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         PAGE_CHANGED,
  31         SCALE_CHANGED,
  32         LAST_SIGNAL
  33 };
  34
  35 static guint signals[LAST_SIGNAL] = { 0 };
  36
  37 GType
  38 ev_document_get_type (void)
  39 {
  40         static GType type = 0;
  41
  42         if (G_UNLIKELY (type == 0))
  43         {
  44                 static const GTypeInfo our_info =
  45                 {
  46                         sizeof (EvDocumentIface),
  47                         NULL,
  48                         NULL,
  49                         (GClassInitFunc)ev_document_class_init
  50                 };
  51
  52                 type = g_type_register_static (G_TYPE_INTERFACE,
  53                                                "EvDocument",
  54                                                &our_info, (GTypeFlags)0);
  55         }
  56
  57         return type;
  58 }
  59
  60 GQuark
  61 ev_document_error_quark (void)
  62 {
  63   static GQuark q = 0;
  64   if (q == 0)
  65     q = g_quark_from_static_string ("ev-document-error-quark");
  66
  67   return q;
  68 }
  69
  70 static void
  71 ev_document_class_init (gpointer g_class)
  72 {
  73         signals[PAGE_CHANGED] =
  74                 g_signal_new ("page_changed",
  75                               EV_TYPE_DOCUMENT,
  76                               G_SIGNAL_RUN_LAST,
  77                               G_STRUCT_OFFSET (EvDocumentIface, page_changed),
  78                               NULL, NULL,
  79                               g_cclosure_marshal_VOID__VOID,
  80                               G_TYPE_NONE,
  81                               0);
  82
  83         signals[SCALE_CHANGED] =
  84                 g_signal_new ("scale_changed",
  85                               EV_TYPE_DOCUMENT,
  86                               G_SIGNAL_RUN_LAST,
  87                               G_STRUCT_OFFSET (EvDocumentIface, scale_changed),
  88                               NULL, NULL,
  89                               g_cclosure_marshal_VOID__VOID,
  90                               G_TYPE_NONE,
  91                               0);
  92
  93         g_object_interface_install_property (g_class,
  94                                 g_param_spec_string ("title",
  95                                                      "Document Title",
  96                                                      "The title of the document",
  97                                                      NULL,
  98                                                      G_PARAM_READABLE));
  99 }
 100
 101 gboolean
 102 ev_document_load (EvDocument  *document,
 103                   const char  *uri,
 104                   GError     **error)
 105 {
 106         EvDocumentIface *iface = EV_DOCUMENT_GET_IFACE (document);
 107         return iface->load (document, uri, error);
 108 }
 109
 110 gboolean
 111 ev_document_save (EvDocument  *document,
 112                   const char  *uri,
 113                   GError     **error)
 114 {
 115         EvDocumentIface *iface = EV_DOCUMENT_GET_IFACE (document);
 116         return iface->save (document, uri, error);
 117 }
 118
 119 char *
 120 ev_document_get_title (EvDocument  *document)
 121 {
 122         char *title;
 123
 124         g_object_get (document, "title", &title, NULL);
 125
 126         return title;
 127 }
 128
 129 int
 130 ev_document_get_n_pages (EvDocument  *document)
 131 {
 132         EvDocumentIface *iface = EV_DOCUMENT_GET_IFACE (document);
 133         return iface->get_n_pages (document);
 134 }
 135
 136 void
 137 ev_document_set_page (EvDocument  *document,
 138                       int          page)
 139 {
 140         EvDocumentIface *iface = EV_DOCUMENT_GET_IFACE (document);
 141         iface->set_page (document, page);
 142 }
 143
 144 int
 145 ev_document_get_page (EvDocument *document)
 146 {
 147         EvDocumentIface *iface = EV_DOCUMENT_GET_IFACE (document);
 148         return iface->get_page (document);
 149 }
 150
 151 void
 152 ev_document_set_target (EvDocument  *document,
 153                         GdkDrawable *target)
 154 {
 155         EvDocumentIface *iface = EV_DOCUMENT_GET_IFACE (document);
 156         iface->set_target (document, target);
 157 }
 158
 159 void
 160 ev_document_set_scale (EvDocument   *document,
 161                        double        scale)
 162 {
 163         EvDocumentIface *iface = EV_DOCUMENT_GET_IFACE (document);
 164         iface->set_scale (document, scale);
 165 }
 166
 167 void
 168 ev_document_set_page_offset (EvDocument  *document,
 169                              int          x,
 170                              int          y)
 171 {
 172         EvDocumentIface *iface = EV_DOCUMENT_GET_IFACE (document);
 173         iface->set_page_offset (document, x, y);
 174 }
 175
 176 void
 177 ev_document_get_page_size   (EvDocument   *document,
 178                              int           page,
 179                              int          *width,
 180                              int          *height)
 181 {
 182         EvDocumentIface *iface = EV_DOCUMENT_GET_IFACE (document);
 183         iface->get_page_size (document, page, width, height);
 184 }
 185
 186 char *
 187 ev_document_get_text (EvDocument   *document,
 188                       GdkRectangle *rect)
 189 {
 190         EvDocumentIface *iface = EV_DOCUMENT_GET_IFACE (document);
 191         return iface->get_text (document, rect);
 192 }
 193
 194 EvLink *
 195 ev_document_get_link (EvDocument   *document,
 196                       int           x,
 197                       int           y)
 198 {
 199         EvDocumentIface *iface = EV_DOCUMENT_GET_IFACE (document);
 200         return iface->get_link (document, x, y);
 201 }
 202
 203 void
 204 ev_document_render (EvDocument  *document,
 205                     int          clip_x,
 206                     int          clip_y,
 207                     int          clip_width,
 208                     int          clip_height)
 209 {
 210         EvDocumentIface *iface = EV_DOCUMENT_GET_IFACE (document);
 211         iface->render (document, clip_x, clip_y, clip_width, clip_height);
 212 }
 213
 214 void
 215 ev_document_page_changed (EvDocument *document)
 216 {
 217         g_signal_emit (G_OBJECT (document), signals[PAGE_CHANGED], 0);
 218 }
 219
 220 void
 221 ev_document_scale_changed (EvDocument *document)
 222 {
 223         g_signal_emit (G_OBJECT (document), signals[SCALE_CHANGED], 0);
 224 }