/// <summary>
/// Function to fire the pointing device move event.
/// </summary>
/// <param name="newPosition">New position for the pointing device.</param>
/// <param name="setRelative">TRUE to calculate the relative motion of the device, FALSE to have the plug-in set it.</param>
/// <remarks>Some plug-ins provide their own relative position data, which is likely to be more accurate, so we can tell the library to not calculate in that instance.</remarks>
protected void OnPointingDeviceMove(PointF newPosition, bool setRelative)
{
if (newPosition != _position)
{
if (setRelative)
{
RelativePosition = new PointF(RelativePosition.X + (newPosition.X - _position.X), RelativePosition.Y + (newPosition.Y - _position.Y));
}
_position = newPosition;
}
else
{
if (setRelative)
{
RelativePosition = PointF.Empty;
}
return;
}
ConstrainData();
if (PointingDeviceMove == null)
{
return;
}
var e = new PointingDeviceEventArgs(Button, PointingDeviceButtons.None, _position, _wheel, RelativePosition, WheelDelta, 0);
PointingDeviceMove(this, e);
}
/// <summary>
/// Function to fire the pointing device button up event.
/// </summary>
/// <param name="button">Button that's being pressed.</param>
/// <param name="clickCount">Number of full clicks in a timed period.</param>
protected void OnPointingDeviceUp(PointingDeviceButtons button, int clickCount)
{
ConstrainData();
Button &= ~button;
if (PointingDeviceUp == null)
{
return;
}
var e = new PointingDeviceEventArgs(button, Button, _position, _wheel, RelativePosition, WheelDelta, clickCount);
PointingDeviceUp(this, e);
}
/// <summary>
/// Function to fire the pointing device button down event.
/// </summary>
/// <param name="button">Button that's being pressed.</param>
protected void OnPointingDeviceDown(PointingDeviceButtons button)
{
ConstrainData();
Button |= button;
if (PointingDeviceDown == null)
{
return;
}
var e = new PointingDeviceEventArgs(button, Button, _position, _wheel, RelativePosition, WheelDelta, 0);
PointingDeviceDown(this, e);
}
/// <summary>
/// Function to fire the pointing device wheel move event.
/// </summary>
protected void OnPointingDeviceWheelMove(int newDelta)
{
if (newDelta != WheelDelta)
{
WheelDelta = newDelta;
Wheel += newDelta;
}
else
{
WheelDelta = 0;
return;
}
ConstrainData();
if (PointingDeviceWheelMove == null)
{
return;
}
var e = new PointingDeviceEventArgs(Button, PointingDeviceButtons.None, _position, _wheel, RelativePosition, WheelDelta, 0);
PointingDeviceWheelMove(this, e);
}
