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/*
* Copyright (C) 2009 Canonical Ltd.
* Author: Robert Ancell <robert.ancell@canonical.com>
*
* 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 3 of the License, or (at your option) any later
* version. See http://www.gnu.org/copyleft/gpl.html the full text of the
* license.
*/
#ifndef _SCANNER_H_
#define _SCANNER_H_
#include <glib-object.h>
G_BEGIN_DECLS
#define SCANNER_TYPE (scanner_get_type ())
#define SCANNER(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), SCANNER_TYPE, Scanner))
typedef struct
{
gchar *name, *label;
} ScanDevice;
typedef struct
{
/* Width, height in pixels */
gint width, height;
/* Bit depth */
gint depth;
/* Number of colour channels */
gint n_channels;
/* Resolution */
gdouble dpi;
/* The device this page came from */
gchar *device;
} ScanPageInfo;
typedef struct
{
/* Line number */
gint number;
/* Number of lines in this packet */
gint n_lines;
/* Width in pixels and format */
gint width, depth;
/* Channel for this line or -1 for all channels */
gint channel;
/* Raw line data */
guchar *data;
gsize data_length;
} ScanLine;
typedef enum
{
SCAN_MODE_DEFAULT,
SCAN_MODE_COLOR,
SCAN_MODE_GRAY,
SCAN_MODE_LINEART
} ScanMode;
typedef enum
{
SCAN_SINGLE,
SCAN_ADF_FRONT,
SCAN_ADF_BACK,
SCAN_ADF_BOTH
} ScanType;
typedef struct
{
gint dpi;
ScanMode scan_mode;
gint depth;
ScanType type;
gint paper_width, paper_height;
} ScanOptions;
typedef struct ScannerPrivate ScannerPrivate;
typedef struct
{
GObject parent_instance;
ScannerPrivate *priv;
} Scanner;
typedef struct
{
GObjectClass parent_class;
void (*update_devices) (Scanner *scanner, GList *devices);
void (*authorize) (Scanner *scanner, const gchar *resource);
void (*expect_page) (Scanner *scanner);
void (*got_page_info) (Scanner *scanner, ScanPageInfo *info);
void (*got_line) (Scanner *scanner, ScanLine *line);
void (*scan_failed) (Scanner *scanner, GError *error);
void (*page_done) (Scanner *scanner);
void (*document_done) (Scanner *scanner);
void (*scanning_changed) (Scanner *scanner);
} ScannerClass;
GType scanner_get_type (void);
Scanner *scanner_new (void);
void scanner_start (Scanner *scanner);
void scanner_authorize (Scanner *scanner, const gchar *username, const gchar *password);
void scanner_redetect (Scanner *scanner);
gboolean scanner_is_scanning (Scanner *scanner);
void scanner_scan (Scanner *scanner, const char *device, ScanOptions *options);
void scanner_cancel (Scanner *scanner);
void scanner_free (Scanner *scanner);
#endif /* _SCANNER_H_ */
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