forked from AuroraMiddleware/gtk
179b8b0cbc
Turns out that the destination is the last parameter, not the first one. This fixes the flickering in the first page of the widget-factory when using the expander on page 2.
1941 lines
55 KiB
C
1941 lines
55 KiB
C
/* GTK - The GIMP Toolkit
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* Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library. If not, see <http://www.gnu.org/licenses/>.
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*/
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/*
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* Modified by the GTK+ Team and others 1997-2000. See the AUTHORS
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* file for a list of people on the GTK+ Team. See the ChangeLog
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* files for a list of changes. These files are distributed with
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* GTK+ at ftp://ftp.gtk.org/pub/gtk/.
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*/
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/**
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* SECTION:gtkbox
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* @Short_description: A container box
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* @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
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* end to start. You may intersperse these calls and add widgets from
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* 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. 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.
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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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* 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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* # CSS nodes
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*
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* GtkBox uses a single CSS node with name box.
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*
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* In horizontal orientation, the nodes of the children are always arranged
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* from left to right. So :first-child will always select the leftmost child,
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* regardless of text direction.
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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 "gtkcontainerprivate.h"
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#include "gtkcsscustomgadgetprivate.h"
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#include "gtkcssnodeprivate.h"
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#include "gtkcsspositionvalueprivate.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 "gtkstylecontextprivate.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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enum {
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PROP_0,
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PROP_SPACING,
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PROP_HOMOGENEOUS,
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PROP_BASELINE_POSITION,
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/* orientable */
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PROP_ORIENTATION,
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LAST_PROP = PROP_ORIENTATION
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};
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enum {
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CHILD_PROP_0,
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CHILD_PROP_PACK_TYPE,
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CHILD_PROP_POSITION,
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LAST_CHILD_PROP
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};
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typedef struct _GtkBoxChild GtkBoxChild;
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struct _GtkBoxPrivate
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{
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GList *children;
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GtkCssGadget *gadget;
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GtkOrientation orientation;
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gint16 spacing;
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guint homogeneous : 1;
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guint baseline_pos : 2;
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};
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static GParamSpec *props[LAST_PROP] = { NULL, };
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static GParamSpec *child_props[LAST_CHILD_PROP] = { NULL, };
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/*
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* GtkBoxChild:
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* @widget: the child widget, packed into the GtkBox.
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* neighbors, set when packed, zero by default.
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* @pack: one of #GtkPackType indicating whether the child is packed with
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* reference to the start (top/left) or end (bottom/right) of the GtkBox.
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*/
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struct _GtkBoxChild
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{
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GtkWidget *widget;
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guint pack : 1;
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};
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static void gtk_box_size_allocate (GtkWidget *widget,
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GtkAllocation *allocation);
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static void gtk_box_direction_changed (GtkWidget *widget,
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GtkTextDirection previous_direction);
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static void gtk_box_set_property (GObject *object,
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guint prop_id,
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const GValue *value,
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GParamSpec *pspec);
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static void gtk_box_get_property (GObject *object,
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guint prop_id,
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GValue *value,
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GParamSpec *pspec);
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static void gtk_box_add (GtkContainer *container,
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GtkWidget *widget);
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static void gtk_box_remove (GtkContainer *container,
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GtkWidget *widget);
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static void gtk_box_forall (GtkContainer *container,
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GtkCallback callback,
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gpointer callback_data);
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static void gtk_box_set_child_property (GtkContainer *container,
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GtkWidget *child,
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guint property_id,
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const GValue *value,
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GParamSpec *pspec);
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static void gtk_box_get_child_property (GtkContainer *container,
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GtkWidget *child,
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guint property_id,
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GValue *value,
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GParamSpec *pspec);
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static GType gtk_box_child_type (GtkContainer *container);
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static GtkWidgetPath * gtk_box_get_path_for_child
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(GtkContainer *container,
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GtkWidget *child);
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static void gtk_box_measure (GtkWidget *widget,
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GtkOrientation orientation,
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int for_size,
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int *minimum,
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int *natural,
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int *minimum_baseline,
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int *natural_baseline);
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static void gtk_box_snapshot (GtkWidget *widget,
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GtkSnapshot *snapshot);
