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 FX_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 FX_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 FX_FLOAT* pValue, 88 uint32_t nValues) { 89 ColorData* pData = m_Ref.GetPrivateCopy(); 90 pData->m_FillColor.SetValue(pPattern, pValue, nValues); 91 int R, G, B; 92 bool ret = pData->m_FillColor.GetRGB(R, G, B); 93 if (CPDF_TilingPattern* pTilingPattern = pPattern->AsTilingPattern()) { 94 if (!ret && pTilingPattern->colored()) { 95 pData->m_FillRGB = 0x00BFBFBF; 96 return; 97 } 98 } 99 pData->m_FillRGB = ret ? FXSYS_RGB(R, G, B) : (uint32_t)-1; 100 } 101 102 void CPDF_ColorState::SetStrokePattern(CPDF_Pattern* pPattern, 103 FX_FLOAT* pValue, 104 uint32_t nValues) { 105 ColorData* pData = m_Ref.GetPrivateCopy(); 106 pData->m_StrokeColor.SetValue(pPattern, pValue, nValues); 107 int R, G, B; 108 bool ret = pData->m_StrokeColor.GetRGB(R, G, B); 109 if (CPDF_TilingPattern* pTilingPattern = pPattern->AsTilingPattern()) { 110 if (!ret && pTilingPattern->colored()) { 111 pData->m_StrokeRGB = 0x00BFBFBF; 112 return; 113 } 114 } 115 pData->m_StrokeRGB = 116 pData->m_StrokeColor.GetRGB(R, G, B) ? FXSYS_RGB(R, G, B) : (uint32_t)-1; 117 } 118 119 void CPDF_ColorState::SetColor(CPDF_Color& color, 120 uint32_t& rgb, 121 CPDF_ColorSpace* pCS, 122 FX_FLOAT* pValue, 123 uint32_t nValues) { 124 if (pCS) 125 color.SetColorSpace(pCS); 126 else if (color.IsNull()) 127 color.SetColorSpace(CPDF_ColorSpace::GetStockCS(PDFCS_DEVICEGRAY)); 128 129 if (color.GetColorSpace()->CountComponents() > nValues) 130 return; 131 132 color.SetValue(pValue); 133 int R; 134 int G; 135 int B; 136 rgb = color.GetRGB(R, G, B) ? FXSYS_RGB(R, G, B) : (uint32_t)-1; 137 } 138 139 CPDF_ColorState::ColorData::ColorData() : m_FillRGB(0), m_StrokeRGB(0) {} 140 141 CPDF_ColorState::ColorData::ColorData(const ColorData& src) 142 : m_FillRGB(src.m_FillRGB), m_StrokeRGB(src.m_StrokeRGB) { 143 m_FillColor.Copy(&src.m_FillColor); 144 m_StrokeColor.Copy(&src.m_StrokeColor); 145 } 146 147 CPDF_ColorState::ColorData::~ColorData() {} 148 149 void CPDF_ColorState::ColorData::SetDefault() { 150 m_FillRGB = 0; 151 m_StrokeRGB = 0; 152 m_FillColor.SetColorSpace(CPDF_ColorSpace::GetStockCS(PDFCS_DEVICEGRAY)); 153 m_StrokeColor.SetColorSpace(CPDF_ColorSpace::GetStockCS(PDFCS_DEVICEGRAY)); 154 } 155