qmcontrolbar.cpp

可以播放MP3,wma等文件格式的播放器

	m_pBrowserMenu->setItemEnabled(m_BrowserTopId, menu_flag);
	m_pBrowserMenu->setItemEnabled(m_BrowserBottomId, menu_flag);
	m_pBrowserMenu->setItemEnabled(m_BrowserFullId, menu_flag);

	int full_browser;
	QmConfig::instance()->get("main-window", "full-browser", full_browser);

	if(full_browser == 0)
		m_pBrowserMenu->setItemChecked(m_BrowserFullId, false);
	else
		m_pBrowserMenu->setItemChecked(m_BrowserFullId, true);	
}


/*!

 */

QmControlBar::~QmControlBar()
{
}


QAction *
QmControlBar::systrayAction( ActionItem i ) const
{
    QAction * a = 0;
    if ( m_pSystrayActionMap.find( i ) != m_pSystrayActionMap.end() )
        a = m_pSystrayActionMap[i];
    return a;
}

/*!
  Saves whether the browser is visible or not and whether it is in full mode
  or not.

  It appears that this checking must be done through the menu state and
  not by actually checking whether the widgets themselves are visible or
  not.  The latter approach would be appropriate to do in QmMainWindow's
  destructor or closeEvent(), but it appears that by then, the widgets
  are never visible.  
 */

void
QmControlBar::save()
{
	if(m_pBrowserMenu->isItemChecked(m_BrowserId))
		QmConfig::instance()->set("main-window", "show-browser", 1);
	else
		QmConfig::instance()->set("main-window", "show-browser", 0);

	if(m_pBrowserMenu->isItemChecked(m_BrowserFullId))	
		QmConfig::instance()->set("main-window", "full-browser", 1);
	else
		QmConfig::instance()->set("main-window", "full-browser", 0);
	
}


/*!
  \return A pointer to the (file) dialog.
 */

QmFileDialog*
QmControlBar::makeDialog()
{
	QmFileDialog *dlg = 0;
	
    if ( m_MainFileDialogAvailable )
    {
        dlg = m_pMainFileDialog;
        m_MainFileDialogAvailable = false;
    }
    else
        dlg = new QmFileDialog( 0, "file-dialog", false );

	return dlg;
}


/*!

 */

void
QmControlBar::destroyDialog(
	QFileDialog *dlg)
{	
    if ( dlg != m_pMainFileDialog )
        trash( dlg );
    else
        m_MainFileDialogAvailable = true;
}


/*!

 */

void
QmControlBar::showDialog(
	QFileDialog *dlg)
{
    QRect file_rect = QmConfig::instance()->getRect( "file-dialog", "geometry" );
	
    if ( file_rect.isValid() )
    {
        dlg->resize( file_rect.size() );
        dlg->move( file_rect.topLeft() );
    }
	
    dlg->show();
}


/*!
  Adds one or more songs to the list.

  \sa addDir(), addPlayList()
 */

void
QmControlBar::addFiles()
{
    if ( m_pMainWindow->state() == QmMainWindow::Busy ) // Do not show dialogs when busy
        return;

    QmFileDialog *dlg = makeDialog();
    connect( dlg, SIGNAL( dialogDone( QFileDialog *, int ) ),
             this, SLOT( doAddFiles( QFileDialog *, int ) ) );
	
    QmConfig *conf = QmConfig::instance();
    dlg->setCaption( tr("Apollo - Add MP3 files"));
    dlg->setDir( QDir( conf->getString( "path", "music" ) ) );
	QStringList tmp;
	tmp.append( "MP3 files (*.mp3)" );
	tmp.append( "All Files (*)" );
    dlg->setFilters( tmp );
    dlg->setMode( QFileDialog::ExistingFiles );
 
	showDialog(dlg);
}


/*!
  Adds a directory to the play list.

  \sa addFiles(), addPlayList()
 */

void
QmControlBar::addDir()
{
    if ( m_pMainWindow->state() == QmMainWindow::Busy ) // Do not show dialogs when busy
        return;

    QmFileDialog *dlg = makeDialog();
    connect( dlg, SIGNAL( dialogDone( QFileDialog *, int ) ),
             this, SLOT( doAddDir( QFileDialog *, int ) ) );
	
    QmConfig *conf = QmConfig::instance();
    dlg->setCaption(tr("Apollo - Add directory"));
    dlg->setDir( QDir( conf->getString( "path", "music" ) ) );
    dlg->setMode( QFileDialog::Directory );
	
	showDialog(dlg);
}


/*!
  Adds a playlist to the playlist.

  \sa addFiles(), addDir()
*/

void
QmControlBar::addPlayList()
{
    if ( m_pMainWindow->state() == QmMainWindow::Busy ) // Do not show dialogs when busy
        return;

    QmFileDialog *dlg = makeDialog();
    connect( dlg, SIGNAL( dialogDone( QFileDialog *, int ) ),
             this, SLOT( doAddPlayList( QFileDialog *, int ) ) );
	
