qmbrowser.cpp

可以播放MP3,wma等文件格式的播放器

/* qmbrowser.cpp
 *
 * $Id: qmbrowser.cpp,v 1.12 2002/03/31 23:52:41 kyllingstad Exp $
 *
 * Apollo sound player: http://www.apolloplayer.org
 * Copyright(C) 2000-2002 Apollo Team.  See CREDITS file.
 *
 * 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., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 *
 * The GNU General Public License is also available online at:
 *
 * http://www.gnu.org/copyleft/gpl.html
 */

#include "qmbrowser.h"

#include "qmconfig.h"
#include "qmdirbrowser.h"
#include "qmpixmapsupplier.h"
#include "qmplaylistbrowser.h"

#include <qcombobox.h>
#include <qlayout.h>
#include <qwidgetstack.h>

/**
 * \file qmbrowser.cpp
 * \brief Widget for browsing: playlists and directories 
 */

/*!
  \class QmBrowser qmbrowser.h
  \brief Represents the play list browser widget.

  This class provides a widget with a tree for quickly selecting play lists to
  be played.  It also provides a directory browser.   Makes it fast and easy to
  add to the playlist.  There are two modes:

  <ul>
  <li> Directory: A directory browser that lets you add mp3's/directories to the
       playlist.</li>
  <li> Playlist: A Playlist list browser.  A playlist list is like a playlist
       that has names of playlists instead of mp3's.  (Create one in a shell with
       "ls *.m3u > PlaylistList").  Lets you load/append/prepend playlists.</li>
  </ul>
*/


/*!

*/

QmBrowser::QmBrowser(
	QmMainWindow *mainwindow,
	QWidget *parent,
	const char *name)
	: QWidget(parent, name),
	  m_pMainWindow(mainwindow)
{
	QVBoxLayout *top = new QVBoxLayout(this, 1);

    QmPixmapSupplier *sup = QmPixmapSupplier::instance();	
	m_pMode = new QComboBox(false, this);	
	m_pMode->insertItem(sup->pixmap( "icons-playlist" ), "Playlists", PLAYLIST_MODE);
	m_pMode->insertItem(sup->pixmap( "icons-folder" ), "Directories", DIRECTORY_MODE);

	m_pStack = new QWidgetStack(this);

	m_pDirBrowser 	   = new QmDirBrowser(m_pMainWindow, m_pStack);
	m_pPlayListBrowser = new QmPlayListBrowser(m_pStack);
	
	m_pStack->addWidget(m_pDirBrowser, DIRECTORY_MODE);
	m_pStack->addWidget(m_pPlayListBrowser, PLAYLIST_MODE);
	m_pStack->raiseWidget(PLAYLIST_MODE);

	connect(m_pMode, SIGNAL(activated(int)), this, SLOT(browserActivated(int)));

	top->addWidget(m_pMode);
	top->addWidget(m_pStack, 2);

	int browser_mode;
	QmConfig::instance()->get("main-window", "browser-mode", browser_mode);
	m_pMode->setCurrentItem(browser_mode);
	m_pStack->raiseWidget(browser_mode);
}


QmBrowser::~QmBrowser() {}


/*!
  Similar to QWidget::hasFocus(), except that this function will return true
  if either of the browsers (child widgets) has focus, where as
  QWidget::hasFocus() would only return if \e this widget has focus.
 */

bool
QmBrowser::hasBrowserFocus() const
{
	if(m_pDirBrowser->hasFocus())
		return true;
	else if(m_pPlayListBrowser->hasFocus())
		return true;
	else
		return false;
}


/*!
  Removes the active item, if any, in the browser that has keyboard focus.
*/

void
QmBrowser::removeItem()
{
	QListViewItem *current = 0;
	
	if(m_pDirBrowser->hasFocus())
	{
		current = m_pDirBrowser->currentItem();
	}
	else if(m_pPlayListBrowser->hasFocus())
	{
		current = m_pPlayListBrowser->currentItem();
	}

	if(current)
		delete current;
}

void
QmBrowser::loadPlayListTree(const QString &filename) 
{
    m_pPlayListBrowser->loadPlayListTree(filename);
}


/*!
  Displays the directory browser.
*/

void
QmBrowser::showDirectories()
{
    m_pMode->setCurrentItem( DIRECTORY_MODE );
    browserActivated( DIRECTORY_MODE );
}

/*!
  Displays the playlist browser.
*/

void
QmBrowser::showPlaylists()
{
    m_pMode->setCurrentItem( PLAYLIST_MODE );
    browserActivated( PLAYLIST_MODE );
}

/*!

 */

void
QmBrowser::browserActivated(
	int mode)
{
	QmConfig::instance()->set("main-window", "browser-mode", mode);
	m_pStack->raiseWidget(mode);
}