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TRecorder.h
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TRecorder.h
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// @(#)root/gui:$Id$
// Author: Katerina Opocenska 11/09/2008
/*************************************************************************
* Copyright (C) 1995-2008, Rene Brun and Fons Rademakers. *
* All rights reserved. *
* *
* For the licensing terms see $ROOTSYS/LICENSE. *
* For the list of contributors see $ROOTSYS/README/CREDITS. *
*************************************************************************/
#ifndef ROOT_TRecorder
#define ROOT_TRecorder
//////////////////////////////////////////////////////////////////////////
// //
// ROOT EVENT RECORDING SYSTEM //
// ================================================================== //
// //
// TRecorder class provides interface for recording and replaying //
// events in ROOT. //
// Recorded events are: //
// - Commands typed by user in commandline ('new TCanvas') //
// - GUI events (mouse movement, button clicks, ...) //
// //
// All the recorded events from one session are stored in one TFile //
// and can be replayed again anytime. //
// //
// Recording //
// ================================================================== //
// //
// 1] To start recording //
// //
// TRecorder r(const char *filename, "NEW") //
// TRecorder r(const char *filename, "RECREATE") //
// //
// or: //
// //
// TRecorder *recorder = new TRecorder; //
// recorder->Start(const char *filename, ...) //
// //
// -filename Name of ROOT file in which to save //
// recorded events. //
// //
// 2] To stop recording //
// //
// recorder->Stop() //
// //
// //
// IMPORTANT: //
// State capturing is part of recording. It means that if you want to //
// record events for some object (window), creation of this object //
// must be also recorded. //
// //
// Example: //
// -------- //
// t = new TRecorder(); // Create a new recorder //
// t->Start("logfile.root"); // ! Start recording first //
// //
// c = new TCanvas(); // ! Then, create an object //
// c->Dump(); // Work with that object //
// //
// t->Stop(); // Stop recording //
// //
// It is strongly recommended to start recording with empty ROOT //
// environment, at least with no previously created ROOT GUI. //
// This ensures that only events for well known windows are stored. //
// Events for windows, which were not created during recording, //
// cannot be replayed. //
// //
// Replaying //
// =================================================================== //
// //
// 1] To start replaying //
// //
// TRecorder r(const char *filename) //
// TRecorder r(const char *filename, "READ") //
// //
// or: //
// //
// TRecorder *recorder = new TRecorder; //
// recorder->Replay(const char *filename, //
// Bool_t showMouseCursor = kTRUE); //
// //
// -filename A name of file with recorded events //
// previously created with TRecorder::Start //
// //
// -showMouseCursor If kTRUE, mouse cursor is replayed as well. //
// In that case it is not recommended to use mouse //
// during replaying. //
// //
// In general, it is not recommended to use mouse to change positions //
// and states of ROOT windows during replaying. //
// //
// IMPORTANT: //
// The state of ROOT environment before replaying of some events //
// must be exactly the same as before recording them. //
// Therefore it is strongly recommended to start both recording //
// and replaying with empty ROOT environment. //
// //
// 2] To pause replaying //
// //
// recorder->Pause() //
// //
// Replaying is stopped until recorder->Resume() is called. //
// //
// //
// 3] To resume paused replaying //
// //
// recorder->Resume() //
// //
// Resumes previously stopped replaying. //
// //
// //
// 4] To stop replaying before its end //
// //
// recorder->Stop() //
// //
//////////////////////////////////////////////////////////////////////////
#include "Riostream.h"
#include "TApplication.h"
#include "TError.h"
#include "TTimer.h"
#include "TGClient.h"
#include "TGFrame.h"
#include "TCanvas.h"
#include "THashList.h"
#include <time.h>
class TMutex;
class TTree;
class TFile;
class TGPictureButton;
class TGCheckButton;
class TGLabel;
class TRecorderState;
//////////////////////////////////////////////////////////////////////////
// //
// TRecEvent //
// //
// Abstract class that defines interface for a class storing //
// information about 1 ROOT event. //
// Time of event is stored and this event can be replayed. //
// Classes TRecCmdEvent and TRecGuiEvent implements this interface //
// for command line and GUI events respectively. //
// //
//////////////////////////////////////////////////////////////////////////
class TRecEvent : public TObject
{
private:
TTime fEventTime; // Time of original event execution
public:
//---- Types of events recorded in ROOT.
