private void PaintField()
{
//DataContext нужен для работы привязки компонентов формы к текущему объекту
VisualEquation visualEquation;
if (!(DataContext is VisualEquation) || DataContext == null)
{
visualEquation = new VisualEquation(MainPaintField, 0, 0, 1, Equation);
DataContext = visualEquation;
}
else
{
visualEquation = (VisualEquation)DataContext;
visualEquation.PaintField();
visualEquation.DrawEquation();
}
}
public MainWindow()
{
InitializeComponent();
DataContext = null;
this.Loaded += WindowLoaded;
this.SizeChanged += WindowSizeChanged;
this.MinHeight = 350;
this.MouseWheel += (obj, arg) =>
{
if (DataContext is VisualEquation && DataContext != null)
{
VisualEquation equation = (VisualEquation)DataContext;
if (arg.Delta > 0)
{
equation.PaintStep++;
}
else if (arg.Delta < 0)
{
equation.PaintStep--;
}
}
};
}