libview/ev-jobs.h

   1 /* this file is part of evince, a gnome document viewer
   2  *
   3  *  Copyright (C) 2008 Carlos Garcia Campos <carlosgc@gnome.org>
   4  *  Copyright (C) 2005 Red Hat, Inc
   5  *
   6  * Evince is free software; you can redistribute it and/or modify it
   7  * under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 2 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * Evince is distributed in the hope that it will be useful, but
  12  * WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program; if not, write to the Free Software
  18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
  19  */
  20
  21 #if !defined (__EV_EVINCE_VIEW_H_INSIDE__) && !defined (EVINCE_COMPILATION)
  22 #error "Only <evince-view.h> can be included directly."
  23 #endif
  24
  25 #ifndef __EV_JOBS_H__
  26 #define __EV_JOBS_H__
  27
  28 #include <gio/gio.h>
  29 #include <gtk/gtk.h>
  30 #include <cairo.h>
  31
  32 #include <evince-document.h>
  33
  34 G_BEGIN_DECLS
  35
  36 typedef struct _EvJob EvJob;
  37 typedef struct _EvJobClass EvJobClass;
  38
  39 typedef struct _EvJobRender EvJobRender;
  40 typedef struct _EvJobRenderClass EvJobRenderClass;
  41
  42 typedef struct _EvJobPageData EvJobPageData;
  43 typedef struct _EvJobPageDataClass EvJobPageDataClass;
  44
  45 typedef struct _EvJobThumbnail EvJobThumbnail;
  46 typedef struct _EvJobThumbnailClass EvJobThumbnailClass;
  47
  48 typedef struct _EvJobLinks EvJobLinks;
  49 typedef struct _EvJobLinksClass EvJobLinksClass;
  50
  51 typedef struct _EvJobAttachments EvJobAttachments;
  52 typedef struct _EvJobAttachmentsClass EvJobAttachmentsClass;
  53
  54 typedef struct _EvJobFonts EvJobFonts;
  55 typedef struct _EvJobFontsClass EvJobFontsClass;
  56
  57 typedef struct _EvJobLoad EvJobLoad;
  58 typedef struct _EvJobLoadClass EvJobLoadClass;
  59
  60 typedef struct _EvJobSave EvJobSave;
  61 typedef struct _EvJobSaveClass EvJobSaveClass;
  62
  63 typedef struct _EvJobFind EvJobFind;
  64 typedef struct _EvJobFindClass EvJobFindClass;
  65
  66 typedef struct _EvJobLayers EvJobLayers;
  67 typedef struct _EvJobLayersClass EvJobLayersClass;
  68
  69 typedef struct _EvJobExport EvJobExport;
  70 typedef struct _EvJobExportClass EvJobExportClass;
  71
  72 typedef struct _EvJobPrint EvJobPrint;
  73 typedef struct _EvJobPrintClass EvJobPrintClass;
  74
  75 #define EV_TYPE_JOB                          (ev_job_get_type())
  76 #define EV_JOB(object)                       (G_TYPE_CHECK_INSTANCE_CAST((object), EV_TYPE_JOB, EvJob))
  77 #define EV_JOB_CLASS(klass)                  (G_TYPE_CHECK_CLASS_CAST((klass), EV_TYPE_JOB, EvJobClass))
  78 #define EV_IS_JOB(object)                    (G_TYPE_CHECK_INSTANCE_TYPE((object), EV_TYPE_JOB))
  79 #define EV_JOB_GET_CLASS(object)             (G_TYPE_INSTANCE_GET_CLASS((object), EV_TYPE_JOB, EvJobClass))
  80
  81 #define EV_TYPE_JOB_LINKS                    (ev_job_links_get_type())
  82 #define EV_JOB_LINKS(object)                 (G_TYPE_CHECK_INSTANCE_CAST((object), EV_TYPE_JOB_LINKS, EvJobLinks))
  83 #define EV_JOB_LINKS_CLASS(klass)            (G_TYPE_CHECK_CLASS_CAST((klass), EV_TYPE_JOB_LINKS, EvJobLinksClass))
  84 #define EV_IS_JOB_LINKS(object)              (G_TYPE_CHECK_INSTANCE_TYPE((object), EV_TYPE_JOB_LINKS))
  85
  86 #define EV_TYPE_JOB_ATTACHMENTS              (ev_job_attachments_get_type())
  87 #define EV_JOB_ATTACHMENTS(object)           (G_TYPE_CHECK_INSTANCE_CAST((object), EV_TYPE_JOB_ATTACHMENTS, EvJobAttachments))
  88 #define EV_JOB_ATTACHMENTS_CLASS(klass)      (G_TYPE_CHECK_CLASS_CAST((klass), EV_TYPE_JOB_ATTACHMENTS, EvJobAttachmentsClass))
  89 #define EV_IS_JOB_ATTACHMENTS(object)        (G_TYPE_CHECK_INSTANCE_TYPE((object), EV_TYPE_JOB_ATTACHMENTS))
