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 #include "core/fpdfdoc/cpdf_viewerpreferences.h" 8 9 #include "core/fpdfapi/parser/cpdf_document.h" 10 #include "core/fpdfapi/parser/cpdf_name.h" 11 12 CPDF_ViewerPreferences::CPDF_ViewerPreferences(CPDF_Document* pDoc) 13 : m_pDoc(pDoc) {} 14 15 CPDF_ViewerPreferences::~CPDF_ViewerPreferences() {} 16 17 bool CPDF_ViewerPreferences::IsDirectionR2L() const { 18 CPDF_Dictionary* pDict = GetViewerPreferences(); 19 return pDict ? pDict->GetStringFor("Direction") == "R2L" : false; 20 } 21 22 bool CPDF_ViewerPreferences::PrintScaling() const { 23 CPDF_Dictionary* pDict = GetViewerPreferences(); 24 return pDict ? pDict->GetStringFor("PrintScaling") != "None" : true; 25 } 26 27 int32_t CPDF_ViewerPreferences::NumCopies() const { 28 CPDF_Dictionary* pDict = GetViewerPreferences(); 29 return pDict ? pDict->GetIntegerFor("NumCopies") : 1; 30 } 31 32 CPDF_Array* CPDF_ViewerPreferences::PrintPageRange() const { 33 CPDF_Dictionary* pDict = GetViewerPreferences(); 34 return pDict ? pDict->GetArrayFor("PrintPageRange") : nullptr; 35 } 36 37 ByteString CPDF_ViewerPreferences::Duplex() const { 38 CPDF_Dictionary* pDict = GetViewerPreferences(); 39 return pDict ? pDict->GetStringFor("Duplex") : ByteString("None"); 40 } 41 42 bool CPDF_ViewerPreferences::GenericName(const ByteString& bsKey, 43 ByteString* bsVal) const { 44 ASSERT(bsVal); 45 CPDF_Dictionary* pDict = GetViewerPreferences(); 46 if (!pDict) 47 return false; 48 49 const CPDF_Name* pName = ToName(pDict->GetObjectFor(bsKey)); 50 if (!pName) 51 return false; 52 53 *bsVal = pName->GetString(); 54 return true; 55 } 56 57 CPDF_Dictionary* CPDF_ViewerPreferences::GetViewerPreferences() const { 58 const CPDF_Dictionary* pDict = m_pDoc->GetRoot(); 59 return pDict ? pDict->GetDictFor("ViewerPreferences") : nullptr; 60 } 61
