
|
||
/* If widget is not visible, skip it. */
|
||
if (!gtk_widget_get_visible (child->widget))
|
||
continue;
|
||
|
||
/* Skip the center widget */
|
||
if (child == priv->center)
|
||
continue;
|
||
|
||
/* If widget is packed differently, skip it. */
|
||
if (child->pack != packing)
|
||
continue;
|
||
|
||
child_size = sizes[packing][i].natural_size;
|
||
|
||
/* Assign the child's position. */
|
||
if (priv->orientation == GTK_ORIENTATION_HORIZONTAL)
|
||
{
|
||
if (child->fill)
|
||
{
|
||
child_allocation.width = MAX (1, child_size - child->padding * 2);
|
||
child_allocation.x = x + child->padding;
|
||
}
|
||
else
|
||
{
|
||
child_allocation.width = sizes[packing][i].minimum_size;
|
||
child_allocation.x = x + (child_size - child_allocation.width) / 2;
|
||
}
|
||
|
||
if (packing == GTK_PACK_START)
|
||
{
|
||
x += child_size + priv->spacing;
|
||
}
|
||
else
|
||
{
|
||
x -= child_size + priv->spacing;
|
||
child_allocation.x -= child_size;
|
||
}
|
||
|
||
if (direction == GTK_TEXT_DIR_RTL)
|
||
child_allocation.x = allocation->x + allocation->width - (child_allocation.x - allocation->x) - child_allocation.width;
|
||
|
||
}
|
||
else /* (private->orientation == GTK_ORIENTATION_VERTICAL) */
|
||
{
|
||
if (child->fill)
|
||
{
|
||
child_allocation.height = MAX (1, child_size - child->padding * 2);
|
||
child_allocation.y = y + child->padding;
|
||
}
|
||
else
|
||
{
|
||
child_allocation.height = sizes[packing][i].minimum_size;
|
||
child_allocation.y = y + (child_size - child_allocation.height) / 2;
|
||
}
|
||
|
||
if (packing == GTK_PACK_START)
|
||
{
|
||
y += child_size + priv->spacing;
|
||
}
|
||
else
|
||
{
|
||
y -= child_size + priv->spacing;
|
||
child_allocation.y -= child_size;
|
||
}
|
||
}
|
||
gtk_widget_size_allocate_with_baseline (child->widget, &child_allocation, baseline);
|
||
|
||
i++;
|
||
}
|
||
|
||
if (priv->orientation == GTK_ORIENTATION_HORIZONTAL)
|
||
side[packing] = x;
|
||
else
|
||
side[packing] = y;
|
||
}
|
||
|
||
/* Allocate the center widget */
|
||
if (priv->orientation == GTK_ORIENTATION_HORIZONTAL)
|
||
center_pos = allocation->x + (box_size - center_size) / 2;
|
||
else
|
||
center_pos = allocation->y + (box_size - center_size) / 2;
|
||
|
||
if (center_pos < side[GTK_PACK_START])
|
||
center_pos = side[GTK_PACK_START];
|
||
else if (center_pos + center_size > side[GTK_PACK_END])
|
||
center_pos = side[GTK_PACK_END] - center_size;
|
||
|
||
if (priv->orientation == GTK_ORIENTATION_HORIZONTAL)
|
||
{
|
||
child_allocation.x = center_pos;
|
||
child_allocation.width = center_size;
|
||
}
|
||
else
|
||
{
|
||
child_allocation.y = center_pos;
|
||
child_allocation.height = center_size;
|
||
}
|
||
gtk_widget_size_allocate_with_baseline (priv->center->widget, &child_allocation, baseline);
|
||
|
||
_gtk_widget_set_simple_clip (widget, NULL);
|
||
}
|
||
|
||
static void
|
||
gtk_box_size_allocate (GtkWidget *widget,
|
||
GtkAllocation *allocation)
|
||
{
|
||
GtkBox *box = GTK_BOX (widget);
|
||
|
||
if (box->priv->center &&
|
||
gtk_widget_get_visible (box->priv->center->widget))
|
||
gtk_box_size_allocate_with_center (widget, allocation);
|
||
else
|
||
gtk_box_size_allocate_no_center (widget, allocation);
|
||
}
|
||
|
||
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 = FALSE;
|
||
gboolean fill = FALSE;
|
||
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)->priv->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;
|
||
}
|
||
}
|
||
|
||
typedef struct _CountingData CountingData;
|
||
struct _CountingData {
|
||
GtkWidget *widget;
|
||
gboolean found;
|
||
guint before;
|
||
guint after;
|
||
};
|
||
|
||
static void
|
||
count_widget_position (GtkWidget *widget,
|
||
gpointer data)
|
||
{
|
||
CountingData *count = data;
|
||
|
||
if (!gtk_widget_get_visible (widget))
|
||
return;
|
||
|
||
if (count->widget == widget)
|
||
count->found = TRUE;
|
||
else if (count->found)
|
||
count->after++;
|
||
else
|
||
count->before++;
|
||
}
|
||
|
||
static gint
|
||
gtk_box_get_visible_position (GtkBox *box,
|
||
GtkWidget *child)
|
||
{
|
||
CountingData count = { child, FALSE, 0, 0 };
|
||
|
||
/* foreach iterates in visible order */
|
||
