public void ShrinkAllWidths()
{
foreach (CanvasItemData item in itemsList)
{
NodeCanvasItem classitem = item.Item as NodeCanvasItem;
if (classitem != null)
{
classitem.Width = Math.Min(classitem.GetAbsoluteContentWidth(), 350);
}
}
LayoutChanged(this, EventArgs.Empty);
}
/// <summary>
/// создание объекта из передаваемого типа
/// </summary>
public static NodeCanvasItem CreateItemFromType(INode ct)
{
if (ct == null)
{
return(null);
}
NodeCanvasItem item = new NodeCanvasItem(ct, NodeLowDetails);
item.Initialize();
return(item);
}
/// <summary>
/// Returns an canvas node by its node name.
/// </summary>
public CanvasItem GetNodeCanvasItem(string nodeName)
{
foreach (CanvasItemData item in itemsList)
{
NodeCanvasItem node = item.Item as NodeCanvasItem;
if (node != null)
{
if (node.GetNodeData.Name.Equals(nodeName, StringComparison.OrdinalIgnoreCase))
{
return(node);
}
}
}
return(null);
}
public void ExpandAll(bool type)
{
foreach (CanvasItemData item in itemsList)
{
NodeCanvasItem classitem = item.Item as NodeCanvasItem;
if (classitem != null)
{
if (type)
{
classitem.ContentCollapseAll(false);
}
else
{
classitem.Collapsed = false;
}
}
}
LayoutChanged(this, EventArgs.Empty);
}
public void DrawToGraphics(Graphics graphics)
{
List <Route> routes;
List <NodeCanvasItem> itemFocused = new List <NodeCanvasItem>();
// отрисовываем ноды
foreach (CanvasItemData item in itemsList)
{
NodeCanvasItem node = item.Item as NodeCanvasItem;
if (node != null && item.Focused) // выбранные ноды отрисуем после соединяющих линий
{
itemFocused.Add(node);
}
else
{
item.Item.DrawToGraphics(graphics);
}
}
// отрисовываем соединяющие линии
DrawRoutes(graphics, itemFocused, out routes);
// отрисовать выбранные ноды поверх линий
foreach (NodeCanvasItem item in itemFocused)
{
item.DrawToGraphics(graphics);
}
// дорисовываем линии на ноде (для эстетики)
foreach (Route route in routes)
{
if (route.StartShape != null && ((NodeCanvasItem)route.From).Collapsed == false)
{
RouteStartShape shape = (RouteStartShape)route.StartShape;
shape = new RouteStartShape(Color.FromArgb(200, 255, 69, 0));
shape.Draw(graphics, route, false);
}
}
}
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;
}
