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/fsdk_define.h" 8 #include "../include/fpdftext.h" 9 10 #ifdef _WIN32 11 #include <tchar.h> 12 #endif 13 14 // jabdelmalek: commented out to build on Linux. Not used. 15 // extern HANDLE g_hModule; 16 17 DLLEXPORT FPDF_TEXTPAGE STDCALL FPDFText_LoadPage(FPDF_PAGE page) 18 { 19 if (!page) return NULL; 20 IPDF_TextPage* textpage=NULL; 21 try 22 { 23 CPDF_ViewerPreferences viewRef(((CPDF_Page*)page)->m_pDocument); 24 textpage=IPDF_TextPage::CreateTextPage((CPDF_Page*)page,viewRef.IsDirectionR2L()); 25 textpage->ParseTextPage(); 26 } 27 catch (...) 28 { 29 if (textpage) 30 delete textpage; 31 return NULL; 32 } 33 return textpage; 34 } 35 DLLEXPORT void STDCALL FPDFText_ClosePage(FPDF_TEXTPAGE text_page) 36 { 37 if (text_page){ 38 IPDF_TextPage* textpage=(IPDF_TextPage*)text_page; 39 delete textpage; 40 text_page=NULL; 41 } 42 } 43 DLLEXPORT int STDCALL FPDFText_CountChars(FPDF_TEXTPAGE text_page) 44 { 45 if (!text_page) return -1; 46 IPDF_TextPage* textpage=(IPDF_TextPage*)text_page; 47 return textpage->CountChars(); 48 } 49 DLLEXPORT unsigned int STDCALL FPDFText_GetUnicode(FPDF_TEXTPAGE text_page, int index) 50 { 51 if (!text_page) return -1; 52 IPDF_TextPage* textpage=(IPDF_TextPage*)text_page; 53 54 if (index<0 || index>=textpage->CountChars()) return 0; 55 56 FPDF_CHAR_INFO charinfo; 57 textpage->GetCharInfo(index,charinfo); 58 return charinfo.m_Unicode; 59 } 60 DLLEXPORT double STDCALL FPDFText_GetFontSize(FPDF_TEXTPAGE text_page, int index) 61 { 62 if (!text_page) return 0; 63 IPDF_TextPage* textpage=(IPDF_TextPage*)text_page; 64 65 if (index<0 || index>=textpage->CountChars()) return 0; 66 67 FPDF_CHAR_INFO charinfo; 68 textpage->GetCharInfo(index,charinfo); 69 return charinfo.m_FontSize; 70 } 71 72 DLLEXPORT void STDCALL FPDFText_GetCharBox(FPDF_TEXTPAGE text_page, int index,double* left, 73 double* right, double* bottom, double* top) 74 { 75 if (!text_page) return; 76 IPDF_TextPage* textpage=(IPDF_TextPage*)text_page; 77 78 if (index<0 || index>=textpage->CountChars()) return ; 79 FPDF_CHAR_INFO charinfo; 80 textpage->GetCharInfo(index,charinfo); 81 *left=charinfo.m_CharBox.left; 82 *right=charinfo.m_CharBox.right; 83 *bottom=charinfo.m_CharBox.bottom; 84 *top=charinfo.m_CharBox.top; 85 } 86 87 //select 88 DLLEXPORT int STDCALL FPDFText_GetCharIndexAtPos(FPDF_TEXTPAGE text_page,double x,double y,double xTorelance,double yTorelance) 89 { 90 if (!text_page) return -3; 91 IPDF_TextPage* textpage=(IPDF_TextPage*)text_page; 92 return textpage->GetIndexAtPos((FX_FLOAT)x,(FX_FLOAT)y,(FX_FLOAT)xTorelance,(FX_FLOAT)yTorelance); 93 } 94 95 DLLEXPORT int STDCALL FPDFText_GetText(FPDF_TEXTPAGE text_page,int start,int count,unsigned short* result) 96 { 97 if (!text_page) return 0; 98 IPDF_TextPage* textpage=(IPDF_TextPage*)text_page; 99 100 if (start>=textpage->CountChars()) return 0; 101 102 CFX_WideString