gtk_container_foreach (GTK_CONTAINER (box),
|
||
count_widget_position,
|
||
&count);
|
||
|
||
/* the child wasn't found, it's likely an internal child of some
|
||
* subclass, return -1 to indicate that there is no sibling relation
|
||
* to the regular box children
|
||
*/
|
||
if (!count.found)
|
||
return -1;
|
||
|
||
if (box->priv->orientation == GTK_ORIENTATION_HORIZONTAL &&
|
||
gtk_widget_get_direction (GTK_WIDGET (box)) == GTK_TEXT_DIR_RTL)
|
||
return count.after;
|
||
else
|
||
return count.before;
|
||
}
|
||
|
||
static GtkWidgetPath *
|
||
gtk_box_get_path_for_child (GtkContainer *container,
|
||
GtkWidget *child)
|
||
{
|
||
GtkWidgetPath *path, *sibling_path;
|
||
GtkBox *box;
|
||
GtkBoxPrivate *private;
|
||
GList *list, *children;
|
||
|
||
box = GTK_BOX (container);
|
||
private = box->priv;
|
||
|
||
path = _gtk_widget_create_path (GTK_WIDGET (container));
|
||
|
||
if (gtk_widget_get_visible (child))
|
||
{
|
||
gint position;
|
||
|
||
sibling_path = gtk_widget_path_new ();
|
||
|
||
/* get_children works in visible order */
|
||
children = gtk_container_get_children (container);
|
||
if (private->orientation == GTK_ORIENTATION_HORIZONTAL &&
|
||
gtk_widget_get_direction (GTK_WIDGET (box)) == GTK_TEXT_DIR_RTL)
|
||
children = g_list_reverse (children);
|
||
|
||
for (list = children; list; list = list->next)
|
||
{
|
||
if (!gtk_widget_get_visible (list->data))
|
||
continue;
|
||
|
||
gtk_widget_path_append_for_widget (sibling_path, list->data);
|
||
}
|
||
|
||
g_list_free (children);
|
||
|
||
position = gtk_box_get_visible_position (box, child);
|
||
|
||
if (position >= 0)
|
||
gtk_widget_path_append_with_siblings (path, sibling_path, position);
|
||
else
|
||
gtk_widget_path_append_for_widget (path, child);
|
||
|
||
gtk_widget_path_unref (sibling_path);
|
||
}
|
||
else
|
||
gtk_widget_path_append_for_widget (path, child);
|
||
|
||
return path;
|
||
}
|
||
|
||
static void
|
||
gtk_box_buildable_add_child (GtkBuildable *buildable,
|
||
GtkBuilder *builder,
|
||
GObject *child,
|
||
const gchar *type)
|
||
{
|
||
if (type && strcmp (type, "center") == 0)
|
||
gtk_box_set_center_widget (GTK_BOX (buildable), GTK_WIDGET (child));
|
||
else if (!type)
|
||
gtk_container_add (GTK_CONTAINER (buildable), GTK_WIDGET (child));
|
||
else
|
||
GTK_BUILDER_WARN_INVALID_CHILD_TYPE (GTK_BOX (buildable), type);
|
||
}
|
||
|
||
static void
|
||
gtk_box_buildable_init (GtkBuildableIface *iface)
|
||
{
|
||
iface->add_child = gtk_box_buildable_add_child;
|
||
}
|
||
|
||
static void
|
||
gtk_box_invalidate_order_foreach (GtkWidget *widget)
|
||
{
|
||
_gtk_widget_invalidate_style_context (widget, GTK_CSS_CHANGE_POSITION | GTK_CSS_CHANGE_SIBLING_POSITION);
|
||
}
|
||
|
||
static void
|
||
gtk_box_invalidate_order (GtkBox *box)
|
||
{
|
||
gtk_container_foreach (GTK_CONTAINER (box),
|
||
(GtkCallback) gtk_box_invalidate_order_foreach,
|
||
NULL);
|
||
}
|
||
|
||
static void
|
||
gtk_box_direction_changed (GtkWidget *widget,
|
||
GtkTextDirection previous_direction)
|
||
{
|
||
gtk_box_invalidate_order (GTK_BOX (widget));
|
||
}
|
||
|
||
static void
|
||
box_child_visibility_notify_cb (GObject *obj,
|
||
GParamSpec *pspec,
|
||
gpointer user_data)
|
||
{
|
||
GtkBox *box = user_data;
|
||
|
||
gtk_box_invalidate_order (box);
|
||
}
|
||
|
||
static GtkBoxChild *
|
||
gtk_box_pack (GtkBox *box,
|
||
GtkWidget *child,
|
||
gboolean expand,
|
||
gboolean fill,
|
||
guint padding,
|
||
GtkPackType pack_type)
|
||
{
|
||
GtkBoxPrivate *private = box->priv;
|
||
GtkBoxChild *child_info;
|
||
|
||
g_return_val_if_fail (GTK_IS_BOX (box), NULL);
|
||
g_return_val_if_fail (GTK_IS_WIDGET (child), NULL);
|
||
g_return_val_if_fail (gtk_widget_get_parent (child) == NULL, 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;
|
||
|
||
private->children = g_list_append (private->children, child_info);
|
||
|
||
gtk_widget_freeze_child_notify (child);
|
||
|
||
gtk_box_invalidate_order (box);
|
||
gtk_widget_set_parent (child, GTK_WIDGET (box));
|
||
|
||
g_signal_connect (child, "notify::visible",
|
||
G_CALLBACK (box_child_visibility_notify_cb), 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);
|
||
|
||
