gimp/app/widgets/gimpcontainerview.c

656 lines
19 KiB
C

/* The GIMP -- an image manipulation program
* Copyright (C) 1995 Spencer Kimball and Peter Mattis
*
* gimpcontainerview.c
* Copyright (C) 2001 Michael Natterer
*
* 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.
*/
#include "config.h"
#include <gtk/gtk.h>
#include "widgets-types.h"
#include "core/gimpcontainer.h"
#include "core/gimpcontext.h"
#include "core/gimpmarshal.h"
#include "core/gimpviewable.h"
#include "gimpcontainerview.h"
#include "gimpcontainerview-utils.h"
#include "gimpdnd.h"
enum
{
SET_CONTAINER,
INSERT_ITEM,
REMOVE_ITEM,
REORDER_ITEM,
SELECT_ITEM,
ACTIVATE_ITEM,
CONTEXT_ITEM,
CLEAR_ITEMS,
SET_PREVIEW_SIZE,
LAST_SIGNAL
};
static void gimp_container_view_class_init (GimpContainerViewClass *klass);
static void gimp_container_view_init (GimpContainerView *panel);
static void gimp_container_view_destroy (GtkObject *object);
static void gimp_container_view_real_set_container (GimpContainerView *view,
GimpContainer *container);
static void gimp_container_view_clear_items (GimpContainerView *view);
static void gimp_container_view_real_clear_items (GimpContainerView *view);
static void gimp_container_view_add_foreach (GimpViewable *viewable,
GimpContainerView *view);
static void gimp_container_view_add (GimpContainerView *view,
GimpViewable *viewable,
GimpContainer *container);
static void gimp_container_view_remove (GimpContainerView *view,
GimpViewable *viewable,
GimpContainer *container);
static void gimp_container_view_reorder (GimpContainerView *view,
GimpViewable *viewable,
gint new_index,
GimpContainer *container);
static void gimp_container_view_context_changed (GimpContext *context,
GimpViewable *viewable,
GimpContainerView *view);
static void gimp_container_view_drop_viewable_callback (GtkWidget *widget,
GimpViewable *viewable,
gpointer data);
static guint view_signals[LAST_SIGNAL] = { 0 };
static GtkVBoxClass *parent_class = NULL;
GtkType
gimp_container_view_get_type (void)
{
static guint view_type = 0;
if (! view_type)
{
GtkTypeInfo view_info =
{
"GimpContainerView",
sizeof (GimpContainerView),
sizeof (GimpContainerViewClass),
(GtkClassInitFunc) gimp_container_view_class_init,
(GtkObjectInitFunc) gimp_container_view_init,
/* reserved_1 */ NULL,
/* reserved_2 */ NULL,
(GtkClassInitFunc) NULL
};
view_type = gtk_type_unique (GTK_TYPE_VBOX, &view_info);
}
return view_type;
}
static void
gimp_container_view_class_init (GimpContainerViewClass *klass)
{
GtkObjectClass *object_class;
object_class = (GtkObjectClass *) klass;
parent_class = gtk_type_class (GTK_TYPE_VBOX);
view_signals[SET_CONTAINER] =
gtk_signal_new ("set_container",
GTK_RUN_LAST,
object_class->type,
GTK_SIGNAL_OFFSET (GimpContainerViewClass,
set_container),
gtk_marshal_NONE__OBJECT,
GTK_TYPE_NONE, 1,
GIMP_TYPE_OBJECT);
view_signals[INSERT_ITEM] =
gtk_signal_new ("insert_item",
GTK_RUN_LAST,
object_class->type,
GTK_SIGNAL_OFFSET (GimpContainerViewClass,
insert_item),
gimp_marshal_POINTER__POINTER_INT,
GTK_TYPE_POINTER, 2,
GIMP_TYPE_OBJECT,
GTK_TYPE_INT);
view_signals[REMOVE_ITEM] =
gtk_signal_new ("remove_item",
GTK_RUN_FIRST,
object_class->type,
GTK_SIGNAL_OFFSET (GimpContainerViewClass,
remove_item),
gtk_marshal_NONE__POINTER_POINTER,
GTK_TYPE_NONE, 2,
GIMP_TYPE_OBJECT,
GTK_TYPE_POINTER);
view_signals[REORDER_ITEM] =
gtk_signal_new ("reorder_item",
GTK_RUN_FIRST,
object_class->type,
GTK_SIGNAL_OFFSET (GimpContainerViewClass,
reorder_item),
gtk_marshal_NONE__POINTER_INT_POINTER,
GTK_TYPE_NONE, 3,
GIMP_TYPE_OBJECT,
GTK_TYPE_INT,
GTK_TYPE_POINTER);
view_signals[SELECT_ITEM] =
gtk_signal_new ("select_item",
GTK_RUN_FIRST,
object_class->type,
GTK_SIGNAL_OFFSET (GimpContainerViewClass,
select_item),
gtk_marshal_NONE__POINTER_POINTER,
GTK_TYPE_NONE, 2,
GIMP_TYPE_OBJECT,
