public void Execute()
{
group = new GroupedFigures();
figureObservers = new Dictionary <Figure, List <IObserver> >();
group.Select();
for (var it = figures.CreateIterator(); !it.EOL;)
{
var bufferFigure = it.GetCurrent().Value;
if (bufferFigure.Selected)
{
if (bufferFigure.isSticky)
{
figureObservers.Add(bufferFigure, new List <IObserver>(bufferFigure.GetObservers()));
bufferFigure.RemoveAllObserver();
}
group.Add(bufferFigure);
figures.Remove(bufferFigure);
}
else
{
it.Next();
}
}
if (group.Count > 0)
{
figures.AddLast(group);
}
else
{
group = null;
}
figures.NotifyAll();
}
public Figure CreateFigure(string nameFigure, int x = 0, int y = 0, int width = 1, int height = 1)
{
Figure figure;
switch (nameFigure)
{
case "R":
case "Rectangle":
figure = new Rectangle();
break;
case "E":
case "Ellipse":
figure = new Ellipse();
break;
case "Group":
figure = new GroupedFigures();
break;
case "T":
case "Triangle":
figure = new Triangle();
break;
default:
return(null);
}
figure.X = x;
figure.Y = y;
figure.Width = width;
figure.Height = height;
return(figure);
}
void ExtractGroup(GroupedFigures group)
{
for (var grit = group.figures.CreateIterator(); !grit.EOL; grit.Next())
{
sizedFigures.Add(grit.GetCurrent().Value, new Size(grit.GetCurrent().Value.Width, grit.GetCurrent().Value.Height));
if (grit.GetCurrent().Value is GroupedFigures gr)
{
ExtractGroup(gr);
}
}
}
public void Unexecute()
{
var group = new GroupedFigures();
group.Select();
for (var it = ungroupedFigures.CreateIterator(); !it.EOL; it.Next())
{
var bufferFigure = it.GetCurrent().Value;
if (bufferFigure.isSticky)
{
bufferFigure.RemoveAllObserver();
}
group.Add(bufferFigure);
figures.Remove(bufferFigure);
}
if (group.Count > 0)
{
figures.AddLast(group);
}
}