return child_info;
|
||
}
|
||
|
||
static void
|
||
gtk_box_get_size (GtkWidget *widget,
|
||
GtkOrientation orientation,
|
||
gint *minimum_size,
|
||
gint *natural_size,
|
||
gint *minimum_baseline,
|
||
gint *natural_baseline)
|
||
{
|
||
GtkBox *box;
|
||
GtkBoxPrivate *private;
|
||
GList *children;
|
||
gint nvis_children;
|
||
gint minimum, natural;
|
||
gint minimum_above, natural_above;
|
||
gint minimum_below, natural_below;
|
||
gboolean have_baseline;
|
||
gint min_baseline, nat_baseline;
|
||
gint center_min, center_nat;
|
||
|
||
box = GTK_BOX (widget);
|
||
private = box->priv;
|
||
|
||
have_baseline = FALSE;
|
||
minimum = natural = 0;
|
||
minimum_above = natural_above = 0;
|
||
minimum_below = natural_below = 0;
|
||
min_baseline = nat_baseline = -1;
|
||
|
||
nvis_children = 0;
|
||
|
||
center_min = center_nat = 0;
|
||
|
||
for (children = private->children; children; children = children->next)
|
||
{
|
||
GtkBoxChild *child = children->data;
|
||
|
||
if (gtk_widget_get_visible (child->widget))
|
||
{
|
||
gint child_minimum, child_natural;
|
||
gint child_minimum_baseline = -1, child_natural_baseline = -1;
|
||
|
||
if (orientation == GTK_ORIENTATION_HORIZONTAL)
|
||
gtk_widget_get_preferred_width (child->widget,
|
||
&child_minimum, &child_natural);
|
||
else
|
||
gtk_widget_get_preferred_height_and_baseline_for_width (child->widget, -1,
|
||
&child_minimum, &child_natural,
|
||
&child_minimum_baseline, &child_natural_baseline);
|
||
|
||
if (private->orientation == orientation)
|
||
{
|
||
if (private->homogeneous)
|
||
{
|
||
if (child == private->center)
|
||
{
|
||
center_min = child_minimum + child->padding * 2;
|
||
center_nat = child_natural + child->padding * 2;
|
||
}
|
||
else
|
||
{
|
||
gint largest;
|
||
|
||
largest = child_minimum + child->padding * 2;
|
||
minimum = MAX (minimum, largest);
|
||
|
||
largest = child_natural + child->padding * 2;
|
||
natural = MAX (natural, largest);
|
||
}
|
||
}
|
||
else
|
||
{
|
||
minimum += child_minimum + child->padding * 2;
|
||
natural += child_natural + child->padding * 2;
|
||
}
|
||
}
|
||
else
|
||
{
|
||
if (child_minimum_baseline >= 0)
|
||
{
|
||
have_baseline = TRUE;
|
||
minimum_below = MAX (minimum_below, child_minimum - child_minimum_baseline);
|
||
natural_below = MAX (natural_below, child_natural - child_natural_baseline);
|
||
minimum_above = MAX (minimum_above, child_minimum_baseline);
|
||
natural_above = MAX (natural_above, child_natural_baseline);
|
||
}
|
||
else
|
||
{
|
||
/* The biggest mins and naturals in the opposing orientation */
|
||
minimum = MAX (minimum, child_minimum);
|
||
natural = MAX (natural, child_natural);
|
||
}
|
||
}
|
||
|
||
nvis_children += 1;
|
||
}
|
||
}
|
||
|
||
if (nvis_children > 0 && private->orientation == orientation)
|
||
{
|
||
if (private->homogeneous)
|
||
{
|
||
if (center_min > 0)
|
||
{
|
||
minimum = minimum * (nvis_children - 1) + center_min;
|
||
natural = natural * (nvis_children - 1) + center_nat;
|
||
}
|
||
else
|
||
{
|
||
minimum *= nvis_children;
|
||
natural *= nvis_children;
|
||
}
|
||
}
|
||
minimum += (nvis_children - 1) * private->spacing;
|
||
natural += (nvis_children - 1) * private->spacing;
|
||
}
|
||
|
||
minimum = MAX (minimum, minimum_below + minimum_above);
|
||
natural = MAX (natural, natural_below + natural_above);
|
||
|
||
if (have_baseline)
|
||
{
|
||
switch (private->baseline_pos)
|
||
{
|
||
case GTK_BASELINE_POSITION_TOP:
|
||
min_baseline = minimum_above;
|
||
nat_baseline = natural_above;
|
||
break;
|
||
case GTK_BASELINE_POSITION_CENTER:
|
||
min_baseline = minimum_above + (minimum - (minimum_above + minimum_below)) / 2;
|
||
nat_baseline = natural_above + (natural - (natural_above + natural_below)) / 2;
|
||
break;
|
||
case GTK_BASELINE_POSITION_BOTTOM:
|
||
min_baseline = minimum - minimum_below;
|
||
nat_baseline = natural - natural_below;
|
||
break;
|
||
}
|
||
}
|
||
|
||
if (minimum_size)
|
||
*minimum_size = minimum;
|
||
|
||
if (natural_size)
|
||
*natural_size = natural;
|
||
|
||
if (minimum_baseline)
|
||
*minimum_baseline = min_baseline;
|
||
|
||
if (natural_baseline)
|
||
*natural_baseline = nat_baseline;
|
||
}
|
||
|
||
