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| 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/fpdf_page/cpdf_allstates.h" | |
| 8 | |
| 9 #include "core/fpdfapi/fpdf_page/pageint.h" | |
| 10 #include "core/fpdfapi/fpdf_parser/cpdf_array.h" | |
| 11 #include "core/fpdfapi/fpdf_parser/cpdf_dictionary.h" | |
| 12 #include "core/fxge/cfx_graphstatedata.h" | |
| 13 | |
| 14 namespace { | |
| 15 | |
| 16 FX_FLOAT ClipFloat(FX_FLOAT f) { | |
| 17 return std::max(0.0f, std::min(1.0f, f)); | |
| 18 } | |
| 19 | |
| 20 } // namespace | |
| 21 | |
| 22 CPDF_AllStates::CPDF_AllStates() { | |
| 23 m_TextX = m_TextY = m_TextLineX = m_TextLineY = 0; | |
| 24 m_TextLeading = 0; | |
| 25 m_TextRise = 0; | |
| 26 m_TextHorzScale = 1.0f; | |
| 27 } | |
| 28 | |
| 29 CPDF_AllStates::~CPDF_AllStates() {} | |
| 30 | |
| 31 void CPDF_AllStates::Copy(const CPDF_AllStates& src) { | |
| 32 CopyStates(src); | |
| 33 m_TextMatrix = src.m_TextMatrix; | |
| 34 m_ParentMatrix = src.m_ParentMatrix; | |
| 35 m_CTM = src.m_CTM; | |
| 36 m_TextX = src.m_TextX; | |
| 37 m_TextY = src.m_TextY; | |
| 38 m_TextLineX = src.m_TextLineX; | |
| 39 m_TextLineY = src.m_TextLineY; | |
| 40 m_TextLeading = src.m_TextLeading; | |
| 41 m_TextRise = src.m_TextRise; | |
| 42 m_TextHorzScale = src.m_TextHorzScale; | |
| 43 } | |
| 44 | |
| 45 void CPDF_AllStates::SetLineDash(CPDF_Array* pArray, | |
| 46 FX_FLOAT phase, | |
| 47 FX_FLOAT scale) { | |
| 48 m_GraphState.SetLineDash(pArray, phase, scale); | |
| 49 } | |
| 50 | |
| 51 void CPDF_AllStates::ProcessExtGS(CPDF_Dictionary* pGS, | |
| 52 CPDF_StreamContentParser* pParser) { | |
| 53 for (const auto& it : *pGS) { | |
| 54 const CFX_ByteString& key_str = it.first; | |
| 55 CPDF_Object* pElement = it.second; | |
| 56 CPDF_Object* pObject = pElement ? pElement->GetDirect() : nullptr; | |
| 57 if (!pObject) | |
| 58 continue; | |
| 59 | |
| 60 uint32_t key = key_str.GetID(); | |
| 61 switch (key) { | |
| 62 case FXBSTR_ID('L', 'W', 0, 0): | |
| 63 m_GraphState.SetLineWidth(pObject->GetNumber()); | |
| 64 break; | |
| 65 case FXBSTR_ID('L', 'C', 0, 0): | |
| 66 m_GraphState.SetLineCap( | |
| 67 static_cast<CFX_GraphStateData::LineCap>(pObject->GetInteger())); | |
| 68 break; | |
| 69 case FXBSTR_ID('L', 'J', 0, 0): | |
| 70 m_GraphState.SetLineJoin( | |
| 71 static_cast<CFX_GraphStateData::LineJoin>(pObject->GetInteger())); | |
| 72 break; | |
| 73 case FXBSTR_ID('M', 'L', 0, 0): | |
| 74 m_GraphState.SetMiterLimit(pObject->GetNumber()); | |
| 75 break; | |
| 76 case FXBSTR_ID('D', 0, 0, 0): { | |
| 77 CPDF_Array* pDash = pObject->AsArray(); | |
| 78 if (!pDash) | |
| 79 break; | |
| 80 | |
| 81 CPDF_Array* pArray = pDash->GetArrayAt(0); | |
| 82 if (!pArray) | |
| 83 break; | |
| 84 | |
| 85 SetLineDash(pArray, pDash->GetNumberAt(1), 1.0f); | |
| 86 break; | |
| 87 } | |
| 88 case FXBSTR_ID('R', 'I', 0, 0): | |
| 89 m_GeneralState.SetRenderIntent(pObject->GetString()); | |
| 90 break; | |
| 91 case FXBSTR_ID('F', 'o', 'n', 't'): { | |
| 92 CPDF_Array* pFont = pObject->AsArray(); | |
| 93 if (!pFont) | |
| 94 break; | |
| 95 | |
| 96 m_TextState.SetFontSize(pFont->GetNumberAt(1)); | |