GTK_TYPE_POINTER);
view_signals[ACTIVATE_ITEM] =
gtk_signal_new ("activate_item",
GTK_RUN_FIRST,
object_class->type,
GTK_SIGNAL_OFFSET (GimpContainerViewClass,
activate_item),
gtk_marshal_NONE__POINTER_POINTER,
GTK_TYPE_NONE, 2,
GIMP_TYPE_OBJECT,
GTK_TYPE_POINTER);
view_signals[CONTEXT_ITEM] =
gtk_signal_new ("context_item",
GTK_RUN_FIRST,
object_class->type,
GTK_SIGNAL_OFFSET (GimpContainerViewClass,
context_item),
gtk_marshal_NONE__POINTER_POINTER,
GTK_TYPE_NONE, 2,
GIMP_TYPE_OBJECT,
GTK_TYPE_POINTER);
view_signals[CLEAR_ITEMS] =
gtk_signal_new ("clear_items",
GTK_RUN_FIRST,
object_class->type,
GTK_SIGNAL_OFFSET (GimpContainerViewClass,
clear_items),
gtk_signal_default_marshaller,
GTK_TYPE_NONE, 0);
view_signals[SET_PREVIEW_SIZE] =
gtk_signal_new ("set_preview_size",
GTK_RUN_FIRST,
object_class->type,
GTK_SIGNAL_OFFSET (GimpContainerViewClass,
set_preview_size),
gtk_signal_default_marshaller,
GTK_TYPE_NONE, 0);
gtk_object_class_add_signals (object_class, view_signals, LAST_SIGNAL);
object_class->destroy = gimp_container_view_destroy;
klass->set_container = gimp_container_view_real_set_container;
klass->insert_item = NULL;
klass->remove_item = NULL;
klass->reorder_item = NULL;
klass->select_item = NULL;
klass->activate_item = NULL;
klass->context_item = NULL;
klass->clear_items = gimp_container_view_real_clear_items;
klass->set_preview_size = NULL;
}
static void
gimp_container_view_init (GimpContainerView *view)
{
view->container = NULL;
view->context = NULL;
view->hash_table = g_hash_table_new (g_direct_hash, g_direct_equal);
view->preview_size = 0;
}
static void
gimp_container_view_destroy (GtkObject *object)
{
GimpContainerView *view;
view = GIMP_CONTAINER_VIEW (object);
gimp_container_view_set_container (view, NULL);
gimp_container_view_set_context (view, NULL);
g_hash_table_destroy (view->hash_table);
view->hash_table = NULL;
if (GTK_OBJECT_CLASS (parent_class)->destroy)
GTK_OBJECT_CLASS (parent_class)->destroy (object);
}
void
gimp_container_view_set_container (GimpContainerView *view,
GimpContainer *container)
{
g_return_if_fail (view != NULL);
g_return_if_fail (GIMP_IS_CONTAINER_VIEW (view));
g_return_if_fail (!container || GIMP_IS_CONTAINER (container));
if (container == view->container)
return;
gtk_signal_emit (GTK_OBJECT (view), view_signals[SET_CONTAINER],
container);
}
static void
gimp_container_view_real_set_container (GimpContainerView *view,
GimpContainer *container)
{
if (view->container)
{
gimp_container_view_select_item (view, NULL);
gimp_container_view_clear_items (view);
gtk_signal_disconnect_by_func (GTK_OBJECT (view->container),
gimp_container_view_add,
view);
gtk_signal_disconnect_by_func (GTK_OBJECT (view->container),
gimp_container_view_remove,
view);
gtk_signal_disconnect_by_func (GTK_OBJECT (view->container),
gimp_container_view_reorder,
view);
g_hash_table_destroy (view->hash_table);
view->hash_table = g_hash_table_new (g_direct_hash, g_direct_equal);
if (view->context)
{
gtk_signal_disconnect_by_func (GTK_OBJECT (view->context),
gimp_container_view_context_changed,
view);
gtk_drag_dest_unset (GTK_WIDGET (view));
gimp_dnd_viewable_dest_unset (GTK_WIDGET (view),
view->container->children_type);
}
if (view->get_name_func &&
gimp_container_view_is_built_in_name_func (view->get_name_func))
{
gimp_container_view_set_name_func (view, NULL);
}
}
view->container = container;
if (view->container)
{
if (! view->get_name_func)
{
GimpItemGetNameFunc get_name_func;
get_name_func = gimp_container_view_get_built_in_name_func (view->container->children_type);
gimp_container_view_set_name_func (view, get_name_func);
}
gimp_container_foreach (view->container,
(GFunc) gimp_container_view_add_foreach,
view);
gtk_signal_connect_object (GTK_OBJECT (view->container), "add",
