public void Start()
{
var win = App.Current.MainWindow as Designer;
Ellipse ellipse = new Ellipse();
var started = false;
var MapCanvas = win.MapCanvas;
MapCanvas.CaptureMouse();
ellipse.Fill = win.backgroundColorPanel.Background;
ellipse.Stroke = win.foregroundColorPanel.Background;
ellipse.StrokeThickness = 1;
MapCanvas.Children.Add(ellipse);
MapCanvas.PreviewMouseLeftButtonUp += (sender, args) =>
{
if (finished)
{
return;
}
MapCanvas.ReleaseMouseCapture();
//poly.Points.RemoveAt(poly.Points.Count );
var grd = new Viewbox();
MapCanvas.Children.Remove(ellipse);
grd.Child = (ellipse);
var miny = Canvas.GetTop(ellipse);
var minx = Canvas.GetLeft(ellipse);
Canvas.SetTop(grd, miny);
Canvas.SetLeft(grd, minx);
ellipse.Margin = new Thickness(0);
ellipse.VerticalAlignment = VerticalAlignment.Stretch;
ellipse.HorizontalAlignment = HorizontalAlignment.Stretch;
MapCanvas.Children.Add(grd);
ShapeHandler.SelectedImage = grd;
ShapeHandler.InitImageHandlers(ref grd);
finished = true;
Dispose();
};
Point startPoint = new Point();
MapCanvas.PreviewMouseLeftButtonDown += (sender, args) =>
{
if (finished)
{
return;
}
var pos = args.GetPosition(MapCanvas);
Canvas.SetTop(ellipse, pos.Y);
Canvas.SetLeft(ellipse, pos.X);
startPoint = pos;
started = true;
};
MapCanvas.PreviewMouseMove += (sender, args) =>
{
if (finished || !started)
{
return;
}
var pos = args.GetPosition(MapCanvas);
var x = Math.Min(pos.X, startPoint.X);
var y = Math.Min(pos.Y, startPoint.Y);
var w = Math.Max(pos.X, startPoint.X) - x;
var h = Math.Max(pos.Y, startPoint.Y) - y;
ellipse.Width = w;
ellipse.Height = h;
Canvas.SetLeft(ellipse, x);
Canvas.SetTop(ellipse, y);
};
}
public void Start()
{
var win = App.Current.MainWindow as Designer;
Polygon poly = new Polygon();
var MapCanvas = win.MapCanvas;
MapCanvas.CaptureMouse();
poly.FillRule = FillRule.Nonzero;
poly.Fill = win.backgroundColorPanel.Background;
poly.Stroke = win.foregroundColorPanel.Background;
poly.StrokeThickness = 1;
MapCanvas.Children.Add(poly);
MapCanvas.PreviewMouseRightButtonDown += (sender, args) =>
{
if (finished)
{
return;
}
MapCanvas.ReleaseMouseCapture();
//poly.Points.RemoveAt(poly.Points.Count );
var grd = new Viewbox();
MapCanvas.Children.Remove(poly);
grd.Child = (poly);
var miny = poly.Points.Min(_ => _.Y);
var minx = poly.Points.Min(_ => _.X);
Canvas.SetTop(grd, miny);
Canvas.SetLeft(grd, minx);
PointCollection pc = new PointCollection();
for (int index = 0; index < poly.Points.Count; index++)
{
var point = poly.Points[index];
point.Y = point.Y - miny;
point.X = point.X - minx;
pc.Add(point);
}
poly.Points = pc;
poly.Margin = new Thickness(0);
poly.VerticalAlignment = VerticalAlignment.Stretch;
poly.HorizontalAlignment = HorizontalAlignment.Stretch;
MapCanvas.Children.Add(grd);
ShapeHandler.SelectedImage = grd;
ShapeHandler.InitImageHandlers(ref grd);
finished = true;
Dispose();
};
MapCanvas.PreviewMouseLeftButtonDown += (sender, args) =>
{
if (finished)
{
return;
}
var pos = args.GetPosition(MapCanvas);
if (poly.Points.Count == 0)
{
poly.Points.Add(pos);
poly.Points.Add(pos);
}
else
{
poly.Points[poly.Points.Count - 1] = pos;
poly.Points.Add(pos);
}
};
MapCanvas.PreviewMouseMove += (sender, args) =>
{
if (finished)
{
return;
}
var pos = args.GetPosition(MapCanvas);
if (poly.Points.Count != 0)
{
poly.Points[poly.Points.Count - 1] = pos;
}
};
}