1 // Copyright 2016 PDFium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4 
5 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
6 
7 #ifndef CORE_FPDFDOC_CPDF_VIEWERPREFERENCES_H_
8 #define CORE_FPDFDOC_CPDF_VIEWERPREFERENCES_H_
9 
10 #include "core/fxcrt/fx_string.h"
11 #include "core/fxcrt/fx_system.h"
12 #include "core/fxcrt/unowned_ptr.h"
13 #include "third_party/base/optional.h"
14 
15 class CPDF_Array;
16 class CPDF_Dictionary;
17 class CPDF_Document;
18 
19 class CPDF_ViewerPreferences {
20  public:
21   explicit CPDF_ViewerPreferences(const CPDF_Document* pDoc);
22   ~CPDF_ViewerPreferences();
23 
24   bool IsDirectionR2L() const;
25   bool PrintScaling() const;
26   int32_t NumCopies() const;
27   CPDF_Array* PrintPageRange() const;
28   ByteString Duplex() const;
29 
30   // Gets the entry for |bsKey|.
31   Optional<ByteString> GenericName(const ByteString& bsKey) const;
32 
33  private:
34   CPDF_Dictionary* GetViewerPreferences() const;
35 
36   UnownedPtr<const CPDF_Document> const m_pDoc;
37 };
38 
39 #endif  // CORE_FPDFDOC_CPDF_VIEWERPREFERENCES_H_
40