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/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
*
* gdl-dock-object.c - Abstract base class for all dock related objects
*
* This file is part of the GNOME Devtools Libraries.
*
* Copyright (C) 2002 Gustavo Girldez <gustavo.giraldez@gmx.net>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include "gdl-i18n.h"
#include <stdlib.h>
#include <string.h>
#include "gdl-tools.h"
#include "gdl-dock-object.h"
#include "gdl-dock-master.h"
#include "libgdltypebuiltins.h"
#include "libgdlmarshal.h"
/* for later use by the registry */
#include "gdl-dock.h"
#include "gdl-dock-item.h"
#include "gdl-dock-paned.h"
#include "gdl-dock-notebook.h"
#include "gdl-dock-placeholder.h"
/* ----- Private prototypes ----- */
static void gdl_dock_object_class_init (GdlDockObjectClass *klass);
static void gdl_dock_object_instance_init (GdlDockObject *object);
static void gdl_dock_object_set_property (GObject *g_object,
guint prop_id,
const GValue *value,
GParamSpec *pspec);
static void gdl_dock_object_get_property (GObject *g_object,
guint prop_id,
GValue *value,
GParamSpec *pspec);
static void gdl_dock_object_finalize (GObject *g_object);
static void gdl_dock_object_destroy (GtkObject *gtk_object);
static void gdl_dock_object_show (GtkWidget *widget);
static void gdl_dock_object_hide (GtkWidget *widget);
static void gdl_dock_object_real_detach (GdlDockObject *object,
gboolean recursive);
static void gdl_dock_object_real_reduce (GdlDockObject *object);
static void gdl_dock_object_dock_unimplemented (GdlDockObject *object,
GdlDockObject *requestor,
GdlDockPlacement position,
GValue *other_data);
static void gdl_dock_object_real_present (GdlDockObject *object,
GdlDockObject *child);
/* ----- Private data types and variables ----- */
enum {
PROP_0,
PROP_NAME,
PROP_LONG_NAME,
PROP_STOCK_ID,
PROP_MASTER,
PROP_EXPORT_PROPERTIES
};
enum {
DETACH,
DOCK,
LAST_SIGNAL
};
static guint gdl_dock_object_signals [LAST_SIGNAL] = { 0 };
/* ----- Private interface ----- */
GDL_CLASS_BOILERPLATE (GdlDockObject, gdl_dock_object, GtkContainer, GTK_TYPE_CONTAINER)
static void
gdl_dock_object_class_init (GdlDockObjectClass *klass)
{
GObjectClass *g_object_class;
GtkObjectClass *object_class;
GtkWidgetClass *widget_class;
GtkContainerClass *container_class;
g_object_class = G_OBJECT_CLASS (klass);
object_class = GTK_OBJECT_CLASS (klass);
widget_class = GTK_WIDGET_CLASS (klass);
container_class = GTK_CONTAINER_CLASS (klass);
g_object_class->set_property = gdl_dock_object_set_property;
g_object_class->get_property = gdl_dock_object_get_property;
g_object_class->finalize = gdl_dock_object_finalize;
g_object_class_install_property (
g_object_class, PROP_NAME,
g_param_spec_string (GDL_DOCK_NAME_PROPERTY, _("Name"),
_("Unique name for identifying the dock object"),
NULL,
G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY |
GDL_DOCK_PARAM_EXPORT));
g_object_class_install_property (
g_object_class, PROP_LONG_NAME,
g_param_spec_string ("long_name", _("Long name"),
_("Human readable name for the dock object"),
NULL,
G_PARAM_READWRITE));
g_object_class_install_property (
g_object_class, PROP_STOCK_ID,
g_param_spec_string ("stock_id", _("Stock Icon"),
_("Stock icon for the dock object"),
NULL,
G_PARAM_READWRITE));
g_object_class_install_property (
