CFX_WideString CPDF_PageLabel::GetLabel(int nPage) const
{
CFX_WideString wsLabel;
if (m_pDocument == NULL) {
return wsLabel;
}
CPDF_Dictionary* pPDFRoot = m_pDocument->GetRoot();
if (pPDFRoot == NULL) {
return wsLabel;
}
CPDF_Dictionary* pLabels = pPDFRoot->GetDict(FX_BSTRC("PageLabels"));
CPDF_NumberTree numberTree(pLabels);
CPDF_Object* pValue = NULL;
int n = nPage;
while (n >= 0) {
pValue = numberTree.LookupValue(n);
if (pValue != NULL) {
break;
}
n--;
}
if (pValue != NULL) {
pValue = pValue->GetDirect();
if (pValue->GetType() == PDFOBJ_DICTIONARY) {
CPDF_Dictionary* pLabel = (CPDF_Dictionary*)pValue;
if (pLabel->KeyExist(FX_BSTRC("P"))) {
wsLabel += pLabel->GetUnicodeText(FX_BSTRC("P"));
}
CFX_ByteString bsNumberingStyle = pLabel->GetString(FX_BSTRC("S"), NULL);
int nLabelNum = nPage - n + pLabel->GetInteger(FX_BSTRC("St"), 1);
CFX_WideString wsNumPortion = _GetLabelNumPortion(nLabelNum, bsNumberingStyle);
wsLabel += wsNumPortion;
return wsLabel;
}
}
wsLabel.Format(L"%d", nPage + 1);
return wsLabel;
}
CFX_WideString CPDF_PageLabel::GetLabel(int nPage) const {
CFX_WideString wsLabel;
if (!m_pDocument) {
return wsLabel;
}
CPDF_Dictionary* pPDFRoot = m_pDocument->GetRoot();
if (!pPDFRoot) {
return wsLabel;
}
CPDF_Dictionary* pLabels = pPDFRoot->GetDictBy("PageLabels");
CPDF_NumberTree numberTree(pLabels);
CPDF_Object* pValue = NULL;
int n = nPage;
while (n >= 0) {
pValue = numberTree.LookupValue(n);
if (pValue) {
break;
}
n--;
}
if (pValue) {
pValue = pValue->GetDirect();
if (CPDF_Dictionary* pLabel = pValue->AsDictionary()) {
if (pLabel->KeyExist("P")) {
wsLabel += pLabel->GetUnicodeTextBy("P");
}
CFX_ByteString bsNumberingStyle = pLabel->GetStringBy("S", NULL);
int nLabelNum = nPage - n + pLabel->GetIntegerBy("St", 1);
CFX_WideString wsNumPortion =
_GetLabelNumPortion(nLabelNum, bsNumberingStyle);
wsLabel += wsNumPortion;
return wsLabel;
}
}
wsLabel.Format(L"%d", nPage + 1);
return wsLabel;
}
