/// <summary> /// Set meter band value /// </summary> /// <param name="arrayValue">Array value for the bands</param> /// <param name="offset">Starting offset position</param> /// <param name="size">Number of values to set</param> /// <returns></returns> public bool SetData(int[] arrayValue, int offset, int size) { if (arrayValue == null) { throw new ArgumentNullException("arrayValue"); } if (arrayValue.Length < (offset + size)) { throw new ArgumentOutOfRangeException("arrayValue"); } if (this.InvokeRequired) { SetDataDelegate setDelegate = new SetDataDelegate(this.SetData); return((bool)this.Invoke(setDelegate, arrayValue, offset, size)); } bool isRunning = this.IsActive; Monitor.Enter(this._meterData); int maxIndex = offset + size; for (int i = offset; i < maxIndex; i++) { if (i < this._meterData.Length) { PeakMeterData pm = this._meterData[i]; pm.Value = Math.Min(arrayValue[i], this._MaxRangeValue); pm.Value = Math.Max(pm.Value, 0); if (pm.Falloff < pm.Value) { pm.Falloff = pm.Value; pm.Speed = this._FalloffSpeed; } this._meterData[i] = pm; } } Monitor.Exit(this._meterData); // check that timer should be restarted if (_AnimDelay != Timeout.Infinite) { if (_animationTimer == null) { StartAnimation(_AnimDelay); } } else { Refresh(); } return(isRunning); }
protected void TimerCallback(Object thisObject) { try { // refresh now! Control thisControl = thisObject as Control; if (thisControl != null && thisControl.IsHandleCreated) { thisControl.Invoke(new MethodInvoker(Refresh)); } else { return; } } catch (Exception) { // just ignore } int nDecValue = _MaxRangeValue / _LEDCount; bool noUpdate = true; Monitor.Enter(this._meterData); for (int i = 0; i < _meterData.Length; i++) { PeakMeterData pm = _meterData[i]; if (pm.Value > 0) { pm.Value -= (_LEDCount > 1 ? nDecValue : (_MaxRangeValue * DecrementPercent) / 100); if (pm.Value < 0) { pm.Value = 0; } noUpdate = false; } if (pm.Speed > 0) { pm.Speed -= 1; noUpdate = false; } if (pm.Speed == 0 && pm.Falloff > 0) { pm.Falloff -= (_LEDCount > 1 ? nDecValue >> 1 : 5); if (pm.Falloff < 0) { pm.Falloff = 0; } noUpdate = false; } // re-assign PeakMeterData _meterData[i] = pm; } Monitor.Exit(this._meterData); if (noUpdate) // Stop timer if no more data but do not reset ID { StopAnimation(); } }