g_object_class, PROP_MASTER,
g_param_spec_object ("master", _("Dock master"),
_("Dock master this dock object is bound to"),
GDL_TYPE_DOCK_MASTER,
G_PARAM_READWRITE | G_PARAM_CONSTRUCT));
object_class->destroy = gdl_dock_object_destroy;
widget_class->show = gdl_dock_object_show;
widget_class->hide = gdl_dock_object_hide;
klass->is_compound = TRUE;
klass->detach = gdl_dock_object_real_detach;
klass->reduce = gdl_dock_object_real_reduce;
klass->dock_request = NULL;
klass->dock = gdl_dock_object_dock_unimplemented;
klass->reorder = NULL;
klass->present = gdl_dock_object_real_present;
klass->child_placement = NULL;
gdl_dock_object_signals [DETACH] =
g_signal_new ("detach",
G_TYPE_FROM_CLASS (klass),
G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (GdlDockObjectClass, detach),
NULL,
NULL,
gdl_marshal_VOID__BOOLEAN,
G_TYPE_NONE,
1,
G_TYPE_BOOLEAN);
gdl_dock_object_signals [DOCK] =
g_signal_new ("dock",
G_TYPE_FROM_CLASS (klass),
G_SIGNAL_RUN_FIRST,
G_STRUCT_OFFSET (GdlDockObjectClass, dock),
NULL,
NULL,
gdl_marshal_VOID__OBJECT_ENUM_BOXED,
G_TYPE_NONE,
3,
GDL_TYPE_DOCK_OBJECT,
GDL_TYPE_DOCK_PLACEMENT,
G_TYPE_VALUE);
}
static void
gdl_dock_object_instance_init (GdlDockObject *object)
{
object->flags = GDL_DOCK_AUTOMATIC;
object->freeze_count = 0;
}
static void
gdl_dock_object_set_property (GObject *g_object,
guint prop_id,
const GValue *value,
GParamSpec *pspec)
{
GdlDockObject *object = GDL_DOCK_OBJECT (g_object);
switch (prop_id) {
case PROP_NAME:
g_free (object->name);
object->name = g_value_dup_string (value);
break;
case PROP_LONG_NAME:
g_free (object->long_name);
object->long_name = g_value_dup_string (value);
break;
case PROP_STOCK_ID:
g_free (object->stock_id);
object->stock_id = g_value_dup_string (value);
break;
case PROP_MASTER:
if (g_value_get_object (value))
gdl_dock_object_bind (object, g_value_get_object (value));
else
gdl_dock_object_unbind (object);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gdl_dock_object_get_property (GObject *g_object,
guint prop_id,
GValue *value,
GParamSpec *pspec)
{
GdlDockObject *object = GDL_DOCK_OBJECT (g_object);
switch (prop_id) {
case PROP_NAME:
g_value_set_string (value, object->name);
break;
case PROP_LONG_NAME:
g_value_set_string (value, object->long_name);
break;
case PROP_STOCK_ID:
g_value_set_string (value, object->stock_id);
break;
case PROP_MASTER:
g_value_set_object (value, object->master);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gdl_dock_object_finalize (GObject *g_object)
{
GdlDockObject *object;
g_return_if_fail (g_object != NULL && GDL_IS_DOCK_OBJECT (g_object));
object = GDL_DOCK_OBJECT (g_object);
g_free (object->name);
object->name = NULL;
g_free (object->long_name);
object->long_name = NULL;
g_free (object->stock_id);
object->stock_id = NULL;
GDL_CALL_PARENT (G_OBJECT_CLASS, finalize, (g_object));
}
static void
gdl_dock_object_foreach_detach (GdlDockObject *object,
gpointer user_data)
{
gdl_dock_object_detach (object, TRUE);
}
static void
gdl_dock_object_destroy (GtkObject *gtk_object)
{
GdlDockObject *object;
g_return_if_fail (GDL_IS_DOCK_OBJECT (gtk_object));
object = GDL_DOCK_OBJECT (gtk_object);
if (gdl_dock_object_is_compound (object)) {
/* detach our dock object children if we have some, and even
if we are not attached, so they can get notification */
