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@77:     This file copyright 2006 Chris Cannam and QMUL.
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: #include "SVFileReader.h"
Chris@0: 
Chris@1: #include "layer/Layer.h"
Chris@1: #include "view/View.h"
Chris@0: #include "base/PlayParameters.h"
Chris@0: #include "base/PlayParameterRepository.h"
Chris@0: 
Chris@1: #include "data/fileio/AudioFileReaderFactory.h"
Chris@87: #include "data/fileio/FileFinder.h"
Chris@87: #include "data/fileio/RemoteFile.h"
Chris@0: 
Chris@1: #include "data/model/WaveFileModel.h"
Chris@3: #include "data/model/EditableDenseThreeDimensionalModel.h"
Chris@1: #include "data/model/SparseOneDimensionalModel.h"
Chris@1: #include "data/model/SparseTimeValueModel.h"
Chris@1: #include "data/model/NoteModel.h"
Chris@1: #include "data/model/TextModel.h"
Chris@0: 
Chris@1: #include "view/Pane.h"
Chris@0: 
Chris@1: #include "Document.h"
Chris@0: 
Chris@0: #include <QString>
Chris@0: #include <QMessageBox>
Chris@0: #include <QFileDialog>
Chris@0: 
Chris@0: #include <iostream>
Chris@0: 
Chris@55: /*
Chris@55:     Some notes about the SV XML format.  We're very lazy with our XML:
Chris@55:     there's no schema or DTD, and we depend heavily on elements being
Chris@55:     in a particular order.
Chris@55:  
Chris@55:     <sv>
Chris@55: 
Chris@55:     <data>
Chris@55: 
Chris@55:       <!-- The data section contains definitions of both models and
Chris@55:            visual layers.  Layers are considered data in the document;
Chris@55:            the structure of views that displays the layers is not. -->
Chris@55: 
Chris@55:       <!-- id numbers are unique within the data type (i.e. no two
Chris@55:            models can have the same id, but a model can have the same
Chris@55:            id as a layer, etc).  SV generates its id numbers just for
Chris@55:            the purpose of cross-referencing within the current file;
Chris@55:            they don't necessarily have any meaning once the file has
Chris@55:            been loaded. -->
Chris@55: 
Chris@55:       <model id="0" name="..." type="..." ... />
Chris@55:       <model id="1" name="..." type="..." ... />
Chris@55: 
Chris@55:       <!-- Models that have data associated with them store it
Chris@55:            in a neighbouring dataset element.  The dataset must follow
Chris@55:            the model and precede any derivation or layer elements that
Chris@55:            refer to the model. -->
Chris@55: 
Chris@55:       <model id="2" name="..." type="..." dataset="0" ... />
Chris@55: 
Chris@55:       <dataset id="0" type="..."> 
Chris@55:         <point frame="..." value="..." ... />
Chris@55:       </dataset>
Chris@55: 
Chris@55:       <!-- Where one model is derived from another via a transform,
Chris@55:            it has an associated derivation element.  This must follow
Chris@55:            both the source and target model elements.  The source and
Chris@55:            model attributes give the source model id and target model
Chris@55:            id respectively.  A model can have both dataset and
Chris@55:            derivation elements; if it does, dataset must appear first. 
Chris@55:            If the model's data are not stored, but instead the model
Chris@55:            is to be regenerated completely from the transform when 
Chris@55:            the session is reloaded, then the model should have _only_
Chris@55:            a derivation element, and no model element should appear
Chris@55:            for it at all. -->
Chris@55: 
Chris@55:       <derivation source="0" model="2" transform="..." ...>
Chris@55:         <plugin id="..." ... />
Chris@55:       </derivation>
Chris@55: 
Chris@55:       <!-- The playparameters element lists playback settings for
Chris@55:            a model. -->
Chris@55: 
Chris@55:       <playparameters mute="false" pan="0" gain="1" model="1" ... />
Chris@55: 
Chris@55:       <!-- Layer elements.  The models must have already been defined.
Chris@55:            The same model may appear in more than one layer (of more
Chris@55:            than one type). -->
Chris@55: 
Chris@55:       <layer id="1" type="..." name="..." model="0" ... />
Chris@55:       <layer id="2" type="..." name="..." model="1" ... />
Chris@55: 
Chris@55:     </data>
Chris@55: 
Chris@55: 
Chris@55:     <display>
Chris@55: 
Chris@55:       <!-- The display element contains visual structure for the
Chris@55:            layers.  It's simpler than the data section. -->
Chris@55: 
Chris@55:       <!-- Overall preferred window size for this session. -->
Chris@55: 
Chris@55:       <window width="..." height="..."/>
Chris@55: 
Chris@55:       <!-- List of view elements to stack up.  Each one contains
Chris@55:            a list of layers in stacking order, back to front. -->
Chris@55: 
Chris@55:       <view type="pane" ...>
Chris@55:         <layer id="1"/>
Chris@55:         <layer id="2"/>
Chris@55:       </view>
Chris@55: 
Chris@55:       <!-- The layer elements just refer to layers defined in the
Chris@55:            data section, so they don't have to have any attributes
Chris@55:            other than the id.  For sort-of-historical reasons SV
