1 // Copyright 2014 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 "../../include/formfiller/FormFiller.h" 8 #include "../../include/formfiller/FFL_CBA_Fontmap.h" 9 10 CBA_FontMap::CBA_FontMap(CPDFSDK_Annot* pAnnot, IFX_SystemHandler* pSystemHandler) : 11 CPWL_FontMap(pSystemHandler), 12 m_pDocument(NULL), 13 m_pAnnotDict(NULL), 14 m_pDefaultFont(NULL), 15 m_sAPType("N") 16 { 17 ASSERT(pAnnot != NULL); 18 19 CPDF_Page* pPage = pAnnot->GetPDFPage(); 20 21 m_pDocument = pPage->m_pDocument; 22 m_pAnnotDict = pAnnot->GetPDFAnnot()->m_pAnnotDict; 23 } 24 25 CBA_FontMap::CBA_FontMap(CPDF_Document* pDocument, CPDF_Dictionary* pAnnotDict, 26 IFX_SystemHandler* pSystemHandler) : 27 CPWL_FontMap(pSystemHandler), 28 m_pDocument(pDocument), 29 m_pAnnotDict(pAnnotDict), 30 m_pDefaultFont(NULL), 31 m_sAPType("N") 32 { 33 } 34 35 CBA_FontMap::~CBA_FontMap() 36 { 37 } 38 39 void CBA_FontMap::Reset() 40 { 41 Empty(); 42 m_pDefaultFont = NULL; 43 m_sDefaultFontName = ""; 44 } 45 46 void CBA_FontMap::Initial(FX_LPCSTR fontname) 47 { 48 FX_INT32 nCharset = DEFAULT_CHARSET; 49 50 if (!m_pDefaultFont) 51 { 52 m_pDefaultFont = GetAnnotDefaultFont(m_sDefaultFontName); 53 if (m_pDefaultFont) 54 { 55 if (const CFX_SubstFont* pSubstFont = m_pDefaultFont->GetSubstFont()) 56 nCharset = pSubstFont->m_Charset; 57 else 58 { 59 if (m_sDefaultFontName == "Wingdings" || m_sDefaultFontName == "Wingdings2" || 60 m_sDefaultFontName == "Wingdings3" || m_sDefaultFontName == "Webdings") 61 nCharset = SYMBOL_CHARSET; 62 else 63 nCharset = ANSI_CHARSET; 64 } 65 AddFontData(m_pDefaultFont, m_sDefaultFontName, nCharset); 66 AddFontToAnnotDict(m_pDefaultFont, m_sDefaultFontName); 67 } 68 } 69 70 if (nCharset != ANSI_CHARSET) 71 CPWL_FontMap::Initial(fontname); 72 } 73 74 void CBA_FontMap::SetDefaultFont(CPDF_Font * pFont, const CFX_ByteString & sFontName) 75 { 76 ASSERT(pFont != NULL); 77 78 if (m_pDefaultFont) return; 79 80 m_pDefaultFont = pFont; 81 m_sDefaultFontName = sFontName; 82 83 // if (m_sDefaultFontName.IsEmpty()) 84 // m_sDefaultFontName = pFont->GetFontTypeName(); 85 86 FX_INT32 nCharset = DEFAULT_CHARSET; 87 if (const CFX_SubstFont* pSubstFont = m_pDefaultFont->GetSubstFont()) 88 nCharset = pSubstFont->m_Charset; 89 AddFontData(m_pDefaultFont, m_sDefaultFontName, nCharset); 90 } 91 92 CPDF_Font* CBA_FontMap::FindFontSameCharset(CFX_ByteString& sFontAlias, FX_INT32 nCharset) 93 { 94 ASSERT(m_pAnnotDict != NULL); 95 96 if (m_pAnnotDict->GetString("Subtype") == "Widget") 97 { 98 CPDF_Document* pDocument = GetDocument(); 99 ASSERT(pDocument != NULL); 100 101 CPDF_Dictionary * pRootDict = pDocument->GetRoot(); 102 if (!pRootDict) return NULL; 103 104 