gdl_dock_object_freeze (object);
gtk_container_foreach (GTK_CONTAINER (object),
(GtkCallback) gdl_dock_object_foreach_detach,
NULL);
object->reduce_pending = FALSE;
gdl_dock_object_thaw (object);
}
if (GDL_DOCK_OBJECT_ATTACHED (object)) {
/* detach ourselves */
gdl_dock_object_detach (object, FALSE);
}
/* finally unbind us */
if (object->master)
gdl_dock_object_unbind (object);
GDL_CALL_PARENT (GTK_OBJECT_CLASS, destroy, (gtk_object));
}
static void
gdl_dock_object_foreach_automatic (GdlDockObject *object,
gpointer user_data)
{
void (* function) (GtkWidget *) = user_data;
if (GDL_DOCK_OBJECT_AUTOMATIC (object))
(* function) (GTK_WIDGET (object));
}
static void
gdl_dock_object_show (GtkWidget *widget)
{
if (gdl_dock_object_is_compound (GDL_DOCK_OBJECT (widget))) {
gtk_container_foreach (GTK_CONTAINER (widget),
(GtkCallback) gdl_dock_object_foreach_automatic,
gtk_widget_show);
}
GDL_CALL_PARENT (GTK_WIDGET_CLASS, show, (widget));
}
static void
gdl_dock_object_hide (GtkWidget *widget)
{
if (gdl_dock_object_is_compound (GDL_DOCK_OBJECT (widget))) {
gtk_container_foreach (GTK_CONTAINER (widget),
(GtkCallback) gdl_dock_object_foreach_automatic,
gtk_widget_hide);
}
GDL_CALL_PARENT (GTK_WIDGET_CLASS, hide, (widget));
}
static void
gdl_dock_object_real_detach (GdlDockObject *object,
gboolean recursive)
{
GdlDockObject *parent;
GtkWidget *widget;
g_return_if_fail (object != NULL);
/* detach children */
if (recursive && gdl_dock_object_is_compound (object)) {
gtk_container_foreach (GTK_CONTAINER (object),
(GtkCallback) gdl_dock_object_detach,
(gpointer) recursive);
}
/* detach the object itself */
GDL_DOCK_OBJECT_UNSET_FLAGS (object, GDL_DOCK_ATTACHED);
parent = gdl_dock_object_get_parent_object (object);
widget = GTK_WIDGET (object);
if (widget->parent)
gtk_container_remove (GTK_CONTAINER (widget->parent), widget);
if (parent)
gdl_dock_object_reduce (parent);
}
static void
gdl_dock_object_real_reduce (GdlDockObject *object)
{
GdlDockObject *parent;
GList *children;
g_return_if_fail (object != NULL);
if (!gdl_dock_object_is_compound (object))
return;
parent = gdl_dock_object_get_parent_object (object);
children = gtk_container_get_children (GTK_CONTAINER (object));
if (g_list_length (children) <= 1) {
GList *l;
/* detach ourselves and then re-attach our children to our
current parent. if we are not currently attached, the
children are detached */
if (parent)
gdl_dock_object_freeze (parent);
gdl_dock_object_freeze (object);
gdl_dock_object_detach (object, FALSE);
for (l = children; l; l = l->next) {
GdlDockObject *child = GDL_DOCK_OBJECT (l->data);
g_object_ref (child);
GDL_DOCK_OBJECT_SET_FLAGS (child, GDL_DOCK_IN_REFLOW);
gdl_dock_object_detach (child, FALSE);
if (parent)
gtk_container_add (GTK_CONTAINER (parent), GTK_WIDGET (child));
GDL_DOCK_OBJECT_UNSET_FLAGS (child, GDL_DOCK_IN_REFLOW);
g_object_unref (child);
}
/* sink the widget, so any automatic floating widget is destroyed */
gtk_object_sink (GTK_OBJECT (object));
/* don't reenter */
object->reduce_pending = FALSE;
gdl_dock_object_thaw (object);
if (parent)
gdl_dock_object_thaw (parent);
}
g_list_free (children);
}
static void
gdl_dock_object_dock_unimplemented (GdlDockObject *object,
GdlDockObject *requestor,
GdlDockPlacement position,
GValue *other_data)
{
