private void LinkToSource(CursorCoordinateGraph source, Orientation orientation)
{
switch (orientation)
{
case Orientation.Horizontal:
if (_linkedHorizontalSource != null)
{
_linkedHorizontalSource.VisibilityChanged -= UpdateVisibility;
_linkedHorizontalSource.PositionChanged -= UpdateUIRepresentation;
}
_linkedHorizontalSource = source;
if (_linkedHorizontalSource != null)
{
_linkedHorizontalSource.VisibilityChanged += UpdateVisibility;
_linkedHorizontalSource.PositionChanged += UpdateUIRepresentation;
}
break;
case Orientation.Vertical:
if (_linkedVerticalSource != null)
{
_linkedVerticalSource.VisibilityChanged -= UpdateVisibility;
_linkedVerticalSource.PositionChanged -= UpdateUIRepresentation;
}
_linkedVerticalSource = source;
if (_linkedVerticalSource != null)
{
_linkedVerticalSource.VisibilityChanged += UpdateVisibility;
_linkedVerticalSource.PositionChanged += UpdateUIRepresentation;
}
break;
}
}
private static void OnPositionChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
{
CursorCoordinateGraph graph = (CursorCoordinateGraph)d;
graph.UpdateUIRepresentation();
graph.PositionChanged?.Invoke(graph, EventArgs.Empty);
}
private static void UpdateUIRepresentation(DependencyObject d, DependencyPropertyChangedEventArgs e)
{
CursorCoordinateGraph graph = (CursorCoordinateGraph)d;
if ((bool)e.NewValue)
{
graph.UpdateUIRepresentation();
}
else
{
graph.vertLine.ClearValue(Line.StrokeDashOffsetProperty);
graph.horizLine.ClearValue(Line.StrokeDashOffsetProperty);
}
}