static void
|
||
gtk_box_get_preferred_width (GtkWidget *widget,
|
||
gint *minimum_size,
|
||
gint *natural_size)
|
||
{
|
||
gtk_box_get_size (widget, GTK_ORIENTATION_HORIZONTAL, minimum_size, natural_size, NULL, NULL);
|
||
}
|
||
|
||
static void
|
||
gtk_box_get_preferred_height (GtkWidget *widget,
|
||
gint *minimum_size,
|
||
gint *natural_size)
|
||
{
|
||
gtk_box_get_size (widget, GTK_ORIENTATION_VERTICAL, minimum_size, natural_size, NULL, NULL);
|
||
}
|
||
|
||
static void
|
||
gtk_box_compute_size_for_opposing_orientation (GtkBox *box,
|
||
gint avail_size,
|
||
gint *minimum_size,
|
||
gint *natural_size,
|
||
gint *minimum_baseline,
|
||
gint *natural_baseline)
|
||
{
|
||
GtkBoxPrivate *private = box->priv;
|
||
GtkBoxChild *child;
|
||
GList *children;
|
||
gint nvis_children;
|
||
gint nexpand_children;
|
||
gint computed_minimum = 0, computed_natural = 0;
|
||
gint computed_minimum_above = 0, computed_natural_above = 0;
|
||
gint computed_minimum_below = 0, computed_natural_below = 0;
|
||
gint computed_minimum_baseline = -1, computed_natural_baseline = -1;
|
||
GtkRequestedSize *sizes;
|
||
GtkPackType packing;
|
||
gint size, extra, i;
|
||
gint child_size, child_minimum, child_natural;
|
||
gint child_minimum_baseline, child_natural_baseline;
|
||
gint n_extra_widgets = 0;
|
||
gboolean have_baseline;
|
||
|
||
count_expand_children (box, &nvis_children, &nexpand_children);
|
||
|
||
if (nvis_children <= 0)
|
||
return;
|
||
|
||
sizes = g_newa (GtkRequestedSize, nvis_children);
|
||
size = avail_size - (nvis_children - 1) * private->spacing;
|
||
|
||
/* Retrieve desired size for visible children */
|
||
for (i = 0, children = private->children; children; children = children->next)
|
||
{
|
||
child = children->data;
|
||
|
||
if (gtk_widget_get_visible (child->widget))
|
||
{
|
||
if (private->orientation == GTK_ORIENTATION_HORIZONTAL)
|
||
gtk_widget_get_preferred_width (child->widget,
|
||
&sizes[i].minimum_size,
|
||
&sizes[i].natural_size);
|
||
else
|
||
gtk_widget_get_preferred_height (child->widget,
|
||
&sizes[i].minimum_size,
|
||
&sizes[i].natural_size);
|
||
|
||
/* Assert the api is working properly */
|
||
if (sizes[i].minimum_size < 0)
|
||
g_error ("GtkBox child %s minimum %s: %d < 0",
|
||
gtk_widget_get_name (GTK_WIDGET (child->widget)),
|
||
(private->orientation == GTK_ORIENTATION_HORIZONTAL) ? "width" : "height",
|
||
sizes[i].minimum_size);
|
||
|
||
if (sizes[i].natural_size < sizes[i].minimum_size)
|
||
g_error ("GtkBox child %s natural %s: %d < minimum %d",
|
||
gtk_widget_get_name (GTK_WIDGET (child->widget)),
|
||
(private->orientation == GTK_ORIENTATION_HORIZONTAL) ? "width" : "height",
|
||
sizes[i].natural_size,
|
||
sizes[i].minimum_size);
|
||
|
||
size -= sizes[i].minimum_size;
|
||
size -= child->padding * 2;
|
||
|
||
sizes[i].data = child;
|
||
|
||
i += 1;
|
||
}
|
||
}
|
||
|
||
if (private->homogeneous)
|
||
{
|
||
/* If were homogenous we still need to run the above loop to get the
|
||
* minimum sizes for children that are not going to fill
|
||
*/
|
||
size = avail_size - (nvis_children - 1) * private->spacing;
|
||
extra = size / nvis_children;
|
||
n_extra_widgets = size % nvis_children;
|
||
}
|
||
else
|
||
{
|
||
/* Bring children up to size first */
|
||
size = gtk_distribute_natural_allocation (MAX (0, size), nvis_children, sizes);
|
||
|
||
/* Calculate space which hasn't distributed yet,
|
||
* and is available for expanding children.
|
||
*/
|
||
if (nexpand_children > 0)
|
||
{
|
||
extra = size / nexpand_children;
|
||
n_extra_widgets = size % nexpand_children;
|
||
}
|
||
else
|
||
extra = 0;
|
||
}
|
||
|
||
have_baseline = FALSE;
|
||
/* Allocate child positions. */
|
||
for (packing = GTK_PACK_START; packing <= GTK_PACK_END; ++packing)
|
||
{
|
||
for (i = 0, children = private->children;
|
||
children;
|
||
children = children->next)
|
||
{
|
||
child = children->data;
|
||
|
||
/* If widget is not visible, skip it. */
|
||
if (!gtk_widget_get_visible (child->widget))
|
||
continue;
|
||
|
||
/* If widget is packed differently skip it, but still increment i,
|
||
* since widget is visible and will be handled in next loop iteration.
