mobileprint/preview_engine/include/preview_engine.h

   1 /*
   2 *  Mobileprint
   3 *
   4 * Copyright 2013  Samsung Electronics Co., Ltd
   5
   6 * Licensed under the Flora License, Version 1.1 (the "License");
   7 * you may not use this file except in compliance with the License.
   8 * You may obtain a copy of the License at
   9
  10 * http://floralicense.org/license/
  11
  12 * Unless required by applicable law or agreed to in writing, software
  13 * distributed under the License is distributed on an "AS IS" BASIS,
  14 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  15 * See the License for the specific language governing permissions and
  16 * limitations under the License.
  17 *
  18 */
  19
  20 #ifndef _PREVIEW_ENGINE_H_INCLUDED_
  21 #define _PREVIEW_ENGINE_H_INCLUDED_
  22
  23 struct preview_engine;
  24 struct initial_preview_data;
  25 enum preview_engine_event_status;
  26
  27 #include <Ecore.h>
  28
  29 #include <paper_size.h>
  30 #include <pdfgen.h>
  31
  32 #include "preview_model.h"
  33 #include "preview_task_model.h"
  34
  35
  36 enum preview_engine_state {
  37         PREVIEW_ENGINE_STATE_INITIAL = 0,
  38         PREVIEW_ENGINE_STATE_PROCESSING,
  39         PREVIEW_ENGINE_STATE_ERROR,
  40         PREVIEW_ENGINE_STATE_READY,
  41         PREVIEW_ENGINE_STATE_STOPPING,
  42         PREVIEW_ENGINE_STATE_DELETED
  43 };
  44
  45 enum preview_engine_event_status {
  46         PREVIEW_ENGINE_EVENT_INITIAL_ERROR = -2,
  47         PREVIEW_ENGINE_EVENT_PAGE_ERROR = -1,
  48         PREVIEW_ENGINE_EVENT_PAGE_PROCESSING,
  49         PREVIEW_ENGINE_EVENT_PAGE_READY,
  50         PREVIEW_ENGINE_EVENT_INITIAL_READY,
  51         PREVIEW_ENGINE_EVENT_EMPTY_PAGE_PROCESSING,
  52         PREVIEW_ENGINE_EVENT_EMPTY_PAGE_READY
  53         /* add cancelled state? */
  54 };
  55
  56 struct preview_engine_event {
  57         int page;
  58         enum preview_engine_event_status status;
  59 };
  60
  61 struct initial_preview_data {
  62         struct preview_conf conf;
  63
  64         struct preview_engine *engine; /* not for use in thread */
  65 };
  66
  67 struct preview_engine {
  68         enum preview_engine_state state;
  69         struct preview_task_model task_model;
  70         struct preview_model p_model;
  71
  72         struct initial_preview_data *next_preview_data;
  73
  74         int page_ready_event_type;
  75 };
  76
  77
  78 int init_preview_engine(struct preview_engine *engine);
  79 int process_preview_engine_file(struct preview_engine *engine,
  80                                 char **const fnames, int files_count,
  81                                 const char *ppd,
  82                                 const struct paper_size_pts *paper_size,
  83                                 const struct size_px *max_available_size_px,
  84                                 enum page_orientation orientation, int n_up,
  85                                 const struct page_scale *scale, int is_grayscale);
  86 void preview_engine_send_page_message(struct preview_engine *engine,
  87                                                                           enum preview_engine_event_status status, int page);
  88 int preview_engine_init_done(struct preview_engine *engine,
  89                                                          const struct preview_conf *conf);
  90
  91
  92 #endif /* _PREVIEW_ENGINE_H_INCLUDED_ */
  93