///////////////////////////////////////////////////////////////////////////////
// LameXP - Audio Encoder Front-End
// Copyright (C) 2004-2010 LoRd_MuldeR <MuldeR2@GMX.de>
//
// 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.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License along
// with this program; if not, write to the Free Software Foundation, Inc.,
// 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
//
// http://www.gnu.org/licenses/gpl-2.0.txt
///////////////////////////////////////////////////////////////////////////////

#include "Dialog_MainWindow.h"

//LameXP includes
#include "Global.h"
#include "Resource.h"
#include "Dialog_WorkingBanner.h"
#include "Dialog_MetaInfo.h"
#include "Dialog_About.h"
#include "Dialog_Update.h"
#include "Dialog_DropBox.h"
#include "Thread_FileAnalyzer.h"
#include "Thread_MessageHandler.h"
#include "Model_MetaInfo.h"
#include "Model_Settings.h"
#include "Model_FileList.h"
#include "Model_FileSystem.h"
#include "WinSevenTaskbar.h"
#include "Registry_Decoder.h"

//Qt includes
#include <QMessageBox>
#include <QTimer>
#include <QDesktopWidget>
#include <QDate>
#include <QFileDialog>
#include <QInputDialog>
#include <QFileSystemModel>
#include <QDesktopServices>
#include <QUrl>
#include <QPlastiqueStyle>
#include <QCleanlooksStyle>
#include <QWindowsVistaStyle>
#include <QWindowsStyle>
#include <QSysInfo>
#include <QDragEnterEvent>
#include <QWindowsMime>
#include <QProcess>
#include <QUuid>
#include <QProcessEnvironment>
#include <QCryptographicHash>
#include <QTranslator>
#include <QResource>

//Win32 includes
#include <Windows.h>

//Helper macros
#define ABORT_IF_BUSY if(m_banner->isVisible() || m_delayedFileTimer->isActive()) { MessageBeep(MB_ICONEXCLAMATION); return; }
#define SET_TEXT_COLOR(WIDGET,COLOR) { QPalette _palette = WIDGET->palette(); _palette.setColor(QPalette::WindowText, COLOR); WIDGET->setPalette(_palette); }
#define SET_FONT_BOLD(WIDGET,BOLD) { QFont _font = WIDGET->font(); _font.setBold(BOLD); WIDGET->setFont(_font); }
#define FLASH_WINDOW(WND) { FLASHWINFO flashInfo; memset(&flashInfo, 0, sizeof(FLASHWINFO)); flashInfo.cbSize = sizeof(FLASHWINFO); flashInfo.dwFlags = FLASHW_ALL; flashInfo.uCount = 12; flashInfo.dwTimeout = 125; flashInfo.hwnd = WND->winId(); FlashWindowEx(&flashInfo); }
#define LINK(URL) QString("<a href=\"%1\">%2</a>").arg(URL).arg(URL)

//Helper class
class Index: public QObjectUserData
{
public:
	Index(int index) { m_index = index; }
	int value(void) { return m_index; }
private:
	int m_index;
};

////////////////////////////////////////////////////////////
// Constructor
////////////////////////////////////////////////////////////

MainWindow::MainWindow(FileListModel *fileListModel, AudioFileModel *metaInfo, SettingsModel *settingsModel, QWidget *parent)
:
	QMainWindow(parent),
	m_fileListModel(fileListModel),
	m_metaData(metaInfo),
	m_settings(settingsModel),
	m_accepted(false),
	m_firstTimeShown(true)
{
	//Init the dialog, from the .ui file
	setupUi(this);
	setWindowFlags(windowFlags() ^ Qt::WindowMaximizeButtonHint);
	
	//Register meta types
	qRegisterMetaType<AudioFileModel>("AudioFileModel");

	//Enabled main buttons
	connect(buttonAbout, SIGNAL(clicked()), this, SLOT(aboutButtonClicked()));
	connect(buttonStart, SIGNAL(clicked()), this, SLOT(encodeButtonClicked()));
	connect(buttonQuit, SIGNAL(clicked()), this, SLOT(closeButtonClicked()));

	//Setup tab widget
	tabWidget->setCurrentIndex(0);
	connect(tabWidget, SIGNAL(currentChanged(int)), this, SLOT(tabPageChanged(int)));

	//Setup "Source" tab
	sourceFileView->setModel(m_fileListModel);
	sourceFileView->verticalHeader()->setResizeMode(QHeaderView::ResizeToContents);
	sourceFileView->horizontalHeader()->setResizeMode(QHeaderView::ResizeToContents);
	sourceFileView->setContextMenuPolicy(Qt::CustomContextMenu);
	m_dropNoteLabel = new QLabel(sourceFileView);
	m_dropNoteLabel->setAlignment(Qt::AlignHCenter | Qt::AlignVCenter);
	SET_FONT_BOLD(m_dropNoteLabel, true);
	SET_TEXT_COLOR(m_dropNoteLabel, Qt::darkGray);
	m_sourceFilesContextMenu = new QMenu();
	m_showDetailsContextAction = m_sourceFilesContextMenu->addAction(QIcon(":/icons/zoom.png"), "N/A");
	m_previewContextAction = m_sourceFilesContextMenu->addAction(QIcon(":/icons/sound.png"), "N/A");
	m_findFileContextAction = m_sourceFilesContextMenu->addAction(QIcon(":/icons/folder_go.png"), "N/A");
	SET_FONT_BOLD(m_showDetailsContextAction, true);
	connect(buttonAddFiles, SIGNAL(clicked()), this, SLOT(addFilesButtonClicked()));
	connect(buttonRemoveFile, SIGNAL(clicked()), this, SLOT(removeFileButtonClicked()));
	connect(buttonClearFiles, SIGNAL(clicked()), this, SLOT(clearFilesButtonClicked()));
	connect(buttonFileUp, SIGNAL(clicked()), this, SLOT(fileUpButtonClicked()));
	connect(buttonFileDown, SIGNAL(clicked()), this, SLOT(fileDownButtonClicked()));
	connect(buttonShowDetails, SIGNAL(clicked()), this, SLOT(showDetailsButtonClicked()));
	connect(m_fileListModel, SIGNAL(rowsInserted(QModelIndex,int,int)), this, SLOT(sourceModelChanged()));
	connect(m_fileListModel, SIGNAL(rowsRemoved(QModelIndex,int,int)), this, SLOT(sourceModelChanged()));
	connect(m_fileListModel, SIGNAL(modelReset()), this, SLOT(sourceModelChanged()));
	connect(sourceFileView, SIGNAL(customContextMenuRequested(QPoint)), this, SLOT(sourceFilesContextMenu(QPoint)));
	connect(m_showDetailsContextAction, SIGNAL(triggered(bool)), this, SLOT(showDetailsButtonClicked()));
	connect(m_previewContextAction, SIGNAL(triggered(bool)), this, SLOT(previewContextActionTriggered()));
	connect(m_findFileContextAction, SIGNAL(triggered(bool)), this, SLOT(findFileContextActionTriggered()));

	//Setup "Output" tab
	m_fileSystemModel = new QFileSystemModelEx();
	m_fileSystemModel->setRootPath(m_fileSystemModel->rootPath());
	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(true);
	outputFolderView->setMouseTracking(false);
	outputFolderView->setContextMenuPolicy(Qt::CustomContextMenu);
	while(saveToSourceFolderCheckBox->isChecked() != m_settings->outputToSourceDir()) saveToSourceFolderCheckBox->click();
	prependRelativePathCheckBox->setChecked(m_settings->prependRelativeSourcePath());
	connect(outputFolderView, SIGNAL(clicked(QModelIndex)), this, SLOT(outputFolderViewClicked(QModelIndex)));
	connect(outputFolderView, SIGNAL(activated(QModelIndex)), this, SLOT(outputFolderViewClicked(QModelIndex)));
	connect(outputFolderView, SIGNAL(pressed(QModelIndex)), this, SLOT(outputFolderViewClicked(QModelIndex)));
	connect(outputFolderView, SIGNAL(entered(QModelIndex)), this, SLOT(outputFolderViewMoved(QModelIndex)));
	outputFolderView->setCurrentIndex(m_fileSystemModel->index(m_settings->outputDir()));
	outputFolderViewClicked(outputFolderView->currentIndex());
	connect(buttonMakeFolder, SIGNAL(clicked()), this, SLOT(makeFolderButtonClicked()));
	connect(buttonGotoHome, SIGNAL(clicked()), SLOT(gotoHomeFolderButtonClicked()));
	connect(buttonGotoDesktop, SIGNAL(clicked()), this, SLOT(gotoDesktopButtonClicked()));
	connect(buttonGotoMusic, SIGNAL(clicked()), this, SLOT(gotoMusicFolderButtonClicked()));
	connect(saveToSourceFolderCheckBox, SIGNAL(clicked()), this, SLOT(saveToSourceFolderChanged()));
	connect(prependRelativePathCheckBox, SIGNAL(clicked()), this, SLOT(prependRelativePathChanged()));
	m_outputFolderContextMenu = new QMenu();
	m_showFolderContextAction = m_outputFolderContextMenu->addAction(QIcon(":/icons/zoom.png"), "N/A");
	connect(outputFolderView, SIGNAL(customContextMenuRequested(QPoint)), this, SLOT(outputFolderContextMenu(QPoint)));
	connect(m_showFolderContextAction, SIGNAL(triggered(bool)), this, SLOT(showFolderContextActionTriggered()));
	outputFolderLabel->installEventFilter(this);
	