CPDF_Dictionary* pAcroFormDict = pRootDict->GetDict("AcroForm"); 105 if (!pAcroFormDict) return NULL; 106 107 CPDF_Dictionary * pDRDict = pAcroFormDict->GetDict("DR"); 108 if (!pDRDict) return NULL; 109 110 return FindResFontSameCharset(pDRDict, sFontAlias, nCharset); 111 } 112 113 return NULL; 114 } 115 116 CPDF_Document* CBA_FontMap::GetDocument() 117 { 118 return m_pDocument; 119 } 120 121 CPDF_Font* CBA_FontMap::FindResFontSameCharset(CPDF_Dictionary* pResDict, CFX_ByteString& sFontAlias, 122 FX_INT32 nCharset) 123 { 124 if (!pResDict) return NULL; 125 126 CPDF_Document* pDocument = GetDocument(); 127 ASSERT(pDocument != NULL); 128 129 CPDF_Dictionary* pFonts = pResDict->GetDict("Font"); 130 if (pFonts == NULL) return NULL; 131 132 CPDF_Font* pFind = NULL; 133 134 FX_POSITION pos = pFonts->GetStartPos(); 135 while (pos) 136 { 137 CPDF_Object* pObj = NULL; 138 CFX_ByteString csKey; 139 pObj = pFonts->GetNextElement(pos, csKey); 140 if (pObj == NULL) continue; 141 142 CPDF_Object* pDirect = pObj->GetDirect(); 143 if (pDirect == NULL || pDirect->GetType() != PDFOBJ_DICTIONARY) continue; 144 145 CPDF_Dictionary* pElement = (CPDF_Dictionary*)pDirect; 146 if (pElement->GetString("Type") != "Font") continue; 147 148 CPDF_Font* pFont = pDocument->LoadFont(pElement); 149 if (pFont == NULL) continue; 150 const CFX_SubstFont* pSubst = pFont->GetSubstFont(); 151 if (pSubst == NULL) continue; 152 if (pSubst->m_Charset == nCharset) 153 { 154 sFontAlias = csKey; 155 pFind = pFont; 156 } 157 } 158 return pFind; 159 } 160 161 void CBA_FontMap::AddedFont(CPDF_Font* pFont, const CFX_ByteString& sFontAlias) 162 { 163 AddFontToAnnotDict(pFont, sFontAlias); 164 } 165 166 void CBA_FontMap::AddFontToAnnotDict(CPDF_Font* pFont, const CFX_ByteString& sAlias) 167 { 168 if (!pFont) return; 169 170 ASSERT(m_pAnnotDict != NULL); 171 ASSERT(m_pDocument != NULL); 172 173 CPDF_Dictionary* pAPDict = m_pAnnotDict->GetDict("AP"); 174 175 if (pAPDict == NULL) 176 { 177 pAPDict = FX_NEW CPDF_Dictionary; 178 m_pAnnotDict->SetAt("AP", pAPDict); 179 } 180 181 //to avoid checkbox and radiobutton 182 CPDF_Object* pObject = pAPDict->GetElement(m_sAPType); 183 if (pObject && pObject->GetType() == PDFOBJ_DICTIONARY) 184 return; 185 186 CPDF_Stream* pStream = pAPDict->GetStream(m_sAPType); 187 if (pStream == NULL) 188 { 189 pStream = FX_NEW CPDF_Stream(NULL, 0, NULL); 190 FX_INT32 objnum = m_pDocument->AddIndirectObject(pStream); 191 pAPDict->SetAtReference(m_sAPType, m_pDocument, objnum); 192 } 193 194 CPDF_Dictionary * pStreamDict = pStream->GetDict(); 195 196 if (!pStreamDict) 197 { 198 pStreamDict = FX_NEW CPDF_Dictionary; 199 pStream->InitStream(NULL, 0, pStreamDict); 