/// <summary>
/// Ensures that the parent is corret and that the child is not child of another container anymore.
/// </summary>
/// <param name="child"></param>
protected void EnsureParent(IGuiElement child)
{
if (child.GetParent() != null)
{
child.GetParent().RemoveChild(child);
}
child.SetParent(this);
}
public void Grab()
{
var layout = _guiElement.GetLayout();
// create the container where we will move the draggable inside and where we create highlight for drop targets
DragAndDropStage = new Canvas();
_guiElement.GetStage().AddChild(DragAndDropStage);
// replace the guiElement with a spacer while it is draggeed
Replacer = new Spacer(layout.GetCalculatedWidth(), layout.GetCalculatedHeight());
_guiElement.GetParent().ReplaceChild(_guiElement, Replacer);
OriginalPosition = new Vector2(layout.X, layout.Y);
var absoluteGeometry = _guiElement.GetLayoutProcessingData().AbsoluteGeometry;
layout.X = absoluteGeometry.X;
layout.Y = absoluteGeometry.Y;
// add the draggable on to the DragAndDropStage
DragAndDropStage.AddChild(_guiElement);
MousePosInComponent = new Point(
GuiStage.MousePosition.X - layout.X,
GuiStage.MousePosition.Y - layout.Y
);
}
public static string GetGuiElementPath(IGuiElement element)
{
var path = "";
while (element != null)
{
path = element.GetType().Name + (path == "" ? "" : "." + path);
element = element.GetParent();
}
return(path);
}
public void Dispatch(string eventName, IEvent e = null)
{
// setup the event
if (e == null)
{
e = new Event {
Target = _component
};
}
e.CurrentTarget = _component;
if (Events.ContainsKey(eventName))
{
// todo: get all listeners and do them one by one. Watch if the event was stopped.
Events[eventName].Dispatch(e);
}
// if the event was not stopped let it bubble
if (_component.GetParent() != null && !e.IsStopped)
{
_component.GetParent().Dispatch(eventName, e);
}
}