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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_font/include/cpdf_font.h" |
| 8 #include "core/fpdfapi/fpdf_page/cpdf_textstate.h" |
| 9 #include "core/fpdfapi/fpdf_page/pageint.h" |
| 10 #include "core/fpdfapi/fpdf_parser/include/cpdf_document.h" |
| 11 |
| 12 void CPDF_TextState::SetFont(CPDF_Font* pFont) { |
| 13 MakePrivateCopy(); |
| 14 CPDF_TextStateData* pStateData = GetObject(); |
| 15 CPDF_Document* pDoc = pStateData->m_pDocument; |
| 16 CPDF_DocPageData* pPageData = pDoc ? pDoc->GetPageData() : nullptr; |
| 17 if (pPageData && pStateData->m_pFont && !pPageData->IsForceClear()) |
| 18 pPageData->ReleaseFont(pStateData->m_pFont->GetFontDict()); |
| 19 |
| 20 pStateData->m_pDocument = pFont ? pFont->m_pDocument : nullptr; |
| 21 pStateData->m_pFont = pFont; |
| 22 } |
| 23 |
| 24 FX_FLOAT CPDF_TextState::GetFontSizeV() const { |
| 25 const FX_FLOAT* pMatrix = GetMatrix(); |
| 26 FX_FLOAT unit = FXSYS_sqrt2(pMatrix[1], pMatrix[3]); |
| 27 FX_FLOAT size = unit * GetFontSize(); |
| 28 return (FX_FLOAT)FXSYS_fabs(size); |
| 29 } |
| 30 |
| 31 FX_FLOAT CPDF_TextState::GetFontSizeH() const { |
| 32 const FX_FLOAT* pMatrix = GetMatrix(); |
| 33 FX_FLOAT unit = FXSYS_sqrt2(pMatrix[0], pMatrix[2]); |
| 34 FX_FLOAT size = unit * GetFontSize(); |
| 35 return (FX_FLOAT)FXSYS_fabs(size); |
| 36 } |
| 37 |
| 38 FX_FLOAT CPDF_TextState::GetBaselineAngle() const { |
| 39 const FX_FLOAT* m_Matrix = GetMatrix(); |
| 40 return FXSYS_atan2(m_Matrix[2], m_Matrix[0]); |
| 41 } |
| 42 |
| 43 FX_FLOAT CPDF_TextState::GetShearAngle() const { |
| 44 const FX_FLOAT* m_Matrix = GetMatrix(); |
| 45 FX_FLOAT shear_angle = FXSYS_atan2(m_Matrix[1], m_Matrix[3]); |
| 46 return GetBaselineAngle() + shear_angle; |
| 47 } |
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