/// <summary>
/// Start transition
/// </summary>
/// <param name="cmd">The transition direction</param>
public void Move(BackgroundImageCommand cmd)
{
if (!_inTransition)
{
_sourceImage = _backgroundPictureManagerBlock.Picture;
_targetImage = cmd == BackgroundImageCommand.NextImage
? _backgroundPictureManagerBlock.NextPicture
: _backgroundPictureManagerBlock.PreviousPicture;
_imageBorderLocation = 0;
_originalTransitionCommand = _currentTransitionCommand = cmd;
_dx = cmd == BackgroundImageCommand.NextImage ? -Pace : Pace;
_inTransition = true;
_timer.Enabled = true;
_timer.Start();
}
else
{
lock (this)
{
if (cmd == _currentTransitionCommand)
{
_dx *= 1.8;
}
else
{
_dx = -Math.Sign(_dx) * Pace;
}
_currentTransitionCommand = cmd;
}
}
}
/// <summary>
/// Called when a new gesture command is received
/// </summary>
/// <param name="command">The green command</param>
private void OnNewCommand(BackgroundImageCommand command)
{
//Check if we are already in the desire state
if (!_inTransition &&
(command == BackgroundImageCommand.ToGreenScreen && _inGreenOnlyState ||
command == BackgroundImageCommand.FromGreenScreen && _inImageOnlyState))
{
return;
}
//To or from green
_step = command == BackgroundImageCommand.ToGreenScreen ? Math.Abs(_step) : -Math.Abs(_step);
_inTransition = true;
_timer.Enabled = true;
_timer.Start();
}