public void RemoveSingleCanvasItem(CanvasItem item)
{
if (itemsList.Contains(itemsData[item]))
{
itemsList.Remove(itemsData[item]);
}
diagramRouter.RemoveItem(item);
}
public bool ContainsLink(CanvasItem from, CanvasItem to)
{
foreach (Route route in diagramRouter.Routes)
{
if (route.From == from && route.To == to)
{
return(true);
}
}
return(false);
}
/// <summary>
/// Retruns a copy of the the canvas items list as an array.
/// </summary>
public CanvasItem[] GetCanvasItems()
{
CanvasItem[] items = new CanvasItem[itemsList.Count];
int i = 0;
foreach (CanvasItemData item in itemsList)
{
items[i++] = item.Item;
}
return(items);
}
/// <summary>
/// Do not call it directly
/// </summary>
public void AddSingleCanvasItem(CanvasItem item)
{
diagramRouter.AddItem(item);
CanvasItemData itemData = new CanvasItemData(item, SizeGripMouseEntered, SizeGripMouseLeft);
itemsData[item] = itemData;
itemsList.Add(itemData);
item.RedrawNeeded += HandleRedraw;
item.LayoutChanged += HandleItemLayoutChange;
item.PositionChanging += HandleItemPositionChange;
item.SizeChanging += HandleItemSizeChange;
LayoutChanged(this, EventArgs.Empty);
}
public CanvasItemData(CanvasItem item,
EventHandler <SizeGripEventArgs> SizeGripMouseEntered,
EventHandler <SizeGripEventArgs> SizeGripMouseLeft)
{
this.item = item;
focusDecorator = new FocusDecorator(item);
sizeGripDecorator = new SizeGripDecorator(item);
sizeGripDecorator.SizeGripMouseEnter += SizeGripMouseEntered;
sizeGripDecorator.SizeGripMouseLeave += SizeGripMouseLeft;
item.AddDecorator(focusDecorator);
item.AddDecorator(sizeGripDecorator);
}
public void RemoveCanvasItem(CanvasItem item)
{
item.RemovedFromCanvas(this);
LayoutChanged(this, EventArgs.Empty);
}
public void AddCanvasItem(CanvasItem item)
{
item.AddToCanvas(this);
LayoutChanged(this, EventArgs.Empty);
}
