forked from AuroraMiddleware/gtk
1234 lines
40 KiB
C
1234 lines
40 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:gtkbbox
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* @Short_description: A container for arranging buttons
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* @Title: GtkButtonBox
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*
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* A button box should be used to provide a consistent layout of buttons
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* throughout your application. The layout/spacing can be altered by the
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* programmer, or if desired, by the user to alter the “feel” of a
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* program to a small degree.
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*
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* gtk_button_box_get_layout() and gtk_button_box_set_layout() retrieve and
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* alter the method used to spread the buttons in a button box across the
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* container, respectively.
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*
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* The main purpose of GtkButtonBox is to make sure the children have all the
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* same size. GtkButtonBox gives all children the same size, but it does allow
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* 'outliers' to keep their own larger size.
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*
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* To exempt individual children from homogeneous sizing regardless of their
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* 'outlier' status, you can set the non-homogeneous child
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* property.
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*
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* # CSS nodes
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*
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* GtkButtonBox uses a single CSS node with name buttonbox.
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*/
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#include "config.h"
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#include "gtkbbox.h"
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#include "gtkboxprivate.h"
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#include "gtkorientable.h"
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#include "gtktypebuiltins.h"
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#include "gtkprivate.h"
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#include "gtksizerequest.h"
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#include "gtkwidgetprivate.h"
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#include "gtkcontainerprivate.h"
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#include "gtkcsscustomgadgetprivate.h"
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#include "gtkintl.h"
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struct _GtkButtonBoxPrivate
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{
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GtkButtonBoxStyle layout_style;
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GtkCssGadget *gadget;
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};
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enum {
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PROP_0,
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PROP_LAYOUT_STYLE
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};
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enum {
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CHILD_PROP_0,
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CHILD_PROP_SECONDARY,
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CHILD_PROP_NONHOMOGENEOUS
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};
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#define GTK_BOX_SECONDARY_CHILD "gtk-box-secondary-child"
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#define GTK_BOX_NON_HOMOGENEOUS "gtk-box-non-homogeneous"
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static void gtk_button_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_button_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_button_box_snapshot (GtkWidget *widget,
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GtkSnapshot *snapshot);
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static void gtk_button_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_button_box_size_allocate (GtkWidget *widget,
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GtkAllocation *allocation);
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static void gtk_button_box_remove (GtkContainer *container,
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GtkWidget *widget);
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static void gtk_button_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_button_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 void gtk_button_box_measure (GtkCssGadget *gadget,
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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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gpointer unused);
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static void gtk_button_box_allocate (GtkCssGadget *gadget,
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const GtkAllocation *allocation,
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int baseline,
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GtkAllocation *out_clip,
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gpointer unused);
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static gboolean gtk_button_box_render (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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#define DEFAULT_LAYOUT_STYLE GTK_BUTTONBOX_EDGE
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G_DEFINE_TYPE_WITH_PRIVATE (GtkButtonBox, gtk_button_box, GTK_TYPE_BOX)
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static void
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gtk_button_box_add (GtkContainer *container,
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GtkWidget *widget)
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{
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gtk_box_pack_start (GTK_BOX (container), widget, TRUE, TRUE);
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}
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static void
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gtk_button_box_finalize (GObject *object)
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{
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GtkButtonBox *button_box = GTK_BUTTON_BOX (object);
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g_clear_object (&button_box->priv->gadget);
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G_OBJECT_CLASS (gtk_button_box_parent_class)->finalize (object);
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}
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static void
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gtk_button_box_class_init (GtkButtonBoxClass *class)
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{
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GtkWidgetClass *widget_class;
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GObjectClass *gobject_class;
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GtkContainerClass *container_class;
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gobject_class = G_OBJECT_CLASS (class);
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widget_class = (GtkWidgetClass*) class;
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container_class = (GtkContainerClass*) class;
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gobject_class->set_property = gtk_button_box_set_property;
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gobject_class->get_property = gtk_button_box_get_property;
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gobject_class->finalize = gtk_button_box_finalize;
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widget_class->measure = gtk_button_box_measure_;
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widget_class->size_allocate = gtk_button_box_size_allocate;
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widget_class->snapshot= gtk_button_box_snapshot;
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container_class->remove = gtk_button_box_remove;
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container_class->add = gtk_button_box_add;
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container_class->set_child_property = gtk_button_box_set_child_property;
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container_class->get_child_property = gtk_button_box_get_child_property;
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g_object_class_install_property (gobject_class,
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PROP_LAYOUT_STYLE,
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g_param_spec_enum ("layout-style",
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P_("Layout style"),
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P_("How to lay out the buttons in the box. Possible values are: spread, edge, start and end"),
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GTK_TYPE_BUTTON_BOX_STYLE,
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DEFAULT_LAYOUT_STYLE,
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GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY));
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gtk_container_class_install_child_property (container_class,
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CHILD_PROP_SECONDARY,
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g_param_spec_boolean ("secondary",
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P_("Secondary"),
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P_("If TRUE, the child appears in a secondary group of children, suitable for, e.g., help buttons"),
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FALSE,
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GTK_PARAM_READWRITE));
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gtk_container_class_install_child_property (container_class,
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CHILD_PROP_NONHOMOGENEOUS,
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g_param_spec_boolean ("non-homogeneous",
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P_("Non-Homogeneous"),
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P_("If TRUE, the child will not be subject to homogeneous sizing"),
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FALSE,
