libdocument/ev-async-renderer.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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  18  *
  19  */
  20
  21 #include "config.h"
  22
  23 #include "ev-async-renderer.h"
  24 #include "ev-document.h"
  25
  26 enum
  27 {
  28         RENDER_FINISHED,
  29         LAST_SIGNAL
  30 };
  31
  32 static guint signals[LAST_SIGNAL] = { 0 };
  33
  34 G_DEFINE_INTERFACE (EvAsyncRenderer, ev_async_renderer, 0)
  35
  36 static void
  37 ev_async_renderer_default_init (EvAsyncRendererInterface *klass)
  38 {
  39         static gboolean initialized = FALSE;
  40
  41         if (!initialized) {
  42                 signals[RENDER_FINISHED] =
  43                         g_signal_new ("render_finished",
  44                                       EV_TYPE_ASYNC_RENDERER,
  45                                       G_SIGNAL_RUN_LAST,
  46                                       G_STRUCT_OFFSET (EvAsyncRendererInterface, render_finished),
  47                                       NULL, NULL,
  48                                       g_cclosure_marshal_VOID__OBJECT,
  49                                       G_TYPE_NONE,
  50                                       1,
  51                                       GDK_TYPE_PIXBUF);
  52                 initialized = TRUE;
  53         }
  54 }
  55
  56 void
  57 ev_async_renderer_render_pixbuf (EvAsyncRenderer *async_renderer,
  58                                  int              page,
  59                                  double           scale,
  60                                  int              rotation)
  61 {
  62         EvAsyncRendererInterface *iface = EV_ASYNC_RENDERER_GET_IFACE (async_renderer);
  63
  64         iface->render_pixbuf (async_renderer, page, scale, rotation);
  65 }