public SpaceRecordingViewModel(Space space, Project project)
{
InitCommands();
_setDurationBasedOnWpm = false;
_description = null;
Space = space;
Project = project;
ResetElapsedTime();
SetTimeLeft();
RecordDuration = Space.Duration;
MaxWordsPerMinute = DefaultMaxWordsPerMinute;
MinWordsPerMinute = DefaultMinWordsPerMinute;
_recorder = new DescriptionRecorder();
_recorder.DescriptionRecorded += (sender, args) => Description = args.Value;
_player = new DescriptionPlayer();
_player.DescriptionFinishedPlaying += (sender, args) => CommandManager.InvalidateRequerySuggested();
_recordingTimer = new DispatcherTimer { Interval = TimeSpan.FromMilliseconds(CountdownTimerIntervalMsec) };
_recordingTimer.Tick += RecordingTimerOnTick;
_stopwatch = new Stopwatch();
CountdownViewModel = new CountdownViewModel();
CountdownViewModel.CountdownFinished += (sender, args) => StartRecording();
SetWpmValuesBasedOnSpaceText();
}
/// <summary>
/// Creates a ExportWindowView and attaches an instance of ExportViewModel to it.
/// </summary>
/// <returns>The ViewModel of the Window.</returns>
public static ExportViewModel SpawnExportWindowView(Project project, string videoPath, double durationSeconds, List<Description> descriptionList, LoadingViewModel loadingViewModel)
{
var viewModel = new ExportViewModel(project, videoPath, durationSeconds, descriptionList, loadingViewModel);
var view = new ExportWindow(viewModel);
viewModel.DialogResult = view.ShowDialog();
return viewModel;
}
/// <summary>
/// Creates a SpaceRecordingWindow and attaches an instance of SpaceRecordingViewModel to it.
/// </summary>
/// <param name="selectedSpace">Space to record in.</param>
/// <param name="project">The current LiveDescribe Project.</param>
/// <returns>The ViewModel of the Window.</returns>
public static SpaceRecordingViewModel SpawnSpaceRecordingView(Space selectedSpace, Project project)
{
var viewModel = new SpaceRecordingViewModel(selectedSpace, project);
var view = new SpaceRecordingWindow(viewModel);
viewModel.DialogResult = view.ShowDialog();
return viewModel;
}
public static void WriteSpacesFile(Project project, ObservableCollection<Space> spaces)
{
Log.Info("Saving spaces file to " + project.Files.Spaces);
var json = new JsonSerializer { Formatting = Formatting.Indented };
using (var sw = new StreamWriter(project.Files.Spaces))
{
json.Serialize(sw, spaces.ToList());
}
Log.Info("Spaces file saved successfully");
}
/// <summary>
/// Writes a Project object to a file. The path is determined by the project's ProjectFile.AbsolutePath.
/// </summary>
/// <param name="project"></param>
public static void WriteProjectFile(Project project)
{
Log.Info("Saving project file to " + project.Files.Project);
var serializer = new JsonSerializer { Formatting = Formatting.Indented };
using (var sw = new StreamWriter(project.Files.Project, false))
{
serializer.Serialize(sw, project, typeof(Project));
}
Log.Info("Project file saved successfully");
}
public static List<Space> ReadSpacesFile(Project project)
{
List<Space> spaces;
Log.Info("Reading spaces from " + project.Files.Spaces);
using (var r = new StreamReader(project.Files.Spaces))
{
spaces = JsonConvert.DeserializeObject<List<Space>>(r.ReadToEnd());
}
Log.Info("Spaces successfully read from " + project.Files.Spaces);
return spaces;
}
public ExportViewModel(Project project, string videoPath, double durationSeconds, List<Description> descriptionList, LoadingViewModel loadingViewModel)
{
ChoosePathCommand = new RelayCommand(ChoosePath);
ExportCommand = new RelayCommand(ExportProject, CanExport);
_project = project;
_videoPath = videoPath;
_durationSeconds = durationSeconds;
_descriptionList = descriptionList;
_loadingViewModel = loadingViewModel;
}
public static Header ReadWaveFormHeader(Project project)
{
Log.Info("Reading waveform header from " + project.Files.WaveFormHeader);
Header header;
using (var file = File.Open(project.Files.WaveFormHeader, FileMode.Open, FileAccess.Read))
{
var bin = new BinaryFormatter();
header = (Header)bin.Deserialize(file);
}