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GTK_PARAM_READWRITE));
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gtk_widget_class_set_css_name (widget_class, "buttonbox");
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}
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static void
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gtk_button_box_snapshot_forall (GtkWidget *child,
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gpointer snapshot)
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{
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gtk_widget_snapshot_child (gtk_widget_get_parent (child),
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child,
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snapshot);
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}
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static gboolean
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gtk_button_box_render (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 unused)
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{
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gtk_container_forall (GTK_CONTAINER (gtk_css_gadget_get_owner (gadget)),
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gtk_button_box_snapshot_forall,
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snapshot);
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return FALSE;
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}
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static void
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gtk_button_box_snapshot (GtkWidget *widget,
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GtkSnapshot *snapshot)
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{
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GtkButtonBoxPrivate *priv = GTK_BUTTON_BOX (widget)->priv;
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GtkCssGadget *gadget;
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if (priv->layout_style == GTK_BUTTONBOX_EXPAND)
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gadget = gtk_box_get_gadget (GTK_BOX (widget));
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else
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gadget = priv->gadget;
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gtk_css_gadget_snapshot (gadget, snapshot);
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}
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static void
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gtk_button_box_init (GtkButtonBox *button_box)
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{
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button_box->priv = gtk_button_box_get_instance_private (button_box);
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button_box->priv->layout_style = DEFAULT_LAYOUT_STYLE;
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gtk_box_set_spacing (GTK_BOX (button_box), 0);
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button_box->priv->gadget = gtk_css_custom_gadget_new_for_node (gtk_widget_get_css_node (GTK_WIDGET (button_box)),
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GTK_WIDGET (button_box),
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gtk_button_box_measure,
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gtk_button_box_allocate,
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gtk_button_box_render,
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NULL,
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NULL);
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}
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static void
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gtk_button_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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switch (prop_id)
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{
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case PROP_LAYOUT_STYLE:
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gtk_button_box_set_layout (GTK_BUTTON_BOX (object),
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g_value_get_enum (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_button_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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GtkButtonBoxPrivate *priv = GTK_BUTTON_BOX (object)->priv;
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switch (prop_id)
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{
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case PROP_LAYOUT_STYLE:
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g_value_set_enum (value, priv->layout_style);
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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_button_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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{
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switch (property_id)
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{
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case CHILD_PROP_SECONDARY:
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gtk_button_box_set_child_secondary (GTK_BUTTON_BOX (container), child,
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g_value_get_boolean (value));
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break;
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case CHILD_PROP_NONHOMOGENEOUS:
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gtk_button_box_set_child_non_homogeneous (GTK_BUTTON_BOX (container), child,
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g_value_get_boolean (value));
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break;
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default:
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GTK_CONTAINER_WARN_INVALID_CHILD_PROPERTY_ID (container, property_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_button_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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{
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switch (property_id)
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{
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case CHILD_PROP_SECONDARY:
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g_value_set_boolean (value,
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gtk_button_box_get_child_secondary (GTK_BUTTON_BOX (container),
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child));
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break;
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case CHILD_PROP_NONHOMOGENEOUS:
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g_value_set_boolean (value,
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gtk_button_box_get_child_non_homogeneous (GTK_BUTTON_BOX (container),
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child));
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break;
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default:
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GTK_CONTAINER_WARN_INVALID_CHILD_PROPERTY_ID (container, property_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_button_box_remove (GtkContainer *container,
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GtkWidget *widget)
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{
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/* clear is_secondary and nonhomogeneous flag in case the widget
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* is added to another container
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*/
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gtk_button_box_set_child_secondary (GTK_BUTTON_BOX (container), widget, FALSE);
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gtk_button_box_set_child_non_homogeneous (GTK_BUTTON_BOX (container), widget, FALSE);
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GTK_CONTAINER_CLASS (gtk_button_box_parent_class)->remove (container, widget);
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}
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/**
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* gtk_button_box_set_layout:
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* @widget: a #GtkButtonBox
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* @layout_style: the new layout style
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*
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* Changes the way buttons are arranged in their container.
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*/
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void
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gtk_button_box_set_layout (GtkButtonBox *widget,
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GtkButtonBoxStyle layout_style)
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{
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GtkButtonBoxPrivate *priv;
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g_return_if_fail (GTK_IS_BUTTON_BOX (widget));
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priv = widget->priv;
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if (priv->layout_style != layout_style)
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{
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priv->layout_style = layout_style;
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if (priv->layout_style == GTK_BUTTONBOX_EXPAND)
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{
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gtk_style_context_add_class (gtk_widget_get_style_context (GTK_WIDGET (widget)), "linked");
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gtk_box_set_spacing (GTK_BOX (widget), 0);
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gtk_box_set_homogeneous (GTK_BOX (widget), TRUE);
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}
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else
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{
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gtk_style_context_remove_class (gtk_widget_get_style_context (GTK_WIDGET (widget)), "linked");
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gtk_box_set_homogeneous (GTK_BOX (widget), FALSE);
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}
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g_object_notify (G_OBJECT (widget), "layout-style");
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gtk_widget_queue_resize (GTK_WIDGET (widget));
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}
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}
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/**
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* gtk_button_box_get_layout:
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* @widget: a #GtkButtonBox
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*
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* Retrieves the method being used to arrange the buttons in a button box.
