hmz007
36ed224bac
Signed-off-by: hmz007 <hmz007@gmail.com> Change-Id: Ib87fdbe7a0be7dc961af3500fe9ea4589a127f9f
62 lines
2.1 KiB
C++
62 lines
2.1 KiB
C++
// Copyright 2016 The PDFium Authors
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
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#include "core/fpdfdoc/cpdf_viewerpreferences.h"
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#include "core/fpdfapi/parser/cpdf_array.h"
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#include "core/fpdfapi/parser/cpdf_dictionary.h"
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#include "core/fpdfapi/parser/cpdf_document.h"
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#include "core/fpdfapi/parser/cpdf_name.h"
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CPDF_ViewerPreferences::CPDF_ViewerPreferences(const CPDF_Document* pDoc)
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: m_pDoc(pDoc) {}
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CPDF_ViewerPreferences::~CPDF_ViewerPreferences() = default;
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bool CPDF_ViewerPreferences::IsDirectionR2L() const {
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RetainPtr<const CPDF_Dictionary> pDict = GetViewerPreferences();
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return pDict && pDict->GetByteStringFor("Direction") == "R2L";
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}
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bool CPDF_ViewerPreferences::PrintScaling() const {
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RetainPtr<const CPDF_Dictionary> pDict = GetViewerPreferences();
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return !pDict || pDict->GetByteStringFor("PrintScaling") != "None";
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}
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int32_t CPDF_ViewerPreferences::NumCopies() const {
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RetainPtr<const CPDF_Dictionary> pDict = GetViewerPreferences();
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return pDict ? pDict->GetIntegerFor("NumCopies") : 1;
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}
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RetainPtr<const CPDF_Array> CPDF_ViewerPreferences::PrintPageRange() const {
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RetainPtr<const CPDF_Dictionary> pDict = GetViewerPreferences();
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return pDict ? pDict->GetArrayFor("PrintPageRange") : nullptr;
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}
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ByteString CPDF_ViewerPreferences::Duplex() const {
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RetainPtr<const CPDF_Dictionary> pDict = GetViewerPreferences();
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return pDict ? pDict->GetByteStringFor("Duplex") : ByteString("None");
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}
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absl::optional<ByteString> CPDF_ViewerPreferences::GenericName(
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const ByteString& bsKey) const {
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RetainPtr<const CPDF_Dictionary> pDict = GetViewerPreferences();
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if (!pDict)
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return absl::nullopt;
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RetainPtr<const CPDF_Name> pName = ToName(pDict->GetObjectFor(bsKey));
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if (!pName)
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return absl::nullopt;
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return pName->GetString();
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}
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RetainPtr<const CPDF_Dictionary> CPDF_ViewerPreferences::GetViewerPreferences()
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const {
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const CPDF_Dictionary* pDict = m_pDoc->GetRoot();
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return pDict ? pDict->GetDictFor("ViewerPreferences") : nullptr;
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}
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