Chris@55:            actually does repeat the other attributes here, but
Chris@55:            it doesn't need to. -->
Chris@55: 
Chris@55:       <view type="pane" ...>
Chris@55:         <layer id="2"/>
Chris@55:       <view>
Chris@55: 
Chris@55:     </display>
Chris@55: 
Chris@55: 
Chris@55:     <!-- List of selected regions by audio frame extents. -->
Chris@55: 
Chris@55:     <selections>
Chris@55:       <selection start="..." end="..."/>
Chris@55:     </selections>
Chris@55: 
Chris@55: 
Chris@55:     </sv>
Chris@55:  
Chris@55:  */
Chris@55: 
Chris@55: 
Chris@0: SVFileReader::SVFileReader(Document *document,
Chris@87: 			   SVFileReaderPaneCallback &callback,
Chris@87:                            QString location) :
Chris@0:     m_document(document),
Chris@0:     m_paneCallback(callback),
Chris@87:     m_location(location),
Chris@0:     m_currentPane(0),
Chris@0:     m_currentDataset(0),
Chris@0:     m_currentDerivedModel(0),
Chris@55:     m_currentDerivedModelId(-1),
Chris@0:     m_currentPlayParameters(0),
Chris@0:     m_datasetSeparator(" "),
Chris@0:     m_inRow(false),
Chris@0:     m_rowNumber(0),
Chris@0:     m_ok(false)
Chris@0: {
Chris@0: }
Chris@0: 
Chris@0: void
Chris@0: SVFileReader::parse(const QString &xmlData)
Chris@0: {
Chris@0:     QXmlInputSource inputSource;
Chris@0:     inputSource.setData(xmlData);
Chris@0:     parse(inputSource);
Chris@0: }
Chris@0: 
Chris@0: void
Chris@0: SVFileReader::parse(QXmlInputSource &inputSource)
Chris@0: {
Chris@0:     QXmlSimpleReader reader;
Chris@0:     reader.setContentHandler(this);
Chris@0:     reader.setErrorHandler(this);
Chris@0:     m_ok = reader.parse(inputSource);
Chris@0: }    
Chris@0: 
Chris@0: bool
Chris@0: SVFileReader::isOK()
Chris@0: {
Chris@0:     return m_ok;
Chris@0: }
Chris@0: 	
Chris@0: SVFileReader::~SVFileReader()
Chris@0: {
Chris@0:     if (!m_awaitingDatasets.empty()) {
Chris@0: 	std::cerr << "WARNING: SV-XML: File ended with "
Chris@0: 		  << m_awaitingDatasets.size() << " unfilled model dataset(s)"
Chris@0: 		  << std::endl;
Chris@0:     }
Chris@0: 
Chris@0:     std::set<Model *> unaddedModels;
Chris@0: 
Chris@0:     for (std::map<int, Model *>::iterator i = m_models.begin();
Chris@0: 	 i != m_models.end(); ++i) {
Chris@0: 	if (m_addedModels.find(i->second) == m_addedModels.end()) {
Chris@0: 	    unaddedModels.insert(i->second);
Chris@0: 	}
Chris@0:     }
Chris@0: 
Chris@0:     if (!unaddedModels.empty()) {
Chris@0: 	std::cerr << "WARNING: SV-XML: File contained "
Chris@0: 		  << unaddedModels.size() << " unused models"
Chris@0: 		  << std::endl;
Chris@0: 	while (!unaddedModels.empty()) {
Chris@0: 	    delete *unaddedModels.begin();
Chris@0: 	    unaddedModels.erase(unaddedModels.begin());
Chris@0: 	}
Chris@0:     }	
Chris@0: }
Chris@0: 
Chris@0: bool
Chris@0: SVFileReader::startElement(const QString &, const QString &,
Chris@0: 			   const QString &qName,
Chris@0: 			   const QXmlAttributes &attributes)
Chris@0: {
Chris@0:     QString name = qName.toLower();
Chris@0: 
Chris@0:     bool ok = false;
Chris@0: 
Chris@0:     // Valid element names:
Chris@0:     //
Chris@0:     // sv
Chris@0:     // data
Chris@0:     // dataset
Chris@0:     // display
Chris@0:     // derivation
Chris@0:     // playparameters
Chris@0:     // layer
Chris@0:     // model
Chris@0:     // point
Chris@0:     // row
Chris@0:     // view
Chris@0:     // window
Chris@0: 
Chris@0:     if (name == "sv") {
Chris@0: 
Chris@0: 	// nothing needed
Chris@0: 	ok = true;
Chris@0: 
Chris@0:     } else if (name == "data") {
Chris@0: 
Chris@0: 	// nothing needed
Chris@0: 	m_inData = true;
Chris@0: 	ok = true;
Chris@0: 
Chris@0:     } else if (name == "display") {
Chris@0: 
Chris@0: 	// nothing needed
Chris@0: 	ok = true;
Chris@0: 
Chris@0:     } else if (name == "window") {
Chris@0: 
Chris@0: 	ok = readWindow(attributes);
Chris@0: 
Chris@0:     } else if (name == "model") {
Chris@0: 
Chris@0: 	ok = readModel(attributes);
Chris@0:     
Chris@0:     } else if (name == "dataset") {
Chris@0: 	
Chris@0: 	ok = readDatasetStart(attributes);
Chris@0: 
Chris@0:     } else if (name == "bin") {
Chris@0: 	
Chris@0: 	ok = addBinToDataset(attributes);
Chris@0:     
Chris@0:     } else if (name == "point") {
Chris@0: 	
Chris@0: 	ok = addPointToDataset(attributes);
Chris@0: 
Chris@0:     } else if (name == "row") {
Chris@0: 
Chris@0: 	ok = addRowToDataset(attributes);
Chris@0: 
Chris@0:     } else if (name == "layer") {
Chris@0: 
Chris@0:         addUnaddedModels(); // all models must be specified before first layer
Chris@0: 	ok = readLayer(attributes);
Chris@0: 
Chris@0:     } else if (name == "view") {
Chris@0: 
Chris@0: 	m_inView = true;
Chris@0: 	ok = readView(attributes);
Chris@0: 
Chris@0:     } else if (name == "derivation") {
Chris@0: 
Chris@0: 	ok = readDerivation(attributes);
Chris@0: 
Chris@0:     } else if (name == "playparameters") {
Chris@0:         
Chris@0:         ok = readPlayParameters(attributes);
Chris@0: 
Chris@0:     } else if (name == "plugin") {
Chris@0: 
Chris@0: 	ok = readPlugin(attributes);
Chris@0: 
Chris@0:     } else if (name == "selections") {
Chris@0: 
Chris@0: 	m_inSelections = true;
