void DjVuSource::ReadAnnotations(GP<ByteStream> pInclStream, set<GUTF8String>& processed, GP<ByteStream> pAnnoStream) { // Look for shared annotations GUTF8String strInclude; char buf[1024]; int nLength; while ((nLength = pInclStream->read(buf, 1024))) strInclude += GUTF8String(buf, nLength); // Eat '\n' in the beginning and at the end while (strInclude.length() > 0 && strInclude[0] == '\n') strInclude = strInclude.substr(1, static_cast<unsigned int>(-1)); while (strInclude.length() > 0 && strInclude[static_cast<int>(strInclude.length()) - 1] == '\n') strInclude.setat(strInclude.length() - 1, 0); if (strInclude.length() > 0 && processed.find(strInclude) == processed.end()) { processed.insert(strInclude); GURL urlInclude = m_pDjVuDoc->id_to_url(strInclude); GP<DataPool> pool = m_pDjVuDoc->request_data(NULL, urlInclude); GP<ByteStream> stream = pool->get_stream(); GP<IFFByteStream> iff(IFFByteStream::create(stream)); // Check file format GUTF8String chkid; if (!iff->get_chunk(chkid) || (chkid != "FORM:DJVI" && chkid != "FORM:DJVU" && chkid != "FORM:PM44" && chkid != "FORM:BM44")) { return; } // Find chunk with page info while (iff->get_chunk(chkid) != 0) { GP<ByteStream> chunk_stream = iff->get_bytestream(); if (chkid == "INCL") { ReadAnnotations(pInclStream, processed, pAnnoStream); } else if (chkid == "FORM:ANNO") { pAnnoStream->copy(*chunk_stream); } else if (chkid == "ANTa" || chkid == "ANTz") { const GP<IFFByteStream> iffout = IFFByteStream::create(pAnnoStream); iffout->put_chunk(chkid); iffout->copy(*chunk_stream); iffout->close_chunk(); } iff->seek_close_chunk(); } } }
inline void ReadAnnotations( const string& file, vector<pair<string, vector<float> > >& samples, const int key_point_count = 72, const bool warnEmpty = false) { ReadAnnotations(file.c_str(), samples, key_point_count, warnEmpty); }
void DBTreeCtrl::ReadNode(tinyxml2::XMLElement *lvRootNode, wxTreeItemId parent, DBCatalog *cat) { wxString str, str2; long ival; int level; tinyxml2::XMLElement *child = lvRootNode->FirstChildElement(); while (child) { if (strcmp(child->Name(), "Group") == 0) { str = child->Attribute("Name"); wxTreeItemId item = AppendItem(parent, str, 1); DBItemInfo* item_data = new DBItemInfo; item_data->type = 1;//group; SetItemData(item, item_data); ReadNode(child, item, cat); } if (strcmp(child->Name(), "Data") == 0) { DBItemInfo* item_data = new DBItemInfo; str = child->Attribute("Name"); str2 = child->Attribute("Description"); item_data->desc = str + wxT(" ") + str2; item_data->desc.MakeLower(); item_data->name = str + wxT(" ") + str2; if (cat) item_data->cat_name = cat->name; wxTreeItemId item = AppendItem(parent, item_data->name, 0); item_data->type = 2;//data; str = child->Attribute("DataURL"); item_data->data_url = str; str = child->Attribute("SampleID"); str.ToLong(&ival); item_data->sample_id = ival; str = child->Attribute("AnnotationURL"); item_data->annotation_url = str; ReadAnnotations(str, item_data->annotations); SetItemData(item, item_data); if (cat) cat->items.push_back(item_data); } child = child->NextSiblingElement(); } }
PageInfo DjVuSource::ReadPageInfo(int nPage, bool bNeedText, bool bNeedAnno) { ASSERT(nPage >= 0 && nPage < m_nPageCount); PageInfo pageInfo; pageInfo.szPage.cx = 100; pageInfo.szPage.cy = 100; pageInfo.nDPI = 100; pageInfo.bDecoded = true; GP<ByteStream> pAnnoStream; if (bNeedAnno) pAnnoStream = ByteStream::create(); GP<ByteStream> pTextStream; if (bNeedText) pTextStream = ByteStream::create(); try { // Get raw data from the document and decode only requested chunks // DjVuFile is not used to ensure that we do not wait for a lock // to be released and thus do not block the UI thread GURL url = m_pDjVuDoc->page_to_url(nPage); GP<DataPool> pool = m_pDjVuDoc->request_data(NULL, url); GP<ByteStream> stream = pool->get_stream(); GP<IFFByteStream> iff(IFFByteStream::create(stream)); // Check file format GUTF8String chkid; if (!iff->get_chunk(chkid) || (chkid != "FORM:DJVI" && chkid != "FORM:DJVU" && chkid != "FORM:PM44" && chkid != "FORM:BM44")) { return pageInfo; } bool bHasIW44 = false; // Find chunk with page info while (iff->get_chunk(chkid) != 0) { GP<ByteStream> chunk_stream = iff->get_bytestream(); if (chkid == "INFO") { // Get page dimensions and resolution from info chunk GP<DjVuInfo> pInfo = DjVuInfo::create(); pInfo->decode(*chunk_stream); // Check data for consistency pageInfo.szPage.cx = max(pInfo->width, 0); pageInfo.szPage.cy = max(pInfo->height, 0); pageInfo.nInitialRotate = pInfo->orientation; pageInfo.nDPI = max(pInfo->dpi, 0); if ((pInfo->orientation & 1) != 0) swap(pageInfo.szPage.cx, pageInfo.szPage.cy); } else if (!bHasIW44 && (chkid == "PM44" || chkid == "BM44")) { bHasIW44 = true; // Get image dimensions and resolution from bitmap chunk UINT serial = chunk_stream->read8(); UINT slices = chunk_stream->read8(); UINT major = chunk_stream->read8(); UINT minor = chunk_stream->read8(); UINT xhi = chunk_stream->read8(); UINT xlo = chunk_stream->read8(); UINT yhi = chunk_stream->read8(); UINT ylo = chunk_stream->read8(); pageInfo.szPage.cx = (xhi << 8) | xlo; pageInfo.szPage.cy = (yhi << 8) | ylo; pageInfo.nDPI = 100; } else if (chkid == "TXTa" || chkid == "TXTz") { pageInfo.bHasText = true; if (bNeedText) { const GP<IFFByteStream> iffout = IFFByteStream::create(pTextStream); iffout->put_chunk(chkid); iffout->copy(*chunk_stream); iffout->close_chunk(); } } else if (bNeedAnno && chkid == "FORM:ANNO") { pAnnoStream->copy(*chunk_stream); } else if (bNeedAnno && (chkid == "ANTa" || chkid == "ANTz")) { const GP<IFFByteStream> iffout = IFFByteStream::create(pAnnoStream); iffout->put_chunk(chkid); iffout->copy(*chunk_stream); iffout->close_chunk(); } else if (bNeedAnno && chkid == "INCL") { set<GUTF8String> processed; ReadAnnotations(chunk_stream, processed, pAnnoStream); } iff->seek_close_chunk(); } if (bNeedText && pTextStream->tell()) pageInfo.DecodeText(pTextStream); if (bNeedAnno && pAnnoStream->tell()) pageInfo.DecodeAnno(pAnnoStream); } catch (GException&) { } catch (...) { if (pApplication != NULL) pApplication->ReportFatalError(); } return pageInfo; }