private static void OnItemsSourceChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
{
var items = e.NewValue as IEnumerable;
var pagedContainer = d as PagedWidgetContainer;
pagedContainer.MainGrid.Children.Clear();
pagedContainer.Pages.Clear();
var container = new WidgetContainer();
foreach (var item in items)
{
var itemContainer = new WidgetItemContainer();
itemContainer.DataContext = item;
itemContainer.ContentTemplate = pagedContainer.ItemTemplate;
itemContainer.Content = item;
container.Add_WidgetItemContainer(itemContainer);
}
pagedContainer.Pages.Add(new PageViewModel( container));
pagedContainer.MainGrid.Children.Add(container);
}
public PageViewModel(WidgetContainer container)
{
Container = container;
}
protected void Init()
{
LayoutRoot.DataContext = this;
Loaded += (sender, e) => OnLoaded();
SizeChanged += (sender, e) => Rearrange.Postpone();
MouseMove += (sender, e) => OnMouseMove(sender,e);
XUnit = 50;
YUnit = 50;
Rearrange.Action = () =>
{
var map = GetMap();
foreach (var container in Pages.Select(p => p.Container))
map.Add_New_Page(container);
var combos = Pages.Select(p => p.Container).SelectMany(c => c.Widgets.Select(w => new { c, w })).ToList();
foreach (var wc in combos)
{
var container = wc.c;
var widget = wc.w;
var spot = map.FindArea((int)widget.DMaxWidth(XUnit), (int)widget.DMaxHeight(YUnit));
if (spot == null)
{
var toBePlaced = new WidgetContainer();
Pages.Add(new PageViewModel(toBePlaced));
MainGrid.Children.Add(toBePlaced);
map.Add_New_Page(toBePlaced);
spot = map.FindArea((int)widget.DMaxWidth(XUnit), (int)widget.DMaxHeight(YUnit));
}
container.Remove_WidgetItemContainer(widget);
((WidgetContainer)spot.Page).Add_WidgetItemContainer(widget);
Canvas.SetTop(widget, spot.Y * YUnit);
Canvas.SetLeft(widget, spot.X * XUnit);
map.Set_MaxBusy(widget, XUnit, YUnit, spot.Page);
}
foreach (var page in Pages.Where(p=> !p.Container.Widgets.Any()).ToList())
Pages.Remove(page);
Pages.First().Container.Visibility = Visibility.Visible;
};
}
