Changed creation of QFileSystemModel. Object will now be created when the user first visits the "Output Folder" tab. Also added option to "refresh" the directory outline, which will effectively destroy and re-create the QFileSystemModel in order to discard all data that may be cached.

etc/Translation/LameXP_DE.ts

@@ -1846,6 +1846,10 @@
         <source>Initializing directory outline, please be patient...</source>
         <translation>Verzeichnisbaum wird erzeugt, bitte warten...</translation>
     </message>
+    <message>
+        <source>Refresh Directory Outline</source>
+        <translation>Verzeichnisbaum aktualisieren</translation>
+    </message>
 </context>
 <context>
     <name>MetaInfo</name>

etc/Translation/LameXP_ES.ts

@@ -1845,6 +1845,10 @@
         <source>Initializing directory outline, please be patient...</source>
         <translation type="unfinished"></translation>
     </message>
+    <message>
+        <source>Refresh Directory Outline</source>
+        <translation type="unfinished"></translation>
+    </message>
 </context>
 <context>
     <name>MetaInfo</name>

etc/Translation/LameXP_FR.ts

@@ -1855,6 +1855,10 @@ Ouvrir le dossier récursivement...</translation>
         <source>Initializing directory outline, please be patient...</source>
         <translation type="unfinished"></translation>
     </message>
+    <message>
+        <source>Refresh Directory Outline</source>
+        <translation type="unfinished"></translation>
+    </message>
 </context>
 <context>
     <name>MetaInfo</name>

etc/Translation/LameXP_IT.ts

@@ -1846,6 +1846,10 @@
         <source>Initializing directory outline, please be patient...</source>
         <translation type="unfinished"></translation>
     </message>
+    <message>
+        <source>Refresh Directory Outline</source>
+        <translation type="unfinished"></translation>
+    </message>
 </context>
 <context>
     <name>MetaInfo</name>

etc/Translation/LameXP_KR.ts

@@ -1845,6 +1845,10 @@
         <source>Initializing directory outline, please be patient...</source>
         <translation type="unfinished"></translation>
     </message>
+    <message>
+        <source>Refresh Directory Outline</source>
+        <translation type="unfinished"></translation>
+    </message>
 </context>
 <context>
     <name>MetaInfo</name>

etc/Translation/LameXP_RU.ts

@@ -1851,6 +1851,10 @@
         <source>Initializing directory outline, please be patient...</source>
         <translation type="unfinished">Чтение структуры каталогов, пожалуйста ждите...</translation>
     </message>
+    <message>
+        <source>Refresh Directory Outline</source>
+        <translation type="unfinished"></translation>
+    </message>
 </context>
 <context>
     <name>MetaInfo</name>

etc/Translation/LameXP_TW.ts

@@ -1845,6 +1845,10 @@
         <source>Initializing directory outline, please be patient...</source>
         <translation type="unfinished"></translation>
     </message>
+    <message>
+        <source>Refresh Directory Outline</source>
+        <translation type="unfinished"></translation>
+    </message>
 </context>
 <context>
     <name>MetaInfo</name>

etc/Translation/LameXP_UK.ts

@@ -1846,6 +1846,10 @@
         <source>Initializing directory outline, please be patient...</source>
         <translation type="unfinished"></translation>
     </message>
+    <message>
+        <source>Refresh Directory Outline</source>
+        <translation type="unfinished"></translation>
+    </message>
 </context>
 <context>
     <name>MetaInfo</name>

etc/Translation/LameXP_ZH.ts

@@ -1845,6 +1845,10 @@
         <source>Initializing directory outline, please be patient...</source>
         <translation type="unfinished"></translation>
     </message>
+    <message>
+        <source>Refresh Directory Outline</source>
+        <translation type="unfinished"></translation>
+    </message>
 </context>
 <context>
     <name>MetaInfo</name>

src/Config.h

@@ -30,7 +30,7 @@
 #define VER_LAMEXP_MINOR_LO					4
 #define VER_LAMEXP_TYPE						Beta
 #define VER_LAMEXP_PATCH					12
-#define VER_LAMEXP_BUILD					951
+#define VER_LAMEXP_BUILD					952
 
 ///////////////////////////////////////////////////////////////////////////////
 // Tool versions (minimum expected versions!)

