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