static int InsertDeletePDFPage(CPDF_Document* pDoc, CPDF_Dictionary* pPages,
int nPagesToGo, CPDF_Dictionary* pPage, FX_BOOL bInsert, CFX_PtrArray& stackList)
{
CPDF_Array* pKidList = pPages->GetArray("Kids");
if (!pKidList) {
return -1;
}
int nKids = pKidList->GetCount();
for (int i = 0; i < nKids; i ++) {
CPDF_Dictionary* pKid = pKidList->GetDict(i);
if (pKid->GetString("Type") == FX_BSTRC("Page")) {
if (nPagesToGo == 0) {
if (bInsert) {
pKidList->InsertAt(i, CPDF_Reference::Create(pDoc, pPage->GetObjNum()));
pPage->SetAtReference("Parent", pDoc, pPages->GetObjNum());
} else {
pKidList->RemoveAt(i);
}
pPages->SetAtInteger("Count", pPages->GetInteger("Count") + (bInsert ? 1 : -1));
return 1;
}
nPagesToGo --;
} else {
int nPages = pKid->GetInteger("Count");
if (nPagesToGo < nPages) {
int stackCount = stackList.GetSize();
for (int j = 0; j < stackCount; ++j) {
if (pKid == stackList[j]) {
return -1;
}
}
stackList.Add(pKid);
if (InsertDeletePDFPage(pDoc, pKid, nPagesToGo, pPage, bInsert, stackList) < 0) {
return -1;
}
stackList.RemoveAt(stackCount);
pPages->SetAtInteger("Count", pPages->GetInteger("Count") + (bInsert ? 1 : -1));
return 1;
}
nPagesToGo -= nPages;
}
}
return 0;
}
FX_BOOL CPDF_TextStream::ProcessObject(const CPDF_TextObject* pObj, FX_BOOL bFirstLine)
{
CPDF_Font* pFont = pObj->GetFont();
CFX_AffineMatrix matrix;
pObj->GetTextMatrix(&matrix);
int item_index = 0;
if (m_pLastObj) {
int result = FPDFText_ProcessInterObj(m_pLastObj, pObj);
if (result == 2) {
int len = m_Buffer.GetLength();
if (len && m_bUseLF && m_Buffer.GetBuffer()[len - 1] == L'-') {
m_Buffer.Delete(len - 1, 1);
if (m_pObjArray) {
m_pObjArray->RemoveAt((len - 1) * 2, 2);
}
} else {
if (bFirstLine) {
return TRUE;
}
if (m_bUseLF) {
m_Buffer.AppendChar(L'\r');
m_Buffer.AppendChar(L'\n');
if (m_pObjArray) {
for (int i = 0; i < 4; i ++) {
m_pObjArray->Add(NULL);
}
}
} else {
m_Buffer.AppendChar(' ');
if (m_pObjArray) {
m_pObjArray->Add(NULL);
m_pObjArray->Add(NULL);
}
}
}
} else if (result == 1) {
m_Buffer.AppendChar(L' ');
if (m_pObjArray) {
m_pObjArray->Add(NULL);
m_pObjArray->Add(NULL);
}
} else if (result == -1) {
m_pLastObj = pObj;
return FALSE;
} else if (result == 3) {
item_index = 1;
}
}
m_pLastObj = pObj;
int nItems = pObj->CountItems();
FX_FLOAT Ignorekerning = 0;
for(int i = 1; i < nItems - 1; i += 2) {
CPDF_TextObjectItem item;
pObj->GetItemInfo(i, &item);
if (item.m_CharCode == (FX_DWORD) - 1) {
if(i == 1) {
Ignorekerning = item.m_OriginX;
} else if(Ignorekerning > item.m_OriginX) {
Ignorekerning = item.m_OriginX;
}
} else {
Ignorekerning = 0;
break;
}
}
FX_FLOAT spacing = 0;
for (; item_index < nItems; item_index ++) {
CPDF_TextObjectItem item;
pObj->GetItemInfo(item_index, &item);
if (item.m_CharCode == (FX_DWORD) - 1) {
CFX_WideString wstr = m_Buffer.GetWideString();
if (wstr.IsEmpty() || wstr.GetAt(wstr.GetLength() - 1) == L' ') {
continue;
}
FX_FLOAT fontsize_h = pObj->m_TextState.GetFontSizeH();
spacing = -fontsize_h * (item.m_OriginX - Ignorekerning) / 1000;
continue;
}
FX_FLOAT charSpace = pObj->m_TextState.GetObject()->m_CharSpace;
if(nItems > 3 && !spacing) {
charSpace = 0;
}
if((spacing || charSpace) && item_index > 0) {
int last_width = 0;
FX_FLOAT fontsize_h = pObj->m_TextState.GetFontSizeH();
FX_DWORD space_charcode = pFont->CharCodeFromUnicode(' ');
FX_FLOAT threshold = 0;
if (space_charcode != -1) {
threshold = fontsize_h * pFont->GetCharWidthF(space_charcode) / 1000 ;
}
if(threshold > fontsize_h / 3) {
threshold = 0;
} else {
threshold /= 2;
}
if (threshold == 0) {
threshold = fontsize_h;
int this_width = FXSYS_abs(GetCharWidth(item.m_CharCode, pFont));
threshold = this_width > last_width ? (FX_FLOAT)this_width : (FX_FLOAT)last_width;
int nDivide = 6;
if (threshold < 300) {
nDivide = 2;
} else if (threshold < 500) {
nDivide = 4;
} else if (threshold < 700) {
nDivide = 5;
}
threshold = threshold / nDivide;
threshold = fontsize_h * threshold / 1000;
}
if(charSpace > 0.001) {
spacing += matrix.TransformDistance(charSpace);
} else if(charSpace < -0.001) {
spacing -= matrix.TransformDistance(FXSYS_fabs(charSpace));
}
if (threshold && (spacing && spacing >= threshold) ) {
m_Buffer.AppendChar(L' ');
if (m_pObjArray) {
m_pObjArray->Add(NULL);
m_pObjArray->Add(NULL);
}
}
if (item.m_CharCode == (FX_DWORD) - 1) {
continue;
}
spacing = 0;
}
CFX_WideString unicode_str = pFont->UnicodeFromCharCode(item.m_CharCode);
if (unicode_str.IsEmpty()) {
m_Buffer.AppendChar((FX_WCHAR)item.m_CharCode);
if (m_pObjArray) {
m_pObjArray->Add((void*)pObj);
m_pObjArray->Add((void*)(FX_INTPTR)item_index);
}
} else {
m_Buffer << unicode_str;
if (m_pObjArray) {
for (int i = 0; i < unicode_str.GetLength(); i ++) {
m_pObjArray->Add((void*)pObj);
m_pObjArray->Add((void*)(FX_INTPTR)item_index);
}
}
}
}
return FALSE;
}