comparison sv/document/ESFileReader.cpp @ 19:2a6f70f97395

add
- EasaierSessionManager
- Easaier menus
- Interval model

+/* -*- c-basic-offset: 4 indent-tabs-mode: nil -*-  vi:set ts=8 sts=4 sw=4: */
+
+/*	Sound Access	
+		EASAIER client application.	
+		Silogic 2007. Laure Bajard. 
+	
+	This program is free software; you can redistribute it and/or    
+	modify it under the terms of the GNU General Public License as    
+	published by the Free Software Foundation; either version 2 of the    
+	License, or (at your option) any later version.  See the file    
+	COPYING included with this distribution for more information.
+*/
+
+#include <QString>
+#include <QMessageBox>
+#include <QFileDialog>
+#include <QUrl>
+
+#include <iostream>
+
+#include "ESFileReader.h"
+
+#include "layer/Layer.h"
+#include "view/View.h"
+#include "base/PlayParameters.h"
+#include "base/PlayParameterRepository.h"
+#include "base/TempDirectory.h"
+#include "data/fileio/AudioFileReaderFactory.h"
+#include "data/model/WaveFileModel.h"
+#include "data/model/DenseThreeDimensionalModel.h"
+#include "data/model/SparseOneDimensionalModel.h"
+#include "data/model/SparseTimeValueModel.h"
+#include "data/model/NoteModel.h"
+#include "data/model/TextModel.h"
+#include "view/Pane.h"
+#include "document/Document.h"
+
+
+ESFileReader::ESFileReader(Document *document,
+			   ESFileReaderPaneCallback &callback) : QXmlDefaultHandler(),
+    m_document(document),
+    m_paneCallback(callback),
+    m_currentPane(0),
+    m_inView(false),
+    m_inData(false),
+    m_ok(false)
+{}
+
+void
+ESFileReader::parse(const QString &xmlData)
+{
+    QXmlInputSource inputSource;
+    inputSource.setData(xmlData);
+    parse(inputSource);
+}
+
+void
+ESFileReader::parse(QXmlInputSource &inputSource)
+{
+    QXmlSimpleReader reader;
+    reader.setContentHandler(this);
+    reader.setErrorHandler(this);
+    m_ok = reader.parse(inputSource);
+}    
+
+bool
+ESFileReader::isOK()
+{
+    return m_ok;
+}
+	
+ESFileReader::~ESFileReader()
+{}
+
+bool
+ESFileReader::startElement(const QString &, const QString &,
+			   const QString &qName,
+			   const QXmlAttributes &attributes)
+{
+    QString name = qName.toLower();
+
+    bool ok = false;
+
+    // Valid element names:
+    //
+    // easaiersession
+    // data
+	// easaierresources
+	// audio
+    // display
+	// window
+	// view
+	// layer
+
+    if (name == "easaiersession") {
+		// nothing needed
+		ok = true;
+
+    } else if (name == "data") {
+		// nothing needed
+		m_inData = true;
+		ok = true;
+
+    } else if (name == "easaierresources") {
+		// nothing needed
+		ok = true;
+
+    } else if (name == "audio") {
+		QString filename = attributes.value("value");
+		m_document->setAudioSourceInfoFileName(filename);
+
+    } else if (name == "display") {
+		// nothing needed
+		ok = true;
+
+    } else if (name == "window") {
+		ok = readWindow(attributes);
+
+    } else if (name == "view") {
+		m_inView = true;
+		ok = readView(attributes);
+
+    } else if (name == "layer") {
+        ok = readLayer(attributes);
+
+    } 
+
+    if (!ok) {
+	std::cerr << "WARNING: Easaier Session-XML: Failed to completely process element \""
+		  << name.toLocal8Bit().data() << "\"" << std::endl;
+    }
+
+    return true;
+}
+
+bool
+ESFileReader::characters(const QString &text)
+{
+    return true;
+}
+
+bool
+ESFileReader::endElement(const QString &, const QString &,
+			 const QString &qName)
+{
+    QString name = qName.toLower();
+
+    if (name == "data") {
+
+        m_inData = false;
+
+    } else if (name == "view") {
+		m_inView = false;
+    } 
+
+    return true;
+}
+
+bool
+ESFileReader::error(const QXmlParseException &exception)
+{
+    m_errorString =
+	QString("ERROR: Easaier Session-XML: %1 at line %2, column %3")
+	.arg(exception.message())
+	.arg(exception.lineNumber())
+	.arg(exception.columnNumber());
+    std::cerr << m_errorString.toLocal8Bit().data() << std::endl;
+    return QXmlDefaultHandler::error(exception);
+}
+
+bool
+ESFileReader::fatalError(const QXmlParseException &exception)
+{
+    m_errorString =
+	QString("FATAL ERROR: Easaier Session-XML: %1 at line %2, column %3")
+	.arg(exception.message())
+	.arg(exception.lineNumber())
+	.arg(exception.columnNumber());
+    std::cerr << m_errorString.toLocal8Bit().data() << std::endl;
+    return QXmlDefaultHandler::fatalError(exception);
+}
+
+
+#define READ_MANDATORY(TYPE, NAME, CONVERSION)		      \
+    TYPE NAME = attributes.value(#NAME).trimmed().CONVERSION(&ok); \
+    if (!ok) { \
+	std::cerr << "WARNING: Easaier Session-XML: Missing or invalid mandatory " #TYPE " attribute \"" #NAME "\"" << std::endl; \
+	return false; \
+    }
+
+bool
+ESFileReader::readWindow(const QXmlAttributes &attributes)
+{
+    bool ok = false;
+
+    READ_MANDATORY(int, width, toInt);
+    READ_MANDATORY(int, height, toInt);
+
+    m_paneCallback.setWindowSize(width, height);
+    return true;
+}
+
+bool
+ESFileReader::readView(const QXmlAttributes &attributes)
+{
+    QString type = attributes.value("type");
+    m_currentPane = 0;
+    
+    if (type != "pane") {
+	std::cerr << "WARNING: Easaier session-XML: Unexpected view type \""
+		  << type.toLocal8Bit().data() << "\"" << std::endl;
+	return false;
+    }
+
+	m_currentPane = m_paneCallback.addPane();
+
+    if (!m_currentPane) {
+	std::cerr << "WARNING: Easaier session-XML: Internal error: Failed to add pane!"
