annotate data/fileio/SVFileReader.h @ 207:8ee6cf529c4e

* Further fix for restoring layer visibility from session file * Better handling of error state in bzip file device to avoid spurious errors * Fix #1495001 deleted layers prevail in saved session file
author Chris Cannam
date Fri, 05 Jan 2007 15:49:10 +0000
parents 1a42221a1522
children
rev   line source
Chris@148 1 /* -*- c-basic-offset: 4 indent-tabs-mode: nil -*- vi:set ts=8 sts=4 sw=4: */
Chris@148 2
Chris@148 3 /*
Chris@148 4 Sonic Visualiser
Chris@148 5 An audio file viewer and annotation editor.
Chris@148 6 Centre for Digital Music, Queen Mary, University of London.
Chris@148 7 This file copyright 2006 Chris Cannam.
Chris@148 8
Chris@148 9 This program is free software; you can redistribute it and/or
Chris@148 10 modify it under the terms of the GNU General Public License as
Chris@148 11 published by the Free Software Foundation; either version 2 of the
Chris@148 12 License, or (at your option) any later version. See the file
Chris@148 13 COPYING included with this distribution for more information.
Chris@148 14 */
Chris@148 15
Chris@148 16 #ifndef _SV_FILE_READER_H_
Chris@148 17 #define _SV_FILE_READER_H_
Chris@148 18
Chris@148 19 #include "layer/LayerFactory.h"
Chris@148 20 #include "transform/Transform.h"
Chris@148 21
Chris@148 22 #include <QXmlDefaultHandler>
Chris@148 23
Chris@148 24 #include <map>
Chris@148 25
Chris@148 26 class Pane;
Chris@148 27 class Model;
Chris@148 28 class Document;
Chris@148 29 class PlayParameters;
Chris@148 30
Chris@148 31 class SVFileReaderPaneCallback
Chris@148 32 {
Chris@148 33 public:
Chris@148 34 virtual Pane *addPane() = 0;
Chris@148 35 virtual void setWindowSize(int width, int height) = 0;
Chris@148 36 virtual void addSelection(int start, int end) = 0;
Chris@148 37 };
Chris@148 38
Chris@148 39 class SVFileReader : public QXmlDefaultHandler
Chris@148 40 {
Chris@148 41 public:
Chris@148 42 SVFileReader(Document *document,
Chris@148 43 SVFileReaderPaneCallback &callback);
Chris@148 44 virtual ~SVFileReader();
Chris@148 45
Chris@148 46 void parse(const QString &xmlData);
Chris@148 47 void parse(QXmlInputSource &source);
Chris@148 48
Chris@148 49 bool isOK();
Chris@148 50 QString getErrorString() const { return m_errorString; }
Chris@148 51
Chris@148 52 // For loading a single layer onto an existing pane
Chris@148 53 void setCurrentPane(Pane *pane) { m_currentPane = pane; }
Chris@148 54
Chris@148 55 virtual bool startElement(const QString &namespaceURI,
Chris@148 56 const QString &localName,
Chris@148 57 const QString &qName,
Chris@148 58 const QXmlAttributes& atts);
Chris@148 59
Chris@148 60 virtual bool characters(const QString &);
Chris@148 61
Chris@148 62 virtual bool endElement(const QString &namespaceURI,
Chris@148 63 const QString &localName,
Chris@148 64 const QString &qName);
Chris@148 65
Chris@148 66 bool error(const QXmlParseException &exception);
Chris@148 67 bool fatalError(const QXmlParseException &exception);
Chris@148 68
Chris@148 69 protected:
Chris@148 70 bool readWindow(const QXmlAttributes &);
Chris@148 71 bool readModel(const QXmlAttributes &);
Chris@148 72 bool readView(const QXmlAttributes &);
Chris@148 73 bool readLayer(const QXmlAttributes &);
Chris@148 74 bool readDatasetStart(const QXmlAttributes &);
Chris@148 75 bool addBinToDataset(const QXmlAttributes &);
Chris@148 76 bool addPointToDataset(const QXmlAttributes &);
Chris@148 77 bool addRowToDataset(const QXmlAttributes &);
Chris@148 78 bool readRowData(const QString &);
Chris@148 79 bool readDerivation(const QXmlAttributes &);
Chris@148 80 bool readPlayParameters(const QXmlAttributes &);
Chris@148 81 bool readPlugin(const QXmlAttributes &);
Chris@148 82 bool readSelection(const QXmlAttributes &);
Chris@148 83 void addUnaddedModels();
Chris@148 84
Chris@148 85 Document *m_document;
Chris@148 86 SVFileReaderPaneCallback &m_paneCallback;
Chris@148 87 Pane *m_currentPane;
Chris@148 88 std::map<int, Layer *> m_layers;
Chris@148 89 std::map<int, Model *> m_models;
Chris@148 90 std::set<Model *> m_addedModels;
Chris@148 91 std::map<int, int> m_awaitingDatasets; // map dataset id -> model id
Chris@148 92 Model *m_currentDataset;
Chris@148 93 Model *m_currentDerivedModel;
Chris@148 94 PlayParameters *m_currentPlayParameters;
Chris@148 95 QString m_currentTransform;
Chris@148 96 int m_currentTransformChannel;
Chris@148 97 QString m_currentTransformConfiguration;
Chris@148 98 QString m_datasetSeparator;
Chris@148 99 bool m_inRow;
Chris@148 100 bool m_inView;
Chris@148 101 bool m_inData;
Chris@148 102 bool m_inSelections;
Chris@148 103 int m_rowNumber;
Chris@148 104 QString m_errorString;
Chris@148 105 bool m_ok;
Chris@148 106 };
Chris@148 107
Chris@148 108 #endif