1/*
2 * Copyright (C) 2013 Apple Inc. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 * 1. Redistributions of source code must retain the above copyright
8 *    notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 *    notice, this list of conditions and the following disclaimer in the
11 *    documentation and/or other materials provided with the distribution.
12 *
13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE INC. OR
17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26#import "config.h"
27#import "PDFDocumentImage.h"
28
29#if USE(PDFKIT_FOR_PDFDOCUMENTIMAGE)
30
31#import "LocalCurrentGraphicsContext.h"
32#import "SharedBuffer.h"
33#import "SoftLinking.h"
34#import <Quartz/Quartz.h>
35#import <objc/objc-class.h>
36#import <wtf/RetainPtr.h>
37
38#ifdef __has_include
39#if __has_include(<ApplicationServices/ApplicationServicesPriv.h>)
40#import <ApplicationServices/ApplicationServicesPriv.h>
41#endif
42#endif
43
44SOFT_LINK_FRAMEWORK_IN_UMBRELLA(Quartz, PDFKit)
45SOFT_LINK_CLASS(PDFKit, PDFDocument)
46
47extern "C" {
48bool CGContextGetAllowsFontSmoothing(CGContextRef context);
49bool CGContextGetAllowsFontSubpixelQuantization(CGContextRef context);
50}
51
52namespace WebCore {
53
54void PDFDocumentImage::createPDFDocument()
55{
56    m_document = adoptNS([[getPDFDocumentClass() alloc] initWithData:data()->createNSData().get()]);
57}
58
59void PDFDocumentImage::computeBoundsForCurrentPage()
60{
61    PDFPage *pdfPage = [m_document pageAtIndex:0];
62
63    m_cropBox = [pdfPage boundsForBox:kPDFDisplayBoxCropBox];
64    m_rotationDegrees = [pdfPage rotation];
65}
66
67unsigned PDFDocumentImage::pageCount() const
68{
69    return [m_document pageCount];
70}
71
72void PDFDocumentImage::drawPDFPage(GraphicsContext* context)
73{
74    LocalCurrentGraphicsContext localCurrentContext(context);
75
76    // These states can be mutated by PDFKit but are not saved
77    // on the context's state stack. (<rdar://problem/14951759>)
78    bool allowsSmoothing = CGContextGetAllowsFontSmoothing(context->platformContext());
79    bool allowsSubpixelQuantization = CGContextGetAllowsFontSubpixelQuantization(context->platformContext());
80
81    [[m_document pageAtIndex:0] drawWithBox:kPDFDisplayBoxCropBox];
82
83    CGContextSetAllowsFontSmoothing(context->platformContext(), allowsSmoothing);
84    CGContextSetAllowsFontSubpixelQuantization(context->platformContext(), allowsSubpixelQuantization);
85}
86
87}
88
89#endif // USE(PDFKIT_FOR_PDFDOCUMENTIMAGE)
90