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/* -*- mode: C++; tab-width: 4 -*- */
/* ===================================================================== *\
Copyright (c) 2001 Palm, Inc. or its subsidiaries.
All rights reserved.
This file is part of the Palm OS Emulator.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
\* ===================================================================== */
#ifndef EmEventPlayback_h
#define EmEventPlayback_h
#include "ChunkFile.h" // Chunk
#include <limits.h> // LONG_MAX
#include <vector> // vector
/*
EmEventPlayback is responsible for managing the events generated
during a Gremlins run. It doesn't generate the events themselves,
but, one they're created, it has the following duties:
* Recording them in a list so that they can be replayed later.
* Replaying them later
* Saving them to and loading them from a file.
* Logging events for debugging.
* Filtering the events so that not all of them get replayed.
This system is accessed from the other following locations:
* CGremlins : record events as they are generated.
* EmDocument : start playback after loading.
* EmMinimize : set and filter events replayed.
* EmPalmOS : call Initialize, Reset, etc., methods.
* EmPatchMgr : reply events.
* EmPatchModuleSys : inhibit application switching.
* EmSession : inhibit user events during playback.
* Hordes : turn recording on/off; save and load events
as Gremlins are switched.
*/
class EmFileRef;
class SessionFile;
#ifdef _MSC_VER
// VC++ doesn't appear to find the bool specialization when you
// say just "vector<bool>", so let's use its typedef.
typedef _Bvector EmRecordedEventFilter;
#else
typedef vector<bool> EmRecordedEventFilter;
#endif
enum EmRecordedEventType
{
// New items can be freely added to this list, and the list
// can freely be re-ordered.
kRecordedUnknownEvent = -1,
kRecordedKeyEvent,
kRecordedPenEvent,
kRecordedAppSwitchEvent,
kRecordedNullEvent,
kRecordedErrorEvent
};
struct EmRecordedEvent
{
EmRecordedEvent (void);
EmRecordedEvent (const EmRecordedEvent&);
~EmRecordedEvent (void);
EmRecordedEvent& operator= (const EmRecordedEvent&);
EmRecordedEventType eType;
union
{
struct
{
WChar ascii;
UInt16 keycode;
UInt16 modifiers;
} keyEvent;
struct
{
PointType coords;
} penEvent;
struct
{
uint16 cardNo;
uint32 dbID;
uint16 oldCardNo;
uint32 oldDbID;
} appSwitchEvent;
struct
{
} nullEvent;
struct
{
} errorEvent;
};
};
class EmEventPlayback
{
public:
static void Initialize (void);
static void Reset (void);
static void Save (SessionFile&);
static void Load (SessionFile&);
static void Dispose (void);
static void SaveEvents (SessionFile&);
static void LoadEvents (const EmFileRef&);
static void LoadEvents (SessionFile&);
static void RecordEvents (Bool);
static Bool RecordingEvents (void);
static void RecordKeyEvent (WChar ascii,
UInt16 keycode,
UInt16 modifiers);
static void RecordPenEvent (const PointType&);
static void RecordSwitchEvent (uint16 cardNo,
uint32 dbID,
uint16 oldCardNo,
uint32 oldDbID);
static void RecordNullEvent (void);
static void RecordErrorEvent (void);
static void Clear (void);
static void CullEvents (void);
static long CountEnabledEvents (void);
static long GetCurrentEvent (void);
static long GetNumEvents (void);
static long CountNumEvents (void);
static void GetEvent (long, EmRecordedEvent&);
static void EnableEvents (long begin = 0, long end = LONG_MAX);
static void DisableEvents (long begin = 0, long end = LONG_MAX);
static void ReplayEvents (Bool);
static Bool ReplayingEvents (void);
static Bool ReplayGetEvent (void);
static Bool ReplayGetPen (void);
static long FindFirstError (void);
static void LogEvents (void);
private:
static void RecordEvent (const EmRecordedEvent&);
static void LogEvent (const EmRecordedEvent&);
static void ResetPlayback (void);
static Bool GetNextReplayEvent (EmRecordedEvent&);
static Bool ReplayKeyEvent (WChar ascii,
UInt16 keycode,
UInt16 modifiers);
static Bool ReplayPenEvent (const PointType&);
static Bool ReplaySwitchEvent (uint16 cardNo,
uint32 dbID,
uint16 oldCardNo,
uint32 oldDbID);
static Bool ReplayNullEvent (void);
static Bool ReplayErrorEvent (void);
private:
static Chunk fgEvents;
static EmRecordedEventFilter fgMask;
static Bool fgRecording;
static Bool fgReplaying;
struct EmIterationState
{
EmIterationState (void) :
fIndex (0),
fOffset (0),
fPenIsDown (false)
{}
long fIndex;
long fOffset;
Bool fPenIsDown;
};
static EmIterationState fgIterationState;
static EmIterationState fgPrevIterationState;
};
#endif // EmEventPlayback_h
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