|
||
*/
|
||
if (child->pack != packing)
|
||
{
|
||
i++;
|
||
continue;
|
||
}
|
||
|
||
if (child->pack == packing)
|
||
{
|
||
/* Assign the child's size. */
|
||
if (private->homogeneous)
|
||
{
|
||
child_size = extra;
|
||
|
||
if (n_extra_widgets > 0)
|
||
{
|
||
child_size++;
|
||
n_extra_widgets--;
|
||
}
|
||
}
|
||
else
|
||
{
|
||
child_size = sizes[i].minimum_size + child->padding * 2;
|
||
|
||
if (child->expand || gtk_widget_compute_expand (child->widget, private->orientation))
|
||
{
|
||
child_size += extra;
|
||
|
||
if (n_extra_widgets > 0)
|
||
{
|
||
child_size++;
|
||
n_extra_widgets--;
|
||
}
|
||
}
|
||
}
|
||
|
||
if (child->fill)
|
||
{
|
||
child_size = MAX (1, child_size - child->padding * 2);
|
||
}
|
||
else
|
||
{
|
||
child_size = sizes[i].minimum_size;
|
||
}
|
||
|
||
|
||
child_minimum_baseline = child_natural_baseline = -1;
|
||
/* Assign the child's position. */
|
||
if (private->orientation == GTK_ORIENTATION_HORIZONTAL)
|
||
gtk_widget_get_preferred_height_and_baseline_for_width (child->widget, child_size,
|
||
&child_minimum, &child_natural,
|
||
&child_minimum_baseline, &child_natural_baseline);
|
||
else /* (private->orientation == GTK_ORIENTATION_VERTICAL) */
|
||
gtk_widget_get_preferred_width_for_height (child->widget,
|
||
child_size, &child_minimum, &child_natural);
|
||
|
||
if (child_minimum_baseline >= 0)
|
||
{
|
||
have_baseline = TRUE;
|
||
computed_minimum_below = MAX (computed_minimum_below, child_minimum - child_minimum_baseline);
|
||
computed_natural_below = MAX (computed_natural_below, child_natural - child_natural_baseline);
|
||
computed_minimum_above = MAX (computed_minimum_above, child_minimum_baseline);
|
||
computed_natural_above = MAX (computed_natural_above, child_natural_baseline);
|
||
}
|
||
else
|
||
{
|
||
computed_minimum = MAX (computed_minimum, child_minimum);
|
||
computed_natural = MAX (computed_natural, child_natural);
|
||
}
|
||
}
|
||
i += 1;
|
||
}
|
||
}
|
||
|
||
if (have_baseline)
|
||
{
|
||
computed_minimum = MAX (computed_minimum, computed_minimum_below + computed_minimum_above);
|
||
computed_natural = MAX (computed_natural, computed_natural_below + computed_natural_above);
|
||
switch (private->baseline_pos)
|
||
{
|
||
case GTK_BASELINE_POSITION_TOP:
|
||
computed_minimum_baseline = computed_minimum_above;
|
||
computed_natural_baseline = computed_natural_above;
|
||
break;
|
||
case GTK_BASELINE_POSITION_CENTER:
|
||
computed_minimum_baseline = computed_minimum_above + MAX((computed_minimum - (computed_minimum_above + computed_minimum_below)) / 2, 0);
|
||
computed_natural_baseline = computed_natural_above + MAX((computed_natural - (computed_natural_above + computed_natural_below)) / 2, 0);
|
||
break;
|
||
case GTK_BASELINE_POSITION_BOTTOM:
|
||
computed_minimum_baseline = computed_minimum - computed_minimum_below;
|
||
computed_natural_baseline = computed_natural - computed_natural_below;
|
||
break;
|
||
}
|
||
}
|
||
|
||
if (minimum_baseline)
|
||
*minimum_baseline = computed_minimum_baseline;
|
||
if (natural_baseline)
|
||
*natural_baseline = computed_natural_baseline;
|
||
|
||
if (minimum_size)
|
||
*minimum_size = computed_minimum;
|
||
if (natural_size)
|
||
*natural_size = MAX (computed_natural, computed_natural_below + computed_natural_above);
|
||
}
|
||
|
||
static void
|
||
gtk_box_compute_size_for_orientation (GtkBox *box,
|
||
gint avail_size,
|
||
gint *minimum_size,
|
||
gint *natural_size)
|
||
{
|
||
GtkBoxPrivate *private = box->priv;
|
||
GList *children;
|
||
gint nvis_children = 0;
|
||
gint required_size = 0, required_natural = 0, child_size, child_natural;
|
||
gint largest_child = 0, largest_natural = 0;
|
||
|
||
for (children = private->children; children != NULL;
|
||
children = children->next)
|
||
{
|
||
GtkBoxChild *child = children->data;
|
||
|
||
if (gtk_widget_get_visible (child->widget))
|
||
{
|
||
|
||
if (private->orientation == GTK_ORIENTATION_HORIZONTAL)
|
||
gtk_widget_get_preferred_width_for_height (child->widget,
|
||
avail_size, &child_size, &child_natural);
|
||
else
|
||
gtk_widget_get_preferred_height_for_width (child->widget,
|
||
avail_size, &child_size, &child_natural);
|
||
|
||
|
||
child_size += child->padding * 2;
|
||
child_natural += child->padding * 2;
|
||
|
||
if (child_size > largest_child)