src/Dialog_MainWindow.cpp

@@ -89,13 +89,14 @@ MainWindow::MainWindow(FileListModel *fileListModel, AudioFileModel *metaInfo, S
 	m_fileListModel(fileListModel),
 	m_metaData(metaInfo),
 	m_settings(settingsModel),
+	m_fileSystemModel(NULL),
 	m_neroEncoderAvailable(lamexp_check_tool("neroAacEnc.exe") && lamexp_check_tool("neroAacDec.exe") && lamexp_check_tool("neroAacTag.exe")),
 	m_fhgEncoderAvailable(lamexp_check_tool("fhgaacenc.exe") && lamexp_check_tool("enc_fhgaac.dll") && lamexp_check_tool("nsutil.dll") && lamexp_check_tool("libmp4v2.dll")),
 	m_qaacEncoderAvailable(lamexp_check_tool("qaac.exe") && lamexp_check_tool("libsoxrate.dll")),
 	m_accepted(false),
 	m_firstTimeShown(true),
-	m_outputFolderViewInitialized(4),
-	m_outputFolderViewCentering(false)
+	m_outputFolderViewCentering(false),
+	m_outputFolderViewInitCounter(0)
 {
 	//Init the dialog, from the .ui file
 	setupUi(this);
@@ -150,13 +151,6 @@ MainWindow::MainWindow(FileListModel *fileListModel, AudioFileModel *metaInfo, S
 	connect(m_importCsvContextAction, SIGNAL(triggered(bool)), this, SLOT(importCsvContextActionTriggered()));
 
 	//Setup "Output" tab
-	m_fileSystemModel = new QFileSystemModelEx();
-	m_fileSystemModel->installEventFilter(this);
-	outputFolderView->setModel(m_fileSystemModel);
-	outputFolderView->header()->setStretchLastSection(true);
-	outputFolderView->header()->hideSection(1);
-	outputFolderView->header()->hideSection(2);
-	outputFolderView->header()->hideSection(3);
 	outputFolderView->setHeaderHidden(true);
 	outputFolderView->setAnimated(false);
 	outputFolderView->setMouseTracking(false);
@@ -179,25 +173,32 @@ MainWindow::MainWindow(FileListModel *fileListModel, AudioFileModel *metaInfo, S
 	connect(saveToSourceFolderCheckBox, SIGNAL(clicked()), this, SLOT(saveToSourceFolderChanged()));
 	connect(prependRelativePathCheckBox, SIGNAL(clicked()), this, SLOT(prependRelativePathChanged()));
 	connect(outputFolderEdit, SIGNAL(editingFinished()), this, SLOT(outputFolderEditFinished()));
-	connect(m_fileSystemModel, SIGNAL(directoryLoaded(QString)), this, SLOT(outputFolderDirectoryLoaded(QString)));
-	connect(m_fileSystemModel, SIGNAL(rowsInserted(QModelIndex,int,int)), this, SLOT(outputFolderRowsInserted(QModelIndex,int,int)));
-	m_outputFolderContextMenu = new QMenu();
+	if(m_outputFolderContextMenu = new QMenu())
+	{
 		m_showFolderContextAction = m_outputFolderContextMenu->addAction(QIcon(":/icons/zoom.png"), "N/A");
-	m_outputFolderFavoritesMenu = new QMenu();
-	m_addFavoriteFolderAction = m_outputFolderFavoritesMenu->addAction(QIcon(":/icons/add.png"), "N/A");
-	m_outputFolderFavoritesMenu->insertSeparator(m_addFavoriteFolderAction);
+		m_refreshFolderContextAction = m_outputFolderContextMenu->addAction(QIcon(":/icons/arrow_refresh.png"), "N/A");
+		m_outputFolderContextMenu->setDefaultAction(m_showFolderContextAction);
 		connect(outputFolderView, SIGNAL(customContextMenuRequested(QPoint)), this, SLOT(outputFolderContextMenu(QPoint)));
 		connect(m_showFolderContextAction, SIGNAL(triggered(bool)), this, SLOT(showFolderContextActionTriggered()));
+		connect(m_refreshFolderContextAction, SIGNAL(triggered(bool)), this, SLOT(refreshFolderContextActionTriggered()));
+	}
+	if(m_outputFolderFavoritesMenu = new QMenu())
+	{
+		m_addFavoriteFolderAction = m_outputFolderFavoritesMenu->addAction(QIcon(":/icons/add.png"), "N/A");
+		m_outputFolderFavoritesMenu->insertSeparator(m_addFavoriteFolderAction);
 		connect(m_addFavoriteFolderAction, SIGNAL(triggered(bool)), this, SLOT(addFavoriteFolderActionTriggered()));
+	}
 	outputFolderEdit->setVisible(false);
 	outputFolderLabel->installEventFilter(this);
-	outputFolderView->setCurrentIndex(m_fileSystemModel->index(m_settings->outputDir()));
-	outputFolderViewClicked(outputFolderView->currentIndex());
-	m_outputFolderNoteBox = new QLabel(outputFolderView);
+	if(m_outputFolderNoteBox = new QLabel(outputFolderView))
+	{
 		m_outputFolderNoteBox->setAutoFillBackground(true);
 		m_outputFolderNoteBox->setAlignment(Qt::AlignHCenter | Qt::AlignVCenter);
 		m_outputFolderNoteBox->setFrameShape(QFrame::StyledPanel);
 		SET_FONT_BOLD(m_outputFolderNoteBox, true);
+		m_outputFolderNoteBox->hide();
+
+	}
 	refreshFavorites();
 	
