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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  18  *
  19  */
  20
  21 #include "config.h"
  22
  23 #include "ev-async-renderer.h"
  24
  25 static void ev_async_renderer_class_init (gpointer g_class);
  26
  27 enum
  28 {
  29         RENDER_FINISHED,
  30         LAST_SIGNAL
  31 };
  32
  33 static guint signals[LAST_SIGNAL] = { 0 };
  34
  35 GType
  36 ev_async_renderer_get_type (void)
  37 {
  38         static GType type = 0;
  39
  40         if (G_UNLIKELY (type == 0))
  41         {
  42                 const GTypeInfo our_info =
  43                 {
  44                         sizeof (EvAsyncRendererIface),
  45                         NULL,
  46                         NULL,
  47                         (GClassInitFunc)ev_async_renderer_class_init
  48                 };
  49
  50                 type = g_type_register_static (G_TYPE_INTERFACE,
  51                                                "EvAsyncRenderer",
  52                                                &our_info, (GTypeFlags)0);
  53         }
  54
  55         return type;
  56 }
  57
  58 static void
  59 ev_async_renderer_class_init (gpointer g_class)
  60 {
  61         signals[RENDER_FINISHED] =
  62                 g_signal_new ("render_finished",
  63                               EV_TYPE_ASYNC_RENDERER,
  64                               G_SIGNAL_RUN_LAST,
  65                               G_STRUCT_OFFSET (EvAsyncRendererIface, render_finished),
  66                               NULL, NULL,
  67                               g_cclosure_marshal_VOID__OBJECT,
  68                               G_TYPE_NONE,
  69                               1,
  70                               GDK_TYPE_PIXBUF);
  71 }
  72
  73 void
  74 ev_async_renderer_render_pixbuf (EvAsyncRenderer *async_renderer,
  75                                  int              page,
  76                                  double           scale,
  77                                  int              rotation)
  78 {
  79         EvAsyncRendererIface *iface = EV_ASYNC_RENDERER_GET_IFACE (async_renderer);
  80
  81         iface->render_pixbuf (async_renderer, page, scale, rotation);
  82 }