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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/cpdf_type3font.h" | 7 #include "core/fpdfapi/fpdf_font/cpdf_type3font.h" |
| 8 | 8 |
| 9 #include "core/fpdfapi/fpdf_font/cpdf_type3char.h" | 9 #include "core/fpdfapi/fpdf_font/cpdf_type3char.h" |
| 10 #include "core/fpdfapi/fpdf_page/include/cpdf_form.h" | 10 #include "core/fpdfapi/fpdf_page/include/cpdf_form.h" |
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| 50 CPDF_Array* pBBox = m_pFontDict->GetArrayBy("FontBBox"); | 50 CPDF_Array* pBBox = m_pFontDict->GetArrayBy("FontBBox"); |
| 51 if (pBBox) { | 51 if (pBBox) { |
| 52 m_FontBBox.left = (int32_t)(pBBox->GetNumberAt(0) * xscale * 1000); | 52 m_FontBBox.left = (int32_t)(pBBox->GetNumberAt(0) * xscale * 1000); |
| 53 m_FontBBox.bottom = (int32_t)(pBBox->GetNumberAt(1) * yscale * 1000); | 53 m_FontBBox.bottom = (int32_t)(pBBox->GetNumberAt(1) * yscale * 1000); |
| 54 m_FontBBox.right = (int32_t)(pBBox->GetNumberAt(2) * xscale * 1000); | 54 m_FontBBox.right = (int32_t)(pBBox->GetNumberAt(2) * xscale * 1000); |
| 55 m_FontBBox.top = (int32_t)(pBBox->GetNumberAt(3) * yscale * 1000); | 55 m_FontBBox.top = (int32_t)(pBBox->GetNumberAt(3) * yscale * 1000); |
| 56 } | 56 } |
| 57 int StartChar = m_pFontDict->GetIntegerBy("FirstChar"); | 57 int StartChar = m_pFontDict->GetIntegerBy("FirstChar"); |
| 58 CPDF_Array* pWidthArray = m_pFontDict->GetArrayBy("Widths"); | 58 CPDF_Array* pWidthArray = m_pFontDict->GetArrayBy("Widths"); |
| 59 if (pWidthArray && (StartChar >= 0 && StartChar < 256)) { | 59 if (pWidthArray && (StartChar >= 0 && StartChar < 256)) { |
| 60 FX_DWORD count = pWidthArray->GetCount(); | 60 uint32_t count = pWidthArray->GetCount(); |
| 61 if (count > 256) { | 61 if (count > 256) { |
| 62 count = 256; | 62 count = 256; |
| 63 } | 63 } |
| 64 if (StartChar + count > 256) { | 64 if (StartChar + count > 256) { |
| 65 count = 256 - StartChar; | 65 count = 256 - StartChar; |
| 66 } | 66 } |
| 67 for (FX_DWORD i = 0; i < count; i++) { | 67 for (uint32_t i = 0; i < count; i++) { |
| 68 m_CharWidthL[StartChar + i] = | 68 m_CharWidthL[StartChar + i] = |
| 69 FXSYS_round(pWidthArray->GetNumberAt(i) * xscale * 1000); | 69 FXSYS_round(pWidthArray->GetNumberAt(i) * xscale * 1000); |
| 70 } | 70 } |
| 71 } | 71 } |
| 72 m_pCharProcs = m_pFontDict->GetDictBy("CharProcs"); | 72 m_pCharProcs = m_pFontDict->GetDictBy("CharProcs"); |
| 73 CPDF_Object* pEncoding = m_pFontDict->GetElementValue("Encoding"); | 73 CPDF_Object* pEncoding = m_pFontDict->GetElementValue("Encoding"); |
| 74 if (pEncoding) { | 74 if (pEncoding) { |
| 75 LoadPDFEncoding(pEncoding, m_BaseEncoding, m_pCharNames, FALSE, FALSE); | 75 LoadPDFEncoding(pEncoding, m_BaseEncoding, m_pCharNames, FALSE, FALSE); |
| 76 if (m_pCharNames) { | 76 if (m_pCharNames) { |
| 77 for (int i = 0; i < 256; i++) { | 77 for (int i = 0; i < 256; i++) { |
| 78 m_Encoding.m_Unicodes[i] = PDF_UnicodeFromAdobeName(m_pCharNames[i]); | 78 m_Encoding.m_Unicodes[i] = PDF_UnicodeFromAdobeName(m_pCharNames[i]); |
