private void CreateChildViews()
{
double y = 0.0;
Children.Clear();
if (_matrixViewModel?.ElementViewModelTree != null)
{
foreach (ElementTreeItemViewModel elementViewModel in _matrixViewModel.ElementViewModelTree)
{
Rect rect = GetCalculatedSize(elementViewModel, y);
MatrixRowHeaderItemView elementView = new MatrixRowHeaderItemView(_matrixViewModel, _theme)
{
Height = rect.Height,
Width = rect.Width
};
SetTop(elementView, rect.Top);
SetLeft(elementView, rect.Left);
elementView.DataContext = elementViewModel;
Children.Add(elementView);
CreateChildViews(elementViewModel, y);
y += rect.Height;
}
}
Height = y;
//Width = 5000; // Should be enough to draw very deep tree
}
private void RedrawChildViews()
{
foreach (var child in Children)
{
MatrixRowHeaderItemView renderedRowHeaderItemView = child as MatrixRowHeaderItemView;
renderedRowHeaderItemView?.Redraw();
}
}
private void CreateChildViews(ElementTreeItemViewModel elementViewModel, double y)
{
foreach (ElementTreeItemViewModel child in elementViewModel.Children)
{
Rect rect = GetCalculatedSize(child, y);
MatrixRowHeaderItemView elementView = new MatrixRowHeaderItemView(_matrixViewModel, _theme)
{
Height = rect.Height,
Width = rect.Width
};
SetTop(elementView, rect.Top);
SetLeft(elementView, rect.Left);
elementView.DataContext = child;
Children.Add(elementView);
CreateChildViews(child, y);
y += rect.Height;
}
}
private void OnMouseDown(object sender, MouseButtonEventArgs e)
{
MatrixRowHeaderItemView headerItemView = e.Source as MatrixRowHeaderItemView;
if (headerItemView != null)
{
Point pt = e.GetPosition(headerItemView);
if ((pt.X < 20) && (pt.Y < 24))
{
_matrixViewModel.ToggleElementExpandedCommand.Execute(null);
InvalidateVisual();
}
}
ElementTreeItemViewModel elementViewModel = GetElementViewModel(e.Source);
if (elementViewModel != null)
{
_matrixViewModel?.SelectTreeItem(elementViewModel);
}
}
private ElementTreeItemViewModel GetElementViewModel(object source)
{
MatrixRowHeaderItemView headerItemView = source as MatrixRowHeaderItemView;
return(headerItemView?.DataContext as ElementTreeItemViewModel);
}