Log.Info("Waveform header successfully read from " + project.Files.WaveFormHeader);
return header;
}
public static List<short> ReadWaveFormFile(Project project)
{
List<short> waveFormData;
Log.Info("Reading waveform data from " + project.Files.WaveForm);
using (var file = File.Open(project.Files.WaveForm, FileMode.Open, FileAccess.Read))
{
var bin = new BinaryFormatter();
waveFormData = (List<short>)bin.Deserialize(file);
}
Log.Info("Waveform data successfully read from " + project.Files.WaveForm);
return waveFormData;
}
/// <summary>
/// Attempts to create the project file and folder
/// </summary>
/// <param name="project">The instance of project to initialize.</param>
/// <returns>Whether or not initialization was successful.</returns>
public static void InitializeProjectDirectory(Project project)
{
//Ensure that path is absolute
if (!Path.IsPathRooted(project.Folders.Project))
{
MessageBoxFactory.ShowError("Project location must be a root path.");
Log.Warn("Given project path is not rooted");
throw new ArgumentException("Given project path is not rooted");
}
if (Directory.Exists(project.Folders.Project))
{
var result = MessageBoxFactory.ShowWarningQuestion(
string.Format(UiStrings.MessageBox_Format_OverwriteProjectWarning, project.Folders.Project));
Log.Warn("Project folder already exists");
//Return if user doesn't agree to overwrite files.
if (result != MessageBoxResult.Yes)
throw new OperationCanceledException("User decided not to overwrite already existing project");
Log.Info("User has decided to overwrite an existing project directory");
FileDeleter.DeleteProject(project);
}
//Attempt to create files
try
{
Log.Info("Creating project folder");
Directory.CreateDirectory(project.Folders.Project);
Log.Info("Creating project file");
FileWriter.WriteProjectFile(project);
/* Create empty description and space files here, so if they are missing when
* opening a project, it can be noted as so.
*/
Log.Info("Creating descriptions file");
FileWriter.WriteDescriptionsFile(project, new ObservableCollection<Description>());
Log.Info("Creating spaces file");
FileWriter.WriteSpacesFile(project, new ObservableCollection<Space>());
}
catch (Exception e)
{
MessageBoxFactory.ShowError(UiStrings.MessageBox_ProjectCreationError);
Log.Error("An error occured when attempting to create files", e);
throw;
}
}
public static List<Description> ReadDescriptionsFile(Project project)
{
List<Description> descriptions;
Log.Info("Reading descriptions from " + project.Files.Descriptions);
using (var r = new StreamReader(project.Files.Descriptions))
{
descriptions = JsonConvert.DeserializeObject<List<Description>>(r.ReadToEnd());
}
foreach (var description in descriptions)
{
description.AudioFile.MakeAbsoluteWith(project.Folders.Project);
}
Log.Info("Descriptions successfully read from " + project.Files.Descriptions);
return descriptions;
}
public static void DeleteUnusedDescriptionFiles(Project project)
{
if (project == null)
return;
string[] descriptionPaths = Directory.GetFiles(project.Folders.Descriptions.AbsolutePath, "*.wav");
var descriptions = FileReader.ReadDescriptionsFile(project);
foreach (var path in descriptionPaths)
{
if (!PathExistsInDescriptionList(path, descriptions))
{
File.Delete(path);
}
}
}
public DescriptionExportUtility(BackgroundWorker progressWorker, Project project, string videoFile, double videoDurationSeconds, List<Description> descriptionList)
{
_project = project;
_videoFile = videoFile;
_videoDurationSeconds = videoDurationSeconds;
_descriptionList = descriptionList;
_progressWorker = progressWorker;
//gets the path of the ffmpeg.exe file within the LiveDescribe solution
var appDirectory = Path.GetDirectoryName(Assembly.GetExecutingAssembly().Location);
_ffmpegPath = Path.Combine(appDirectory, "Utilities/ffmpeg.exe");
if (!File.Exists(_ffmpegPath))
{
Log.Error("ffmpeg.exe can not be found at " + _ffmpegPath);
//need to do error handling
}
}
/// <summary>
/// Deletes all the files in a project folder defined by a project object, if they exist in
/// the file system.
