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1 // Copyright 2016 PDFium Authors. All rights reserved. | 1 // Copyright 2016 PDFium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com | 5 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com |
6 | 6 |
7 #include "core/fpdfapi/fpdf_font/include/cpdf_font.h" | 7 #include "core/fpdfapi/fpdf_font/include/cpdf_font.h" |
8 #include "core/fpdfapi/fpdf_page/cpdf_textstate.h" | 8 #include "core/fpdfapi/fpdf_page/cpdf_textstate.h" |
9 #include "core/fpdfapi/fpdf_page/pageint.h" | 9 #include "core/fpdfapi/fpdf_page/pageint.h" |
10 #include "core/fpdfapi/fpdf_parser/include/cpdf_document.h" | 10 #include "core/fpdfapi/fpdf_parser/include/cpdf_document.h" |
11 | 11 |
12 void CPDF_TextState::SetFont(CPDF_Font* pFont) { | 12 void CPDF_TextState::SetFont(CPDF_Font* pFont) { |
13 MakePrivateCopy(); | 13 CPDF_TextStateData* pStateData = GetPrivateCopy(); |
14 CPDF_TextStateData* pStateData = GetObject(); | 14 if (pStateData) { |
15 CPDF_Document* pDoc = pStateData->m_pDocument; | 15 CPDF_Document* pDoc = pStateData->m_pDocument; |
16 CPDF_DocPageData* pPageData = pDoc ? pDoc->GetPageData() : nullptr; | 16 CPDF_DocPageData* pPageData = pDoc ? pDoc->GetPageData() : nullptr; |
17 if (pPageData && pStateData->m_pFont && !pPageData->IsForceClear()) | 17 if (pPageData && pStateData->m_pFont && !pPageData->IsForceClear()) { |
18 pPageData->ReleaseFont(pStateData->m_pFont->GetFontDict()); | 18 pPageData->ReleaseFont(pStateData->m_pFont->GetFontDict()); |
19 | 19 } |
20 pStateData->m_pDocument = pFont ? pFont->m_pDocument : nullptr; | 20 pStateData->m_pDocument = pFont ? pFont->m_pDocument : nullptr; |
21 pStateData->m_pFont = pFont; | 21 pStateData->m_pFont = pFont; |
| 22 } |
22 } | 23 } |
23 | 24 |
24 FX_FLOAT CPDF_TextState::GetFontSizeV() const { | 25 FX_FLOAT CPDF_TextState::GetFontSizeV() const { |
25 const FX_FLOAT* pMatrix = GetMatrix(); | 26 const FX_FLOAT* pMatrix = GetMatrix(); |
26 FX_FLOAT unit = FXSYS_sqrt2(pMatrix[1], pMatrix[3]); | 27 FX_FLOAT unit = FXSYS_sqrt2(pMatrix[1], pMatrix[3]); |
27 FX_FLOAT size = unit * GetFontSize(); | 28 FX_FLOAT size = unit * GetFontSize(); |
28 return (FX_FLOAT)FXSYS_fabs(size); | 29 return (FX_FLOAT)FXSYS_fabs(size); |
29 } | 30 } |
30 | 31 |
31 FX_FLOAT CPDF_TextState::GetFontSizeH() const { | 32 FX_FLOAT CPDF_TextState::GetFontSizeH() const { |
32 const FX_FLOAT* pMatrix = GetMatrix(); | 33 const FX_FLOAT* pMatrix = GetMatrix(); |
33 FX_FLOAT unit = FXSYS_sqrt2(pMatrix[0], pMatrix[2]); | 34 FX_FLOAT unit = FXSYS_sqrt2(pMatrix[0], pMatrix[2]); |
34 FX_FLOAT size = unit * GetFontSize(); | 35 FX_FLOAT size = unit * GetFontSize(); |
35 return (FX_FLOAT)FXSYS_fabs(size); | 36 return (FX_FLOAT)FXSYS_fabs(size); |
36 } | 37 } |
37 | 38 |
38 FX_FLOAT CPDF_TextState::GetBaselineAngle() const { | 39 FX_FLOAT CPDF_TextState::GetBaselineAngle() const { |
39 const FX_FLOAT* m_Matrix = GetMatrix(); | 40 const FX_FLOAT* m_Matrix = GetMatrix(); |
40 return FXSYS_atan2(m_Matrix[2], m_Matrix[0]); | 41 return FXSYS_atan2(m_Matrix[2], m_Matrix[0]); |
41 } | 42 } |
42 | 43 |
43 FX_FLOAT CPDF_TextState::GetShearAngle() const { | 44 FX_FLOAT CPDF_TextState::GetShearAngle() const { |
44 const FX_FLOAT* m_Matrix = GetMatrix(); | 45 const FX_FLOAT* m_Matrix = GetMatrix(); |
45 FX_FLOAT shear_angle = FXSYS_atan2(m_Matrix[1], m_Matrix[3]); | 46 FX_FLOAT shear_angle = FXSYS_atan2(m_Matrix[1], m_Matrix[3]); |
46 return GetBaselineAngle() + shear_angle; | 47 return GetBaselineAngle() + shear_angle; |
47 } | 48 } |
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