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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_textstate.h" | |
| 8 | |
| 9 #include "core/fpdfapi/font/cpdf_font.h" | |
| 10 #include "core/fpdfapi/fpdf_page/pageint.h" | |
| 11 #include "core/fpdfapi/fpdf_parser/cpdf_document.h" | |
| 12 | |
| 13 CPDF_TextState::CPDF_TextState() {} | |
| 14 CPDF_TextState::~CPDF_TextState() {} | |
| 15 | |
| 16 void CPDF_TextState::Emplace() { | |
| 17 m_Ref.Emplace(); | |
| 18 } | |
| 19 | |
| 20 CPDF_Font* CPDF_TextState::GetFont() const { | |
| 21 return m_Ref.GetObject()->m_pFont; | |
| 22 } | |
| 23 | |
| 24 void CPDF_TextState::SetFont(CPDF_Font* pFont) { | |
| 25 m_Ref.GetPrivateCopy()->SetFont(pFont); | |
| 26 } | |
| 27 | |
| 28 FX_FLOAT CPDF_TextState::GetFontSize() const { | |
| 29 return m_Ref.GetObject()->m_FontSize; | |
| 30 } | |
| 31 | |
| 32 void CPDF_TextState::SetFontSize(FX_FLOAT size) { | |
| 33 m_Ref.GetPrivateCopy()->m_FontSize = size; | |
| 34 } | |
| 35 | |
| 36 const FX_FLOAT* CPDF_TextState::GetMatrix() const { | |
| 37 return m_Ref.GetObject()->m_Matrix; | |
| 38 } | |
| 39 | |
| 40 FX_FLOAT* CPDF_TextState::GetMutableMatrix() { | |
| 41 return m_Ref.GetPrivateCopy()->m_Matrix; | |
| 42 } | |
| 43 | |
| 44 FX_FLOAT CPDF_TextState::GetCharSpace() const { | |
| 45 return m_Ref.GetObject()->m_CharSpace; | |
| 46 } | |
| 47 | |
| 48 void CPDF_TextState::SetCharSpace(FX_FLOAT sp) { | |
| 49 m_Ref.GetPrivateCopy()->m_CharSpace = sp; | |
| 50 } | |
| 51 | |
| 52 FX_FLOAT CPDF_TextState::GetWordSpace() const { | |
| 53 return m_Ref.GetObject()->m_WordSpace; | |
| 54 } | |
| 55 | |
| 56 void CPDF_TextState::SetWordSpace(FX_FLOAT sp) { | |
| 57 m_Ref.GetPrivateCopy()->m_WordSpace = sp; | |
| 58 } | |
| 59 | |
| 60 FX_FLOAT CPDF_TextState::GetFontSizeV() const { | |
| 61 return m_Ref.GetObject()->GetFontSizeV(); | |
| 62 } | |
| 63 | |
| 64 FX_FLOAT CPDF_TextState::GetFontSizeH() const { | |
| 65 return m_Ref.GetObject()->GetFontSizeH(); | |
| 66 } | |
| 67 | |
| 68 FX_FLOAT CPDF_TextState::GetBaselineAngle() const { | |
| 69 return m_Ref.GetObject()->GetBaselineAngle(); | |
| 70 } | |
| 71 | |
| 72 FX_FLOAT CPDF_TextState::GetShearAngle() const { | |
| 73 return m_Ref.GetObject()->GetShearAngle(); | |
| 74 } | |
| 75 | |
| 76 TextRenderingMode CPDF_TextState::GetTextMode() const { | |
| 77 return m_Ref.GetObject()->m_TextMode; | |
| 78 } | |
| 79 | |
| 80 void CPDF_TextState::SetTextMode(TextRenderingMode mode) { | |
| 81 m_Ref.GetPrivateCopy()->m_TextMode = mode; | |
| 82 } | |
| 83 | |
| 84 const FX_FLOAT* CPDF_TextState::GetCTM() const { | |
| 85 return m_Ref.GetObject()->m_CTM; | |
| 86 } | |
| 87 | |
| 88 FX_FLOAT* CPDF_TextState::GetMutableCTM() { | |
| 89 return m_Ref.GetPrivateCopy()->m_CTM; | |
| 90 } | |
| 91 | |
| 92 CPDF_TextState::TextData::TextData() | |
| 93 : m_pFont(nullptr), | |
| 94 m_pDocument(nullptr), | |
| 95 m_FontSize(1.0f), | |
| 96 m_CharSpace(0), | |
| 97 m_WordSpace(0), | |
| 98 m_TextMode(TextRenderingMode::MODE_FILL) { | |
| 99 m_Matrix[0] = m_Matrix[3] = 1.0f; | |
| 100 m_Matrix[1] = m_Matrix[2] = 0; | |
| 101 m_CTM[0] = m_CTM[3] = 1.0f; | |
| 102 m_CTM[1] = m_CTM[2] = 0; | |