enum ERecEventType {
kCmdEvent, // Commandline event
kGuiEvent, // GUI event
kExtraEvent
};
// Replays (executes) the stored event again
virtual void ReplayEvent(Bool_t showMouseCursor = kTRUE) = 0;
// Returns what kind of event it stores
virtual ERecEventType GetType() const = 0;
virtual TTime GetTime() const {
// Returns time of original execution of stored event
return fEventTime;
}
virtual void SetTime(TTime t) {
// Sets time of event execution
fEventTime = t;
}
ClassDef(TRecEvent,1) // Abstract class. Defines basic interface for storing information about ROOT events
};
//////////////////////////////////////////////////////////////////////////
// //
// TRecCmdEvent //
// //
// Class used for storing information about 1 commandline event. //
// It means 1 command typed in by user in the commandline, //
// e.g 'new TCanvas'. //
// //
//////////////////////////////////////////////////////////////////////////
class TRecCmdEvent : public TRecEvent
{
private:
TString fText; // Text of stored command
public:
TRecCmdEvent() {
// Creates new empty TRecCmdEvent
}
void SetText(const char *text) {
// Saves text of a command
fText = text;
}
const char *GetText() const {
// Returns stored text of the command
return fText.Data();
}
virtual ERecEventType GetType() const {
// Returns what kind of event it stores (commandline event)
return TRecEvent::kCmdEvent;
}
virtual void ReplayEvent(Bool_t) {
// Stored command is executed again
std::cout << GetText() << std::endl;
gApplication->ProcessLine(GetText());
}
ClassDef(TRecCmdEvent,1) // Class stores information about 1 commandline event (= 1 command typed by user in commandline)
};
//////////////////////////////////////////////////////////////////////////
// //
// TRecExtraEvent //
// //
// Class used for storing information about 1 extra event. //
// It means 1 TPaveLabel or 1 TLatex event produced in the Canvas //
// //
//////////////////////////////////////////////////////////////////////////
class TRecExtraEvent : public TRecEvent
{
private:
TString fText; // Text of stored command
public:
TRecExtraEvent() {
// Creates new empty TRecExtraEvent
}
void SetText(TString text) {
// Saves text of a command (PaveLabel or Text)
fText = text;
}
TString GetText() const {
// Returns stored text of the command
return fText;
}
virtual ERecEventType GetType() const {
// Returns what kind of event it stores (Especial event)
return TRecEvent::kExtraEvent;
}
virtual void ReplayEvent(Bool_t) {
// Stored event is executed again
gApplication->ProcessLine(GetText());
}
ClassDef(TRecExtraEvent,1) // Class stores information about extra events
};
//////////////////////////////////////////////////////////////////////////
// //
// TRecGuiEvent //
// //
// Class used for storing information about 1 GUI event in ROOT. //
// For list of possible GUI events see EGEventType. //
// //
//////////////////////////////////////////////////////////////////////////
class TRecGuiEvent : public TRecEvent
{
protected:
friend class TRecorderInactive;
friend class TRecorderPaused;
friend class TRecorderRecording;
friend class TRecorderReplaying;
EGEventType fType; // Type of event (see EGEventType)
Window_t fWindow; // Window ID which reported event is relative to
Time_t fTime; // Time event occured in ms
Int_t fX; // Pointer x coordinate in event window
Int_t fY; // Pointer y coordinate in event window
Int_t fXRoot; // x coordinate relative to root
Int_t fYRoot; // y coordinate relative to root
UInt_t fCode; // Key or button code
UInt_t fState; // Key or button mask
UInt_t fWidth; // Width of exposed area
UInt_t fHeight; // Height of exposed area
Int_t fCount; // If non-zero, at least this many more exposes
Bool_t fSendEvent; // True if event came from SendEvent
Handle_t fHandle; // General resource handle (used for atoms or windows)
Int_t fFormat; // Next fields only used by kClientMessageEvent
Long_t fUser[5]; // 5 longs can be used by client message events
// NOTE: only [0], [1] and [2] may be used.
