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djvu GetInfo

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This commit is contained in:
Kulikova Svetlana
2022-03-10 17:40:05 +03:00
parent 0852fc134e
commit 8ef62fd670
5 changed files with 71 additions and 10 deletions
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34
DjVuFile/DjVuFileImplementation.cpp
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@ -258,6 +258,40 @@ void CDjVuFileImplementation::ConvertToPdf(const std::wstring& wsDstPath)
oPdf.SaveToFile(wsDstPath);
}
BYTE* CDjVuFileImplementation::GetInfo()
{
NSWasm::CData oRes;
oRes.SkipLen();
std::string sRes = "{";
double nW = 0;
double nH = 0;
double nDpi = 0;
GetPageInfo(0, &nW, &nH, &nDpi, &nDpi);
sRes += "\"PageSize\":\"";
std::string version = std::to_string(nW);
sRes += version.substr(0, version.length() - 4);
sRes += "x";
version = std::to_string(nH);
sRes += version.substr(0, version.length() - 4);
sRes += "\",";
sRes += "\"NumberOfPages\":";
sRes += std::to_string(GetPagesCount());
sRes += ",";
if (sRes[sRes.size() - 1] == ',')
sRes.pop_back();
sRes += "}";
oRes.WriteString((BYTE*)sRes.c_str(), sRes.length());
oRes.WriteLen();
BYTE* bRes = oRes.GetBuffer();
oRes.ClearWithoutAttack();
return bRes;
}
#ifdef BUILDING_WASM_MODULE
void getBookmars(const GP<DjVmNav>& nav, int& pos, int count, NSWasm::CData& out, int level)