GTK_SIGNAL_FUNC (gimp_container_view_add),
GTK_OBJECT (view));
gtk_signal_connect_object (GTK_OBJECT (view->container), "remove",
GTK_SIGNAL_FUNC (gimp_container_view_remove),
GTK_OBJECT (view));
gtk_signal_connect_object (GTK_OBJECT (view->container), "reorder",
GTK_SIGNAL_FUNC (gimp_container_view_reorder),
GTK_OBJECT (view));
if (view->context)
{
GimpObject *object;
const gchar *signal_name;
signal_name =
gimp_context_type_to_signal_name (view->container->children_type);
gtk_signal_connect
(GTK_OBJECT (view->context), signal_name,
GTK_SIGNAL_FUNC (gimp_container_view_context_changed),
view);
object = gimp_context_get_by_type (view->context,
view->container->children_type);
gimp_container_view_select_item (view,
object ? GIMP_VIEWABLE (object): NULL);
gimp_gtk_drag_dest_set_by_type (GTK_WIDGET (view),
GTK_DEST_DEFAULT_ALL,
view->container->children_type,
GDK_ACTION_COPY);
gimp_dnd_viewable_dest_set (GTK_WIDGET (view),
view->container->children_type,
gimp_container_view_drop_viewable_callback,
NULL);
}
}
}
void
gimp_container_view_set_context (GimpContainerView *view,
GimpContext *context)
{
g_return_if_fail (view != NULL);
g_return_if_fail (GIMP_IS_CONTAINER_VIEW (view));
g_return_if_fail (! context || GIMP_IS_CONTEXT (context));
if (context == view->context)
return;
if (view->context && view->container)
{
gtk_signal_disconnect_by_func (GTK_OBJECT (view->context),
gimp_container_view_context_changed,
view);
gtk_drag_dest_unset (GTK_WIDGET (view));
gimp_dnd_viewable_dest_unset (GTK_WIDGET (view),
view->container->children_type);
}
view->context = context;
if (view->context && view->container)
{
GimpObject *object;
const gchar *signal_name;
signal_name =
gimp_context_type_to_signal_name (view->container->children_type);
gtk_signal_connect (GTK_OBJECT (view->context), signal_name,
GTK_SIGNAL_FUNC (gimp_container_view_context_changed),
view);
object = gimp_context_get_by_type (view->context,
view->container->children_type);
gimp_container_view_select_item (view,
object ? GIMP_VIEWABLE (object) : NULL);
gimp_gtk_drag_dest_set_by_type (GTK_WIDGET (view),
GTK_DEST_DEFAULT_ALL,
view->container->children_type,
GDK_ACTION_COPY);
gimp_dnd_viewable_dest_set (GTK_WIDGET (view),
view->container->children_type,
gimp_container_view_drop_viewable_callback,
NULL);
}
}
void
gimp_container_view_set_preview_size (GimpContainerView *view,
gint preview_size)
{
g_return_if_fail (view != NULL);
g_return_if_fail (GIMP_IS_CONTAINER_VIEW (view));
g_return_if_fail (preview_size > 0 && preview_size <= 256 /* FIXME: 64 */);
view->preview_size = preview_size;
gtk_signal_emit (GTK_OBJECT (view), view_signals[SET_PREVIEW_SIZE]);
}
void
gimp_container_view_set_name_func (GimpContainerView *view,
GimpItemGetNameFunc get_name_func)
{
g_return_if_fail (view != NULL);
g_return_if_fail (GIMP_IS_CONTAINER_VIEW (view));
if (view->get_name_func != get_name_func)
{
view->get_name_func = get_name_func;
}
}
void
gimp_container_view_select_item (GimpContainerView *view,
GimpViewable *viewable)
{
gpointer insert_data;
g_return_if_fail (view != NULL);
g_return_if_fail (GIMP_IS_CONTAINER_VIEW (view));
g_return_if_fail (! viewable || GIMP_IS_VIEWABLE (viewable));
insert_data = g_hash_table_lookup (view->hash_table, viewable);
gtk_signal_emit (GTK_OBJECT (view), view_signals[SELECT_ITEM],
viewable, insert_data);
}
void
gimp_container_view_activate_item (GimpContainerView *view,
GimpViewable *viewable)
{
gpointer insert_data;
g_return_if_fail (view != NULL);
g_return_if_fail (GIMP_IS_CONTAINER_VIEW (view));
g_return_if_fail (viewable != NULL);
g_return_if_fail (GIMP_IS_VIEWABLE (viewable));
insert_data = g_hash_table_lookup (view->hash_table, viewable);
gtk_signal_emit (GTK_OBJECT (view), view_signals[ACTIVATE_ITEM],
viewable, insert_data);
}
void