	//Setup "Meta Data" tab
	m_metaInfoModel = new MetaInfoModel(m_metaData, 6);
	m_metaInfoModel->clearData();
	metaDataView->setModel(m_metaInfoModel);
	metaDataView->verticalHeader()->setResizeMode(QHeaderView::ResizeToContents);
	metaDataView->verticalHeader()->hide();
	metaDataView->horizontalHeader()->setResizeMode(QHeaderView::ResizeToContents);
	while(writeMetaDataCheckBox->isChecked() != m_settings->writeMetaTags()) writeMetaDataCheckBox->click();
	generatePlaylistCheckBox->setChecked(m_settings->createPlaylist());
	connect(buttonEditMeta, SIGNAL(clicked()), this, SLOT(editMetaButtonClicked()));
	connect(buttonClearMeta, SIGNAL(clicked()), this, SLOT(clearMetaButtonClicked()));
	connect(writeMetaDataCheckBox, SIGNAL(clicked()), this, SLOT(metaTagsEnabledChanged()));
	connect(generatePlaylistCheckBox, SIGNAL(clicked()), this, SLOT(playlistEnabledChanged()));

	//Setup "Compression" tab
	m_encoderButtonGroup = new QButtonGroup(this);
	m_encoderButtonGroup->addButton(radioButtonEncoderMP3, SettingsModel::MP3Encoder);
	m_encoderButtonGroup->addButton(radioButtonEncoderVorbis, SettingsModel::VorbisEncoder);
	m_encoderButtonGroup->addButton(radioButtonEncoderAAC, SettingsModel::AACEncoder);
	m_encoderButtonGroup->addButton(radioButtonEncoderFLAC, SettingsModel::FLACEncoder);
	m_encoderButtonGroup->addButton(radioButtonEncoderPCM, SettingsModel::PCMEncoder);
	m_modeButtonGroup = new QButtonGroup(this);
	m_modeButtonGroup->addButton(radioButtonModeQuality, SettingsModel::VBRMode);
	m_modeButtonGroup->addButton(radioButtonModeAverageBitrate, SettingsModel::ABRMode);
	m_modeButtonGroup->addButton(radioButtonConstBitrate, SettingsModel::CBRMode);
	radioButtonEncoderMP3->setChecked(m_settings->compressionEncoder() == SettingsModel::MP3Encoder);
	radioButtonEncoderVorbis->setChecked(m_settings->compressionEncoder() == SettingsModel::VorbisEncoder);
	radioButtonEncoderAAC->setChecked(m_settings->compressionEncoder() == SettingsModel::AACEncoder);
	radioButtonEncoderFLAC->setChecked(m_settings->compressionEncoder() == SettingsModel::FLACEncoder);
	radioButtonEncoderPCM->setChecked(m_settings->compressionEncoder() == SettingsModel::PCMEncoder);
	radioButtonModeQuality->setChecked(m_settings->compressionRCMode() == SettingsModel::VBRMode);
	radioButtonModeAverageBitrate->setChecked(m_settings->compressionRCMode() == SettingsModel::ABRMode);
	radioButtonConstBitrate->setChecked(m_settings->compressionRCMode() == SettingsModel::CBRMode);
	sliderBitrate->setValue(m_settings->compressionBitrate());
	connect(m_encoderButtonGroup, SIGNAL(buttonClicked(int)), this, SLOT(updateEncoder(int)));
	connect(m_modeButtonGroup, SIGNAL(buttonClicked(int)), this, SLOT(updateRCMode(int)));
	connect(sliderBitrate, SIGNAL(valueChanged(int)), this, SLOT(updateBitrate(int)));
	updateEncoder(m_encoderButtonGroup->checkedId());

	//Activate file menu actions
	connect(actionOpenFolder, SIGNAL(triggered()), this, SLOT(openFolderActionActivated()));

	//Activate view menu actions
	m_tabActionGroup = new QActionGroup(this);
	m_tabActionGroup->addAction(actionSourceFiles);
	m_tabActionGroup->addAction(actionOutputDirectory);
	m_tabActionGroup->addAction(actionCompression);
	m_tabActionGroup->addAction(actionMetaData);
	m_tabActionGroup->addAction(actionAdvancedOptions);
	actionSourceFiles->setUserData(0, new Index(0));
	actionOutputDirectory->setUserData(0, new Index(1));
	actionMetaData->setUserData(0, new Index(2));
	actionCompression->setUserData(0, new Index(3));
	actionAdvancedOptions->setUserData(0, new Index(4));
	actionSourceFiles->setChecked(true);
	connect(m_tabActionGroup, SIGNAL(triggered(QAction*)), this, SLOT(tabActionActivated(QAction*)));

	//Activate style menu actions
	m_styleActionGroup = new QActionGroup(this);
	m_styleActionGroup->addAction(actionStylePlastique);
	m_styleActionGroup->addAction(actionStyleCleanlooks);
	m_styleActionGroup->addAction(actionStyleWindowsVista);
	m_styleActionGroup->addAction(actionStyleWindowsXP);
	m_styleActionGroup->addAction(actionStyleWindowsClassic);
	actionStylePlastique->setUserData(0, new Index(0));
	actionStyleCleanlooks->setUserData(0, new Index(1));
	actionStyleWindowsVista->setUserData(0, new Index(2));
	actionStyleWindowsXP->setUserData(0, new Index(3));
	actionStyleWindowsClassic->setUserData(0, new Index(4));
	actionStylePlastique->setChecked(true);
	actionStyleWindowsXP->setEnabled((QSysInfo::windowsVersion() & QSysInfo::WV_NT_based) >= QSysInfo::WV_XP);
	actionStyleWindowsVista->setEnabled((QSysInfo::windowsVersion() & QSysInfo::WV_NT_based) >= QSysInfo::WV_VISTA);
	connect(m_styleActionGroup, SIGNAL(triggered(QAction*)), this, SLOT(styleActionActivated(QAction*)));
	styleActionActivated(NULL);

	//Populate the language menu
	m_languageActionGroup = new QActionGroup(this);
	connect(m_languageActionGroup, SIGNAL(triggered(QAction*)), this, SLOT(languageActionActivated(QAction*)));
	QStringList translations = lamexp_query_translations();
	while(!translations.isEmpty())
	{
		QString langId = translations.takeFirst();
		QAction *currentLanguage = new QAction(this);
		currentLanguage->setData(langId);
		currentLanguage->setText(lamexp_translation_name(langId));
		currentLanguage->setIcon(QIcon(QString(":/flags/%1.png").arg(langId)));
		currentLanguage->setCheckable(true);
		m_languageActionGroup->addAction(currentLanguage);
		menuLanguage->addAction(currentLanguage);
	}

	//Activate tools menu actions
	actionDisableUpdateReminder->setChecked(!m_settings->autoUpdateEnabled());
	actionDisableSounds->setChecked(!m_settings->soundsEnabled());
	actionDisableNeroAacNotifications->setChecked(!m_settings->neroAacNotificationsEnabled());
	actionDisableWmaDecoderNotifications->setChecked(!m_settings->wmaDecoderNotificationsEnabled());
	connect(actionDisableUpdateReminder, SIGNAL(triggered(bool)), this, SLOT(disableUpdateReminderActionTriggered(bool)));
	connect(actionDisableSounds, SIGNAL(triggered(bool)), this, SLOT(disableSoundsActionTriggered(bool)));
	connect(actionInstallWMADecoder, SIGNAL(triggered(bool)), this, SLOT(installWMADecoderActionTriggered(bool)));
	connect(actionDisableNeroAacNotifications, SIGNAL(triggered(bool)), this, SLOT(disableNeroAacNotificationsActionTriggered(bool)));
	connect(actionDisableWmaDecoderNotifications, SIGNAL(triggered(bool)), this, SLOT(disableWmaDecoderNotificationsActionTriggered(bool)));
	connect(actionShowDropBoxWidget, SIGNAL(triggered(bool)), this, SLOT(showDropBoxWidgetActionTriggered(bool)));
		
