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// Copyright 2014 PDFium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
#include "../../public/fpdf_text.h"
#include "../include/fsdk_define.h"
#include "../include/fpdfxfa/fpdfxfa_doc.h"
#include "../include/fpdfxfa/fpdfxfa_page.h"
#ifdef _WIN32
#include <tchar.h>
#endif
// jabdelmalek: commented out to build on Linux. Not used.
// extern HANDLE g_hModule;
DLLEXPORT FPDF_TEXTPAGE STDCALL FPDFText_LoadPage(FPDF_PAGE page)
{
if (!page) return NULL;
IPDF_TextPage* textpage=NULL;
CPDFXFA_Page* pPage = (CPDFXFA_Page*)page;
if (!pPage->GetPDFPage()) return NULL;
CPDFXFA_Document* pDoc = pPage->GetDocument();
CPDF_ViewerPreferences viewRef(pDoc->GetPDFDoc());
textpage=IPDF_TextPage::CreateTextPage((CPDF_Page*)pPage->GetPDFPage(),viewRef.IsDirectionR2L());
textpage->ParseTextPage();
return textpage;
}
DLLEXPORT void STDCALL FPDFText_ClosePage(FPDF_TEXTPAGE text_page)
{
if (text_page){
IPDF_TextPage* textpage=(IPDF_TextPage*)text_page;
delete textpage;
text_page=NULL;
}
}
DLLEXPORT int STDCALL FPDFText_CountChars(FPDF_TEXTPAGE text_page)
{
if (!text_page) return -1;
IPDF_TextPage* textpage=(IPDF_TextPage*)text_page;
return textpage->CountChars();
}
DLLEXPORT unsigned int STDCALL FPDFText_GetUnicode(FPDF_TEXTPAGE text_page, int index)
{
if (!text_page) return -1;
IPDF_TextPage* textpage=(IPDF_TextPage*)text_page;
if (index<0 || index>=textpage->CountChars()) return 0;
FPDF_CHAR_INFO charinfo;
textpage->GetCharInfo(index,charinfo);
return charinfo.m_Unicode;
}
DLLEXPORT double STDCALL FPDFText_GetFontSize(FPDF_TEXTPAGE text_page, int index)
{
if (!text_page) return 0;
IPDF_TextPage* textpage=(IPDF_TextPage*)text_page;
if (index<0 || index>=textpage->CountChars()) return 0;
FPDF_CHAR_INFO charinfo;
textpage->GetCharInfo(index,charinfo);
return charinfo.m_FontSize;
}
DLLEXPORT void STDCALL FPDFText_GetCharBox(FPDF_TEXTPAGE text_page, int index,double* left,
double* right, double* bottom, double* top)
{
if (!text_page) return;
IPDF_TextPage* textpage=(IPDF_TextPage*)text_page;
if (index<0 || index>=textpage->CountChars()) return ;
FPDF_CHAR_INFO charinfo;
textpage->GetCharInfo(index,charinfo);
*left=charinfo.m_CharBox.left;
*right=charinfo.m_CharBox.right;
*bottom=charinfo.m_CharBox.bottom;
*top=charinfo.m_CharBox.top;
}
//select
DLLEXPORT int STDCALL FPDFText_GetCharIndexAtPos(FPDF_TEXTPAGE text_page,double x,double y,double xTorelance,double yTorelance)
{
if (!text_page) return -3;
IPDF_TextPage* textpage=(IPDF_TextPage*)text_page;
return textpage->GetIndexAtPos((FX_FLOAT)x,(FX_FLOAT)y,(FX_FLOAT)xTorelance,(FX_FLOAT)yTorelance);
}
DLLEXPORT int STDCALL FPDFText_GetText(FPDF_TEXTPAGE text_page,int start,int count,unsigned short* result)
{
if (!text_page) return 0;
IPDF_TextPage* textpage=(IPDF_TextPage*)text_page;
if (start>=textpage->CountChars()) return 0;
CFX_WideString str=textpage->GetPageText(start,count);
if(str.GetLength()>count)
str = str.Left(count);
CFX_ByteString cbUTF16str = str.UTF16LE_Encode();
FXSYS_memcpy(result,cbUTF16str.GetBuffer(cbUTF16str.GetLength()),cbUTF16str.GetLength());
cbUTF16str.ReleaseBuffer(cbUTF16str.GetLength());
return cbUTF16str.GetLength()/sizeof(unsigned short);
}
DLLEXPORT int STDCALL FPDFText_CountRects(FPDF_TEXTPAGE text_page,int start,int count)
{
if (!text_page) return 0;
IPDF_TextPage* textpage=(IPDF_TextPage*)text_page;
return textpage->CountRects(start,count);
}
DLLEXPORT void STDCALL FPDFText_GetRect(FPDF_TEXTPAGE text_page,int rect_index, double* left,double* top,
double* right, double* bottom)
{
if (!text_page) return;
IPDF_TextPage* textpage=(IPDF_TextPage*)text_page;
CFX_FloatRect rect;
textpage->GetRect(rect_index,rect.left,rect.top,rect.right,rect.bottom);
*left=rect.left;
*top=rect.top;
*right=rect.right;
*bottom=rect.bottom;
}
DLLEXPORT int STDCALL FPDFText_GetBoundedText(FPDF_TEXTPAGE text_page,double left, double top,
double right, double bottom,unsigned short* buffer,int buflen)
{
if (!text_page) return 0;
IPDF_TextPage* textpage=(IPDF_TextPage*)text_page;