200 } 201 202 if (pStreamDict) 203 { 204 CPDF_Dictionary* pStreamResList = pStreamDict->GetDict("Resources"); 205 if (!pStreamResList) 206 { 207 pStreamResList = FX_NEW CPDF_Dictionary(); 208 pStreamDict->SetAt("Resources", pStreamResList); 209 } 210 211 if (pStreamResList) 212 { 213 CPDF_Dictionary* pStreamResFontList = pStreamResList->GetDict("Font"); 214 if (!pStreamResFontList) 215 { 216 pStreamResFontList = FX_NEW CPDF_Dictionary; 217 FX_INT32 objnum = m_pDocument->AddIndirectObject(pStreamResFontList); 218 pStreamResList->SetAtReference("Font", m_pDocument, objnum); 219 } 220 if (!pStreamResFontList->KeyExist(sAlias)) 221 pStreamResFontList->SetAtReference(sAlias, m_pDocument, pFont->GetFontDict()); 222 } 223 } 224 } 225 226 CPDF_Font* CBA_FontMap::GetAnnotDefaultFont(CFX_ByteString &sAlias) 227 { 228 ASSERT(m_pAnnotDict != NULL); 229 ASSERT(m_pDocument != NULL); 230 231 CPDF_Dictionary* pAcroFormDict = NULL; 232 233 FX_BOOL bWidget = (m_pAnnotDict->GetString("Subtype") == "Widget"); 234 235 if (bWidget) 236 { 237 if (CPDF_Dictionary * pRootDict = m_pDocument->GetRoot()) 238 pAcroFormDict = pRootDict->GetDict("AcroForm"); 239 } 240 241 CFX_ByteString sDA; 242 243 sDA = FPDF_GetFieldAttr(m_pAnnotDict, "DA")->GetString(); 244 245 if (bWidget) 246 { 247 if (sDA.IsEmpty()) 248 { 249 sDA = FPDF_GetFieldAttr(pAcroFormDict, "DA")->GetString(); 250 } 251 } 252 253 CPDF_Dictionary * pFontDict = NULL; 254 255 if (!sDA.IsEmpty()) 256 { 257 CPDF_SimpleParser syntax(sDA); 258 syntax.FindTagParam("Tf", 2); 259 CFX_ByteString sFontName = syntax.GetWord(); 260 sAlias = PDF_NameDecode(sFontName).Mid(1); 261 262 if (CPDF_Dictionary * pDRDict = m_pAnnotDict->GetDict("DR")) 263 if (CPDF_Dictionary* pDRFontDict = pDRDict->GetDict("Font")) 264 pFontDict = pDRFontDict->GetDict(sAlias); 265 266 if (!pFontDict) 267 if (CPDF_Dictionary* pAPDict = m_pAnnotDict->GetDict("AP")) 268 if (CPDF_Dictionary* pNormalDict = pAPDict->GetDict("N")) 269 if (CPDF_Dictionary* pNormalResDict = pNormalDict->GetDict("Resources")) 270 if (CPDF_Dictionary* pResFontDict = pNormalResDict->GetDict("Font")) 271 pFontDict = pResFontDict->GetDict(sAlias); 272 273 if (bWidget) 274 { 275 if (!pFontDict) 276 { 277 if (pAcroFormDict) 278 { 279 if (CPDF_Dictionary * pDRDict = pAcroFormDict->GetDict("DR")) 280 if (CPDF_Dictionary* pDRFontDict = pDRDict->GetDict("Font")) 281 pFontDict = pDRFontDict->GetDict(sAlias); 282 } 283 } 284 } 285 } 286 287 if (pFontDict) 288 return m_pDocument->LoadFont(pFontDict); 289 else 290 return NULL; 291 } 292 293 void CBA_FontMap::SetAPType(const CFX_ByteString& sAPType) 294 { 295 m_sAPType = sAPType; 296 297 Reset(); 298 Initial(); 299 } 300 301