  90
  91 #define EV_TYPE_JOB_RENDER                   (ev_job_render_get_type())
  92 #define EV_JOB_RENDER(object)                (G_TYPE_CHECK_INSTANCE_CAST((object), EV_TYPE_JOB_RENDER, EvJobRender))
  93 #define EV_JOB_RENDER_CLASS(klass)           (G_TYPE_CHECK_CLASS_CAST((klass), EV_TYPE_JOB_RENDER, EvJobRenderClass))
  94 #define EV_IS_JOB_RENDER(object)             (G_TYPE_CHECK_INSTANCE_TYPE((object), EV_TYPE_JOB_RENDER))
  95
  96 #define EV_TYPE_JOB_PAGE_DATA                (ev_job_page_data_get_type())
  97 #define EV_JOB_PAGE_DATA(object)             (G_TYPE_CHECK_INSTANCE_CAST((object), EV_TYPE_JOB_PAGE_DATA, EvJobPageData))
  98 #define EV_JOB_PAGE_DATA_CLASS(klass)        (G_TYPE_CHECK_CLASS_CAST((klass), EV_TYPE_JOB_PAGE_DATA, EvJobPageDataClass))
  99 #define EV_IS_JOB_PAGE_DATA(object)          (G_TYPE_CHECK_INSTANCE_TYPE((object), EV_TYPE_JOB_PAGE_DATA))
 100
 101 #define EV_TYPE_JOB_THUMBNAIL                (ev_job_thumbnail_get_type())
 102 #define EV_JOB_THUMBNAIL(object)             (G_TYPE_CHECK_INSTANCE_CAST((object), EV_TYPE_JOB_THUMBNAIL, EvJobThumbnail))
 103 #define EV_JOB_THUMBNAIL_CLASS(klass)        (G_TYPE_CHECK_CLASS_CAST((klass), EV_TYPE_JOB_THUMBNAIL, EvJobThumbnailClass))
 104 #define EV_IS_JOB_THUMBNAIL(object)          (G_TYPE_CHECK_INSTANCE_TYPE((object), EV_TYPE_JOB_THUMBNAIL))
 105
 106 #define EV_TYPE_JOB_FONTS                    (ev_job_fonts_get_type())
 107 #define EV_JOB_FONTS(object)                 (G_TYPE_CHECK_INSTANCE_CAST((object), EV_TYPE_JOB_FONTS, EvJobFonts))
 108 #define EV_JOB_FONTS_CLASS(klass)            (G_TYPE_CHECK_CLASS_CAST((klass), EV_TYPE_JOB_FONTS, EvJobFontsClass))
 109 #define EV_IS_JOB_FONTS(object)              (G_TYPE_CHECK_INSTANCE_TYPE((object), EV_TYPE_JOB_FONTS))
 110
 111 #define EV_TYPE_JOB_LOAD                     (ev_job_load_get_type())
 112 #define EV_JOB_LOAD(object)                  (G_TYPE_CHECK_INSTANCE_CAST((object), EV_TYPE_JOB_LOAD, EvJobLoad))
 113 #define EV_JOB_LOAD_CLASS(klass)             (G_TYPE_CHECK_CLASS_CAST((klass), EV_TYPE_JOB_LOAD, EvJobLoadClass))
 114 #define EV_IS_JOB_LOAD(object)               (G_TYPE_CHECK_INSTANCE_TYPE((object), EV_TYPE_JOB_LOAD))
 115
 116 #define EV_TYPE_JOB_SAVE                     (ev_job_save_get_type())
 117 #define EV_JOB_SAVE(object)                  (G_TYPE_CHECK_INSTANCE_CAST((object), EV_TYPE_JOB_SAVE, EvJobSave))
 118 #define EV_JOB_SAVE_CLASS(klass)             (G_TYPE_CHECK_CLASS_CAST((klass), EV_TYPE_JOB_SAVE, EvJobSaveClass))
 119 #define EV_IS_JOB_SAVE(object)               (G_TYPE_CHECK_INSTANCE_TYPE((object), EV_TYPE_JOB_SAVE))
 120
 121 #define EV_TYPE_JOB_FIND                     (ev_job_find_get_type())
 122 #define EV_JOB_FIND(object)                  (G_TYPE_CHECK_INSTANCE_CAST((object), EV_TYPE_JOB_FIND, EvJobFind))
 123 #define EV_JOB_FIND_CLASS(klass)             (G_TYPE_CHECK_CLASS_CAST((klass), EV_TYPE_JOB_FIND, EvJobFindClass))
 124 #define EV_IS_JOB_FIND(object)               (G_TYPE_CHECK_INSTANCE_TYPE((object), EV_TYPE_JOB_FIND))
 125
 126 #define EV_TYPE_JOB_LAYERS                   (ev_job_layers_get_type())
 127 #define EV_JOB_LAYERS(object)                (G_TYPE_CHECK_INSTANCE_CAST((object), EV_TYPE_JOB_LAYERS, EvJobLayers))
 128 #define EV_JOB_LAYERS_CLASS(klass)           (G_TYPE_CHECK_CLASS_CAST((klass), EV_TYPE_JOB_LAYERS, EvJobLayersClass))
 129 #define EV_IS_JOB_LAYERS(object)             (G_TYPE_CHECK_INSTANCE_TYPE((object), EV_TYPE_JOB_LAYERS))
 130
 131 #define EV_TYPE_JOB_EXPORT                    (ev_job_export_get_type())
 132 #define EV_JOB_EXPORT(object)                 (G_TYPE_CHECK_INSTANCE_CAST((object), EV_TYPE_JOB_EXPORT, EvJobExport))
 133 #define EV_JOB_EXPORT_CLASS(klass)            (G_TYPE_CHECK_CLASS_CAST((klass), EV_TYPE_JOB_EXPORT, EvJobExportClass))
