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_apsettings.h" 8 9 #include <algorithm> 10 11 #include "core/fpdfapi/parser/cpdf_array.h" 12 #include "core/fpdfapi/parser/cpdf_dictionary.h" 13 #include "core/fpdfdoc/cpdf_formcontrol.h" 14 15 CPDF_ApSettings::CPDF_ApSettings(CPDF_Dictionary* pDict) : m_pDict(pDict) {} 16 17 bool CPDF_ApSettings::HasMKEntry(const CFX_ByteString& csEntry) const { 18 return m_pDict && m_pDict->KeyExist(csEntry); 19 } 20 21 int CPDF_ApSettings::GetRotation() const { 22 return m_pDict ? m_pDict->GetIntegerFor("R") : 0; 23 } 24 25 FX_ARGB CPDF_ApSettings::GetColor(int& iColorType, 26 const CFX_ByteString& csEntry) const { 27 iColorType = COLORTYPE_TRANSPARENT; 28 if (!m_pDict) 29 return 0; 30 31 CPDF_Array* pEntry = m_pDict->GetArrayFor(csEntry); 32 if (!pEntry) 33 return 0; 34 35 FX_ARGB color = 0; 36 size_t dwCount = pEntry->GetCount(); 37 if (dwCount == 1) { 38 iColorType = COLORTYPE_GRAY; 39 FX_FLOAT g = pEntry->GetNumberAt(0) * 255; 40 return ArgbEncode(255, (int)g, (int)g, (int)g); 41 } 42 if (dwCount == 3) { 43 iColorType = COLORTYPE_RGB; 44 FX_FLOAT r = pEntry->GetNumberAt(0) * 255; 45 FX_FLOAT g = pEntry->GetNumberAt(1) * 255; 46 FX_FLOAT b = pEntry->GetNumberAt(2) * 255; 47 return ArgbEncode(255, (int)r, (int)g, (int)b); 48 } 49 if (dwCount == 4) { 50 iColorType = COLORTYPE_CMYK; 51 FX_FLOAT c = pEntry->GetNumberAt(0); 52 FX_FLOAT m = pEntry->GetNumberAt(1); 53 FX_FLOAT y = pEntry->GetNumberAt(2); 54 FX_FLOAT k = pEntry->GetNumberAt(3); 55 FX_FLOAT r = 1.0f - std::min(1.0f, c + k); 56 FX_FLOAT g = 1.0f - std::min(1.0f, m + k); 57 FX_FLOAT b = 1.0f - std::min(1.0f, y + k); 58 return ArgbEncode(255, (int)(r * 255), (int)(g * 255), (int)(b * 255)); 59 } 60 return color; 61 } 62 63 FX_FLOAT CPDF_ApSettings::GetOriginalColor( 64 int index, 65 const CFX_ByteString& csEntry) const { 66 if (!m_pDict) 67 return 0; 68 69 CPDF_Array* pEntry = m_pDict->GetArrayFor(csEntry); 70 return pEntry ? pEntry->GetNumberAt(index) : 0; 71 } 72 73 void CPDF_ApSettings::GetOriginalColor(int& iColorType, 74 FX_FLOAT fc[4], 75 const CFX_ByteString& csEntry) const { 76 iColorType = COLORTYPE_TRANSPARENT; 77 for (int i = 0; i < 4; i++) 78 fc[i] = 0; 79 80 if (!m_pDict) 81 return; 82 83 CPDF_Array* pEntry = m_pDict->GetArrayFor(csEntry); 84 if (!pEntry) 85 return; 86 87 size_t dwCount = pEntry->GetCount(); 88 if (dwCount == 1) { 89 iColorType = COLORTYPE_GRAY; 90 fc[0] = pEntry->GetNumberAt(0); 91 } else if (dwCount == 3) { 92 iColorType = COLORTYPE_RGB; 93 fc[0] = pEntry->GetNumberAt(0); 94 fc[1] = pEntry->GetNumberAt(1); 95 fc[2] = pEntry->GetNumberAt(2); 96 } else if (dwCount == 4) { 97 iColorType = COLORTYPE_CMYK; 98 fc[0] = pEntry->GetNumberAt(0); 99 fc[1] = pEntry->GetNumberAt(1); 100 fc[2] = pEntry->GetNumberAt(2); 101 fc[3] = pEntry->GetNumberAt(3); 102 } 103 } 104 105 CFX_WideString CPDF_ApSettings::GetCaption( 106 const CFX_ByteString& csEntry) const { 107 return m_pDict ? m_pDict->GetUnicodeTextFor(csEntry) : CFX_WideString(); 108 } 109 110 CPDF_Stream* CPDF_ApSettings::GetIcon(const CFX_ByteString& csEntry) const { 111 return m_pDict ? m_pDict->GetStreamFor(csEntry) : nullptr; 112 } 113 114 CPDF_IconFit CPDF_ApSettings::GetIconFit() const { 115 return CPDF_IconFit(m_pDict ? m_pDict->GetDictFor("IF") : nullptr); 116 } 117 118 int CPDF_ApSettings::GetTextPosition() const { 119 return m_pDict ? m_pDict->GetIntegerFor("TP", TEXTPOS_CAPTION) 120 : TEXTPOS_CAPTION; 121 } 122