public void ReAddedCanvasItem(CanvasItem item)
{
item.ClearDecorator();
item.RedrawNeeded -= HandleRedraw;
item.LayoutChanged -= HandleItemLayoutChange;
item.PositionChanging -= HandleItemPositionChange;
item.SizeChanging -= HandleItemSizeChange;
AddCanvasItem(item);
}
/// <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);
}
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 SetFocusedCanvasItem(CanvasItem ci)
{
CanvasItemData value = null;
if (itemsData.TryGetValue(ci, out value))
{
LinkedListNode <CanvasItemData> itemNode = new LinkedListNode <CanvasItemData>(value);
SetItemFocus(itemNode);
ClearAllItemsFocus(itemNode);
if (itemsList.Last.Value != itemNode.Value)
{
itemsList.Remove(itemNode.Value);
itemsList.AddLast(itemNode.Value);
}
}
}
public void RemoveCanvasItem(CanvasItem item)
{
if (item == null)
{
return;
}
itemsList.Remove(itemsData[item]);
Stack <Route> routesToRemove = new Stack <Route>();
foreach (Route r in diagramRouter.Routes)
{
if (r.From == item || r.To == item)
{
routesToRemove.Push(r);
}
}
foreach (Route r in routesToRemove)
{
diagramRouter.RemoveRoute(r);
}
diagramRouter.RemoveItem(item);
NodeCanvasItem classItem = item as NodeCanvasItem;
if (classItem != null)
{
nodesToData.Remove(classItem.GetNodeData);
}
itemsData.Remove(item);
LayoutChanged(this, EventArgs.Empty);
}
/// <summary>
/// добавление новой ноды
/// </summary>
/// <param name="item"></param>
public void AddCanvasItem(CanvasItem item, CanvasItem itemAt = null)
{
NodeCanvasItem classItem = item as NodeCanvasItem;
if (classItem != null)
{
classItem.OffsetPointTo();
}
diagramRouter.AddItem(item);
CanvasItemData itemData = new CanvasItemData(item, SizeGripMouseEntered, SizeGripMouseLeft);
itemsData[item] = itemData;
if (classItem != null)
{
nodesToData.Add(classItem.GetNodeData, item);
foreach (CanvasItemData ci in itemsList)
{
NodeCanvasItem cci = ci.Item as NodeCanvasItem;
if (cci != null)
{
//Route r = null;
foreach (LinkTo link in cci.GetNodeData.LinkedToNodes)
{
if (link.NameTo == classItem.GetNodeData.Name)
{
// link: from >>> to
Route r = diagramRouter.AddRoute(cci, classItem, link.ContentLine);
r.EndShape = new RouteInheritanceShape();
r.StartShape = new RouteStartShape();
}
}
//if (r != null) {}
foreach (LinkTo link in classItem.GetNodeData.LinkedToNodes)
{
if (link.NameTo == cci.GetNodeData.Name)
{
// link: from >>> to
Route r = diagramRouter.AddRoute(classItem, cci, link.ContentLine);
r.EndShape = new RouteInheritanceShape();
r.StartShape = new RouteStartShape();
}
}
//if (r != null && r.EndShape == null) {}
}
}
}
// добавление ноды в лист
if (itemAt != null)
{
LinkedListNode <CanvasItemData> find = itemsList.Find(itemsData[itemAt]);
if (find != null)
{
itemsList.AddBefore(find, itemData);
}
else
{
itemsList.AddLast(itemData);
}
}
else
{
itemsList.AddLast(itemData);
}
item.RedrawNeeded += HandleRedraw;
item.LayoutChanged += HandleItemLayoutChange;
item.PositionChanging += HandleItemPositionChange;
item.SizeChanging += HandleItemSizeChange;
}
public CanvasItemEventArgs(CanvasItem canvasItem)
{
this.canvasItem = canvasItem;
}