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*
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* Returns: the method used to lay out buttons in @widget.
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*/
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GtkButtonBoxStyle
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gtk_button_box_get_layout (GtkButtonBox *widget)
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{
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g_return_val_if_fail (GTK_IS_BUTTON_BOX (widget), DEFAULT_LAYOUT_STYLE);
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return widget->priv->layout_style;
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}
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/**
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* gtk_button_box_get_child_secondary:
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* @widget: a #GtkButtonBox
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* @child: a child of @widget
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*
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* Returns whether @child should appear in a secondary group of children.
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*
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* Returns: whether @child should appear in a secondary group of children.
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*
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* Since: 2.4
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**/
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gboolean
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gtk_button_box_get_child_secondary (GtkButtonBox *widget,
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GtkWidget *child)
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{
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g_return_val_if_fail (GTK_IS_BUTTON_BOX (widget), FALSE);
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g_return_val_if_fail (GTK_IS_WIDGET (child), FALSE);
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return (g_object_get_data (G_OBJECT (child), GTK_BOX_SECONDARY_CHILD) != NULL);
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}
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/**
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* gtk_button_box_set_child_secondary:
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* @widget: a #GtkButtonBox
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* @child: a child of @widget
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* @is_secondary: if %TRUE, the @child appears in a secondary group of the
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* button box.
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*
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* Sets whether @child should appear in a secondary group of children.
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* A typical use of a secondary child is the help button in a dialog.
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*
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* This group appears after the other children if the style
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* is %GTK_BUTTONBOX_START, %GTK_BUTTONBOX_SPREAD or
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* %GTK_BUTTONBOX_EDGE, and before the other children if the style
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* is %GTK_BUTTONBOX_END. For horizontal button boxes, the definition
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* of before/after depends on direction of the widget (see
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* gtk_widget_set_direction()). If the style is %GTK_BUTTONBOX_START
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* or %GTK_BUTTONBOX_END, then the secondary children are aligned at
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* the other end of the button box from the main children. For the
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* other styles, they appear immediately next to the main children.
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**/
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void
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gtk_button_box_set_child_secondary (GtkButtonBox *widget,
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GtkWidget *child,
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gboolean is_secondary)
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{
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GtkButtonBox *bbox;
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g_return_if_fail (GTK_IS_BUTTON_BOX (widget));
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g_return_if_fail (GTK_IS_WIDGET (child));
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g_return_if_fail (gtk_widget_get_parent (child) == GTK_WIDGET (widget));
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bbox = GTK_BUTTON_BOX (widget);
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g_object_set_data (G_OBJECT (child),
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GTK_BOX_SECONDARY_CHILD,
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is_secondary ? GINT_TO_POINTER (1) : NULL);
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gtk_widget_child_notify (child, "secondary");
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if (bbox->priv->layout_style == GTK_BUTTONBOX_EXPAND)
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{
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gtk_box_reorder_child (GTK_BOX (bbox), child, is_secondary ? 0 : -1);
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}
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if (gtk_widget_get_visible (GTK_WIDGET (widget)) &&
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gtk_widget_get_visible (child))
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gtk_widget_queue_resize (child);
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}
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/* Ask children how much space they require and round up
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* to match minimum size and internal padding.
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* Returns the size each single child should have.
