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Reference Guide
TRecorder Class Reference

Class provides direct recorder/replayer interface for a user.

See 'ROOT EVENT RECORDING SYSTEM' for more information about usage.

Implementation uses C++ design pattern State. Functionality of recorder is divided into 4 classes according to the current state of recorder.

Internally, there is a pointer to TRecorderState object. This object changes whenever state of recorder is changed. States of recorder are the following:

Every command for TRecorder is just passed to TRecordeState object. Depending on the current state of recorder, this command is passed to some of the above mentioned classes and if valid, handled there.

Switching between states is not possible from outside. States are switched directly by state objects via:

ChangeState(TRecorderState* newstate, Bool_t deletePreviousState);

When recorder is switched to a new state, the old state object is typically deleted. The only exception is switching from REPLAYING state to PAUSED state. The previous state (REPLAYING) is not deleted in order to be used again after TRecorder::Resume call.

STATE TRANSITIONS:

Definition at line 265 of file TRecorder.h.

Public Types

enum  ERecorderState { kInactive , kRecording , kPaused , kReplaying }
 
enum  EReplayModes { kRealtime }
 
- Public Types inherited from TObject
enum  {
  kIsOnHeap = 0x01000000 , kNotDeleted = 0x02000000 , kZombie = 0x04000000 , kInconsistent = 0x08000000 ,
  kBitMask = 0x00ffffff
}
 
enum  { kSingleKey = BIT(0) , kOverwrite = BIT(1) , kWriteDelete = BIT(2) }
 
enum  EDeprecatedStatusBits { kObjInCanvas = BIT(3) }
 
enum  EStatusBits {
  kCanDelete = BIT(0) , kMustCleanup = BIT(3) , kIsReferenced = BIT(4) , kHasUUID = BIT(5) ,
  kCannotPick = BIT(6) , kNoContextMenu = BIT(8) , kInvalidObject = BIT(13)
}
 

Public Member Functions

 TRecorder ()
 Creates initial INACTIVE state for the recorder. More...
 
 TRecorder (const char *filename, Option_t *option="READ")
 Creates a recorder with filename to replay or to record, depending on option (NEW or RECREATE will start recording, READ will start replaying) More...
 
virtual ~TRecorder ()
 Destructor. More...
 
void Browse (TBrowser *)
 Browse the recorder from a ROOT file. More...
 
virtual TRecorder::ERecorderState GetState () const
 Get current state of recorder. More...
 
void ListCmd (const char *filename)
 Prints out recorded commandline events. More...
 
void ListGui (const char *filename)
 Prints out recorded GUI events. More...
 
void Pause ()
 Pauses replaying. More...
 
void PrevCanvases (const char *filename, Option_t *option)
 Save previous canvases in a .root file. More...
 
void Replay ()
  More...
 
Bool_t Replay (const char *filename, Bool_t showMouseCursor=kTRUE, TRecorder::EReplayModes mode=kRealtime)
 Replays events from 'filename'. More...
 
void ReplayStop ()
 Cancels replaying. More...
 
void Resume ()
 Resumes replaying. More...
 
void Start (const char *filename, Option_t *option="RECREATE", Window_t *w=0, Int_t winCount=0)
 Starts recording events. More...
 
void Stop (Bool_t guiCommand=kFALSE)
 Stopps recording events. More...
 
- Public Member Functions inherited from TObject
 TObject ()
 TObject constructor. More...
 
 TObject (const TObject &object)
 TObject copy ctor. More...
 
virtual ~TObject ()
 TObject destructor. More...
 
void AbstractMethod (const char *method) const
 Use this method to implement an "abstract" method that you don't want to leave purely abstract. More...
 
virtual void AppendPad (Option_t *option="")
 Append graphics object to current pad. More...
 