Chris@0: 	ok = true;
Chris@0: 
Chris@0:     } else if (name == "selection") {
Chris@0: 
Chris@0: 	ok = readSelection(attributes);
Chris@0:     }
Chris@0: 
Chris@0:     if (!ok) {
Chris@0: 	std::cerr << "WARNING: SV-XML: Failed to completely process element \""
Chris@0: 		  << name.toLocal8Bit().data() << "\"" << std::endl;
Chris@0:     }
Chris@0: 
Chris@0:     return true;
Chris@0: }
Chris@0: 
Chris@0: bool
Chris@0: SVFileReader::characters(const QString &text)
Chris@0: {
Chris@0:     bool ok = false;
Chris@0: 
Chris@0:     if (m_inRow) {
Chris@0: 	ok = readRowData(text);
Chris@0: 	if (!ok) {
Chris@0: 	    std::cerr << "WARNING: SV-XML: Failed to read row data content for row " << m_rowNumber << std::endl;
Chris@0: 	}
Chris@0:     }
Chris@0: 
Chris@0:     return true;
Chris@0: }
Chris@0: 
Chris@0: bool
Chris@0: SVFileReader::endElement(const QString &, const QString &,
Chris@0: 			 const QString &qName)
Chris@0: {
Chris@0:     QString name = qName.toLower();
Chris@0: 
Chris@0:     if (name == "dataset") {
Chris@0: 
Chris@0: 	if (m_currentDataset) {
Chris@0: 	    
Chris@0: 	    bool foundInAwaiting = false;
Chris@0: 
Chris@0: 	    for (std::map<int, int>::iterator i = m_awaitingDatasets.begin();
Chris@0: 		 i != m_awaitingDatasets.end(); ++i) {
Chris@0: 		if (m_models[i->second] == m_currentDataset) {
Chris@0: 		    m_awaitingDatasets.erase(i);
Chris@0: 		    foundInAwaiting = true;
Chris@0: 		    break;
Chris@0: 		}
Chris@0: 	    }
Chris@0: 
Chris@0: 	    if (!foundInAwaiting) {
Chris@0: 		std::cerr << "WARNING: SV-XML: Dataset precedes model, or no model uses dataset" << std::endl;
Chris@0: 	    }
Chris@0: 	}
Chris@0: 
Chris@0: 	m_currentDataset = 0;
Chris@0: 
Chris@0:     } else if (name == "data") {
Chris@0: 
Chris@0:         addUnaddedModels();
Chris@0: 	m_inData = false;
Chris@0: 
Chris@0:     } else if (name == "derivation") {
Chris@55: 
Chris@55:         if (!m_currentDerivedModel) {
Chris@55:             if (m_currentDerivedModel < 0) {
Chris@55:                 std::cerr << "WARNING: SV-XML: Bad derivation output model id "
Chris@55:                           << m_currentDerivedModelId << std::endl;
Chris@55:             } else if (m_models[m_currentDerivedModelId]) {
Chris@55:                 std::cerr << "WARNING: SV-XML: Derivation has existing model "
Chris@55:                           << m_currentDerivedModelId
Chris@55:                           << " as target, not regenerating" << std::endl;
Chris@55:             } else {
Chris@55:                 m_currentDerivedModel = m_models[m_currentDerivedModelId] =
Chris@55:                     m_document->addDerivedModel(m_currentTransform,
Chris@55:                                                 m_currentTransformSource,
Chris@55:                                                 m_currentTransformContext,
Chris@55:                                                 m_currentTransformConfiguration);
Chris@55:             }
Chris@55:         } else {
Chris@0:             m_document->addDerivedModel(m_currentTransform,
Chris@55:                                         m_currentTransformSource,
Chris@30:                                         m_currentTransformContext,
Chris@0:                                         m_currentDerivedModel,
Chris@0:                                         m_currentTransformConfiguration);
Chris@0:         }
Chris@0: 
Chris@55:         m_addedModels.insert(m_currentDerivedModel);
Chris@55:         m_currentDerivedModel = 0;
Chris@55:         m_currentDerivedModelId = -1;
Chris@55:         m_currentTransform = "";
Chris@55:         m_currentTransformConfiguration = "";
Chris@55: 
Chris@0:     } else if (name == "row") {
Chris@0: 	m_inRow = false;
Chris@0:     } else if (name == "view") {
Chris@0: 	m_inView = false;
Chris@0:     } else if (name == "selections") {
Chris@0: 	m_inSelections = false;
Chris@0:     } else if (name == "playparameters") {
Chris@0:         m_currentPlayParameters = 0;
Chris@0:     }
Chris@0: 
Chris@0:     return true;
Chris@0: }
Chris@0: 
Chris@0: bool
Chris@0: SVFileReader::error(const QXmlParseException &exception)
Chris@0: {
Chris@0:     m_errorString =
Chris@0: 	QString("ERROR: SV-XML: %1 at line %2, column %3")
Chris@0: 	.arg(exception.message())
Chris@0: 	.arg(exception.lineNumber())
Chris@0: 	.arg(exception.columnNumber());
Chris@0:     std::cerr << m_errorString.toLocal8Bit().data() << std::endl;
Chris@0:     return QXmlDefaultHandler::error(exception);
Chris@0: }
Chris@0: 
Chris@0: bool
Chris@0: SVFileReader::fatalError(const QXmlParseException &exception)
Chris@0: {
Chris@0:     m_errorString =
Chris@0: 	QString("FATAL ERROR: SV-XML: %1 at line %2, column %3")
Chris@0: 	.arg(exception.message())
Chris@0: 	.arg(exception.lineNumber())
Chris@0: 	.arg(exception.columnNumber());
Chris@0:     std::cerr << m_errorString.toLocal8Bit().data() << std::endl;
Chris@0:     return QXmlDefaultHandler::fatalError(exception);
Chris@0: }
Chris@0: 
Chris@0: 
Chris@0: #define READ_MANDATORY(TYPE, NAME, CONVERSION)		      \
Chris@0:     TYPE NAME = attributes.value(#NAME).trimmed().CONVERSION(&ok); \
Chris@0:     if (!ok) { \