g_warning (_("Call to gdl_dock_object_dock in a dock object %p "
"(object type is %s) which hasn't implemented this method"),
object, G_OBJECT_TYPE_NAME (object));
}
static void
gdl_dock_object_real_present (GdlDockObject *object,
GdlDockObject *child)
{
gtk_widget_show (GTK_WIDGET (object));
}
/* ----- Public interface ----- */
gboolean
gdl_dock_object_is_compound (GdlDockObject *object)
{
GdlDockObjectClass *klass;
g_return_val_if_fail (object != NULL, FALSE);
g_return_val_if_fail (GDL_IS_DOCK_OBJECT (object), FALSE);
klass = GDL_DOCK_OBJECT_GET_CLASS (object);
return klass->is_compound;
}
void
gdl_dock_object_detach (GdlDockObject *object,
gboolean recursive)
{
g_return_if_fail (object != NULL);
if (!GDL_DOCK_OBJECT_ATTACHED (object))
return;
/* freeze the object to avoid reducing while detaching children */
gdl_dock_object_freeze (object);
GDL_DOCK_OBJECT_SET_FLAGS (object, GDL_DOCK_IN_DETACH);
g_signal_emit (object, gdl_dock_object_signals [DETACH], 0, recursive);
GDL_DOCK_OBJECT_UNSET_FLAGS (object, GDL_DOCK_IN_DETACH);
gdl_dock_object_thaw (object);
}
GdlDockObject *
gdl_dock_object_get_parent_object (GdlDockObject *object)
{
GtkWidget *parent;
g_return_val_if_fail (object != NULL, NULL);
parent = GTK_WIDGET (object)->parent;
while (parent && !GDL_IS_DOCK_OBJECT (parent)) {
parent = parent->parent;
}
return parent ? GDL_DOCK_OBJECT (parent) : NULL;
}
void
gdl_dock_object_freeze (GdlDockObject *object)
{
g_return_if_fail (object != NULL);
if (object->freeze_count == 0) {
g_object_ref (object); /* dock objects shouldn't be
destroyed if they are frozen */
}
object->freeze_count++;
}
void
gdl_dock_object_thaw (GdlDockObject *object)
{
g_return_if_fail (object != NULL);
g_return_if_fail (object->freeze_count > 0);
object->freeze_count--;
if (object->freeze_count == 0) {
if (object->reduce_pending) {
object->reduce_pending = FALSE;
gdl_dock_object_reduce (object);
}
g_object_unref (object);
}
}
void
gdl_dock_object_reduce (GdlDockObject *object)
{
g_return_if_fail (object != NULL);
if (GDL_DOCK_OBJECT_FROZEN (object)) {
object->reduce_pending = TRUE;
return;
}
GDL_CALL_VIRTUAL (object, GDL_DOCK_OBJECT_GET_CLASS, reduce, (object));
}
gboolean
gdl_dock_object_dock_request (GdlDockObject *object,
gint x,
gint y,
GdlDockRequest *request)
{
g_return_val_if_fail (object != NULL && request != NULL, FALSE);
return GDL_CALL_VIRTUAL_WITH_DEFAULT (object,
GDL_DOCK_OBJECT_GET_CLASS,
dock_request,
(object, x, y, request),
FALSE);
}
void
gdl_dock_object_dock (GdlDockObject *object,
GdlDockObject *requestor,
GdlDockPlacement position,
GValue *other_data)
{
GdlDockObject *parent;
g_return_if_fail (object != NULL && requestor != NULL);
if (object == requestor)
return;
if (!object->master)
g_warning (_("Dock operation requested in a non-bound object %p. "
"The application might crash"), object);
if (!gdl_dock_object_is_bound (requestor))
gdl_dock_object_bind (requestor, object->master);
if (requestor->master != object->master) {
g_warning (_("Cannot dock %p to %p because they belong to different masters"),
requestor, object);
return;
}
/* first, see if we can optimize things by reordering */
if (position != GDL_DOCK_NONE) {
parent = gdl_dock_object_get_parent_object (object);
if (gdl_dock_object_reorder (object, requestor, position, other_data) ||