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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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static void
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gtk_box_dispose (GObject *object)
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{
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GtkBox *box = GTK_BOX (object);
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GtkBoxPrivate *priv = box->priv;
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g_clear_object (&priv->gadget);
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G_OBJECT_CLASS (gtk_box_parent_class)->dispose (object);
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}
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static void
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gtk_box_class_init (GtkBoxClass *class)
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{
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GObjectClass *object_class = G_OBJECT_CLASS (class);
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GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (class);
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GtkContainerClass *container_class = GTK_CONTAINER_CLASS (class);
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object_class->set_property = gtk_box_set_property;
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object_class->get_property = gtk_box_get_property;
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object_class->dispose = gtk_box_dispose;
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widget_class->snapshot = gtk_box_snapshot;
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widget_class->size_allocate = gtk_box_size_allocate;
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widget_class->measure = gtk_box_measure;
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widget_class->direction_changed = gtk_box_direction_changed;
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container_class->add = gtk_box_add;
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container_class->remove = gtk_box_remove;
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container_class->forall = gtk_box_forall;
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container_class->child_type = gtk_box_child_type;
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container_class->set_child_property = gtk_box_set_child_property;
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container_class->get_child_property = gtk_box_get_child_property;
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container_class->get_path_for_child = gtk_box_get_path_for_child;
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g_object_class_override_property (object_class,
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PROP_ORIENTATION,
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"orientation");
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props[PROP_SPACING] =
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g_param_spec_int ("spacing",
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P_("Spacing"),
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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);
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props[PROP_HOMOGENEOUS] =
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g_param_spec_boolean ("homogeneous",
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P_("Homogeneous"),
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P_("Whether the children should all be the same size"),
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FALSE,
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GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY);
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props[PROP_BASELINE_POSITION] =
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g_param_spec_enum ("baseline-position",
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P_("Baseline position"),
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P_("The position of the baseline aligned widgets if extra space is available"),
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GTK_TYPE_BASELINE_POSITION,
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GTK_BASELINE_POSITION_CENTER,
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GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY);
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g_object_class_install_properties (object_class, LAST_PROP, props);
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child_props[CHILD_PROP_PACK_TYPE] =
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g_param_spec_enum ("pack-type",
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P_("Pack type"),
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P_("A GtkPackType indicating whether the child is packed with reference to the start or end of the parent"),
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GTK_TYPE_PACK_TYPE, GTK_PACK_START,
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GTK_PARAM_READWRITE);
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child_props[CHILD_PROP_POSITION] =
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g_param_spec_int ("position",
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P_("Position"),
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P_("The index of the child in the parent"),
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-1, G_MAXINT,
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0,
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GTK_PARAM_READWRITE);
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gtk_container_class_install_child_properties (container_class, LAST_CHILD_PROP, child_props);
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gtk_widget_class_set_accessible_role (widget_class, ATK_ROLE_FILLER);
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gtk_widget_class_set_css_name (widget_class, "box");
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}
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static void
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gtk_box_set_property (GObject *object,
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guint prop_id,
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const GValue *value,
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GParamSpec *pspec)
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{
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GtkBox *box = GTK_BOX (object);
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GtkBoxPrivate *private = box->priv;
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switch (prop_id)
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{
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case PROP_ORIENTATION:
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{
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GtkOrientation orientation = g_value_get_enum (value);
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if (private->orientation != orientation)
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{
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private->orientation = orientation;
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_gtk_orientable_set_style_classes (GTK_ORIENTABLE (box));
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gtk_widget_queue_resize (GTK_WIDGET (box));
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g_object_notify (object, "orientation");
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}
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}
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break;
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case PROP_SPACING:
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gtk_box_set_spacing (box, g_value_get_int (value));
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break;
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case PROP_BASELINE_POSITION:
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gtk_box_set_baseline_position (box, g_value_get_enum (value));
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break;
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case PROP_HOMOGENEOUS:
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gtk_box_set_homogeneous (box, g_value_get_boolean (value));
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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break;
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}
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}
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static void
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gtk_box_get_property (GObject *object,
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guint prop_id,
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GValue *value,
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GParamSpec *pspec)
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{
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GtkBox *box = GTK_BOX (object);
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GtkBoxPrivate *private = box->priv;
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switch (prop_id)
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{
