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/fpdfapi/page/cpdf_colorstate.h" 8 9 #include "core/fpdfapi/page/cpdf_pattern.h" 10 #include "core/fpdfapi/page/cpdf_tilingpattern.h" 11 #include "core/fxge/fx_dib.h" 12 13 CPDF_ColorState::CPDF_ColorState() {} 14 15 CPDF_ColorState::CPDF_ColorState(const CPDF_ColorState& that) 16 : m_Ref(that.m_Ref) {} 17 18 CPDF_ColorState::~CPDF_ColorState() {} 19 20 void CPDF_ColorState::Emplace() { 21 m_Ref.Emplace(); 22 } 23 24 void CPDF_ColorState::SetDefault() { 25 m_Ref.GetPrivateCopy()->SetDefault(); 26 } 27 28 uint32_t CPDF_ColorState::GetFillRGB() const { 29 return m_Ref.GetObject()->m_FillRGB; 30 } 31 32 void CPDF_ColorState::SetFillRGB(uint32_t rgb) { 33 m_Ref.GetPrivateCopy()->m_FillRGB = rgb; 34 } 35 36 uint32_t CPDF_ColorState::GetStrokeRGB() const { 37 return m_Ref.GetObject()->m_StrokeRGB; 38 } 39 40 void CPDF_ColorState::SetStrokeRGB(uint32_t rgb) { 41 m_Ref.GetPrivateCopy()->m_StrokeRGB = rgb; 42 } 43 44 const CPDF_Color* CPDF_ColorState::GetFillColor() const { 45 const ColorData* pData = m_Ref.GetObject(); 46 return pData ? &pData->m_FillColor : nullptr; 47 } 48 49 CPDF_Color* CPDF_ColorState::GetMutableFillColor() { 50 return &m_Ref.GetPrivateCopy()->m_FillColor; 51 } 52 53 bool CPDF_ColorState::HasFillColor() const { 54 const CPDF_Color* pColor = GetFillColor(); 55 return pColor && !pColor->IsNull(); 56 } 57 58 const CPDF_Color* CPDF_ColorState::GetStrokeColor() const { 59 const ColorData* pData = m_Ref.GetObject(); 60 return pData ? &pData->m_StrokeColor : nullptr; 61 } 62 63 CPDF_Color* CPDF_ColorState::GetMutableStrokeColor() { 64 return &m_Ref.GetPrivateCopy()->m_StrokeColor; 65 } 66 67 bool CPDF_ColorState::HasStrokeColor() const { 68 const CPDF_Color* pColor = GetStrokeColor(); 69 return pColor && !pColor->IsNull(); 70 } 71 72 void CPDF_ColorState::SetFillColor(CPDF_ColorSpace* pCS, 73 float* pValue, 74 uint32_t nValues) { 75 ColorData* pData = m_Ref.GetPrivateCopy(); 76 SetColor(pData->m_FillColor, pData->m_FillRGB, pCS, pValue, nValues); 77 } 78 79 void CPDF_ColorState::SetStrokeColor(CPDF_ColorSpace* pCS, 80 float* pValue, 81 uint32_t nValues) { 82 ColorData* pData = m_Ref.GetPrivateCopy(); 83 SetColor(pData->m_StrokeColor, pData->m_StrokeRGB, pCS, pValue, nValues); 84 } 85 86 void CPDF_ColorState::SetFillPattern(CPDF_Pattern* pPattern, 87 float* pValue, 88 uint32_t nValues) { 89 ColorData* pData = m_Ref.GetPrivateCopy(); 90 pData->m_FillColor.SetValue(pPattern, pValue, nValues); 91 int R; 92 int G; 93 int B; 94 bool ret = pData->m_FillColor.GetRGB(&R, &G, &B); 95 if (CPDF_TilingPattern* pTilingPattern = pPattern->AsTilingPattern()) { 96 if (!ret && pTilingPattern->colored()) { 97 pData->m_FillRGB = 0x00BFBFBF; 98 return; 99 } 100 } 101 pData->m_FillRGB = ret ? FXSYS_RGB(R, G, B) : 0xFFFFFFFF; 102 } 103 104 void CPDF_ColorState::SetStrokePattern(CPDF_Pattern* pPattern, 105 float* pValue, 106 uint32_t nValues) { 107 ColorData* pData = m_Ref.GetPrivateCopy(); 108 pData->m_StrokeColor.SetValue(pPattern, pValue, nValues); 109 int R; 110 int G; 111 int B; 112 bool ret = pData->m_StrokeColor.GetRGB(&R, &G, &B); 113 if (CPDF_TilingPattern* pTilingPattern = pPattern->AsTilingPattern()) { 114 if (!ret && pTilingPattern->colored()) { 115 pData->m_StrokeRGB = 0x00BFBFBF; 116 return; 117 } 118 } 119 pData->m_StrokeRGB = 120 pData->m_StrokeColor.GetRGB(&R, &G, &B) ? FXSYS_RGB(R, G, B) : 0xFFFFFFFF; 121 } 122 123 void CPDF_ColorState::SetColor(CPDF_Color& color, 124 uint32_t& rgb, 125 CPDF_ColorSpace* pCS, 126 float* pValue, 127 uint32_t nValues) { 128 if (pCS) 129 color.SetColorSpace(pCS); 130 else if (color.IsNull()) 131 color.SetColorSpace(CPDF_ColorSpace::GetStockCS(PDFCS_DEVICEGRAY)); 132 133 if (color.GetColorSpace()->CountComponents() > nValues) 134 return; 135 136 color.SetValue(pValue); 137 int R; 138 int G; 139 int B; 140 rgb = color.GetRGB(&R, &G, &B) ? FXSYS_RGB(R, G, B) : 0xFFFFFFFF; 141 } 142 143 CPDF_ColorState::ColorData::ColorData() : m_FillRGB(0), m_StrokeRGB(0) {} 144 145 CPDF_ColorState::ColorData::ColorData(const ColorData& src) 146 : m_FillRGB(src.m_FillRGB), m_StrokeRGB(src.m_StrokeRGB) { 147 m_FillColor.Copy(&src.m_FillColor); 148 m_StrokeColor.Copy(&src.m_StrokeColor); 149 } 150 151 CPDF_ColorState::ColorData::~ColorData() {} 152 153 void CPDF_ColorState::ColorData::SetDefault() { 154 m_FillRGB = 0; 155 m_StrokeRGB = 0; 156 m_FillColor.SetColorSpace(CPDF_ColorSpace::GetStockCS(PDFCS_DEVICEGRAY)); 157 m_StrokeColor.SetColorSpace(CPDF_ColorSpace::GetStockCS(PDFCS_DEVICEGRAY)); 158 } 159