 134 #define EV_IS_JOB_EXPORT(object)              (G_TYPE_CHECK_INSTANCE_TYPE((object), EV_TYPE_JOB_EXPORT))
 135
 136 #define EV_TYPE_JOB_PRINT                    (ev_job_print_get_type())
 137 #define EV_JOB_PRINT(object)                 (G_TYPE_CHECK_INSTANCE_CAST((object), EV_TYPE_JOB_PRINT, EvJobPrint))
 138 #define EV_JOB_PRINT_CLASS(klass)            (G_TYPE_CHECK_CLASS_CAST((klass), EV_TYPE_JOB_PRINT, EvJobPrintClass))
 139 #define EV_IS_JOB_PRINT(object)              (G_TYPE_CHECK_INSTANCE_TYPE((object), EV_TYPE_JOB_PRINT))
 140
 141 typedef enum {
 142         EV_JOB_RUN_THREAD,
 143         EV_JOB_RUN_MAIN_LOOP
 144 } EvJobRunMode;
 145
 146 struct _EvJob
 147 {
 148         GObject parent;
 149
 150         EvDocument *document;
 151
 152         EvJobRunMode run_mode;
 153
 154         guint cancelled : 1;
 155         guint finished : 1;
 156         guint failed : 1;
 157
 158         GError *error;
 159         GCancellable *cancellable;
 160
 161         guint idle_finished_id;
 162         guint idle_cancelled_id;
 163 };
 164
 165 struct _EvJobClass
 166 {
 167         GObjectClass parent_class;
 168
 169         gboolean (*run)         (EvJob *job);
 170
 171         /* Signals */
 172         void     (* cancelled)  (EvJob *job);
 173         void     (* finished)   (EvJob *job);
 174 };
 175
 176 struct _EvJobLinks
 177 {
 178         EvJob parent;
 179
 180         GtkTreeModel *model;
 181 };
 182
 183 struct _EvJobLinksClass
 184 {
 185         EvJobClass parent_class;
 186 };
 187
 188 struct _EvJobAttachments
 189 {
 190         EvJob parent;
 191
 192         GList *attachments;
 193 };
 194
 195 struct _EvJobAttachmentsClass
 196 {
 197         EvJobClass parent_class;
 198 };
 199
 200 struct _EvJobRender
 201 {
 202         EvJob parent;
 203
 204         gint page;
 205         gint rotation;
 206         gdouble scale;
 207
 208         gboolean page_ready;
 209         gint target_width;
 210         gint target_height;
 211         cairo_surface_t *surface;
 212
 213         gboolean include_selection;
 214         cairo_surface_t *selection;
 215         GdkRegion *selection_region;
 216         EvRectangle selection_points;
 217         EvSelectionStyle selection_style;
 218         GdkColor base;
 219         GdkColor text;
 220 };
 221
 222 struct _EvJobRenderClass
 223 {
 224         EvJobClass parent_class;
 225 };
 226
 227 typedef enum {
 228         EV_PAGE_DATA_INCLUDE_NONE   = 0,
 229         EV_PAGE_DATA_INCLUDE_LINKS  = 1 << 0,
 230         EV_PAGE_DATA_INCLUDE_TEXT   = 1 << 1,
 231         EV_PAGE_DATA_INCLUDE_IMAGES = 1 << 2,
 232         EV_PAGE_DATA_INCLUDE_FORMS  = 1 << 3,
 233         EV_PAGE_DATA_INCLUDE_ANNOTS = 1 << 4,
 234         EV_PAGE_DATA_INCLUDE_ALL    = (1 << 5) - 1
 235 } EvJobPageDataFlags;
 236
 237 struct _EvJobPageData
 238 {
 239         EvJob parent;
 240
 241         gint page;
 242         EvJobPageDataFlags flags;
 243
 244         GList *link_mapping;
 245         GList *image_mapping;
 246         GList *form_field_mapping;
 247         GList *annot_mapping;
 248         GdkRegion *text_mapping;
 249 };
 250
 251 struct _EvJobPageDataClass
 252 {
 253         EvJobClass parent_class;
 254 };
 255
 256 struct _EvJobThumbnail
 257 {
 258         EvJob parent;
 259
 260         gint page;
 261         gint rotation;
 262         gdouble scale;
 263
 264         GdkPixbuf *thumbnail;
 265 };
 266
 267 struct _EvJobThumbnailClass
 268 {
 269         EvJobClass parent_class;
 270 };
 271
 272 struct _EvJobFonts
 273 {
 274         EvJob parent;
 275         gboolean scan_completed;
 276 };
 277
 278 struct _EvJobFontsClass
 279 {
 280         EvJobClass parent_class;
 281
 282         /* Signals */