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case PROP_ORIENTATION:
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g_value_set_enum (value, private->orientation);
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break;
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case PROP_SPACING:
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g_value_set_int (value, private->spacing);
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break;
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case PROP_BASELINE_POSITION:
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g_value_set_enum (value, private->baseline_pos);
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break;
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case PROP_HOMOGENEOUS:
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g_value_set_boolean (value, private->homogeneous);
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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break;
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}
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}
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static gboolean
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gtk_box_snapshot_contents (GtkCssGadget *gadget,
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GtkSnapshot *snapshot,
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int x,
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int y,
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int width,
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int height,
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gpointer data)
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{
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GTK_WIDGET_CLASS (gtk_box_parent_class)->snapshot (gtk_css_gadget_get_owner (gadget), snapshot);
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return FALSE;
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}
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static void
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gtk_box_snapshot (GtkWidget *widget,
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GtkSnapshot *snapshot)
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{
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gtk_css_gadget_snapshot (GTK_BOX (widget)->priv->gadget, snapshot);
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}
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static void
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count_expand_children (GtkBox *box,
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gint *visible_children,
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gint *expand_children)
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{
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GtkBoxPrivate *private = box->priv;
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GList *children;
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GtkBoxChild *child;
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*visible_children = *expand_children = 0;
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for (children = private->children; children; children = children->next)
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{
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child = children->data;
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if (_gtk_widget_get_visible (child->widget))
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{
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*visible_children += 1;
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if (gtk_widget_compute_expand (child->widget, private->orientation))
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*expand_children += 1;
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}
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}
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}
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static gint
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get_spacing (GtkBox *box)
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{
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GtkBoxPrivate *priv = box->priv;
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GtkCssValue *border_spacing;
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gint css_spacing;
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border_spacing = _gtk_style_context_peek_property (gtk_widget_get_style_context (GTK_WIDGET (box)), GTK_CSS_PROPERTY_BORDER_SPACING);
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if (priv->orientation == GTK_ORIENTATION_HORIZONTAL)
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css_spacing = _gtk_css_position_value_get_x (border_spacing, 100);
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else
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css_spacing = _gtk_css_position_value_get_y (border_spacing, 100);
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return css_spacing + priv->spacing;
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}
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static void
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gtk_box_size_allocate_no_center (GtkWidget *widget,
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const GtkAllocation *allocation,
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GdkRectangle *out_clip)
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{
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GtkBox *box = GTK_BOX (widget);
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GtkBoxPrivate *private = box->priv;
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GtkBoxChild *child;
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GList *children;
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gint nvis_children;
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gint nexpand_children;
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GtkTextDirection direction;
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GtkAllocation child_allocation;
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GtkRequestedSize *sizes;
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gint child_minimum_baseline, child_natural_baseline;
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gint minimum_above, natural_above;
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gint minimum_below, natural_below;
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gboolean have_baseline;
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gint baseline;
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GtkPackType packing;
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gint extra_space;
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gint children_minimum_size = 0;
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gint size_given_to_child;
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gint n_extra_widgets = 0; /* Number of widgets that receive 1 extra px */
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gint x = 0, y = 0, i;
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gint child_size;
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gint spacing;
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GdkRectangle clip;
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count_expand_children (box, &nvis_children, &nexpand_children);
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/* If there is no visible child, simply return. */
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if (nvis_children <= 0)
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return;
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direction = _gtk_widget_get_direction (widget);
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sizes = g_newa (GtkRequestedSize, nvis_children);
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spacing = get_spacing (box);
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if (private->orientation == GTK_ORIENTATION_HORIZONTAL)
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extra_space = allocation->width - (nvis_children - 1) * spacing;
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else
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extra_space = allocation->height - (nvis_children - 1) * spacing;
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have_baseline = FALSE;
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minimum_above = natural_above = 0;
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minimum_below = natural_below = 0;
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/* Retrieve desired size for visible children. */
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for (i = 0, children = private->children; children; children = children->next)
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{
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child = children->data;
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if (!_gtk_widget_get_visible (child->widget))
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continue;
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gtk_widget_measure (child->widget,
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private->orientation,
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private->orientation == GTK_ORIENTATION_HORIZONTAL ?