/// </summary>
/// <param name="project">The project to delete.</param>
public static void DeleteProject(Project project)
{
//Get a list of all the file properties
PropertyInfo[] fileProperties = typeof(Project.ProjectFiles).GetProperties();
//Iterate through the list of file properties
foreach (var propertyInfo in fileProperties)
{
//Get the actual value of the property from project
var f = propertyInfo.GetValue(project.Files) as ProjectFile;
//If f was a projectFile and the file exists, delete it
if (f != null && File.Exists(f))
{
File.Delete(f);
Log.Info("Deleting project file " + f.RelativePath);
}
}
//Do the same for all the folders
PropertyInfo[] folderProperties = typeof(Project.ProjectFolders).GetProperties();
foreach (var propertyInfo in folderProperties)
{
var f = propertyInfo.GetValue(project.Folders) as ProjectFile;
if (f != null && Directory.Exists(f))
{
//Delete folders only if empty
var files = Directory.GetFiles(f);
if (files.Length == 0)
{
Directory.Delete(f, false);
Log.Info("Deleting project folder " + f.RelativePath);
}
}
//TODO delete .wav description files.
}
}
/// <summary>
/// Writes audio data to the file path specified by project.Files.WaveForm.AbsolutePath.
/// </summary>
/// <param name="project"></param>
/// <param name="waveFormData"></param>
public static void WriteWaveFormFile(Project project, List<short> waveFormData)
{
Log.Info("Saving waveform data file to " + project.Files.WaveForm);
using (var file = File.Open(project.Files.WaveForm, FileMode.Create, FileAccess.Write))
{
var bin = new BinaryFormatter();
bin.Serialize(file, waveFormData);
}
Log.Info("Waveform data file saved successfully");
}
/// <summary>
/// Initializes and sets up the progam for a given project file.
/// </summary>
/// <param name="p">The project to initialize</param>
public void SetProject(Project p)
{
CloseProject.ExecuteIfCan();
_projectManager.LoadProject(p);
Settings.Default.RecentProjects.AddFirst(new NamedFilePath
{
Name = p.ProjectName,
Path = p.Files.Project,
});
Settings.Default.Save();
}
private void CopyVideoAndSetProject(string source, Project project)
{
LoadingViewModel.Visible = true;
//Copy video file in background while updating the LoadingBorder
var copyVideoWorker = new BackgroundWorker
{
WorkerReportsProgress = true,
};
var copier = new ProgressFileCopier();
copyVideoWorker.DoWork += (sender, args) =>
{
copier.ProgressChanged += (o, eventArgs) => copyVideoWorker.ReportProgress(eventArgs.ProgressPercentage);
copier.CopyFile(source, project.Files.Video);
};
copyVideoWorker.ProgressChanged +=
(sender, args) => LoadingViewModel.SetProgress("Copying Video File", args.ProgressPercentage);
copyVideoWorker.RunWorkerCompleted += (sender, args) => SetProject(project);
copyVideoWorker.RunWorkerAsync();
}
private void OnProjectLoaded(Project project)
{
var handler = ProjectLoaded;
if (handler != null) handler(this, new EventArgs<Project>(project));
}
private void LoadSpaces(Project project)
{
var spaces = FileReader.ReadSpacesFile(project);
OnSpacesLoaded(spaces);
Log.InfoFormat("Spaces loaded from {0}", project.ProjectName);
}
public MainWindowViewModel(ILiveDescribePlayer mediaVideo)
{
DispatcherHelper.Initialize();
_undoRedoManager = new UndoRedoManager();
_loadingViewModel = new LoadingViewModel(100, null, 0, false);
_projectManager = new ProjectManager(_loadingViewModel, _undoRedoManager);
_descriptionRecordingControlViewModel = new DescriptionRecordingControlViewModel(mediaVideo,
_projectManager);
_mediaControlViewModel = new MediaControlViewModel(mediaVideo, _projectManager);
_preferences = new PreferencesViewModel();
_descriptionInfoTabViewModel = new DescriptionInfoTabViewModel(_projectManager, _descriptionRecordingControlViewModel);
_markingSpacesControlViewModel = new MarkingSpacesControlViewModel(_descriptionInfoTabViewModel, mediaVideo, _undoRedoManager);