Chris@0: 	std::cerr << "WARNING: SV-XML: Missing or invalid mandatory " #TYPE " attribute \"" #NAME "\"" << std::endl; \
Chris@0: 	return false; \
Chris@0:     }
Chris@0: 
Chris@0: bool
Chris@0: SVFileReader::readWindow(const QXmlAttributes &attributes)
Chris@0: {
Chris@0:     bool ok = false;
Chris@0: 
Chris@0:     READ_MANDATORY(int, width, toInt);
Chris@0:     READ_MANDATORY(int, height, toInt);
Chris@0: 
Chris@0:     m_paneCallback.setWindowSize(width, height);
Chris@0:     return true;
Chris@0: }
Chris@0: 
Chris@0: void
Chris@0: SVFileReader::addUnaddedModels()
Chris@0: {
Chris@0:     std::set<Model *> unaddedModels;
Chris@0:     
Chris@0:     for (std::map<int, Model *>::iterator i = m_models.begin();
Chris@0:          i != m_models.end(); ++i) {
Chris@0:         if (m_addedModels.find(i->second) == m_addedModels.end()) {
Chris@0:             unaddedModels.insert(i->second);
Chris@0:         }
Chris@0:     }
Chris@0:     
Chris@0:     for (std::set<Model *>::iterator i = unaddedModels.begin();
Chris@0:          i != unaddedModels.end(); ++i) {
Chris@0:         m_document->addImportedModel(*i);
Chris@0:         m_addedModels.insert(*i);
Chris@0:     }
Chris@0: }
Chris@0: 
Chris@0: bool
Chris@0: SVFileReader::readModel(const QXmlAttributes &attributes)
Chris@0: {
Chris@0:     bool ok = false;
Chris@0: 
Chris@0:     READ_MANDATORY(int, id, toInt);
Chris@0: 
Chris@0:     if (m_models.find(id) != m_models.end()) {
Chris@0: 	std::cerr << "WARNING: SV-XML: Ignoring duplicate model id " << id
Chris@0: 		  << std::endl;
Chris@0: 	return false;
Chris@0:     }
Chris@0: 
Chris@0:     QString name = attributes.value("name");
Chris@0: 
Chris@0:     READ_MANDATORY(int, sampleRate, toInt);
Chris@0: 
Chris@0:     QString type = attributes.value("type").trimmed();
Chris@0:     bool mainModel = (attributes.value("mainModel").trimmed() == "true");
Chris@55: 
Chris@0:     if (type == "wavefile") {
Chris@0: 	
Chris@87:         WaveFileModel *model = 0;
Chris@88:         FileFinder *ff = FileFinder::getInstance();
Chris@88:         QString originalPath = attributes.value("file");
Chris@88:         QString path = ff->find(FileFinder::AudioFile,
Chris@88:                                 originalPath, m_location);
Chris@87:         QUrl url(path);
Chris@87: 
Chris@87:         if (RemoteFile::canHandleScheme(url)) {
Chris@87: 
Chris@87:             RemoteFile rf(url);
Chris@87:             rf.wait();
Chris@87: 
Chris@87:             if (rf.isOK()) {
Chris@88: 
Chris@88:                 model = new WaveFileModel(rf.getLocalFilename(), path);
Chris@87:                 if (!model->isOK()) {
Chris@87:                     delete model;
Chris@87:                     model = 0;
Chris@87:                     //!!! and delete local file?
Chris@87:                 }
Chris@87:             }
Chris@87:         } else {
Chris@87: 
Chris@87:             model = new WaveFileModel(path);
Chris@87:             if (!model->isOK()) {
Chris@87:                 delete model;
Chris@87:                 model = 0;
Chris@87:             }
Chris@87:         }
Chris@87: 
Chris@87:         if (!model) return false;
Chris@87: 
Chris@0: 	m_models[id] = model;
Chris@0: 	if (mainModel) {
Chris@0: 	    m_document->setMainModel(model);
Chris@0: 	    m_addedModels.insert(model);
Chris@0: 	}
Chris@0: 	// Derived models will be added when their derivation
Chris@0: 	// is found.
Chris@0: 
Chris@0: 	return true;
Chris@0: 
Chris@0:     } else if (type == "dense") {
Chris@0: 	
Chris@0: 	READ_MANDATORY(int, dimensions, toInt);
Chris@0: 		    
Chris@55: 	// Currently the only dense model we support here is the dense
Chris@55: 	// 3d model.  Dense time-value models are always file-backed
Chris@55: 	// waveform data, at this point, and they come in as wavefile
Chris@55: 	// models.
Chris@0: 	
Chris@0: 	if (dimensions == 3) {
Chris@0: 	    
Chris@0: 	    READ_MANDATORY(int, windowSize, toInt);
Chris@0: 	    READ_MANDATORY(int, yBinCount, toInt);
Chris@0: 	    
Chris@3:             EditableDenseThreeDimensionalModel *model =
Chris@3: 		new EditableDenseThreeDimensionalModel
Chris@3:                 (sampleRate, windowSize, yBinCount);
Chris@0: 	    
Chris@0: 	    float minimum = attributes.value("minimum").trimmed().toFloat(&ok);
Chris@0: 	    if (ok) model->setMinimumLevel(minimum);
Chris@0: 	    
Chris@0: 	    float maximum = attributes.value("maximum").trimmed().toFloat(&ok);
Chris@0: 	    if (ok) model->setMaximumLevel(maximum);
Chris@0: 
Chris@0: 	    int dataset = attributes.value("dataset").trimmed().toInt(&ok);
Chris@0: 	    if (ok) m_awaitingDatasets[dataset] = id;
Chris@0: 
Chris@0: 	    m_models[id] = model;
Chris@0: 	    return true;
Chris@0: 
Chris@0: 	} else {
Chris@0: 
Chris@0: 	    std::cerr << "WARNING: SV-XML: Unexpected dense model dimension ("
Chris@0: 		      << dimensions << ")" << std::endl;
Chris@0: 	}
Chris@0:     } else if (type == "sparse") {
Chris@0: 
Chris@0: 	READ_MANDATORY(int, dimensions, toInt);
Chris@0: 		  
Chris@0: 	if (dimensions == 1) {
Chris@0: 	    
Chris@0: 	    READ_MANDATORY(int, resolution, toInt);
Chris@0: 
Chris@0: 	    SparseOneDimensionalModel *model = new SparseOneDimensionalModel
Chris@0: 		(sampleRate, resolution);