	//Activate help menu actions
	connect(actionCheckUpdates, SIGNAL(triggered()), this, SLOT(checkUpdatesActionActivated()));
	connect(actionVisitHomepage, SIGNAL(triggered()), this, SLOT(visitHomepageActionActivated()));
	
	//Center window in screen
	QRect desktopRect = QApplication::desktop()->screenGeometry();
	QRect thisRect = this->geometry();
	move((desktopRect.width() - thisRect.width()) / 2, (desktopRect.height() - thisRect.height()) / 2);
	setMinimumSize(thisRect.width(), thisRect.height());

	//Create banner
	m_banner = new WorkingBanner(this);

	//Create DropBox widget
	m_dropBox = new DropBox(this, m_fileListModel, m_settings);
	connect(m_fileListModel, SIGNAL(modelReset()), m_dropBox, SLOT(modelChanged()));
	connect(m_fileListModel, SIGNAL(rowsInserted(QModelIndex,int,int)), m_dropBox, SLOT(modelChanged()));
	connect(m_fileListModel, SIGNAL(rowsRemoved(QModelIndex,int,int)), m_dropBox, SLOT(modelChanged()));

	//Create message handler thread
	m_messageHandler = new MessageHandlerThread();
	m_delayedFileList = new QStringList();
	m_delayedFileTimer = new QTimer();
	connect(m_messageHandler, SIGNAL(otherInstanceDetected()), this, SLOT(notifyOtherInstance()), Qt::QueuedConnection);
	connect(m_messageHandler, SIGNAL(fileReceived(QString)), this, SLOT(addFileDelayed(QString)), Qt::QueuedConnection);
	connect(m_messageHandler, SIGNAL(killSignalReceived()), this, SLOT(close()), Qt::QueuedConnection);
	connect(m_delayedFileTimer, SIGNAL(timeout()), this, SLOT(handleDelayedFiles()));
	m_messageHandler->start();

	//Load translation & re-translate UI
	QList<QAction*> languageActions = m_languageActionGroup->actions();
	while(!languageActions.isEmpty())
	{
		QAction *currentLanguage = languageActions.takeFirst();
		if(currentLanguage->data().toString().compare(m_settings->currentLanguage(), Qt::CaseInsensitive) == 0)
		{
			currentLanguage->setChecked(true);
			languageActionActivated(currentLanguage);
		}
	}
	if(m_languageActionGroup->checkedAction() == NULL)
	{
		qWarning("No langauge is currently selected, going to select FIRST one!");
		m_languageActionGroup->actions().first()->setChecked(true);
		languageActionActivated(m_languageActionGroup->actions().first());
	}

	//Enable Drag & Drop
	this->setAcceptDrops(true);
}

////////////////////////////////////////////////////////////
// Destructor
////////////////////////////////////////////////////////////

MainWindow::~MainWindow(void)
{
	//Stop message handler thread
	if(m_messageHandler && m_messageHandler->isRunning())
	{
		m_messageHandler->stop();
		if(!m_messageHandler->wait(10000))
		{
			m_messageHandler->terminate();
			m_messageHandler->wait();
		}
	}

	//Unset models
	sourceFileView->setModel(NULL);
	metaDataView->setModel(NULL);

	//Free memory
	LAMEXP_DELETE(m_tabActionGroup);
	LAMEXP_DELETE(m_styleActionGroup);
	LAMEXP_DELETE(m_languageActionGroup);
	LAMEXP_DELETE(m_banner);
	LAMEXP_DELETE(m_fileSystemModel);
	LAMEXP_DELETE(m_messageHandler);
	LAMEXP_DELETE(m_delayedFileList);
	LAMEXP_DELETE(m_delayedFileTimer);
	LAMEXP_DELETE(m_metaInfoModel);
	LAMEXP_DELETE(m_encoderButtonGroup);
	LAMEXP_DELETE(m_encoderButtonGroup);
	LAMEXP_DELETE(m_sourceFilesContextMenu);
	LAMEXP_DELETE(m_dropBox);

}

////////////////////////////////////////////////////////////
// PRIVATE FUNCTIONS
////////////////////////////////////////////////////////////

/*
 * Add file to source list
 */
void MainWindow::addFiles(const QStringList &files)
{
	if(files.isEmpty())
	{
		return;
	}

	tabWidget->setCurrentIndex(0);

	FileAnalyzer *analyzer = new FileAnalyzer(files);
	connect(analyzer, SIGNAL(fileSelected(QString)), m_banner, SLOT(setText(QString)), Qt::QueuedConnection);
	connect(analyzer, SIGNAL(fileAnalyzed(AudioFileModel)), m_fileListModel, SLOT(addFile(AudioFileModel)), Qt::QueuedConnection);

	m_banner->show(tr("Adding file(s), please wait..."), analyzer);

	if(analyzer->filesDenied())
	{
		QMessageBox::warning(this, tr("Access Denied"), QString("<nobr>%1<br>%2</nobr>").arg(tr("%1 file(s) have been rejected, because read access was not granted!").arg(analyzer->filesDenied()), tr("This usually means the file is locked by another process.")));
	}
	if(analyzer->filesRejected())
	{
		QMessageBox::warning(this, tr("Files Rejected"), QString("<nobr>%1<br>%2</nobr>").arg(tr("%1 file(s) have been rejected, because the file format could not be recognized!").arg(analyzer->filesRejected()), tr("This usually means the file is damaged or the file format is not supported.")));
	}

	LAMEXP_DELETE(analyzer);
	sourceFileView->scrollToBottom();
	m_banner->close();
}

////////////////////////////////////////////////////////////
// EVENTS
////////////////////////////////////////////////////////////

/*
 * Window is about to be shown
 */
void MainWindow::showEvent(QShowEvent *event)
{
	m_accepted = false;
	m_dropNoteLabel->setGeometry(0, 0, sourceFileView->width(), sourceFileView->height());
	sourceModelChanged();
	tabWidget->setCurrentIndex(0);

	if(m_firstTimeShown)
	{
		m_firstTimeShown = false;
		QTimer::singleShot(0, this, SLOT(windowShown()));
	}
	else
	{
		if(m_settings->dropBoxWidgetEnabled())
		{
			m_dropBox->setVisible(true);
		}
	}
}

/*
 * Re-translate the UI
 */
void MainWindow::changeEvent(QEvent *e)
{
	if(e->type() == QEvent::LanguageChange)
	{
		Ui::MainWindow::retranslateUi(this);

		if(lamexp_version_demo())
		{
			setWindowTitle(QString("%1 [%2]").arg(windowTitle(), tr("DEMO VERSION")));
		}
	
		m_dropNoteLabel->setText(QString("» %1 «").arg(tr("You can drop in audio files here!")));
		m_showDetailsContextAction->setText(tr("Show Details"));
		m_previewContextAction->setText(tr("Open File in External Application"));
		m_findFileContextAction->setText(tr("Browse File Location"));
		m_showFolderContextAction->setText(tr("Browse Selected Folder"));
	}
}

/*
 * File dragged over window
 */
void MainWindow::dragEnterEvent(QDragEnterEvent *event)
{
	QStringList formats = event->mimeData()->formats();
	
	if(formats.contains("application/x-qt-windows-mime;value=\"FileNameW\"", Qt::CaseInsensitive) && formats.contains("text/uri-list", Qt::CaseInsensitive))
	{
		event->acceptProposedAction();
	}
}

/*
 * File dropped onto window
 */
void MainWindow::dropEvent(QDropEvent *event)
{
	ABORT_IF_BUSY;

	QStringList droppedFiles;
	const QList<QUrl> urls = event->mimeData()->urls();

	for(int i = 0; i < urls.count(); i++)
	{
		QFileInfo file(urls.at(i).toLocalFile());
		if(!file.exists())
		{
			continue;
		}
		if(file.isFile())
		{
			droppedFiles << file.canonicalFilePath();
			continue;
		}
		if(file.isDir())
		{
			QList<QFileInfo> list = QDir(file.canonicalFilePath()).entryInfoList(QDir::Files);
			for(int j = 0; j < list.count(); j++)
			{
				droppedFiles << list.at(j).canonicalFilePath();
			}
		}
	}
	
	addFiles(droppedFiles);
}

/*
 * Window tries to close
 */
void MainWindow::closeEvent(QCloseEvent *event)
{
	if(m_banner->isVisible() || m_delayedFileTimer->isActive())
	{
		MessageBeep(MB_ICONEXCLAMATION);
		event->ignore();
	}
	
	if(m_dropBox)
	{
		m_dropBox->hide();
	}
}

/*
 * Window was resized
 */
void MainWindow::resizeEvent(QResizeEvent *event)
{
	QMainWindow::resizeEvent(event);
	m_dropNoteLabel->setGeometry(0, 0, sourceFileView->width(), sourceFileView->height());
}