 283         void (* updated)  (EvJobFonts *job,
 284                            gdouble     progress);
 285 };
 286
 287 struct _EvJobLoad
 288 {
 289         EvJob parent;
 290
 291         gchar *uri;
 292         gchar *password;
 293 };
 294
 295 struct _EvJobLoadClass
 296 {
 297         EvJobClass parent_class;
 298 };
 299
 300 struct _EvJobSave
 301 {
 302         EvJob parent;
 303
 304         gchar *uri;
 305         gchar *document_uri;
 306 };
 307
 308 struct _EvJobSaveClass
 309 {
 310         EvJobClass parent_class;
 311 };
 312
 313 struct _EvJobFind
 314 {
 315         EvJob parent;
 316
 317         gint start_page;
 318         gint current_page;
 319         gint n_pages;
 320         GList **pages;
 321         gchar *text;
 322         gboolean case_sensitive;
 323         gboolean has_results;
 324 };
 325
 326 struct _EvJobFindClass
 327 {
 328         EvJobClass parent_class;
 329
 330         /* Signals */
 331         void (* updated)  (EvJobFind *job,
 332                            gint       page);
 333 };
 334
 335 struct _EvJobLayers
 336 {
 337         EvJob parent;
 338
 339         GtkTreeModel *model;
 340 };
 341
 342 struct _EvJobLayersClass
 343 {
 344         EvJobClass parent_class;
 345 };
 346
 347 struct _EvJobExport
 348 {
 349         EvJob parent;
 350
 351         gint page;
 352         EvRenderContext *rc;
 353 };
 354
 355 struct _EvJobExportClass
 356 {
 357         EvJobClass parent_class;
 358 };
 359
 360 struct _EvJobPrint
 361 {
 362         EvJob parent;
 363
 364         gint page;
 365         cairo_t *cr;
 366 };
 367
 368 struct _EvJobPrintClass
 369 {
 370         EvJobClass parent_class;
 371 };
 372
 373 /* Base job class */
 374 GType           ev_job_get_type           (void) G_GNUC_CONST;
 375 gboolean        ev_job_run                (EvJob          *job);
 376 void            ev_job_cancel             (EvJob          *job);
 377 void            ev_job_failed             (EvJob          *job,
 378                                            GQuark          domain,
 379                                            gint            code,
 380                                            const gchar    *format,
 381                                            ...);
 382 void            ev_job_failed_from_error  (EvJob          *job,
 383                                            GError         *error);
 384 void            ev_job_succeeded          (EvJob          *job);
 385 gboolean        ev_job_is_finished        (EvJob          *job);
 386 gboolean        ev_job_is_failed          (EvJob          *job);
 387 EvJobRunMode    ev_job_get_run_mode       (EvJob          *job);
 388 void            ev_job_set_run_mode       (EvJob          *job,
 389                                            EvJobRunMode    run_mode);
 390
 391 /* EvJobLinks */
 392 GType           ev_job_links_get_type     (void) G_GNUC_CONST;
 393 EvJob          *ev_job_links_new          (EvDocument     *document);
 394
 395 /* EvJobAttachments */
 396 GType           ev_job_attachments_get_type (void) G_GNUC_CONST;
 397 EvJob          *ev_job_attachments_new      (EvDocument     *document);
 398
 399 /* EvJobRender */
 400 GType           ev_job_render_get_type    (void) G_GNUC_CONST;
 401 EvJob          *ev_job_render_new         (EvDocument      *document,
 402                                            gint             page,
 403                                            gint             rotation,
 404                                            gdouble          scale,
 405                                            gint             width,
 406                                            gint             height);
 407 void     ev_job_render_set_selection_info (EvJobRender     *job,
