private void AddFigureToCanvas(Figure singleFigure)
{
Shape figure = null;
if (singleFigure.Fig == FigureType.Line) // line
{
figure = new Line();
(figure as Line).X1 = singleFigure.X1;
(figure as Line).Y1 = singleFigure.Y1;
(figure as Line).X2 = singleFigure.X2;
(figure as Line).Y2 = singleFigure.Y2;
}
else
{
if (singleFigure.Fig == FigureType.Ellipse) // ellipse
{
figure = new Ellipse();
}
else if (singleFigure.Fig == FigureType.Rectangle) // rectangle
{
figure = new Rectangle();
}
else
{
return;
}
figure.Height = Math.Abs(singleFigure.Y2 - singleFigure.Y1);
figure.Width = Math.Abs(singleFigure.X2 - singleFigure.X1);
Windows.UI.Xaml.Controls.Canvas.SetTop(figure, Math.Min(singleFigure.Y1, singleFigure.Y2));
Windows.UI.Xaml.Controls.Canvas.SetLeft(figure,Math.Min(singleFigure.X1, singleFigure.X2));
}
figure.StrokeThickness = 10;
figure.Fill = new SolidColorBrush(singleFigure.Color);
figure.Stroke = figure.Fill;
Canvas.Children.Add(figure);
}
private void Canvas_PointerReleased(object sender, PointerRoutedEventArgs e)
{
if (figureStartPoint != null)
{
var index = (int)((Figures.Margin.Left - 10) / 70);
Figure figure = new Figure();
figure.X1 = figureStartPoint.Position.X;
figure.Y1 = figureStartPoint.Position.Y;
figure.X2 = e.GetCurrentPoint(Canvas).Position.X;
figure.Y2 = e.GetCurrentPoint(Canvas).Position.Y;
figure.Fig = (FigureType)index;
switch ((int)rotateColors.Angle)
{
case 0:
figure.Color = Windows.UI.Color.FromArgb(255, 255, 0, 0);
break;
case 90:
figure.Color = Windows.UI.Color.FromArgb(255, 0, 255, 0);
break;
case 180:
figure.Color = Windows.UI.Color.FromArgb(255, 0, 0, 255);
break;
case 270:
figure.Color = Windows.UI.Color.FromArgb(255, 0, 0, 0);
break;
default:
break;
}
AddFigureToCanvas(figure);
figureStartPoint = null;
}
}
private string SerializeCanvas()
{
var shapes = new List<Figure>();
foreach (var item in Canvas.Children)
{
var shape = item as Shape;
if (shape != null)
{
var newShape = new Figure();
var line = shape as Line;
if (line != null)
{
newShape.Fig = FigureType.Line;
newShape.X1 = line.X1;
newShape.Y1 = line.Y1;
newShape.X2 = line.X2;
newShape.Y2 = line.Y2;
}
else
{
newShape.Fig = ((shape as Rectangle) != null) ? FigureType.Rectangle : FigureType.Ellipse;
newShape.X1 = Windows.UI.Xaml.Controls.Canvas.GetTop(shape);
newShape.Y1 = Windows.UI.Xaml.Controls.Canvas.GetLeft(shape);
newShape.X2 = newShape.X1 + shape.Width;
newShape.Y2 = newShape.Y1 + shape.Height;
}
newShape.Color = (shape.Fill as SolidColorBrush).Color;
shapes.Add(newShape);
}
}
var result = JsonConvert.SerializeObject(shapes);
return result;
}