DLLEXPORT FPDF_PAGE STDCALL FPDF_LoadPage(FPDF_DOCUMENT document, int page_index)
{
if (document == NULL) return NULL;
if (page_index < 0 || page_index >= FPDF_GetPageCount(document)) return NULL;
CPDF_Document* pDoc = (CPDF_Document*)document;
if (pDoc == NULL) return NULL;
CPDF_Dictionary* pDict = pDoc->GetPage(page_index);
if (pDict == NULL) return NULL;
CPDF_Page* pPage = new CPDF_Page;
pPage->Load(pDoc, pDict);
pPage->ParseContent();
return pPage;
}
DLLEXPORT int STDCALL FPDF_GetPageSizeByIndex(FPDF_DOCUMENT document, int page_index, double* width, double* height)
{
CPDF_Document* pDoc = (CPDF_Document*)document;
if(pDoc == NULL)
return FALSE;
CPDF_Dictionary* pDict = pDoc->GetPage(page_index);
if (pDict == NULL) return FALSE;
CPDF_Page page;
page.Load(pDoc, pDict);
*width = page.GetPageWidth();
*height = page.GetPageHeight();
return TRUE;
}
FX_BOOL Document::getPageNumWords(IFXJS_Context* cc, const CJS_Parameters& params, CJS_Value& vRet, CFX_WideString& sError)
{
ASSERT(m_pDocument != NULL);
if (!m_pDocument->GetPermissions(FPDFPERM_EXTRACT_ACCESS)) return FALSE;
int nPageNo = params.GetSize() > 0 ? params[0].ToInt() : 0;
CPDF_Document* pDocument = m_pDocument->GetDocument();
ASSERT(pDocument != NULL);
CJS_Context* pContext = static_cast<CJS_Context*>(cc);
if (nPageNo < 0 || nPageNo >= pDocument->GetPageCount())
{
sError = JSGetStringFromID(pContext, IDS_STRING_JSVALUEERROR);
return FALSE;
}
CPDF_Dictionary* pPageDict = pDocument->GetPage(nPageNo);
if (!pPageDict) return FALSE;
CPDF_Page page;
page.Load(pDocument, pPageDict);
page.StartParse();
page.ParseContent();
FX_POSITION pos = page.GetFirstObjectPosition();
int nWords = 0;
while (pos)
{
if (CPDF_PageObject* pPageObj = page.GetNextObject(pos))
{
if (pPageObj->m_Type == PDFPAGE_TEXT)
{
CPDF_TextObject* pTextObj = (CPDF_TextObject*)pPageObj;
nWords += CountWords(pTextObj);
}
}
}
vRet = nWords;
return TRUE;
}
FX_BOOL CPDFXFA_Page::LoadPDFPage() {
if (!m_pDocument)
return FALSE;
CPDF_Document* pPDFDoc = m_pDocument->GetPDFDoc();
if (!pPDFDoc)
return FALSE;
CPDF_Dictionary* pDict = pPDFDoc->GetPage(m_iPageIndex);
if (!pDict)
return FALSE;
if (!m_pPDFPage || m_pPDFPage->m_pFormDict != pDict) {
m_pPDFPage = WrapUnique(new CPDF_Page(pPDFDoc, pDict, true));
m_pPDFPage->ParseContent();
}
return TRUE;
}
DLLEXPORT FPDF_PAGE STDCALL FPDF_LoadPage(FPDF_DOCUMENT document, int page_index)
{
if (document == NULL) return NULL;
if (page_index < 0 || page_index >= FPDF_GetPageCount(document)) return NULL;
// CPDF_Parser* pParser = (CPDF_Parser*)document;
CPDF_Document* pDoc = (CPDF_Document*)document;
if (pDoc == NULL) return NULL;
CPDF_Dictionary* pDict = pDoc->GetPage(page_index);
if (pDict == NULL) return NULL;
CPDF_Page* pPage = FX_NEW CPDF_Page;
pPage->Load(pDoc, pDict);
try {
pPage->ParseContent();
}
catch (...) {
delete pPage;
return NULL;
}
// CheckUnSupportError(pDoc, 0);
return pPage;
}
FX_BOOL Document::getPageNthWord(IFXJS_Context* cc, const CJS_Parameters& params, CJS_Value& vRet, CFX_WideString& sError)
{
ASSERT(m_pDocument != NULL);
if (!m_pDocument->GetPermissions(FPDFPERM_EXTRACT_ACCESS)) return FALSE;
int nPageNo = params.GetSize() > 0 ? params[0].ToInt() : 0;
int nWordNo = params.GetSize() > 1 ? params[1].ToInt() : 0;
bool bStrip = params.GetSize() > 2 ? params[2].ToBool() : true;
CPDF_Document* pDocument = m_pDocument->GetDocument();
if (!pDocument) return FALSE;
CJS_Context* pContext = static_cast<CJS_Context*>(cc);
if (nPageNo < 0 || nPageNo >= pDocument->GetPageCount())
{
sError = JSGetStringFromID(pContext, IDS_STRING_JSVALUEERROR);
return FALSE;
}
CPDF_Dictionary* pPageDict = pDocument->GetPage(nPageNo);
if (!pPageDict) return FALSE;
CPDF_Page page;
page.Load(pDocument, pPageDict);
page.StartParse();
page.ParseContent();
FX_POSITION pos = page.GetFirstObjectPosition();
int nWords = 0;
CFX_WideString swRet;
while (pos)
{
if (CPDF_PageObject* pPageObj = page.GetNextObject(pos))
{
if (pPageObj->m_Type == PDFPAGE_TEXT)
{
int nObjWords = CountWords((CPDF_TextObject*)pPageObj);
if (nWords + nObjWords >= nWordNo)
{
swRet = GetObjWordStr((CPDF_TextObject*)pPageObj, nWordNo - nWords);
break;
}
nWords += nObjWords;
}
}
}
if (bStrip)
{
swRet.TrimLeft();
swRet.TrimRight();
}
vRet = swRet.c_str();
return TRUE;
}