 408                                            EvRectangle     *selection_points,
 409                                            EvSelectionStyle selection_style,
 410                                            GdkColor        *text,
 411                                            GdkColor        *base);
 412 /* EvJobPageData */
 413 GType           ev_job_page_data_get_type (void) G_GNUC_CONST;
 414 EvJob          *ev_job_page_data_new      (EvDocument      *document,
 415                                            gint             page,
 416                                            EvJobPageDataFlags flags);
 417
 418 /* EvJobThumbnail */
 419 GType           ev_job_thumbnail_get_type (void) G_GNUC_CONST;
 420 EvJob          *ev_job_thumbnail_new      (EvDocument      *document,
 421                                            gint             page,
 422                                            gint             rotation,
 423                                            gdouble          scale);
 424 /* EvJobFonts */
 425 GType           ev_job_fonts_get_type     (void) G_GNUC_CONST;
 426 EvJob          *ev_job_fonts_new          (EvDocument      *document);
 427
 428 /* EvJobLoad */
 429 GType           ev_job_load_get_type      (void) G_GNUC_CONST;
 430 EvJob          *ev_job_load_new           (const gchar     *uri);
 431 void            ev_job_load_set_uri       (EvJobLoad       *load,
 432                                            const gchar     *uri);
 433 void            ev_job_load_set_password  (EvJobLoad       *job,
 434                                            const gchar     *password);
 435
 436 /* EvJobSave */
 437 GType           ev_job_save_get_type      (void) G_GNUC_CONST;
 438 EvJob          *ev_job_save_new           (EvDocument      *document,
 439                                            const gchar     *uri,
 440                                            const gchar     *document_uri);
 441 /* EvJobFind */
 442 GType           ev_job_find_get_type      (void) G_GNUC_CONST;
 443 EvJob          *ev_job_find_new           (EvDocument      *document,
 444                                            gint             start_page,
 445                                            gint             n_pages,
 446                                            const gchar     *text,
 447                                            gboolean         case_sensitive);
 448 gint            ev_job_find_get_n_results (EvJobFind       *job,
 449                                            gint             pages);
 450 gdouble         ev_job_find_get_progress  (EvJobFind       *job);
 451 gboolean        ev_job_find_has_results   (EvJobFind       *job);
 452 GList         **ev_job_find_get_results   (EvJobFind       *job);
 453
 454 /* EvJobLayers */
 455 GType           ev_job_layers_get_type    (void) G_GNUC_CONST;
 456 EvJob          *ev_job_layers_new         (EvDocument     *document);
 457
 458 /* EvJobExport */
 459 GType           ev_job_export_get_type    (void) G_GNUC_CONST;
 460 EvJob          *ev_job_export_new         (EvDocument     *document);
 461 void            ev_job_export_set_page    (EvJobExport    *job,
 462                                            gint            page);
 463 /* EvJobPrint */
 464 GType           ev_job_print_get_type    (void) G_GNUC_CONST;
 465 EvJob          *ev_job_print_new         (EvDocument     *document);
 466 void            ev_job_print_set_page    (EvJobPrint     *job,
 467                                           gint            page);
 468 void            ev_job_print_set_cairo   (EvJobPrint     *job,
 469                                           cairo_t        *cr);
 470
 471 G_END_DECLS
 472
 473 #endif /* __EV_JOBS_H__ */