(parent && gdl_dock_object_reorder (parent, requestor, position, other_data)))
return;
}
/* freeze the object, since under some conditions it might be destroyed when
detaching the requestor */
gdl_dock_object_freeze (object);
/* detach the requestor before docking */
g_object_ref (requestor);
if (GDL_DOCK_OBJECT_ATTACHED (requestor))
gdl_dock_object_detach (requestor, FALSE);
if (position != GDL_DOCK_NONE)
g_signal_emit (object, gdl_dock_object_signals [DOCK], 0,
requestor, position, other_data);
g_object_unref (requestor);
gdl_dock_object_thaw (object);
}
void
gdl_dock_object_bind (GdlDockObject *object,
GObject *master)
{
g_return_if_fail (object != NULL && master != NULL);
g_return_if_fail (GDL_IS_DOCK_MASTER (master));
if (object->master == master)
/* nothing to do here */
return;
if (object->master) {
g_warning (_("Attempt to bind to %p an already bound dock object %p "
"(current master: %p)"), master, object, object->master);
return;
}
gdl_dock_master_add (GDL_DOCK_MASTER (master), object);
object->master = master;
g_object_add_weak_pointer (master, (gpointer *) &object->master);
g_object_notify (G_OBJECT (object), "master");
}
void
gdl_dock_object_unbind (GdlDockObject *object)
{
g_return_if_fail (object != NULL);
g_object_ref (object);
/* detach the object first */
if (GDL_DOCK_OBJECT_ATTACHED (object))
gdl_dock_object_detach (object, TRUE);
if (object->master) {
GObject *master = object->master;
g_object_remove_weak_pointer (master, (gpointer *) &object->master);
object->master = NULL;
gdl_dock_master_remove (GDL_DOCK_MASTER (master), object);
g_object_notify (G_OBJECT (object), "master");
}
g_object_unref (object);
}
gboolean
gdl_dock_object_is_bound (GdlDockObject *object)
{
g_return_val_if_fail (object != NULL, FALSE);
return (object->master != NULL);
}
gboolean
gdl_dock_object_reorder (GdlDockObject *object,
GdlDockObject *child,
GdlDockPlacement new_position,
GValue *other_data)
{
g_return_val_if_fail (object != NULL && child != NULL, FALSE);
return GDL_CALL_VIRTUAL_WITH_DEFAULT (object,
GDL_DOCK_OBJECT_GET_CLASS,
reorder,
(object, child, new_position, other_data),
FALSE);
}
void
gdl_dock_object_present (GdlDockObject *object,
GdlDockObject *child)
{
GdlDockObject *parent;
g_return_if_fail (object != NULL && GDL_IS_DOCK_OBJECT (object));
parent = gdl_dock_object_get_parent_object (object);
if (parent)
/* chain the call to our parent */
gdl_dock_object_present (parent, object);
GDL_CALL_VIRTUAL (object, GDL_DOCK_OBJECT_GET_CLASS, present, (object, child));
}
/**
* gdl_dock_object_child_placement:
* @object: the dock object we are asking for child placement
* @child: the child of the @object we want the placement for
* @placement: where to return the placement information
*
* This function returns information about placement of a child dock
* object inside another dock object. The function returns %TRUE if
* @child is effectively a child of @object. @placement should
* normally be initially setup to %GDL_DOCK_NONE. If it's set to some
* other value, this function will not touch the stored value if the
* specified placement is "compatible" with the actual placement of
* the child.
*
* @placement can be %NULL, in which case the function simply tells if
* @child is attached to @object.
*
* Returns: %TRUE if @child is a child of @object.
