backend/ev-jobs.c

   1 #include "ev-jobs.h"
   2 #include "ev-job-queue.h"
   3 #include "ev-document-thumbnails.h"
   4 #include "ev-document-links.h"
   5
   6 static void ev_job_init                 (EvJob               *job);
   7 static void ev_job_class_init           (EvJobClass          *class);
   8 static void ev_job_links_init           (EvJobLinks          *job);
   9 static void ev_job_links_class_init     (EvJobLinksClass     *class);
  10 static void ev_job_render_init          (EvJobRender         *job);
  11 static void ev_job_render_class_init    (EvJobRenderClass    *class);
  12 static void ev_job_thumbnail_init       (EvJobThumbnail      *job);
  13 static void ev_job_thumbnail_class_init (EvJobThumbnailClass *class);
  14
  15 enum
  16 {
  17         FINISHED,
  18         LAST_SIGNAL
  19 };
  20
  21 static guint job_signals[LAST_SIGNAL] = { 0 };
  22
  23 G_DEFINE_TYPE (EvJob, ev_job, G_TYPE_OBJECT)
  24 G_DEFINE_TYPE (EvJobLinks, ev_job_links, EV_TYPE_JOB)
  25 G_DEFINE_TYPE (EvJobRender, ev_job_render, EV_TYPE_JOB)
  26 G_DEFINE_TYPE (EvJobThumbnail, ev_job_thumbnail, EV_TYPE_JOB)
  27
  28
  29 static void ev_job_init (EvJob *job) { /* Do Nothing */ }
  30
  31 static void
  32 ev_job_dispose (GObject *object)
  33 {
  34         EvJob *job;
  35
  36         job = EV_JOB (object);
  37
  38         if (job->document) {
  39                 g_object_unref (job->document);
  40                 job->document = NULL;
  41         }
  42
  43         (* G_OBJECT_CLASS (ev_job_parent_class)->dispose) (object);
  44 }
  45
  46 static void
  47 ev_job_class_init (EvJobClass *class)
  48 {
  49         GObjectClass *oclass;
  50
  51         oclass = G_OBJECT_CLASS (class);
  52
  53         oclass->dispose = ev_job_dispose;
  54
  55         job_signals [FINISHED] =
  56                 g_signal_new ("finished",
  57                               EV_TYPE_JOB,
  58                               G_SIGNAL_RUN_LAST,
  59                               G_STRUCT_OFFSET (EvJobClass, finished),
  60                               NULL, NULL,
  61                               g_cclosure_marshal_VOID__VOID,
  62                               G_TYPE_NONE, 0);
  63 }
  64
  65
  66 static void ev_job_links_init (EvJobLinks *job) { /* Do Nothing */ }
  67
  68 static void
  69 ev_job_links_dispose (GObject *object)
  70 {
  71         EvJobLinks *job;
  72
  73         job = EV_JOB_LINKS (object);
  74
  75         if (job->model) {
  76                 g_object_unref (job->model);
  77                 job->model = NULL;
  78         }
  79
  80         (* G_OBJECT_CLASS (ev_job_links_parent_class)->dispose) (object);
  81 }
  82
  83 static void
  84 ev_job_links_class_init (EvJobLinksClass *class)
  85 {
  86         GObjectClass *oclass;
  87
  88         oclass = G_OBJECT_CLASS (class);
  89
  90         oclass->dispose = ev_job_links_dispose;
  91 }
  92
  93
  94 static void ev_job_render_init (EvJobRender *job) { /* Do Nothing */ }
  95
  96 static void
  97 ev_job_render_dispose (GObject *object)
  98 {
  99         EvJobRender *job;
 100
 101         job = EV_JOB_RENDER (object);
 102
 103         if (job->pixbuf) {
 104                 g_object_unref (job->pixbuf);
 105                 job->pixbuf = NULL;
 106         }
 107
 108         (* G_OBJECT_CLASS (ev_job_render_parent_class)->dispose) (object);
 109 }
 110
 111 static void
 112 ev_job_render_class_init (EvJobRenderClass *class)
 113 {
 114         GObjectClass *oclass;
 115
 116         oclass = G_OBJECT_CLASS (class);
 117
 118         oclass->dispose = ev_job_render_dispose;
 119 }
 120
 121 static void ev_job_thumbnail_init (EvJobThumbnail *job) { /* Do Nothing */ }