| 79 if (m_Encoding.m_Unicodes[i] == 0) { | 79 if (m_Encoding.m_Unicodes[i] == 0) { |
| 80 m_Encoding.m_Unicodes[i] = i; | 80 m_Encoding.m_Unicodes[i] = i; |
| 81 } | 81 } |
| 82 } | 82 } |
| 83 } | 83 } |
| 84 } | 84 } |
| 85 return TRUE; | 85 return TRUE; |
| 86 } | 86 } |
| 87 | 87 |
| 88 void CPDF_Type3Font::CheckType3FontMetrics() { | 88 void CPDF_Type3Font::CheckType3FontMetrics() { |
| 89 CheckFontMetrics(); | 89 CheckFontMetrics(); |
| 90 } | 90 } |
| 91 | 91 |
| 92 CPDF_Type3Char* CPDF_Type3Font::LoadChar(FX_DWORD charcode, int level) { | 92 CPDF_Type3Char* CPDF_Type3Font::LoadChar(uint32_t charcode, int level) { |
| 93 if (level >= _FPDF_MAX_TYPE3_FORM_LEVEL_) | 93 if (level >= _FPDF_MAX_TYPE3_FORM_LEVEL_) |
| 94 return nullptr; | 94 return nullptr; |
| 95 | 95 |
| 96 auto it = m_CacheMap.find(charcode); | 96 auto it = m_CacheMap.find(charcode); |
| 97 if (it != m_CacheMap.end()) | 97 if (it != m_CacheMap.end()) |
| 98 return it->second; | 98 return it->second; |
| 99 | 99 |
| 100 const FX_CHAR* name = | 100 const FX_CHAR* name = |
| 101 GetAdobeCharName(m_BaseEncoding, m_pCharNames, charcode); | 101 GetAdobeCharName(m_BaseEncoding, m_pCharNames, charcode); |
| 102 if (!name) | 102 if (!name) |
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| 138 ASSERT(!pdfium::ContainsKey(m_CacheMap, charcode)); | 138 ASSERT(!pdfium::ContainsKey(m_CacheMap, charcode)); |
| 139 CPDF_Type3Char* pCachedChar = pNewChar.release(); | 139 CPDF_Type3Char* pCachedChar = pNewChar.release(); |
| 140 m_CacheMap[charcode] = pCachedChar; | 140 m_CacheMap[charcode] = pCachedChar; |
| 141 if (pCachedChar->m_pForm->GetPageObjectList()->empty()) { | 141 if (pCachedChar->m_pForm->GetPageObjectList()->empty()) { |
| 142 delete pCachedChar->m_pForm; | 142 delete pCachedChar->m_pForm; |
| 143 pCachedChar->m_pForm = nullptr; | 143 pCachedChar->m_pForm = nullptr; |
| 144 } | 144 } |
| 145 return pCachedChar; | 145 return pCachedChar; |
| 146 } | 146 } |
| 147 | 147 |
| 148 int CPDF_Type3Font::GetCharWidthF(FX_DWORD charcode, int level) { | 148 int CPDF_Type3Font::GetCharWidthF(uint32_t charcode, int level) { |
| 149 if (charcode >= FX_ArraySize(m_CharWidthL)) | 149 if (charcode >= FX_ArraySize(m_CharWidthL)) |
| 150 charcode = 0; | 150 charcode = 0; |
| 151 | 151 |
| 152 if (m_CharWidthL[charcode]) | 152 if (m_CharWidthL[charcode]) |
| 153 return m_CharWidthL[charcode]; | 153 return m_CharWidthL[charcode]; |
| 154 | 154 |
| 155 const CPDF_Type3Char* pChar = LoadChar(charcode, level); | 155 const CPDF_Type3Char* pChar = LoadChar(charcode, level); |
| 156 return pChar ? pChar->m_Width : 0; | 156 return pChar ? pChar->m_Width : 0; |
| 157 } | 157 } |
| 158 | 158 |
| 159 FX_RECT CPDF_Type3Font::GetCharBBox(FX_DWORD charcode, int level) { | 159 FX_RECT CPDF_Type3Font::GetCharBBox(uint32_t charcode, int level) { |
| 160 const CPDF_Type3Char* pChar = LoadChar(charcode, level); | 160 const CPDF_Type3Char* pChar = LoadChar(charcode, level); |
| 161 return pChar ? pChar->m_BBox : FX_RECT(); | 161 return pChar ? pChar->m_BBox : FX_RECT(); |
| 162 } | 162 } |
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