/usr/include/crystalspace-2.0/csutil/eventhandlers.h is in libcrystalspace-dev 2.0+dfsg-1build1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 | /*
Crystal Space 3D engine: Event and module naming interface
(C) 2005 by Adam D. Bradley <artdodge@cs.bu.edu>
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with this library; if not, write to the Free
Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#ifndef __CS_CSUTIL_EVENTHANDLERS_H__
#define __CS_CSUTIL_EVENTHANDLERS_H__
#include "cssysdef.h"
#include "csextern.h"
#include "iutil/eventnames.h"
#include "iutil/eventhandlers.h"
#include "iutil/eventh.h"
#include "csutil/csstring.h"
#include "csutil/eventnames.h"
#include "csutil/scf_implementation.h"
#include "csutil/threading/rwmutex.h"
#include "csutil/hash.h"
#include "csutil/strset.h"
#include "csutil/ref.h"
struct iObjectRegistry;
/**\file
* Event handler naming, name management, indexing, and instantiation
*/
/**
* \addtogroup event_handling
* @{ */
struct iEventHandler;
/**
* The csEventHandlerRegistry maintains a global one-to-one mapping from strings
* to csHandlerIDs, and a one-to-(zero or one) mapping from csHandlerIDs to
* iEventHandler pointers.
*/
class CS_CRYSTALSPACE_EXPORT csEventHandlerRegistry :
public scfImplementation1<csEventHandlerRegistry, iEventHandlerRegistry>
{
public:
csEventHandlerRegistry(iObjectRegistry*);
~csEventHandlerRegistry();
/**
* Get a csHandlerID based upon some string.
* This should only ever be done to reference generic
* (non-instantiated) handler names or single-instance handlers.
*/
csHandlerID GetGenericID (const char*);
static csHandlerID GetGenericID (iObjectRegistry *reg,
const char* name)
{
return GetRegistry (reg)->GetGenericID (name);
}
csHandlerID GetGenericPreBoundID (csHandlerID);
static csHandlerID GetGenericPreBoundID (
iObjectRegistry *reg, csHandlerID id)
{
return GetRegistry (reg)->GetGenericPreBoundID (id);
}
csHandlerID GetGenericPostBoundID (csHandlerID);
static csHandlerID GetGenericPostBoundID (
iObjectRegistry *reg, csHandlerID id)
{
return GetRegistry (reg)->GetGenericPostBoundID (id);
}
/**
* Get the csHandlerID for a specified event handler, which provides
* its own name via the iEventHandler::GetInstanceName() method.
*/
csHandlerID GetID (iEventHandler *);
static csHandlerID GetID (iObjectRegistry *reg,
iEventHandler *h)
{
return GetRegistry (reg)->GetID (h);
}
csHandlerID RegisterID (iEventHandler *);
static csHandlerID RegisterID (iObjectRegistry *reg,
iEventHandler *h)
{
return GetRegistry (reg)->RegisterID (h);
}
/**
* Get the ID for a given event handler name. This should usually
* not be used, since it does not handle magic creation of
* ":pre" and ":post" signpost handlers or any other such
* bookkeeping magic.
*/
csHandlerID GetID (const char*);
static csHandlerID GetID (iObjectRegistry *reg,
const char* name)
{
return GetRegistry (reg)->GetID (name);
}
/**
* Used when an iEventHandler is desroyed to remove our reference.
*/
void ReleaseID (csHandlerID id);
static void ReleaseID (iObjectRegistry *reg,
csHandlerID id)
{
GetRegistry (reg)->ReleaseID (id);
}
/**
* Used when an iEventHandler is destroyed to remove our reference.
*/
void ReleaseID (iEventHandler *);
static void ReleaseID (iObjectRegistry *reg,
iEventHandler *h)
{
GetRegistry (reg)->ReleaseID (h);
}
/**
* Returns the handler registered for a csHandlerID
* (will be 0 if csHandlerID is a generic name, i.e.,
* if (!csEventHandlerRegistry->IsInstance(id)).
*/
iEventHandler* GetHandler (csHandlerID id);
static inline iEventHandler* GetHandler (
iObjectRegistry *reg, csHandlerID id)
{
return GetRegistry (reg)->GetHandler (id);
};
/**
* returns true if instanceid is a handler instance,
* genericid is a generic instance, and instanceid is an
* instance of genericid in particular.