/*
 * Event filter
 */
bool MainWindow::eventFilter(QObject *obj, QEvent *event)
{
	if(obj == m_fileSystemModel && QApplication::overrideCursor() == NULL)
	{
		QApplication::setOverrideCursor(QCursor(Qt::WaitCursor));
		QTimer::singleShot(250, this, SLOT(restoreCursor()));
	}
	else if(obj == outputFolderLabel)
	{
		switch(event->type())
		{
		case QEvent::MouseButtonPress:
			if(dynamic_cast<QMouseEvent*>(event)->button() == Qt::LeftButton)
			{
				QDesktopServices::openUrl(QString("file:///%1").arg(outputFolderLabel->text()));
			}
			break;
		case QEvent::Enter:
			outputFolderLabel->setForegroundRole(QPalette::Link);
			break;
		case QEvent::Leave:
			outputFolderLabel->setForegroundRole(QPalette::WindowText);
			break;
		}
	}
	return false;
}

////////////////////////////////////////////////////////////
// Slots
////////////////////////////////////////////////////////////

/*
 * Window shown
 */
void MainWindow::windowShown(void)
{
	QStringList arguments = QApplication::arguments();

	//Check license
	if(m_settings->licenseAccepted() <= 0)
	{
		int iAccepted = -1;

		if(m_settings->licenseAccepted() == 0)
		{
			AboutDialog *about = new AboutDialog(m_settings, this, true);
			iAccepted = about->exec();
			LAMEXP_DELETE(about);
		}

		if(iAccepted <= 0)
		{
			m_settings->licenseAccepted(-1);
			QApplication::processEvents();
			PlaySound(MAKEINTRESOURCE(IDR_WAVE_WHAMMY), GetModuleHandle(NULL), SND_RESOURCE | SND_SYNC);
			QMessageBox::critical(this, tr("License Declined"), tr("You have declined the license. Consequently the application will exit now!"), tr("Goodbye!"));
			QProcess::startDetached(QString("%1/Uninstall.exe").arg(QApplication::applicationDirPath()), QStringList());
			QApplication::quit();
			return;
		}
		
		PlaySound(MAKEINTRESOURCE(IDR_WAVE_WOOHOO), GetModuleHandle(NULL), SND_RESOURCE | SND_SYNC);
		m_settings->licenseAccepted(1);
	}
	
	//Check for expiration
	if(lamexp_version_demo())
	{
		QDate expireDate = lamexp_version_date().addDays(14);
		if(QDate::currentDate() >= expireDate)
		{
			qWarning("Binary has expired !!!");
			PlaySound(MAKEINTRESOURCE(IDR_WAVE_WHAMMY), GetModuleHandle(NULL), SND_RESOURCE | SND_SYNC);
			if(QMessageBox::warning(this, tr("LameXP - Expired"), tr("This demo (pre-release) version of LameXP has expired at %1.\nLameXP is free software and release versions won't expire.").arg(expireDate.toString(Qt::ISODate)), tr("Check for Updates"), tr("Exit Program")) == 0)
			{
				checkUpdatesActionActivated();
			}
			QApplication::quit();
			return;
		}
	}

	//Update reminder
	if(QDate::currentDate() >= lamexp_version_date().addYears(1))
	{
		qWarning("Binary is more than a year old, time to update!");
		if(QMessageBox::warning(this, tr("Urgent Update"), tr("Your version of LameXP is more than a year old. Time for an update!"), tr("Check for Updates"), tr("Exit Program")) == 0)
		{
			checkUpdatesActionActivated();
		}
		else
		{
			QApplication::quit();
			return;
		}
	}
	else if(m_settings->autoUpdateEnabled())
	{
		QDate lastUpdateCheck = QDate::fromString(m_settings->autoUpdateLastCheck(), Qt::ISODate);
		if(!lastUpdateCheck.isValid() || QDate::currentDate() >= lastUpdateCheck.addDays(14))
		{
			if(QMessageBox::information(this, tr("Update Reminer"), (lastUpdateCheck.isValid() ? tr("Your last update check was more than 14 days ago. Check for updates now?") : tr("Your did not check for LameXP updates yet. Check for updates now?")), tr("Check for Updates"), tr("Postpone")) == 0)
			{
				checkUpdatesActionActivated();
			}
		}
	}

	//Check for AAC support
	if(m_settings->neroAacNotificationsEnabled())
	{
		if(lamexp_check_tool("neroAacEnc.exe") && lamexp_check_tool("neroAacDec.exe") && lamexp_check_tool("neroAacTag.exe"))
		{
			if(lamexp_tool_version("neroAacEnc.exe") < lamexp_toolver_neroaac())
			{
				QString messageText;
				messageText += QString("<nobr>%1<br>").arg(tr("LameXP detected that your version of the Nero AAC encoder is outdated!"));
				messageText += QString("%1<br><br>").arg(tr("The current version available is %1 (or later), but you still have version %2 installed.").arg(lamexp_version2string("?.?.?.?", lamexp_toolver_neroaac()), lamexp_version2string("?.?.?.?", lamexp_tool_version("neroAacEnc.exe"))));
				messageText += QString("%1<br>").arg(tr("You can download the latest version of the Nero AAC encoder from the Nero website at:"));
				messageText += "<b>" + LINK(AboutDialog::neroAacUrl) + "</b><br></nobr>";
				QMessageBox::information(this, tr("AAC Encoder Outdated"), messageText);
			}
		}
		else
		{
			radioButtonEncoderAAC->setEnabled(false);
			QString messageText;
			messageText += QString("<nobr>%1<br>").arg(tr("The Nero AAC encoder could not be found. AAC encoding support will be disabled."));
			messageText += QString("%1<br><br>").arg(tr("Please put 'neroAacEnc.exe', 'neroAacDec.exe' and 'neroAacTag.exe' into the LameXP directory!"));
			messageText += QString("%1<br>").arg(tr("Your LameXP directory is located here:"));
			messageText += QString("<i><nobr><a href=\"file:///%1\">%1</a></nobr></i><br><br>").arg(QDir::toNativeSeparators(QCoreApplication::applicationDirPath()));
			messageText += QString("%1<br>").arg(tr("You can download the Nero AAC encoder for free from the official Nero website at:"));
			messageText += "<b>" + LINK(AboutDialog::neroAacUrl) + "</b><br></nobr>";
			QMessageBox::information(this, tr("AAC Support Disabled"), messageText);
		}
	}
	
	//Check for WMA support
	if(m_settings->wmaDecoderNotificationsEnabled())
	{
		if(!lamexp_check_tool("wmawav.exe"))
		{
			QString messageText;
			messageText += QString("<nobr>%1<br>").arg(tr("LameXP has detected that the WMA File Decoder component is not currently installed on your system."));
			messageText += QString("%1</nobr>").arg(tr("You won't be able to process WMA files as input unless the WMA File Decoder component is installed!"));
			QMessageBox::information(this, tr("WMA Decoder Missing"), messageText);
			installWMADecoderActionTriggered(rand() % 2);
		}
	}

	//Add files from the command-line
	for(int i = 0; i < arguments.count() - 1; i++)
	{
		if(!arguments[i].compare("--add", Qt::CaseInsensitive))
		{
			QFileInfo currentFile(arguments[++i].trimmed());
			qDebug("Adding file from CLI: %s", currentFile.canonicalFilePath().toUtf8().constData());
			m_delayedFileList->append(currentFile.canonicalFilePath());
		}
	}

	//Start delayed files timer
	if(!m_delayedFileList->isEmpty() && !m_delayedFileTimer->isActive())
	{
		m_delayedFileTimer->start(5000);
	}

	//Make DropBox visible
	if(m_settings->dropBoxWidgetEnabled())
	{
		m_dropBox->setVisible(true);
	}
}

/*
 * About button
 */
void MainWindow::aboutButtonClicked(void)
{
	ABORT_IF_BUSY;
	if(m_dropBox->isVisible()) m_dropBox->hide();
	AboutDialog *aboutBox = new AboutDialog(m_settings, this);
	aboutBox->exec();
	LAMEXP_DELETE(aboutBox);
	if(m_settings->dropBoxWidgetEnabled()) m_dropBox->show();
}

/*
 * Encode button
 */
void MainWindow::encodeButtonClicked(void)
{
	static const __int64 oneGigabyte = 1073741824; 
	static const __int64 minimumFreeDiskspaceMultiplier = 2;
	
	ABORT_IF_BUSY;

	if(m_fileListModel->rowCount() < 1)
	{
		QMessageBox::warning(this, tr("LameXP"), tr("You must add at least one file to the list before proceeding!"));
		tabWidget->setCurrentIndex(0);
		return;
	}
	
	__int64 currentFreeDiskspace = lamexp_free_diskspace(lamexp_temp_folder());

	if(currentFreeDiskspace < (oneGigabyte * minimumFreeDiskspaceMultiplier))
	{
		QStringList tempFolderParts = lamexp_temp_folder().split("/", QString::SkipEmptyParts, Qt::CaseInsensitive);
		tempFolderParts.takeLast();
		if(m_settings->soundsEnabled()) PlaySound(MAKEINTRESOURCE(IDR_WAVE_WHAMMY), GetModuleHandle(NULL), SND_RESOURCE | SND_SYNC);
		switch(QMessageBox::warning(this, tr("Low Diskspace Warning"), QString("<nobr>%1</nobr><br><nobr>%2</nobr><br><br>%3").arg(tr("There are less than %1 GB of free diskspace available on your system's TEMP folder.").arg(QString::number(minimumFreeDiskspaceMultiplier)), tr("It is highly recommend to free up more diskspace before proceeding with the encode!"), tr("Your TEMP folder is located at:")).append("<br><nobr><i><a href=\"file:///%3\">%3</a></i></nobr><br>").arg(tempFolderParts.join("\\")), tr("Abort Encoding Process"), tr("Clean Disk Now"), tr("Ignore")))
		{
		case 1:
			QProcess::startDetached(QString("%1/cleanmgr.exe").arg(lamexp_known_folder(lamexp_folder_systemfolder)), QStringList() << "/D" << tempFolderParts.first());
		case 0:
			return;
			break;
		default:
			QMessageBox::warning(this, tr("Low Diskspace"), tr("You are proceeding with low diskspace. Problems might occur!"));
			break;
		}
	}

	switch(m_settings->compressionEncoder())
	{
	case SettingsModel::MP3Encoder:
	case SettingsModel::VorbisEncoder:
	case SettingsModel::AACEncoder:
	case SettingsModel::FLACEncoder:
	case SettingsModel::PCMEncoder:
		break;
	default:
		QMessageBox::warning(this, tr("LameXP"), tr("Sorry, an unsupported encoder has been chosen!"));
		tabWidget->setCurrentIndex(3);
		return;
	}

	if(!m_settings->outputToSourceDir())
	{
		QFile writeTest(QString("%1/~%2.txt").arg(m_settings->outputDir(), QUuid::createUuid().toString()));
		if(!writeTest.open(QIODevice::ReadWrite))
		{
			QMessageBox::warning(this, tr("LameXP"), QString("%1<br><nobr>%2</nobr><br><br>%3").arg(tr("Cannot write to the selected output directory."), m_settings->outputDir(), tr("Please choose a different directory!")));
			tabWidget->setCurrentIndex(1);
			return;
		}
		else
		{
			writeTest.close();
			writeTest.remove();
		}
	}
		
	m_accepted = true;
	close();
}

/*
 * Close button
 */
void MainWindow::closeButtonClicked(void)
{
	ABORT_IF_BUSY;
	close();
}

/*
 * Add file(s) button
 */
void MainWindow::addFilesButtonClicked(void)
{
	ABORT_IF_BUSY;
	QStringList fileTypeFilters = DecoderRegistry::getSupportedTypes();
	QStringList selectedFiles = QFileDialog::getOpenFileNames(this, tr("Add file(s)"), QString(), fileTypeFilters.join(";;"));
	addFiles(selectedFiles);
}

/*
 * Open folder action
 */
void MainWindow::openFolderActionActivated(void)
{
	ABORT_IF_BUSY;
	QString selectedFolder = QFileDialog::getExistingDirectory(this, tr("Add folder"), QDesktopServices::storageLocation(QDesktopServices::MusicLocation));
	
	if(!selectedFolder.isEmpty())
	{
		QDir sourceDir(selectedFolder);
		QFileInfoList fileInfoList = sourceDir.entryInfoList(QDir::Files);
		QStringList fileList;

		while(!fileInfoList.isEmpty())
		{
			fileList << fileInfoList.takeFirst().canonicalFilePath();
		}

		addFiles(fileList);
	}
}

/*
 * Remove file button
 */
void MainWindow::removeFileButtonClicked(void)
{
	if(sourceFileView->currentIndex().isValid())
	{
		int iRow = sourceFileView->currentIndex().row();
		m_fileListModel->removeFile(sourceFileView->currentIndex());
		sourceFileView->selectRow(iRow < m_fileListModel->rowCount() ? iRow : m_fileListModel->rowCount()-1);
	}
}

/*
 * Clear files button
 */
void MainWindow::clearFilesButtonClicked(void)
{
	m_fileListModel->clearFiles();
}

/*
 * Move file up button
 */
void MainWindow::fileUpButtonClicked(void)
{
	if(sourceFileView->currentIndex().isValid())
	{
		int iRow = sourceFileView->currentIndex().row() - 1;
		m_fileListModel->moveFile(sourceFileView->currentIndex(), -1);
		sourceFileView->selectRow(iRow >= 0 ? iRow : 0);
	}
}

/*
 * Move file down button
 */
void MainWindow::fileDownButtonClicked(void)
{
	if(sourceFileView->currentIndex().isValid())
	{
		int iRow = sourceFileView->currentIndex().row() + 1;
		m_fileListModel->moveFile(sourceFileView->currentIndex(), 1);
		sourceFileView->selectRow(iRow < m_fileListModel->rowCount() ? iRow : m_fileListModel->rowCount()-1);
	}
}

/*
 * Show details button
 */
void MainWindow::showDetailsButtonClicked(void)
{
	ABORT_IF_BUSY;

	int iResult = 0;
	MetaInfoDialog *metaInfoDialog = new MetaInfoDialog(this);
	QModelIndex index = sourceFileView->currentIndex();

	while(index.isValid())
	{
		if(iResult > 0)
		{
			index = m_fileListModel->index(index.row() + 1, index.column()); 
			sourceFileView->selectRow(index.row());
		}
		if(iResult < 0)
		{
			index = m_fileListModel->index(index.row() - 1, index.column()); 
			sourceFileView->selectRow(index.row());
		}

		AudioFileModel &file = (*m_fileListModel)[index];
		iResult = metaInfoDialog->exec(file, index.row() > 0, index.row() < m_fileListModel->rowCount() - 1);

		if(!iResult) break;
	}

	LAMEXP_DELETE(metaInfoDialog);
}

/*
 * Tab page changed
 */
void MainWindow::tabPageChanged(int idx)
{
	QList<QAction*> actions = m_tabActionGroup->actions();
	for(int i = 0; i < actions.count(); i++)
	{
		if(actions.at(i)->userData(0) && dynamic_cast<Index*>(actions.at(i)->userData(0))->value() == idx)
		{
			actions.at(i)->setChecked(true);
		}
	}
}

/*
 * Tab action triggered
 */
void MainWindow::tabActionActivated(QAction *action)
{
	if(action && action->userData(0))
	{
		int index = dynamic_cast<Index*>(action->userData(0))->value();
		tabWidget->setCurrentIndex(index);
	}
}

/*
 * Style action triggered
 */
void MainWindow::styleActionActivated(QAction *action)
{
	if(action && action->userData(0))
	{
		m_settings->interfaceStyle(dynamic_cast<Index*>(action->userData(0))->value());
	}

	switch(m_settings->interfaceStyle())
	{
	case 1:
		actionStyleCleanlooks->setChecked(true);
		QApplication::setStyle(new QCleanlooksStyle());
		break;
	case 2:
		actionStyleWindowsVista->setChecked(true);
		QApplication::setStyle(new QWindowsVistaStyle());
		break;
	case 3:
		actionStyleWindowsXP->setChecked(true);
		QApplication::setStyle(new QWindowsXPStyle());
		break;
	case 4:
		actionStyleWindowsClassic->setChecked(true);
		QApplication::setStyle(new QWindowsStyle());
		break;
	default:
		actionStylePlastique->setChecked(true);
		QApplication::setStyle(new QPlastiqueStyle());
		break;
	}
}

/*
 * Language action triggered
 */
void MainWindow::languageActionActivated(QAction *action)
{
	QString langId = action->data().toString();

	if(lamexp_install_translator(langId))
	{
		m_settings->currentLanguage(langId);
	}
}

/*
 * Output folder changed (mouse clicked)
 */
void MainWindow::outputFolderViewClicked(const QModelIndex &index)
{
	if(outputFolderView->currentIndex() != index)
	{
		outputFolderView->setCurrentIndex(index);
	}
	QString selectedDir = m_fileSystemModel->filePath(index);
	if(selectedDir.length() < 3) selectedDir.append(QDir::separator());
	outputFolderLabel->setText(QDir::toNativeSeparators(selectedDir));
	m_settings->outputDir(selectedDir);
}