// [1] and [2] may contain > 32 bit quantities
// (i.e. pointers on 64 bit machines)
Window_t fMasked; // If non-zero, event recorded in HandleMaskEvent()
public:
//---- Types of kConfigureNotify GUI event
enum EConfigureNotifyType {
kCNMove = 0, // Movement of a window (Linux)
kCNResize = 1, // Resize of a window (Linux)
kCNMoveResize = 2, // Movement, resize or both (Windows)
kCNFilter = 3 // Not replaybale (filtered event).
};
//---- Aliases for non cross-platform atoms.
enum ERootAtoms {
kWM_DELETE_WINDOW = 10001,
kROOT_MESSAGE = 10002
};
virtual ERecEventType GetType() const {
// Returns what kind of event it stores (GUI event)
return TRecEvent::kGuiEvent;
}
virtual void ReplayEvent(Bool_t showMouseCursor = kTRUE);
static Event_t *CreateEvent(TRecGuiEvent *ge);
ClassDef(TRecGuiEvent,1) // Class stores information about 1 GUI event in ROOT
};
//////////////////////////////////////////////////////////////////////////
// //
// TRecWinPair //
// //
// Class used for storing of window IDs mapping. //
// Remapping of window IDs is needed for replaying events. //
// - ID of original window is stored in fKey. //
// - ID of a new window is stored in fValue. //
// //
// Whenever an event is replayed, its referenced window ID is changed //
// from original to a new one according to the appropriate mapping. //
// //
//////////////////////////////////////////////////////////////////////////
class TRecWinPair : public TObject
{
protected:
friend class TRecorderReplaying;
Window_t fKey; // ID of original window (for which an event was originally recorded)
Window_t fValue; // ID of a new window (for which an event is being replayed)
public:
// Creates a new key-value mapping of window IDs
TRecWinPair(Window_t key, Window_t value): fKey(key), fValue(value) {}
ClassDef(TRecWinPair,1) // Class used for storing of window IDs mapping. Needed for replaying events.
};
//////////////////////////////////////////////////////////////////////////
// //
// TRecorder //
// //
// 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: //
// //
// - INACTIVE Implemented in TRecorderInactive class. //
// Default state after TRecorder object is created. //
// //
// - RECORDING Implemented in TRecorderRecording class. //
// //
// - REPLAYING Implemented in TRecorderReplaying class. //
// //
// - PAUSED Implemented in TRecorderPause class. //
// Pause of replaying. //
// //
// 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. //
// //
// [TRecorder.JPG] //
// //
// 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: //
// ------------------ //
// //
// INACTIVE -> RECORDING via TRecorder::Start (Starts recording) //
// RECORDING -> INACTIVE via TRecorder::Stop (Stops recording) //
// //
// INACTIVE -> REPLAYING via TRecorder::Replay (Starts replaying) //
// REPLAYING -> INACTIVE via TRecorder::ReplayStop (Stops replaying) //
// //
// REPLAYING -> PAUSED via TRecorder::Pause (Pause replaying) //
// PAUSED -> REPLAYING via TRecorder::Resume (Resumes replaying) //
// //
// PAUSED -> INACTIVE via TRecorder::ReplayStop (Stops paused //
// replaying) //
// //
// [TRecorderStates.JPG] //
// //
//////////////////////////////////////////////////////////////////////////
class TRecorder : public TObject
{
private:
TRecorderState *fRecorderState; //! Current state of recorder
TRecorder(const TRecorder&); // Not implemented.
TRecorder &operator=(const TRecorder&); // Not implemented.
protected:
friend class TRecorderState;
friend class TRecorderInactive;
friend class TRecorderPaused;
friend class TRecorderRecording;
friend class TRecorderReplaying;
TString fFilename; // Events file name
// Changes state to the new one.