str=textpage->GetPageText(start,count); 103 if(str.GetLength()>count) 104 str = str.Left(count); 105 106 CFX_ByteString cbUTF16str = str.UTF16LE_Encode(); 107 FXSYS_memcpy(result,cbUTF16str.GetBuffer(cbUTF16str.GetLength()),cbUTF16str.GetLength()); 108 cbUTF16str.ReleaseBuffer(cbUTF16str.GetLength()); 109 110 return cbUTF16str.GetLength()/sizeof(unsigned short); 111 } 112 113 DLLEXPORT int STDCALL FPDFText_CountRects(FPDF_TEXTPAGE text_page,int start,int count) 114 { 115 if (!text_page) return 0; 116 IPDF_TextPage* textpage=(IPDF_TextPage*)text_page; 117 return textpage->CountRects(start,count); 118 119 } 120 DLLEXPORT void STDCALL FPDFText_GetRect(FPDF_TEXTPAGE text_page,int rect_index, double* left,double* top, 121 double* right, double* bottom) 122 { 123 if (!text_page) return; 124 IPDF_TextPage* textpage=(IPDF_TextPage*)text_page; 125 CFX_FloatRect rect; 126 textpage->GetRect(rect_index,rect.left,rect.top,rect.right,rect.bottom); 127 *left=rect.left; 128 *top=rect.top; 129 *right=rect.right; 130 *bottom=rect.bottom; 131 } 132 133 DLLEXPORT int STDCALL FPDFText_GetBoundedText(FPDF_TEXTPAGE text_page,double left, double top, 134 double right, double bottom,unsigned short* buffer,int buflen) 135 { 136 if (!text_page) return 0; 137 IPDF_TextPage* textpage=(IPDF_TextPage*)text_page; 138 CFX_FloatRect rect((FX_FLOAT)left,(FX_FLOAT)bottom,(FX_FLOAT)right,(FX_FLOAT)top); 139 CFX_WideString str=textpage->GetTextByRect(rect); 140 141 if (buflen<=0 || buffer==NULL) 142 { 143 return str.GetLength(); 144 } 145 146 CFX_ByteString cbUTF16Str = str.UTF16LE_Encode(); 147 int len = cbUTF16Str.GetLength()/sizeof(unsigned short); 148 int size = buflen > len ? len : buflen; 149 FXSYS_memcpy(buffer,cbUTF16Str.GetBuffer(size*sizeof(unsigned short)),size*sizeof(unsigned short)); 150 cbUTF16Str.ReleaseBuffer(size*sizeof(unsigned short)); 151 152 return size; 153 154 } 155 156 //Search 157 //-1 for end 158 DLLEXPORT FPDF_SCHHANDLE STDCALL FPDFText_FindStart(FPDF_TEXTPAGE text_page,FPDF_WIDESTRING findwhat,unsigned long flags,int start_index) 159 { 160 if (!text_page) return NULL; 161 IPDF_TextPageFind* textpageFind=NULL; 162 try 163 { 164 textpageFind=IPDF_TextPageFind::CreatePageFind((IPDF_TextPage*)text_page); 165 textpageFind->FindFirst(CFX_WideString::FromUTF16LE(findwhat),flags,start_index); 166 } 167 catch (...) 168 { 169 if (textpageFind) 170 delete textpageFind; 171 return NULL; 172 } 173 return textpageFind; 174 } 175 DLLEXPORT FPDF_BOOL STDCALL FPDFText_FindNext(FPDF_SCHHANDLE handle) 176 { 177 if (!handle) return FALSE; 178 IPDF_TextPageFind* textpageFind=(IPDF_TextPageFind*)handle; 179 return textpageFind->FindNext(); 180 } 181 DLLEXPORT FPDF_BOOL STDCALL FPDFText_FindPrev(FPDF_SCHHANDLE handle) 182 { 183 if (!handle) return FALSE; 184 IPDF_TextPageFind* textpageFind=(IPDF_TextPageFind*)handle; 185 return textpageFind->FindPrev(); 186 } 187 DLLEXPORT int STDCALL FPDFText_GetSchResultIndex(FPDF_SCHHANDLE