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*/
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static void
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gtk_button_box_child_requisition (GtkWidget *widget,
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gint *nvis_children,
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gint *nvis_secondaries,
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gint **widths,
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gint **heights,
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gint **baselines,
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gint *baseline,
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gint *baseline_height)
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{
|
|
GtkButtonBox *bbox;
|
|
GList *children, *list;
|
|
gint nchildren;
|
|
gint nsecondaries;
|
|
gint needed_width;
|
|
gint needed_height;
|
|
gint needed_above, needed_below;
|
|
gint avg_w, avg_h;
|
|
GtkRequisition child_requisition;
|
|
gint ipad_w;
|
|
gint ipad_h;
|
|
gboolean homogeneous;
|
|
gint i;
|
|
gint max_above, max_below, child_baseline;
|
|
GtkOrientation orientation;
|
|
gboolean have_baseline;
|
|
|
|
g_return_if_fail (GTK_IS_BUTTON_BOX (widget));
|
|
|
|
bbox = GTK_BUTTON_BOX (widget);
|
|
|
|
orientation = gtk_orientable_get_orientation (GTK_ORIENTABLE (widget));
|
|
homogeneous = gtk_box_get_homogeneous (GTK_BOX (widget));
|
|
|
|
|
|
nchildren = 0;
|
|
nsecondaries = 0;
|
|
list = children = _gtk_box_get_children (GTK_BOX (bbox));
|
|
needed_width = 0;
|
|
needed_height = 0;
|
|
needed_above = 0;
|
|
needed_below = 0;
|
|
ipad_w = 0;
|
|
ipad_h = 0;
|
|
|
|
have_baseline = FALSE;
|
|
max_above = max_below = 0;
|
|
avg_w = avg_h = 0;
|
|
for (children = list; children != NULL; children = children->next)
|
|
{
|
|
GtkWidget *child;
|
|
|
|
child = children->data;
|
|
|
|
if (gtk_widget_get_visible (child))
|
|
{
|
|
nchildren += 1;
|
|
_gtk_widget_get_preferred_size_and_baseline (child,
|
|
&child_requisition, NULL, &child_baseline, NULL);
|
|
if (orientation == GTK_ORIENTATION_HORIZONTAL &&
|
|
gtk_widget_get_valign (child) == GTK_ALIGN_BASELINE &&
|
|
child_baseline != -1)
|
|
{
|
|
have_baseline = TRUE;
|
|
max_above = MAX (max_above, child_baseline);
|
|
max_below = MAX (max_below , child_requisition.height + ipad_h - (child_baseline));
|
|
}
|
|
avg_w += child_requisition.width + ipad_w;
|
|
avg_h += child_requisition.height + ipad_h;
|
|
}
|
|
}
|
|
avg_w /= MAX (nchildren, 1);
|
|
avg_h /= MAX (nchildren, 1);
|
|
|
|
if (baseline)
|
|
*baseline = have_baseline ? max_above : -1;
|
|
if (baseline_height)
|
|
*baseline_height = max_above + max_below;
|
|
|
|
*widths = g_new (gint, nchildren);
|
|
*heights = g_new (gint, nchildren);
|
|
*baselines = g_new (gint, nchildren);
|
|
|
|
i = 0;
|
|
children = list;
|
|
while (children)
|
|
{
|
|
GtkWidget *child;
|
|
gboolean is_secondary;
|
|
gboolean non_homogeneous;
|
|
|
|
child = children->data;
|
|
children = children->next;
|
|
|
|
if (gtk_widget_get_visible (child))
|
|
{
|
|
is_secondary = gtk_button_box_get_child_secondary (bbox, child);
|
|
non_homogeneous = gtk_button_box_get_child_non_homogeneous (bbox, child);
|
|
|
|
if (is_secondary)
|
|
nsecondaries++;
|
|
|
|
_gtk_widget_get_preferred_size_and_baseline (child,
|
|
&child_requisition, NULL, &child_baseline, NULL);
|
|
|
|
if (homogeneous ||
|
|
(!non_homogeneous && (child_requisition.width + ipad_w < avg_w * 1.5)))
|
|
{
|
|
(*widths)[i] = -1;
|
|
if (child_requisition.width + ipad_w > needed_width)
|
|
needed_width = child_requisition.width + ipad_w;
|
|
}
|
|
else
|
|
{
|
|
(*widths)[i] = child_requisition.width + ipad_w;
|
|
}
|
|
|
|
(*baselines)[i] = -1;
|
|
|
|
if (homogeneous ||
|
|
(!non_homogeneous && (child_requisition.height + ipad_h < avg_h * 1.5)))
|
|
{
|
|
(*heights)[i] = -1;
|
|
|