| 103 } | |
| 104 | |
| 105 CPDF_TextState::TextData::TextData(const TextData& that) | |
| 106 : m_pFont(that.m_pFont), | |
| 107 m_pDocument(that.m_pDocument), | |
| 108 m_FontSize(that.m_FontSize), | |
| 109 m_CharSpace(that.m_CharSpace), | |
| 110 m_WordSpace(that.m_WordSpace), | |
| 111 m_TextMode(that.m_TextMode) { | |
| 112 for (int i = 0; i < 4; ++i) | |
| 113 m_Matrix[i] = that.m_Matrix[i]; | |
| 114 | |
| 115 for (int i = 0; i < 4; ++i) | |
| 116 m_CTM[i] = that.m_CTM[i]; | |
| 117 | |
| 118 if (m_pDocument && m_pFont) { | |
| 119 m_pFont = | |
| 120 m_pDocument->GetPageData()->GetFont(m_pFont->GetFontDict(), FALSE); | |
| 121 } | |
| 122 } | |
| 123 | |
| 124 CPDF_TextState::TextData::~TextData() { | |
| 125 if (m_pDocument && m_pFont) { | |
| 126 CPDF_DocPageData* pPageData = m_pDocument->GetPageData(); | |
| 127 if (pPageData && !pPageData->IsForceClear()) | |
| 128 pPageData->ReleaseFont(m_pFont->GetFontDict()); | |
| 129 } | |
| 130 } | |
| 131 | |
| 132 void CPDF_TextState::TextData::SetFont(CPDF_Font* pFont) { | |
| 133 CPDF_Document* pDoc = m_pDocument; | |
| 134 CPDF_DocPageData* pPageData = pDoc ? pDoc->GetPageData() : nullptr; | |
| 135 if (pPageData && m_pFont && !pPageData->IsForceClear()) | |
| 136 pPageData->ReleaseFont(m_pFont->GetFontDict()); | |
| 137 | |
| 138 m_pDocument = pFont ? pFont->m_pDocument : nullptr; | |
| 139 m_pFont = pFont; | |
| 140 } | |
| 141 | |
| 142 FX_FLOAT CPDF_TextState::TextData::GetFontSizeV() const { | |
| 143 return FXSYS_fabs(FXSYS_sqrt2(m_Matrix[1], m_Matrix[3]) * m_FontSize); | |
| 144 } | |
| 145 | |
| 146 FX_FLOAT CPDF_TextState::TextData::GetFontSizeH() const { | |
| 147 return FXSYS_fabs(FXSYS_sqrt2(m_Matrix[0], m_Matrix[2]) * m_FontSize); | |
| 148 } | |
| 149 | |
| 150 FX_FLOAT CPDF_TextState::TextData::GetBaselineAngle() const { | |
| 151 return FXSYS_atan2(m_Matrix[2], m_Matrix[0]); | |
| 152 } | |
| 153 | |
| 154 FX_FLOAT CPDF_TextState::TextData::GetShearAngle() const { | |
| 155 return GetBaselineAngle() + FXSYS_atan2(m_Matrix[1], m_Matrix[3]); | |
| 156 } | |
| 157 | |
| 158 bool SetTextRenderingModeFromInt(int iMode, TextRenderingMode* mode) { | |
| 159 if (iMode < 0 || iMode > 7) | |
| 160 return false; | |
| 161 *mode = static_cast<TextRenderingMode>(iMode); | |
| 162 return true; | |
| 163 } | |
| 164 | |
| 165 bool TextRenderingModeIsClipMode(const TextRenderingMode& mode) { | |
| 166 switch (mode) { | |
| 167 case TextRenderingMode::MODE_FILL_CLIP: | |
| 168 case TextRenderingMode::MODE_STROKE_CLIP: | |
| 169 case TextRenderingMode::MODE_FILL_STROKE_CLIP: | |
| 170 case TextRenderingMode::MODE_CLIP: | |
| 171 return true; | |
| 172 default: | |
| 173 return false; | |
| 174 } | |
| 175 } | |
| 176 | |
| 177 bool TextRenderingModeIsStrokeMode(const TextRenderingMode& mode) { | |
| 178 switch (mode) { | |
| 179 case TextRenderingMode::MODE_STROKE: | |
| 180 case TextRenderingMode::MODE_FILL_STROKE: | |
| 181 case TextRenderingMode::MODE_STROKE_CLIP: | |
| 182 case TextRenderingMode::MODE_FILL_STROKE_CLIP: | |
| 183 return true; | |
| 184 default: | |
| 185 return false; | |
| 186 } | |
| 187 } | |
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