 	//Setup "Meta Data" tab
@@ -722,6 +723,7 @@ void MainWindow::changeEvent(QEvent *e)
 		m_previewContextAction->setText(tr("Open File in External Application"));
 		m_findFileContextAction->setText(tr("Browse File Location"));
 		m_showFolderContextAction->setText(tr("Browse Selected Folder"));
+		m_refreshFolderContextAction->setText(tr("Refresh Directory Outline"));
 		m_addFavoriteFolderAction->setText(tr("Bookmark Current Output Folder"));
 		m_exportCsvContextAction->setText(tr("Export Meta Tags to CSV File"));
 		m_importCsvContextAction->setText(tr("Import Meta Tags from CSV File"));
@@ -842,6 +844,23 @@ void MainWindow::resizeEvent(QResizeEvent *event)
 	}
 }
 
+/*
+ * Key press event filter
+ */
+void MainWindow::keyPressEvent(QKeyEvent *e)
+{
+	if(e->key() == Qt::Key_F5)
+	{
+		if(outputFolderView->isVisible())
+		{
+			QTimer::singleShot(0, this, SLOT(refreshFolderContextActionTriggered()));
+			return;
+		}
+	}
+
+	QMainWindow::keyPressEvent(e);
+}
+
 /*
  * Event filter
  */
@@ -1449,7 +1468,7 @@ void MainWindow::tabPageChanged(int idx)
 	}
 	else if(idx == tabWidget->indexOf(tabOutputDir))
 	{
-		if(m_outputFolderViewInitialized > 0)
+		if(!m_fileSystemModel)
 		{
 			QTimer::singleShot(125, this, SLOT(initOutputFolderModel()));
 		}
@@ -2356,10 +2375,14 @@ void MainWindow::outputFolderViewClicked(const QModelIndex &index)
 	{
 		outputFolderView->setCurrentIndex(index);
 	}
+	
+	if(m_fileSystemModel)
+	{
 		QString selectedDir = m_fileSystemModel->filePath(index);
 		if(selectedDir.length() < 3) selectedDir.append(QDir::separator());
 		outputFolderLabel->setText(QDir::toNativeSeparators(selectedDir));
 		m_settings->outputDir(selectedDir);
+	}
 }
 
 /*
@@ -2378,6 +2401,12 @@ void MainWindow::outputFolderViewMoved(const QModelIndex &index)
  */
 void MainWindow::gotoDesktopButtonClicked(void)
 {
+	if(!m_fileSystemModel)
+	{
+		qWarning("File system model not initialized yet!");
+		return;
+	}
+	
 	QString desktopPath = QDesktopServices::storageLocation(QDesktopServices::DesktopLocation);
 	
 	if(!desktopPath.isEmpty() && QDir(desktopPath).exists())
@@ -2397,6 +2426,12 @@ void MainWindow::gotoDesktopButtonClicked(void)
  */
 void MainWindow::gotoHomeFolderButtonClicked(void)
 {
+	if(!m_fileSystemModel)
+	{
+		qWarning("File system model not initialized yet!");
+		return;
+	}
+
 	QString homePath = QDesktopServices::storageLocation(QDesktopServices::HomeLocation);
 	
