/// <summary>
/// Este metodo es llamado cuando una conexion debe ser pintada.
/// </summary>
/// <param name="gr">Objeto Graphics utilizado para pintar.</param>
/// <param name="connection">La conexion que se quiere visualizar.</param>
protected virtual void DrawConnection(Graphics gr, Connection connection)
{
if (connection.To != null)
DrawFreeConnection(gr, connection, connection.To.Position, connection.To.Orientation);
}
/// <summary>
/// Permite agregar una nueva conexion al conjunto de conexiones de este elemento.
/// </summary>
/// <param name="outputPinIndex">Indice del pin de salida a partir del cual sale la conexion (varias conexiones pueden salir del mismo pin).</param>
/// <param name="label">Etiqueta de texto para la conexion.</param>
protected void AddConnection(int outputPinIndex, string label)
{
Connection newConnection = new Connection(ValidOutputs[outputPinIndex], null);
newConnection.Label = label;
_Connections.Add(newConnection);
}
/// <summary>
/// Este metodo se llama cuando se desea pintar una conexion que está "suelta" hasta un punto.
/// </summary>
/// <param name="gr">Objeto Graphics utilizado para pintar.</param>
/// <param name="connection">Conexion que se desea visualizar.</param>
/// <param name="freePoint">Punto de llegada de la conexion.</param>
/// <param name="orientation">Orientacion por la que se quiere llegar la linea. Digamos, que la linea llegue al punto final viniendo de arriba.</param>
protected internal virtual void DrawFreeConnection(Graphics gr, Connection connection, Point freePoint, PinOrientation orientation)
{
DrawDirectConnector(gr, connection.From.Position, freePoint, true);
}
/// <summary>
/// Accion que se produce cuando se selecciona una conexion.
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void item_Click(object sender, EventArgs e)
{
var item = sender as MenuItem;
// recuperar la conexion de la propiedad Tag.
var connection = item.Tag as Connection;
modifyingConnection = connection;
isConnecting = true;
}
/// <summary>
/// Metodo que se invoca cuando se presiona un boton del mouse.
/// </summary>
/// <param name="e"></param>
protected override void OnMouseDown(MouseEventArgs e)
{
lastMousePlace = FromClientToCanvas(e.Location);
ChartElement nextSelected = null;
foreach (ChartElement c in Charts)
if (c.Display.Contains(FromClientToCanvas(e.Location)))
nextSelected = c;
if (SelectedItem != null) SelectedItem.Selected = false;
SelectedItem = nextSelected;
if (SelectedItem != null) SelectedItem.Selected = true;
if (e.Button == MouseButtons.Right)
{
isConnecting = false;
modifyingConnection = null;
if (SelectedItem != null)
{
ContextMenu cm = GetContextMenuFor(SelectedItem);
ContextMenu = cm;
}
else
{
ContextMenu cm = GetGlobalContextMenu(FromClientToCanvas(e.Location));
ContextMenu = cm;
}
}
else
{
if (isConnecting)
{
Pin nearestInput = null;
if (SelectedItem != null)
foreach (Pin input in SelectedItem.ValidInputs)
if (nearestInput == null ||
Distance(input.Position, FromClientToCanvas(e.Location)) <
Distance(nearestInput.Position, FromClientToCanvas(e.Location)))
nearestInput = input;
modifyingConnection.To = nearestInput;
isConnecting = false;
modifyingConnection = null;
}
}
Invalidate();
base.OnMouseDown(e);
}
/// <summary>
/// Metodo que se invoca cuando se presiona un boton del mouse.
/// </summary>
/// <param name="e"></param>
protected override void OnMouseDown(MouseEventArgs e)
{
lastMousePlace = FromClientToCanvas (e.Location);
ChartElement nextSelected = null;
foreach (ChartElement c in Charts)
if (c.Display.Contains(FromClientToCanvas(e.Location)))
nextSelected = c;
if (SelectedItem != null) SelectedItem.Selected = false;
SelectedItem = nextSelected;
if (SelectedItem != null) SelectedItem.Selected = true;
if (e.Button == System.Windows.Forms.MouseButtons.Right)
{
isConnecting = false;
modifyingConnection = null;
if (SelectedItem != null)
{
ContextMenu cm = GetContextMenuFor(SelectedItem);
this.ContextMenu = cm;
}
else
{
ContextMenu cm = GetGlobalContextMenu(FromClientToCanvas(e.Location));
this.ContextMenu = cm;
}
}
else
{
if (isConnecting)
{
Pin nearestInput = null;
if (SelectedItem != null)
foreach (Pin input in SelectedItem.ValidInputs)
if (nearestInput == null || Distance(input.Position, FromClientToCanvas (e.Location)) < Distance(nearestInput.Position, FromClientToCanvas (e.Location)))
nearestInput = input;
var before = modifyingConnection.To;
modifyingConnection.To = nearestInput;
if(nearestInput!=null) //le pongo el padre
{
((BayesianNodeChartElement) nearestInput.ChartElement).Parents.Add((BayesianNodeChartElement)modifyingConnection.From.ChartElement);
((BayesianNodeChartElement) nearestInput.ChartElement).Condicional_Probabilities = null;
}
if (before != null )//le quito el antiguo padre
{
((BayesianNodeChartElement) before.ChartElement).Parents.Remove(
modifyingConnection.From.ChartElement as BayesianNodeChartElement);
((BayesianNodeChartElement) before.ChartElement).Condicional_Probabilities = null;
}
isConnecting = false;
modifyingConnection = null;
}
}
Invalidate();
base.OnMouseDown(e);
}