// See class documentation for information about state changing.
void ChangeState(TRecorderState *newstate, Bool_t deletePreviousState = kTRUE);
public:
//---- Modes of replaying. Only kRealtime implemented so far
enum EReplayModes {
kRealtime
};
//---- States of recorder. In every moment, recorder is in right
// one of these states.
enum ERecorderState {
kInactive,
kRecording,
kPaused,
kReplaying
};
// Creates recorder and sets its state as INACTIVE
TRecorder();
TRecorder(const char *filename, Option_t *option = "READ");
// Deletes recorder together with its current state
virtual ~TRecorder();
void Browse(TBrowser *);
// Starts recording of events to the given file
void Start(const char *filename, Option_t *option = "RECREATE", Window_t *w = 0, Int_t winCount = 0);
// Stops recording of events
void Stop(Bool_t guiCommand = kFALSE);
// Replays recorded events from given file
Bool_t Replay(const char *filename, Bool_t showMouseCursor = kTRUE, TRecorder::EReplayModes mode = kRealtime);
// Replays recorded events from current file
void Replay() { Replay(fFilename); } // *MENU*
// Pauses replaying
void Pause();
// Resumes paused replaying
void Resume();
// Stops (cancels) replaying
void ReplayStop();
// Prints out the list of recorded commandline events
void ListCmd(const char *filename);
// Prints out the list of recorded GUI events
void ListGui(const char *filename);
// Gets current state of recorder
virtual TRecorder::ERecorderState GetState() const;
// Saves all the canvases previous to the TRecorder
void PrevCanvases(const char *filename, Option_t *option);
ClassDef(TRecorder,2) // Class provides direct recorder/replayer interface for a user.
};
//////////////////////////////////////////////////////////////////////////
// //
// TRecorderState //
// //
// Abstract class that defines interface for a state of recorder. //
// Inherited classes are: //
// - TRecorderInactive //
// - TRecorderRecording //
// - TRecorderReplaying //
// - TRecorderPaused //
// //
// See TRecorder for more information about creating, using, //
// changing and deleting states. //
// //
//////////////////////////////////////////////////////////////////////////
class TRecorderState
{
protected:
friend class TRecorder;
void ChangeState(TRecorder *r, TRecorderState *s, Bool_t deletePreviousState) { r->ChangeState(s, deletePreviousState); }
public:
virtual ~TRecorderState() {}
virtual void Start(TRecorder *, const char *, Option_t *, Window_t *, Int_t) {}
virtual void Stop(TRecorder *, Bool_t ) {}
virtual Bool_t Replay(TRecorder *, const char *, Bool_t, TRecorder::EReplayModes) { return false; }
virtual void Pause(TRecorder *) {}
virtual void Resume(TRecorder *) {}
virtual void ReplayStop(TRecorder *) {}
virtual void ListCmd(const char *) {}
virtual void ListGui(const char *) {}
virtual void PrevCanvases(const char *, Option_t *) {}
virtual TRecorder::ERecorderState GetState() const = 0;
ClassDef(TRecorderState, 0) // Abstract class that defines interface for a state of recorder
};
//////////////////////////////////////////////////////////////////////////
// //
// TRecorderReplaying //
// //
// Represents state of TRecorder when replaying previously recorded //
// events. //
// //
// Not intended to be used by a user directly. //
// [Replaying.JPG] //
// //
//////////////////////////////////////////////////////////////////////////
class TRecorderReplaying : public TRecorderState
{
private:
virtual ~TRecorderReplaying();
Bool_t PrepareNextEvent();
Bool_t RemapWindowReferences();
Bool_t CanOverlap();
Bool_t FilterEvent(TRecGuiEvent *e);
TRecorder *fRecorder; // Reference to recorder (owner of this state) is kept in order to switch
// recorder to INACTIVE state after replaying is finished
TFile *fFile; // ROOT file which the recorded events are being read from
TCanvas *fCanv; // Used to record the previous canvases
TTimer *fTimer; // Timer used for replaying
TTree *fWinTree; // TTree with recorded windows (=registered during recording)
TTree *fGuiTree; // TTree with recorded GUI events
TTree *fCmdTree; // TTree with recorded commandline events
TTree *fExtraTree; // TTree with recorded extra events (PaveLabels and Texts)
ULong64_t fWin; // Window ID being currenty mapped
TRecGuiEvent *fGuiEvent; // GUI event being currently replayed
TRecCmdEvent *fCmdEvent; // Commandline event being currently replayed
TRecExtraEvent *fExtraEvent; // Extra event being currently replayed
Int_t fRegWinCounter; // Counter of registered windows when replaying
Int_t fGuiTreeCounter; // Counter of GUI events that have been replayed
Int_t fCmdTreeCounter; // Counter of commandline events that have been replayed
Int_t fExtraTreeCounter; // Counter of extra events that have been replayed
Int_t fWinTreeEntries; // Number of registered windows during _recording_
TMutex *fMutex;
TList *fWindowList; // List of TRecWinPair objects. Mapping of window IDs is stored here.