ULong_t CheckedHash ()
 Check and record whether this class has a consistent Hash/RecursiveRemove setup (*) and then return the regular Hash value for this object. More...
 
virtual const char * ClassName () const
 Returns name of class to which the object belongs. More...
 
virtual void Clear (Option_t *="")
  More...
 
virtual TObjectClone (const char *newname="") const
 Make a clone of an object using the Streamer facility. More...
 
virtual Int_t Compare (const TObject *obj) const
 Compare abstract method. More...
 
virtual void Copy (TObject &object) const
 Copy this to obj. More...
 
virtual void Delete (Option_t *option="")
 Delete this object. More...
 
virtual Int_t DistancetoPrimitive (Int_t px, Int_t py)
 Computes distance from point (px,py) to the object. More...
 
virtual void Draw (Option_t *option="")
 Default Draw method for all objects. More...
 
virtual void DrawClass () const
 Draw class inheritance tree of the class to which this object belongs. More...
 
virtual TObjectDrawClone (Option_t *option="") const
 Draw a clone of this object in the current selected pad for instance with: gROOT->SetSelectedPad(gPad). More...
 
virtual void Dump () const
 Dump contents of object on stdout. More...
 
virtual void Error (const char *method, const char *msgfmt,...) const
 Issue error message. More...
 
virtual void Execute (const char *method, const char *params, Int_t *error=0)
 Execute method on this object with the given parameter string, e.g. More...
 
virtual void Execute (TMethod *method, TObjArray *params, Int_t *error=0)
 Execute method on this object with parameters stored in the TObjArray. More...
 
virtual void ExecuteEvent (Int_t event, Int_t px, Int_t py)
 Execute action corresponding to an event at (px,py). More...
 
virtual void Fatal (const char *method, const char *msgfmt,...) const
 Issue fatal error message. More...
 
virtual TObjectFindObject (const char *name) const
 Must be redefined in derived classes. More...
 
virtual TObjectFindObject (const TObject *obj) const
 Must be redefined in derived classes. More...
 
virtual Option_tGetDrawOption () const
 Get option used by the graphics system to draw this object. More...
 
virtual const char * GetIconName () const
 Returns mime type name of object. More...
 
virtual const char * GetName () const
 Returns name of object. More...
 
virtual char * GetObjectInfo (Int_t px, Int_t py) const
 Returns string containing info about the object at position (px,py). More...
 
virtual Option_tGetOption () const
  More...
 
virtual const char * GetTitle () const
 Returns title of object. More...
 
virtual UInt_t GetUniqueID () const
 Return the unique object id. More...
 
virtual Bool_t HandleTimer (TTimer *timer)
 Execute action in response of a timer timing out. More...
 
virtual ULong_t Hash () const
 Return hash value for this object. More...
 
Bool_t HasInconsistentHash () const
 Return true is the type of this object is known to have an inconsistent setup for Hash and RecursiveRemove (i.e. More...
 
virtual void Info (const char *method, const char *msgfmt,...) const
 Issue info message. More...
 
virtual Bool_t InheritsFrom (const char *classname) const
 Returns kTRUE if object inherits from class "classname". More...
 
virtual Bool_t InheritsFrom (const TClass *cl) const
 Returns kTRUE if object inherits from TClass cl. More...
 
virtual void Inspect () const
 Dump contents of this object in a graphics canvas. More...
 
void InvertBit (UInt_t f)
  More...
 
virtual Bool_t IsEqual (const TObject *obj) const
 Default equal comparison (objects are equal if they have the same address in memory). More...
 
virtual Bool_t IsFolder () const
 Returns kTRUE in case object contains browsable objects (like containers or lists of other objects). More...
 
R__ALWAYS_INLINE Bool_t IsOnHeap () const
  More...
 
virtual Bool_t IsSortable () const
  More...
 
R__ALWAYS_INLINE Bool_t IsZombie () const
  More...
 
virtual void ls (Option_t *option="") const
 The ls function lists the contents of a class on stdout. More...
 
void MayNotUse (const char *method) const
 Use this method to signal that a method (defined in a base class) may not be called in a derived class (in principle against good design since a child class should not provide less functionality than its parent, however, sometimes it is necessary). More...
 
virtual Bool_t Notify ()
 This method must be overridden to handle object notification. More...
 
void Obsolete (const char *method, const char *asOfVers, const char *removedFromVers) const
 Use this method to declare a method obsolete. More...
 
void operator delete (void *ptr)
 Operator delete. More...
 
void operator delete[] (void *ptr)
 Operator delete []. More...
 
voidoperator new (size_t sz)
  More...
 
voidoperator new (size_t sz, void *vp)
  More...
 
voidoperator new[] (size_t sz)
  More...
 
voidoperator new[] (size_t sz, void *vp)
  More...
 
