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 "../../public/fpdf_text.h" 8 #include "../include/fsdk_define.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 CPDF_ViewerPreferences viewRef(((CPDF_Page*)page)->m_pDocument); 22 textpage=IPDF_TextPage::CreateTextPage((CPDF_Page*)page,viewRef.IsDirectionR2L()); 23 textpage->ParseTextPage(); 24 return textpage; 25 } 26 DLLEXPORT void STDCALL FPDFText_ClosePage(FPDF_TEXTPAGE text_page) 27 { 28 if (text_page){ 29 IPDF_TextPage* textpage=(IPDF_TextPage*)text_page; 30 delete textpage; 31 text_page=NULL; 32 } 33 } 34 DLLEXPORT int STDCALL FPDFText_CountChars(FPDF_TEXTPAGE text_page) 35 { 36 if (!text_page) return -1; 37 IPDF_TextPage* textpage=(IPDF_TextPage*)text_page; 38 return textpage->CountChars(); 39 } 40 DLLEXPORT unsigned int STDCALL FPDFText_GetUnicode(FPDF_TEXTPAGE text_page, int index) 41 { 42 if (!text_page) return -1; 43 IPDF_TextPage* textpage=(IPDF_TextPage*)text_page; 44 45 if (index<0 || index>=textpage->CountChars()) return 0; 46 47 FPDF_CHAR_INFO charinfo; 48 textpage->GetCharInfo(index,charinfo); 49 return charinfo.m_Unicode; 50 } 51 DLLEXPORT double STDCALL FPDFText_GetFontSize(FPDF_TEXTPAGE text_page, int index) 52 { 53 if (!text_page) return 0; 54 IPDF_TextPage* textpage=(IPDF_TextPage*)text_page; 55 56 if (index<0 || index>=textpage->CountChars()) return 0; 57 58 FPDF_CHAR_INFO charinfo; 59 textpage->GetCharInfo(index,charinfo); 60 return charinfo.m_FontSize; 61 } 62 63 DLLEXPORT void STDCALL FPDFText_GetCharBox(FPDF_TEXTPAGE text_page, int index,double* left, 64 double* right, double* bottom, double* top) 65 { 66 if (!text_page) return; 67 IPDF_TextPage* textpage=(IPDF_TextPage*)text_page; 68 69 if (index<0 || index>=textpage->CountChars()) return ; 70 FPDF_CHAR_INFO charinfo; 71 textpage->GetCharInfo(index,charinfo); 72 *left=charinfo.m_CharBox.left; 73 *right=charinfo.m_CharBox.right; 74 *bottom=charinfo.m_CharBox.bottom; 75 *top=charinfo.m_CharBox.top; 76 } 77 78 //select 79 DLLEXPORT int STDCALL FPDFText_GetCharIndexAtPos(FPDF_TEXTPAGE text_page,double x,double y,double xTorelance,double yTorelance) 80 { 81 if (!text_page) return -3; 82 IPDF_TextPage* textpage=(IPDF_TextPage*)text_page; 83 return textpage->GetIndexAtPos((FX_FLOAT)x,(FX_FLOAT)y,(FX_FLOAT)xTorelance,(FX_FLOAT)yTorelance); 84 } 85 86 DLLEXPORT int STDCALL FPDFText_GetText(FPDF_TEXTPAGE text_page,int start,int count,unsigned short* result) 87 { 88 if (!text_page) return 0; 89 IPDF_TextPage* textpage=(IPDF_TextPage*)text_page; 90 91 if (start>=textpage->CountChars()) return 0; 92 93 CFX_WideString str=textpage->GetPageText(start,count); 94 if(str.GetLength()>count) 95 str = str.Left(count); 96 97 CFX_ByteString cbUTF16str = str.UTF16LE_Encode(); 98 