116 lines
3.6 KiB
C++
116 lines
3.6 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_apsettings.h"
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#include <algorithm>
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#include <utility>
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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_stream.h"
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#include "core/fpdfdoc/cpdf_formcontrol.h"
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CPDF_ApSettings::CPDF_ApSettings(RetainPtr<CPDF_Dictionary> pDict)
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: m_pDict(std::move(pDict)) {}
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CPDF_ApSettings::CPDF_ApSettings(const CPDF_ApSettings& that) = default;
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CPDF_ApSettings::~CPDF_ApSettings() = default;
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bool CPDF_ApSettings::HasMKEntry(const ByteString& csEntry) const {
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return m_pDict && m_pDict->KeyExist(csEntry);
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}
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int CPDF_ApSettings::GetRotation() const {
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return m_pDict ? m_pDict->GetIntegerFor("R") : 0;
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}
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CFX_Color::TypeAndARGB CPDF_ApSettings::GetColorARGB(
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const ByteString& csEntry) const {
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if (!m_pDict)
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return {CFX_Color::Type::kTransparent, 0};
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RetainPtr<const CPDF_Array> pEntry = m_pDict->GetArrayFor(csEntry);
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if (!pEntry)
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return {CFX_Color::Type::kTransparent, 0};
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const size_t dwCount = pEntry->size();
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if (dwCount == 1) {
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const float g = pEntry->GetFloatAt(0) * 255;
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return {CFX_Color::Type::kGray, ArgbEncode(255, (int)g, (int)g, (int)g)};
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}
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if (dwCount == 3) {
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float r = pEntry->GetFloatAt(0) * 255;
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float g = pEntry->GetFloatAt(1) * 255;
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float b = pEntry->GetFloatAt(2) * 255;
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return {CFX_Color::Type::kRGB, ArgbEncode(255, (int)r, (int)g, (int)b)};
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}
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if (dwCount == 4) {
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float c = pEntry->GetFloatAt(0);
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float m = pEntry->GetFloatAt(1);
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float y = pEntry->GetFloatAt(2);
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float k = pEntry->GetFloatAt(3);
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float r = (1.0f - std::min(1.0f, c + k)) * 255;
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float g = (1.0f - std::min(1.0f, m + k)) * 255;
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float b = (1.0f - std::min(1.0f, y + k)) * 255;
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return {CFX_Color::Type::kCMYK, ArgbEncode(255, (int)r, (int)g, (int)b)};
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}
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return {CFX_Color::Type::kTransparent, 0};
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}
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float CPDF_ApSettings::GetOriginalColorComponent(
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int index,
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const ByteString& csEntry) const {
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if (!m_pDict)
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return 0;
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RetainPtr<const CPDF_Array> pEntry = m_pDict->GetArrayFor(csEntry);
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return pEntry ? pEntry->GetFloatAt(index) : 0;
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}
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CFX_Color CPDF_ApSettings::GetOriginalColor(const ByteString& csEntry) const {
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if (!m_pDict)
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return CFX_Color();
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RetainPtr<const CPDF_Array> pEntry = m_pDict->GetArrayFor(csEntry);
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if (!pEntry)
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return CFX_Color();
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size_t dwCount = pEntry->size();
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if (dwCount == 1) {
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return CFX_Color(CFX_Color::Type::kGray, pEntry->GetFloatAt(0));
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}
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if (dwCount == 3) {
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return CFX_Color(CFX_Color::Type::kRGB, pEntry->GetFloatAt(0),
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pEntry->GetFloatAt(1), pEntry->GetFloatAt(2));
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}
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if (dwCount == 4) {
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return CFX_Color(CFX_Color::Type::kCMYK, pEntry->GetFloatAt(0),
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pEntry->GetFloatAt(1), pEntry->GetFloatAt(2),
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pEntry->GetFloatAt(3));
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}
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return CFX_Color();
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}
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WideString CPDF_ApSettings::GetCaption(const ByteString& csEntry) const {
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return m_pDict ? m_pDict->GetUnicodeTextFor(csEntry) : WideString();
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}
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RetainPtr<CPDF_Stream> CPDF_ApSettings::GetIcon(
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const ByteString& csEntry) const {
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return m_pDict ? m_pDict->GetMutableStreamFor(csEntry) : nullptr;
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}
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CPDF_IconFit CPDF_ApSettings::GetIconFit() const {
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return CPDF_IconFit(m_pDict ? m_pDict->GetDictFor("IF") : nullptr);
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}
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int CPDF_ApSettings::GetTextPosition() const {
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return m_pDict ? m_pDict->GetIntegerFor("TP", TEXTPOS_CAPTION)
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: TEXTPOS_CAPTION;
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}
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