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allocation->height : allocation->width,
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&sizes[i].minimum_size, &sizes[i].natural_size,
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NULL, NULL);
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/* Assert the api is working properly */
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if (sizes[i].minimum_size < 0)
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g_error ("GtkBox child %s minimum %s: %d < 0 for %s %d",
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gtk_widget_get_name (GTK_WIDGET (child->widget)),
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(private->orientation == GTK_ORIENTATION_HORIZONTAL) ? "width" : "height",
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sizes[i].minimum_size,
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(private->orientation == GTK_ORIENTATION_HORIZONTAL) ? "height" : "width",
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(private->orientation == GTK_ORIENTATION_HORIZONTAL) ? allocation->height : allocation->width);
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if (sizes[i].natural_size < sizes[i].minimum_size)
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g_error ("GtkBox child %s natural %s: %d < minimum %d for %s %d",
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gtk_widget_get_name (GTK_WIDGET (child->widget)),
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(private->orientation == GTK_ORIENTATION_HORIZONTAL) ? "width" : "height",
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sizes[i].natural_size,
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sizes[i].minimum_size,
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(private->orientation == GTK_ORIENTATION_HORIZONTAL) ? "height" : "width",
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(private->orientation == GTK_ORIENTATION_HORIZONTAL) ? allocation->height : allocation->width);
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children_minimum_size += sizes[i].minimum_size;
|
||
|
||
sizes[i].data = child;
|
||
|
||
i++;
|
||
}
|
||
|
||
if (private->homogeneous)
|
||
{
|
||
/* We still need to run the above loop to populate the minimum sizes for
|
||
* children that aren't going to fill.
|
||
*/
|
||
|
||
size_given_to_child = extra_space / nvis_children;
|
||
n_extra_widgets = extra_space % nvis_children;
|
||
}
|
||
else
|
||
{
|
||
/* Bring children up to size first */
|
||
extra_space -= children_minimum_size;
|
||
extra_space = MAX (0, extra_space);
|
||
extra_space = gtk_distribute_natural_allocation (extra_space, nvis_children, sizes);
|
||
|
||
/* Calculate space which hasn't distributed yet,
|
||
* and is available for expanding children.