 	if(!homePath.isEmpty() && QDir(homePath).exists())
@@ -2416,6 +2451,12 @@ void MainWindow::gotoHomeFolderButtonClicked(void)
  */
 void MainWindow::gotoMusicFolderButtonClicked(void)
 {
+	if(!m_fileSystemModel)
+	{
+		qWarning("File system model not initialized yet!");
+		return;
+	}
+
 	QString musicPath = QDesktopServices::storageLocation(QDesktopServices::MusicLocation);
 	
 	if(!musicPath.isEmpty() && QDir(musicPath).exists())
@@ -2435,6 +2476,12 @@ void MainWindow::gotoMusicFolderButtonClicked(void)
  */
 void MainWindow::gotoFavoriteFolder(void)
 {
+	if(!m_fileSystemModel)
+	{
+		qWarning("File system model not initialized yet!");
+		return;
+	}
+
 	QAction *item = dynamic_cast<QAction*>(QObject::sender());
 	
 	if(item)
@@ -2462,6 +2509,12 @@ void MainWindow::makeFolderButtonClicked(void)
 {
 	ABORT_IF_BUSY;
 
+	if(!m_fileSystemModel)
+	{
+		qWarning("File system model not initialized yet!");
+		return;
+	}
+
 	QDir basePath(m_fileSystemModel->fileInfo(outputFolderView->currentIndex()).absoluteFilePath());
 	QString suggestedName = tr("New Folder");
 
@@ -2581,11 +2634,38 @@ void MainWindow::outputFolderContextMenu(const QPoint &pos)
  */
 void MainWindow::showFolderContextActionTriggered(void)
 {
+	if(!m_fileSystemModel)
+	{
+		qWarning("File system model not initialized yet!");
+		return;
+	}
+
 	QString path = QDir::toNativeSeparators(m_fileSystemModel->filePath(outputFolderView->currentIndex()));
 	if(!path.endsWith(QDir::separator())) path.append(QDir::separator());
 	ShellExecuteW(this->winId(), L"explore", QWCHAR(path), NULL, NULL, SW_SHOW);
 }
 
+/*
+ * Refresh the directory outline
+ */
+void MainWindow::refreshFolderContextActionTriggered(void)
+{
+	QTimer::singleShot(0, this, SLOT(initOutputFolderModel()));
+
+	/*
+	const QString path = m_fileSystemModel->filePath(outputFolderView->currentIndex());
+	m_fileSystemModel->flushCache();
+	outputFolderView->reset();
+	QModelIndex index = (!path.isEmpty()) ? m_fileSystemModel->index(path) : QModelIndex();
+	
+	if(index.isValid())
+	{
+		outputFolderView->setCurrentIndex(index);
+		CENTER_CURRENT_OUTPUT_FOLDER_DELAYED;
+	}
+	*/
+}
+
 /*
  * Add current folder to favorites
  */
@@ -2676,9 +2756,38 @@ void MainWindow::outputFolderEditFinished(void)
  */
 void MainWindow::initOutputFolderModel(void)
 {
-	if(m_fileSystemModel) m_fileSystemModel->setRootPath("");
+	if(m_outputFolderNoteBox->isHidden())
+	{
+		m_outputFolderNoteBox->show();
+		m_outputFolderViewInitCounter = 4;
+
+		if(m_fileSystemModel)
+		{
+			outputFolderView->setModel(NULL);
+			LAMEXP_DELETE(m_fileSystemModel);
+		}
+
+		if(m_fileSystemModel = new QFileSystemModelEx())
+		{
+			m_fileSystemModel->installEventFilter(this);
+			connect(m_fileSystemModel, SIGNAL(directoryLoaded(QString)), this, SLOT(outputFolderDirectoryLoaded(QString)));
+			connect(m_fileSystemModel, SIGNAL(rowsInserted(QModelIndex,int,int)), this, SLOT(outputFolderRowsInserted(QModelIndex,int,int)));
+
+			outputFolderView->setModel(m_fileSystemModel);
+			outputFolderView->header()->setStretchLastSection(true);
+			outputFolderView->header()->hideSection(1);
+			outputFolderView->header()->hideSection(2);
+			outputFolderView->header()->hideSection(3);
+		
+			m_fileSystemModel->setRootPath("");
+			QModelIndex index = m_fileSystemModel->index(m_settings->outputDir());
+			if(index.isValid()) outputFolderView->setCurrentIndex(index);
+			outputFolderViewClicked(outputFolderView->currentIndex());
+		}
+		
 		CENTER_CURRENT_OUTPUT_FOLDER_DELAYED;
 		QTimer::singleShot(125, this, SLOT(initOutputFolderModel_doAsync()));
+	}
 }
 
