/*
 * Copyright (c) 2003 by the gtk2-perl team (see the file AUTHORS)
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Library General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Library General Public License for more details.
 *
 * You should have received a copy of the GNU Library General Public
 * License along with this library; if not, write to the 
 * Free Software Foundation, Inc., 59 Temple Place - Suite 330, 
 * Boston, MA  02111-1307  USA.
 *
 * $Header: /cvsroot/gtk2-perl/gtk2-perl-xs/Gtk2/xs/GtkContainer.xs,v 1.17 2004/07/17 12:28:22 muppetman Exp $
 */

#include "gtk2perl.h"

static void
init_child_property_value (GObject * object, 
		           const char * name, 
		           GValue * value)
{
	GParamSpec * pspec;
	pspec = gtk_container_class_find_child_property (G_OBJECT_GET_CLASS (object), 
	                                                 name);
	if (!pspec)
		croak ("property %s not found in object class %s",
		       name, G_OBJECT_TYPE_NAME (object));
	g_value_init (value, G_PARAM_SPEC_VALUE_TYPE (pspec));
}

static void
gtk2perl_foreach_callback (GtkWidget * widget,
                           GPerlCallback * callback)
{
	gperl_callback_invoke (callback, NULL, widget);
}


MODULE = Gtk2::Container	PACKAGE = Gtk2::Container	PREFIX = gtk_container_

void
gtk_container_set_border_width (container, border_width)
	GtkContainer *container
	guint border_width

guint
gtk_container_get_border_width (container)
	GtkContainer *container

void
gtk_container_add (container, widget)
	GtkContainer *container
	GtkWidget *widget

void
gtk_container_remove (container, widget)
	GtkContainer *container
	GtkWidget *widget

void
gtk_container_set_resize_mode (container, resize_mode)
	GtkContainer *container
	GtkResizeMode resize_mode

GtkResizeMode
gtk_container_get_resize_mode (container)
	GtkContainer *container

void
gtk_container_check_resize (container)
	GtkContainer *container

 ## void gtk_container_foreach (GtkContainer *container, GtkCallback callback, gpointer callback_data)
void
gtk_container_foreach (container, callback, callback_data=NULL)
	GtkContainer *container
	SV * callback
	SV * callback_data
    PREINIT:
	GPerlCallback * real_callback;
	GType param_types [1];
    CODE:
    	param_types[0] = GTK_TYPE_WIDGET;
	real_callback = gperl_callback_new (callback, callback_data,
	                                    1, param_types, G_TYPE_NONE);
	gtk_container_foreach (container, 
	                       (GtkCallback)gtk2perl_foreach_callback,
	                       real_callback);
	gperl_callback_destroy (real_callback);

 ## deprecated
 ## gtk_container_foreach_full

 ## GList* gtk_container_get_children (GtkContainer *container)
=for apidoc
Returns a list of Gtk2::Widget's, the children of the container.
=cut
void
gtk_container_get_children (container)
	GtkContainer *container
    PREINIT:
	GList * children, * i;
    PPCODE:
	children = gtk_container_get_children (container);
	for (i = children ; i != NULL ; i = i->next)
		XPUSHs (sv_2mortal (newSVGtkWidget (GTK_WIDGET (i->data))));
	g_list_free (children);

 ## void gtk_container_propagate_expose (GtkContainer *container, GtkWidget *child, GdkEventExpose *event)
void
gtk_container_propagate_expose (container, child, event)
	GtkContainer *container
	GtkWidget *child
	GdkEvent *event
    C_ARGS:
	container, child, (GdkEventExpose *) event

 ## void gtk_container_set_focus_chain (GtkContainer *container, GList *focusable_widgets)
=for apidoc
=for arg ... of Gtk2::Widget's, the focus chain
Sets a focus chain, overriding the one computed automatically by GTK+.

In principle each widget in the chain should be a descendant of the container,
but this is not enforced by this method, since it's allowed to set the focus
chain before you pack the widgets, or have a widget in the chain that isn't
always packed. The necessary checks are done when the focus chain is actually
traversed.
=cut
void
gtk_container_set_focus_chain (container, ...)
	GtkContainer *container
    PREINIT:
	GList *focusable_widgets = NULL;
	int i;
    CODE:
	for (i = items - 1 ; i > 0 ; i--)
		focusable_widgets = g_list_prepend (focusable_widgets,
		                                    SvGtkWidget (ST (i)));
	gtk_container_set_focus_chain (container, focusable_widgets);
	g_list_free (focusable_widgets);
 
 ## gboolean gtk_container_get_focus_chain (GtkContainer *container, GList **focusable_widgets)
=for apidoc
Returns a list of Gtk2::Widgets, the focus chain.
=cut
void
gtk_container_get_focus_chain (container)
	GtkContainer *container
    PREINIT:
	GList * i, * focusable_widgets = NULL;
    PPCODE:
	if (!gtk_container_get_focus_chain (container, &focusable_widgets))
		XSRETURN_EMPTY;
	for (i = focusable_widgets; i != NULL ; i = i->next)
		XPUSHs (sv_2mortal (newSVGtkWidget (i->data)));
	g_list_free (focusable_widgets);

void
gtk_container_unset_focus_chain (container)
	GtkContainer *container

void
gtk_container_set_focus_child (container, child)
	GtkContainer *container
	GtkWidget *child

GtkAdjustment_ornull *
gtk_container_get_focus_hadjustment (container)
	GtkContainer * container

GtkAdjustment_ornull *
gtk_container_get_focus_vadjustment (container)
	GtkContainer * container

void
gtk_container_set_focus_vadjustment (container, adjustment)
	GtkContainer *container
	GtkAdjustment_ornull *adjustment

void
gtk_container_set_focus_hadjustment (container, adjustment)
	GtkContainer *container
	GtkAdjustment_ornull *adjustment

void
gtk_container_resize_children (container)
	GtkContainer *container

 ## GtkType gtk_container_child_type (GtkContainer *container)
const char *
gtk_container_child_type (container)
	GtkContainer *container
    PREINIT:
	GType gtype;
    CODE:
	gtype = gtk_container_child_type (container);
	if (!gtype)
		/* this means that the container is full. */
		XSRETURN_UNDEF;
	/* GtkWidgets are GObjects, so we should only be getting object
	 * types back from this function.  however, we might get a GType
	 * that isn't registered with the bindings, so we have to look 
	 * for one that we know about.  since Glib::Object is always
	 * registered, this loop cannot be infinite. */
	RETVAL = NULL;
	while (gtype &&
	       (NULL == (RETVAL = gperl_object_package_from_type (gtype))))
		gtype = g_type_parent (gtype);
    OUTPUT:
	RETVAL

 ## void gtk_container_class_install_child_property (GtkContainerClass *cclass, guint property_id, GParamSpec *pspec)
 ## GParamSpec* gtk_container_class_find_child_property (GObjectClass *cclass, const gchar *property_name)
 ## GParamSpec** gtk_container_class_list_child_properties (GObjectClass *cclass, guint *n_properties)

=for apidoc

=for arg ... list of property name/value pairs

=cut
 ## void gtk_container_add_with_properties (GtkContainer *container, GtkWidget *widget, const gchar *first_prop_name, ...)
void
gtk_container_add_with_properties (container, widget, ...)
	GtkContainer *container
	GtkWidget *widget
    PREINIT:
	GValue value = {0,};
	int i;
    CODE:
	g_object_ref (container);
	g_object_ref (widget);
	gtk_widget_freeze_child_notify (widget);

	gtk_container_add (container, widget);

	if (widget->parent) {
		if (0 != ((items - 2) % 2))
			croak ("add_with_properties expects name => value pairs "
			       "(odd number of arguments detected)");
		
		for (i = 2; i < items; i += 2) {
			char *name = SvPV_nolen (ST (i));
			SV *newval = ST (i + 1);
		
			init_child_property_value (G_OBJECT (container), name, &value);
			gperl_value_from_sv (&value, newval);
		
			gtk_container_child_set_property (container, widget, name, &value);
		
			g_value_unset (&value);
		}
	}

	gtk_widget_thaw_child_notify (widget);
	g_object_unref (widget);
	g_object_unref (container);

 ## void gtk_container_child_get_valist (GtkContainer *container, GtkWidget *child, const gchar *first_property_name, va_list var_args)
 ## void gtk_container_child_get_property (GtkContainer *container, GtkWidget *child, const gchar *property_name, GValue *value)
 ## void gtk_container_child_get (GtkContainer *container, GtkWidget *child, const gchar *first_prop_name, ...)
=for apidoc Gtk2::Container::child_get_property
Alias for child_get
=cut
=for apidoc
=for arg ... list of property names
Returns a list of properties of the child.
=cut
void
gtk_container_child_get (container, child, ...)
	GtkContainer *container
	GtkWidget *child
    ALIAS:
	Gtk2::Container::child_get_property = 1
    PREINIT:
	GValue value = {0,};
	int i;
    PPCODE:
	PERL_UNUSED_VAR (ix);
	EXTEND (SP, items-1);

	for (i = 2; i < items; i++) {
		char *name = SvPV_nolen (ST (i));
		init_child_property_value (G_OBJECT (container), name, &value);

		gtk_container_child_get_property (container, child, name, &value);

		PUSHs (sv_2mortal (gperl_sv_from_value (&value)));
		g_value_unset (&value);
	}

 ## void gtk_container_child_set_valist (GtkContainer *container, GtkWidget *child, const gchar *first_property_name, va_list var_args);
 ## void gtk_container_child_set_property (GtkContainer *container, GtkWidget *child, const gchar *property_name, const GValue *value)
 ## void gtk_container_child_set (GtkContainer *container, GtkWidget *child, const gchar *first_prop_name, ...)
=for apidoc Gtk2::Container::child_set_property
Alias for child_set
=cut
=for apidoc
=for arg ... list of property name/value pairs
Sets a list of properties on the child.
=cut
void
gtk_container_child_set (container, child, ...)
	GtkContainer *container
	GtkWidget *child
    ALIAS:
	Gtk2::Container::child_set_property = 1
    PREINIT:
	GValue value = {0,};
	int i;
    CODE:
	PERL_UNUSED_VAR (ix);

	if (0 != ((items - 2) % 2))
		croak ("set method expects name => value pairs "
		       "(odd number of arguments detected)");

	for (i = 2; i < items; i += 2) {
		char *name = SvPV_nolen (ST (i));
		SV *newval = ST (i + 1);

		init_child_property_value (G_OBJECT (container), name, &value);
		gperl_value_from_sv (&value, newval);

		gtk_container_child_set_property (container, child, name, &value);

		g_value_unset (&value);
	}

# works on all children, including the internal ones.
 ##void gtk_container_forall (GtkContainer *container,
 ##	GtkCallback callback,
 ##	gpointer callback_data);

##GtkType gtk_container_get_type (void) G_GNUC_CONST

##void gtk_container_set_reallocate_redraws (GtkContainer *container, gboolean needs_redraws)
void
gtk_container_set_reallocate_redraws (container, needs_redraws)
	GtkContainer * container
	gboolean       needs_redraws

# __PRIVATE__
##void _gtk_container_queue_resize (GtkContainer *container)