/*
 * Output folder changed (mouse moved)
 */
void MainWindow::outputFolderViewMoved(const QModelIndex &index)
{
	if(QApplication::mouseButtons() & Qt::LeftButton)
	{
		outputFolderViewClicked(index);
	}
}

/*
 * Goto desktop button
 */
void MainWindow::gotoDesktopButtonClicked(void)
{
	QString desktopPath = QDesktopServices::storageLocation(QDesktopServices::DesktopLocation);
	
	if(!desktopPath.isEmpty() && QDir(desktopPath).exists())
	{
		outputFolderView->setCurrentIndex(m_fileSystemModel->index(desktopPath));
		outputFolderViewClicked(outputFolderView->currentIndex());
		outputFolderView->setFocus();
	}
	else
	{
		buttonGotoDesktop->setEnabled(false);
	}
}

/*
 * Goto home folder button
 */
void MainWindow::gotoHomeFolderButtonClicked(void)
{
	QString homePath = QDesktopServices::storageLocation(QDesktopServices::HomeLocation);
	
	if(!homePath.isEmpty() && QDir(homePath).exists())
	{
		outputFolderView->setCurrentIndex(m_fileSystemModel->index(homePath));
		outputFolderViewClicked(outputFolderView->currentIndex());
		outputFolderView->setFocus();
	}
	else
	{
		buttonGotoHome->setEnabled(false);
	}
}

/*
 * Goto music folder button
 */
void MainWindow::gotoMusicFolderButtonClicked(void)
{
	QString musicPath = QDesktopServices::storageLocation(QDesktopServices::MusicLocation);
	
	if(!musicPath.isEmpty() && QDir(musicPath).exists())
	{
		outputFolderView->setCurrentIndex(m_fileSystemModel->index(musicPath));
		outputFolderViewClicked(outputFolderView->currentIndex());
		outputFolderView->setFocus();
	}
	else
	{
		buttonGotoMusic->setEnabled(false);
	}
}

/*
 * Make folder button
 */
void MainWindow::makeFolderButtonClicked(void)
{
	ABORT_IF_BUSY;

	QDir basePath(m_fileSystemModel->fileInfo(outputFolderView->currentIndex()).absoluteFilePath());
	QString suggestedName = tr("New Folder");

	if(!m_metaData->fileArtist().isEmpty() && !m_metaData->fileAlbum().isEmpty())
	{
		suggestedName = QString("%1 - %2").arg(m_metaData->fileArtist(), m_metaData->fileAlbum());
	}
	else if(!m_metaData->fileArtist().isEmpty())
	{
		suggestedName = m_metaData->fileArtist();
	}
	else if(!m_metaData->fileAlbum().isEmpty())
	{
		suggestedName = m_metaData->fileAlbum();
	}
	else
	{
		for(int i = 0; i < m_fileListModel->rowCount(); i++)
		{
			AudioFileModel audioFile = m_fileListModel->getFile(m_fileListModel->index(i, 0));
			if(!audioFile.fileAlbum().isEmpty() || !audioFile.fileArtist().isEmpty())
			{
				if(!audioFile.fileArtist().isEmpty() && !audioFile.fileAlbum().isEmpty())
				{
					suggestedName = QString("%1 - %2").arg(audioFile.fileArtist(), audioFile.fileAlbum());
				}
				else if(!audioFile.fileArtist().isEmpty())
				{
					suggestedName = audioFile.fileArtist();
				}
				else if(!audioFile.fileAlbum().isEmpty())
				{
					suggestedName = audioFile.fileAlbum();
				}
				break;
			}
		}
	}
	
	while(true)
	{
		bool bApplied = false;
		QString folderName = QInputDialog::getText(this, tr("New Folder"), tr("Enter the name of the new folder:").leftJustified(96, ' '), QLineEdit::Normal, suggestedName, &bApplied, Qt::WindowStaysOnTopHint).simplified();

		if(bApplied)
		{
			folderName.remove(":", Qt::CaseInsensitive);
			folderName.remove("/", Qt::CaseInsensitive);
			folderName.remove("\\", Qt::CaseInsensitive);
			folderName.remove("?", Qt::CaseInsensitive);
			folderName.remove("*", Qt::CaseInsensitive);
			folderName.remove("<", Qt::CaseInsensitive);
			folderName.remove(">", Qt::CaseInsensitive);
			
			folderName = folderName.simplified();

			if(folderName.isEmpty())
			{
				MessageBeep(MB_ICONERROR);
				continue;
			}

			int i = 1;
			QString newFolder = folderName;

			while(basePath.exists(newFolder))
			{
				newFolder = QString(folderName).append(QString().sprintf(" (%d)", ++i));
			}
			
			if(basePath.mkdir(newFolder))
			{
				QDir createdDir = basePath;
				if(createdDir.cd(newFolder))
				{
					outputFolderView->setCurrentIndex(m_fileSystemModel->index(createdDir.canonicalPath()));
					outputFolderViewClicked(outputFolderView->currentIndex());
					outputFolderView->setFocus();
				}
			}
			else
			{
				QMessageBox::warning(this, tr("Failed to create folder"), QString("%1<br><nobr>%2</nobr><br><br>%3").arg(tr("The new folder could not be created:"), basePath.absoluteFilePath(newFolder), tr("Drive is read-only or insufficient access rights!")));
			}
		}
		break;
	}
}

/*
 * Edit meta button clicked
 */
void MainWindow::editMetaButtonClicked(void)
{
	ABORT_IF_BUSY;
	m_metaInfoModel->editItem(metaDataView->currentIndex(), this);
}

/*
 * Reset meta button clicked
 */
void MainWindow::clearMetaButtonClicked(void)
{
	ABORT_IF_BUSY;
	m_metaInfoModel->clearData();
}

/*
 * Visit homepage action
 */
void MainWindow::visitHomepageActionActivated(void)
{
	QDesktopServices::openUrl(QUrl("http://mulder.dummwiedeutsch.de/"));
}

/*
 * Check for updates action
 */
void MainWindow::checkUpdatesActionActivated(void)
{
	ABORT_IF_BUSY;
	
	if(m_dropBox->isVisible()) m_dropBox->hide();
	UpdateDialog *updateDialog = new UpdateDialog(m_settings, this);

	updateDialog->exec();
	if(updateDialog->getSuccess())
	{
		m_settings->autoUpdateLastCheck(QDate::currentDate().toString(Qt::ISODate));
	}

	LAMEXP_DELETE(updateDialog);
	if(m_settings->dropBoxWidgetEnabled()) m_dropBox->show();
}

/*
 * Other instance detected
 */
void MainWindow::notifyOtherInstance(void)
{
	if(!m_banner->isVisible())
	{
		QMessageBox msgBox(QMessageBox::Warning, tr("Already running"), tr("LameXP is already running, please use the running instance!"), QMessageBox::NoButton, this, Qt::Dialog | Qt::MSWindowsFixedSizeDialogHint | Qt::WindowStaysOnTopHint);
		msgBox.exec();
	}
}

/*
 * Add file from another instance
 */
void MainWindow::addFileDelayed(const QString &filePath)
{
	m_delayedFileTimer->stop();
	qDebug("Received file: %s", filePath.toUtf8().constData());
	m_delayedFileList->append(filePath);
	m_delayedFileTimer->start(5000);
}

/*
 * Add all pending files
 */
void MainWindow::handleDelayedFiles(void)
{
	if(m_banner->isVisible())
	{
		return;
	}
	
	m_delayedFileTimer->stop();
	if(m_delayedFileList->isEmpty())
	{
		return;
	}

	QStringList selectedFiles;
	tabWidget->setCurrentIndex(0);

	while(!m_delayedFileList->isEmpty())
	{
		QFileInfo currentFile = QFileInfo(m_delayedFileList->takeFirst());
		if(!currentFile.exists())
		{
			continue;
		}
		if(currentFile.isFile())
		{
			selectedFiles << currentFile.canonicalFilePath();
			continue;
		}
		if(currentFile.isDir())
		{
			QList<QFileInfo> list = QDir(currentFile.canonicalFilePath()).entryInfoList(QDir::Files);
			for(int j = 0; j < list.count(); j++)
			{
				selectedFiles << list.at(j).canonicalFilePath();
			}
		}
	}
	
	addFiles(selectedFiles);
}

/*
 * Update encoder
 */
void MainWindow::updateEncoder(int id)
{
	m_settings->compressionEncoder(id);