Chris@0: 	    m_models[id] = model;
Chris@0: 
Chris@0: 	    int dataset = attributes.value("dataset").trimmed().toInt(&ok);
Chris@0: 	    if (ok) m_awaitingDatasets[dataset] = id;
Chris@0: 
Chris@0: 	    return true;
Chris@0: 
Chris@0: 	} else if (dimensions == 2 || dimensions == 3) {
Chris@0: 	    
Chris@0: 	    READ_MANDATORY(int, resolution, toInt);
Chris@0: 
Chris@0: 	    float minimum = attributes.value("minimum").trimmed().toFloat(&ok);
Chris@0: 	    float maximum = attributes.value("maximum").trimmed().toFloat(&ok);
Chris@0: 	    float valueQuantization =
Chris@0: 		attributes.value("valueQuantization").trimmed().toFloat(&ok);
Chris@0: 
Chris@0: 	    bool notifyOnAdd = (attributes.value("notifyOnAdd") == "true");
Chris@0: 
Chris@0:             QString units = attributes.value("units");
Chris@0: 
Chris@0: 	    if (dimensions == 2) {
Chris@0: 		if (attributes.value("subtype") == "text") {
Chris@0: 		    TextModel *model = new TextModel
Chris@0: 			(sampleRate, resolution, notifyOnAdd);
Chris@0: 		    m_models[id] = model;
Chris@0: 		} else {
Chris@0: 		    SparseTimeValueModel *model = new SparseTimeValueModel
Chris@0: 			(sampleRate, resolution, minimum, maximum, notifyOnAdd);
Chris@0:                     model->setScaleUnits(units);
Chris@0: 		    m_models[id] = model;
Chris@0: 		}
Chris@0: 	    } else {
Chris@0: 		NoteModel *model = new NoteModel
Chris@0: 		    (sampleRate, resolution, minimum, maximum, notifyOnAdd);
Chris@0: 		model->setValueQuantization(valueQuantization);
Chris@0:                 model->setScaleUnits(units);
Chris@0: 		m_models[id] = model;
Chris@0: 	    }
Chris@0: 
Chris@0: 	    int dataset = attributes.value("dataset").trimmed().toInt(&ok);
Chris@0: 	    if (ok) m_awaitingDatasets[dataset] = id;
Chris@0: 
Chris@0: 	    return true;
Chris@0: 
Chris@0: 	} else {
Chris@0: 
Chris@0: 	    std::cerr << "WARNING: SV-XML: Unexpected sparse model dimension ("
Chris@0: 		      << dimensions << ")" << std::endl;
Chris@0: 	}
Chris@0:     } else {
Chris@0: 
Chris@0: 	std::cerr << "WARNING: SV-XML: Unexpected model type \""
Chris@88: 		  << type.toLocal8Bit().data() << "\" for model id " << id << std::endl;
Chris@0:     }
Chris@0: 
Chris@0:     return false;
Chris@0: }
Chris@0: 
Chris@0: bool
Chris@0: SVFileReader::readView(const QXmlAttributes &attributes)
Chris@0: {
Chris@0:     QString type = attributes.value("type");
Chris@0:     m_currentPane = 0;
Chris@0:     
Chris@0:     if (type != "pane") {
Chris@0: 	std::cerr << "WARNING: SV-XML: Unexpected view type \""
Chris@0: 		  << type.toLocal8Bit().data() << "\"" << std::endl;
Chris@0: 	return false;
Chris@0:     }
Chris@0: 
Chris@0:     m_currentPane = m_paneCallback.addPane();
Chris@0: 
Chris@0:     if (!m_currentPane) {
Chris@0: 	std::cerr << "WARNING: SV-XML: Internal error: Failed to add pane!"
Chris@0: 		  << std::endl;
Chris@0: 	return false;
Chris@0:     }
Chris@0: 
Chris@0:     bool ok = false;
Chris@0: 
Chris@0:     View *view = m_currentPane;
Chris@0: 
Chris@0:     // The view properties first
Chris@0: 
Chris@0:     READ_MANDATORY(size_t, centre, toUInt);
Chris@0:     READ_MANDATORY(size_t, zoom, toUInt);
Chris@0:     READ_MANDATORY(int, followPan, toInt);
Chris@0:     READ_MANDATORY(int, followZoom, toInt);
Chris@0:     QString tracking = attributes.value("tracking");
Chris@0: 
Chris@0:     // Specify the follow modes before we set the actual values
Chris@0:     view->setFollowGlobalPan(followPan);
Chris@0:     view->setFollowGlobalZoom(followZoom);
Chris@109:     view->setPlaybackFollow(tracking == "scroll" ? PlaybackScrollContinuous :
Chris@109: 			    tracking == "page" ? PlaybackScrollPage
Chris@109: 			    : PlaybackIgnore);
Chris@0: 
Chris@0:     // Then set these values
Chris@0:     view->setCentreFrame(centre);
Chris@0:     view->setZoomLevel(zoom);
Chris@0: 
Chris@0:     // And pane properties
Chris@0:     READ_MANDATORY(int, centreLineVisible, toInt);
Chris@0:     m_currentPane->setCentreLineVisible(centreLineVisible);
Chris@0: 
Chris@0:     int height = attributes.value("height").toInt(&ok);
Chris@0:     if (ok) {
Chris@0: 	m_currentPane->resize(m_currentPane->width(), height);
Chris@0:     }
Chris@0: 
Chris@0:     return true;
Chris@0: }
Chris@0: 
Chris@0: bool
Chris@0: SVFileReader::readLayer(const QXmlAttributes &attributes)
Chris@0: {
Chris@0:     QString type = attributes.value("type");
Chris@0: 
Chris@0:     int id;
Chris@0:     bool ok = false;
Chris@0:     id = attributes.value("id").trimmed().toInt(&ok);
Chris@0: 
Chris@0:     if (!ok) {
Chris@0: 	std::cerr << "WARNING: SV-XML: No layer id for layer of type \""
Chris@0: 		  << type.toLocal8Bit().data()
Chris@0: 		  << "\"" << std::endl;
Chris@0: 	return false;
Chris@0:     }
Chris@0: 
Chris@0:     Layer *layer = 0;
Chris@0:     bool isNewLayer = false;
Chris@0: 
Chris@0:     // Layers are expected to be defined in layer elements in the data
Chris@0:     // section, and referred to in layer elements in the view
Chris@0:     // sections.  So if we're in the data section, we expect this
Chris@0:     // layer not to exist already; if we're in the view section, we
Chris@0:     // expect it to exist.
