Chris@0: /* -*- c-basic-offset: 4 indent-tabs-mode: nil -*-  vi:set ts=8 sts=4 sw=4: */
Chris@0: 
Chris@0: /*
Chris@0:     Sonic Visualiser
Chris@0:     An audio file viewer and annotation editor.
Chris@0:     Centre for Digital Music, Queen Mary, University of London.
Chris@0:     This file copyright 2006 Chris Cannam.
Chris@0:     
Chris@0:     This program is free software; you can redistribute it and/or
Chris@0:     modify it under the terms of the GNU General Public License as
Chris@0:     published by the Free Software Foundation; either version 2 of the
Chris@0:     License, or (at your option) any later version.  See the file
Chris@0:     COPYING included with this distribution for more information.
Chris@0: */
Chris@0: 
Chris@0: #ifndef _SV_FILE_READER_H_
Chris@0: #define _SV_FILE_READER_H_
Chris@0: 
Chris@0: #include "layer/LayerFactory.h"
Chris@0: #include "transform/Transform.h"
Chris@30: #include "transform/PluginTransform.h"
Chris@0: 
Chris@0: #include <QXmlDefaultHandler>
Chris@0: 
Chris@0: #include <map>
Chris@0: 
Chris@0: class Pane;
Chris@0: class Model;
Chris@0: class Document;
Chris@0: class PlayParameters;
Chris@0: 
Chris@0: class SVFileReaderPaneCallback
Chris@0: {
Chris@0: public:
Chris@0:     virtual Pane *addPane() = 0;
Chris@0:     virtual void setWindowSize(int width, int height) = 0;
Chris@0:     virtual void addSelection(int start, int end) = 0;
Chris@0: };
Chris@0: 
Chris@0: class SVFileReader : public QXmlDefaultHandler
Chris@0: {
Chris@0: public:
Chris@0:     SVFileReader(Document *document,
Chris@0: 		 SVFileReaderPaneCallback &callback);
Chris@0:     virtual ~SVFileReader();
Chris@0: 
Chris@0:     void parse(const QString &xmlData);
Chris@0:     void parse(QXmlInputSource &source);
Chris@0: 
Chris@0:     bool isOK();
Chris@0:     QString getErrorString() const { return m_errorString; }
Chris@0: 
Chris@0:     // For loading a single layer onto an existing pane
Chris@0:     void setCurrentPane(Pane *pane) { m_currentPane = pane; }
Chris@0:     
Chris@0:     virtual bool startElement(const QString &namespaceURI,
Chris@0: 			      const QString &localName,
Chris@0: 			      const QString &qName,
Chris@0: 			      const QXmlAttributes& atts);
Chris@0: 
Chris@0:     virtual bool characters(const QString &);
Chris@0: 
Chris@0:     virtual bool endElement(const QString &namespaceURI,
Chris@0: 			    const QString &localName,
Chris@0: 			    const QString &qName);
Chris@0: 
Chris@0:     bool error(const QXmlParseException &exception);
Chris@0:     bool fatalError(const QXmlParseException &exception);
Chris@0: 
Chris@0: protected:
Chris@0:     bool readWindow(const QXmlAttributes &);
Chris@0:     bool readModel(const QXmlAttributes &);
Chris@0:     bool readView(const QXmlAttributes &);
Chris@0:     bool readLayer(const QXmlAttributes &);
Chris@0:     bool readDatasetStart(const QXmlAttributes &);
Chris@0:     bool addBinToDataset(const QXmlAttributes &);
Chris@0:     bool addPointToDataset(const QXmlAttributes &);
Chris@0:     bool addRowToDataset(const QXmlAttributes &);
Chris@0:     bool readRowData(const QString &);
Chris@0:     bool readDerivation(const QXmlAttributes &);
Chris@0:     bool readPlayParameters(const QXmlAttributes &);
Chris@0:     bool readPlugin(const QXmlAttributes &);
Chris@0:     bool readSelection(const QXmlAttributes &);
Chris@0:     void addUnaddedModels();
Chris@0: 
Chris@0:     Document *m_document;
Chris@0:     SVFileReaderPaneCallback &m_paneCallback;
Chris@0:     Pane *m_currentPane;
Chris@0:     std::map<int, Layer *> m_layers;
Chris@0:     std::map<int, Model *> m_models;
Chris@0:     std::set<Model *> m_addedModels;
Chris@0:     std::map<int, int> m_awaitingDatasets; // map dataset id -> model id
Chris@0:     Model *m_currentDataset;
Chris@0:     Model *m_currentDerivedModel;
Chris@0:     PlayParameters *m_currentPlayParameters;
Chris@0:     QString m_currentTransform;
Chris@30:     PluginTransform::ExecutionContext m_currentTransformContext;
Chris@0:     QString m_currentTransformConfiguration;
Chris@0:     QString m_datasetSeparator;
Chris@0:     bool m_inRow;
Chris@0:     bool m_inView;
Chris@0:     bool m_inData;
Chris@0:     bool m_inSelections;
Chris@0:     int m_rowNumber;
Chris@0:     QString m_errorString;
Chris@0:     bool m_ok;
Chris@0: };
Chris@0: 
Chris@0: #endif