private void Eraser_Check(object sender, RoutedEventArgs e)
 {
     painting_mode = Painting_Mode.Eraser;
 }
 private void FullFill_Check(object sender, RoutedEventArgs e)
 {
     painting_mode = Painting_Mode.FullFill;
 }
 private void Filed_Rectangle_Check(object sender, RoutedEventArgs e)
 {
     painting_mode = Painting_Mode.Filed_Rectangle;
 }
 private void Circle_Check(object sender, RoutedEventArgs e)
 {
     painting_mode = Painting_Mode.Circle;
 }
 private void Filed_Polygon_Check(object sender, RoutedEventArgs e)
 {
     painting_mode = Painting_Mode.Filed_Polygon;
 }
 private void Line_Check(object sender, RoutedEventArgs e)
 {
     painting_mode = Painting_Mode.Line;
 }
 private void Pencil_Check(object sender, RoutedEventArgs e)
 {
     painting_mode = Painting_Mode.Pencil;
 }