private void UpdateMQTT(Grid parentGrid, TouchDevice touchDevice)
{
Point position = touchDevice.GetPosition(parentGrid);
Rect touchDeviceRect = touchDevice.GetBounds(this);
double?touchDeviceOrientation = touchDevice.GetOrientation(parentGrid);
var message = new MQTT_SUR40_Message
{
Id = touchDevice.Id,
Type = GetTouchDeviceTypeString(touchDevice),
X = Math.Round(position.X, 2),
Y = Math.Round(position.Y, 2),
Orientation = Math.Round(touchDeviceOrientation ?? 0.0, 2),
Width = Math.Round(touchDeviceRect.Width, 2),
Height = Math.Round(touchDeviceRect.Height, 2)
};
if (touchDevice.GetTagData() != TagData.None)
{
message.TagSchema = touchDevice.GetTagData().Schema.ToString("x8", CultureInfo.InvariantCulture);
message.TagSeries = touchDevice.GetTagData().Series.ToString("x16", CultureInfo.InvariantCulture);
message.TagExtendedValue = touchDevice.GetTagData().ExtendedValue.ToString("x16", CultureInfo.InvariantCulture);
message.TagValue = touchDevice.GetTagData().Value.ToString("x16", CultureInfo.InvariantCulture);
}
MQTTClient.Instance.PublishMessage(message);
}
/// <summary>
/// Update the bounding rectangle with the most recent touch device info. If a
/// rectangle has not been created yet, create one.
/// </summary>
/// <param name="touchDevice">the touch device to diagram</param>
/// <param name="showBoundingRectangle">Whether or not the rectangle should be shown</param>
private void UpdateRectangle(TouchDevice touchDevice, bool showBoundingRectangle)
{
// Create an rectangle if one does not exist already.
if (boundingRectangle == null)
{
// Make a new Rectangle
boundingRectangle = new Rectangle();
// Give the rectangle a fill.
boundingRectangle.Fill = new SolidColorBrush(Color.FromArgb(0xFF, 0xE6, 0xE6, 0xE6));
// Add the rectangle to the MainCanvas.
MainCanvas.Children.Add(boundingRectangle);
// Give the rectangle a lower ZIndex than everything else on the main canvas
// so it is not drawn on top of anything else
Canvas.SetZIndex(boundingRectangle, int.MinValue);
}
// Get the bounding rect for the touchDevice
Rect touchDeviceRect = touchDevice.GetBounds(this);
Rect bounds = new Rect(touchDeviceRect.X, touchDeviceRect.Y, touchDeviceRect.Width, touchDeviceRect.Height);
// Update the properties of boundingRectangle
boundingRectangle.Height = bounds.Height;
boundingRectangle.Width = bounds.Width;
Canvas.SetLeft(boundingRectangle, bounds.Left);
Canvas.SetTop(boundingRectangle, bounds.Top);
// Hide the rectangle if the user does not want to view bounding rectangles
boundingRectangle.Visibility = showBoundingRectangle ? Visibility.Visible : Visibility.Hidden;
}