_audioCanvasViewModel = new AudioCanvasViewModel(mediaVideo, _projectManager);
_descriptionCanvasViewModel = new DescriptionCanvasViewModel(mediaVideo, _projectManager);
_mediaVideo = mediaVideo;
DescriptionPlayer = new DescriptionPlayer();
DescriptionPlayer.DescriptionFinishedPlaying += (sender, e) =>
{
try
{
DispatcherHelper.UIDispatcher.Invoke(() =>
_mediaControlViewModel.ResumeFromDescription(e.Value));
}
catch (TaskCanceledException exception)
{
Log.Warn("Task Canceled Exception", exception);
}
};
#region Commands
//Commands
CloseProject = new RelayCommand(
canExecute: () => _projectManager.HasProjectLoaded,
execute: () =>
{
if (_projectManager.IsProjectModified)
{
var result = MessageBoxFactory.ShowWarningQuestion(
string.Format(UiStrings.MessageBox_Format_SaveProjectWarning, _project.ProjectName));
if (result == MessageBoxResult.Yes)
SaveProject.Execute();
else if (result == MessageBoxResult.Cancel)
return;
}
_projectManager.CloseProject();
});
NewProject = new RelayCommand(() =>
{
var viewModel = DialogShower.SpawnNewProjectView();
if (viewModel.DialogResult != true)
return;
if (viewModel.CopyVideo)
CopyVideoAndSetProject(viewModel.VideoPath, viewModel.Project);
else
SetProject(viewModel.Project);
});
OpenProject = new RelayCommand(() =>
{
var projectChooser = new OpenFileDialog
{
Filter = string.Format(UiStrings.OpenFileDialog_Format_OpenProject, Project.Names.ProjectExtension)
};
bool? dialogSuccess = projectChooser.ShowDialog();
if (dialogSuccess != true)
return;
OpenProjectPath.Execute(projectChooser.FileName);
});
OpenProjectPath = new RelayCommand<string>(path =>
{
//Attempt to read project. If object fields are missing, an error window pops up.
try
{
Project p = FileReader.ReadProjectFile(path);
SetProject(p);
}
catch (JsonSerializationException)
{
MessageBoxFactory.ShowError(UiStrings.MessageBox_OpenProjectFileMissingError);
}
catch (DirectoryNotFoundException e)
{
Log.Warn("Directory not found while trying to open project", e);
MessageBoxFactory.ShowError(UiStrings.MessageBox_DirectoryNotFoundError);
}
catch (FileNotFoundException e)
{
Log.Warn("FileNotFound while trying to open project", e);
MessageBoxFactory.ShowError(string.Format(UiStrings.MessageBox_Format_FileNotFoundError,
e.FileName));
}
});
ClearRecentProjects = new RelayCommand(() =>
{
Settings.Default.RecentProjects.Clear();
Settings.Default.Save();
});
ShowImportAudioDescription = new RelayCommand(
canExecute: () => _projectManager.HasProjectLoaded,
execute: () =>
{
var viewModel = DialogShower.SpawnImportAudioDescriptionView(_projectManager, _mediaVideo.DurationMilliseconds);
}
);
SaveProject = new RelayCommand(
canExecute: () => _projectManager.IsProjectModified,
execute: () => _projectManager.SaveProject()
);
ExportWithDescriptions = new RelayCommand(
canExecute: () => _projectManager.HasProjectLoaded,
execute: () =>
{
var viewModel = DialogShower.SpawnExportWindowView(_project, _mediaVideo.Path,
_mediaVideo.DurationSeconds, _projectManager.AllDescriptions.ToList(),
_loadingViewModel);
if (viewModel.DialogResult != true)
return;
});
ClearCache = new RelayCommand(
canExecute: () => _projectManager.HasProjectLoaded,
execute: () =>
{
var p = _project;
CloseProject.Execute();
Directory.Delete(p.Folders.Cache, true);
SetProject(p);
});
ShowPreferences = new RelayCommand(() =>
{
_preferences.RetrieveApplicationSettings();
var preferencesWindow = new PreferencesWindow(_preferences);
preferencesWindow.ShowDialog();
});
FindSpaces = new RelayCommand(
canExecute: () => _projectManager.HasProjectLoaded,
execute: () =>
{
var spaces = AudioAnalyzer.FindSpaces(_mediaControlViewModel.Waveform);
_projectManager.Spaces.AddRange(spaces);
}
);
ExportDescriptionsTextToSrt = new RelayCommand(
canExecute: () => _projectManager.HasProjectLoaded,
execute: () =>
{
var saveFileDialog = new SaveFileDialog
{
