qmmainwindow.h

可以播放MP3,wma等文件格式的播放器

/* ;-*-c++-*-
 * qmmainwindow.h
 *
 * $Id: qmmainwindow.h,v 1.101 2002/04/01 22:51:01 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
 */

#ifndef QMMAINWINDOW_H_INCLUDED
#define QMMAINWINDOW_H_INCLUDED

#include <qapplication.h>
#include <qmainwindow.h>
//#include <memory>
#include <deque>
#include <qstatusbar.h>

/*! \file qmmainwindow.h
  Definition of QmMainWindow class which is the main Apollo window.
*/

class QLineEdit;
class QListViewItem;
class QSplitter;
class QTextView;
class QVBoxLayout;
class QWidgetStack;

class Message;
class QmBrowser;
class QmControlBar;
class QmFileDialog;
class QmMarkDialog;
class QmMenuButton;
class QmMiniBuffer;
class QmPlayFirst;
class QmPlayList;
class QmPlayListItem;
class QmPlayer;
class QmPositionBar;
class QmRemoteControl;
class QmSongItem;
class QmStatusBar;
class QmVolumeBar;

class QmMainWindow : public QMainWindow
{
    Q_OBJECT
public:
    QmMainWindow(QWidget *parent = 0, const char *name = 0);
    virtual ~QmMainWindow();

	// session
    void restoreState();
    void saveState();
    void loadStartupPlayList();
    void saveStartupPlayList();
    static QmMainWindow *mainwin;

	// status
	bool randomMode() const { return m_Randomp; }
	bool loopMode() const { return m_Loopp; }
	bool loopOneMode() const { return m_LoopOnep; } 
	int volume() const;
	int volumeBalanse() const;
	int currentSongPlayedTime();
	
	// add to playlist
	bool playListAdd(const QString &filename, bool playFirst=false);
    void playListAppendDir(const QString &filename);
    void playListPrependDir(const QString &filename);
	void playListAppendFile(const QString &filename);
    void savePlayList(const QString &filename);
    bool playListIsEmpty() const;
    void playListAppendList(const QString &filename);
    void playListPrependList(const QString &filename);

	void addFilesDialog();
	void configDialog();
	void toggleCompactWindow();
	void showAbout();
	
	// misc playlist
	QmSongItem* playingSong();
	QmSongItem* song(int no);
    bool playListAtEnd() const;
    bool playListAtBeginning() const;
    void updatePlayList() const;
    void statusUpdate(Message *msg);
	int playListPosition();
	void playListPosition(int songNo);
	void playListDeletePosition(int songNo);
	int playListEntries();
	const QString& playListFile();

    /*! The state of the player, used to determine which play controls are enabled/disabled. */
    enum PlayState
    {
        Stopped, /*! The default state, no song is playing or one has just been stopped. */
        Playing, /*! A song is playing. */
        Paused,  /*! A song is playing but is paused. */
    };

    PlayState playingState() const;
    void setPlayingState( QmMainWindow::PlayState state );
	bool isPlaying() const { return m_PlayState == Playing; }
      
    /*! Main window state - set to busy during longish tasks, used to disable the
     *  gui while loading the playlist etc.
     */
    enum MainState { Ready, Busy };

    MainState state() const;
    void setState( QmMainWindow::MainState state );


    /*! Where the browser is compared to the playlist */
    enum BrowserPosition
    {
        LeftBrowser,
        RightBrowser,
        TopBrowser,
        BottomBrowser
    };

	void hideBrowser();
	void showBrowser();
	BrowserPosition browserPosition() const;
	void setBrowserPosition(QmMainWindow::BrowserPosition pos);
	void setVolume(int vol);
	void jumpToSeconds(int seconds);

	QmPlayList *playList();
    QmBrowser *browser() const;
    QmControlBar *controlBar() const;

public slots:
    void prev();
    void next();
    void play();
    void stop();
	void pause();
    void toggleRandomMode();
	void cycleLoopMode();
    void togglePlayList();
	void toggleBrowser();
	void showDirectoryBrowser();
	void showPlaylistBrowser();
    void flattenPlayList();
	void clearPlayList();
	void setMark();
	void showMarkDialog();
	void startPlayer();
    void continueHere(QmPlayListItem * here);
    void activateSearch();

	void setBrowserLeft();
	void setBrowserRight();
	void setBrowserTop();
	void setBrowserBottom();

    void setDisplayFormat();
    
//    void loadPlayList(const QString &filename = QString::null, QmPlayListItem *above = 0);
    void loadPlayListTree(const QString &filename);
    void savePlayListTree(const QString &filename = QString::null);

    void addToPlayFirst();
    void addToPlayFirst(QmPlayListItem *addme);
	void showOrHidePlayFirst();

    bool moreSongsp() const;
	bool prevSongAvailablep() const;	

    void updateSongLength(int length);
    void updateBitrate(int bitrate);

	void showPlayerMessages();
private:

protected:
    QString volumeText() const;
    QString positionText() const;
    void playAndUpdateControls(QmSongItem *playme);
	QmPlayList* activePlayList();
	bool tryContinueHere();

private slots:
    void selected(QListViewItem *item);
    void selected(QListViewItem *item, QmPlayList *playlist);
    void current(QListViewItem *item);
	
	void playingStopped();
	void playerMessage(const QString &info);
	void removeItem();

	void updateItems();
	
private:
	QmStatusBar			*m_pStatusBar;
	QmVolumeBar			*m_pVolumeBar;
	QmPositionBar		*m_pPositionBar;
	QmControlBar		*m_pControlBar;
	QmMiniBuffer        *m_pMiniBuffer;
    QmPlayList			*m_pPlayList;
    QmPlayFirst			*m_pPlayFirst;
	QmBrowser			*m_pBrowser;
	QWidget				*m_pPlayListHolder;
	QWidget				*m_pPlayFirstHolder;
    QVBoxLayout			*top;
	QmPlayer			*m_pPlayer;
    bool                 m_ContinueHerep;
    QmPlayListItem      *m_pContinueHere;
    QString              m_ContinuePlayList;
    QString              m_ContinueSong;
	QTextView			*m_pPlayerMessage;

    MainState   		 m_State;
    PlayState   		 m_PlayState;
	bool				 m_StopClicked;
    bool                 m_Randomp;
    bool                 m_Loopp;
    bool                 m_LoopOnep; 
	
    QString     		 m_PlayListName;

	QmMarkDialog	   	*m_pMarkDialog;
    QSplitter          	*m_pListBrowserSplitter;
    QSplitter          	*m_pListsSplitter;

	BrowserPosition		 m_Position;
    static const bool    debug = true;
    static QmMainWindow *m_pInstance;
	static const unsigned int MESSAGE_LOG_SIZE = 512;
	std::deque<Message *> m_Messages;

	QmRemoteControl     *m_pRemoteControl;
};

#endif // QMMAINWINDOW_H_INCLUDED