|
if (orientation == GTK_ORIENTATION_HORIZONTAL &&
|
|
gtk_widget_get_valign (child) == GTK_ALIGN_BASELINE &&
|
|
child_baseline != -1)
|
|
{
|
|
(*baselines)[i] = child_baseline;
|
|
|
|
if (child_baseline > needed_above)
|
|
needed_above = child_baseline;
|
|
if (child_requisition.height - child_baseline > needed_below)
|
|
needed_below = child_requisition.height - child_baseline;
|
|
}
|
|
else
|
|
{
|
|
if (child_requisition.height + ipad_h > needed_height)
|
|
needed_height = child_requisition.height + ipad_h;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
(*heights)[i] = child_requisition.height + ipad_h;
|
|
|
|
if (orientation == GTK_ORIENTATION_HORIZONTAL &&
|
|
gtk_widget_get_valign (child) == GTK_ALIGN_BASELINE &&
|
|
child_baseline != -1)
|
|
(*baselines)[i] = child_baseline;
|
|
}
|
|
|
|
i++;
|
|
}
|
|
}
|
|
|
|
g_list_free (list);
|
|
|
|
needed_height = MAX (needed_height, needed_above + needed_below);
|
|
|
|
for (i = 0; i < nchildren; i++)
|
|
{
|
|
if ((*widths)[i] == -1)
|
|
(*widths)[i] = needed_width;
|
|
if ((*heights)[i] == -1)
|
|
{
|
|
(*heights)[i] = needed_height;
|
|
if ((*baselines)[i] != -1)
|
|
(*baselines)[i] = needed_above;
|
|
}
|
|
}
|
|
|
|
if (nvis_children)
|
|
*nvis_children = nchildren;
|
|
|
|
if (nvis_secondaries)
|
|
*nvis_secondaries = nsecondaries;
|
|
}
|
|
|
|
static void
|
|
gtk_button_box_size_request (GtkWidget *widget,
|
|
GtkRequisition *requisition,
|
|
gint *baseline)
|
|
{
|
|
GtkButtonBoxPrivate *priv;
|
|
GtkButtonBox *bbox;
|
|
gint nvis_children;
|
|
gint max_size, max_above, max_below;
|
|
gint total_size;
|
|
gint spacing;
|
|
GtkOrientation orientation;
|
|
gint *widths;
|
|
gint *heights;
|
|
gint *baselines;
|
|
gint i;
|
|
|
|
if (baseline)
|
|
*baseline = -1;
|
|
|
|
bbox = GTK_BUTTON_BOX (widget);
|
|
priv = bbox->priv;
|
|
|
|
orientation = gtk_orientable_get_orientation (GTK_ORIENTABLE (widget));
|
|
spacing = gtk_box_get_spacing (GTK_BOX (widget));
|
|
|
|
gtk_button_box_child_requisition (widget,
|
|
&nvis_children,
|
|
NULL,
|
|
&widths, &heights, &baselines, baseline, NULL);
|
|
|
|
max_size = max_above = max_below = 0;
|
|
total_size = 0;
|
|
for (i = 0; i < nvis_children; i++)
|
|
{
|
|
if (orientation == GTK_ORIENTATION_HORIZONTAL)
|
|
{
|
|
total_size += widths[i];
|
|
if (baselines[i] == -1)
|
|
max_size = MAX (max_size, heights[i]);
|
|
else
|
|
{
|
|
max_above = MAX (max_above, baselines[i]);
|
|
max_below = MAX (max_below, heights[i] - baselines[i]);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
total_size += heights[i];
|
|
max_size = MAX (max_size, widths[i]);
|
|
}
|
|
}
|
|
g_free (widths);
|
|
g_free (heights);
|
|
g_free (baselines);
|
|
|
|
max_size = MAX (max_size, max_above + max_below);
|
|
|
|
switch (gtk_box_get_baseline_position (GTK_BOX (widget)))
|
|
{
|
|
case GTK_BASELINE_POSITION_TOP:
|
|
break;
|
|
case GTK_BASELINE_POSITION_CENTER:
|
|
if (baseline != NULL && *baseline != -1)
|
|
*baseline += (max_size - (max_above + max_below)) / 2;
|
|
break;
|
|
case GTK_BASELINE_POSITION_BOTTOM:
|
|
if (baseline != NULL && *baseline != -1)
|
|
*baseline += max_size - (max_above + max_below);
|
|
break;
|
|
}
|
|
|
|
if (nvis_children == 0)
|
|
{
|
|
requisition->width = 0;
|
|
requisition->height = 0;
|
|
}
|
|
else
|
|
{
|
|
switch (priv->layout_style)
|
|
{
|
|
case GTK_BUTTONBOX_SPREAD:
|
|
if (orientation == GTK_ORIENTATION_HORIZONTAL)
|
|
requisition->width = total_size + ((nvis_children + 1)*spacing);
|
|
else
|
|
requisition->height = total_size + ((nvis_children + 1)*spacing);
|
|
|
|
break;
|
|
case GTK_BUTTONBOX_EDGE:
|
|
case GTK_BUTTONBOX_START:
|
|
case GTK_BUTTONBOX_END:
|
|
case GTK_BUTTONBOX_CENTER:
|
|
case GTK_BUTTONBOX_EXPAND:
|
|
if (orientation == GTK_ORIENTATION_HORIZONTAL)
|
|
requisition->width = total_size + ((nvis_children - 1)*spacing);
|
|
else
|
|
