//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
//事件触发机制。鼠标或键盘交互触发事件。这里触发PrintEvent()函数事件
//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
public void HookEvents()
{
vtkRenderWindowInteractor Interactor = renderWindowControl1.RenderWindow.GetInteractor();
this.HookErrorWindowEvents();
Interactor = this.renderWindowControl1.RenderWindow.GetInteractor();
this.InteractorHandler = new Kitware.VTK.vtkObject.vtkObjectEventHandler(Interactor_AnyEventHandler);
Interactor.AnyEvt += this.InteractorHandler;
// this.Interactor.PickEvt+=new Kitware.VTK.vtkObject.vtkObjectEventHandler(Interactor_AnyEventHandler);
// Give our own style a higher priority than the built-in one
// so that we see the events first:
//
float builtInPriority = Interactor.GetInteractorStyle().GetPriority();
this.UserStyle = Kitware.VTK.vtkInteractorStyleUser.New();
this.UserStyle.SetPriority(0.5f);
this.UserStyle.SetInteractor(Interactor);
this.UserHandler = new Kitware.VTK.vtkObject.vtkObjectEventHandler(UserStyle_MultipleEventHandler);
// Keyboard events:
this.UserStyle.KeyPressEvt += this.UserHandler;
this.UserStyle.CharEvt += this.UserHandler;
this.UserStyle.KeyReleaseEvt += this.UserHandler;
}
public void RemoveHandler(vtkObject.vtkObjectEventHandler handler)
{
this.EventImpl = (vtkObject.vtkObjectEventHandler)Delegate.Remove(this.EventImpl, handler);
if (null == this.EventImpl)
{
this.CallRemoveObserver();
}
}
public void AddHandler(vtkObject.vtkObjectEventHandler handler)
{
if (null == this.EventImpl)
{
this.CallAddObserver();
}
this.EventImpl = (vtkObject.vtkObjectEventHandler)Delegate.Combine(this.EventImpl, handler);
}
public void UnhookEvents()
{
vtkRenderWindowInteractor Interactor = renderWindowControl1.RenderWindow.GetInteractor();
this.UserStyle.KeyPressEvt -= this.UserHandler;
this.UserStyle.CharEvt -= this.UserHandler;
this.UserStyle.KeyReleaseEvt -= this.UserHandler;
Interactor.AnyEvt -= this.InteractorHandler;
this.UserHandler = null;
this.UserStyle = null;
this.InteractorHandler = null;
Interactor = null;
}
private void HookErrorWindowEvents()
{
if (null == this.ErrorWindow)
{
this.ErrorWindow = Kitware.VTK.vtkOutputWindow.GetInstance();
this.ErrorHandler = new Kitware.VTK.vtkObject.vtkObjectEventHandler(ErrorWindow_ErrorHandler);
this.ErrorWindow.ErrorEvt += this.ErrorHandler;
}
}
public void RemoveAllHandlers()
{
this.CallRemoveObserver();
this.EventImpl = null;
this.Sender = null;
}