Chris@0: 
Chris@0:     if (m_inData) {
Chris@0: 
Chris@0: 	if (m_layers.find(id) != m_layers.end()) {
Chris@0: 	    std::cerr << "WARNING: SV-XML: Ignoring duplicate layer id " << id
Chris@0: 		      << " in data section" << std::endl;
Chris@0: 	    return false;
Chris@0: 	}
Chris@0: 
Chris@0: 	layer = m_layers[id] = m_document->createLayer
Chris@0: 	    (LayerFactory::getInstance()->getLayerTypeForName(type));
Chris@0: 
Chris@0: 	if (layer) {
Chris@0: 	    m_layers[id] = layer;
Chris@0: 	    isNewLayer = true;
Chris@0: 	}
Chris@0: 
Chris@0:     } else {
Chris@0: 
Chris@0: 	if (!m_currentPane) {
Chris@0: 	    std::cerr << "WARNING: SV-XML: No current pane for layer " << id
Chris@0: 		      << " in view section" << std::endl;
Chris@0: 	    return false;
Chris@0: 	}
Chris@0: 
Chris@0: 	if (m_layers.find(id) != m_layers.end()) {
Chris@0: 	    
Chris@0: 	    layer = m_layers[id];
Chris@0: 	
Chris@0: 	} else {
Chris@0: 	    std::cerr << "WARNING: SV-XML: Layer id " << id 
Chris@0: 		      << " in view section has not been defined -- defining it here"
Chris@0: 		      << std::endl;
Chris@0: 
Chris@0: 	    layer = m_document->createLayer
Chris@0: 		(LayerFactory::getInstance()->getLayerTypeForName(type));
Chris@0: 
Chris@0: 	    if (layer) {
Chris@0: 		m_layers[id] = layer;
Chris@0: 		isNewLayer = true;
Chris@0: 	    }
Chris@0: 	}
Chris@0:     }
Chris@0: 	    
Chris@0:     if (!layer) {
Chris@0: 	std::cerr << "WARNING: SV-XML: Failed to add layer of type \""
Chris@0: 		  << type.toLocal8Bit().data()
Chris@0: 		  << "\"" << std::endl;
Chris@0: 	return false;
Chris@0:     }
Chris@0: 
Chris@0:     if (isNewLayer) {
Chris@0: 
Chris@0: 	QString name = attributes.value("name");
Chris@0: 	layer->setObjectName(name);
Chris@0: 
Chris@0: 	int modelId;
Chris@0: 	bool modelOk = false;
Chris@0: 	modelId = attributes.value("model").trimmed().toInt(&modelOk);
Chris@0: 
Chris@0: 	if (modelOk) {
Chris@0: 	    if (m_models.find(modelId) != m_models.end()) {
Chris@0: 		Model *model = m_models[modelId];
Chris@0: 		m_document->setModel(layer, model);
Chris@0: 	    } else {
Chris@0: 		std::cerr << "WARNING: SV-XML: Unknown model id " << modelId
Chris@0: 			  << " in layer definition" << std::endl;
Chris@0: 	    }
Chris@0: 	}
Chris@0: 
Chris@0: 	layer->setProperties(attributes);
Chris@0:     }
Chris@0: 
Chris@0:     if (!m_inData && m_currentPane) {
Chris@84: 
Chris@84:         QString visible = attributes.value("visible");
Chris@84:         bool dormant = (visible == "false");
Chris@84: 
Chris@84:         // We need to do this both before and after adding the layer
Chris@84:         // to the view -- we need it to be dormant if appropriate
Chris@84:         // before it's actually added to the view so that any property
Chris@84:         // box gets the right state when it's added, but the add layer
Chris@84:         // command sets dormant to false because it assumes it may be
Chris@84:         // restoring a previously dormant layer, so we need to set it
Chris@84:         // again afterwards too.  Hm
Chris@84:         layer->setLayerDormant(m_currentPane, dormant);
Chris@84: 
Chris@0: 	m_document->addLayerToView(m_currentPane, layer);
Chris@84: 
Chris@84:         layer->setLayerDormant(m_currentPane, dormant);
Chris@0:     }
Chris@0: 
Chris@0:     return true;
Chris@0: }
Chris@0: 
Chris@0: bool
Chris@0: SVFileReader::readDatasetStart(const QXmlAttributes &attributes)
Chris@0: {
Chris@0:     bool ok = false;
Chris@0: 
Chris@0:     READ_MANDATORY(int, id, toInt);
Chris@0:     READ_MANDATORY(int, dimensions, toInt);
Chris@0:     
Chris@0:     if (m_awaitingDatasets.find(id) == m_awaitingDatasets.end()) {
Chris@0: 	std::cerr << "WARNING: SV-XML: Unwanted dataset " << id << std::endl;
Chris@0: 	return false;
Chris@0:     }
Chris@0:     
Chris@0:     int modelId = m_awaitingDatasets[id];
Chris@0:     
Chris@0:     Model *model = 0;
Chris@0:     if (m_models.find(modelId) != m_models.end()) {
Chris@0: 	model = m_models[modelId];
Chris@0:     } else {
Chris@0: 	std::cerr << "WARNING: SV-XML: Internal error: Unknown model " << modelId
Chris@0: 		  << " expecting dataset " << id << std::endl;
Chris@0: 	return false;
Chris@0:     }
Chris@0: 
Chris@0:     bool good = false;
Chris@0: 
Chris@0:     switch (dimensions) {
Chris@0:     case 1:
Chris@0: 	if (dynamic_cast<SparseOneDimensionalModel *>(model)) good = true;
Chris@0: 	break;
Chris@0: 
Chris@0:     case 2:
Chris@0: 	if (dynamic_cast<SparseTimeValueModel *>(model)) good = true;
Chris@0: 	else if (dynamic_cast<TextModel *>(model)) good = true;
Chris@0: 	break;
Chris@0: 
Chris@0:     case 3:
Chris@0: 	if (dynamic_cast<NoteModel *>(model)) good = true;
Chris@3: 	else if (dynamic_cast<EditableDenseThreeDimensionalModel *>(model)) {
Chris@0: 	    m_datasetSeparator = attributes.value("separator");
Chris@0: 	    good = true;
Chris@0: 	}
Chris@0: 	break;
Chris@0:     }
Chris@0: 
Chris@0:     if (!good) {
Chris@0: 	std::cerr << "WARNING: SV-XML: Model id " << modelId << " has wrong number of dimensions for " << dimensions << "-D dataset " << id << std::endl;
Chris@0: 	m_currentDataset = 0;
Chris@0: 	return false;
Chris@0:     }
Chris@0: 
Chris@0:     m_currentDataset = model;
Chris@0:     return true;
Chris@0: }
Chris@0: 
Chris@0: bool
Chris@0: SVFileReader::addPointToDataset(const QXmlAttributes &attributes)
Chris@0: {
