gtk2/gtk/inspector/gtkstackcombo.c
2017-07-19 21:27:11 -04:00

289 lines
8.1 KiB
C

/*
* Copyright (c) 2016 Red Hat, Inc.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation; either version 2 of the License, or (at your
* option) any later version.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
* License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
*/
#include "config.h"
#include "gtkstackcombo.h"
#include "gtkbox.h"
#include "gtkstack.h"
#include "gtkcomboboxtext.h"
#include "gtkprivate.h"
#include "gtkintl.h"
struct _GtkStackCombo
{
GtkWidget parent_instance;
GtkComboBox *combo;
GtkStack *stack;
GBinding *binding;
};
struct _GtkStackComboClass {
GtkWidgetClass parent_class;
};
enum {
PROP_0,
PROP_STACK
};
G_DEFINE_TYPE (GtkStackCombo, gtk_stack_combo, GTK_TYPE_WIDGET)
static void
gtk_stack_combo_init (GtkStackCombo *self)
{
gtk_widget_set_has_window (GTK_WIDGET (self), FALSE);
self->stack = NULL;
self->combo = GTK_COMBO_BOX (gtk_combo_box_text_new ());
gtk_widget_set_parent (GTK_WIDGET (self->combo), GTK_WIDGET (self));
}
static void gtk_stack_combo_set_stack (GtkStackCombo *self,
GtkStack *stack);
static void
rebuild_combo (GtkStackCombo *self)
{
gtk_stack_combo_set_stack (self, self->stack);
}
static void
on_child_visible_changed (GtkStackCombo *self)
{
rebuild_combo (self);
}
static void
add_child (GtkWidget *widget,
GtkStackCombo *self)
{
g_signal_handlers_disconnect_by_func (widget, G_CALLBACK (on_child_visible_changed), self);
g_signal_connect_swapped (widget, "notify::visible", G_CALLBACK (on_child_visible_changed), self);
if (gtk_widget_get_visible (widget))
{
char *name, *title;
gtk_container_child_get (GTK_CONTAINER (self->stack), widget,
"name", &name,
"title", &title,
NULL);
gtk_combo_box_text_append (GTK_COMBO_BOX_TEXT (self->combo), name, title);
g_free (name);
g_free (title);
}
}
static void
populate_combo (GtkStackCombo *self)
{
gtk_container_foreach (GTK_CONTAINER (self->stack), (GtkCallback)add_child, self);
}
static void
clear_combo (GtkStackCombo *self)
{
gtk_combo_box_text_remove_all (GTK_COMBO_BOX_TEXT (self->combo));
}
static void
on_stack_child_added (GtkContainer *container,
GtkWidget *widget,
GtkStackCombo *self)
{
rebuild_combo (self);
}
static void
on_stack_child_removed (GtkContainer *container,
GtkWidget *widget,
GtkStackCombo *self)
{
g_signal_handlers_disconnect_by_func (widget, G_CALLBACK (on_child_visible_changed), self);
rebuild_combo (self);
}
static void
disconnect_stack_signals (GtkStackCombo *self)
{
g_binding_unbind (self->binding);
self->binding = NULL;
g_signal_handlers_disconnect_by_func (self->stack, on_stack_child_added, self);
g_signal_handlers_disconnect_by_func (self->stack, on_stack_child_removed, self);
g_signal_handlers_disconnect_by_func (self->stack, disconnect_stack_signals, self);
}
static void
connect_stack_signals (GtkStackCombo *self)
{
g_signal_connect_after (self->stack, "add", G_CALLBACK (on_stack_child_added), self);
g_signal_connect_after (self->stack, "remove", G_CALLBACK (on_stack_child_removed), self);
g_signal_connect_swapped (self->stack, "destroy", G_CALLBACK (disconnect_stack_signals), self);
self->binding = g_object_bind_property (self->stack, "visible-child-name", self->combo, "active-id", G_BINDING_BIDIRECTIONAL | G_BINDING_SYNC_CREATE);
}
static void
gtk_stack_combo_set_stack (GtkStackCombo *self,
GtkStack *stack)
{
if (stack)
g_object_ref (stack);
if (self->stack)
{
disconnect_stack_signals (self);
clear_combo (self);
g_clear_object (&self->stack);
}
if (stack)
{
self->stack = stack;
populate_combo (self);
connect_stack_signals (self);
}
}
static void
gtk_stack_combo_get_property (GObject *object,
guint prop_id,
GValue *value,
GParamSpec *pspec)
{
GtkStackCombo *self = GTK_STACK_COMBO (object);
switch (prop_id)
{
case PROP_STACK:
g_value_set_object (value, self->stack);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gtk_stack_combo_set_property (GObject *object,
guint prop_id,
const GValue *value,
GParamSpec *pspec)
{
GtkStackCombo *self = GTK_STACK_COMBO (object);
switch (prop_id)
{
case PROP_STACK:
if (self->stack != g_value_get_object (value))
{
gtk_stack_combo_set_stack (self, g_value_get_object (value));
g_object_notify (G_OBJECT (self), "stack");
}
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gtk_stack_combo_dispose (GObject *object)
{
GtkStackCombo *self = GTK_STACK_COMBO (object);
gtk_stack_combo_set_stack (self, NULL);
if (self->combo)
{
gtk_widget_unparent (GTK_WIDGET (self->combo));
self->combo = NULL;
}
G_OBJECT_CLASS (gtk_stack_combo_parent_class)->dispose (object);
}
static void
gtk_stack_combo_measure (GtkWidget *widget,
GtkOrientation orientation,
int for_size,
int *minimum,
int *natural,
int *minimum_baseline,
int *natural_baseline)
{
GtkStackCombo *self = GTK_STACK_COMBO (widget);
gtk_widget_measure (GTK_WIDGET (self->combo), orientation, for_size,
minimum, natural,
minimum_baseline, natural_baseline);
}
static void
gtk_stack_combo_snapshot (GtkWidget *widget,
GtkSnapshot *snapshot)
{
GtkStackCombo *self = GTK_STACK_COMBO (widget);
gtk_widget_snapshot_child (widget, GTK_WIDGET (self->combo), snapshot);
}
static void
gtk_stack_combo_size_allocate (GtkWidget *widget,
GtkAllocation *allocation)
{
GtkStackCombo *self = GTK_STACK_COMBO (widget);
GtkAllocation clip = *allocation;
gtk_widget_size_allocate (GTK_WIDGET (self->combo), allocation);
gtk_widget_get_clip (GTK_WIDGET (self->combo), &clip);
gtk_widget_set_clip (widget, &clip);
}
static void
gtk_stack_combo_class_init (GtkStackComboClass *class)
{
GObjectClass *object_class = G_OBJECT_CLASS (class);
GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (class);
object_class->get_property = gtk_stack_combo_get_property;
object_class->set_property = gtk_stack_combo_set_property;
object_class->dispose = gtk_stack_combo_dispose;
widget_class->measure = gtk_stack_combo_measure;
widget_class->size_allocate = gtk_stack_combo_size_allocate;
widget_class->snapshot = gtk_stack_combo_snapshot;
g_object_class_install_property (object_class,
PROP_STACK,
g_param_spec_object ("stack",
P_("Stack"),
P_("Stack"),
GTK_TYPE_STACK,
GTK_PARAM_READWRITE |
G_PARAM_CONSTRUCT));
gtk_widget_class_set_css_name (widget_class, "stackcombo");
}