requisition->height = total_size + ((nvis_children - 1)*spacing);
|
|
|
|
break;
|
|
default:
|
|
g_assert_not_reached ();
|
|
break;
|
|
}
|
|
|
|
if (orientation == GTK_ORIENTATION_HORIZONTAL)
|
|
requisition->height = max_size;
|
|
else
|
|
requisition->width = max_size;
|
|
}
|
|
}
|
|
|
|
static void
|
|
gtk_button_box_measure (GtkCssGadget *gadget,
|
|
GtkOrientation orientation,
|
|
int for_size,
|
|
int *minimum,
|
|
int *natural,
|
|
int *minimum_baseline,
|
|
int *natural_baseline,
|
|
gpointer unused)
|
|
{
|
|
GtkWidget *widget;
|
|
GtkRequisition requisition;
|
|
int baseline;
|
|
int *pb;
|
|
|
|
if (minimum_baseline || natural_baseline)
|
|
pb = &baseline;
|
|
else
|
|
pb = NULL;
|
|
|
|
widget = gtk_css_gadget_get_owner (gadget);
|
|
gtk_button_box_size_request (widget, &requisition, pb);
|
|
|
|
if (orientation == GTK_ORIENTATION_HORIZONTAL)
|
|
*minimum = *natural = requisition.width;
|
|
else
|
|
*minimum = *natural = requisition.height;
|
|
|
|
if (minimum_baseline)
|
|
*minimum_baseline = baseline;
|
|
if (natural_baseline)
|
|
*natural_baseline = baseline;
|
|
}
|
|
|
|
static void
|
|
gtk_button_box_measure_ (GtkWidget *widget,
|
|
GtkOrientation orientation,
|
|
int for_size,
|
|
int *minimum,
|
|
int *natural,
|
|
int *minimum_baseline,
|
|
int *natural_baseline)
|
|
{
|
|
GtkButtonBoxPrivate *priv = gtk_button_box_get_instance_private (GTK_BUTTON_BOX (widget));
|
|
GtkCssGadget *gadget;
|
|
|
|
if (priv->layout_style == GTK_BUTTONBOX_EXPAND)
|
|
gadget = gtk_box_get_gadget (GTK_BOX (widget));
|
|
else
|
|
gadget = priv->gadget;
|
|
|
|
gtk_css_gadget_get_preferred_size (gadget,
|
|
orientation,
|
|
for_size,
|
|
minimum, natural,
|
|
minimum_baseline, natural_baseline);
|
|
}
|
|
|
|
static void
|
|
gtk_button_box_size_allocate (GtkWidget *widget,
|
|
GtkAllocation *allocation)
|
|
{
|
|
GtkButtonBoxPrivate *priv = GTK_BUTTON_BOX (widget)->priv;
|
|
GtkCssGadget *gadget;
|
|
GdkRectangle clip;
|
|
|
|
if (priv->layout_style == GTK_BUTTONBOX_EXPAND)
|
|
gadget = gtk_box_get_gadget (GTK_BOX (widget));
|
|
else
|
|
gadget = priv->gadget;
|
|
|
|
gtk_widget_set_allocation (widget, allocation);
|
|
|
|
gtk_css_gadget_allocate (gadget,
|
|
allocation,
|
|
gtk_widget_get_allocated_baseline (widget),
|
|
&clip);
|
|
|
|
gtk_widget_set_clip (widget, &clip);
|
|
}
|
|
|
|
static void
|
|
gtk_button_box_allocate (GtkCssGadget *gadget,
|
|
const GtkAllocation *allocation,
|
|
int baseline,
|
|
GtkAllocation *out_clip,
|
|
gpointer unused)
|
|
{
|
|
GtkWidget *widget;
|
|
GtkButtonBoxPrivate *priv;
|
|
GtkButtonBox *bbox;
|
|
GList *children, *list;
|
|
GtkAllocation child_allocation;
|
|
gint nvis_children;
|
|
gint n_primaries;
|
|
gint n_secondaries;
|
|
gint x = 0;
|
|
gint y = 0;
|
|
gint secondary_x = 0;
|
|
gint secondary_y = 0;
|
|
gint width = 0;
|
|
gint height = 0;
|
|
gint childspacing = 0;
|
|
gint spacing;
|
|
GtkOrientation orientation;
|
|
gint *widths;
|
|
gint *heights;
|
|
gint *baselines;
|
|
gint *sizes;
|
|
gint primary_size;
|
|
gint secondary_size;
|
|
gint total_size;
|
|
gint baseline_height;
|
|
gint child_baseline;
|
|
gint i;
|
|
|
|
widget = gtk_css_gadget_get_owner (gadget);
|
|
bbox = GTK_BUTTON_BOX (widget);
|
|
priv = bbox->priv;
|
|
|
|
orientation = gtk_orientable_get_orientation (GTK_ORIENTABLE (widget));
|
|
spacing = gtk_box_get_spacing (GTK_BOX (widget));
|
|
|
|
gtk_button_box_child_requisition (widget,
|
|
&nvis_children,
|
|
&n_secondaries,
|
|
&widths, &heights, &baselines, &baseline, &baseline_height);
|
|
|
|
if (baseline != -1)
|
|
{
|
|
/* TODO: modify baseline based on baseline_pos && allocated_baseline*/
|
|
switch (gtk_box_get_baseline_position (GTK_BOX (widget)))
|
|
{
|
|
case GTK_BASELINE_POSITION_TOP:
|
|
/* keep baseline as is */
|
|
break;
|
|
case GTK_BASELINE_POSITION_CENTER:
|
|
baseline = baseline + (allocation->height - baseline_height) / 2;
|
|
break;
|
|