TRecEvent *fNextEvent; // The next event that is going to be replayed (GUI event or commandline)
TTime fPreviousEventTime; // Execution time of the previously replayed event.
// It is used for computing time difference between two events.
Bool_t fWaitingForWindow; // Signalizes that we wait for a window to be registered in order
// to replay the next event fNextEvent.
// Registraion of windows can last different time when recording and replaying.
// If there is an event ready to be replayed but the corresponding windows has not been yet
// registered, we wait (postopone fNextEvent) until it is registered.
Bool_t fEventReplayed; // Signalizes that the last event sent to the replaying has been already replayed.
// Sometimes an execution of an event can take more time than during recording.
// This ensures that the next event is sent to replaying AFTER
// the replaying of the previous one finishes and not earlier.
// Exceptions: ButtonPress and ButtonRelease events (See TRecorderReplaying::CanBeOverlapped)
Bool_t fShowMouseCursor; // Specifies if mouse cursor should be also replayed
Bool_t fFilterStatusBar; // Special flag to filter status bar element
protected:
friend class TRecorderInactive;
friend class TRecorderPaused;
TRecorderReplaying(const char *filename);
Bool_t Initialize(TRecorder *r, Bool_t showMouseCursor, TRecorder::EReplayModes mode);
public:
virtual TRecorder::ERecorderState GetState() const { return TRecorder::kReplaying; }
virtual void Pause(TRecorder *r);
virtual void Continue();
virtual void ReplayStop(TRecorder *r);
void RegisterWindow(Window_t w); //SLOT
void ReplayRealtime(); //SLOT
ClassDef(TRecorderReplaying, 0) // Represents state of TRecorder when replaying
};
//////////////////////////////////////////////////////////////////////////
// //
// TRecorderRecording //
// //
// Represents state of TRecorder when recording events. //
// //
// Not intended to be used by a user directly. //
// //
//////////////////////////////////////////////////////////////////////////
class TRecorderRecording: public TRecorderState
{
private:
virtual ~TRecorderRecording();
Bool_t IsFiltered(Window_t id);
void SetTypeOfConfigureNotify(Event_t *e);
void CopyEvent(Event_t *e, Window_t wid);
TRecorder *fRecorder; // Reference to recorder (owner of this state) is kept in order to switch
// recorder back to INACTIVE state after recording is finished
TFile *fFile; // ROOT file to store recorded events in
TTimer *fTimer; // Timer used for recording
TTimer *fMouseTimer; // Timer used for recording mouse position
Long64_t fBeginPave; // TLatex/TPaveLabel edition starting time
TTree *fWinTree; // TTree with registered windows
TTree *fGuiTree; // TTree with recorded GUI events
TTree *fCmdTree; // TTree with recorded commandline events
TTree *fExtraTree; // TTree with recorded extra events (PaveLabels and Texts)
ULong64_t fWin; // The newest registered window to be stored in TTree
TRecGuiEvent *fGuiEvent; // The newest GUI event to be stored in TTree
TRecCmdEvent *fCmdEvent; // The newest commandline event to be stored in TTree
TRecExtraEvent *fExtraEvent; // The newest extra event to be stored in TTree
Bool_t fCmdEventPending; // Indication if there is a still pending commandline event that should be stored.
// Commandline events are stored with 1 event delay to ensure skipping
// the last event 'TRecorder::Stop' that is not supposed to be recorded
Int_t fRegWinCounter; // Counter of registered ROOT windows.
// It is increased every time when a new window is registered
Int_t fFilteredIdsCount; // Only when GUI for recorder is used: Count of windows in GUI recorder
Window_t *fFilteredIds; // Only when GUI for recorer is used: IDs of windows that creates that GUI.
// Events for GUI recorder are not recorded.
