/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8; c-indent-level: 8 -*- */
/*
 *  Copyright (C) 2000-2003 Marco Pesenti Gritti
 *
 *  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, 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.
 *
 *  $Id$
 */

#ifndef EV_DOCUMENT_H
#define EV_DOCUMENT_H

#include <glib-object.h>
#include <glib.h>
#include <gdk/gdk.h>
#include <cairo.h>

#include "ev-document-info.h"
#include "ev-render-context.h"

G_BEGIN_DECLS

#define EV_TYPE_DOCUMENT            (ev_document_get_type ())
#define EV_DOCUMENT(o)              (G_TYPE_CHECK_INSTANCE_CAST ((o), EV_TYPE_DOCUMENT, EvDocument))
#define EV_DOCUMENT_IFACE(k)        (G_TYPE_CHECK_CLASS_CAST((k), EV_TYPE_DOCUMENT, EvDocumentIface))
#define EV_IS_DOCUMENT(o)           (G_TYPE_CHECK_INSTANCE_TYPE ((o), EV_TYPE_DOCUMENT))
#define EV_IS_DOCUMENT_IFACE(k)     (G_TYPE_CHECK_CLASS_TYPE ((k), EV_TYPE_DOCUMENT))
#define EV_DOCUMENT_GET_IFACE(inst) (G_TYPE_INSTANCE_GET_INTERFACE ((inst), EV_TYPE_DOCUMENT, EvDocumentIface))

typedef struct _EvDocument        EvDocument;
typedef struct _EvDocumentIface   EvDocumentIface;
typedef struct _EvPageCache       EvPageCache;
typedef struct _EvPageCacheClass  EvPageCacheClass;

#define EV_DOCUMENT_ERROR ev_document_error_quark ()
#define EV_DOC_MUTEX_LOCK (ev_document_doc_mutex_lock ())
#define EV_DOC_MUTEX_UNLOCK (ev_document_doc_mutex_unlock ())

typedef enum
{
        EV_DOCUMENT_ERROR_INVALID,
        EV_DOCUMENT_ERROR_ENCRYPTED
} EvDocumentError;

typedef struct {
        double x;
        double y;
} EvPoint;

typedef struct {
        double x1;
        double y1;
        double x2;
        double y2;
} EvRectangle;

struct _EvDocumentIface
{
        GTypeInterface base_iface;

        /* Methods  */
        gboolean          (* load)            (EvDocument      *document,
                                               const char      *uri,
                                               GError         **error);
        gboolean          (* save)            (EvDocument      *document,
                                               const char      *uri,
                                               GError         **error);
        int               (* get_n_pages)     (EvDocument      *document);
        void              (* get_page_size)   (EvDocument      *document,
                                               int              page,
                                               double          *width,
                                               double          *height);
        char            * (* get_page_label)  (EvDocument      *document,
                                               int              page);
        gboolean          (* can_get_text)    (EvDocument      *document);
        char            * (* get_text)        (EvDocument      *document,
                                               int              page,
                                               EvRectangle     *rect);
        gboolean          (* has_attachments) (EvDocument      *document);
        GList           * (* get_attachments) (EvDocument      *document);
        cairo_surface_t * (* render)          (EvDocument      *document,
                                               EvRenderContext *rc);
        EvDocumentInfo *  (* get_info)        (EvDocument      *document);
};

GType            ev_document_get_type         (void) G_GNUC_CONST;
GQuark           ev_document_error_quark      (void);

/* Document mutex */
GMutex          *ev_document_get_doc_mutex    (void);
void             ev_document_doc_mutex_lock   (void);
void             ev_document_doc_mutex_unlock (void);

/* FontConfig mutex */
GMutex          *ev_document_get_fc_mutex     (void);
void             ev_document_fc_mutex_lock    (void);
void             ev_document_fc_mutex_unlock  (void);

EvDocumentInfo  *ev_document_get_info         (EvDocument      *document);
gboolean         ev_document_load             (EvDocument      *document,
                                               const char      *uri,
                                               GError         **error);
gboolean         ev_document_save             (EvDocument      *document,
                                               const char      *uri,
                                               GError         **error);
int              ev_document_get_n_pages      (EvDocument      *document);
void             ev_document_get_page_size    (EvDocument      *document,
                                               int              page,
                                               double          *width,
                                               double          *height);
char            *ev_document_get_page_label   (EvDocument      *document,
                                               int              page);
gboolean         ev_document_can_get_text     (EvDocument      *document);
char            *ev_document_get_text         (EvDocument      *document,
                                               int              page,
                                               EvRectangle     *rect);
gboolean         ev_document_has_attachments  (EvDocument      *document);
GList           *ev_document_get_attachments  (EvDocument      *document);
cairo_surface_t *ev_document_render           (EvDocument      *document,
                                               EvRenderContext *rc);

gint            ev_rect_cmp                   (EvRectangle    *a,
                                               EvRectangle    *b);
G_END_DECLS

#endif /* EV_DOCUMENT_H */