CFX_FloatRect rect((FX_FLOAT)left,(FX_FLOAT)bottom,(FX_FLOAT)right,(FX_FLOAT)top);
CFX_WideString str=textpage->GetTextByRect(rect);
if (buflen<=0 || buffer==NULL)
{
return str.GetLength();
}
CFX_ByteString cbUTF16Str = str.UTF16LE_Encode();
int len = cbUTF16Str.GetLength()/sizeof(unsigned short);
int size = buflen > len ? len : buflen;
FXSYS_memcpy(buffer,cbUTF16Str.GetBuffer(size*sizeof(unsigned short)),size*sizeof(unsigned short));
cbUTF16Str.ReleaseBuffer(size*sizeof(unsigned short));
return size;
}
//Search
//-1 for end
DLLEXPORT FPDF_SCHHANDLE STDCALL FPDFText_FindStart(FPDF_TEXTPAGE text_page,FPDF_WIDESTRING findwhat,unsigned long flags,int start_index)
{
if (!text_page) return NULL;
IPDF_TextPageFind* textpageFind=NULL;
textpageFind=IPDF_TextPageFind::CreatePageFind((IPDF_TextPage*)text_page);
FX_STRSIZE len = CFX_WideString::WStringLength(findwhat);
textpageFind->FindFirst(CFX_WideString::FromUTF16LE(findwhat, len),flags,start_index);
return textpageFind;
}
DLLEXPORT FPDF_BOOL STDCALL FPDFText_FindNext(FPDF_SCHHANDLE handle)
{
if (!handle) return FALSE;
IPDF_TextPageFind* textpageFind=(IPDF_TextPageFind*)handle;
return textpageFind->FindNext();
}
DLLEXPORT FPDF_BOOL STDCALL FPDFText_FindPrev(FPDF_SCHHANDLE handle)
{
if (!handle) return FALSE;
IPDF_TextPageFind* textpageFind=(IPDF_TextPageFind*)handle;
return textpageFind->FindPrev();
}
DLLEXPORT int STDCALL FPDFText_GetSchResultIndex(FPDF_SCHHANDLE handle)
{
if (!handle) return 0;
IPDF_TextPageFind* textpageFind=(IPDF_TextPageFind*)handle;
return textpageFind->GetCurOrder();
}
DLLEXPORT int STDCALL FPDFText_GetSchCount(FPDF_SCHHANDLE handle)
{
if (!handle) return 0;
IPDF_TextPageFind* textpageFind=(IPDF_TextPageFind*)handle;
return textpageFind->GetMatchedCount();
}
DLLEXPORT void STDCALL FPDFText_FindClose(FPDF_SCHHANDLE handle)
{
if (!handle) return;
IPDF_TextPageFind* textpageFind=(IPDF_TextPageFind*)handle;
delete textpageFind;
handle=NULL;
}
//web link
DLLEXPORT FPDF_PAGELINK STDCALL FPDFLink_LoadWebLinks(FPDF_TEXTPAGE text_page)
{
if (!text_page) return NULL;
IPDF_LinkExtract* pageLink=NULL;
pageLink=IPDF_LinkExtract::CreateLinkExtract();
pageLink->ExtractLinks((IPDF_TextPage*)text_page);
return pageLink;
}
DLLEXPORT int STDCALL FPDFLink_CountWebLinks(FPDF_PAGELINK link_page)
{
if (!link_page) return 0;
IPDF_LinkExtract* pageLink=(IPDF_LinkExtract*)link_page;
return pageLink->CountLinks();
}
DLLEXPORT int STDCALL FPDFLink_GetURL(FPDF_PAGELINK link_page,int link_index, unsigned short* buffer,int buflen)
{
if (!link_page) return 0;
IPDF_LinkExtract* pageLink=(IPDF_LinkExtract*)link_page;
CFX_WideString url=pageLink->GetURL(link_index);
CFX_ByteString cbUTF16URL = url.UTF16LE_Encode();
int len= cbUTF16URL.GetLength()/sizeof(unsigned short);
if (buffer==NULL || buflen<=0)
return len;
int size=len<buflen ? len :buflen;
if (size>0)
{
FXSYS_memcpy(buffer,cbUTF16URL.GetBuffer(size*sizeof(unsigned short)),size*sizeof(unsigned short));
cbUTF16URL.ReleaseBuffer(size*sizeof(unsigned short));
}
return size;
}
DLLEXPORT int STDCALL FPDFLink_CountRects(FPDF_PAGELINK link_page,int link_index)
{
if (!link_page) return 0;
IPDF_LinkExtract* pageLink=(IPDF_LinkExtract*)link_page;
CFX_RectArray rectArray;
pageLink->GetRects(link_index,rectArray);
return rectArray.GetSize();
}
DLLEXPORT void STDCALL FPDFLink_GetRect(FPDF_PAGELINK link_page,int link_index, int rect_index, double* left,
double* top,double* right, double* bottom)
{
if (!link_page) return;
IPDF_LinkExtract* pageLink=(IPDF_LinkExtract*)link_page;
CFX_RectArray rectArray;
pageLink->GetRects(link_index,rectArray);
if (rect_index >= 0 && rect_index < rectArray.GetSize()) {
CFX_FloatRect rect=rectArray.GetAt(rect_index);
*left=rect.left;
*right=rect.right;
*top=rect.top;
*bottom=rect.bottom;
}
}
DLLEXPORT void STDCALL FPDFLink_CloseWebLinks(FPDF_PAGELINK link_page)
{
if (!link_page) return;
IPDF_LinkExtract* pageLink=(IPDF_LinkExtract*)link_page;
delete pageLink;
pageLink =NULL;
}
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