FileName = Path.GetFileNameWithoutExtension(_mediaControlViewModel.Path),
Filter = UiStrings.SaveFileDialog_ExportToSrt
};
saveFileDialog.ShowDialog();
FileWriter.WriteDescriptionsTextToSrtFile(saveFileDialog.FileName,
_projectManager.AllDescriptions);
}
);
ExportSpacesTextToSrt = new RelayCommand(
canExecute: () => _projectManager.HasProjectLoaded,
execute: () =>
{
var saveFileDialog = new SaveFileDialog
{
FileName = Path.GetFileNameWithoutExtension(_mediaControlViewModel.Path),
Filter = UiStrings.SaveFileDialog_ExportToSrt
};
saveFileDialog.ShowDialog();
FileWriter.WriteSpacesTextToSrtFile(saveFileDialog.FileName, _projectManager.Spaces);
}
);
ShowDescriptionFolder = new RelayCommand(
canExecute: () => _projectManager.HasProjectLoaded,
execute: () =>
{
var pfi = new ProcessStartInfo("Explorer.exe", _project.Folders.Descriptions.AbsolutePath);
Process.Start(pfi);
}
);
ShowAboutInfo = new RelayCommand(DialogShower.SpawnAboutInfoView);
#endregion
//If apply requested happens in the preferences use the new saved microphone in the settings
_descriptiontimer = new Timer(10);
_descriptiontimer.Elapsed += Play_Tick;
_descriptiontimer.AutoReset = true;
#region MediaControlViewModel Events
_mediaControlViewModel.PlayRequested += (sender, e) =>
{
_mediaVideo.Play();
_descriptiontimer.Start();
//this Handler should be attached to the view to update the graphics
OnPlayRequested(sender, e);
};
_mediaControlViewModel.PauseRequested += (sender, e) =>
{
_mediaVideo.Pause();
_descriptiontimer.Stop();
if (_lastRegularDescriptionPlayed != null && _lastRegularDescriptionPlayed.IsPlaying)
DescriptionPlayer.Stop();
//this Handler should be attached to the view to update the graphics
OnPauseRequested(sender, e);
};
_mediaControlViewModel.OnPausedForExtendedDescription += (sender, e) =>
{
_mediaVideo.Pause();
_descriptiontimer.Stop();
CommandManager.InvalidateRequerySuggested();
};
_mediaControlViewModel.MuteRequested += OnMuteRequested;
_mediaControlViewModel.MediaEndedEvent += (sender, e) =>
{
_descriptiontimer.Stop();
_mediaVideo.Stop();
OnMediaEnded(sender, e);
};
#endregion
#region Property Changed Events
_mediaControlViewModel.PropertyChanged += PropertyChangedHandler;
//Update window title based on project name
PropertyChanged += (sender, args) =>
{
if (args.PropertyName == "IsProjectModified")
SetWindowTitle();
};
#endregion
#region ProjectManager Events
_projectManager.ProjectLoaded += (sender, args) =>
{
_project = args.Value;
_mediaControlViewModel.LoadVideo(_project.Files.Video);
SetWindowTitle();
};
_projectManager.ProjectModifiedStateChanged += (sender, args) => SetWindowTitle();
_projectManager.ProjectClosed += (sender, args) =>
{
TryToCleanUpUnusedDescriptionAudioFiles();
_project = null;
SetWindowTitle();
};
#endregion
SetWindowTitle();
}
public void StartLoadingProject(Project project)
{
InitializeDirectories(project);
LoadDescriptions(project);
LoadSpaces(project);
if (!File.Exists(project.Files.WaveForm))
StripAudioAnContinueLoadingProject(project);
else
{
LoadWaveForm(project);
ContinueLoadingProject(project);
}
}
private void ContinueLoadingProject(Project project)
{
Settings.Default.WorkingDirectory = project.Folders.Project + "\\";
OnProjectLoaded(project);
Log.InfoFormat("Project \"{0}\" loaded successfully", project.ProjectName);
_loadingViewModel.Visible = false;
}
private void InitializeDirectories(Project project)
{
CreateDirectoryIfNotExists(project.Folders.Descriptions);
CreateDirectoryIfNotExists(project.Folders.Cache);
}
private void LoadWaveForm(Project project)
{
var header = FileReader.ReadWaveFormHeader(project);
var audioData = FileReader.ReadWaveFormFile(project);
project.Waveform = new Waveform(header, audioData);
Log.InfoFormat("Waveform loaded from {0}", project.Files.WaveForm);
}
/// <summary>
/// Writes the header for the WAV file that the waveform data was sampled from.