case GTK_BASELINE_POSITION_BOTTOM:
|
|
baseline = allocation->height - (baseline_height - baseline);
|
|
break;
|
|
}
|
|
}
|
|
|
|
n_primaries = nvis_children - n_secondaries;
|
|
primary_size = 0;
|
|
secondary_size = 0;
|
|
if (orientation == GTK_ORIENTATION_HORIZONTAL)
|
|
sizes = widths;
|
|
else
|
|
sizes = heights;
|
|
|
|
i = 0;
|
|
list = children = _gtk_box_get_children (GTK_BOX (widget));
|
|
while (children)
|
|
{
|
|
GtkWidget *child;
|
|
|
|
child = children->data;
|
|
children = children->next;
|
|
|
|
if (gtk_widget_get_visible (child))
|
|
{
|
|
if (gtk_button_box_get_child_secondary (bbox, child))
|
|
secondary_size += sizes[i];
|
|
else
|
|
primary_size += sizes[i];
|
|
i++;
|
|
}
|
|
}
|
|
total_size = primary_size + secondary_size;
|
|
|
|
if (orientation == GTK_ORIENTATION_HORIZONTAL)
|
|
width = allocation->width;
|
|
else
|
|
height = allocation->height;
|
|
|
|
switch (priv->layout_style)
|
|
{
|
|
case GTK_BUTTONBOX_SPREAD:
|
|
|
|
if (orientation == GTK_ORIENTATION_HORIZONTAL)
|
|
{
|
|
childspacing = (width - total_size) / (nvis_children + 1);
|
|
x = allocation->x + childspacing;
|
|
secondary_x = x + primary_size + n_primaries * childspacing;
|
|
}
|
|
else
|
|
{
|
|
childspacing = (height - total_size) / (nvis_children + 1);
|
|
y = allocation->y + childspacing;
|
|
secondary_y = y + primary_size + n_primaries * childspacing;
|
|
}
|
|
|
|
break;
|
|
|
|
case GTK_BUTTONBOX_EDGE:
|
|
|
|
if (orientation == GTK_ORIENTATION_HORIZONTAL)
|
|
{
|
|
if (nvis_children >= 2)
|
|
{
|
|
childspacing = (width - total_size) / (nvis_children - 1);
|
|
x = allocation->x;
|
|
secondary_x = x + primary_size + n_primaries * childspacing;
|
|
}
|
|
else if (nvis_children == 1)
|
|
{
|
|
/* one child, just center */
|
|
childspacing = width;
|
|
x = secondary_x = allocation->x
|
|
+ (allocation->width - widths[0]) / 2;
|
|
}
|
|
else
|
|
{
|
|
/* zero children, meh */
|
|
childspacing = width;
|
|
x = secondary_x = allocation->x + allocation->width / 2;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if (nvis_children >= 2)
|
|
{
|
|
childspacing = (height - total_size) / (nvis_children - 1);
|
|
y = allocation->y;
|
|
secondary_y = y + primary_size + n_primaries * childspacing;
|
|
}
|
|
else if (nvis_children == 1)
|
|
{
|
|
/* one child, just center */
|
|
childspacing = height;
|
|
y = secondary_y = allocation->y
|
|
+ (allocation->height - heights[0]) / 2;
|
|
}
|
|
else
|
|
{
|
|
/* zero children, meh */
|
|
childspacing = height;
|
|
y = secondary_y = allocation->y + allocation->height / 2;
|
|
}
|
|
}
|
|
|
|
break;
|
|
|
|
case GTK_BUTTONBOX_START:
|
|
|
|
if (orientation == GTK_ORIENTATION_HORIZONTAL)
|
|
{
|
|
childspacing = spacing;
|
|
x = allocation->x;
|
|
secondary_x = allocation->x + allocation->width
|
|
- secondary_size - spacing * (n_secondaries - 1);
|
|
}
|
|
else
|
|
{
|
|
childspacing = spacing;
|
|
y = allocation->y;
|
|
secondary_y = allocation->y + allocation->height
|
|
- secondary_size - spacing * (n_secondaries - 1);
|
|
}
|
|
|
|
break;
|
|
|
|
case GTK_BUTTONBOX_END:
|
|
|
|
if (orientation == GTK_ORIENTATION_HORIZONTAL)
|
|
{
|
|
childspacing = spacing;
|
|
x = allocation->x + allocation->width
|
|
- primary_size - spacing * (n_primaries - 1);
|
|
secondary_x = allocation->x;
|
|
}
|
|
else
|
|
{
|
|
childspacing = spacing;
|
|
y = allocation->y + allocation->height
|
|
- primary_size - spacing * (n_primaries - 1);
|
|
secondary_y = allocation->y;
|
|
}
|
|
|
|
break;
|
|
|
|
case GTK_BUTTONBOX_CENTER:
|
|
|
|
if (orientation == GTK_ORIENTATION_HORIZONTAL)
|
|
{
|
|
childspacing = spacing;
|
|
x = allocation->x +
|
|
(allocation->width
|
|
- (primary_size + spacing * (n_primaries - 1))) / 2
|
|
+ (secondary_size + n_secondaries * spacing) / 2;
|
|
secondary_x = allocation->x;
|
|
}
|
|
else
|
|
{
|
|
childspacing = spacing;
|
|
y = allocation->y +
|
|
