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/*------------------------------------------------------------------------
* Copyright 2008-2009 (c) Jeff Brown <spadix@users.sourceforge.net>
*
* This file is part of the ZBar Bar Code Reader.
*
* The ZBar Bar Code Reader is free software; you can redistribute it
* and/or modify it under the terms of the GNU Lesser Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* The ZBar Bar Code Reader 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 Public License for more details.
*
* You should have received a copy of the GNU Lesser Public License
* along with the ZBar Bar Code Reader; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301 USA
*
* http://sourceforge.net/projects/zbar
*------------------------------------------------------------------------*/
#ifndef __ZBAR_GTK_PRIVATE_H__
#define __ZBAR_GTK_PRIVATE_H__
#include <glib.h>
#include <glib-object.h>
#include <gtk/gtk.h>
#include <zbar.h>
G_BEGIN_DECLS
#define ZBAR_TYPE_GTK_PRIVATE (zbar_gtk_private_get_type())
#define ZBAR_GTK_PRIVATE(obj) \
(G_TYPE_CHECK_INSTANCE_CAST((obj), ZBAR_TYPE_GTK_PRIVATE, ZBarGtkPrivate))
#define ZBAR_GTK_PRIVATE_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST((klass), ZBAR_TYPE_GTK_PRIVATE, \
ZBarGtkPrivateClass))
#define ZBAR_IS_GTK_PRIVATE(obj) \
(G_TYPE_CHECK_INSTANCE_TYPE((obj), ZBAR_TYPE_GTK_PRIVATE))
#define ZBAR_IS_GTK_PRIVATE_CLASS(klass) \
(G_TYPE_CHECK_CLASS_TYPE((klass), ZBAR_TYPE_GTK_PRIVATE))
#define ZBAR_GTK_PRIVATE_GET_CLASS(obj) \
(G_TYPE_INSTANCE_GET_CLASS((obj), ZBAR_TYPE_GTK_PRIVATE, \
ZBarGtkPrivateClass))
/* zbar widget processor thread shared/private data */
typedef struct _ZBarGtkPrivate {
GObject object;
/* these are all owned by the main gui thread */
gint idle_id;
const char *video_device;
gboolean video_enabled, video_enabled_state;
/* messages are queued from the gui thread to the processor thread.
* each message is a GValue containing one of:
* - G_TYPE_INT: state change
* 1 = video enable
* 0 = video disable
* -1 = terminate processor thread
* - G_TYPE_STRING: a named video device to open ("" to close)
* - GDK_TYPE_PIXBUF: an image to scan
*/
GAsyncQueue *queue;
/* current processor state is shared:
* written by processor thread just after opening video or
* scanning an image, read by main gui thread during size_request.
* protected by main gui lock
*/
unsigned req_width, req_height;
unsigned video_width, video_height;
gboolean video_opened;
/* window is shared: owned by main gui thread.
* processor thread only calls draw() and negotiate_format().
* protected by main gui lock (and internal lock)
*/
zbar_window_t *window;
/* video and scanner are owned by the processor thread */
zbar_video_t *video;
zbar_image_scanner_t *scanner;
} ZBarGtkPrivate;
typedef struct _ZBarGtkPrivateClass {
GObjectClass parent_class;
} ZBarGtkPrivateClass;
static GType zbar_gtk_private_get_type(void) G_GNUC_CONST;
G_END_DECLS
#endif
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