TObjectoperator= (const TObject &rhs)
 TObject assignment operator. More...
 
virtual void Paint (Option_t *option="")
 This method must be overridden if a class wants to paint itself. More...
 
virtual void Pop ()
 Pop on object drawn in a pad to the top of the display list. More...
 
virtual void Print (Option_t *option="") const
 This method must be overridden when a class wants to print itself. More...
 
virtual Int_t Read (const char *name)
 Read contents of object with specified name from the current directory. More...
 
virtual void RecursiveRemove (TObject *obj)
 Recursively remove this object from a list. More...
 
void ResetBit (UInt_t f)
  More...
 
virtual void SaveAs (const char *filename="", Option_t *option="") const
 Save this object in the file specified by filename. More...
 
virtual void SavePrimitive (std::ostream &out, Option_t *option="")
 Save a primitive as a C++ statement(s) on output stream "out". More...
 
void SetBit (UInt_t f)
  More...
 
void SetBit (UInt_t f, Bool_t set)
 Set or unset the user status bits as specified in f. More...
 
virtual void SetDrawOption (Option_t *option="")
 Set drawing option for object. More...
 
virtual void SetUniqueID (UInt_t uid)
 Set the unique object id. More...
 
virtual void SysError (const char *method, const char *msgfmt,...) const
 Issue system error message. More...
 
R__ALWAYS_INLINE Bool_t TestBit (UInt_t f) const
  More...
 
Int_t TestBits (UInt_t f) const
  More...
 
virtual void UseCurrentStyle ()
 Set current style settings in this object This function is called when either TCanvas::UseCurrentStyle or TROOT::ForceStyle have been invoked. More...
 
virtual void Warning (const char *method, const char *msgfmt,...) const
 Issue warning message. More...
 
virtual Int_t Write (const char *name=0, Int_t option=0, Int_t bufsize=0)
 Write this object to the current directory. More...
 
virtual Int_t Write (const char *name=0, Int_t option=0, Int_t bufsize=0) const
 Write this object to the current directory. More...
 

Protected Member Functions

void ChangeState (TRecorderState *newstate, Bool_t deletePreviousState=kTRUE)
 Changes state from the current to the passed one (newstate) Deletes the old state if delPreviousState = KTRUE. More...
 
- Protected Member Functions inherited from TObject
virtual void DoError (int level, const char *location, const char *fmt, va_list va) const
 Interface to ErrorHandler (protected). More...
 
void MakeZombie ()
  More...
 

Protected Attributes

TString fFilename
  More...
 

Private Member Functions

 TRecorder (const TRecorder &)
 Current state of recorder. More...
 
TRecorderoperator= (const TRecorder &)
  More...
 

Private Attributes

TRecorderStatefRecorderState
  More...
 

Friends

class TRecorderInactive
  More...
 
class TRecorderPaused
  More...
 
class TRecorderRecording
  More...
 
class TRecorderReplaying
  More...
 
class TRecorderState
  More...
 

Additional Inherited Members

- Static Public Member Functions inherited from TObject
static Longptr_t GetDtorOnly ()
 Return destructor only flag. More...
 
static Bool_t GetObjectStat ()
 Get status of object stat flag. More...
 
static void SetDtorOnly (void *obj)
 Set destructor only flag. More...
 
static void SetObjectStat (Bool_t stat)
 Turn on/off tracking of objects in the TObjectTable. More...
 
- Protected Types inherited from TObject
enum  { kOnlyPrepStep = BIT(3) }
 

#include <TRecorder.h>

Inheritance diagram for TRecorder:
[legend]

Member Enumeration Documentation

◆ ERecorderState

Enumerator
kInactive 
kRecording 
kPaused 
kReplaying 

Definition at line 292 of file TRecorder.h.

◆ EReplayModes

Enumerator
kRealtime 

Definition at line 287 of file TRecorder.h.

Constructor & Destructor Documentation

◆ TRecorder() [1/3]

TRecorder::TRecorder ( const TRecorder )
private

Current state of recorder.