    QmConfig *conf = QmConfig::instance();
    dlg->setCaption(tr("Apollo - Add playlist"));
    dlg->setDir( QDir( conf->getString( "path", "playlist" ) ) );
	QStringList tmp;
	tmp.append( "Playlists (*.m3u *.xml)" );
	tmp.append( "All Files (*)" );
    dlg->setFilters( tmp );
    dlg->setMode( QFileDialog::ExistingFile );
	
	showDialog(dlg);
}


/*!
  Adds the files selected in the \c dlg object if \c val is Accepted.
*/

void
QmControlBar::doAddFiles(
	QFileDialog *dlg,
	int val )
{
    if ( val == QDialog::Accepted )
    {
		QmConfig *conf = QmConfig::instance();
		conf->set( "path", "music", dlg->dir()->absPath() );
		conf->set( "file-dialog", "geometry", QRect( dlg->pos(), dlg->size() ) );
		
        QStringList strlist = dlg->selectedFiles();

		if( ! strlist.isEmpty())
		{
			m_pMainWindow->setState( QmMainWindow::Busy );
		
			for(QStringList::ConstIterator it = strlist.begin(); it != strlist.end(); ++it)
			{
				m_pMainWindow->playListAppendFile(*it);
			}
		
			int w = m_pMainWindow->playList()->header()->width();
			w = w > 400 ? w : 400;
			setMaximumSize(w, maximumSize().height());

			m_pMainWindow->setState( QmMainWindow::Ready );		
			updateControls();
		}
    }
	
    disconnect( dlg, SIGNAL( dialogDone( QFileDialog *, int ) ),
                this, SLOT( doAddFiles( QFileDialog *, int ) ) );

	destroyDialog(dlg);
}


/*!
  Adds the directory selected in the \c dlg object if \c val is accepted.
*/

void
QmControlBar::doAddDir(
	QFileDialog *dlg,
	int val )
{
    if ( val == QDialog::Accepted )
    {
		// We do not want the selected directory to be the directory shown
		// next time we open the dialog, so here we use dir()
		
		QmConfig *conf = QmConfig::instance();
		conf->set( "path", "music", dlg->dir()->absPath() );
		conf->set( "file-dialog", "geometry", QRect( dlg->pos(), dlg->size() ) );
		
        QString dirname = dlg->selectedFile(); // everything is a file :)

        // If no directory is selected, use the parent directory
		
        if ( dirname.isNull() )
            dirname = dlg->dir()->absPath();

        if( ! dirname.isEmpty())
        {
            m_pMainWindow->setState( QmMainWindow::Busy );
			m_pMainWindow->playListAppendDir(dirname);
            m_pMainWindow->setState( QmMainWindow::Ready );
            updateControls();
        }
    }
	
    disconnect( dlg, SIGNAL( dialogDone( QFileDialog *, int ) ),
                this, SLOT( doAddDir( QFileDialog *, int ) ) );

	destroyDialog(dlg);
}


/*!
  Adds the playlist selected in the \c dlg object if \c val is accepted.
*/

void
QmControlBar::doAddPlayList(
	QFileDialog *dlg,
	int val )
{
    if ( val == QDialog::Accepted )
    {
		QmConfig *conf = QmConfig::instance();
		conf->set( "path", "playlist", dlg->dir()->absPath() );		
		conf->set( "file-dialog", "geometry", QRect( dlg->pos(), dlg->size() ) );

        QString s = dlg->selectedFile();

        if( ! s.isEmpty() )
		{
			m_pMainWindow->setState( QmMainWindow::Busy );
            m_pMainWindow->playListAppendList(s);
			m_pMainWindow->setState( QmMainWindow::Ready );
			updateControls();
		}
    }

    disconnect( dlg, SIGNAL( dialogDone( QFileDialog *, int ) ),
                this, SLOT( doAddPlayList( QFileDialog *, int ) ) );

	destroyDialog(dlg);
}


/*!
  Opens up a file requester asking to save the play list.
 */

void
QmControlBar::savePlayList()
{
    if ( m_pMainWindow->state() == QmMainWindow::Busy ) // Do not show dialogs when busy
        return;

    QmFileDialog *dlg = new QmFileDialog( 0, "file-dialog", false );
    connect( dlg, SIGNAL( dialogDone( QFileDialog *, int ) ),
             this, SLOT( doSavePlayList( QFileDialog *, int ) ) );
	
    QmConfig *conf = QmConfig::instance();
    dlg->setDir( QDir( conf->getString( "path", "playlist" ) ) );
    dlg->setMode( QFileDialog::AnyFile );
	QStringList tmp;
	tmp.append( "Playlists (*.m3u *.xml)" );
	tmp.append( "All Files (*)" );
    dlg->setFilters( tmp );
    dlg->setCaption( "Apollo - Save playlist" );
	
    QRect file_rect = conf->getRect( "file-dialog", "geometry" );
	
    if ( file_rect.isValid() )
    {
        dlg->resize( file_rect.size() );
        dlg->move( file_rect.topLeft() );
    }
	
    dlg->show();
}


/*!
  Helper function which saves the selected file in the dialog \c dlg.
  
  \sa savePlayList()
*/

void
QmControlBar::doSavePlayList(
	QFileDialog *dlg,
	int val )
{
    if ( val == QDialog::Accepted )
    {
		QmConfig *conf = QmConfig::instance();
		conf->set( "path", "playlist", dlg->dir()->absPath() );
		conf->set( "file-dialog", "geometry", QRect( dlg->pos(), dlg->size() ) );

        QString s = dlg->selectedFile();
		if ( ! s.isEmpty() )
        {
			if ( s.findRev(".m3u", -1, false)  != static_cast<int>(s.length()) - 4 &&
				 s.findRev(".xml", -1, false)  != static_cast<int>(s.length()) - 4 )
            {
                s += ".xml";