public override void MouseLeftButtonUp(Point point)
{
if (selectedAtLeastOne)
{
return;
}
if (Figure != null)
{
ObservableFigure tmp = Figure as ObservableFigure; // aby moc wywolac np. ObservableFigure.Attach()
// po puszczeniu myszki sprawdzamy jakie figury są zaznaczone
// pobranie listy figur z MainWindow
List <Figure> figures = ((MainWindow)Application.Current.MainWindow).GetFigureList();
// przechodzimy po wszystkich figurach
foreach (Figure figure in figures)
{
if (tmp.Contains(figure)) // jezeli obserwowany obejmuje dana figure
{
tmp.Attach(figure); // dodajemy dana figure do listy obserwatorow
if (selectedAtLeastOne == false)
{
selectedAtLeastOne = true;
}
}
}
}
}
public override void MouseLeftButtonDown(Point point)
{
if (Figure != null) // jesli nie mamy zadnej figury to wiadomo, ze musimy dodac nowa
{
// jezeli myszka jest nad obserwowanym to chcemy przesuwac
if (Figure.adaptedPath.IsMouseOver)
{
ToMove = true;
widthShift = 0;
lengthShift = 0;
return;
}
}
// w przeciwnym wypadku tworzymy nowego obserwowanego
if (selectedAtLeastOne == true) //Odpinamy wszystkich
{
ObservableFigure tmp = Figure as ObservableFigure;
tmp.DetachAll();
selectedAtLeastOne = false;
}
Figure = new ObservableFigure(new Path());
StartPoint = point;
((MainWindow)Application.Current.MainWindow).AddObservable(Figure);
ToMove = false;
}
private void RestoreCanvas(int index)
{
if (SelectedFigure != null)
{
SelectedFigure = null;
}
if (ObservableFigure != null)
{
ObservableFigure = null;
}
string oldCanvasFile = this.originator.RestoreFromMemento(this.caretaker.GetMemento(index)); //Odczyt z listy Memento
string CanvasString;
try
{
using (var sr = new StreamReader(this.canvasPath + oldCanvasFile))
{
CanvasString = sr.ReadToEnd();
}
Canvas oldCanvas = XamlReader.Parse(CanvasString) as Canvas;
MainGrid.Children.Remove(canvas);
canvas = null;
canvas = oldCanvas;
SetCanvas();
FigureList = RestoreFigureList(canvas.Children);
}
catch (IOException e)
{
MessageBox.Show("Nie można odczytać pliku: " + e.Message);
}
}
private void ResetObservableFigure()
{
if (ObservableFigure != null)
{
ObservableFigure.DetachAll();
canvas.Children.Remove(ObservableFigure.adaptedPath);
ObservableFigure = null;
}
}
public void AddObservable(Figure figure)
{
// musimy usunac starego obserwowanego z canvasa
if (ObservableFigure != null)
{
canvas.Children.Remove(ObservableFigure.adaptedPath);
}
ObservableFigure = figure as ObservableFigure;
// dodanie go do canvasa, zeby byl widoczny
canvas.Children.Add(figure.adaptedPath);
}
