changeset 141:9a8c73ffdce0

* Make it possible to import an entire session from an RDF document.
  However, at the moment the timings of events appear to be constrained
  by how far the audio decoder has got through its audio file at the
  time the event is queried -- need to investigate.

--- a/framework/MainWindowBase.cpp	Thu Nov 20 10:59:14 2008 +0000
+++ b/framework/MainWindowBase.cpp	Fri Nov 21 18:03:14 2008 +0000
@@ -1129,7 +1129,8 @@
     if (source.getExtension() == "rdf" || source.getExtension() == "n3" ||
         source.getExtension() == "ttl") {
 
-        RDFImporter importer("file://" + path, getMainModel()->getSampleRate());
+        RDFImporter importer(QUrl::fromLocalFile(path).toString(),
+                             getMainModel()->getSampleRate());
         if (importer.isOK()) {
 
             std::vector<Model *> models;
@@ -1318,6 +1319,11 @@
 
     if (!source.isAvailable()) return FileOpenFailed;
 
+    if (source.getExtension() == "rdf" || source.getExtension() == "n3" ||
+        source.getExtension() == "ttl") {
+        return openSessionFromRDF(source);
+    }
+
     if (source.getExtension() != "sv") {
         if (source.getExtension() == "xml") {
             source.waitForData();
@@ -1416,6 +1422,79 @@
     return ok ? FileOpenSucceeded : FileOpenFailed;
 }
 
+MainWindowBase::FileOpenStatus
+MainWindowBase::openSessionFromRDF(FileSource source)
+{
+    std::cerr << "MainWindowBase::openSessionFromRDF(" << source.getLocation().toStdString() << ")" << std::endl;
+
+    if (!source.isAvailable()) return FileOpenFailed;
+
+    source.waitForData();
+
+    RDFImporter importer
+        (QUrl::fromLocalFile(source.getLocalFilename()).toString());
+
+    QString audioUrl = importer.getAudioAvailableUrl();
+    if (audioUrl == "") {
+        std::cerr << "MainWindowBase::openSessionFromRDF: No audio URL in RDF, can't open a session without audio" << std::endl;
+        return FileOpenFailed;
+    }
+
+    size_t rate = 0;
+
+    if (Preferences::getInstance()->getResampleOnLoad()) {
+        rate = m_playSource->getSourceSampleRate();
+    }
+
+    WaveFileModel *newModel = new WaveFileModel(audioUrl, rate);
+
+    if (!newModel->isOK()) {
+        delete newModel;
+        std::cerr << "MainWindowBase::openSessionFromRDF: Cannot open audio URL \"" << audioUrl.toStdString() << "\" referred to in RDF, can't open a session without audio" << std::endl;
+        return FileOpenFailed;
+    }
+
+    if (!checkSaveModified()) {
+        delete newModel;
+        return FileOpenCancelled;
+    }
+
+    closeSession();
+    createDocument();
+
+    m_viewManager->clearSelections();
+
+    m_document->setMainModel(newModel);
+
+    AddPaneCommand *command = new AddPaneCommand(this);
+    CommandHistory::getInstance()->addCommand(command);
+    
+    Pane *pane = command->getPane();
+        
+    if (m_timeRulerLayer) {
+        m_document->addLayerToView(pane, m_timeRulerLayer);
+    }
+    
+    Layer *newLayer = m_document->createImportedLayer(newModel);
+
+    if (newLayer) {
+        m_document->addLayerToView(pane, newLayer);
+    }
+
+    FileOpenStatus layerStatus = openLayer(source);
+
+    setupMenus();
+    
+    setWindowTitle(tr("%1: %2")
+                   .arg(QApplication::applicationName())
+                   .arg(source.getLocation()));
+    CommandHistory::getInstance()->clear();
+    CommandHistory::getInstance()->documentSaved();
+    m_documentModified = false;
+    
+    return layerStatus;
+}
+
 void
 MainWindowBase::createPlayTarget()
 {

--- a/framework/MainWindowBase.h	Thu Nov 20 10:59:14 2008 +0000
+++ b/framework/MainWindowBase.h	Fri Nov 21 18:03:14 2008 +0000
@@ -249,6 +249,8 @@
     virtual void contextHelpChanged(const QString &);
     virtual void inProgressSelectionChanged();
 
+    virtual FileOpenStatus openSessionFromRDF(FileSource source);
+
     virtual void closeSession() = 0;
 
 protected: