public MainWindow()
{
InitializeMouseEventHandlers();
InitializeComponent();
EnableCanvasMouseEvents();
modeDescriptionLabel.Content = _modeDescriptionMap[_currentMode];
graph = new UndirectedWeightedGraph <string>();
_timer.Tick += (s, e) =>
{
graph.Tick();
};
_timer.Interval = new TimeSpan(0, 0, 0, 0, 10); // every 10ms
_timer.Start();
canvas.PreviewMouseDown += (s, e) =>
{
ResetAllStyles();
};
}