public void Execute(params string[] parameters)
{
if (parameters.Length > 0)
{
Console.WriteLine("undo не нужны аргументы");
return;
}
var shapes = CommandHistoryContainer.GetInstance().OnUndo();
if (shapes == null)
{
Console.WriteLine("Нет действий, которые можно было бы откатить");
return;
}
var currentShapes = picture.shapes;
foreach (var shape in currentShapes.ToList())
{
picture.Remove(shape);
}
foreach (var shape in shapes)
{
picture.Add(shape);
}
SelectionContainer.GetInstance().OnUndo(picture.shapes);
}
public override void Execute(params string[] parameters)
{
try
{
var uniqueIndexes = new List <string>();
var shapeLocators = new List <ShapeLocator>();
if (parameters.Length < 1)
{
throw new ArgumentException("Отсуствует аргумент");
}
foreach (var parameter in parameters)
{
if (uniqueIndexes.IndexOf(parameter) == -1)
{
uniqueIndexes.Add(parameter);
shapeLocators.Add(ShapeLocator.Parse(parameter, picture));
}
}
foreach (var shapeLocator in shapeLocators)
{
var shape = shapeLocator.Shape;
var parent = shapeLocator.Parent;
if (parent != null)
{
parent.Shapes.Remove(shape);
if (parent.Shapes.Count < 2)
{
var grandParent = shapeLocator.GrandParent;
if (grandParent != null)
{
grandParent.Shapes.Add(parent.Shapes[0]);
grandParent.Shapes.Remove(parent);
}
else
{
picture.Add(parent.Shapes[0]);
picture.Remove(parent);
}
}
}
else
{
SelectionContainer.GetInstance().OnMainRemove(shape);
picture.Remove(shape);
}
}
UpdateHistory();
SelectionContainer.GetInstance().OnMainRemove(picture);
}
catch (ArgumentException e)
{
Console.WriteLine(e.Message);
}
}
public void Ungroup(string[] indexes)
{
var shape = ShapeLocator.Parse(indexes[0], this);
SelectionContainer.GetInstance().OnUngroup(shape);
if (shape.Shape is CompoundShape)
{
var compoundShape = shape.Shape as CompoundShape;
if (shape.Parent != null)
{
shape.Parent.Shapes.Remove(shape.Shape);
foreach (var currentShape in compoundShape.Shapes)
{
shape.Parent.Shapes.Add(currentShape);
}
}
else
{
Remove(shape.Shape);
foreach (var currentShape in compoundShape.Shapes)
{
Add(currentShape);
}
}
}
else
{
throw new ArgumentException($"Фигура с указанным индексом '{indexes[0]}' не составная");
}
}
protected IEnumerable <IShape> GetShapes(string[] parameters, int shapeIndex)
{
if (parameters.Length < shapeIndex)
{
var shapes = SelectionContainer.GetInstance().Shapes;
if (shapes.Count == 0)
{
throw new ArgumentException("Для команды необходимы аргументы либо выбор с помощью " +
"команды 'select'");
}
return(shapes);
}
var shape = ShapeLocator.Parse(parameters[shapeIndex - 1], picture).Shape;
return(new List <IShape> {
shape
});
}
public static ShapeLocator Parse(string identifier)
{
var shapeLocator = new ShapeLocator();
var identifierDecomp = identifier.Split(':');
int index;
if (identifierDecomp.Length > 0 && int.TryParse(identifierDecomp[0], out index))
{
try
{
shapeLocator.Shape = SelectionContainer.GetInstance().Shapes[index];
}
catch (ArgumentOutOfRangeException)
{
throw new ArgumentException("Фигуры с таким индетефикатором " + identifier + " не существует");
}
}
else
{
throw new ArgumentException("Формат идеентификатора '" + identifier + "' не верен");
}
if (identifierDecomp.Length > 1)
{
int[] underPosition = new int[identifierDecomp.Length - 1];
for (int i = 0; i < identifierDecomp.Length - 1; i++)
{
if (!int.TryParse(identifierDecomp[i + 1], out underPosition[i]))
{
throw new ArgumentException("Формат идеентификатора '" + identifier + "' не верен");
}
}
Search(shapeLocator, underPosition);
}
return(shapeLocator);
}