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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 "core/include/fpdfdoc/fpdf_doc.h"
#include "core/include/fpdftext/fpdf_text.h"
#include "fpdfsdk/include/fsdk_define.h"
#ifdef _WIN32
#include <tchar.h>
#endif
DLLEXPORT FPDF_TEXTPAGE STDCALL FPDFText_LoadPage(FPDF_PAGE page) {
CPDF_Page* pPDFPage = CPDFPageFromFPDFPage(page);
if (!pPDFPage)
return nullptr;
CPDF_ViewerPreferences viewRef(pPDFPage->m_pDocument);
IPDF_TextPage* textpage =
IPDF_TextPage::CreateTextPage(pPDFPage, viewRef.IsDirectionR2L());
textpage->ParseTextPage();
return textpage;
}
DLLEXPORT void STDCALL FPDFText_ClosePage(FPDF_TEXTPAGE text_page) {
delete (IPDF_TextPage*)text_page;
}
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 xTolerance,
double yTolerance) {
if (!text_page)
return -3;
IPDF_TextPage* textpage = (IPDF_TextPage*)text_page;
return textpage->GetIndexAtPos((FX_FLOAT)x, (FX_FLOAT)y, (FX_FLOAT)xTolerance,
(FX_FLOAT)yTolerance);
}
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) {
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 || 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) {
delete (IPDF_LinkExtract*)link_page;
}
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