/// <summary>
/// Change the state of the algorithm interpreter
/// </summary>
/// <param name="source">The source from where we changed the state (an interpreter usually)</param>
/// <param name="e">The new state</param>
private void ChangeState(object source, AlgorithmInterpreterStateEventArgs e)
{
#if !DEBUG
Task.Run(() =>
{
#endif
if (PreviewStateChanged != null)
{
PreviewStateChanged(source, e);
}
switch (e.State)
{
case AlgorithmInterpreterState.StoppedWithError:
case AlgorithmInterpreterState.PauseWithError:
case AlgorithmInterpreterState.PauseBreakpoint:
Break(true, e);
break;
case AlgorithmInterpreterState.Stopped:
Stop(true);
break;
case AlgorithmInterpreterState.Pause:
Pause(true);
break;
case AlgorithmInterpreterState.Preparing:
State = AlgorithmInterpreterState.Preparing;
break;
case AlgorithmInterpreterState.Ready:
State = AlgorithmInterpreterState.Ready;
break;
case AlgorithmInterpreterState.Running:
State = AlgorithmInterpreterState.Running;
break;
case AlgorithmInterpreterState.Log:
if (InDebugMode)
{
//Debug.WriteLine(e.LogMessage);
}
break;
default:
throw new ArgumentOutOfRangeException();
}
AddStateChangeHistory(e);
if (StateChanged != null)
{
StateChanged(source, e);
}
#if !DEBUG
});
#endif
}
/// <summary>
/// Add a new state to the historic
/// </summary>
/// <param name="algorithmInterpreterStateEventArgs">the new interpreter state</param>
private void AddStateChangeHistory(AlgorithmInterpreterStateEventArgs algorithmInterpreterStateEventArgs)
{
if (_stateChangedHistory.Count > 0)
{
var lastAlgorithmInterpreterStateEventArgs = _stateChangedHistory[_stateChangedHistory.Count - 1];
if (lastAlgorithmInterpreterStateEventArgs != null && lastAlgorithmInterpreterStateEventArgs.State == AlgorithmInterpreterState.Stopped)
{
return;
}
}
_stateChangedHistory.Add(algorithmInterpreterStateEventArgs);
}
/// <summary>
/// Put the program in pause after a breakpoint or an error
/// </summary>
private void Break(bool calledByChangeState, AlgorithmInterpreterStateEventArgs algorithmInterpreterState = null)
{
if (State == AlgorithmInterpreterState.Running)
{
if (algorithmInterpreterState != null)
{
Error = algorithmInterpreterState.Error;
DebugInfo = algorithmInterpreterState.DebugInfo;
switch (algorithmInterpreterState.State)
{
case AlgorithmInterpreterState.StoppedWithError:
Stop(calledByChangeState, true);
break;
case AlgorithmInterpreterState.PauseBreakpoint:
ProgramInterpreter.Breakpoint();
State = AlgorithmInterpreterState.PauseBreakpoint;
break;
case AlgorithmInterpreterState.PauseWithError:
if (!calledByChangeState)
{
ChangeState(this, new AlgorithmInterpreterStateEventArgs(AlgorithmInterpreterState.Pause));
}
else
{
State = AlgorithmInterpreterState.Pause;
}
break;
default:
throw new ArgumentOutOfRangeException();
}
}
else
{
if (!calledByChangeState)
{
ChangeState(this, new AlgorithmInterpreterStateEventArgs(AlgorithmInterpreterState.Pause));
}
else
{
State = AlgorithmInterpreterState.Pause;
}
}
}
}