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BSEtunes

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24 Apr 2010CPOL4 min read 64.2K   4.3K   58  
BSEtunes is a MySQL based, full manageable, networkable single or multiuser jukebox application
using System;
using System.Collections.Generic;
using System.Text;
using System.Windows.Forms;
using System.ComponentModel;

using BSE.Platten.BO;
using BSE.Platten.Common;
using System.Globalization;
using System.Drawing;

namespace BSE.Platten.Audio
{
	public partial class AudioPlayerToolStrip : ToolStrip
    {
        #region Delegates

        private delegate void m_delegateViewStatePlayerPlays(PlayMode eMode);
        private delegate void m_delegateViewStatePlayerPaused(PlayMode eMode);
        private delegate void m_delegateViewStatePlayerStopped(PlayMode eMode);
        private delegate void m_delegateViewStatePlayerClosed(PlayMode eMode);

        #endregion

        #region FieldsPrivate

        private BSE.Platten.Audio.CPlayerManager m_playerManager;
        private System.Timers.Timer m_tmrPosition;
        private PlayMode m_playMode;

		#endregion

		#region Properties

        public CPlayerManager PlayerManager
        {
            get { return this.m_playerManager; }
            set
            {
                this.m_playerManager = value;
                if (this.m_playerManager != null)
                {
                    this.m_playerManager.PlayerManagerTrackChanged += new EventHandler<PlayerManagerStatusChangedEventArgs>(PlayerManagerTrackChanged);
                    this.m_playerManager.PlayerManagerSongFinished += new EventHandler<PlayerManagerStatusChangedEventArgs>(PlayerManagerSongFinished);
                    this.m_playerManager.PlayerManagerPlays += new EventHandler<PlayerManagerStatusChangedEventArgs>(PlayerManagerPlays);
                    this.m_playerManager.PlayerManagerPaused += new EventHandler<PlayerManagerStatusChangedEventArgs>(PlayerManagerPaused);
                    this.m_playerManager.PlayerManagerStopped += new EventHandler<PlayerManagerStatusChangedEventArgs>(PlayerManagerStopped);
                    this.m_playerManager.PlayerManagerClosed += new EventHandler<PlayerManagerStatusChangedEventArgs>(PlayerManagerClosed);
                }
            }
        }

        internal PlayMode PlayMode
        {
            get { return this.m_playMode; }
            set { this.m_playMode = value; }
        }

		#endregion

		#region MethodsPublic

		public AudioPlayerToolStrip()
		{
			InitializeComponent();

            this.m_trackBar.BackColor = Color.Transparent;
            this.DoubleBuffered = true;
            this.m_tmrPosition = new System.Timers.Timer();
            this.m_tmrPosition.AutoReset = true;
            this.m_tmrPosition.Enabled = false;
            this.m_tmrPosition.Interval = 1000;
            this.m_tmrPosition.Elapsed += new System.Timers.ElapsedEventHandler(TimerPositionElapsed);
		}

		#endregion

		#region MethodsProtected

		#endregion

		#region MethodsPrivate

        private void PlayerManagerPlays(object sender, PlayerManagerStatusChangedEventArgs e)
        {
            try
            {
                this.PlayMode = e.PlayMode;
                this.Invoke(
                    new m_delegateViewStatePlayerPlays(ViewStatePlayerPlays),
                    new object[] { e.PlayMode });
            }
            catch (Exception exception)
            {
                GlobalizedMessageBox.Show(this,exception.Message, MessageBoxButtons.OK, MessageBoxIcon.Error);
            }
        }

        private void ViewStatePlayerPlays(PlayMode eMode)
        {
            int iTrackLength = this.m_playerManager.GetTrackLength();
            this.m_trackBar.Enabled = true;
            this.m_trackBar.Minimum = 0;
            this.m_trackBar.Maximum = iTrackLength;
            this.m_tmrPosition.Enabled = true;
            this.m_btnPlay.Enabled = false;
            this.m_btnPause.Enabled = true;
            this.m_btnStop.Enabled = true;
            this.m_btnMoveNext.Enabled = false;
            this.m_btnMovePrevious.Enabled = false;
            this.m_btnPlaylistView.Enabled = false;

            int iCount = this.m_playerManager.Count - 1;
            int iPlayListPosition = this.m_playerManager.GetPlaylistPosition();

            string strDuration = String.Format(CultureInfo.InvariantCulture,"({0}) ", CPlayerManager.GetTrackDurationAsString(iTrackLength));
            string strTitle = this.m_playerManager.GetSongTitle();
            this.m_trackBar.Start(strDuration + strTitle);
            
            switch (eMode)
            {
                case PlayMode.Random:
                case PlayMode.Playlist:
                    if (this.m_playerManager.IsNextTrackAvailable == true)
                    {
                        this.m_btnMoveNext.Enabled = true;
                    }
                    if (this.m_playerManager.IsPreviousTrackAvailable == true)
                    {
                        this.m_btnMovePrevious.Enabled = true;
                    }
                    break;
                case PlayMode.CD:
                    if (this.m_playerManager.TrackCollection != null)
                    {
                        if (this.m_playerManager.TrackCollection.Equals(
                            this.m_btnPlaylistView.TrackCollection) == false)
                        {
                            this.m_btnPlaylistView.TrackCollection = this.m_playerManager.TrackCollection;
                        }
                        this.m_btnPlaylistView.SelectTrack(iPlayListPosition);
                        this.m_btnPlaylistView.Enabled = true;
                    }
                    if (iPlayListPosition >= 0 && iPlayListPosition < iCount)
                    {
                        this.m_btnMoveNext.Enabled = true;
                    }
                    if (iPlayListPosition > 0)
                    {
                        this.m_btnMovePrevious.Enabled = true;
                    }
                    break;
            }
        }

