private void pictureBox1_Paint(object sender, PaintEventArgs e)
{
if (selectRectangle != Rectangle.Empty)
{
Brush selectRectangleBrush = new SolidBrush(Color.AliceBlue);
Pen selectRectanglePen = new Pen(Color.Black, 1);
selectRectanglePen.DashStyle = System.Drawing.Drawing2D.DashStyle.Dash;
e.Graphics.FillRectangle(selectRectangleBrush, selectRectangle);
e.Graphics.DrawRectangle(selectRectanglePen, selectRectangle);
selectRectangleBrush.Dispose();
selectRectanglePen.Dispose();
}
Elements.Draw(e.Graphics);
if (currentShape != null)
{
currentShape.Draw(e.Graphics);
}
}