private void UpdateNode(Node node, Network network)
{
try {
lock (network) {
if (debug)
{
Console.Out.WriteLine("*** Updating node {0} from network {1}.", node.NickName, network.NetworkName);
}
Hashtable node2nodegroup = network.Properties["node2nodegroup"] as Hashtable;
if (!node2nodegroup.ContainsKey(node))
{
throw new Exception("Unable to modify node: could not find the nodegroup which contains the specified node: " + node.NickName);
}
NodeGroup ng = node2nodegroup[node] as NodeGroup;
PointD position = ng.Position;
DeleteNode(node, network);
AddNode(node, network, position);
if (debug)
{
Console.Out.WriteLine("### Node update complete for node {0} from network {1}.", node.NickName, network.NetworkName);
}
}
} catch (Exception ex) {
OnError(ex);
}
}
public ZoomableNetworkMap()
{
noticeIcon = Gui.LoadIcon(24, "dialog-information");
rng = new Random();
networkZOrder = ArrayList.Synchronized(new ArrayList());
selectedGroup = null;
nodeDragging = false;
nodeDraggingLastX = 0;
nodeDraggingLastY = 0;
Runtime.Core.NetworkAdded += (NetworkEventHandler)DispatchService.GuiDispatch(new NetworkEventHandler(AddNetwork));
Runtime.Core.NetworkRemoved += (NetworkEventHandler)DispatchService.GuiDispatch(new NetworkEventHandler(DeleteNetwork));
foreach (Network network in Runtime.Core.Networks)
{
AddNetwork(network);
}
base.ButtonPressEvent += base_ButtonPressEvent;
base.ButtonReleaseEvent += base_ButtonReleaseEvent;
base.MotionNotifyEvent += base_MotionNotifyEvent;
this.render = DrawContents;
this.overlay = DrawOverlay;
this.QueueDraw();
}
private SizeD CalculateNodeGroupTitleTextSize(NodeGroup ng, Cairo.Context gc)
{
Pango.Layout layout = new Pango.Layout(this.PangoContext);
layout.FontDescription = this.PangoContext.FontDescription.Copy();
layout.FontDescription.Size = Pango.Units.FromDouble(NodegroupNameFontSize);
layout.SetText(ng.Name);
Gdk.Size size = GetTextSize(layout);
return(new SizeD(size.Width, size.Height));
}
private SizeD CalculateNodeGroupSize(NodeGroup ng, Cairo.Context gc)
{
var titleTextSize = CalculateNodeGroupTitleTextSize(ng, gc);
var titleTextHeight = titleTextSize.Height + (Padding * 2.0);
var heightNodeCount = (ng.Nodes.Count < 3) ? 1 : ng.Nodes.Count;
var width = Math.Max(titleTextSize.Width + (Padding * 2.0),
(ng.Nodes.Count * AvatarDimension) + (Padding * 2.0) + (Padding * ng.Nodes.Count));
var height = (heightNodeCount * AvatarDimension) + titleTextHeight + (Padding * 2.0) + (Padding * heightNodeCount);
return(new SizeD(width, height));
}
private void DeleteNode(Node node, Network network)
{
lock (network) {
if (debug)
{
Console.Out.WriteLine("*** Deleting node {0} from network {1}.", node.NickName, network.NetworkName);
}
Hashtable nodegroups = network.Properties["nodegroups"] as Hashtable;
Hashtable node2nodegroup = network.Properties["node2nodegroup"] as Hashtable;
//string nodeIP = (node.ExternalIP == string.Empty) ? node.NickName : node.ExternalIP;
if (!node2nodegroup.ContainsKey(node))
{
throw new Exception("Unable to delete node: could not find the nodegroup which contains the specified node: " + node.NickName);
}
NodeGroup ng = node2nodegroup[node] as NodeGroup;
if (debug)
{
Console.Out.WriteLine(" -> Found node {0} in nodegroup {1} / network {2}.", node.NickName, ng.Name, network.NetworkName);
}
ng.Nodes.Remove(node);
node2nodegroup.Remove(node);
if (debug)
{
Console.Out.WriteLine(" -> Deleted node {0} in nodegroup {1} / network {2}.", node.NickName, ng.Name, network.NetworkName);
}
// If nodegroup is empty, delete that too.