Bool_t fFilterEventPave; // Special flag to filter events during the pave recording
protected:
friend class TRecorderInactive;
TRecorderRecording(TRecorder *r, const char *filename, Option_t *option, Window_t *w, Int_t winCount);
Bool_t StartRecording();
public:
virtual TRecorder::ERecorderState GetState() const { return TRecorder::kRecording; }
virtual void Stop(TRecorder *r, Bool_t guiCommand);
void RegisterWindow(Window_t w); //SLOT
void RecordCmdEvent(const char *line); //SLOT
void RecordGuiEvent(Event_t *e, Window_t wid); //SLOT
void RecordGuiBldEvent(Event_t *e); //SLOT
void RecordGuiCNEvent(Event_t *e); //SLOT
void RecordMousePosition();
void RecordPave(const TObject *obj); //SLOT
void RecordText(const TObject *obj); //SLOT
void FilterEventPave(); //SLOT
void StartEditing(); //SLOT
void RecordExtraEvent(TString line, TTime extTime);
ClassDef(TRecorderRecording, 0) // Represents state of TRecorder when recording events
};
//////////////////////////////////////////////////////////////////////////
// //
// TRecorderInactive //
// //
// Represents state of TRecorder just after its creation. //
// Nor recording neither replaying is being executed in this state. //
// //
// Not intended to be used by a user directly. //
// //
//////////////////////////////////////////////////////////////////////////
class TRecorderInactive : public TRecorderState
{
private:
TSeqCollection *fCollect;
public:
virtual ~TRecorderInactive() {}
TRecorderInactive() : fCollect(0) {}
virtual void ListCmd(const char *filename);
virtual void ListGui(const char *filename);
virtual void Start(TRecorder *r, const char *filename, Option_t *option, Window_t *w = 0, Int_t winCount = 0);
virtual Bool_t Replay(TRecorder *r, const char *filename, Bool_t showMouseCursor, TRecorder::EReplayModes mode);
virtual TRecorder::ERecorderState GetState() const { return TRecorder::kInactive; }
static void DumpRootEvent(TRecGuiEvent *e, Int_t n);
static long DisplayValid(Long_t n) { return ( n < 0 ? -1 : n); }
void PrevCanvases(const char *filename, Option_t *option);
ClassDef(TRecorderInactive, 0) // Represents state of TRecorder after its creation
};
//////////////////////////////////////////////////////////////////////////
// //
// TRecorderPaused //
// //
// Represents state of TRecorder when replaying was paused //
// by a user. //
// The paused replaying is remembered and after Resume call can //
// be continued again. //
// //
// Not intended to be used by a user directly. //
// //
//////////////////////////////////////////////////////////////////////////
class TRecorderPaused: public TRecorderState
{
private:
virtual ~TRecorderPaused() {}
TRecorderReplaying *fReplayingState; // Replaying that is paused
protected:
friend class TRecorderReplaying;
TRecorderPaused(TRecorderReplaying *state);
public:
virtual TRecorder::ERecorderState GetState() const { return TRecorder::kPaused; }
virtual void Resume(TRecorder *r);
virtual void ReplayStop(TRecorder *r);
ClassDef(TRecorderPaused, 0) // Represents state of TRecorder when paused
};
//////////////////////////////////////////////////////////////////////////
// //
// TGRecorder //
// //
// Provides GUI for TRecorder class. //
// //
//////////////////////////////////////////////////////////////////////////
class TGRecorder : public TGMainFrame
{
private:
TRecorder *fRecorder; // Recorder
TGPictureButton *fStartStop; // Button for start and stop of recording
TGPictureButton *fReplay; // Button for start of replaying
TGLabel *fStatus; // Label with actual status
TGLabel *fTimeDisplay; // Label with time counter
TGCheckButton *fCursorCheckBox; // Check box "Show mouse cursor" for replaying
TTimer *fTimer; // Timer for handling GUI of recorder
time_t fStart, fElapsed; // playing/recording time
static const Int_t fgWidgetsCount = 12; // Number of windows in GUI recorder
Window_t fFilteredIds[fgWidgetsCount]; // IDs of these windows in GUI recorder
void SetDefault();
public:
TGRecorder(const TGWindow *p = 0, UInt_t w = 230, UInt_t h = 150);
virtual ~TGRecorder();
void StartStop();
void Update();
void Replay();
ClassDef(TGRecorder,0) // GUI class of the event recorder.
};
#endif // ROOT_TRecorder