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/* -*- 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.
*
* $Id$
*/
#if !defined (__EV_EVINCE_DOCUMENT_H_INSIDE__) && !defined (EVINCE_COMPILATION)
#error "Only <evince-document.h> can be included directly."
#endif
#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-page.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);
EvPage * (* get_page) (EvDocument *document,
gint index);
void (* get_page_size) (EvDocument *document,
EvPage *page,
double *width,
double *height);
char * (* get_page_label) (EvDocument *document,
EvPage *page);
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);
gboolean ev_document_doc_mutex_trylock(void);
/* FontConfig mutex */
GMutex *ev_document_get_fc_mutex (void);
void ev_document_fc_mutex_lock (void);
void ev_document_fc_mutex_unlock (void);
gboolean ev_document_fc_mutex_trylock (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);
EvPage *ev_document_get_page (EvDocument *document,
gint index);
void ev_document_get_page_size (EvDocument *document,
EvPage *page,
double *width,
double *height);
char *ev_document_get_page_label (EvDocument *document,
EvPage *page);
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);
/* convenience macro to ease interface addition in the CODE
* section of EV_BACKEND_REGISTER_WITH_CODE (this macro relies on
* the g_define_type_id present within EV_BACKEND_REGISTER_WITH_CODE()).
* usage example:
* EV_BACKEND_REGISTER_WITH_CODE (PdfDocument, pdf_document,
* EV_BACKEND_IMPLEMENT_INTERFACE (EV_TYPE_DOCUMENT_THUMBNAILS,
* pdf_document_document_thumbnails_iface_init));
*/
#define EV_BACKEND_IMPLEMENT_INTERFACE(TYPE_IFACE, iface_init) { \
const GInterfaceInfo g_implement_interface_info = { \
(GInterfaceInitFunc) iface_init, NULL, NULL \
}; \
g_type_module_add_interface (module, \
g_define_type_id, \
TYPE_IFACE, \
&g_implement_interface_info); \
}
/*
* Utility macro used to register backends
*
* use: EV_BACKEND_REGISTER_WITH_CODE(BackendName, backend_name, CODE)
*/
#define EV_BACKEND_REGISTER_WITH_CODE(BackendName, backend_name, CODE) \
\
static GType g_define_type_id = 0; \
\
GType \
backend_name##_get_type (void) \
{ \
return g_define_type_id; \
} \
\
static void backend_name##_init (BackendName *self); \
static void backend_name##_class_init (BackendName##Class *klass); \
static gpointer backend_name##_parent_class = NULL; \
static void backend_name##_class_intern_init (gpointer klass) \
{ \
backend_name##_parent_class = g_type_class_peek_parent (klass); \
backend_name##_class_init ((BackendName##Class *) klass); \
} \
\
G_MODULE_EXPORT GType \
register_evince_backend (GTypeModule *module) \
{ \
const GTypeInfo our_info = { \
sizeof (BackendName##Class), \
NULL, /* base_init */ \
NULL, /* base_finalize */ \
(GClassInitFunc) backend_name##_class_intern_init, \
NULL, \
NULL, /* class_data */ \
sizeof (BackendName), \
0, /* n_preallocs */ \
(GInstanceInitFunc) backend_name##_init \
}; \
\
/* Initialise the i18n stuff */ \
bindtextdomain (GETTEXT_PACKAGE, GNOMELOCALEDIR); \
bind_textdomain_codeset (GETTEXT_PACKAGE, "UTF-8"); \
\
g_define_type_id = g_type_module_register_type (module, \
G_TYPE_OBJECT, \
#BackendName, \
&our_info, \
(GTypeFlags)0); \
\
EV_BACKEND_IMPLEMENT_INTERFACE (EV_TYPE_DOCUMENT, \
backend_name##_document_iface_init); \
\
CODE \
\
return g_define_type_id; \
}
/*
* Utility macro used to register backend
*
* use: EV_BACKEND_REGISTER(BackendName, backend_name)
*/
#define EV_BACKEND_REGISTER(BackendName, backend_name) \
EV_BACKEND_REGISTER_WITH_CODE(BackendName, backend_name, ;)
/*
* A convenience macro for boxed type implementations, which defines a
* type_name_get_type() function registering the boxed type.
*/
#define EV_DEFINE_BOXED_TYPE(TypeName, type_name, copy_func, free_func) \
GType \
type_name##_get_type (void) \
{ \
static volatile gsize g_define_type_id__volatile = 0; \
if (g_once_init_enter (&g_define_type_id__volatile)) { \
GType g_define_type_id = \
g_boxed_type_register_static (g_intern_static_string (#TypeName), \
(GBoxedCopyFunc) copy_func, \
(GBoxedFreeFunc) free_func); \
g_once_init_leave (&g_define_type_id__volatile, g_define_type_id); \
} \
return g_define_type_id__volatile; \
}
/* A convenience macro for GTypeInterface definitions, which declares
* a default vtable initialization function and defines a *_get_type()
* function.
*
* The macro expects the interface initialization function to have the
* name <literal>t_n ## _default_init</literal>, and the interface
* structure to have the name <literal>TN ## Interface</literal>.
*/
#define EV_DEFINE_INTERFACE(TypeName, type_name, TYPE_PREREQ) \
static void type_name##_class_init (TypeName##Iface *klass); \
\
GType \
type_name##_get_type (void) \
{ \
static volatile gsize g_define_type_id__volatile = 0; \
if (g_once_init_enter (&g_define_type_id__volatile)) { \
GType g_define_type_id = \
g_type_register_static_simple (G_TYPE_INTERFACE, \
g_intern_static_string (#TypeName), \
sizeof (TypeName##Iface), \
(GClassInitFunc)type_name##_class_init, \
0, \
(GInstanceInitFunc)NULL, \
(GTypeFlags) 0); \
if (TYPE_PREREQ) \
g_type_interface_add_prerequisite (g_define_type_id, TYPE_PREREQ); \
g_once_init_leave (&g_define_type_id__volatile, g_define_type_id); \
} \
return g_define_type_id__volatile; \
}
G_END_DECLS
#endif /* EV_DOCUMENT_H */
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