/// <inheritdoc />
protected override void DataAvailable(object sender, DataAvailableEventArgs <EvEvent> e)
{
var data = e.Data;
var eventType = (DigitizerEventType)data.Type;
switch (eventType)
{
case DigitizerEventType.Syn:
State = new StylusState(_currentTool, _currentPosition, _currentPressure, _currentDistance, _currentTilt);
StylusUpdate?.Invoke(null, State);
break;
case DigitizerEventType.Key:
var key = (DigitizerEventKeyCode)data.Code;
var state = (ButtonState)data.Value;
ButtonStates[key] = state;
switch (key)
{
case DigitizerEventKeyCode.BtnToolPen:
_currentTool = StylusTool.Pen;
ToolChanged?.Invoke(null, _currentTool);
break;
case DigitizerEventKeyCode.BtnToolRubber:
_currentTool = StylusTool.Eraser;
ToolChanged?.Invoke(null, _currentTool);
break;
case DigitizerEventKeyCode.BtnTouch:
case DigitizerEventKeyCode.BtnStylus:
case DigitizerEventKeyCode.BtnStylus2:
if (state == ButtonState.Pressed)
{
Pressed?.Invoke(null, key);
}
else
{
Released?.Invoke(null, key);
}
break;
default:
throw new ArgumentOutOfRangeException(nameof(key), key, key.GetType().Name);
}
break;
case DigitizerEventType.Abs:
var eventCode = (DigitizerEventAbsCode)data.Code;
switch (eventCode)
{
case DigitizerEventAbsCode.AbsX:
_currentPosition.X = data.Value;
break;
case DigitizerEventAbsCode.AbsY:
_currentPosition.Y = data.Value;
break;
case DigitizerEventAbsCode.AbsPressure:
_currentPressure = data.Value;
break;
case DigitizerEventAbsCode.AbsDistance:
_currentDistance = data.Value;
break;
case DigitizerEventAbsCode.AbsTiltX:
_currentTilt.X = data.Value;
break;
case DigitizerEventAbsCode.AbsTiltY:
_currentTilt.Y = data.Value;
break;
default:
throw new ArgumentOutOfRangeException(nameof(eventCode), eventCode, eventCode.GetType().Name);
}
break;
default:
throw new ArgumentOutOfRangeException(nameof(eventType), eventType, eventType.GetType().Name);
}
}
/// <inheritdoc />
protected override void DataAvailable(object sender, DataAvailableEventArgs <EvEvent> e)
{
var data = e.Data;
var eventType = (DigitizerEventType)data.Type;
switch (eventType)
{
case DigitizerEventType.Syn:
State = new StylusState(_currentTool, _currentPosition, _currentPressure, _currentDistance,
_currentTilt);
StylusUpdate?.Invoke(null, State);
if (_currentTool == StylusTool.None)
{
_currentDistance = 255;
_currentPressure = 0;
_currentPosition = Point.Empty;
_currentTilt = Point.Empty;
}
else if (_currentDistance > 0)
{
_currentPressure = 0;
}
else if (_currentPressure > 0)
{
_currentDistance = 0;
}
break;
case DigitizerEventType.Key:
var key = (DigitizerEventKeyCode)data.Code;
var state = (ButtonState)data.Value;
ButtonStates[key] = state;
switch (key)
{
case DigitizerEventKeyCode.ToolPen:
_currentTool = state == ButtonState.Pressed ? StylusTool.Pen : StylusTool.None;
ToolChanged?.Invoke(null, _currentTool);
break;
case DigitizerEventKeyCode.ToolRubber:
_currentTool = state == ButtonState.Pressed ? StylusTool.Eraser : StylusTool.None;
ToolChanged?.Invoke(null, _currentTool);
break;
case DigitizerEventKeyCode.Touch:
// Stylus touch input unreliable, but data is redundant
// because of ABS_PRESSURE
break;
case DigitizerEventKeyCode.Stylus:
case DigitizerEventKeyCode.Stylus2:
if (state == ButtonState.Pressed)
{
Pressed?.Invoke(null, key);
}
else
{
Released?.Invoke(null, key);
}
break;
default:
throw new ArgumentOutOfRangeException(nameof(key), key, key.GetType().Name);
}
break;
case DigitizerEventType.Abs:
var eventCode = (DigitizerEventAbsCode)data.Code;
switch (eventCode)
{
case DigitizerEventAbsCode.AbsX:
_currentPosition.X = data.Value;
break;
case DigitizerEventAbsCode.AbsY:
_currentPosition.Y = data.Value;
break;
case DigitizerEventAbsCode.AbsPressure:
_currentPressure = data.Value;
break;
case DigitizerEventAbsCode.AbsDistance:
_currentDistance = data.Value;
break;
case DigitizerEventAbsCode.AbsTiltX:
_currentTilt.X = data.Value;
break;
case DigitizerEventAbsCode.AbsTiltY:
_currentTilt.Y = data.Value;
break;
default:
throw new ArgumentOutOfRangeException(nameof(eventCode), eventCode,
eventCode.GetType().Name);
}
break;
default:
throw new ArgumentOutOfRangeException(nameof(eventType), eventType, eventType.GetType().Name);
}
}