Chris@0:     bool ok = false;
Chris@0: 
Chris@0:     READ_MANDATORY(int, frame, toInt);
Chris@0: 
Chris@0:     SparseOneDimensionalModel *sodm = dynamic_cast<SparseOneDimensionalModel *>
Chris@0: 	(m_currentDataset);
Chris@0: 
Chris@0:     if (sodm) {
Chris@0: 	QString label = attributes.value("label");
Chris@0: 	sodm->addPoint(SparseOneDimensionalModel::Point(frame, label));
Chris@0: 	return true;
Chris@0:     }
Chris@0: 
Chris@0:     SparseTimeValueModel *stvm = dynamic_cast<SparseTimeValueModel *>
Chris@0: 	(m_currentDataset);
Chris@0: 
Chris@0:     if (stvm) {
Chris@0: 	float value = 0.0;
Chris@0: 	value = attributes.value("value").trimmed().toFloat(&ok);
Chris@0: 	QString label = attributes.value("label");
Chris@0: 	stvm->addPoint(SparseTimeValueModel::Point(frame, value, label));
Chris@0: 	return ok;
Chris@0:     }
Chris@0: 	
Chris@0:     NoteModel *nm = dynamic_cast<NoteModel *>(m_currentDataset);
Chris@0: 
Chris@0:     if (nm) {
Chris@0: 	float value = 0.0;
Chris@0: 	value = attributes.value("value").trimmed().toFloat(&ok);
Chris@0: 	float duration = 0.0;
Chris@0: 	duration = attributes.value("duration").trimmed().toFloat(&ok);
Chris@0: 	QString label = attributes.value("label");
Chris@0: 	nm->addPoint(NoteModel::Point(frame, value, duration, label));
Chris@0: 	return ok;
Chris@0:     }
Chris@0: 
Chris@0:     TextModel *tm = dynamic_cast<TextModel *>(m_currentDataset);
Chris@0: 
Chris@0:     if (tm) {
Chris@0: 	float height = 0.0;
Chris@0: 	height = attributes.value("height").trimmed().toFloat(&ok);
Chris@0: 	QString label = attributes.value("label");
Chris@0: 	tm->addPoint(TextModel::Point(frame, height, label));
Chris@0: 	return ok;
Chris@0:     }
Chris@0: 
Chris@0:     std::cerr << "WARNING: SV-XML: Point element found in non-point dataset" << std::endl;
Chris@0: 
Chris@0:     return false;
Chris@0: }
Chris@0: 
Chris@0: bool
Chris@0: SVFileReader::addBinToDataset(const QXmlAttributes &attributes)
Chris@0: {
Chris@3:     EditableDenseThreeDimensionalModel *dtdm = 
Chris@3:         dynamic_cast<EditableDenseThreeDimensionalModel *>
Chris@0: 	(m_currentDataset);
Chris@0: 
Chris@0:     if (dtdm) {
Chris@0: 
Chris@0: 	bool ok = false;
Chris@0: 	int n = attributes.value("number").trimmed().toInt(&ok);
Chris@0: 	if (!ok) {
Chris@0: 	    std::cerr << "WARNING: SV-XML: Missing or invalid bin number"
Chris@0: 		      << std::endl;
Chris@0: 	    return false;
Chris@0: 	}
Chris@0: 
Chris@0: 	QString name = attributes.value("name");
Chris@0: 
Chris@0: 	dtdm->setBinName(n, name);
Chris@0: 	return true;
Chris@0:     }
Chris@0: 
Chris@0:     std::cerr << "WARNING: SV-XML: Bin definition found in incompatible dataset" << std::endl;
Chris@0: 
Chris@0:     return false;
Chris@0: }
Chris@0: 
Chris@0: 
Chris@0: bool
Chris@0: SVFileReader::addRowToDataset(const QXmlAttributes &attributes)
Chris@0: {
Chris@0:     m_inRow = false;
Chris@0: 
Chris@0:     bool ok = false;
Chris@0:     m_rowNumber = attributes.value("n").trimmed().toInt(&ok);
Chris@0:     if (!ok) {
Chris@0: 	std::cerr << "WARNING: SV-XML: Missing or invalid row number"
Chris@0: 		  << std::endl;
Chris@0: 	return false;
Chris@0:     }
Chris@0:     
Chris@0:     m_inRow = true;
Chris@0: 
Chris@0: //    std::cerr << "SV-XML: In row " << m_rowNumber << std::endl;
Chris@0:     
Chris@0:     return true;
Chris@0: }
Chris@0: 
Chris@0: bool
Chris@0: SVFileReader::readRowData(const QString &text)
Chris@0: {
Chris@3:     EditableDenseThreeDimensionalModel *dtdm =
Chris@3:         dynamic_cast<EditableDenseThreeDimensionalModel *>
Chris@0: 	(m_currentDataset);
Chris@0: 
Chris@0:     bool warned = false;
Chris@0: 
Chris@0:     if (dtdm) {
Chris@0: 	QStringList data = text.split(m_datasetSeparator);
Chris@0: 
Chris@51: 	DenseThreeDimensionalModel::Column values;
Chris@0: 
Chris@0: 	for (QStringList::iterator i = data.begin(); i != data.end(); ++i) {
Chris@0: 
Chris@51: 	    if (values.size() == dtdm->getHeight()) {
Chris@0: 		if (!warned) {
Chris@0: 		    std::cerr << "WARNING: SV-XML: Too many y-bins in 3-D dataset row "
Chris@0: 			      << m_rowNumber << std::endl;
Chris@0: 		    warned = true;
Chris@0: 		}
Chris@0: 	    }
Chris@0: 
Chris@0: 	    bool ok;
Chris@0: 	    float value = i->toFloat(&ok);
Chris@0: 	    if (!ok) {
Chris@0: 		std::cerr << "WARNING: SV-XML: Bad floating-point value "
Chris@0: 			  << i->toLocal8Bit().data()
Chris@0: 			  << " in row data" << std::endl;
Chris@0: 	    } else {
Chris@0: 		values.push_back(value);
Chris@0: 	    }
Chris@0: 	}
Chris@0: 
Chris@51: 	dtdm->setColumn(m_rowNumber, values);
Chris@0: 	return true;
Chris@0:     }
Chris@0: 
Chris@0:     std::cerr << "WARNING: SV-XML: Row data found in non-row dataset" << std::endl;
Chris@0: 
Chris@0:     return false;
Chris@0: }
Chris@0: 
Chris@0: bool
Chris@0: SVFileReader::readDerivation(const QXmlAttributes &attributes)
Chris@0: {
Chris@0:     int modelId = 0;
Chris@0:     bool modelOk = false;
Chris@0:     modelId = attributes.value("model").trimmed().toInt(&modelOk);
Chris@0: 
Chris@0:     if (!modelOk) {
Chris@0: 	std::cerr << "WARNING: SV-XML: No model id specified for derivation" << std::endl;
Chris@0: 	return false;
Chris@0:     }
Chris@55: 
Chris@55:     QString transform = attributes.value("transform");
Chris@55: 
Chris@55:     if (m_models.find(modelId) != m_models.end()) {
