47#include "vtkCommonCoreModule.h"
53class vtkSubjectHelper;
69 void*
operator new(
size_t tSize);
70 void operator delete(
void* p);
187 template <
class U,
class T>
189 unsigned long event, U observer,
void (T::*callback)(),
float priority = 0.0f)
191 vtkClassMemberCallback<T>* callable =
new vtkClassMemberCallback<T>(observer, callback);
194 return this->AddTemplatedObserver(event, callable, priority);
196 template <
class U,
class T>
198 void (T::*callback)(
vtkObject*,
unsigned long,
void*),
float priority = 0.0f)
200 vtkClassMemberCallback<T>* callable =
new vtkClassMemberCallback<T>(observer, callback);
203 return this->AddTemplatedObserver(event, callable, priority);
212 template <
class U,
class T>
214 bool (T::*callback)(
vtkObject*,
unsigned long,
void*),
float priority = 0.0f)
216 vtkClassMemberCallback<T>* callable =
new vtkClassMemberCallback<T>(observer, callback);
219 return this->AddTemplatedObserver(event, callable, priority);
290 class vtkClassMemberCallbackBase
297 virtual bool operator()(
vtkObject*,
unsigned long,
void*) = 0;
298 virtual ~vtkClassMemberCallbackBase() =
default;
308 class vtkClassMemberHandlerPointer
315 if ((this->VoidPointer =
dynamic_cast<T*
>(o)) ==
nullptr)
318 this->VoidPointer = o;
320 this->WeakPointer = o;
321 this->UseWeakPointer =
true;
323 void operator=(
void* o)
325 this->VoidPointer = o;
326 this->WeakPointer =
nullptr;
327 this->UseWeakPointer =
false;
331 if (this->UseWeakPointer && !this->WeakPointer.GetPointer())
335 return static_cast<T*
>(this->VoidPointer);
339 vtkWeakPointerBase WeakPointer;
350 class vtkClassMemberCallback :
public vtkClassMemberCallbackBase
352 vtkClassMemberHandlerPointer<T> Handler;
353 void (T::*Method1)();
354 void (T::*Method2)(vtkObject*,
unsigned long,
void*);
355 bool (T::*Method3)(vtkObject*,
unsigned long,
void*);
358 vtkClassMemberCallback(T* handler,
void (T::*method)())
360 this->Handler = handler;
361 this->Method1 = method;
362 this->Method2 =
nullptr;
363 this->Method3 =
nullptr;
366 vtkClassMemberCallback(T* handler,
void (T::*method)(vtkObject*,
unsigned long,
void*))
368 this->Handler = handler;
369 this->Method1 =
nullptr;
370 this->Method2 = method;
371 this->Method3 =
nullptr;
374 vtkClassMemberCallback(T* handler,
bool (T::*method)(vtkObject*,
unsigned long,
void*))
376 this->Handler = handler;
377 this->Method1 =
nullptr;
378 this->Method2 =
nullptr;
379 this->Method3 = method;
381 ~vtkClassMemberCallback()
override =
default;
384 bool operator()(vtkObject* caller,
unsigned long event,
void* calldata)
override
386 T* handler = this->Handler.GetPointer();
391 (handler->*this->Method1)();
393 else if (this->Method2)
395 (handler->*this->Method2)(caller, event, calldata);
397 else if (this->Method3)
399 return (handler->*this->Method3)(caller, event, calldata);
419 unsigned long AddTemplatedObserver(
420 unsigned long event, vtkClassMemberCallbackBase* callable,
float priority);
superclass for callback/observer methods
a simple class to control print indentation
abstract base class for most VTK objects
virtual void ObjectFinalize()
void operator=(const vtkObjectBase &)
vtkBaseTypeMacro(vtkObject, vtkObjectBase)
void InternalReleaseFocus()
These methods allow a command to exclusively grab all events.
virtual void DebugOn()
Turn debugging output on.
vtkTypeBool HasObserver(unsigned long event)
friend class vtkObjectCommandInternal
Called by templated variants of AddObserver.