|
||
largest_child = child_size;
|
||
|
||
if (child_natural > largest_natural)
|
||
largest_natural = child_natural;
|
||
|
||
required_size += child_size;
|
||
required_natural += child_natural;
|
||
|
||
nvis_children += 1;
|
||
}
|
||
}
|
||
|
||
if (nvis_children > 0)
|
||
{
|
||
if (private->homogeneous)
|
||
{
|
||
required_size = largest_child * nvis_children;
|
||
required_natural = largest_natural * nvis_children;
|
||
}
|
||
|
||
required_size += (nvis_children - 1) * private->spacing;
|
||
required_natural += (nvis_children - 1) * private->spacing;
|
||
}
|
||
|
||
if (minimum_size)
|
||
*minimum_size = required_size;
|
||
|
||
if (natural_size)
|
||
*natural_size = required_natural;
|
||
}
|
||
|
||
static void
|
||
gtk_box_get_preferred_width_for_height (GtkWidget *widget,
|
||
gint height,
|
||
gint *minimum_width,
|
||
gint *natural_width)
|
||
{
|
||
GtkBox *box = GTK_BOX (widget);
|
||
GtkBoxPrivate *private = box->priv;
|
||
|
||
if (private->orientation == GTK_ORIENTATION_VERTICAL)
|
||
gtk_box_compute_size_for_opposing_orientation (box, height, minimum_width, natural_width, NULL, NULL);
|
||
else
|
||
gtk_box_compute_size_for_orientation (box, height, minimum_width, natural_width);
|
||
}
|
||
|
||
static void
|
||
gtk_box_get_preferred_height_and_baseline_for_width (GtkWidget *widget,
|
||
gint width,
|
||
gint *minimum_height,
|
||
gint *natural_height,
|
||
gint *minimum_baseline,
|
||
gint *natural_baseline)
|
||
{
|
||
GtkBox *box = GTK_BOX (widget);
|
||
GtkBoxPrivate *private = box->priv;
|
||
|
||
if (width < 0)
|
||
gtk_box_get_size (widget, GTK_ORIENTATION_VERTICAL, minimum_height, natural_height, minimum_baseline, natural_baseline);
|
||
else
|
||
{
|
||
if (private->orientation == GTK_ORIENTATION_HORIZONTAL)
|
||
gtk_box_compute_size_for_opposing_orientation (box, width, minimum_height, natural_height, minimum_baseline, natural_baseline);
|
||
else
|
||
{
|
||
if (minimum_baseline)
|
||
*minimum_baseline = -1;
|
||
if (natural_baseline)
|
||
*natural_baseline = -1;
|
||
gtk_box_compute_size_for_orientation (box, width, minimum_height, natural_height);
|
||
}
|
||
}
|
||
}
|
||
|
||
static void
|
||
gtk_box_get_preferred_height_for_width (GtkWidget *widget,
|
||
gint width,
|
||
gint *minimum_height,
|
||
gint *natural_height)
|
||
{
|
||
gtk_box_get_preferred_height_and_baseline_for_width (widget, width, minimum_height, natural_height, NULL, NULL);
|
||
}
|
||
|
||
/**
|
||
* gtk_box_new:
|
||
* @orientation: the box’s orientation.
|
||
* @spacing: the number of pixels to place by default between children.
|
||
*
|
||
* Creates a new #GtkBox.
|
||
*
|
||
* Returns: a new #GtkBox.
|
||
*
|
||
* Since: 3.0
|
||
**/
|
||
GtkWidget*
|
||
gtk_box_new (GtkOrientation orientation,
|
||
gint spacing)
|
||
{
|
||
return g_object_new (GTK_TYPE_BOX,
|
||
"orientation", orientation,
|
||
"spacing", spacing,
|
||
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
|
||
* 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 horizontal #GtkBox and the full width
|
||
* of a vertical #GtkBox. 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 horizontal #GtkBox and the full width
|
||
* of a vertical #GtkBox. 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_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)
|
||
{
|
||
GtkBoxPrivate *private;
|
||
|
||
g_return_if_fail (GTK_IS_BOX (box));
|
||
|
||
private = box->priv;
|
||
|
||
homogeneous = homogeneous != FALSE;
|
||
|
||
if (private->homogeneous != homogeneous)
|
||
{
|
||
private->homogeneous = homogeneous;
|
||
g_object_notify_by_pspec (G_OBJECT (box), props[PROP_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().
|
||
*
|
||
* Returns: %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->priv->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)
|
||
{
|
||
GtkBoxPrivate *private;
|
||
|
||
g_return_if_fail (GTK_IS_BOX (box));
|
||
|
||
private = box->priv;
|
||
|
||
if (private->spacing != spacing)
|
||
{
|
||
private->spacing = spacing;
|
||
_gtk_box_set_spacing_set (box, TRUE);
|
||
|
||
g_object_notify_by_pspec (G_OBJECT (box), props[PROP_SPACING]);
|
||
|
||
gtk_widget_queue_resize (GTK_WIDGET (box));
|
||
}
|
||
}
|
||
|
||
/**
|
||
* gtk_box_get_spacing:
|
||
* @box: a #GtkBox
|
||
*
|
||
* Gets the value set by gtk_box_set_spacing().