Chris@55:         m_currentDerivedModel = m_models[modelId];
Chris@55:     } else {
Chris@55:         // we'll regenerate the model when the derivation element ends
Chris@55:         m_currentDerivedModel = 0;
Chris@55:     }
Chris@0:     
Chris@55:     m_currentDerivedModelId = modelId;
Chris@0:     
Chris@55:     int sourceId = 0;
Chris@55:     bool sourceOk = false;
Chris@55:     sourceId = attributes.value("source").trimmed().toInt(&sourceOk);
Chris@0: 
Chris@55:     if (sourceOk && m_models[sourceId]) {
Chris@55:         m_currentTransformSource = m_models[sourceId];
Chris@55:     } else {
Chris@55:         m_currentTransformSource = m_document->getMainModel();
Chris@55:     }
Chris@0: 
Chris@55:     m_currentTransform = transform;
Chris@55:     m_currentTransformConfiguration = "";
Chris@30: 
Chris@55:     m_currentTransformContext = PluginTransform::ExecutionContext();
Chris@30: 
Chris@55:     bool ok = false;
Chris@55:     int channel = attributes.value("channel").trimmed().toInt(&ok);
Chris@55:     if (ok) m_currentTransformContext.channel = channel;
Chris@30: 
Chris@55:     int domain = attributes.value("domain").trimmed().toInt(&ok);
Chris@55:     if (ok) m_currentTransformContext.domain = Vamp::Plugin::InputDomain(domain);
Chris@30: 
Chris@55:     int stepSize = attributes.value("stepSize").trimmed().toInt(&ok);
Chris@55:     if (ok) m_currentTransformContext.stepSize = stepSize;
Chris@30: 
Chris@55:     int blockSize = attributes.value("blockSize").trimmed().toInt(&ok);
Chris@55:     if (ok) m_currentTransformContext.blockSize = blockSize;
Chris@0: 
Chris@55:     int windowType = attributes.value("windowType").trimmed().toInt(&ok);
Chris@55:     if (ok) m_currentTransformContext.windowType = WindowType(windowType);
Chris@0: 
Chris@0:     return true;
Chris@0: }
Chris@0: 
Chris@0: bool
Chris@0: SVFileReader::readPlayParameters(const QXmlAttributes &attributes)
Chris@0: {
Chris@0:     m_currentPlayParameters = 0;
Chris@0: 
Chris@0:     int modelId = 0;
Chris@0:     bool modelOk = false;
Chris@0:     modelId = attributes.value("model").trimmed().toInt(&modelOk);
Chris@0: 
Chris@0:     if (!modelOk) {
Chris@0: 	std::cerr << "WARNING: SV-XML: No model id specified for play parameters" << std::endl;
Chris@0: 	return false;
Chris@0:     }
Chris@0: 
Chris@0:     if (m_models.find(modelId) != m_models.end()) {
Chris@0: 
Chris@0:         bool ok = false;
Chris@0: 
Chris@0:         PlayParameters *parameters = PlayParameterRepository::getInstance()->
Chris@0:             getPlayParameters(m_models[modelId]);
Chris@0: 
Chris@0:         if (!parameters) {
Chris@0:             std::cerr << "WARNING: SV-XML: Play parameters for model "
Chris@0:                       << modelId
Chris@0:                       << " not found - has model been added to document?"
Chris@0:                       << std::endl;
Chris@0:             return false;
Chris@0:         }
Chris@0:         
Chris@0:         bool muted = (attributes.value("mute").trimmed() == "true");
Chris@83:         parameters->setPlayMuted(muted);
Chris@0:         
Chris@0:         float pan = attributes.value("pan").toFloat(&ok);
Chris@0:         if (ok) parameters->setPlayPan(pan);
Chris@0:         
Chris@0:         float gain = attributes.value("gain").toFloat(&ok);
Chris@0:         if (ok) parameters->setPlayGain(gain);
Chris@0:         
Chris@0:         QString pluginId = attributes.value("pluginId");
Chris@0:         if (pluginId != "") parameters->setPlayPluginId(pluginId);
Chris@0:         
Chris@0:         m_currentPlayParameters = parameters;
Chris@0: 
Chris@0: //        std::cerr << "Current play parameters for model: " << m_models[modelId] << ": " << m_currentPlayParameters << std::endl;
Chris@0: 
Chris@0:     } else {
Chris@0: 
Chris@0: 	std::cerr << "WARNING: SV-XML: Unknown model " << modelId
Chris@0: 		  << " for play parameters" << std::endl;
Chris@0:         return false;
Chris@0:     }
Chris@0: 
Chris@0:     return true;
Chris@0: }
Chris@0: 
Chris@0: bool
Chris@0: SVFileReader::readPlugin(const QXmlAttributes &attributes)
Chris@0: {
Chris@55:     if (m_currentDerivedModelId < 0 && !m_currentPlayParameters) {
Chris@0:         std::cerr << "WARNING: SV-XML: Plugin found outside derivation or play parameters" << std::endl;
Chris@0:         return false;
Chris@0:     }
Chris@0: 
Chris@0:     QString configurationXml = "<plugin";
Chris@0:     
Chris@0:     for (int i = 0; i < attributes.length(); ++i) {
Chris@0:         configurationXml += QString(" %1=\"%2\"")
Chris@55:             .arg(attributes.qName(i))
Chris@55:             .arg(XmlExportable::encodeEntities(attributes.value(i)));
Chris@0:     }
Chris@0: 
Chris@0:     configurationXml += "/>";
Chris@0: 
Chris@0:     if (m_currentPlayParameters) {
Chris@0:         m_currentPlayParameters->setPlayPluginConfiguration(configurationXml);
Chris@0:     } else {
Chris@0:         m_currentTransformConfiguration += configurationXml;
Chris@0:     }
Chris@0: 
Chris@0:     return true;
Chris@0: }
Chris@0: 
Chris@0: bool
Chris@0: SVFileReader::readSelection(const QXmlAttributes &attributes)
Chris@0: {
Chris@0:     bool ok;
Chris@0: 
Chris@0:     READ_MANDATORY(int, start, toInt);
Chris@0:     READ_MANDATORY(int, end, toInt);
Chris@0: 
Chris@0:     m_paneCallback.addSelection(start, end);
Chris@0: 
Chris@0:     return true;
Chris@0: }
Chris@0: