private void OnKeyDown(object sender, KeyboardKeyEventArgs e)
{
if (!Focused)
{
return;
}
if (TextBoxHandler.TextBox != null)
{
if (e.Control && e.Key == Key.Minus)
{
if (TextBoxHandler.TextBox == null)
{
return;
}
var connection = TextBoxHandler.EditingConnection;
connection.ParentNode.RemoveOutput(connection);
TextBoxHandler.Destroy(false);
connection.ParentNode.BuildConnections();
return;
}
TextBoxHandler.TextBox.OnKey(e);
return;
}
KeybindHandler.Consume(new KeyCombo(e));
}
private void OnMouseDown(object sender, MouseButtonEventArgs mouseButtonEventArgs)
{
switch (mouseButtonEventArgs.Button)
{
case MouseButton.Right:
CreateContextMenu(Graph.PickNode(_mouseCanvasSpace.X, _mouseCanvasSpace.Y), _mouseCanvasSpace.X,
_mouseCanvasSpace.Y);
_contextMenu.Visible = true;
break;
case MouseButton.Middle:
_draggingBackground = true;
break;
case MouseButton.Left:
var x = _mouseCanvasSpace.X;
var y = _mouseCanvasSpace.Y;
if (_contextMenu.Visible)
{
foreach (var menuItem in _contextMenu)
{
if (!menuItem.Pick(MouseScreenSpace.X, MouseScreenSpace.Y))
{
continue;
}
menuItem.Action.Invoke(menuItem);
_contextMenu.Visible = false;
if (Selection.CreatingConnectedNode)
{
Selection.CreatingConnectedNode = false;
Selection.DraggingConnection = null;
}
return;
}
Selection.CreatingConnectedNode = false;
Selection.DraggingConnection = null;
_contextMenu.Visible = false;
}
var clickedTextBox = TextBoxHandler.PickAndCreate(this, Graph, x, y);
if (clickedTextBox != null)
{
clickedTextBox.OnMouseDown(mouseButtonEventArgs);
return;
}
else
{
TextBoxHandler.Destroy();
}
var clickedConnection = Graph.PickConnection(x, y, _draggingConnectionPredicate);
if (clickedConnection != null)
{
Selection.Clear();
if (Keyboard[Key.ShiftLeft])
{
Graph.ClearConnectionsFrom(clickedConnection);
}
else
{
Selection.DraggingConnection = clickedConnection;
}
return;
}
var clickedNode = Graph.PickNode(x, y);
if (clickedNode != null)
{
if (!Selection.SelectedNodes.Contains(clickedNode))
{
Selection.Select(clickedNode);
}
Selection.IsDraggingNode = true;
_draggingNodeOffset.Clear();
foreach (var selectedNode in Selection.SelectedNodes)
{
_draggingNodeOffset.Add(selectedNode, new Vector2(x - selectedNode.X, y - selectedNode.Y));
}
return;
}
Selection.SelectionRectangle =
new Rectangle(_mouseCanvasSpace.X, _mouseCanvasSpace.Y, 0, 0);
break;
}
}