 122
 123 static void
 124 ev_job_thumbnail_dispose (GObject *object)
 125 {
 126         EvJobThumbnail *job;
 127
 128         job = EV_JOB_THUMBNAIL (object);
 129
 130         if (job->thumbnail) {
 131                 g_object_unref (job->thumbnail);
 132                 job->thumbnail = NULL;
 133         }
 134
 135         (* G_OBJECT_CLASS (ev_job_thumbnail_parent_class)->dispose) (object);
 136 }
 137
 138 static void
 139 ev_job_thumbnail_class_init (EvJobThumbnailClass *class)
 140 {
 141         GObjectClass *oclass;
 142
 143         oclass = G_OBJECT_CLASS (class);
 144
 145         oclass->dispose = ev_job_thumbnail_dispose;
 146 }
 147
 148 /* Public functions */
 149 void
 150 ev_job_finished (EvJob *job)
 151 {
 152         g_return_if_fail (EV_IS_JOB (job));
 153
 154         g_signal_emit (job, job_signals[FINISHED], 0);
 155 }
 156
 157 EvJob *
 158 ev_job_links_new (EvDocument *document)
 159 {
 160         EvJob *job;
 161
 162         job = g_object_new (EV_TYPE_JOB_LINKS, NULL);
 163         job->document = g_object_ref (document);
 164
 165         return job;
 166 }
 167
 168 void
 169 ev_job_links_run (EvJobLinks *job)
 170 {
 171         g_return_if_fail (EV_IS_JOB_LINKS (job));
 172
 173         g_mutex_lock (EV_DOC_MUTEX);
 174         job->model = ev_document_links_get_links_model (EV_DOCUMENT_LINKS (EV_JOB (job)->document));
 175         EV_JOB (job)->finished = TRUE;
 176         g_mutex_unlock (EV_DOC_MUTEX);
 177 }
 178
 179
 180 EvJob *
 181 ev_job_render_new (EvDocument *document,
 182                    gint        page,
 183                    double      scale,
 184                    gint        width,
 185                    gint        height)
 186 {
 187         EvJobRender *job;
 188
 189         job = g_object_new (EV_TYPE_JOB_RENDER, NULL);
 190
 191         EV_JOB (job)->document = g_object_ref (document);
 192         job->page = page;
 193         job->scale = scale;
 194         job->target_width = width;
 195         job->target_height = height;
 196
 197         return EV_JOB (job);
 198 }
 199
 200 void
 201 ev_job_render_run (EvJobRender *job)
 202 {
 203         g_return_if_fail (EV_IS_JOB_RENDER (job));
 204
 205         g_mutex_lock (EV_DOC_MUTEX);
 206
 207         ev_document_set_scale (EV_JOB (job)->document, job->scale);
 208         ev_document_set_page (EV_JOB (job)->document, job->page);
 209         job->pixbuf = ev_document_render_pixbuf (EV_JOB (job)->document);
 210         EV_JOB (job)->finished = TRUE;
 211
 212         g_mutex_unlock (EV_DOC_MUTEX);
 213 }
 214
 215 EvJob *
 216 ev_job_thumbnail_new (EvDocument *document,
 217                       gint        page,
 218                       gint        requested_width)
 219 {
 220         EvJobThumbnail *job;
 221
 222         job = g_object_new (EV_TYPE_JOB_THUMBNAIL, NULL);
 223
 224         EV_JOB (job)->document = g_object_ref (document);
 225         job->page = page;
 226         job->requested_width = requested_width;
 227
 228         return EV_JOB (job);
 229 }
 230
 231 void
 232 ev_job_thumbnail_run (EvJobThumbnail *job)
 233 {
 234         g_return_if_fail (EV_IS_JOB_THUMBNAIL (job));
 235
 236         g_mutex_lock (EV_DOC_MUTEX);
 237
 238         job->thumbnail =
 239                 ev_document_thumbnails_get_thumbnail (EV_DOCUMENT_THUMBNAILS (EV_JOB (job)->document),
 240                                                       job->page,
 241                                                       job->requested_width,
 242                                                       TRUE);
 243         EV_JOB (job)->finished = TRUE;
 244
 245         g_mutex_unlock (EV_DOC_MUTEX);
 246 }