|
||
*/
|
||
if (nexpand_children > 0)
|
||
{
|
||
size_given_to_child = extra_space / nexpand_children;
|
||
n_extra_widgets = extra_space % nexpand_children;
|
||
}
|
||
else
|
||
{
|
||
size_given_to_child = 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 = size_given_to_child;
|
||
|
||
if (n_extra_widgets > 0)
|
||
{
|
||
child_size++;
|
||
n_extra_widgets--;
|
||
}
|
||
}
|
||
else
|
||
{
|
||
child_size = sizes[i].minimum_size;
|
||
|
||
if (gtk_widget_compute_expand (child->widget, private->orientation))
|
||
{
|
||
child_size += size_given_to_child;
|
||
|
||
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 (child->widget) == GTK_ALIGN_BASELINE)
|
||
{
|
||
int child_allocation_width;
|
||
int child_minimum_height, child_natural_height;
|
||
|
||
child_allocation_width = MAX (1, child_size);
|
||
|
||
child_minimum_baseline = -1;
|
||
child_natural_baseline = -1;
|
||
gtk_widget_measure (child->widget, GTK_ORIENTATION_VERTICAL,
|
||
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)
|
||
{
|
||
child_allocation.width = MAX (1, child_size);
|
||
child_allocation.x = x;
|
||
|
||
if (packing == GTK_PACK_START)
|
||
{
|
||
x += child_size + spacing;
|
||
}
|
||
else
|
||
{
|
||
x -= child_size + 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) */
|
||
{
|
||
child_allocation.height = MAX (1, child_size);
|
||
child_allocation.y = y;
|
||
|
||
if (packing == GTK_PACK_START)
|
||
{
|
||
y += child_size + spacing;
|
||
}
|
||
else
|
||
{
|
||
y -= child_size + spacing;
|
||
|
||
child_allocation.y -= child_size;
|
||
}
|
||
}
|
||
gtk_widget_size_allocate_with_baseline (child->widget, &child_allocation, baseline);
|
||
gtk_widget_get_clip (child->widget, &clip);
|
||
gdk_rectangle_union (&clip, out_clip, out_clip);
|
||
|
||
i++;
|
||
}
|
||
}
|
||
}
|
||
|
||
static void
|
||
gtk_box_allocate_contents (GtkCssGadget *gadget,
|
||
const GtkAllocation *allocation,
|
||
int baseline,
|
||
GtkAllocation *out_clip,
|
||
gpointer unused)
|
||
{
|
||
GtkWidget *widget = gtk_css_gadget_get_owner (gadget);
|
||
|
||
*out_clip = *allocation;
|
||
gtk_box_size_allocate_no_center (widget, allocation, out_clip);
|
||
}
|
||
|
||
static void
|
||
gtk_box_size_allocate (GtkWidget *widget,
|
||
GtkAllocation *allocation)
|
||
{
|
||
GtkBoxPrivate *priv = GTK_BOX (widget)->priv;
|
||
GtkAllocation clip;
|
||
|
||
gtk_widget_set_allocation (widget, allocation);
|
||
|
||
gtk_css_gadget_allocate (priv->gadget,
|
||
allocation,
|
||
gtk_widget_get_allocated_baseline (widget),
|
||
&clip);
|
||
|
||
gtk_widget_set_clip (widget, &clip);
|
||
}
|
||
|
||
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)
|
||
{
|
||
switch (property_id)
|
||
{
|
||
case CHILD_PROP_PACK_TYPE:
|
||
gtk_box_set_child_packing (GTK_BOX (container),
|
||
child,
|
||
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)
|
||
{
|
||
GtkPackType pack_type = 0;
|
||
GList *list;
|
||
|
||
switch (property_id)
|
||
{
|
||
guint i;
|
||
case CHILD_PROP_PACK_TYPE:
|
||
gtk_box_query_child_packing (GTK_BOX (container),
|
||
child,
|
||
&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_update_child_css_position (GtkBox *box,
|
||
GtkBoxChild *child_info)
|
||
{
|
||
GtkBoxPrivate *priv = box->priv;
|
||
GtkBoxChild *prev;
|
||
gboolean reverse;
|
||
GList *l;
|
||
|
||
prev = NULL;
|
||
for (l = priv->children; l->data != child_info; l = l->next)
|
||
{
|
||
GtkBoxChild *cur = l->data;
|
||
|
||
if (cur->pack == child_info->pack)
|
||
prev = cur;
|
||
}
|
||
|
||
reverse = child_info->pack == GTK_PACK_END;
|
||
if (box->priv->orientation == GTK_ORIENTATION_HORIZONTAL &&
|
||
_gtk_widget_get_direction (GTK_WIDGET (box)) == GTK_TEXT_DIR_RTL)
|
||
reverse = !reverse;
|
||
|
||
if (reverse)
|
||
gtk_css_node_insert_before (gtk_widget_get_css_node (GTK_WIDGET (box)),
|
||
gtk_widget_get_css_node (child_info->widget),
