public override void Draw(Graphics Gr)
{
if (Gr == null)
{
throw new ArgumentNullException("Gr");
}
LB7SegmentDisplay ctrl = this.Display;
if (ctrl == null)
{
throw new NullReferenceException("Associated control is not valid");
}
RectangleF _rc = new RectangleF(0, 0, ctrl.Width, ctrl.Height);
Gr.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.AntiAlias;
this.DrawBackground(Gr, _rc);
this.DrawOffSegments(Gr, _rc);
this.DrawValue(Gr, _rc);
}
/// <summary>
/// Update the controls of the meter
/// </summary>
protected virtual void UpdateControls()
{
int count = this.Format.Length;
this._dpPos = -1;
char[] seps = new char[] { '.', ',' };
int sepIndex = this.Format.IndexOfAny(seps);
if (sepIndex > 0)
{
count--;
this._dpPos = sepIndex - 1;
this._numDigits = count;
}
this._numDigits = count;
this.Controls.Clear();
if (this.Signed != false)
{
LB7SegmentDisplay disp = new LB7SegmentDisplay();
disp.Name = "digit_sign";
disp.Value = -1;
this.Controls.Add(disp);
}
for (int idx = 0; idx < count; idx++)
{
LB7SegmentDisplay disp = new LB7SegmentDisplay();
disp.Name = "digit_" + idx.ToString();
disp.Click += this.DisplayClicked;
if (sepIndex - 1 == idx)
disp.ShowDP = true;
this.Controls.Add(disp);
}
this.RepositionControls();
}
