1/*
2 * Copyright (C) 2016 The Android Open Source Project
3 * Copyright (C) 2016 Mopria Alliance, Inc.
4 *
5 * Licensed under the Apache License, Version 2.0 (the "License");
6 * you may not use this file except in compliance with the License.
7 * You may obtain a copy of the License at
8 *
9 *      http://www.apache.org/licenses/LICENSE-2.0
10 *
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
16 */
17
18package com.android.bips.render;
19
20import com.android.bips.jni.SizeD;
21
22/**
23 * Defines a simple PDF rendering service to protect the main process from
24 * crashes or security issues caused by unexpected PDF data.
25 */
26interface IPdfRender {
27
28    /**
29     * Open a new document, returning the page count or 0 on error
30     */
31    int openDocument(in ParcelFileDescriptor file);
32
33    /**
34     * Return open document's page size in fractional points (1/72") or null on error.
35     */
36    SizeD getPageSize(int page);
37
38    /**
39     * Render a page from the open document as a bitmap.
40     *
41     * @param destFile File to receive a PNG compressed bitmap corresponding to the specified
42     *                 portion of the page
43     * @param y y-offset from the page in pixels at the specified zoom factor
44     * @param width full-page width of bitmap to render
45     * @param height height of strip to render
46     * @return output receiver for bitmap output
47     */
48    ParcelFileDescriptor renderPageStripe(int page, int y, int width, int height,
49        double zoomFactor);
50
51    /**
52     * Release all internal resources related to the open document
53     */
54    oneway void closeDocument();
55}
56