backend/ev-render-context.h

   1 /* this file is part of evince, a gnome document viewer
   2  *
   3  *  Copyright (C) 2005 Jonathan Blandford <jrb@gnome.org>
   4  *
   5  * Evince is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 2 of the License, or
   8  * (at your option) any later version.
   9  *
  10  * Evince is distributed in the hope that it will be useful, but
  11  * WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13  * 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 #ifndef EV_RENDER_CONTEXT_H
  21 #define EV_RENDER_CONTEXT_H
  22
  23 #include <glib-object.h>
  24
  25 G_BEGIN_DECLS
  26
  27 typedef struct _EvRenderContext EvRenderContext;
  28 typedef struct _EvRenderContextClass EvRenderContextClass;
  29
  30 #define EV_TYPE_RENDER_CONTEXT          (ev_render_context_get_type())
  31 #define EV_RENDER_CONTEXT(context)      ((EvRenderContext *) (context))
  32 #define EV_RENDER_CONTEXT_CLASS(klass)  (G_TYPE_CHECK_CLASS_CAST((klass), EV_TYPE_RENDER_CONTEXT, EvRenderContext))
  33 #define EV_IS_RENDER_CONTEXT(object)    (G_TYPE_CHECK_INSTANCE_TYPE((object), EV_TYPE_RENDER_CONTEXT))
  34
  35 typedef enum
  36 {
  37         EV_ORIENTATION_PORTRAIT,
  38         EV_ORIENTATION_LANDSCAPE,
  39         EV_ORIENTATION_UPSIDEDOWN,
  40         EV_ORIENTATION_SEASCAPE
  41 } EvOrientation;
  42
  43
  44 struct _EvRenderContextClass
  45 {
  46         GObjectClass klass;
  47 };
  48
  49 struct _EvRenderContext
  50 {
  51         GObject parent;
  52         EvOrientation orientation;
  53         gint page;
  54         gdouble scale;
  55
  56         gpointer data;
  57         GDestroyNotify destroy;
  58 };
  59
  60
  61 GType            ev_render_context_get_type        (void) G_GNUC_CONST;
  62 EvRenderContext *ev_render_context_new             (EvOrientation    orientation,
  63                                                     gint             page,
  64                                                     gdouble          scale);
  65 void             ev_render_context_set_page        (EvRenderContext *rc,
  66                                                     gint             page);
  67 void             ev_render_context_set_orientation (EvRenderContext *rc,
  68                                                     EvOrientation    orientation);
  69 void             ev_render_context_set_scale       (EvRenderContext *rc,
  70                                                     gdouble          scale);
  71
  72
  73 G_END_DECLS
  74
  75 #endif /* !EV_RENDER_CONTEXT */