*/
gboolean
gdl_dock_object_child_placement (GdlDockObject *object,
GdlDockObject *child,
GdlDockPlacement *placement)
{
g_return_val_if_fail (object != NULL && child != NULL, FALSE);
/* simple case */
if (!gdl_dock_object_is_compound (object))
return FALSE;
return GDL_CALL_VIRTUAL_WITH_DEFAULT (object, GDL_DOCK_OBJECT_GET_CLASS,
child_placement,
(object, child, placement),
FALSE);
}
/* ----- dock param type functions start here ------ */
static void
gdl_dock_param_export_int (const GValue *src,
GValue *dst)
{
dst->data [0].v_pointer = g_strdup_printf ("%d", src->data [0].v_int);
}
static void
gdl_dock_param_export_uint (const GValue *src,
GValue *dst)
{
dst->data [0].v_pointer = g_strdup_printf ("%u", src->data [0].v_uint);
}
static void
gdl_dock_param_export_string (const GValue *src,
GValue *dst)
{
dst->data [0].v_pointer = g_strdup (src->data [0].v_pointer);
}
static void
gdl_dock_param_export_bool (const GValue *src,
GValue *dst)
{
dst->data [0].v_pointer = g_strdup_printf ("%s", src->data [0].v_int ? "yes" : "no");
}
static void
gdl_dock_param_export_placement (const GValue *src,
GValue *dst)
{
switch (src->data [0].v_int) {
case GDL_DOCK_NONE:
dst->data [0].v_pointer = g_strdup ("");
break;
case GDL_DOCK_TOP:
dst->data [0].v_pointer = g_strdup ("top");
break;
case GDL_DOCK_BOTTOM:
dst->data [0].v_pointer = g_strdup ("bottom");
break;
case GDL_DOCK_LEFT:
dst->data [0].v_pointer = g_strdup ("left");
break;
case GDL_DOCK_RIGHT:
dst->data [0].v_pointer = g_strdup ("right");
break;
case GDL_DOCK_CENTER:
dst->data [0].v_pointer = g_strdup ("center");
break;
case GDL_DOCK_FLOATING:
dst->data [0].v_pointer = g_strdup ("floating");
break;
}
}
static void
gdl_dock_param_import_int (const GValue *src,
GValue *dst)
{
dst->data [0].v_int = atoi (src->data [0].v_pointer);
}
static void
gdl_dock_param_import_uint (const GValue *src,
GValue *dst)
{
dst->data [0].v_uint = (guint) atoi (src->data [0].v_pointer);
}
static void
gdl_dock_param_import_string (const GValue *src,
GValue *dst)
{
dst->data [0].v_pointer = g_strdup (src->data [0].v_pointer);
}
static void
gdl_dock_param_import_bool (const GValue *src,
GValue *dst)
{
dst->data [0].v_int = !strcmp (src->data [0].v_pointer, "yes");
}
static void
gdl_dock_param_import_placement (const GValue *src,
GValue *dst)
{
if (!strcmp (src->data [0].v_pointer, "top"))
dst->data [0].v_int = GDL_DOCK_TOP;
else if (!strcmp (src->data [0].v_pointer, "bottom"))
dst->data [0].v_int = GDL_DOCK_BOTTOM;
else if (!strcmp (src->data [0].v_pointer, "center"))
dst->data [0].v_int = GDL_DOCK_CENTER;
else if (!strcmp (src->data [0].v_pointer, "left"))
dst->data [0].v_int = GDL_DOCK_LEFT;
else if (!strcmp (src->data [0].v_pointer, "right"))
dst->data [0].v_int = GDL_DOCK_RIGHT;
else if (!strcmp (src->data [0].v_pointer, "floating"))
dst->data [0].v_int = GDL_DOCK_FLOATING;
else
dst->data [0].v_int = GDL_DOCK_NONE;
}
GType
gdl_dock_param_get_type (void)
{
static GType our_type = 0;
if (our_type == 0) {
GTypeInfo tinfo = { 0, };
our_type = g_type_register_static (G_TYPE_STRING, "GdlDockParam", &tinfo, 0);
/* register known transform functions */
/* exporters */
g_value_register_transform_func (G_TYPE_INT, our_type, gdl_dock_param_export_int);