handle) 188 { 189 if (!handle) return 0; 190 IPDF_TextPageFind* textpageFind=(IPDF_TextPageFind*)handle; 191 return textpageFind->GetCurOrder(); 192 } 193 DLLEXPORT int STDCALL FPDFText_GetSchCount(FPDF_SCHHANDLE handle) 194 { 195 if (!handle) return 0; 196 IPDF_TextPageFind* textpageFind=(IPDF_TextPageFind*)handle; 197 return textpageFind->GetMatchedCount(); 198 } 199 DLLEXPORT void STDCALL FPDFText_FindClose(FPDF_SCHHANDLE handle) 200 { 201 if (!handle) return; 202 IPDF_TextPageFind* textpageFind=(IPDF_TextPageFind*)handle; 203 delete textpageFind; 204 handle=NULL; 205 } 206 207 //web link 208 DLLEXPORT FPDF_PAGELINK STDCALL FPDFLink_LoadWebLinks(FPDF_TEXTPAGE text_page) 209 { 210 if (!text_page) return NULL; 211 IPDF_LinkExtract* pageLink=NULL; 212 try 213 { 214 pageLink=IPDF_LinkExtract::CreateLinkExtract(); 215 pageLink->ExtractLinks((IPDF_TextPage*)text_page); 216 } 217 catch (...) 218 { 219 if (pageLink) 220 delete pageLink; 221 return NULL; 222 } 223 return pageLink; 224 } 225 DLLEXPORT int STDCALL FPDFLink_CountWebLinks(FPDF_PAGELINK link_page) 226 { 227 if (!link_page) return 0; 228 IPDF_LinkExtract* pageLink=(IPDF_LinkExtract*)link_page; 229 return pageLink->CountLinks(); 230 } 231 DLLEXPORT int STDCALL FPDFLink_GetURL(FPDF_PAGELINK link_page,int link_index, unsigned short* buffer,int buflen) 232 { 233 if (!link_page) return 0; 234 IPDF_LinkExtract* pageLink=(IPDF_LinkExtract*)link_page; 235 CFX_WideString url=pageLink->GetURL(link_index); 236 237 CFX_ByteString cbUTF16URL = url.UTF16LE_Encode(); 238 int len= cbUTF16URL.GetLength()/sizeof(unsigned short); 239 if (buffer==NULL || buflen<=0) 240 return len; 241 int size=len<buflen ? len :buflen; 242 if (size>0) 243 { 244 FXSYS_memcpy(buffer,cbUTF16URL.GetBuffer(size*sizeof(unsigned short)),size*sizeof(unsigned short)); 245 cbUTF16URL.ReleaseBuffer(size*sizeof(unsigned short)); 246 } 247 return size; 248 } 249 DLLEXPORT int STDCALL FPDFLink_CountRects(FPDF_PAGELINK link_page,int link_index) 250 { 251 if (!link_page) return 0; 252 IPDF_LinkExtract* pageLink=(IPDF_LinkExtract*)link_page; 253 CFX_RectArray rectArray; 254 pageLink->GetRects(link_index,rectArray); 255 return rectArray.GetSize(); 256 } 257 DLLEXPORT void STDCALL FPDFLink_GetRect(FPDF_PAGELINK link_page,int link_index, int rect_index, double* left, 258 double* top,double* right, double* bottom) 259 { 260 if (!link_page) return; 261 IPDF_LinkExtract* pageLink=(IPDF_LinkExtract*)link_page; 262 CFX_RectArray rectArray; 263 pageLink->GetRects(link_index,rectArray); 264 CFX_FloatRect rect; 265 rect=rectArray.GetAt(rect_index); 266 *left=rect.left; 267 *right=rect.right; 268 *top=rect.top; 269 *bottom=rect.bottom; 270 } 271 DLLEXPORT void STDCALL FPDFLink_CloseWebLinks(FPDF_PAGELINK link_page) 272 { 273 if (!link_page) return; 274 IPDF_LinkExtract* pageLink=(IPDF_LinkExtract*)link_page; 275 delete pageLink; 276 pageLink =NULL; 277 } 278 279