+		  << std::endl;
+	return false;
+    }
+
+    bool ok = false;
+
+    View *view = m_currentPane;
+
+    // The view properties first
+
+    READ_MANDATORY(size_t, centre, toUInt);
+    READ_MANDATORY(size_t, zoom, toUInt);
+    READ_MANDATORY(int, followPan, toInt);
+    READ_MANDATORY(int, followZoom, toInt);
+    QString tracking = attributes.value("tracking");
+
+    // Specify the follow modes before we set the actual values
+    view->setFollowGlobalPan(followPan);
+    view->setFollowGlobalZoom(followZoom);
+	view->setPlaybackFollow(tracking == "scroll" ? PlaybackScrollContinuous :
+			    tracking == "page" ? PlaybackScrollPage
+			    : PlaybackIgnore);
+
+    // Then set these values
+    view->setCentreFrame(centre);
+    view->setZoomLevel(zoom);
+
+    // And pane properties
+    READ_MANDATORY(int, centreLineVisible, toInt);
+    m_currentPane->setCentreLineVisible(centreLineVisible);
+
+    int height = attributes.value("height").toInt(&ok);
+    if (ok) {
+	m_currentPane->resize(m_currentPane->width(), height);
+    }
+
+    return true;
+}
+
+bool
+ESFileReader::readLayer(const QXmlAttributes &attributes)
+{
+    QString type = attributes.value("type");
+
+    int id;
+    bool ok = false;
+    id = attributes.value("id").trimmed().toInt(&ok);
+
+    if (!ok) {
+	std::cerr << "WARNING: Easaier session-XML: No layer id for layer of type \""
+		  << type.toLocal8Bit().data()
+		  << "\"" << std::endl;
+	return false;
+    }
+
+    Layer *layer = 0;
+    bool isNewLayer = false;
+
+    // Layers are expected to be defined in layer elements in the data
+    // section, and referred to in layer elements in the view
+    // sections.  So if we're in the data section, we expect this
+    // layer not to exist already; if we're in the view section, we
+    // expect it to exist.
+
+    if (m_inData) {
+
+	if (m_layers.find(id) != m_layers.end()) {
+	    std::cerr << "WARNING: Easaier session-XML: Ignoring duplicate layer id " << id
+		      << " in data section" << std::endl;
+	    return false;
+	}
+
+	layer = m_layers[id] = m_document->createLayer
+	    (LayerFactory::getInstance()->getLayerTypeForName(type));
+
+	if (layer) {
+	    m_layers[id] = layer;
+	    isNewLayer = true;
+	}
+
+    } else {
+
+	if (!m_currentPane) {
+	    std::cerr << "WARNING: Easaier session-XML: No current pane for layer " << id
+		      << " in view section" << std::endl;
+	    return false;
+	}
+
+	if (m_layers.find(id) != m_layers.end()) {
+	    
+	    layer = m_layers[id];
+	
+	} else {
+	   layer = m_document->createLayer(LayerFactory::getInstance()->getLayerTypeForName(type));
+
+	    if (layer) {
+		m_layers[id] = layer;
+		isNewLayer = true;
+	    }
+	}
+    }
+	    
+    if (!layer) {
+	std::cerr << "WARNING: Easaier session-XML: Failed to add layer of type \""
+		  << type.toLocal8Bit().data()
+		  << "\"" << std::endl;
+	return false;
+    }
+
+    if (isNewLayer) {
+
+		QString name = attributes.value("name");
+		layer->setObjectName(name);
+
+		QString modelName = attributes.value("model");
+		int modelId = attributes.value("modelId").toInt();
+
+		layer->setModelName(modelName);
+		layer->setModelId(modelId);
+
+		layer->setProperties(attributes);
+    }
+
+    if (!m_inData && m_currentPane) {
+		m_document->addLayerToView(m_currentPane, layer);
+    }
+
+    return true;
+}
+