public void SetState(List <IShape> drawnShapes, ToolBar toolbar)
{
DrawnShapes.Clear();
foreach (var shape in drawnShapes)
{
DrawnShapes.Add((IShape)shape.Clone());
}
ToolBar = (ToolBar)toolbar.Clone();
}
public void DrawCurrentShape(int x, int y)
{
if (_currentShape != null)
{
_currentShape.Accept(new CenterShapeOnDrawing(x, y));
DrawnShapes.Add(_currentShape);
_g.RefreshView();
_currentShape = null;
CreateMemento();
}
}
public void CreateGroup(GroupShapes gr)
{
foreach (var shape in gr.Children)
{
DrawnShapes.Remove(shape);
SelectedShapes.Remove(shape);
}
DrawnShapes.Add(gr);
SelectedShapes.Add(gr);
CreateMemento();
}
public void RestoreState(Memento newState)
{
DrawnShapes.Clear();
SelectedShapes.Clear();
foreach (var shape in newState.DrawnShapes)
{
DrawnShapes.Add((IShape)shape.Clone());
}
ToolBar = (ToolBar)newState.ToolBar.Clone();
_g.RefreshView();
_g.RefreshToolBar();
}
public void DeleteGroup(GroupShapes gr)
{
if (DrawnShapes.Contains(gr))
{
DrawnShapes.Remove(gr);
foreach (var shape in gr.Children)
{
DrawnShapes.Add(shape);
}
SelectedShapes.Clear();
_g.RefreshView();
}
CreateMemento();
}
private void AddShape()
{
if (PendingShape != null)
{
PendingShape.Mode = ShapeModes.Drawn;
DrawnShapes.Add(PendingShape);
int idx = DrawnShapesCombo.SelectedIndex;
DrawnShapesCombo.ItemsSource = null;
DrawnShapesCombo.ItemsSource = DrawnShapes;
DrawnShapesCombo.SelectedIndex = idx;
PendingShape = null;
}
canvasControl.Invalidate();
}
private async void ShapeAdd_Clicked(object sender, RoutedEventArgs e)
{
double sx, sy, ex, ey;
try
{
sx = double.Parse(AddStartLocationX.Text);
sy = double.Parse(AddStartLocationY.Text);
ex = double.Parse(AddEndLocationX.Text);
ey = double.Parse(AddEndLocationY.Text);
}
catch (Exception)
{
await InvalidValuesFormatDialog();
return;
}
Point start = new Point(sx, sy);
Point end = new Point(ex, ey);
if (CurrentShapeType == ShapeType.Rectangle)
{
DrawnShapes.Add(new MRectangle(start, end));
}
else if (CurrentShapeType == ShapeType.Circle)
{
start = new Point((ex - sx) / 2, (ey - sy) / 2);
DrawnShapes.Add(new MCircle(start, end));
}
else if (CurrentShapeType == ShapeType.Line)
{
DrawnShapes.Add(new MLine(start, end));
}
canvasControl.Invalidate();
}