private void Paint_panel_MouseUp(object sender, MouseEventArgs e)
{
if (obj != null)
{
obj.Finish1 = e.Location;
buf.Add(obj);
}
obj = new Line();
flag_mouseclick = false;
Paint_panel.Invalidate();
}
/// <summary>
/// Открыть файл
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void openToolStripMenuItem_Click(object sender, EventArgs e)
{
buf.Open();
Paint_panel.Invalidate();
}
/// <summary>
/// Вернуть изменение
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void reDoToolStripMenuItem_Click(object sender, EventArgs e)
{
buf.drawStep();
Paint_panel.Invalidate();
}