| 97 m_TextState.SetFont(pParser->FindFont(pFont->GetStringAt(0))); | |
| 98 break; | |
| 99 } | |
| 100 case FXBSTR_ID('T', 'R', 0, 0): | |
| 101 if (pGS->KeyExist("TR2")) { | |
| 102 continue; | |
| 103 } | |
| 104 case FXBSTR_ID('T', 'R', '2', 0): | |
| 105 m_GeneralState.SetTR(pObject && !pObject->IsName() ? pObject : nullptr); | |
| 106 break; | |
| 107 case FXBSTR_ID('B', 'M', 0, 0): { | |
| 108 CPDF_Array* pArray = pObject->AsArray(); | |
| 109 m_GeneralState.SetBlendMode(pArray ? pArray->GetStringAt(0) | |
| 110 : pObject->GetString()); | |
| 111 if (m_GeneralState.GetBlendType() > FXDIB_BLEND_MULTIPLY) | |
| 112 pParser->GetPageObjectHolder()->SetBackgroundAlphaNeeded(TRUE); | |
| 113 break; | |
| 114 } | |
| 115 case FXBSTR_ID('S', 'M', 'a', 's'): | |
| 116 if (ToDictionary(pObject)) { | |
| 117 m_GeneralState.SetSoftMask(pObject); | |
| 118 m_GeneralState.SetSMaskMatrix(pParser->GetCurStates()->m_CTM); | |
| 119 } else { | |
| 120 m_GeneralState.SetSoftMask(nullptr); | |
| 121 } | |
| 122 break; | |
| 123 case FXBSTR_ID('C', 'A', 0, 0): | |
| 124 m_GeneralState.SetStrokeAlpha(ClipFloat(pObject->GetNumber())); | |
| 125 break; | |
| 126 case FXBSTR_ID('c', 'a', 0, 0): | |
| 127 m_GeneralState.SetFillAlpha(ClipFloat(pObject->GetNumber())); | |
| 128 break; | |
| 129 case FXBSTR_ID('O', 'P', 0, 0): | |
| 130 m_GeneralState.SetStrokeOP(!!pObject->GetInteger()); | |
| 131 if (!pGS->KeyExist("op")) | |
| 132 m_GeneralState.SetFillOP(!!pObject->GetInteger()); | |
| 133 break; | |
| 134 case FXBSTR_ID('o', 'p', 0, 0): | |
| 135 m_GeneralState.SetFillOP(!!pObject->GetInteger()); | |
| 136 break; | |
| 137 case FXBSTR_ID('O', 'P', 'M', 0): | |
| 138 m_GeneralState.SetOPMode(pObject->GetInteger()); | |
| 139 break; | |
| 140 case FXBSTR_ID('B', 'G', 0, 0): | |
| 141 if (pGS->KeyExist("BG2")) { | |
| 142 continue; | |
| 143 } | |
| 144 case FXBSTR_ID('B', 'G', '2', 0): | |
| 145 m_GeneralState.SetBG(pObject); | |
| 146 break; | |
| 147 case FXBSTR_ID('U', 'C', 'R', 0): | |
| 148 if (pGS->KeyExist("UCR2")) { | |
| 149 continue; | |
| 150 } | |
| 151 case FXBSTR_ID('U', 'C', 'R', '2'): | |
| 152 m_GeneralState.SetUCR(pObject); | |
| 153 break; | |
| 154 case FXBSTR_ID('H', 'T', 0, 0): | |
| 155 m_GeneralState.SetHT(pObject); | |
| 156 break; | |
| 157 case FXBSTR_ID('F', 'L', 0, 0): | |
| 158 m_GeneralState.SetFlatness(pObject->GetNumber()); | |
| 159 break; | |
| 160 case FXBSTR_ID('S', 'M', 0, 0): | |
| 161 m_GeneralState.SetSmoothness(pObject->GetNumber()); | |
| 162 break; | |
| 163 case FXBSTR_ID('S', 'A', 0, 0): | |
| 164 m_GeneralState.SetStrokeAdjust(!!pObject->GetInteger()); | |
| 165 break; | |
| 166 case FXBSTR_ID('A', 'I', 'S', 0): | |
| 167 m_GeneralState.SetAlphaSource(!!pObject->GetInteger()); | |
| 168 break; | |
| 169 case FXBSTR_ID('T', 'K', 0, 0): | |
| 170 m_GeneralState.SetTextKnockout(!!pObject->GetInteger()); | |
| 171 break; | |
| 172 } | |
| 173 } | |
| 174 m_GeneralState.SetMatrix(m_CTM); | |
| 175 } | |
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Chromium Code Reviews
Issue 2386423004:
Move core/fpdfapi/fpdf_page to core/fpdfapi/page (Closed)
