| // Copyright 2016 PDFium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com |
| |
| #include "core/fpdfdoc/cpdf_viewerpreferences.h" |
| |
| #include "core/fpdfapi/parser/cpdf_dictionary.h" |
| #include "core/fpdfapi/parser/cpdf_document.h" |
| #include "core/fpdfapi/parser/cpdf_name.h" |
| |
| CPDF_ViewerPreferences::CPDF_ViewerPreferences(const CPDF_Document* pDoc) |
| : m_pDoc(pDoc) {} |
| |
| CPDF_ViewerPreferences::~CPDF_ViewerPreferences() = default; |
| |
| bool CPDF_ViewerPreferences::IsDirectionR2L() const { |
| const CPDF_Dictionary* pDict = GetViewerPreferences(); |
| return pDict && pDict->GetStringFor("Direction") == "R2L"; |
| } |
| |
| bool CPDF_ViewerPreferences::PrintScaling() const { |
| const CPDF_Dictionary* pDict = GetViewerPreferences(); |
| return !pDict || pDict->GetStringFor("PrintScaling") != "None"; |
| } |
| |
| int32_t CPDF_ViewerPreferences::NumCopies() const { |
| const CPDF_Dictionary* pDict = GetViewerPreferences(); |
| return pDict ? pDict->GetIntegerFor("NumCopies") : 1; |
| } |
| |
| CPDF_Array* CPDF_ViewerPreferences::PrintPageRange() const { |
| CPDF_Dictionary* pDict = GetViewerPreferences(); |
| return pDict ? pDict->GetArrayFor("PrintPageRange") : nullptr; |
| } |
| |
| ByteString CPDF_ViewerPreferences::Duplex() const { |
| const CPDF_Dictionary* pDict = GetViewerPreferences(); |
| return pDict ? pDict->GetStringFor("Duplex") : ByteString("None"); |
| } |
| |
| Optional<ByteString> CPDF_ViewerPreferences::GenericName( |
| const ByteString& bsKey) const { |
| const CPDF_Dictionary* pDict = GetViewerPreferences(); |
| if (!pDict) |
| return pdfium::nullopt; |
| |
| const CPDF_Name* pName = ToName(pDict->GetObjectFor(bsKey)); |
| if (!pName) |
| return pdfium::nullopt; |
| |
| return pName->GetString(); |
| } |
| |
| CPDF_Dictionary* CPDF_ViewerPreferences::GetViewerPreferences() const { |
| CPDF_Dictionary* pDict = m_pDoc->GetRoot(); |
| return pDict ? pDict->GetDictFor("ViewerPreferences") : nullptr; |
| } |