private void ButtonPressEventCb (object obj, ButtonPressEventArgs args)
{
_canvas.WindowToWorld(args.Event.X, args.Event.Y, out _pointer_x, out _pointer_y);
//this prevents bad behavior caused by double clicking and right or middle click
if (args.Event.Type == EventType.ButtonPress && args.Event.Button == 1)
{
//System.Console.WriteLine ("UMLCanvas> ButtonPressEventCb");
if (!_association && !_element_selected && !_selector.Empty)
{
//System.Console.WriteLine ("Current {0} Selected: {1}", _current_element, _element_selected);
if (_selector.FirstElement != null && !_selector.FirstElement.UMLControlPoint)
{
_selector.CleanSelection();
}
}
else if (_queueAction != null)
{
CreateNodeAction action = _queueAction as CreateNodeAction;
if (action != null)
{
action.Position.X = _pointer_x;
action.Position.Y = _pointer_y;
action.Execute ();
_element_selected = true;
}
else
{
System.Console.WriteLine ("Queued action is not a node action");
}
_queueAction = null;
}
if (!_element_selected)
{
System.Console.WriteLine ("Should start creating the rectangle!");
//this prevents bad behavior when window is resized
_selector.StartSelection (_pointer_x, _pointer_y);
}
_element_selected = false;
_association = false;
}
else if (args.Event.Button == 3)
{
MakeMenu ();
}
}
internal void StartActionExecution (ActionBase action)
{
CreateNodeAction createNode;
CreateEdgeAction createEdge;
if ((createNode = action as CreateNodeAction) != null)
{
createNode.Position.X = _pointer_x;
createNode.Position.Y = _pointer_y;
createNode.Execute ();
}
else if ((createEdge = action as CreateEdgeAction) != null)
{
_currentAction = createEdge;
_association = true;
_association_start = GetHoverElement (null);
}
}