|
||
prev ? gtk_widget_get_css_node (prev->widget) : NULL);
|
||
else
|
||
gtk_css_node_insert_after (gtk_widget_get_css_node (GTK_WIDGET (box)),
|
||
gtk_widget_get_css_node (child_info->widget),
|
||
prev ? gtk_widget_get_css_node (prev->widget) : NULL);
|
||
}
|
||
|
||
static void
|
||
gtk_box_direction_changed (GtkWidget *widget,
|
||
GtkTextDirection previous_direction)
|
||
{
|
||
GtkBox *box = GTK_BOX (widget);
|
||
|
||
if (box->priv->orientation == GTK_ORIENTATION_HORIZONTAL)
|
||
gtk_css_node_reverse_children (gtk_widget_get_css_node (widget));
|
||
}
|
||
|
||
static GtkBoxChild *
|
||
gtk_box_pack (GtkBox *box,
|
||
GtkWidget *child,
|
||
GtkPackType pack_type)
|
||
{
|
||
GtkContainer *container = GTK_CONTAINER (box);
|
||
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->pack = pack_type;
|
||
|
||
private->children = g_list_append (private->children, child_info);
|
||
gtk_box_update_child_css_position (box, child_info);
|
||
|
||
gtk_widget_freeze_child_notify (child);
|
||
|
||
gtk_widget_set_parent (child, GTK_WIDGET (box));
|
||
|
||
if (pack_type != GTK_PACK_START)
|
||
gtk_container_child_notify_by_pspec (container, child, child_props[CHILD_PROP_PACK_TYPE]);
|
||
gtk_container_child_notify_by_pspec (container, child, child_props[CHILD_PROP_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;
|
||
|
||
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;
|
||
|
||
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;
|
||
|
||
gtk_widget_measure (child->widget,
|
||
orientation,
|
||
-1,
|
||
&child_minimum, &child_natural,
|
||
&child_minimum_baseline, &child_natural_baseline);
|
||
|
||
if (private->orientation == orientation)
|
||
{
|
||
if (private->homogeneous)
|
||
{
|
||
int largest;
|
||
|
||
largest = child_minimum;
|
||
minimum = MAX (minimum, largest);
|
||
|
||
largest = child_natural;
|
||
natural = MAX (natural, largest);
|
||
}
|
||
else
|
||
{
|
||
minimum += child_minimum;
|
||
natural += child_natural;
|
||
}
|
||
}
|
||
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)
|
||
{
|
||
gint spacing = get_spacing (box);
|
||
|
||
if (private->homogeneous)
|
||
{
|
||
minimum *= nvis_children;
|
||
natural *= nvis_children;
|
||
}
|
||
minimum += (nvis_children - 1) * spacing;
|
||
natural += (nvis_children - 1) * 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_measure (GtkWidget *widget,
|
||
GtkOrientation orientation,
|
||
int for_size,
|
||
int *minimum,
|
||
int *natural,
|
||
int *minimum_baseline,
|
||
int *natural_baseline)
|
||
{
|
||
gtk_css_gadget_get_preferred_size (GTK_BOX (widget)->priv->gadget,
|
||
orientation,
|
||
for_size,
|
||
minimum, natural,
|
||
minimum_baseline, natural_baseline);
|
||
}
|
||
|
||
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 extra_space, size_given_to_child, i;
|
||
gint children_minimum_size = 0;
|
||
gint child_size, child_minimum, child_natural;
|
||
gint child_minimum_baseline, child_natural_baseline;
|
||
gint n_extra_widgets = 0;
|
||
gint spacing;
|
||
gboolean have_baseline;
|
||
|
||
count_expand_children (box, &nvis_children, &nexpand_children);
|
||
|
||
if (nvis_children <= 0)
|
||
return;
|
||
|
||
spacing = get_spacing (box);
|
||
sizes = g_newa (GtkRequestedSize, nvis_children);
|
||
extra_space = avail_size - (nvis_children - 1) * 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))
|
||
{
|
||
gtk_widget_measure (child->widget,
|
||
private->orientation,
|
||
-1,
|
||
&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",
|
||
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);
|
||
|
||
children_minimum_size += sizes[i].minimum_size;
|
||
|
||
sizes[i].data = child;
|
||
|
||
i += 1;
|
||
}
|
||
}
|
||
|
||
if (private->homogeneous)
|
||
{
|
||
/* We still need to run the above loop to populate the minimum sizes for
|
||
* children that aren't going to fill.
