backend/ev-jobs.h

   1 /* this file is part of evince, a gnome document viewer
   2  *
   3  *  Copyright (C) 2005 Red Hat, Inc
   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_JOBS_H__
  21 #define __EV_JOBS_H__
  22
  23 #include <gtk/gtk.h>
  24 #include "ev-document.h"
  25
  26 G_BEGIN_DECLS
  27
  28 typedef struct _EvJob EvJob;
  29 typedef struct _EvJobClass EvJobClass;
  30
  31 typedef struct _EvJobRender EvJobRender;
  32 typedef struct _EvJobRenderClass EvJobRenderClass;
  33
  34 typedef struct _EvJobThumbnail EvJobThumbnail;
  35 typedef struct _EvJobThumbnailClass EvJobThumbnailClass;
  36
  37 typedef struct _EvJobLinks EvJobLinks;
  38 typedef struct _EvJobLinksClass EvJobLinksClass;
  39
  40 #define EV_TYPE_JOB                          (ev_job_get_type())
  41 #define EV_JOB(object)                       (G_TYPE_CHECK_INSTANCE_CAST((object), EV_TYPE_JOB, EvJob))
  42 #define EV_JOB_CLASS(klass)                  (G_TYPE_CHACK_CLASS_CAST((klass), EV_TYPE_JOB, EvJobClass))
  43 #define EV_IS_JOB(object)                    (G_TYPE_CHECK_INSTANCE_TYPE((object), EV_TYPE_JOB))
  44
  45 #define EV_TYPE_JOB_LINKS                    (ev_job_links_get_type())
  46 #define EV_JOB_LINKS(object)                 (G_TYPE_CHECK_INSTANCE_CAST((object), EV_TYPE_JOB_LINKS, EvJobLinks))
  47 #define EV_JOB_LINKS_CLASS(klass)            (G_TYPE_CHACK_CLASS_CAST((klass), EV_TYPE_JOB_LINKS, EvJobLinksClass))
  48 #define EV_IS_JOB_LINKS(object)              (G_TYPE_CHECK_INSTANCE_TYPE((object), EV_TYPE_JOB_LINKS))
  49
  50 #define EV_TYPE_JOB_RENDER                   (ev_job_render_get_type())
  51 #define EV_JOB_RENDER(object)                (G_TYPE_CHECK_INSTANCE_CAST((object), EV_TYPE_JOB_RENDER, EvJobRender))
  52 #define EV_JOB_RENDER_CLASS(klass)           (G_TYPE_CHACK_CLASS_CAST((klass), EV_TYPE_JOB_RENDER, EvJobRenderClass))
  53 #define EV_IS_JOB_RENDER(object)             (G_TYPE_CHECK_INSTANCE_TYPE((object), EV_TYPE_JOB_RENDER))
  54
  55 #define EV_TYPE_JOB_THUMBNAIL                (ev_job_thumbnail_get_type())
  56 #define EV_JOB_THUMBNAIL(object)             (G_TYPE_CHECK_INSTANCE_CAST((object), EV_TYPE_JOB_THUMBNAIL, EvJobThumbnail))
  57 #define EV_JOB_THUMBNAIL_CLASS(klass)        (G_TYPE_CHACK_CLASS_CAST((klass), EV_TYPE_JOB_THUMBNAIL, EvJobThumbnailClass))
  58 #define EV_IS_JOB_THUMBNAIL(object)          (G_TYPE_CHECK_INSTANCE_TYPE((object), EV_TYPE_JOB_THUMBNAIL))
  59
  60 typedef enum {
  61         EV_JOB_PRIORITY_LOW,
  62         EV_JOB_PRIORITY_HIGH,
  63 } EvJobPriority;
  64
  65 struct _EvJob
  66 {
  67         GObject parent;
  68         EvDocument *document;
  69         gboolean finished;
  70 };
  71
  72 struct _EvJobClass
  73 {
  74         GObjectClass parent_class;
  75
  76         void    (* finished) (EvJob *job);
  77 };
  78
  79 struct _EvJobLinks
  80 {
  81         EvJob parent;
  82
  83         GtkTreeModel *model;
  84 };
  85
  86 struct _EvJobLinksClass
  87 {
  88         EvJobClass parent_class;
  89 };
  90
  91 struct _EvJobRender
  92 {
  93         EvJob parent;
  94
  95         gint page;
  96         double scale;
  97         gint target_width;
  98         gint target_height;
  99         GdkPixbuf *pixbuf;
 100 };
 101
 102 struct _EvJobRenderClass
 103 {
 104         EvJobClass parent_class;
 105 };
 106
 107 struct _EvJobThumbnail
 108 {
 109         EvJob parent;
 110
 111         gint page;
 112         gint requested_width;
 113         GdkPixbuf *thumbnail;
 114 };
 115
 116 struct _EvJobThumbnailClass
 117 {
 118         EvJobClass parent_class;
 119 };
 120
 121
 122 /* Base job class */
 123 GType           ev_job_get_type           (void);
 124 void            ev_job_finished           (EvJob          *job);
 125
 126 /* EvJobLinks */
 127 GType           ev_job_links_get_type     (void);
 128 EvJob          *ev_job_links_new          (EvDocument     *document);
 129 void            ev_job_links_run          (EvJobLinks     *thumbnail);
 130
 131 /* EvJobRender */
 132 GType           ev_job_render_get_type    (void);
 133 EvJob          *ev_job_render_new         (EvDocument     *document,
 134                                            gint            page,
 135                                            double          scale,
 136                                            gint            width,
 137                                            gint            height);
 138 void            ev_job_render_run         (EvJobRender    *thumbnail);
 139
 140 /* EvJobThumbnail */
 141 GType           ev_job_thumbnail_get_type (void);
 142 EvJob          *ev_job_thumbnail_new      (EvDocument     *document,
 143                                            gint            page,
 144                                            gint            requested_width);
 145 void            ev_job_thumbnail_run      (EvJobThumbnail *thumbnail);
 146
 147
 148 G_END_DECLS
 149
 150 #endif /* __EV_JOBS_H__ */