void PrintSelf(ostream &os, vtkIndent indent) override
Methods invoked by print to print information about the object including superclasses.
void RemoveObservers(const char *event)
vtkSubjectHelper * SubjectHelper
std::string GetObjectDescription() const override
The object description printed in messages and PrintSelf output.
unsigned long AddObserver(unsigned long event, U observer, bool(T::*callback)(vtkObject *, unsigned long, void *), float priority=0.0f)
Allow user to set the AbortFlagOn() with the return value of the callback method.
vtkTypeBool HasObserver(const char *event, vtkCommand *)
Allow people to add/remove/invoke observers (callbacks) to any VTK object.
virtual void DebugOff()
Turn debugging output off.
unsigned long AddObserver(unsigned long event, U observer, void(T::*callback)(vtkObject *, unsigned long, void *), float priority=0.0f)
Overloads to AddObserver that allow developers to add class member functions as callbacks for events.
void InternalGrabFocus(vtkCommand *mouseEvents, vtkCommand *keypressEvents=nullptr)
These methods allow a command to exclusively grab all events.
static void SetGlobalWarningDisplay(int val)
This is a global flag that controls whether any debug, warning or error messages are displayed.
void RemoveObserver(vtkCommand *)
Allow people to add/remove/invoke observers (callbacks) to any VTK object.
void RemoveObservers(unsigned long event, vtkCommand *)
Allow people to add/remove/invoke observers (callbacks) to any VTK object.
virtual std::string GetObjectName() const
Set/get the name of this object for reporting purposes.
int InvokeEvent(unsigned long event)
void UnRegisterInternal(vtkObjectBase *, vtkTypeBool check) override
void RemoveAllObservers()
void RegisterInternal(vtkObjectBase *, vtkTypeBool check) override
static void GlobalWarningDisplayOff()
This is a global flag that controls whether any debug, warning or error messages are displayed.
int InvokeEvent(const char *event, void *callData)
This method invokes an event and return whether the event was aborted or not.
virtual void Modified()
Update the modification time for this object.
vtkTypeBool HasObserver(unsigned long event, vtkCommand *)
Allow people to add/remove/invoke observers (callbacks) to any VTK object.
int InvokeEvent(unsigned long event, void *callData)
This method invokes an event and return whether the event was aborted or not.
static int GetGlobalWarningDisplay()
This is a global flag that controls whether any debug, warning or error messages are displayed.
unsigned long AddObserver(unsigned long event, vtkCommand *, float priority=0.0f)
Allow people to add/remove/invoke observers (callbacks) to any VTK object.
void RemoveObservers(const char *event, vtkCommand *)
Allow people to add/remove/invoke observers (callbacks) to any VTK object.
unsigned long AddObserver(const char *event, vtkCommand *, float priority=0.0f)
Allow people to add/remove/invoke observers (callbacks) to any VTK object.
static vtkObject * New()
Create an object with Debug turned off, modified time initialized to zero, and reference counting on.
void SetDebug(bool debugFlag)
Set the value of the debug flag.
vtkTypeBool HasObserver(const char *event)
static void BreakOnError()
This method is called when vtkErrorMacro executes.
static void GlobalWarningDisplayOn()
This is a global flag that controls whether any debug, warning or error messages are displayed.
bool GetDebug()
Get the value of the debug flag.
virtual vtkMTimeType GetMTime()
Return this object's modified time.
void RemoveObservers(unsigned long event)
int InvokeEvent(const char *event)
virtual void SetObjectName(const std::string &objectName)
Set/get the name of this object for reporting purposes.
void RemoveObserver(unsigned long tag)
unsigned long AddObserver(unsigned long event, U observer, void(T::*callback)(), float priority=0.0f)
Overloads to AddObserver that allow developers to add class member functions as callbacks for events.
vtkCommand * GetCommand(unsigned long tag)
Allow people to add/remove/invoke observers (callbacks) to any VTK object.
record modification and/or execution time
vtkTypeUInt32 vtkMTimeType