public void TryAndCopy()
{
if (SelectedNodes.Count > 0)
{
List <string> nodes = new List <string>();
foreach (UINode n in SelectedNodes)
{
nodes.Add(n.Node.GetJson());
}
GraphCopyData cd = new GraphCopyData()
{
nodes = nodes,
};
//copy to clipboard
Clipboard.SetText(JsonConvert.SerializeObject(cd));
}
}
public void TryAndPaste()
{
try
{
if (Graph.ReadOnly)
{
return;
}
Point mp = Mouse.GetPosition(ViewPort);
mp.X = Math.Max(0, mp.X);
mp.Y = Math.Max(0, mp.Y);
mp.X = mp.X > ViewPort.ActualWidth ? 0 : mp.X;
mp.Y = mp.Y > ViewPort.ActualHeight ? 0 : mp.Y;
ToWorld(ref mp);
string data = Clipboard.GetText();
if (string.IsNullOrEmpty(data))
{
return;
}
GraphCopyData cd = JsonConvert.DeserializeObject <GraphCopyData>(data);
if (cd.nodes == null || cd.nodes.Count == 0)
{
return;
}
List <UINode> added = new List <UINode>();
Dictionary <string, string> jsonContent = new Dictionary <string, string>();
Dictionary <string, Node> realLookup = new Dictionary <string, Node>();
for (int i = 0; i < cd.nodes.Count; i++)
{
string json = cd.nodes[i];
var unode = AddNodeFromJson(json, realLookup);
if (unode != null)
{
added.Add(unode);
jsonContent[unode.Node.Id] = json;
}
}
double minX = float.MaxValue;
double minY = float.MaxValue;
//apply copied data to new nodes
foreach (UINode n in added)
{
string json = null;
if (jsonContent.TryGetValue(n.Node.Id, out json))
{
n.Node.FromJson(realLookup, json);
if (minX > n.Node.ViewOriginX)
{
minX = n.Node.ViewOriginX;
}
if (minY > n.Node.ViewOriginY)
{
minY = n.Node.ViewOriginY;
}
}
}
//offset nodes origin by mouse point position
foreach (UINode n in added)
{
double dx = n.Node.ViewOriginX - minX;
double dy = n.Node.ViewOriginY - minY;
n.OffsetTo(mp.X + dx, mp.Y + dy);
}
Task.Delay(250).ContinueWith((Task t) =>
{
App.Current.Dispatcher.Invoke(() =>
{
foreach (UINode n in added)
{
//finally load visual connections
n.LoadConnections(lookup);
}
if (added.Count > 0)
{
Modified = true;
}
});
});
}
catch (Exception ex)
{
Console.WriteLine(ex.StackTrace);
}
}