	switch(m_settings->compressionEncoder())
	{
	case SettingsModel::VorbisEncoder:
		radioButtonModeQuality->setEnabled(true);
		radioButtonModeAverageBitrate->setEnabled(true);
		radioButtonConstBitrate->setEnabled(false);
		if(radioButtonConstBitrate->isChecked()) radioButtonModeQuality->setChecked(true);
		sliderBitrate->setEnabled(true);
		break;
	case SettingsModel::FLACEncoder:
		radioButtonModeQuality->setEnabled(false);
		radioButtonModeQuality->setChecked(true);
		radioButtonModeAverageBitrate->setEnabled(false);
		radioButtonConstBitrate->setEnabled(false);
		sliderBitrate->setEnabled(true);
		break;
	case SettingsModel::PCMEncoder:
		radioButtonModeQuality->setEnabled(false);
		radioButtonModeQuality->setChecked(true);
		radioButtonModeAverageBitrate->setEnabled(false);
		radioButtonConstBitrate->setEnabled(false);
		sliderBitrate->setEnabled(false);
		break;
	default:
		radioButtonModeQuality->setEnabled(true);
		radioButtonModeAverageBitrate->setEnabled(true);
		radioButtonConstBitrate->setEnabled(true);
		sliderBitrate->setEnabled(true);
		break;
	}

	updateRCMode(m_modeButtonGroup->checkedId());
}

/*
 * Update rate-control mode
 */
void MainWindow::updateRCMode(int id)
{
	m_settings->compressionRCMode(id);

	switch(m_settings->compressionEncoder())
	{
	case SettingsModel::MP3Encoder:
		switch(m_settings->compressionRCMode())
		{
		case SettingsModel::VBRMode:
			sliderBitrate->setMinimum(0);
			sliderBitrate->setMaximum(9);
			break;
		default:
			sliderBitrate->setMinimum(0);
			sliderBitrate->setMaximum(13);
			break;
		}
		break;
	case SettingsModel::VorbisEncoder:
		switch(m_settings->compressionRCMode())
		{
		case SettingsModel::VBRMode:
			sliderBitrate->setMinimum(-2);
			sliderBitrate->setMaximum(10);
			break;
		default:
			sliderBitrate->setMinimum(4);
			sliderBitrate->setMaximum(63);
			break;
		}
		break;
	case SettingsModel::AACEncoder:
		switch(m_settings->compressionRCMode())
		{
		case SettingsModel::VBRMode:
			sliderBitrate->setMinimum(0);
			sliderBitrate->setMaximum(20);
			break;
		default:
			sliderBitrate->setMinimum(4);
			sliderBitrate->setMaximum(63);
			break;
		}
		break;
	case SettingsModel::FLACEncoder:
		sliderBitrate->setMinimum(0);
		sliderBitrate->setMaximum(8);
		break;
	case SettingsModel::PCMEncoder:
		sliderBitrate->setMinimum(0);
		sliderBitrate->setMaximum(2);
		sliderBitrate->setValue(1);
		break;
	default:
		sliderBitrate->setMinimum(0);
		sliderBitrate->setMaximum(0);
		break;
	}

	updateBitrate(sliderBitrate->value());
}

/*
 * Update bitrate
 */
void MainWindow::updateBitrate(int value)
{
	m_settings->compressionBitrate(value);
	
	switch(m_settings->compressionRCMode())
	{
	case SettingsModel::VBRMode:
		switch(m_settings->compressionEncoder())
		{
		case SettingsModel::MP3Encoder:
			labelBitrate->setText(tr("Quality Level %1").arg(9 - value));
			break;
		case SettingsModel::VorbisEncoder:
			labelBitrate->setText(tr("Quality Level %1").arg(value));
			break;
		case SettingsModel::AACEncoder:
			labelBitrate->setText(tr("Quality Level %1").arg(QString().sprintf("%.2f", static_cast<double>(value * 5) / 100.0)));
			break;
		case SettingsModel::FLACEncoder:
			labelBitrate->setText(tr("Compression %1").arg(value));
			break;
		case SettingsModel::PCMEncoder:
			labelBitrate->setText(tr("Uncompressed"));
			break;
		default:
			labelBitrate->setText(QString::number(value));
			break;
		}
		break;
	case SettingsModel::ABRMode:
		switch(m_settings->compressionEncoder())
		{
		case SettingsModel::MP3Encoder:
			labelBitrate->setText(QString("&asymp; %1 kbps").arg(SettingsModel::mp3Bitrates[value]));
			break;
		case SettingsModel::FLACEncoder:
			labelBitrate->setText(tr("Compression %1").arg(value));
			break;
		case SettingsModel::PCMEncoder:
			labelBitrate->setText(tr("Uncompressed"));
			break;
		default:
			labelBitrate->setText(QString("&asymp; %1 kbps").arg(min(500, value * 8)));
			break;
		}
		break;
	default:
		switch(m_settings->compressionEncoder())
		{
		case SettingsModel::MP3Encoder:
			labelBitrate->setText(QString("%1 kbps").arg(SettingsModel::mp3Bitrates[value]));
			break;
		case SettingsModel::FLACEncoder:
			labelBitrate->setText(tr("Compression %1").arg(value));
			break;
		case SettingsModel::PCMEncoder:
			labelBitrate->setText(tr("Uncompressed"));
			break;
		default:
			labelBitrate->setText(QString("%1 kbps").arg(min(500, value * 8)));
			break;
		}
		break;
	}
}

/*
 * Model reset
 */
void MainWindow::sourceModelChanged(void)
{
	m_dropNoteLabel->setVisible(m_fileListModel->rowCount() <= 0);
}

/*
 * Meta tags enabled changed
 */
void MainWindow::metaTagsEnabledChanged(void)
{
	m_settings->writeMetaTags(writeMetaDataCheckBox->isChecked());
}

/*
 * Playlist enabled changed
 */
void MainWindow::playlistEnabledChanged(void)
{
	m_settings->createPlaylist(generatePlaylistCheckBox->isChecked());
}

/*
 * Output to source dir changed
 */
void MainWindow::saveToSourceFolderChanged(void)
{
	m_settings->outputToSourceDir(saveToSourceFolderCheckBox->isChecked());
}

/*
 * Prepend relative source file path to output file name changed
 */
void MainWindow::prependRelativePathChanged(void)
{
	m_settings->prependRelativeSourcePath(prependRelativePathCheckBox->isChecked());
}


/*
 * Restore the override cursor
 */
void MainWindow::restoreCursor(void)
{
	QApplication::restoreOverrideCursor();
}

/*
 * Show context menu for source files
 */
void MainWindow::sourceFilesContextMenu(const QPoint &pos)
{
	if(pos.x() <= sourceFileView->width() && pos.y() <= sourceFileView->height() && pos.x() >= 0 && pos.y() >= 0)
	{
		m_sourceFilesContextMenu->popup(sourceFileView->mapToGlobal(pos));
	}
}

/*
 * Open selected file in external player
 */
void MainWindow::previewContextActionTriggered(void)
{
	const static char *appNames[3] = {"smplayer_portable.exe", "smplayer.exe", "mplayer.exe"};
	const static wchar_t *registryKey = L"SOFTWARE\\Wow6432Node\\Microsoft\\Windows\\CurrentVersion\\Uninstall\\{DB9E4EAB-2717-499F-8D56-4CC8A644AB60}";
	
	QModelIndex index = sourceFileView->currentIndex();
	if(!index.isValid())
	{
		return;
	}

	QString mplayerPath;
	HKEY registryKeyHandle;

	if(RegOpenKeyExW(HKEY_LOCAL_MACHINE, registryKey, 0, KEY_READ, &registryKeyHandle) == ERROR_SUCCESS)
	{
		wchar_t Buffer[4096];
		DWORD BuffSize = sizeof(wchar_t*) * 4096;
		if(RegQueryValueExW(registryKeyHandle, L"InstallLocation", 0, 0, reinterpret_cast<BYTE*>(Buffer), &BuffSize) == ERROR_SUCCESS)
		{
			mplayerPath = QString::fromUtf16(reinterpret_cast<const unsigned short*>(Buffer));
		}
	}

	if(!mplayerPath.isEmpty())
	{
		QDir mplayerDir(mplayerPath);
		if(mplayerDir.exists())
		{
			for(int i = 0; i < 3; i++)
			{
				if(mplayerDir.exists(appNames[i]))
				{
					QProcess::startDetached(mplayerDir.absoluteFilePath(appNames[i]), QStringList() << QDir::toNativeSeparators(m_fileListModel->getFile(index).filePath()));
					return;
				}
			}
		}
	}
	
	QDesktopServices::openUrl(QString("file:///").append(m_fileListModel->getFile(index).filePath()));
}