FXSYS_memcpy(result,cbUTF16str.GetBuffer(cbUTF16str.GetLength()),cbUTF16str.GetLength()); 99 cbUTF16str.ReleaseBuffer(cbUTF16str.GetLength()); 100 101 return cbUTF16str.GetLength()/sizeof(unsigned short); 102 } 103 104 DLLEXPORT int STDCALL FPDFText_CountRects(FPDF_TEXTPAGE text_page,int start,int count) 105 { 106 if (!text_page) return 0; 107 IPDF_TextPage* textpage=(IPDF_TextPage*)text_page; 108 return textpage->CountRects(start,count); 109 110 } 111 DLLEXPORT void STDCALL FPDFText_GetRect(FPDF_TEXTPAGE text_page,int rect_index, double* left,double* top, 112 double* right, double* bottom) 113 { 114 if (!text_page) return; 115 IPDF_TextPage* textpage=(IPDF_TextPage*)text_page; 116 CFX_FloatRect rect; 117 textpage->GetRect(rect_index,rect.left,rect.top,rect.right,rect.bottom); 118 *left=rect.left; 119 *top=rect.top; 120 *right=rect.right; 121 *bottom=rect.bottom; 122 } 123 124 DLLEXPORT int STDCALL FPDFText_GetBoundedText(FPDF_TEXTPAGE text_page,double left, double top, 125 double right, double bottom,unsigned short* buffer,int buflen) 126 { 127 if (!text_page) return 0; 128 IPDF_TextPage* textpage=(IPDF_TextPage*)text_page; 129 CFX_FloatRect rect((FX_FLOAT)left,(FX_FLOAT)bottom,(FX_FLOAT)right,(FX_FLOAT)top); 130 CFX_WideString str=textpage->GetTextByRect(rect); 131 132 if (buflen<=0 || buffer==NULL) 133 { 134 return str.GetLength(); 135 } 136 137 CFX_ByteString cbUTF16Str = str.UTF16LE_Encode(); 138 int len = cbUTF16Str.GetLength()/sizeof(unsigned short); 139 int size = buflen > len ? len : buflen; 140 FXSYS_memcpy(buffer,cbUTF16Str.GetBuffer(size*sizeof(unsigned short)),size*sizeof(unsigned short)); 141 cbUTF16Str.ReleaseBuffer(size*sizeof(unsigned short)); 142 143 return size; 144 145 } 146 147 //Search 148 //-1 for end 149 DLLEXPORT FPDF_SCHHANDLE STDCALL FPDFText_FindStart(FPDF_TEXTPAGE text_page,FPDF_WIDESTRING findwhat,unsigned long flags,int start_index) 150 { 151 if (!text_page) return NULL; 152 IPDF_TextPageFind* textpageFind=NULL; 153 textpageFind=IPDF_TextPageFind::CreatePageFind((IPDF_TextPage*)text_page); 154 FX_STRSIZE len = CFX_WideString::WStringLength(findwhat); 155 textpageFind->FindFirst(CFX_WideString::FromUTF16LE(findwhat, len),flags,start_index); 156 return textpageFind; 157 } 158 DLLEXPORT FPDF_BOOL STDCALL FPDFText_FindNext(FPDF_SCHHANDLE handle) 159 { 160 if (!handle) return FALSE; 161 IPDF_TextPageFind* textpageFind=(IPDF_TextPageFind*)handle; 162 return textpageFind->FindNext(); 163 } 164 DLLEXPORT FPDF_BOOL STDCALL FPDFText_FindPrev(FPDF_SCHHANDLE handle) 165 { 166 if (!handle) return FALSE; 167 IPDF_TextPageFind* textpageFind=(IPDF_TextPageFind*)handle; 168 return textpageFind->FindPrev(); 169 } 170 DLLEXPORT int STDCALL FPDFText_GetSchResultIndex(FPDF_SCHHANDLE handle) 171 { 172 if (!handle) return 0; 173 IPDF_TextPageFind* textpageFind=(IPDF_TextPageFind*)handle; 