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();
}
public AudioCanvasViewModel(ILiveDescribePlayer mediaPlayer, ProjectManager projectManager,
UndoRedoManager undoRedoManager)
{
_projectManager = projectManager;
_undoRedoManager = undoRedoManager;
_player = mediaPlayer;
//TODO: Just refer to MediaPlayer?
mediaPlayer.PropertyChanged += (sender, args) =>
{
if (args.PropertyName.Equals("CurrentState"))
CurrentVideoState = mediaPlayer.CurrentState;
};
_projectManager.ProjectLoaded += (sender, args) => Waveform = args.Value.Waveform;
GetNewSpaceTime = new RelayCommand(
canExecute: () => CurrentVideoState != LiveDescribeVideoStates.VideoNotLoaded,
execute: () =>
{
var s = new Space();
OnRequestSpaceTime(s);
projectManager.AddSpaceAndTrackForUndo(s);
});
}
/// <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 AudioCanvasViewModel(ILiveDescribePlayer mediaPlayer, ProjectManager projectManager)
{
_projectManager = projectManager;
AudioCanvasMouseDownCommand = new RelayCommand<MouseEventArgs>(AudioCanvasMouseDown, param => true);
AudioCanvasMouseRightButtonDownCommand = new RelayCommand<MouseEventArgs>(AudioCanvasMouseRightButtonDown, param => true);
mediaPlayer.PropertyChanged += (sender, args) =>
{
if (args.PropertyName.Equals("CurrentState"))
CurrentVideoState = mediaPlayer.CurrentState;
};
GetNewSpaceTime = new RelayCommand(
canExecute: () => CurrentVideoState != LiveDescribeVideoStates.VideoNotLoaded,
execute: () =>
{
var s = new Space();
OnRequestSpaceTime(s);
projectManager.AddSpaceAndTrackForUndo(s);
});
}
private void OnRequestSpaceTime(Space s)
{
var handler = RequestSpaceTime;
if (handler != null) handler(this, s);
}
private void RemoveSpaceEventHandlers(Space space)
{
space.DeleteRequested -= SpaceDeleted;
}
private void AddSpaceEventHandlers(Space s)
{
s.DeleteRequested += SpaceDeleted;
}
public void AddSpaceAndTrackForUndo(Space space)
{
Spaces.Add(space);
_undoRedoManager.InsertSpaceForInsertUndoRedo(Spaces, space);
}
private void Unselect(ref Space space)
{
space.IsSelected = false;
space = null;
}
private void Select(ref Space space)
{
space.IsSelected = true;
TabSelectedIndex = SpaceTab;
_selectedSpace = space;
SelectedItem = space;
}
private void SelectSpace(Space space, Point clickPoint)
{
space.IsSelected = true;
space.MouseDownCommand.Execute();
if (IsBetweenBounds(space.X - SelectionPixelWidth, clickPoint.X, space.X + SelectionPixelWidth))
{
MouseSelection = new CanvasMouseSelection(IntervalMouseAction.ChangeStartTime, space,
XPosToMilliseconds(clickPoint.X) - space.StartInVideo);
}
else if (IsBetweenBounds(space.X + space.Width - SelectionPixelWidth, clickPoint.X,
space.X + space.Width + SelectionPixelWidth))
{
MouseSelection = new CanvasMouseSelection(IntervalMouseAction.ChangeEndTime, space,
XPosToMilliseconds(clickPoint.X) - space.EndInVideo);
}
else
{
MouseSelection = new CanvasMouseSelection(IntervalMouseAction.Dragging, space,
XPosToMilliseconds(clickPoint.X) - space.StartInVideo);
}
CaptureMouse();
}
private void AddSpaceEventHandlers(Space space)
{
//Adding a space depends on where you right clicked so we create and add it in the view
//Set space only if the video is loaded/playing/recording/etc
if (_videoMedia.CurrentState != LiveDescribeVideoStates.VideoNotLoaded)
DrawDescribableInterval(space);
space.MouseDown += (sender1, e1) =>
{
if (Mouse.LeftButton == MouseButtonState.Pressed)
{
_descriptionInfoTabViewModel.SelectedSpace = space;
SpaceAndDescriptionsTabControl.SpacesListView.ScrollToCenterOfView(space);
}
};
space.PropertyChanged += (o, args) =>
{
if (args.PropertyName.Equals("StartInVideo") || args.PropertyName.Equals("EndInVideo") || args.PropertyName.Equals("SetStartAndEndInVideo"))
DrawDescribableInterval(space);
};
space.NavigateToRequested += (o, args) =>
{
UpdateMarkerPosition((space.StartInVideo / _videoDuration) * (_audioCanvas.Width) - MarkerOffset);
UpdateVideoPosition((int)space.StartInVideo);
//Scroll 1 second before the start in video of the space
TimeLineScrollViewer.ScrollToHorizontalOffset((_audioCanvas.Width / _videoDuration) *
(space.StartInVideo - 1000));
_descriptionInfoTabViewModel.SelectedSpace = space;
SpaceAndDescriptionsTabControl.SpacesListView.ScrollToCenterOfView(space);
};
}
private void SetSpaceLocation(Space space)
{
SetIntervalLocation(space, AudioCanvas);
}
public void AddSpaceEventHandlers(Space space)
{
//Adding a space depends on where you right clicked so we create and add it in the view
//Set space only if the video is loaded/playing/recording/etc
if (_viewmodel.MediaViewModel.MediaVideo.CurrentState != LiveDescribeVideoStates.VideoNotLoaded)
SetSpaceLocation(space);
space.NavigateToRequested += (o, args) =>
{
UpdateMarkerPosition((space.StartInVideo / _videoDurationMsec) * (AudioCanvas.Width) - MarkerOffset);
UpdateVideoPosition((int)space.StartInVideo);
//Scroll 1 second before the start in video of the space
TimeLineScrollViewer.ScrollToHorizontalOffset(
(AudioCanvas.Width / _videoDurationMsec) * (space.StartInVideo - 1000));
};
space.PropertyChanged += (sender, args) =>
{
if (args.PropertyName == "IsSelected" || args.PropertyName == "IsRecordedOver")
Dispatcher.Invoke(() => AudioCanvas.DrawSpaces());
};
space.PropertyChanged += (o, e) =>
{
if (e.PropertyName == "StartInVideo"
|| e.PropertyName == "EndInVideo"
|| e.PropertyName == "SetStartAndEndInVideo")
SetSpaceLocation(space);
};
}
public DeleteSpaceHistoryItem(ObservableCollection<Space> collection, Space element)
{
_collection = collection;
_elementRemoved = element;
}
private void AddSpaceEventHandlers(Space space)
{
space.MouseDown += (sender1, e1) =>
{
if (Mouse.LeftButton == MouseButtonState.Pressed)
{
_intervalInfoListViewModel.SelectedSpace = space;
SpaceAndDescriptionsTabControl.SpacesListView.ScrollToCenterOfView(space);
}
};
space.NavigateToRequested += (o, args) =>
{
_intervalInfoListViewModel.SelectedSpace = space;
SpaceAndDescriptionsTabControl.SpacesListView.ScrollToCenterOfView(space);
};
TimelineControl.AddSpaceEventHandlers(space);
}
public void InsertSpaceForInsertUndoRedo(ObservableCollection<Space> collection, Space element)
{
var cmd = new InsertSpaceHistoryItem(collection, element);
Push(_undoStack, cmd); _redoStack.Clear();
}