/*
 * Find selected file in explorer
 */
void MainWindow::findFileContextActionTriggered(void)
{
	QModelIndex index = sourceFileView->currentIndex();
	if(index.isValid())
	{
		QProcessEnvironment procEnv = QProcessEnvironment::systemEnvironment();
		QString systemRootPath = procEnv.value("SystemRoot", procEnv.value("windir"));
		if(!systemRootPath.isEmpty())
		{
			QFileInfo explorer(QString("%1/explorer.exe").arg(systemRootPath));
			if(explorer.exists() && explorer.isFile())
			{
				QProcess::execute(explorer.canonicalFilePath(), QStringList() << "/select," << QDir::toNativeSeparators(m_fileListModel->getFile(index).filePath()));
				return;
			}
		}
		qWarning("SystemRoot directory could not be detected!");
		QProcess::execute("explorer.exe", QStringList() << "/select," << QDir::toNativeSeparators(m_fileListModel->getFile(index).filePath()));
	}
}

/*
 * Show context menu for output folder
 */
void MainWindow::outputFolderContextMenu(const QPoint &pos)
{
	
	if(pos.x() <= outputFolderView->width() && pos.y() <= outputFolderView->height() && pos.x() >= 0 && pos.y() >= 0)
	{
		m_outputFolderContextMenu->popup(outputFolderView->mapToGlobal(pos));
	}
}

/*
 * Show selected folder in explorer
 */
void MainWindow::showFolderContextActionTriggered(void)
{
	QDesktopServices::openUrl(QUrl::fromLocalFile(m_fileSystemModel->filePath(outputFolderView->currentIndex())));
}

/*
 * Disable update reminder action
 */
void MainWindow::disableUpdateReminderActionTriggered(bool checked)
{
	if(checked)
	{
		if(QMessageBox::Yes == QMessageBox::question(this, tr("Disable Update Reminder"), tr("Do you really want to disable the update reminder?"), QMessageBox::Yes | QMessageBox::No, QMessageBox::No))
		{
			QMessageBox::information(this, tr("Update Reminder"), QString("%1<br>%2").arg(tr("The update reminder has been disabled."), tr("Please remember to check for updates at regular intervals!")));
			m_settings->autoUpdateEnabled(false);
		}
		else
		{
			m_settings->autoUpdateEnabled(true);
		}
	}
	else
	{
			QMessageBox::information(this, tr("Update Reminder"), tr("The update reminder has been re-enabled."));
			m_settings->autoUpdateEnabled(true);
	}

	actionDisableUpdateReminder->setChecked(!m_settings->autoUpdateEnabled());
}

/*
 * Disable sound effects action
 */
void MainWindow::disableSoundsActionTriggered(bool checked)
{
	if(checked)
	{
		if(QMessageBox::Yes == QMessageBox::question(this, tr("Disable Sound Effects"), tr("Do you really want to disable all sound effects?"), QMessageBox::Yes | QMessageBox::No, QMessageBox::No))
		{
			QMessageBox::information(this, tr("Sound Effects"), tr("All sound effects have been disabled."));
			m_settings->soundsEnabled(false);
		}
		else
		{
			m_settings->soundsEnabled(true);
		}
	}
	else
	{
			QMessageBox::information(this, tr("Sound Effects"), tr("The sound effects have been re-enabled."));
			m_settings->soundsEnabled(true);
	}

	actionDisableSounds->setChecked(!m_settings->soundsEnabled());
}

/*
 * Disable Nero AAC encoder action
 */
void MainWindow::disableNeroAacNotificationsActionTriggered(bool checked)
{
	if(checked)
	{
		if(QMessageBox::Yes == QMessageBox::question(this, tr("Nero AAC Notifications"), tr("Do you really want to disable all Nero AAC Encoder notifications?"), QMessageBox::Yes | QMessageBox::No, QMessageBox::No))
		{
			QMessageBox::information(this, tr("Nero AAC Notifications"), tr("All Nero AAC Encoder notifications have been disabled."));
			m_settings->neroAacNotificationsEnabled(false);
		}
		else
		{
			m_settings->neroAacNotificationsEnabled(true);
		}
	}
	else
	{
			QMessageBox::information(this, tr("Nero AAC Notifications"), tr("The Nero AAC Encoder notifications have been re-enabled."));
			m_settings->neroAacNotificationsEnabled(true);
	}

	actionDisableNeroAacNotifications->setChecked(!m_settings->neroAacNotificationsEnabled());
}

/*
 * Disable WMA Decoder component action
 */
void MainWindow::disableWmaDecoderNotificationsActionTriggered(bool checked)
{
	if(checked)
	{
		if(QMessageBox::Yes == QMessageBox::question(this, tr("WMA Decoder Notifications"), tr("Do you really want to disable all WMA Decoder notifications?"), QMessageBox::Yes | QMessageBox::No, QMessageBox::No))
		{
			QMessageBox::information(this, tr("WMA Decoder Notifications"), tr("All WMA Decoder notifications have been disabled."));
			m_settings->wmaDecoderNotificationsEnabled(false);
		}
		else
		{
			m_settings->wmaDecoderNotificationsEnabled(true);
		}
	}
	else
	{
			QMessageBox::information(this, tr("WMA Decoder Notifications"), tr("The WMA Decoder notifications have been re-enabled."));
			m_settings->wmaDecoderNotificationsEnabled(true);
	}

	actionDisableWmaDecoderNotifications->setChecked(!m_settings->wmaDecoderNotificationsEnabled());
}

/*
 * Download and install WMA Decoder component
 */
void MainWindow::installWMADecoderActionTriggered(bool checked)
{
	static const char *download_url = "http://www.nch.com.au/components/wmawav.exe";
	static const char *download_hash = "52a3b0e6690faf3f830c336d3c0eadfb7a4e9bc6";
	
	if(QMessageBox::question(this, tr("Install WMA Decoder"), tr("Do you want to download and install the WMA File Decoder component now?"), tr("Download && Install"), tr("Cancel")) != 0)
	{
		return;
	}

	QString binaryWGet = lamexp_lookup_tool("wget.exe");
	QString binaryElevator = lamexp_lookup_tool("elevator.exe");
	
	if(binaryWGet.isEmpty() || binaryElevator.isEmpty())
	{
		throw "Required binary is not available!";
	}

	while(true)
	{
		QString setupFile = QString("%1/%2.exe").arg(lamexp_temp_folder(), lamexp_rand_str());

		QProcess process;
		process.setWorkingDirectory(QFileInfo(setupFile).absolutePath());

		QEventLoop loop;
		connect(&process, SIGNAL(error(QProcess::ProcessError)), &loop, SLOT(quit()));
		connect(&process, SIGNAL(finished(int, QProcess::ExitStatus)), &loop, SLOT(quit()));
		
		process.start(binaryWGet, QStringList() << "-O" << QFileInfo(setupFile).fileName() << download_url);
		m_banner->show(tr("Downloading WMA Decoder Setup, please wait..."), &loop);

		if(process.exitCode() != 0 || QFileInfo(setupFile).size() < 10240)
		{
			QFile::remove(setupFile);
			if(QMessageBox::critical(this, tr("Download Failed"), tr("Failed to download the WMA Decoder setup. Check your internet connection!"), tr("Try Again"), tr("Cancel")) == 0)
			{
				continue;
			}
			return;
		}

		QFile setupFileContent(setupFile);
		QCryptographicHash setupFileHash(QCryptographicHash::Sha1);
		
		setupFileContent.open(QIODevice::ReadOnly);
		if(setupFileContent.isOpen() && setupFileContent.isReadable())
		{
			setupFileHash.addData(setupFileContent.readAll());
			setupFileContent.close();
		}

		if(_stricmp(setupFileHash.result().toHex().constData(), download_hash))
		{
			qWarning("Hash miscompare:\n  Expected %s\n  Detected %s\n", download_hash, setupFileHash.result().toHex().constData());
			QFile::remove(setupFile);
			if(QMessageBox::critical(this, tr("Download Failed"), tr("The download seems to be corrupted. Please try again!"), tr("Try Again"), tr("Cancel")) == 0)
			{
				continue;
			}
			return;
		}

		QApplication::setOverrideCursor(Qt::WaitCursor);
		process.start(binaryElevator, QStringList() << QString("/exec=%1").arg(setupFile));
		loop.exec(QEventLoop::ExcludeUserInputEvents);
		QFile::remove(setupFile);
		QApplication::restoreOverrideCursor();

		if(QMessageBox::information(this, tr("WMA Decoder"), tr("The WMA File Decoder has been installed. Please restart LameXP now!"), tr("Quit LameXP"), tr("Postpone")) == 0)
		{
			QApplication::quit();
		}
		break;
	}
}

void MainWindow::showDropBoxWidgetActionTriggered(bool checked)
{
	m_settings->dropBoxWidgetEnabled(true);
	
	if(!m_dropBox->isVisible())
	{
		m_dropBox->show();
	}
	
	FLASH_WINDOW(m_dropBox);
}