gimp_container_view_context_item (GimpContainerView *view,
GimpViewable *viewable)
{
gpointer insert_data;
g_return_if_fail (view != NULL);
g_return_if_fail (GIMP_IS_CONTAINER_VIEW (view));
g_return_if_fail (viewable != NULL);
g_return_if_fail (GIMP_IS_VIEWABLE (viewable));
insert_data = g_hash_table_lookup (view->hash_table, viewable);
gtk_signal_emit (GTK_OBJECT (view), view_signals[CONTEXT_ITEM],
viewable, insert_data);
}
void
gimp_container_view_item_selected (GimpContainerView *view,
GimpViewable *viewable)
{
g_return_if_fail (view != NULL);
g_return_if_fail (GIMP_IS_CONTAINER_VIEW (view));
g_return_if_fail (viewable != NULL);
g_return_if_fail (GIMP_IS_VIEWABLE (viewable));
if (view->container && view->context)
{
gimp_context_set_by_type (view->context,
view->container->children_type,
GIMP_OBJECT (viewable));
}
gimp_container_view_select_item (view, viewable);
}
void
gimp_container_view_item_activated (GimpContainerView *view,
GimpViewable *viewable)
{
g_return_if_fail (view != NULL);
g_return_if_fail (GIMP_IS_CONTAINER_VIEW (view));
g_return_if_fail (viewable != NULL);
g_return_if_fail (GIMP_IS_VIEWABLE (viewable));
gimp_container_view_activate_item (view, viewable);
}
void
gimp_container_view_item_context (GimpContainerView *view,
GimpViewable *viewable)
{
g_return_if_fail (view != NULL);
g_return_if_fail (GIMP_IS_CONTAINER_VIEW (view));
g_return_if_fail (viewable != NULL);
g_return_if_fail (GIMP_IS_VIEWABLE (viewable));
gimp_container_view_context_item (view, viewable);
}
static void
gimp_container_view_clear_items (GimpContainerView *view)
{
gtk_signal_emit (GTK_OBJECT (view), view_signals[CLEAR_ITEMS]);
}
static void
gimp_container_view_real_clear_items (GimpContainerView *view)
{
g_hash_table_destroy (view->hash_table);
view->hash_table = g_hash_table_new (g_direct_hash, g_direct_equal);
}
static void
gimp_container_view_add_foreach (GimpViewable *viewable,
GimpContainerView *view)
{
gpointer insert_data = NULL;
gtk_signal_emit (GTK_OBJECT (view), view_signals[INSERT_ITEM],
viewable, -1, &insert_data);
g_hash_table_insert (view->hash_table, viewable, insert_data);
}
static void
gimp_container_view_add (GimpContainerView *view,
GimpViewable *viewable,
GimpContainer *container)
{
gpointer insert_data = NULL;
gint index;
index = gimp_container_get_child_index (container,
GIMP_OBJECT (viewable));
gtk_signal_emit (GTK_OBJECT (view), view_signals[INSERT_ITEM],
viewable, index, &insert_data);
g_hash_table_insert (view->hash_table, viewable, insert_data);
}
static void
gimp_container_view_remove (GimpContainerView *view,
GimpViewable *viewable,
GimpContainer *container)
{
gpointer insert_data;
insert_data = g_hash_table_lookup (view->hash_table, viewable);
if (insert_data)
{
g_hash_table_remove (view->hash_table, viewable);
gtk_signal_emit (GTK_OBJECT (view), view_signals[REMOVE_ITEM],
viewable, insert_data);
}
}
static void
gimp_container_view_reorder (GimpContainerView *view,
GimpViewable *viewable,
gint new_index,
GimpContainer *container)
{
gpointer insert_data;
insert_data = g_hash_table_lookup (view->hash_table, viewable);
if (insert_data)
{
gtk_signal_emit (GTK_OBJECT (view), view_signals[REORDER_ITEM],
viewable, new_index, insert_data);
}
}
static void
gimp_container_view_context_changed (GimpContext *context,
GimpViewable *viewable,
GimpContainerView *view)
{
gpointer insert_data;
insert_data = g_hash_table_lookup (view->hash_table, viewable);
gtk_signal_emit (GTK_OBJECT (view), view_signals[SELECT_ITEM],
viewable, insert_data);
}
static void
gimp_container_view_drop_viewable_callback (GtkWidget *widget,
GimpViewable *viewable,
gpointer data)
{
GimpContainerView *view;
view = GIMP_CONTAINER_VIEW (widget);
gimp_context_set_by_type (view->context,
view->container->children_type,
GIMP_OBJECT (viewable));
}