41 #include "vtkCommonCoreModule.h"
43 #include "vtkSetGet.h"
47 VTK_ABI_NAMESPACE_BEGIN
48 class vtkSubjectHelper;
64 void*
operator new(
size_t tSize);
65 void operator delete(
void* p);
182 template <
class U,
class T>
184 unsigned long event, U observer,
void (T::*callback)(),
float priority = 0.0f)
186 vtkClassMemberCallback<T>* callable =
new vtkClassMemberCallback<T>(observer, callback);
189 return this->AddTemplatedObserver(event, callable,
priority);
191 template <
class U,
class T>
195 vtkClassMemberCallback<T>* callable =
new vtkClassMemberCallback<T>(observer, callback);
198 return this->AddTemplatedObserver(event, callable,
priority);
207 template <
class U,
class T>
211 vtkClassMemberCallback<T>* callable =
new vtkClassMemberCallback<T>(observer, callback);
214 return this->AddTemplatedObserver(event, callable,
priority);
285 class vtkClassMemberCallbackBase
292 virtual bool operator()(
vtkObject*,
unsigned long,
void*) = 0;
293 virtual ~vtkClassMemberCallbackBase() =
default;
303 class vtkClassMemberHandlerPointer
310 if ((this->VoidPointer =
dynamic_cast<T*
>(o)) ==
nullptr)
313 this->VoidPointer = o;
315 this->WeakPointer = o;
316 this->UseWeakPointer =
true;
318 void operator=(
void* o)
320 this->VoidPointer = o;
321 this->WeakPointer =
nullptr;
322 this->UseWeakPointer =
false;
326 if (this->UseWeakPointer && !this->WeakPointer.GetPointer())
330 return static_cast<T*
>(this->VoidPointer);
345 class vtkClassMemberCallback :
public vtkClassMemberCallbackBase
347 vtkClassMemberHandlerPointer<T> Handler;
348 void (T::*Method1)();
349 void (T::*Method2)(
vtkObject*,
unsigned long,
void*);
350 bool (T::*Method3)(
vtkObject*,
unsigned long,
void*);
353 vtkClassMemberCallback(T* handler,
void (T::*method)())
355 this->Handler = handler;
356 this->Method1 = method;
357 this->Method2 =
nullptr;
358 this->Method3 =
nullptr;
361 vtkClassMemberCallback(T* handler,
void (T::*method)(
vtkObject*,
unsigned long,
void*))
363 this->Handler = handler;
364 this->Method1 =
nullptr;
365 this->Method2 = method;
366 this->Method3 =
nullptr;
369 vtkClassMemberCallback(T* handler,
bool (T::*method)(
vtkObject*,
unsigned long,
void*))
371 this->Handler = handler;
372 this->Method1 =
nullptr;
373 this->Method2 =
nullptr;
374 this->Method3 = method;
376 ~vtkClassMemberCallback()
override =
default;
379 bool operator()(
vtkObject* caller,
unsigned long event,
void* calldata)
override
381 T* handler = this->Handler.GetPointer();
386 (handler->*this->Method1)();
388 else if (this->Method2)
390 (handler->*this->Method2)(caller, event, calldata);
392 else if (this->Method3)
394 return (handler->*this->Method3)(caller, event, calldata);
414 unsigned long AddTemplatedObserver(
415 unsigned long event, vtkClassMemberCallbackBase* callable,
float priority);
417 friend class vtkObjectCommandInternal;
421 VTK_ABI_NAMESPACE_END
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 &)
abstract base class for most VTK objects
vtkBaseTypeMacro(vtkObject, vtkObjectBase)
void InternalReleaseFocus()
These methods allow a command to exclusively grab all events.
vtkCommand * GetCommand(unsigned long tag)
Allow people to add/remove/invoke observers (callbacks) to any VTK object.
virtual void DebugOn()
Turn debugging output on.
vtkTypeBool HasObserver(unsigned long event)
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.
static void SetGlobalWarningDisplay(vtkTypeBool val)
This is a global flag that controls whether any debug, warning or error messages are displayed.
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.
vtkTypeBool InvokeEvent(unsigned long event)
void InternalGrabFocus(vtkCommand *mouseEvents, vtkCommand *keypressEvents=nullptr)
These methods allow a command to exclusively grab all events.
static vtkObject * New()
Create an object with Debug turned off, modified time initialized to zero, and reference counting on.
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.
void UnRegisterInternal(vtkObjectBase *, vtkTypeBool check) override
void RemoveAllObservers()
void RegisterInternal(vtkObjectBase *, vtkTypeBool check) override
vtkTypeBool InvokeEvent(const char *event)
static void GlobalWarningDisplayOff()
This is a global flag that controls whether any debug, warning or error messages are displayed.
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.
vtkTypeBool InvokeEvent(unsigned long event, void *callData)
This method invokes an event and return whether the event was aborted or not.
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.
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)
virtual void SetObjectName(const std::string &objectName)
Set/get the name of this object for reporting purposes.
void RemoveObserver(unsigned long tag)
static vtkTypeBool GetGlobalWarningDisplay()
This is a global flag that controls whether any debug, warning or error messages are displayed.
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.
vtkTypeBool InvokeEvent(const char *event, void *callData)
This method invokes an event and return whether the event was aborted or not.
record modification and/or execution time
Non-templated superclass for vtkWeakPointer.
vtkTypeUInt32 vtkMTimeType