backend/ev-document.c

   1 /* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8; c-indent-level: 8 -*- */
   2 /*
   3  *  Copyright (C) 2004 Marco Pesenti Gritti
   4  *
   5  *  This program is free software; you can redistribute it and/or modify
   6  *  it under the terms of the GNU General Public License as published by
   7  *  the Free Software Foundation; either version 2, or (at your option)
   8  *  any later version.
   9  *
  10  *  This program is distributed in the hope that it will be useful,
  11  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  *  GNU General Public License for more details.
  14  *
  15  *  You should have received a copy of the GNU General Public License
  16  *  along with this program; if not, write to the Free Software
  17  *  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  18  *
  19  */
  20
  21 #include "config.h"
  22
  23 #include "ev-document.h"
  24 #include "ev-backend-marshalers.h"
  25
  26 static void ev_document_class_init (gpointer g_class);
  27
  28 enum
  29 {
  30         CHANGED,
  31         LAST_SIGNAL
  32 };
  33
  34 static guint signals[LAST_SIGNAL] = { 0 };
  35
  36 GType
  37 ev_document_get_type (void)
  38 {
  39         static GType type = 0;
  40
  41         if (G_UNLIKELY (type == 0))
  42         {
  43                 static const GTypeInfo our_info =
  44                 {
  45                         sizeof (EvDocumentIface),
  46                         NULL,
  47                         NULL,
  48                         (GClassInitFunc)ev_document_class_init
  49                 };
  50
  51                 type = g_type_register_static (G_TYPE_INTERFACE,
  52                                                "EvDocument",
  53                                                &our_info, (GTypeFlags)0);
  54         }
  55
  56         return type;
  57 }
  58
  59 static void
  60 ev_document_class_init (gpointer g_class)
  61 {
  62         signals[CHANGED] =
  63                 g_signal_new ("changed",
  64                               EV_TYPE_DOCUMENT,
  65                               G_SIGNAL_RUN_LAST,
  66                               G_STRUCT_OFFSET (EvDocumentIface, changed),
  67                               NULL, NULL,
  68                               g_cclosure_marshal_VOID__VOID,
  69                               G_TYPE_NONE,
  70                               0);
  71
  72         g_object_interface_install_property (g_class,
  73                                 g_param_spec_string ("title",
  74                                                      "Document Title",
  75                                                      "The title of the document",
  76                                                      NULL,
  77                                                      G_PARAM_READABLE));
  78 }
  79
  80 gboolean
  81 ev_document_load (EvDocument  *document,
  82                   const char  *uri,
  83                   GError     **error)
  84 {
  85         EvDocumentIface *iface = EV_DOCUMENT_GET_IFACE (document);
  86         return iface->load (document, uri, error);
  87 }
  88
  89 char *
  90 ev_document_get_title (EvDocument  *document)
  91 {
  92         char *title;
  93
  94         g_object_get (document, "title", &title, NULL);
  95
  96         return title;
  97 }
  98
  99 int
 100 ev_document_get_n_pages (EvDocument  *document)
 101 {
 102         EvDocumentIface *iface = EV_DOCUMENT_GET_IFACE (document);
 103         return iface->get_n_pages (document);
 104 }
 105
 106 void
 107 ev_document_set_page (EvDocument  *document,
 108                       int          page)
 109 {
 110         EvDocumentIface *iface = EV_DOCUMENT_GET_IFACE (document);
 111         iface->set_page (document, page);
 112 }
 113
 114 int
 115 ev_document_get_page (EvDocument *document)
 116 {
 117         EvDocumentIface *iface = EV_DOCUMENT_GET_IFACE (document);
 118         return iface->get_page (document);
 119 }
 120
 121 void
 122 ev_document_set_target (EvDocument  *document,
 123                         GdkDrawable *target)
 124 {
 125         EvDocumentIface *iface = EV_DOCUMENT_GET_IFACE (document);
 126         iface->set_target (document, target);
 127 }
 128
 129 void
 130 ev_document_set_scale (EvDocument   *document,
 131                        double        scale)
 132 {
 133         EvDocumentIface *iface = EV_DOCUMENT_GET_IFACE (document);
 134         iface->set_scale (document, scale);
 135 }
 136
 137 void
 138 ev_document_set_page_offset (EvDocument  *document,
 139                              int          x,
 140                              int          y)
 141 {
 142         EvDocumentIface *iface = EV_DOCUMENT_GET_IFACE (document);
 143         iface->set_page_offset (document, x, y);
 144 }
 145
 146 void
 147 ev_document_get_page_size   (EvDocument   *document,
 148                              int          *width,
 149                              int          *height)
 150 {
 151         EvDocumentIface *iface = EV_DOCUMENT_GET_IFACE (document);
 152         iface->get_page_size (document, width, height);
 153 }
 154
 155 void
 156 ev_document_render (EvDocument  *document,
 157                     int          clip_x,
 158                     int          clip_y,
 159                     int          clip_width,
 160                     int          clip_height)
 161 {
 162         EvDocumentIface *iface = EV_DOCUMENT_GET_IFACE (document);
 163         iface->render (document, clip_x, clip_y, clip_width, clip_height);
 164 }
 165
 166 void
 167 ev_document_changed (EvDocument *document)
 168 {
 169         g_signal_emit (G_OBJECT (document), signals[CHANGED], 0);
 170 }