 /*
@@ -2686,9 +2795,9 @@ void MainWindow::initOutputFolderModel(void)
  */
 void MainWindow::initOutputFolderModel_doAsync(void)
 {
-	if(m_outputFolderViewInitialized > 0)
+	if(m_outputFolderViewInitCounter > 0)
 	{
-		m_outputFolderViewInitialized--;
+		m_outputFolderViewInitCounter--;
 		QTimer::singleShot(125, this, SLOT(initOutputFolderModel_doAsync()));
 	}
 	else

src/Dialog_MainWindow.h

@@ -116,6 +116,7 @@ private slots:
 	void playlistEnabledChanged(void);
 	void prependRelativePathChanged(void);
 	void previewContextActionTriggered(void);
+	void refreshFolderContextActionTriggered(void);
 	void removeFileButtonClicked(void);
 	void renameOutputEnabledChanged(bool checked);
 	void renameOutputPatternChanged(void);
@@ -155,6 +156,7 @@ protected:
 	virtual bool eventFilter(QObject *obj, QEvent *event);
 	virtual void resizeEvent(QResizeEvent *event);
 	virtual void showEvent(QShowEvent *event);
+	virtual void keyPressEvent(QKeyEvent *e);
 	virtual bool event(QEvent *e);
 	virtual bool winEvent(MSG *message, long *result);
 
@@ -166,7 +168,7 @@ private:
 	
 	bool m_accepted;
 	bool m_firstTimeShown;
-	uint m_outputFolderViewInitialized;
+	uint m_outputFolderViewInitCounter;
 	bool m_outputFolderViewCentering;
 
 	const bool m_neroEncoderAvailable;
@@ -193,6 +195,7 @@ private:
 	QAction *m_previewContextAction;
 	QAction *m_showDetailsContextAction;
 	QAction *m_showFolderContextAction;
+	QAction *m_refreshFolderContextAction;
 	QAction *m_addFavoriteFolderAction;
 	QAction *m_exportCsvContextAction;
 	QAction *m_importCsvContextAction;

src/Model_FileSystem.cpp

@@ -153,6 +153,7 @@ QFileSystemModelEx::QFileSystemModelEx()
 
 QFileSystemModelEx::~QFileSystemModelEx()
 {
+	removeAllFromCache();
 	LAMEXP_DELETE(m_myIconProvider);
 }
 
@@ -205,6 +206,11 @@ QModelIndex QFileSystemModelEx::index(const QString &path, int column) const
 	return QModelIndex();
 }
 
+void QFileSystemModelEx::flushCache(void)
+{
+	removeAllFromCache();
+}
+
 /* ------------------------ */
 /*  STATIC FUNCTIONS BELOW  */
 /* ------------------------ */
@@ -236,6 +242,12 @@ void QFileSystemModelEx::removeFromCache(const QString &path)
 	s_hasSubfolderCache.remove(path);
 }
 
+void QFileSystemModelEx::removeAllFromCache(void)
+{
+	QMutexLocker lock(&s_hasSubfolderMutex);
+	s_hasSubfolderCache.clear();
+}
+
 bool QFileSystemModelEx::hasSubfolders(const QString &path)
 {
 	if(!FindFirstFileExInitialized)

src/Model_FileSystem.h

@@ -36,6 +36,7 @@ public:
 	//virtual int rowCount(const QModelIndex &parent = QModelIndex()) const;
 	virtual void fetchMore(const QModelIndex &parent);
 	virtual QModelIndex index(const QString &path, int column = 0) const;
+	virtual void flushCache(void);
 
 private:
 	QFileIconProviderEx *m_myIconProvider;
@@ -50,4 +51,5 @@ private:
 	static bool hasSubfolders(const QString &path);
 	static bool hasSubfoldersCached(const QString &path);
 	static void removeFromCache(const QString &path);
+	static void removeAllFromCache(void);
 };