|
||
*
|
||
* Returns: spacing between children
|
||
**/
|
||
gint
|
||
gtk_box_get_spacing (GtkBox *box)
|
||
{
|
||
g_return_val_if_fail (GTK_IS_BOX (box), 0);
|
||
|
||
return box->priv->spacing;
|
||
}
|
||
|
||
/**
|
||
* gtk_box_set_baseline_position:
|
||
* @box: a #GtkBox
|
||
* @position: a #GtkBaselinePosition
|
||
*
|
||
* Sets the baseline position of a box. This affects
|
||
* only horizontal boxes with at least one baseline aligned
|
||
* child. If there is more vertical space available than requested,
|
||
* and the baseline is not allocated by the parent then
|
||
* @position is used to allocate the baseline wrt the
|
||
* extra space available.
|
||
*
|
||
* Since: 3.10
|
||
*/
|
||
void
|
||
gtk_box_set_baseline_position (GtkBox *box,
|
||
GtkBaselinePosition position)
|
||
{
|
||
GtkBoxPrivate *private;
|
||
|
||
g_return_if_fail (GTK_IS_BOX (box));
|
||
|
||
private = box->priv;
|
||
|
||
if (private->baseline_pos != position)
|
||
{
|
||
private->baseline_pos = position;
|
||
|
||
g_object_notify_by_pspec (G_OBJECT (box), props[PROP_BASELINE_POSITION]);
|
||
|
||
gtk_widget_queue_resize (GTK_WIDGET (box));
|
||
}
|
||
}
|
||
|
||
/**
|
||
* gtk_box_get_baseline_position:
|
||
* @box: a #GtkBox
|
||
*
|
||
* Gets the value set by gtk_box_set_baseline_position().
|
||
*
|
||
* Returns: the baseline position
|
||
*
|
||
* Since: 3.10
|
||
**/
|
||
GtkBaselinePosition
|
||
gtk_box_get_baseline_position (GtkBox *box)
|
||
{
|
||
g_return_val_if_fail (GTK_IS_BOX (box), GTK_BASELINE_POSITION_CENTER);
|
||
|
||
return box->priv->baseline_pos;
|
||
}
|
||
|
||
|
||
void
|
||
_gtk_box_set_spacing_set (GtkBox *box,
|
||
gboolean spacing_set)
|
||
{
|
||
GtkBoxPrivate *private;
|
||
|
||
g_return_if_fail (GTK_IS_BOX (box));
|
||
|
||
private = box->priv;
|
||
|
||
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 = box->priv;
|
||
|
||
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 contains 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)
|
||
{
|
||
GtkBoxPrivate *priv;
|
||
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));
|
||
|
||
priv = box->priv;
|
||
|
||
old_link = priv->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;
|
||
|
||
priv->children = g_list_delete_link (priv->children, old_link);
|
||
|
||
if (position < 0)
|
||
new_link = NULL;
|
||
else
|
||
new_link = g_list_nth (priv->children, position);
|
||
|
||
priv->children = g_list_insert_before (priv->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_box_invalidate_order (box);
|
||
gtk_widget_queue_resize (child);
|
||
}
|
||
}
|
||
|
||
/**
|
||
* gtk_box_query_child_packing:
|
||
* @box: a #GtkBox
|
||
* @child: the #GtkWidget of the child to query
|
||
* @expand: (out): pointer to return location for expand child
|
||
* property
|
||
* @fill: (out): pointer to return location for fill child
|
||
* property
|
||
* @padding: (out): pointer to return location for padding
|
||
* child property
|
||
* @pack_type: (out): pointer to return location for 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)
|
||
{
|
||
GtkBoxPrivate *private;
|
||
GList *list;
|
||
GtkBoxChild *child_info = NULL;
|
||
|
||
g_return_if_fail (GTK_IS_BOX (box));
|
||
g_return_if_fail (GTK_IS_WIDGET (child));
|
||
|
||
private = box->priv;
|
||
|
||
list = private->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 expand child property
|
||
* @fill: the new value of the fill child property
|
||
* @padding: the new value of the padding child property
|
||
* @pack_type: the new value of the 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)
|
||
{
|
||
GtkBoxPrivate *private;
|
||
GList *list;
|
||
GtkBoxChild *child_info = NULL;
|
||
|
||
g_return_if_fail (GTK_IS_BOX (box));
|
||
g_return_if_fail (GTK_IS_WIDGET (child));
|
||
|
||
private = box->priv;
|
||
|
||
list = private->children;
|
||
while (list)
|
||
{
|
||
child_info = list->data;
|
||
if (child_info->widget == child)
|
||
break;
|
||
|
||
list = list->next;
|
||
}
|
||
|
||
gtk_widget_freeze_child_notify (child);
|
||
if (list)
|
||
{
|
||
gboolean expanded;
|
||
|
||
expanded = expand != FALSE;
|
||
|
||
/* avoid setting expand if unchanged, since queue_compute_expand
|
||
* can be expensive-ish
|
||
*/
|
||
if (child_info->expand != expanded)
|
||
{
|
||
child_info->expand = expand != FALSE;
|
||
gtk_widget_queue_compute_expand (GTK_WIDGET (box));
|
||
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)
|
||
pack_type = GTK_PACK_START;
|
||
if (child_info->pack != pack_type)
|
||
{
|
||
child_info->pack = pack_type;
|
||
gtk_widget_child_notify (child, "pack-type");
|
||
gtk_box_invalidate_order (box);
|
||
}
|
||
|
||
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 = box->priv;
|
||
|
||
private->default_expand = TRUE;
|
||
}
|
||
|
||
static void
|
||
gtk_box_add (GtkContainer *container,
|
||
GtkWidget *widget)
|
||
{
|
||
GtkBoxPrivate *priv = GTK_BOX (container)->priv;
|
||
|
||
gtk_box_pack_start (GTK_BOX (container), widget,
|
||
priv->default_expand,
|
||
TRUE,
|
||
0);
|
||
}
|
||
|
||
static void
|
||
gtk_box_remove (GtkContainer *container,
|
||
GtkWidget *widget)
|
||
{
|
||
GtkBox *box = GTK_BOX (container);
|
||
GtkBoxPrivate *priv = box->priv;
|
||
GtkBoxChild *child;
|
||
GList *children;
|
||
|
||
children = priv->children;
|
||
while (children)
|
||
{
|
||
child = children->data;
|
||
|
||
if (child->widget == widget)
|
||
{
|
||
gboolean was_visible;
|
||
|
||
if (priv->center == child)
|
||
priv->center = NULL;
|
||
|
||
g_signal_handlers_disconnect_by_func (widget,
|
||
box_child_visibility_notify_cb,
|
||
box);
|
||
|
||
was_visible = gtk_widget_get_visible (widget);
|
||
gtk_widget_unparent (widget);
|
||
|
||
priv->children = g_list_remove_link (priv->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_box_invalidate_order (box);
|
||
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);
|
||
GtkBoxPrivate *priv = box->priv;
|
||
GtkBoxChild *child;
|
||
GList *children;
|
||
|
||
children = priv->children;
|
||
while (children)
|
||
{
|
||
child = children->data;
|
||
children = children->next;
|
||
|
||
if (child == priv->center)
|
||
continue;
|
||
|
||
if (child->pack == GTK_PACK_START)
|
||
(* callback) (child->widget, callback_data);
|
||
}
|
||
|
||
if (priv->center)
|
||
(* callback) (priv->center->widget, callback_data);
|
||
|
||
children = g_list_last (priv->children);
|
||
while (children)
|
||
{
|
||
child = children->data;
|
||
children = children->prev;
|
||
|
||
if (child == priv->center)
|
||
continue;
|
||
|
||
if (child->pack == GTK_PACK_END)
|
||
(* callback) (child->widget, callback_data);
|
||
}
|
||
}
|
||
|
||
GList *
|
||
_gtk_box_get_children (GtkBox *box)
|
||
{
|
||
GtkBoxPrivate *priv;
|
||
GtkBoxChild *child;
|
||
GList *children;
|
||
GList *retval = NULL;
|
||
|
||
g_return_val_if_fail (GTK_IS_BOX (box), NULL);
|
||
|
||
priv = box->priv;
|
||
|
||
children = priv->children;
|
||
while (children)
|
||
{
|
||
child = children->data;
|
||
children = children->next;
|
||
|
||
retval = g_list_prepend (retval, child->widget);
|
||
}
|
||
|
||
return g_list_reverse (retval);
|
||
}
|
||
|
||
/**
|
||
* gtk_box_set_center_widget:
|
||
* @box: a #GtkBox
|
||
* @widget: (allow-none): the widget to center
|
||
*
|
||
* Sets a center widget; that is a child widget that will be
|
||
* centered with respect to the full width of the box, even
|
||
* if the children at either side take up different amounts
|
||
* of space.
|
||
*
|
||
* Since: 3.12
|
||
*/
|
||
void
|
||
gtk_box_set_center_widget (GtkBox *box,
|
||
GtkWidget *widget)
|
||
{
|
||
GtkBoxPrivate *priv = box->priv;
|
||
GtkWidget *old_center = NULL;
|
||
|
||
g_return_if_fail (GTK_IS_BOX (box));
|
||
|
||
if (priv->center)
|
||
{
|
||
old_center = g_object_ref (priv->center->widget);
|
||
gtk_box_remove (GTK_CONTAINER (box), priv->center->widget);
|
||
priv->center = NULL;
|
||
}
|
||
|
||
if (widget)
|
||
priv->center = gtk_box_pack (box, widget, FALSE, TRUE, 0, GTK_PACK_START);
|
||
|
||
if (old_center)
|
||
g_object_unref (old_center);
|
||
}
|
||
|
||
/**
|
||
* gtk_box_get_center_widget:
|
||
* @box: a #GtkBox
|
||
*
|
||
* Retrieves the center widget of the box.
|
||
*
|
||
* Returns: (transfer none): the center widget
|
||
*
|
||
* Since: 3.12
|
||
*/
|
||
GtkWidget *
|
||
gtk_box_get_center_widget (GtkBox *box)
|
||
{
|
||
GtkBoxPrivate *priv = box->priv;
|
||
|
||
g_return_val_if_fail (GTK_IS_BOX (box), NULL);
|
||
|
||
if (priv->center)
|
||
return priv->center->widget;
|
||
|
||
return NULL;
|
||
}
|