/// <summary>
/// Handle the OnEndCreation event
/// </summary>
/// <param name="e">Provides data for the MouseEventArgs event</param>
private void OnEndCreation(MouseEventArgs e)
{
SetTextColorDialog dialog = new SetTextColorDialog();
Window window = new Window
{
Title = "Name and color",
Content = dialog,
SizeToContent = SizeToContent.WidthAndHeight,
ResizeMode = ResizeMode.NoResize
};
if (window.ShowDialog() == true)
{
EllipseInfo ellipse = new EllipseInfo();
ellipse.Shape.Height = Math.Abs(this.a.Y - this.b.Y);
ellipse.Shape.Width = Math.Abs(this.a.X - this.b.X);
ellipse.Shape.Stroke = dialog.Contour;
ellipse.Shape.StrokeThickness = EllipseInfo.DefaultStrokeThickness;
ellipse.Shape.Fill = dialog.Fill;
ellipse.Name = dialog.NameItem;
ellipse.TopLeft = new Point(this.a.X > this.b.X ? this.b.X : this.a.X, this.a.Y > this.b.Y ? this.b.Y : this.a.Y);
this.AddEllipse(ellipse);
}
Canvas.Children.Remove(this.ellipseTemp);
this.isDraw = false;
}
/// <summary>
/// Adds <see cref = "EllipseInfo"/> to drawing area
/// </summary>
/// <param name="ellipse"><see cref = "EllipseInfo"/> to add</param>
public void AddEllipse(EllipseInfo ellipse)
{
this.ellipses.Add(ellipse);
Canvas.SetZIndex(ellipse.Shape, 0);
Canvas.SetLeft(ellipse.Shape, ellipse.TopLeft.X);
Canvas.SetTop(ellipse.Shape, ellipse.TopLeft.Y);
this.Canvas.Children.Add(ellipse.Shape);
this.OnEllipseAdded?.Invoke(this, new EllipseListChangedEventArgs(ellipse, this));
}
/// <summary>
/// Removes ellipse from list
/// </summary>
/// <param name="ellipse"><see cref = "EllipseInfo"/> to remove</param>
public void RemoveEllipse(EllipseInfo ellipse)
{
this.ellipses.Remove(ellipse);
if (ReferenceEquals(this.currentEllipse, ellipse))
{
this.currentEllipse = null;
}
Canvas.Children.Remove(ellipse.Shape);
this.OnEllipseRemoved?.Invoke(this, new EllipseListChangedEventArgs(ellipse, this));
}
/// <summary>
/// Clears list of <see cref = "EllipseInfo"/>
/// </summary>
public void Clear()
{
foreach (EllipseInfo ellipse in this.ellipses)
{
this.OnEllipseRemoved?.Invoke(this, new EllipseListChangedEventArgs(ellipse, this));
}
this.currentEllipse = null;
this.ellipses.Clear();
Canvas.Children.Clear();
}
/// <summary>
/// Shift <see cref = "EllipseInfo"/> so it has top left <see cref = "Point"/> similar to given
/// </summary>
/// <param name="ellipse"><see cref = "EllipseInfo"/> to shift</param>
/// <param name="shift"><see cref = "Point"/> destination</param>
private void MoveEllipse(EllipseInfo ellipse, Point shift)
{
ellipse.TopLeft = new Point(ellipse.TopLeft.X + shift.X, ellipse.TopLeft.Y + shift.Y);
Canvas.SetTop(ellipse.Shape, ellipse.TopLeft.Y);
Canvas.SetLeft(ellipse.Shape, ellipse.TopLeft.X);
}