|
||
*/
|
||
|
||
size_given_to_child = extra_space / nvis_children;
|
||
n_extra_widgets = extra_space % nvis_children;
|
||
}
|
||
else
|
||
{
|
||
/* Bring children up to size first */
|
||
extra_space -= children_minimum_size;
|
||
extra_space = MAX (0, extra_space);
|
||
extra_space = gtk_distribute_natural_allocation (extra_space, nvis_children, sizes);
|
||
|
||
/* Calculate space which hasn't distributed yet,
|
||
* and is available for expanding children.
|
||
*/
|
||
if (nexpand_children > 0)
|
||
{
|
||
size_given_to_child = extra_space / nexpand_children;
|
||
n_extra_widgets = extra_space % nexpand_children;
|
||
}
|
||
else
|
||
{
|
||
size_given_to_child = 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 = size_given_to_child;
|
||
|
||
if (n_extra_widgets > 0)
|
||
{
|
||
child_size++;
|
||
n_extra_widgets--;
|
||
}
|
||
}
|
||
else
|
||
{
|
||
child_size = sizes[i].minimum_size;
|
||
|
||
if (gtk_widget_compute_expand (child->widget, private->orientation))
|
||
{
|
||
child_size += size_given_to_child;
|
||
|
||
if (n_extra_widgets > 0)
|
||
{
|
||
child_size++;
|
||
n_extra_widgets--;
|
||
}
|
||
}
|
||
}
|
||
|
||
child_size = MAX (1, child_size);
|
||
|
||
|
||
child_minimum_baseline = child_natural_baseline = -1;
|
||
/* Assign the child's position. */
|
||
gtk_widget_measure (child->widget,
|
||
OPPOSITE_ORIENTATION (private->orientation),
|
||
child_size,
|
||
&child_minimum, &child_natural,
|
||
&child_minimum_baseline, &child_natural_baseline);
|
||
|
||
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;
|
||
gint spacing = get_spacing (box);
|
||
|
||
for (children = private->children; children != NULL;
|
||
children = children->next)
|
||
{
|
||
GtkBoxChild *child = children->data;
|
||
|
||
if (_gtk_widget_get_visible (child->widget))
|
||
{
|
||
|
||
gtk_widget_measure (child->widget,
|
||
private->orientation,
|
||
avail_size,
|
||
&child_size, &child_natural,
|
||
NULL, NULL);
|
||
|
||
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) * spacing;
|
||
required_natural += (nvis_children - 1) * spacing;
|
||
}
|
||
|
||
if (minimum_size)
|
||
*minimum_size = required_size;
|
||
|
||
if (natural_size)
|
||
*natural_size = required_natural;
|
||
}
|
||
|
||
static void
|
||
gtk_box_get_content_size (GtkCssGadget *gadget,
|
||
GtkOrientation orientation,
|
||
gint for_size,
|
||
gint *minimum,
|
||
gint *natural,
|
||
gint *minimum_baseline,
|
||
gint *natural_baseline,
|
||
gpointer unused)
|
||
{
|
||
GtkWidget *widget = gtk_css_gadget_get_owner (gadget);
|
||
GtkBox *box = GTK_BOX (widget);
|
||
GtkBoxPrivate *private = box->priv;
|
||
|
||
if (for_size < 0)
|
||
gtk_box_get_size (widget, orientation, minimum, natural, minimum_baseline, natural_baseline);
|
||
else
|
||
{
|
||
if (private->orientation != orientation)
|
||
gtk_box_compute_size_for_opposing_orientation (box, for_size, minimum, natural, minimum_baseline, natural_baseline);
|
||
else
|
||
{
|
||
if (minimum_baseline)
|
||
*minimum_baseline = -1;
|
||
if (natural_baseline)
|
||
*natural_baseline = -1;
|
||
gtk_box_compute_size_for_orientation (box, for_size, minimum, natural);