/// </summary>
/// <param name="project"></param>
/// <param name="header"></param>
public static void WriteWaveFormHeader(Project project, Header header)
{
Log.Info("Saving waveform header file to " + project.Files.WaveFormHeader);
using (var file = File.Open(project.Files.WaveFormHeader, FileMode.Create, FileAccess.Write))
{
var bin = new BinaryFormatter();
bin.Serialize(file, header);
}
Log.Info("Waveform header file saved successfully");
}
public void LoadProject(Project project)
{
_projectLoader.StartLoadingProject(project);
}
private void OnSpacesAudioAnalysisCompleted(Project project, List<Space> spaces)
{
EventHandler<TwoTupleEventArgs<Project, List<Space>>> handler = SpacesAudioAnalysisCompleted;
if (handler != null) handler(this, new TwoTupleEventArgs<Project, List<Space>>(project, spaces));
}
private void LoadDescriptions(Project project)
{
var descriptions = FileReader.ReadDescriptionsFile(project);
OnDescriptionsLoaded(descriptions);
Log.InfoFormat("Descriptions loaded from {0}", project.ProjectName);
}
/// <summary>
/// Attempts to create a project using forminfo. If the given folder structure exists, the
/// user will be asked for confirmation to overwrite it. On an error, the project creation
/// will be cancelled and the method will return. On success, the ProjectCreated event is invoked.
/// </summary>
private void CreateProject()
{
Log.Info(CopyVideo
? "Attempting to create a project with a copied video"
: "Attempting to create a project with a video located outside of project");
var project = new Project(ProjectName, ProjectPath, VideoPath, CopyVideo);
try { ProjectLoader.InitializeProjectDirectory(project); }
catch { return; }
Project = project;
Log.Info("Project Created");
OnProjectCreated();
}
private void StripAudioAnContinueLoadingProject(Project project)
{
var worker = new BackgroundWorker { WorkerReportsProgress = true, };
Waveform waveform = null;
//Strip the audio from the given project video
worker.DoWork += (sender, args) =>
{
Log.Info("Beginning to strip audio");
var audioOperator = new AudioUtility(project);
audioOperator.StripAudio(worker);
var waveFormData = audioOperator.ReadWavData(worker);
var audioHeader = audioOperator.Header;
waveform = new Waveform(audioHeader, waveFormData);
Log.Info("Audio stripped");
};
worker.RunWorkerCompleted += (sender, args) =>
{
project.Waveform = waveform;
if (Settings.Default.AutoGenerateSpaces)
{
List<Space> spaceData = AudioAnalyzer.FindSpaces(waveform);
OnSpacesAudioAnalysisCompleted(project, spaceData);
Log.Info("Spaces found");
}
else
Log.Info("Spaces not auto-generated");
FileWriter.WriteWaveFormHeader(project, waveform.Header);
FileWriter.WriteWaveFormFile(project, waveform.Data);
ContinueLoadingProject(project);
};
worker.ProgressChanged += (sender, args) => _loadingViewModel.SetProgress("Importing Video",
args.ProgressPercentage);
_loadingViewModel.SetProgress("Importing Video", 0);
_loadingViewModel.Visible = true;
worker.RunWorkerAsync();
}