(allocation->height
|
|
- (primary_size + spacing * (n_primaries - 1))) / 2
|
|
+ (secondary_size + n_secondaries * spacing) / 2;
|
|
secondary_y = allocation->y;
|
|
}
|
|
|
|
break;
|
|
|
|
default:
|
|
g_assert_not_reached ();
|
|
break;
|
|
}
|
|
|
|
children = list;
|
|
i = 0;
|
|
while (children)
|
|
{
|
|
GtkWidget *child;
|
|
|
|
child = children->data;
|
|
children = children->next;
|
|
|
|
if (gtk_widget_get_visible (child))
|
|
{
|
|
child_allocation.width = widths[i];
|
|
child_allocation.height = heights[i];
|
|
child_baseline = -1;
|
|
|
|
if (orientation == GTK_ORIENTATION_HORIZONTAL)
|
|
{
|
|
if (baselines[i] != -1)
|
|
{
|
|
child_allocation.y = allocation->y + baseline - baselines[i];
|
|
child_baseline = baselines[i];
|
|
}
|
|
else
|
|
child_allocation.y = allocation->y + (allocation->height - child_allocation.height) / 2;
|
|
|
|
if (gtk_button_box_get_child_secondary (bbox, child))
|
|
{
|
|
child_allocation.x = secondary_x;
|
|
secondary_x += child_allocation.width + childspacing;
|
|
}
|
|
else
|
|
{
|
|
child_allocation.x = x;
|
|
x += child_allocation.width + childspacing;
|
|
}
|
|
|
|
if (gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL)
|
|
child_allocation.x = (allocation->x + allocation->width)
|
|
- (child_allocation.x + child_allocation.width - allocation->x);
|
|
}
|
|
else
|
|
{
|
|
child_allocation.x = allocation->x + (allocation->width - child_allocation.width) / 2;
|
|
|
|
if (gtk_button_box_get_child_secondary (bbox, child))
|
|
{
|
|
child_allocation.y = secondary_y;
|
|
secondary_y += child_allocation.height + childspacing;
|
|
}
|
|
else
|
|
{
|
|
child_allocation.y = y;
|
|
y += child_allocation.height + childspacing;
|
|
}
|
|
}
|
|
|
|
gtk_widget_size_allocate_with_baseline (child, &child_allocation, child_baseline);
|
|
i++;
|
|
}
|
|
}
|
|
|
|
g_list_free (list);
|
|
g_free (widths);
|
|
g_free (heights);
|
|
g_free (baselines);
|
|
|
|
gtk_container_get_children_clip (GTK_CONTAINER (widget), out_clip);
|
|
}
|
|
|
|
/**
|
|
* gtk_button_box_new:
|
|
* @orientation: the box's orientation.
|
|
*
|
|
* Creates a new #GtkButtonBox.
|
|
*
|
|
* Returns: a new #GtkButtonBox.
|
|
*
|
|
* Since: 3.0
|
|
*/
|
|
GtkWidget *
|
|
gtk_button_box_new (GtkOrientation orientation)
|
|
{
|
|
return g_object_new (GTK_TYPE_BUTTON_BOX,
|
|
"orientation", orientation,
|
|
NULL);
|
|
}
|
|
|
|
/**
|
|
* gtk_button_box_get_child_non_homogeneous:
|
|
* @widget: a #GtkButtonBox
|
|
* @child: a child of @widget
|
|
*
|
|
* Returns whether the child is exempted from homogenous
|
|
* sizing.
|
|
*
|
|
* Returns: %TRUE if the child is not subject to homogenous sizing
|
|
*
|
|
* Since: 3.2
|
|
*/
|
|
gboolean
|
|
gtk_button_box_get_child_non_homogeneous (GtkButtonBox *widget,
|
|
GtkWidget *child)
|
|
{
|
|
g_return_val_if_fail (GTK_IS_BUTTON_BOX (widget), FALSE);
|
|
g_return_val_if_fail (GTK_IS_WIDGET (child), FALSE);
|
|
|
|
return (g_object_get_data (G_OBJECT (child), GTK_BOX_NON_HOMOGENEOUS) != NULL);
|
|
}
|
|
|
|
/**
|
|
* gtk_button_box_set_child_non_homogeneous:
|
|
* @widget: a #GtkButtonBox
|
|
* @child: a child of @widget
|
|
* @non_homogeneous: the new value
|
|
*
|
|
* Sets whether the child is exempted from homogeous sizing.
|
|
*
|
|
* Since: 3.2
|
|
*/
|
|
void
|
|
gtk_button_box_set_child_non_homogeneous (GtkButtonBox *widget,
|
|
GtkWidget *child,
|
|
gboolean non_homogeneous)
|
|
{
|
|
g_return_if_fail (GTK_IS_BUTTON_BOX (widget));
|
|
g_return_if_fail (GTK_IS_WIDGET (child));
|
|
g_return_if_fail (gtk_widget_get_parent (child) == GTK_WIDGET (widget));
|
|
|
|
g_object_set_data (G_OBJECT (child),
|
|
GTK_BOX_NON_HOMOGENEOUS,
|
|
non_homogeneous ? GINT_TO_POINTER (1) : NULL);
|
|
gtk_widget_child_notify (child, "non-homogeneous");
|
|
|
|
if (gtk_widget_get_visible (GTK_WIDGET (widget)) &&
|
|
gtk_widget_get_visible (child))
|
|
gtk_widget_queue_resize (child);
|
|
}
|