1 // Copyright 2016 The PDFium Authors
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_apsettings.h"
8
9 #include <algorithm>
10 #include <utility>
11
12 #include "core/fpdfapi/parser/cpdf_array.h"
13 #include "core/fpdfapi/parser/cpdf_dictionary.h"
14 #include "core/fpdfapi/parser/cpdf_stream.h"
15 #include "core/fpdfdoc/cpdf_formcontrol.h"
16
CPDF_ApSettings(RetainPtr<CPDF_Dictionary> pDict)17 CPDF_ApSettings::CPDF_ApSettings(RetainPtr<CPDF_Dictionary> pDict)
18 : m_pDict(std::move(pDict)) {}
19
20 CPDF_ApSettings::CPDF_ApSettings(const CPDF_ApSettings& that) = default;
21
22 CPDF_ApSettings::~CPDF_ApSettings() = default;
23
HasMKEntry(const ByteString & csEntry) const24 bool CPDF_ApSettings::HasMKEntry(const ByteString& csEntry) const {
25 return m_pDict && m_pDict->KeyExist(csEntry);
26 }
27
GetRotation() const28 int CPDF_ApSettings::GetRotation() const {
29 return m_pDict ? m_pDict->GetIntegerFor("R") : 0;
30 }
31
GetColorARGB(const ByteString & csEntry) const32 CFX_Color::TypeAndARGB CPDF_ApSettings::GetColorARGB(
33 const ByteString& csEntry) const {
34 if (!m_pDict)
35 return {CFX_Color::Type::kTransparent, 0};
36
37 RetainPtr<const CPDF_Array> pEntry = m_pDict->GetArrayFor(csEntry);
38 if (!pEntry)
39 return {CFX_Color::Type::kTransparent, 0};
40
41 const size_t dwCount = pEntry->size();
42 if (dwCount == 1) {
43 const float g = pEntry->GetFloatAt(0) * 255;
44 return {CFX_Color::Type::kGray, ArgbEncode(255, (int)g, (int)g, (int)g)};
45 }
46 if (dwCount == 3) {
47 float r = pEntry->GetFloatAt(0) * 255;
48 float g = pEntry->GetFloatAt(1) * 255;
49 float b = pEntry->GetFloatAt(2) * 255;
50 return {CFX_Color::Type::kRGB, ArgbEncode(255, (int)r, (int)g, (int)b)};
51 }
52 if (dwCount == 4) {
53 float c = pEntry->GetFloatAt(0);
54 float m = pEntry->GetFloatAt(1);
55 float y = pEntry->GetFloatAt(2);
56 float k = pEntry->GetFloatAt(3);
57 float r = (1.0f - std::min(1.0f, c + k)) * 255;
58 float g = (1.0f - std::min(1.0f, m + k)) * 255;
59 float b = (1.0f - std::min(1.0f, y + k)) * 255;
60 return {CFX_Color::Type::kCMYK, ArgbEncode(255, (int)r, (int)g, (int)b)};
61 }
62 return {CFX_Color::Type::kTransparent, 0};
63 }
64
GetOriginalColorComponent(int index,const ByteString & csEntry) const65 float CPDF_ApSettings::GetOriginalColorComponent(
66 int index,
67 const ByteString& csEntry) const {
68 if (!m_pDict)
69 return 0;
70
71 RetainPtr<const CPDF_Array> pEntry = m_pDict->GetArrayFor(csEntry);
72 return pEntry ? pEntry->GetFloatAt(index) : 0;
73 }
74
GetOriginalColor(const ByteString & csEntry) const75 CFX_Color CPDF_ApSettings::GetOriginalColor(const ByteString& csEntry) const {
76 if (!m_pDict)
77 return CFX_Color();
78
79 RetainPtr<const CPDF_Array> pEntry = m_pDict->GetArrayFor(csEntry);
80 if (!pEntry)
81 return CFX_Color();
82
83 size_t dwCount = pEntry->size();
84 if (dwCount == 1) {
85 return CFX_Color(CFX_Color::Type::kGray, pEntry->GetFloatAt(0));
86 }
87 if (dwCount == 3) {
88 return CFX_Color(CFX_Color::Type::kRGB, pEntry->GetFloatAt(0),
89 pEntry->GetFloatAt(1), pEntry->GetFloatAt(2));
90 }
91 if (dwCount == 4) {
92 return CFX_Color(CFX_Color::Type::kCMYK, pEntry->GetFloatAt(0),
93 pEntry->GetFloatAt(1), pEntry->GetFloatAt(2),
94 pEntry->GetFloatAt(3));
95 }
96 return CFX_Color();
97 }
98
GetCaption(const ByteString & csEntry) const99 WideString CPDF_ApSettings::GetCaption(const ByteString& csEntry) const {
100 return m_pDict ? m_pDict->GetUnicodeTextFor(csEntry) : WideString();
101 }
102
GetIcon(const ByteString & csEntry) const103 RetainPtr<CPDF_Stream> CPDF_ApSettings::GetIcon(
104 const ByteString& csEntry) const {
105 return m_pDict ? m_pDict->GetMutableStreamFor(csEntry) : nullptr;
106 }
107
GetIconFit() const108 CPDF_IconFit CPDF_ApSettings::GetIconFit() const {
109 return CPDF_IconFit(m_pDict ? m_pDict->GetDictFor("IF") : nullptr);
110 }
111
GetTextPosition() const112 int CPDF_ApSettings::GetTextPosition() const {
113 return m_pDict ? m_pDict->GetIntegerFor("TP", TEXTPOS_CAPTION)
114 : TEXTPOS_CAPTION;
115 }
116