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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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