53#include "vtkCommonCoreModule.h"
59class vtkSubjectHelper;
75 void*
operator new(
size_t tSize);
76 void operator delete(
void* p);
193 template <
class U,
class T>
195 unsigned long event, U observer,
void (T::*callback)(),
float priority = 0.0f)
197 vtkClassMemberCallback<T>* callable =
new vtkClassMemberCallback<T>(observer, callback);
200 return this->AddTemplatedObserver(event, callable, priority);
202 template <
class U,
class T>
204 void (T::*callback)(
vtkObject*,
unsigned long,
void*),
float priority = 0.0f)
206 vtkClassMemberCallback<T>* callable =
new vtkClassMemberCallback<T>(observer, callback);
209 return this->AddTemplatedObserver(event, callable, priority);
218 template <
class U,
class T>
220 bool (T::*callback)(
vtkObject*,
unsigned long,
void*),
float priority = 0.0f)
222 vtkClassMemberCallback<T>* callable =
new vtkClassMemberCallback<T>(observer, callback);
225 return this->AddTemplatedObserver(event, callable, priority);
296 class vtkClassMemberCallbackBase
303 virtual bool operator()(
vtkObject*,
unsigned long,
void*) = 0;
304 virtual ~vtkClassMemberCallbackBase() =
default;
314 class vtkClassMemberHandlerPointer
321 if ((this->VoidPointer =
dynamic_cast<T*
>(o)) ==
nullptr)
324 this->VoidPointer = o;
326 this->WeakPointer = o;
327 this->UseWeakPointer =
true;
329 void operator=(
void* o)
331 this->VoidPointer = o;
332 this->WeakPointer =
nullptr;
333 this->UseWeakPointer =
false;
337 if (this->UseWeakPointer && !this->WeakPointer.GetPointer())
341 return static_cast<T*
>(this->VoidPointer);
356 class vtkClassMemberCallback :
public vtkClassMemberCallbackBase
358 vtkClassMemberHandlerPointer<T> Handler;
359 void (T::*Method1)();
360 void (T::*Method2)(
vtkObject*,
unsigned long,
void*);
361 bool (T::*Method3)(
vtkObject*,
unsigned long,
void*);
364 vtkClassMemberCallback(T* handler,
void (T::*method)())
366 this->Handler = handler;
367 this->Method1 = method;
368 this->Method2 =
nullptr;
369 this->Method3 =
nullptr;
372 vtkClassMemberCallback(T* handler,
void (T::*method)(
vtkObject*,
unsigned long,
void*))
374 this->Handler = handler;
375 this->Method1 =
nullptr;
376 this->Method2 = method;
377 this->Method3 =
nullptr;
380 vtkClassMemberCallback(T* handler,
bool (T::*method)(
vtkObject*,
unsigned long,
void*))
382 this->Handler = handler;
383 this->Method1 =
nullptr;
384 this->Method2 =
nullptr;
385 this->Method3 = method;
387 ~vtkClassMemberCallback()
override =
default;
390 bool operator()(
vtkObject* caller,
unsigned long event,
void* calldata)
override
392 T* handler = this->Handler.GetPointer();
397 (handler->*this->Method1)();
399 else if (this->Method2)
401 (handler->*this->Method2)(caller, event, calldata);
403 else if (this->Method3)
405 return (handler->*this->Method3)(caller, event, calldata);
425 unsigned long AddTemplatedObserver(
426 unsigned long event, vtkClassMemberCallbackBase* callable,
float priority);
428 friend class vtkObjectCommandInternal;
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.
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.
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
Non-templated superclass for vtkWeakPointer.
vtkTypeUInt32 vtkMTimeType