174 return textpageFind->GetCurOrder(); 175 } 176 DLLEXPORT int STDCALL FPDFText_GetSchCount(FPDF_SCHHANDLE handle) 177 { 178 if (!handle) return 0; 179 IPDF_TextPageFind* textpageFind=(IPDF_TextPageFind*)handle; 180 return textpageFind->GetMatchedCount(); 181 } 182 DLLEXPORT void STDCALL FPDFText_FindClose(FPDF_SCHHANDLE handle) 183 { 184 if (!handle) return; 185 IPDF_TextPageFind* textpageFind=(IPDF_TextPageFind*)handle; 186 delete textpageFind; 187 handle=NULL; 188 } 189 190 //web link 191 DLLEXPORT FPDF_PAGELINK STDCALL FPDFLink_LoadWebLinks(FPDF_TEXTPAGE text_page) 192 { 193 if (!text_page) return NULL; 194 IPDF_LinkExtract* pageLink=NULL; 195 pageLink=IPDF_LinkExtract::CreateLinkExtract(); 196 pageLink->ExtractLinks((IPDF_TextPage*)text_page); 197 return pageLink; 198 } 199 DLLEXPORT int STDCALL FPDFLink_CountWebLinks(FPDF_PAGELINK link_page) 200 { 201 if (!link_page) return 0; 202 IPDF_LinkExtract* pageLink=(IPDF_LinkExtract*)link_page; 203 return pageLink->CountLinks(); 204 } 205 DLLEXPORT int STDCALL FPDFLink_GetURL(FPDF_PAGELINK link_page,int link_index, unsigned short* buffer,int buflen) 206 { 207 if (!link_page) return 0; 208 IPDF_LinkExtract* pageLink=(IPDF_LinkExtract*)link_page; 209 CFX_WideString url=pageLink->GetURL(link_index); 210 211 CFX_ByteString cbUTF16URL = url.UTF16LE_Encode(); 212 int len= cbUTF16URL.GetLength()/sizeof(unsigned short); 213 if (buffer==NULL || buflen<=0) 214 return len; 215 int size=len<buflen ? len :buflen; 216 if (size>0) 217 { 218 FXSYS_memcpy(buffer,cbUTF16URL.GetBuffer(size*sizeof(unsigned short)),size*sizeof(unsigned short)); 219 cbUTF16URL.ReleaseBuffer(size*sizeof(unsigned short)); 220 } 221 return size; 222 } 223 DLLEXPORT int STDCALL FPDFLink_CountRects(FPDF_PAGELINK link_page,int link_index) 224 { 225 if (!link_page) return 0; 226 IPDF_LinkExtract* pageLink=(IPDF_LinkExtract*)link_page; 227 CFX_RectArray rectArray; 228 pageLink->GetRects(link_index,rectArray); 229 return rectArray.GetSize(); 230 } 231 DLLEXPORT void STDCALL FPDFLink_GetRect(FPDF_PAGELINK link_page,int link_index, int rect_index, double* left, 232 double* top,double* right, double* bottom) 233 { 234 if (!link_page) return; 235 IPDF_LinkExtract* pageLink=(IPDF_LinkExtract*)link_page; 236 CFX_RectArray rectArray; 237 pageLink->GetRects(link_index,rectArray); 238 if (rect_index >= 0 && rect_index < rectArray.GetSize()) { 239 CFX_FloatRect rect=rectArray.GetAt(rect_index); 240 *left=rect.left; 241 *right=rect.right; 242 *top=rect.top; 243 *bottom=rect.bottom; 244 } 245 } 246 DLLEXPORT void STDCALL FPDFLink_CloseWebLinks(FPDF_PAGELINK link_page) 247 { 248 if (!link_page) return; 249 IPDF_LinkExtract* pageLink=(IPDF_LinkExtract*)link_page; 250 delete pageLink; 251 pageLink =NULL; 252 } 253 254
