/// <returns>Whether the data was written.</returns>
internal bool WriteUpdateMessageFromTransaction(IUpdateEncoder encoder)
{
if (DeleteSet.Clients.Count == 0 && !AfterState.Any(kvp => !BeforeState.TryGetValue(kvp.Key, out var clockB) || kvp.Value != clockB))
{
return(false);
}
DeleteSet.SortAndMergeDeleteSet();
EncodingUtils.WriteClientsStructs(encoder, Doc.Store, BeforeState);
DeleteSet.Write(encoder);
return(true);
}
/// <summary>
/// If 'type.parent' was added in current transaction, 'type' technically did not change,
/// it was just added and we should not fire events for 'type'.
/// </summary>
internal void AddChangedTypeToTransaction(AbstractType type, string parentSub)
{
var item = type._item;
if (item == null || (BeforeState.TryGetValue(item.Id.Client, out int clock) && item.Id.Clock < clock && !item.Deleted))
{
if (!Changed.TryGetValue(type, out var set))
{
set = new HashSet <string>();
Changed[type] = set;
}
set.Add(parentSub);
}
}
//Мышка нажата
/// <summary>
/// Обработчик события нажатия мышки
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
public void MouseDown(object sender, MouseEventArgs e)
{
if (e.Button == MouseButtons.Left)
{
if (_isFigurePicked &&
SelectedFigures != null)
{
if (IsPointOnFigure(e.Location))
{
if ((SelectedFigures != null) &&
SelectedFigures.ContainsKey(GetFigurePointOn(e.Location)))
{
_selectedFigure = _presenter.GetFigures()
[GetFigurePointOn(e.Location)];
//Сохраняем предыдущее состояние
BeforeState?.Clear();
foreach (var figure in SelectedFigures)
{
if (!_presenter.GetFigures().Contains(figure))
{
continue;
}
var index = figure.Key;
BeforeState?.Add(index, FigureFactory.CreateCopy(figure.Value));
}
MouseMoveDelegate -= MouseMoveSelecting;
MouseMoveDelegate += MouseMoveFigure;
MouseUpDelegate += MouseUpFigure;
_offsetX = _selectedFigure.Points.GetPoints()[0].X - e.X;
_offsetY = _selectedFigure.Points.GetPoints()[0].Y - e.Y;
}
}
else if (IsPointOnMarker(e.Location, out _pickedPoint))
{
MouseMoveDelegate -= MouseMoveSelecting;
MouseMoveDelegate += MouseMoveMarker;
MouseUpDelegate += MouseUpMarker;
BeforePointState?.Clear();
foreach (var figure in _presenter.GetFigures())
{
if (figure.Key != _pickedFigureIndex)
{
continue;
}
_oldFigureIndex = figure.Key;
BeforePointState?.Add(_oldFigureIndex,
FigureFactory.CreateCopy(figure.Value));
}
_offsetX = _pickedPoint.X - e.X;
_offsetY = _pickedPoint.Y - e.Y;
}
else
{
_isMouseDown = true;
}
}
else
{
_isMouseDown = true;
}
_originalMouseDownPoint = e.Location;
}
}
