Esempio n. 1
0
        /// <summary>
        /// This method populates the <see cref="DESAudioPlayer"/> with the
        /// audio files that are called in the current trial at the
        /// correct starting times, so that they could be played and seeked along with the
        /// replay visualization.
        /// </summary>
        /// <param name="trialEvents">The complete <see cref="SortedList{Int32, TrialEvent}"/>
        /// of trial events to be parsed for audio stimuli.</param>
        /// <returns><strong>True</strong> if successful, otherwise <strong>false</strong>.</returns>
        protected bool LoadAudioStimuli(SortedList <int, TrialEvent> trialEvents)
        {
            try
            {
                if (this.currentTrial == null)
                {
                    return(false);
                }

                // Initialize player
                if (this.audioPlayer != null)
                {
                    this.audioPlayer.Close();
                    this.audioPlayer = null;
                }

                List <long> slideStartTimes = new List <long>();
                slideStartTimes.Add(0);
                List <TrialEvent> audioEvents = new List <TrialEvent>();

                foreach (TrialEvent trialEvent in trialEvents.Values)
                {
                    if (trialEvent.Type == EventType.Slide)
                    {
                        slideStartTimes.Add(trialEvent.Time);
                    }

                    if (trialEvent.Type == EventType.Audio)
                    {
                        audioEvents.Add(trialEvent);
                    }
                }

                for (int i = 0; i < this.currentTrial.Count; i++)
                {
                    Slide slide = this.currentTrial[i];

                    // Background sound
                    if (slide.BackgroundSound != null && slide.BackgroundSound.ShouldPlay)
                    {
                        // Create only if needed
                        if (this.audioPlayer == null)
                        {
                            this.audioPlayer = new DESAudioPlayer();
                        }

                        this.audioPlayer.AddSoundAtPosition(slide.BackgroundSound.FullFilename, slideStartTimes[i]);
                    }

                    // Parse elements for audio
                    foreach (VGElement element in slide.VGStimuli)
                    {
                        if (element.Sound != null && element.Sound.ShouldPlay && !element.Sound.ShowOnClick)
                        {
                            // Create only if needed
                            if (this.audioPlayer == null)
                            {
                                this.audioPlayer = new DESAudioPlayer();
                            }

                            this.audioPlayer.AddSoundAtPosition(element.Sound.FullFilename, slideStartTimes[i]);
                        }
                    }
                }

                // Parse elements for audio
                foreach (TrialEvent audioEvent in audioEvents)
                {
                    string filename = Path.Combine(
                        Document.ActiveDocument.ExperimentSettings.SlideResourcesPath,
                        Path.GetFileName(Path.GetFileName(audioEvent.Param)));

                    // Create only if needed
                    if (this.audioPlayer == null)
                    {
                        this.audioPlayer = new DESAudioPlayer();
                    }

                    this.audioPlayer.AddSoundAtPosition(filename, audioEvent.Time);
                }

                // Initialize audioplayer for replay on time.
                if (this.audioPlayer != null)
                {
                    this.audioPlayer.Initialize();
                }
            }
            catch (Exception ex)
            {
                ExceptionMethods.HandleException(ex);

                return(false);
            }

            return(true);
        }
Esempio n. 2
0
        ///////////////////////////////////////////////////////////////////////////////
        // Construction and Initializing methods                                     //
        ///////////////////////////////////////////////////////////////////////////////
        #region CONSTRUCTION

        /// <summary>
        /// Initializes a new instance of the FormWithPicture class.
        /// </summary>
        public FormWithPicture()
        {
            this.audioPlayer = new DESAudioPlayer();
        }