if (ng.Nodes.Count == 0)
{
if (debug)
{
Console.Out.WriteLine(" -> Nodegroup {0} / network {1} empty, deleting.", ng.Name, network.NetworkName);
}
nodegroups.Remove(ng.Name);
if (debug)
{
Console.Out.WriteLine(" -> Nodegroup {0} / network {1} deleted.", ng.Name, network.NetworkName);
}
}
}
}
private void AddNode(Node node, Network network, PointD position)
{
lock (network) {
if (debug)
{
Console.Out.WriteLine("*** Adding node {0} to network {1}...", node.NickName, network.NetworkName);
}
Hashtable nodegroups = network.Properties["nodegroups"] as Hashtable;
Hashtable node2nodegroup = network.Properties["node2nodegroup"] as Hashtable;
IPAddress address = GetExternalIPv4Address(node);
string nodeIP = (address.Equals(IPAddress.None)) ? node.NickName : address.ToString();
if (nodegroups.ContainsKey(nodeIP))
{
NodeGroup ng = nodegroups[nodeIP] as NodeGroup;
ng.Nodes.Add(node);
node2nodegroup.Add(node, ng);
if (debug)
{
Console.Out.WriteLine(" -> Added node {0} to network {1} / nodegroup {2}", node.NickName, network.NetworkName, ng.Name);
}
}
else
{
NodeGroup ng = new NodeGroup(nodeIP, position);
ng.Nodes.Add(node);
node2nodegroup.Add(node, ng);
nodegroups.Add(nodeIP, ng);
if (debug)
{
Console.Out.WriteLine(" -> Added node {0} to network {1} / new nodegroup {2}", node.NickName, network.NetworkName, ng.Name);
}
}
}
}
private void RenderNodeGroup(NodeGroup ng, Network network, Cairo.Context gc)
{
gc.Save();
SizeD size = CalculateNodeGroupSize(ng, gc);
ng.Dimension = size;
CreateRoundedRectPath(gc, ng.Position.X, ng.Position.Y, size.Width, size.Height, 20);
gc.Color = new Cairo.Color(0, 0, 0, 0.5);
gc.FillPreserve();
if (selectedGroup == ng)
{
gc.Save();
gc.Color = orangeOverlay;
gc.StrokePreserve();
gc.Restore();
}
var titleTextSize = CalculateNodeGroupTitleTextSize(ng, gc);
var titleSize = new SizeD(size.Width, titleTextSize.Height + (Padding * 2.0));
gc.Clip();
gc.Rectangle(ng.Position.X, ng.Position.Y, titleSize.Width, titleSize.Height);
gc.Fill();
gc.ResetClip();
gc.Color = lightGray;
double hostTextX = ng.Position.X + (titleSize.Width / 2.0) - (titleTextSize.Width / 2.0);
double hostTextY = ng.Position.Y + (titleSize.Height / 2.0) - (titleTextSize.Height / 2.0);
gc.MoveTo(hostTextX, hostTextY /* + titleTextSize.Height */);
Pango.Layout layout = new Pango.Layout(this.PangoContext);
layout.FontDescription = this.PangoContext.FontDescription.Copy();
layout.FontDescription.Size = Pango.Units.FromDouble(NodegroupNameFontSize);
layout.SetText(ng.Name);
Pango.CairoHelper.ShowLayout(gc, layout);
SizeD nodesSize = CalculateNodeGroupSize(ng, gc);
if (ng.Nodes.Count == 1)
{
double positionY = ng.Position.Y + titleSize.Height + Padding;
double positionX = ng.Position.X + (ng.Dimension.Width / 2.0) - HalfAvatarDimension;
RenderNode(gc, (Node)ng.Nodes[0], positionX, positionY);
}
else if (ng.Nodes.Count == 2)
{
// position them side-by-side, separated by (padding) number of pixels, centered in the
// space.
double positionY = ng.Position.Y + titleSize.Height + Padding;
double position1X = ng.Position.X + (ng.Dimension.Width / 2.0) - (Padding / 2.0) - AvatarDimension;
double position2X = position1X + Padding + AvatarDimension;
RenderNode(gc, (Node)ng.Nodes[0], position1X, positionY);
RenderNode(gc, (Node)ng.Nodes[1], position2X, positionY);
}
else
{
double deg = 0;
double x = 0;
double y = 0;
var contentY = ng.Position.Y + titleSize.Height;
var contentHeight = size.Height - titleSize.Height;
var middle = new System.Drawing.Point(Convert.ToInt32(ng.Position.X + size.Width - (size.Width / 2.0)),
Convert.ToInt32(contentY + contentHeight - (contentHeight / 2.0)));
int nodeSize = Convert.ToInt32(AvatarDimension);
for (int i = 0; i < ng.Nodes.Count; i++)
{
x = Math.Sin(deg) * ((size.Width / 2.0) - (nodeSize)) + middle.X - (nodeSize / 2.0);
y = Math.Cos(deg) * ((contentHeight / 2.0) - (nodeSize)) + middle.Y - (nodeSize / 2.0);
RenderNode(gc, (Node)ng.Nodes[i], x, y);
deg += Math.PI / (ng.Nodes.Count / 2.0);
}
}
gc.Restore();
}
private void base_ButtonPressEvent(object sender, Gtk.ButtonPressEventArgs args)
{
Gdk.EventButton eb = args.Event;
double mouseX = eb.X;
double mouseY = eb.Y;
DeviceToUser(ref mouseX, ref mouseY);
if (debug)
{
Console.Out.WriteLine("Button Pressed {0}: user coords {1},{2}", eb.Button, mouseX, mouseY);
}
PointD thePoint = new PointD(mouseX, mouseY);
NodeGroup firstNodeGroupHit = null;
Node firstNodeHit = null;
foreach (Network network in networkZOrder)
{
Rectangle networkRect = (Rectangle)network.Properties["rect"];
if (Inside(thePoint, networkRect))
{
if (debug)
{
Console.Out.WriteLine("Click inside network {0}", network.NetworkName);
}
Hashtable nodegroups = (Hashtable)network.Properties["nodegroups"];
foreach (NodeGroup ng in nodegroups.Values)
{
//PointD ngPosition = new PointD (ng.Position.X + networkRect.X,
// ng.Position.Y + networkRect.Y);
if (Inside(thePoint, ng.Position, ng.Dimension))
{
if (debug)
{
Console.Out.WriteLine("Click inside group {0}", ng.Name);
}
firstNodeGroupHit = ng;
foreach (Node n in ng.Nodes)
{
PointD np = (PointD)n.Properties["position"];
// np = new PointD (np.X + ngPosition.X,
// np.Y + ngPosition.Y);
if (Inside(thePoint, np, AvatarSizeD))
{
firstNodeHit = n;
if (debug)
{
Console.Out.WriteLine("Click inside node {0}", n);
}
break;
// clicked node n
}
}
break;
// click in ng but not any node
}
}
break;
// click in network but not any ng
}
}
if (eb.Button == 1 | eb.Button == 3)
{
selectedNode = firstNodeHit;
if (SelectedNodeChanged != null)
{
SelectedNodeChanged(selectedNode);
}
}
switch (eb.Button)
{
case 1:
selectedGroup = firstNodeGroupHit;
if (selectedGroup != null)
{
this.nodeDragging = true;
nodeDraggingLastX = eb.X;
nodeDraggingLastY = eb.Y;
// we're dragging...
this.GdkWindow.Cursor = new Gdk.Cursor(Gdk.CursorType.Plus);
}
if (selectedNode != null)
{
if (eb.Type == Gdk.EventType.TwoButtonPress)
{
ResetDrag();
if (NodeDoubleClicked != null)
{
NodeDoubleClicked(selectedNode);
}
}
}
break;
case 3:
if (firstNodeGroupHit == null)
{
// clicked on map background
Menu mapMenu = (Menu)Runtime.UIManager.GetWidget("/MapPopupMenu");
mapMenu.Popup();
}
else
{
if (firstNodeHit != null)
{
UserMenu userMenu = new UserMenu(firstNodeHit.Network, firstNodeHit);
userMenu.Popup();
}
}
break;
}
}