◆ TRecorder() [2/3]

TRecorder::TRecorder ( )

Creates initial INACTIVE state for the recorder.

Definition at line 179 of file TRecorder.cxx.

◆ TRecorder() [3/3]

TRecorder::TRecorder ( const char *  filename,
Option_t option = "READ" 
)

Creates a recorder with filename to replay or to record, depending on option (NEW or RECREATE will start recording, READ will start replaying)

Definition at line 190 of file TRecorder.cxx.

◆ ~TRecorder()

TRecorder::~TRecorder ( )
virtual

Destructor.

Definition at line 204 of file TRecorder.cxx.

Member Function Documentation

◆ Browse()

void TRecorder::Browse ( TBrowser )
virtual

Browse the recorder from a ROOT file.

This allows to replay a session from the browser.

Reimplemented from TObject.

Definition at line 213 of file TRecorder.cxx.

◆ ChangeState()

void TRecorder::ChangeState ( TRecorderState newstate,
Bool_t  deletePreviousState = kTRUE 
)
protected

Changes state from the current to the passed one (newstate) Deletes the old state if delPreviousState = KTRUE.

Definition at line 288 of file TRecorder.cxx.

◆ GetState()

TRecorder::ERecorderState TRecorder::GetState ( ) const
virtual

Get current state of recorder.

Definition at line 299 of file TRecorder.cxx.

◆ ListCmd()

void TRecorder::ListCmd ( const char *  filename)

Prints out recorded commandline events.

Definition at line 271 of file TRecorder.cxx.

◆ ListGui()

void TRecorder::ListGui ( const char *  filename)

Prints out recorded GUI events.

Definition at line 279 of file TRecorder.cxx.

◆ operator=()

TRecorder& TRecorder::operator= ( const TRecorder )
private

◆ Pause()

void TRecorder::Pause ( )

Pauses replaying.

Definition at line 247 of file TRecorder.cxx.

◆ PrevCanvases()

void TRecorder::PrevCanvases ( const char *  filename,
Option_t option 
)

Save previous canvases in a .root file.

Definition at line 308 of file TRecorder.cxx.

◆ Replay() [1/2]

void TRecorder::Replay ( )
inline

Definition at line 318 of file TRecorder.h.

◆ Replay() [2/2]

Bool_t TRecorder::Replay ( const char *  filename,
Bool_t  showMouseCursor = kTRUE,
TRecorder::EReplayModes  mode = kRealtime 
)

Replays events from 'filename'.

Definition at line 238 of file TRecorder.cxx.

◆ ReplayStop()

void TRecorder::ReplayStop ( )

Cancels replaying.

Definition at line 263 of file TRecorder.cxx.

◆ Resume()

void TRecorder::Resume ( )

Resumes replaying.

Definition at line 255 of file TRecorder.cxx.

◆ Start()

void TRecorder::Start ( const char *  filename,
Option_t option = "RECREATE",
Window_t w = 0,
Int_t  winCount = 0 
)

Starts recording events.

Definition at line 221 of file TRecorder.cxx.

◆ Stop()

void TRecorder::Stop ( Bool_t  guiCommand = kFALSE)

Stopps recording events.

Definition at line 230 of file TRecorder.cxx.

Friends And Related Function Documentation

◆ TRecorderInactive

friend class TRecorderInactive
friend

Definition at line 275 of file TRecorder.h.

◆ TRecorderPaused

friend class TRecorderPaused
friend

Definition at line 276 of file TRecorder.h.

◆ TRecorderRecording

friend class TRecorderRecording
friend

Definition at line 277 of file TRecorder.h.

◆ TRecorderReplaying

friend class TRecorderReplaying
friend

Definition at line 278 of file TRecorder.h.

◆ TRecorderState

friend class TRecorderState
friend

Definition at line 274 of file TRecorder.h.

Member Data Documentation

◆ fFilename

TString TRecorder::fFilename
protected

Definition at line 280 of file TRecorder.h.

◆ fRecorderState

TRecorderState* TRecorder::fRecorderState
private

Definition at line 268 of file TRecorder.h.

Libraries for TRecorder:
[legend]

The documentation for this class was generated from the following files: