/// <summary>
/// Constructs a new view model for a virtual macro board.
/// </summary>
/// <param name="keyLayout"></param>
public VirtualBoardViewModel(IKeyPositionCollection keyLayout)
{
Keys = keyLayout ?? throw new ArgumentNullException(nameof(keyLayout));
KeyImages = new KeyImageCollection(Keys.Count);
dispatcher = Dispatcher.CurrentDispatcher;
}
/// <summary>
/// Spawns a new virtual macro board with a given <paramref name="keyLayout"/>.
/// </summary>
/// <param name="keyLayout"></param>
/// <returns></returns>
public static IMacroBoard SpawnVirtualBoard(IKeyPositionCollection keyLayout)
{
VirtualBoardViewModel boardViewModel = null;
VirtualBoardWindow boardWindow = null;
Exception exceptionWasThrown = null;
using (var waitForBoardWindow = new ManualResetEvent(false))
{
var uiThread = new Thread(() =>
{
try
{
boardViewModel = new VirtualBoardViewModel(keyLayout);
boardWindow = new VirtualBoardWindow(boardViewModel);
}
catch (Exception ex)
{
exceptionWasThrown = ex;
return;
}
finally
{
waitForBoardWindow.Set();
}
boardWindow.Show();
Dispatcher.Run();
})
{
IsBackground = true
};
uiThread.SetApartmentState(ApartmentState.STA);
uiThread.Start();
waitForBoardWindow.WaitOne();
if (exceptionWasThrown != null)
{
throw exceptionWasThrown;
}
return(boardViewModel);
}
}
public VirtualBoardLayout(IKeyPositionCollection keys, double width, double height)
{
var scaleX = width / keys.Area.Width;
var scaleY = height / keys.Area.Height;
var scale = Math.Min(scaleX, scaleY);
var offsetX = (width - keys.Area.Width * scale) / 2;
var offsetY = (height - keys.Area.Height * scale) / 2;
KeyPositions = new List <Rect>();
for (var i = 0; i < keys.Count; i++)
{
KeyPositions.Add(new Rect(
offsetX + keys[i].Left * scale,
offsetY + keys[i].Top * scale,
keys[i].Width * scale,
keys[i].Height * scale
));
}
}