|
||
}
|
||
}
|
||
}
|
||
|
||
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->homogeneous = FALSE;
|
||
private->spacing = 0;
|
||
private->baseline_pos = GTK_BASELINE_POSITION_CENTER;
|
||
|
||
private->gadget = gtk_css_custom_gadget_new_for_node (gtk_widget_get_css_node (GTK_WIDGET (box)),
|
||
GTK_WIDGET (box),
|
||
gtk_box_get_content_size,
|
||
gtk_box_allocate_contents,
|
||
gtk_box_snapshot_contents,
|
||
NULL,
|
||
NULL);
|
||
|
||
_gtk_orientable_set_style_classes (GTK_ORIENTABLE (box));
|
||
}
|
||
|
||
GtkCssGadget *
|
||
gtk_box_get_gadget (GtkBox *box)
|
||
{
|
||
return box->priv->gadget;
|
||
}
|
||
|
||
/**
|
||
* 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
|
||
*
|
||
* 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)
|
||
{
|
||
gtk_box_pack (box, child, GTK_PACK_START);
|
||
}
|
||
|
||
/**
|
||
* gtk_box_pack_end:
|
||
* @box: a #GtkBox
|
||
* @child: the #GtkWidget to be added to @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)
|
||
{
|
||
gtk_box_pack (box, child, 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;
|
||
|
||
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;
|
||
}
|
||
|
||
/**
|
||
* 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_box_update_child_css_position (box, child_info);
|
||
|
||
gtk_container_child_notify_by_pspec (GTK_CONTAINER (box), child, child_props[CHILD_PROP_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
|
||
* @pack_type: (out) (optional): 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,
|
||
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 (pack_type)
|
||
*pack_type = child_info->pack;
|
||
}
|
||
}
|
||
|
||
/**
|
||
* gtk_box_set_child_packing:
|
||
* @box: a #GtkBox
|
||
* @child: the #GtkWidget of the child to set
|
||
* @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,
|
||
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)
|
||
{
|
||
if (pack_type != GTK_PACK_END)
|
||
pack_type = GTK_PACK_START;
|
||
if (child_info->pack != pack_type)
|
||
{
|
||
child_info->pack = pack_type;
|
||
gtk_box_update_child_css_position (box, child_info);
|
||
gtk_container_child_notify_by_pspec (GTK_CONTAINER (box), child, child_props[CHILD_PROP_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);
|
||
}
|
||
|
||
static void
|
||
gtk_box_add (GtkContainer *container,
|
||
GtkWidget *widget)
|
||
{
|
||
gtk_box_pack_start (GTK_BOX (container), widget);
|
||
}
|
||
|
||
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;
|
||
|
||
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_widget_queue_resize (GTK_WIDGET (container));
|
||
}
|
||
|
||
break;
|
||
}
|
||
|
||
children = children->next;
|
||
}
|
||
}
|
||
|
||
static void
|
||
gtk_box_forall (GtkContainer *container,
|
||
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->pack == GTK_PACK_START)
|
||
(* callback) (child->widget, callback_data);
|
||
}
|
||
|
||
|
||
children = g_list_last (priv->children);
|
||
while (children)
|
||
{
|
||
child = children->data;
|
||
children = children->prev;
|
||
|
||
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);
|
||
}
|