        private void PlayerManagerPaused(object sender, PlayerManagerStatusChangedEventArgs e)
        {
            this.PlayMode = e.PlayMode;
            this.Invoke(
                new m_delegateViewStatePlayerPaused(ViewStatePlayerPaused),
                new object[] { e.PlayMode });
        }

        private void ViewStatePlayerPaused(PlayMode eMode)
        {
            this.m_btnPlay.Enabled = true;
            this.m_btnPause.Enabled = false;
            this.m_btnStop.Enabled = true;
            this.m_tmrPosition.Enabled = false;
        }

        private void PlayerManagerStopped(object sender, PlayerManagerStatusChangedEventArgs e)
        {
            this.PlayMode = e.PlayMode;
            this.Invoke(
                new m_delegateViewStatePlayerStopped(ViewStatePlayerStopped),
                new object[] { e.PlayMode });
        }

        private void ViewStatePlayerStopped(PlayMode eMode)
        {
            this.m_trackBar.Enabled = false;
            this.m_btnMovePrevious.Enabled = false;
            this.m_btnPlay.Enabled = false;
            this.m_btnPause.Enabled = false;
            this.m_btnStop.Enabled = false;
            this.m_btnMoveNext.Enabled = false;
            this.m_btnPlaylistView.Enabled = false;
            this.m_tmrPosition.Enabled = false;
        }

        private void PlayerManagerClosed(object sender, PlayerManagerStatusChangedEventArgs e)
        {
            this.PlayMode = e.PlayMode;
            this.Invoke(
                new m_delegateViewStatePlayerClosed(ViewStatePlayerClosed),
                new object[] { e.PlayMode });
        }

        private void ViewStatePlayerClosed(PlayMode eMode)
        {
            this.m_btnMovePrevious.Enabled = false;
            this.m_btnPlay.Enabled = false;
            this.m_btnPause.Enabled = false;
            this.m_btnStop.Enabled = false;
            this.m_btnMoveNext.Enabled = false;
            this.m_btnPlaylistView.Enabled = false;
            this.m_tmrPosition.Enabled = false;
        }

        private void MovePreviousClick(object sender, EventArgs e)
        {
            switch (this.PlayMode)
            {
                case PlayMode.CD:
                    int iPlayListPosition = this.m_playerManager.GetPlaylistPosition();
                    this.m_playerManager.SetPlaylistPosition(iPlayListPosition - 1);
                    break;
                case PlayMode.Playlist:
                case PlayMode.Random:
                    if (this.m_playerManager.IsPreviousTrackAvailable == true)
                    {
                        this.m_playerManager.PlayPreviousTrack(this.PlayMode);
                    }
                    break;
            }
        }

        private void PlayClick(object sender, EventArgs e)
        {
            this.m_playerManager.Play();
        }

        private void PauseClick(object sender, EventArgs e)
        {
            this.m_playerManager.Pause();
        }

        private void StopClick(object sender, EventArgs e)
        {
            this.m_playerManager.Stop();
        }

        private void MoveNextClick(object sender, EventArgs e)
        {
            switch (this.PlayMode)
            {
                case PlayMode.CD:
                    int iPlayListPosition = this.m_playerManager.GetPlaylistPosition();
                    this.m_playerManager.SetPlaylistPosition(iPlayListPosition + 1);
                    break;
                case PlayMode.Playlist:
                case PlayMode.Random:
                    this.m_playerManager.PlayNextTrack(this.PlayMode);
                    break;
            }
        }

        private void PlaylistSelectionChanged(object sender, PlaylistSelectionChangeEventArgs e)
        {
            if (this.PlayMode == PlayMode.CD)
            {
                this.m_playerManager.SetPlaylistPosition(e.PlaylistPosition);
            }
        }

        private void PlayerManagerTrackChanged(object sender, PlayerManagerStatusChangedEventArgs e)
        {
            if (e.PlayMode != PlayMode.Song)
            {
                this.m_tmrPosition.Enabled = true;
            }
        }

        private void PlayerManagerSongFinished(object sender, PlayerManagerStatusChangedEventArgs e)
        {
            if (e.PlayMode != PlayMode.Song)
            {
                this.m_tmrPosition.Enabled = false;
            }
        }

        private void TrackBarScroll(object sender, EventArgs e)
        {
            if (this.m_tmrPosition.Enabled == true)
            {
                this.m_tmrPosition.Enabled = false;
            }
        }
        
        private void TrackBarThumbStateChanged(object sender, ThumbStateChangedEventArgs e)
        {
            if ((e.OldThumbState == ThumbState.Pressed) && (e.NewThumbState == ThumbState.None))
            {
                int iCurrentPosition = this.m_trackBar.Value;
                if ((iCurrentPosition >= this.m_trackBar.Minimum) &&
                    (iCurrentPosition <= this.m_trackBar.Maximum))
                {
                    this.m_playerManager.SetTrackPosition(iCurrentPosition);
                    this.m_tmrPosition.Enabled = true;
                }
            }
        }

        private void TimerPositionElapsed(object sender, System.Timers.ElapsedEventArgs e)
        {
            try
            {
                if ((this.m_trackBar != null) && (this.m_trackBar.IsDisposed == false))
                {
                    this.m_trackBar.Value = this.m_playerManager.GetTrackPosition();
                }
            }
            catch (Exception exception)
            {
                if (this.m_tmrPosition != null)
                {
                    this.m_tmrPosition.Enabled = false;
                }
                GlobalizedMessageBox.Show(this,exception.Message, MessageBoxButtons.OK, MessageBoxIcon.Error);
            }
        }

		#endregion
	}
}

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