g_value_register_transform_func (G_TYPE_UINT, our_type, gdl_dock_param_export_uint);
g_value_register_transform_func (G_TYPE_STRING, our_type, gdl_dock_param_export_string);
g_value_register_transform_func (G_TYPE_BOOLEAN, our_type, gdl_dock_param_export_bool);
g_value_register_transform_func (GDL_TYPE_DOCK_PLACEMENT, our_type, gdl_dock_param_export_placement);
/* importers */
g_value_register_transform_func (our_type, G_TYPE_INT, gdl_dock_param_import_int);
g_value_register_transform_func (our_type, G_TYPE_UINT, gdl_dock_param_import_uint);
g_value_register_transform_func (our_type, G_TYPE_STRING, gdl_dock_param_import_string);
g_value_register_transform_func (our_type, G_TYPE_BOOLEAN, gdl_dock_param_import_bool);
g_value_register_transform_func (our_type, GDL_TYPE_DOCK_PLACEMENT, gdl_dock_param_import_placement);
}
return our_type;
}
/* -------------- nick <-> type conversion functions --------------- */
static GRelation *dock_register = NULL;
enum {
INDEX_NICK = 0,
INDEX_TYPE
};
static void
gdl_dock_object_register_init (void)
{
if (dock_register)
return;
/* FIXME: i don't know if GRelation is efficient */
dock_register = g_relation_new (2);
g_relation_index (dock_register, INDEX_NICK, g_str_hash, g_str_equal);
g_relation_index (dock_register, INDEX_TYPE, g_direct_hash, g_direct_equal);
/* add known types */
g_relation_insert (dock_register, "dock", (gpointer) GDL_TYPE_DOCK);
g_relation_insert (dock_register, "item", (gpointer) GDL_TYPE_DOCK_ITEM);
g_relation_insert (dock_register, "paned", (gpointer) GDL_TYPE_DOCK_PANED);
g_relation_insert (dock_register, "notebook", (gpointer) GDL_TYPE_DOCK_NOTEBOOK);
g_relation_insert (dock_register, "placeholder", (gpointer) GDL_TYPE_DOCK_PLACEHOLDER);
}
G_CONST_RETURN gchar *
gdl_dock_object_nick_from_type (GType type)
{
GTuples *tuples;
gchar *nick = NULL;
if (!dock_register)
gdl_dock_object_register_init ();
if (g_relation_count (dock_register, (gpointer) type, INDEX_TYPE) > 0) {
tuples = g_relation_select (dock_register, (gpointer) type, INDEX_TYPE);
nick = (gchar *) g_tuples_index (tuples, 0, INDEX_NICK);
g_tuples_destroy (tuples);
}
return nick ? nick : g_type_name (type);
}
GType
gdl_dock_object_type_from_nick (const gchar *nick)
{
GTuples *tuples;
GType type = G_TYPE_NONE;
if (!dock_register)
gdl_dock_object_register_init ();
if (g_relation_count (dock_register, (gpointer) nick, INDEX_NICK) > 0) {
tuples = g_relation_select (dock_register, (gpointer) nick, INDEX_NICK);
type = (GType) g_tuples_index (tuples, 0, INDEX_TYPE);
g_tuples_destroy (tuples);
}
else {
/* try searching in the glib type system */
type = g_type_from_name (nick);
}
return type;
}
GType
gdl_dock_object_set_type_for_nick (const gchar *nick,
GType type)
{
GType old_type = G_TYPE_NONE;
if (!dock_register)
gdl_dock_object_register_init ();
g_return_val_if_fail (g_type_is_a (type, GDL_TYPE_DOCK_OBJECT), G_TYPE_NONE);
if (g_relation_count (dock_register, (gpointer) nick, INDEX_NICK) > 0) {
old_type = gdl_dock_object_type_from_nick (nick);
g_relation_delete (dock_register, (gpointer) nick, INDEX_NICK);
}
g_relation_insert (dock_register, nick, type);
return old_type;
}
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