*/
bool IsInstanceOf (csHandlerID instanceid,
csHandlerID genericid);
static inline bool IsInstanceOf (iObjectRegistry *reg,
csHandlerID instanceid, csHandlerID genericid)
{
return GetRegistry (reg)->IsInstanceOf (instanceid, genericid);
};
/**
* returns true if id is a handler instance (i.e., not a generic name).
*/
bool IsInstance (csHandlerID id);
static inline bool IsInstance (iObjectRegistry *reg,
csHandlerID id)
{
return GetRegistry (reg)->IsInstance (id);
};
/**
* Returns the csHandleID for the generic name for instance name id.
*/
csHandlerID const GetGeneric (csHandlerID id);
static inline csHandlerID GetGeneric (iObjectRegistry *reg,
csHandlerID id)
{
return GetRegistry (reg)->GetGeneric (id);
};
/**
* Returns the string name for a csHandlerID.
*/
const char* GetString (csHandlerID id);
static inline const char* GetString (
iObjectRegistry *reg, csHandlerID id)
{
return GetRegistry (reg)->GetString (id);
};
static csRef<iEventHandlerRegistry> GetRegistry (
iObjectRegistry *object_reg);
private:
iObjectRegistry *object_reg;
csStringSet names;
csHash<csHandlerID, csHandlerID> instantiation;
struct KnownEventHandler
{
iEventHandler* handler;
int refcount;
KnownEventHandler (iEventHandler* handler) : handler (handler),
refcount (1) {}
};
csHash<KnownEventHandler, csHandlerID> idToHandler;
csHash<csHandlerID, csPtrKey<iEventHandler> > handlerToID;
csHash<csHandlerID, csHandlerID> handlerPres;
csHash<csHandlerID, csHandlerID> handlerPosts;
uint32 instanceCounter;
CS::Threading::ReadWriteMutex mutex;
};
/* @} */
struct iFrameEventSignpost : public iEventHandler
{
public:
iFrameEventSignpost () { }
virtual ~iFrameEventSignpost () { }
CS_EVENTHANDLER_DEFAULT_INSTANCE_CONSTRAINTS
virtual bool HandleEvent (iEvent&)
{
return false;
}
};
class FrameSignpost_Logic3D
: public scfImplementation2<FrameSignpost_Logic3D,
iFrameEventSignpost,
scfFakeInterface<iEventHandler> >
{
private:
FrameSignpost_Logic3D () : scfImplementationType (this) { }
public:
CS_EVENTHANDLER_NAMES("crystalspace.signpost.logic3d")
virtual const csHandlerID * GenericPrec
(csRef<iEventHandlerRegistry> &,
csRef<iEventNameRegistry> &,
csEventID) const;
virtual const csHandlerID * GenericSucc
(csRef<iEventHandlerRegistry> &r1,
csRef<iEventNameRegistry> &r2,
csEventID e) const;
};
class FrameSignpost_3D2D
: public scfImplementation2<FrameSignpost_3D2D,
iFrameEventSignpost,
scfFakeInterface<iEventHandler> >
{
private:
FrameSignpost_3D2D () : scfImplementationType (this) { }
public:
CS_EVENTHANDLER_NAMES("crystalspace.signpost.3d2d")
virtual const csHandlerID * GenericPrec
(csRef<iEventHandlerRegistry> &,
csRef<iEventNameRegistry> &,
csEventID) const;
virtual const csHandlerID * GenericSucc
(csRef<iEventHandlerRegistry> &r1,
csRef<iEventNameRegistry> &r2,
csEventID e) const;
};
class FrameSignpost_2DConsole
: public scfImplementation2<FrameSignpost_2DConsole,
iFrameEventSignpost,
scfFakeInterface<iEventHandler> >
{
private:
FrameSignpost_2DConsole () : scfImplementationType (this) { }
public:
CS_EVENTHANDLER_NAMES("crystalspace.signpost.2dconsole")
virtual const csHandlerID * GenericPrec
(csRef<iEventHandlerRegistry> &,
csRef<iEventNameRegistry> &,
csEventID) const;
virtual const csHandlerID * GenericSucc
(csRef<iEventHandlerRegistry> &r1,
csRef<iEventNameRegistry> &r2,
csEventID e) const;
};
class FrameSignpost_ConsoleDebug
: public scfImplementation2<FrameSignpost_ConsoleDebug,
iFrameEventSignpost,
scfFakeInterface<iEventHandler> >
{
private:
FrameSignpost_ConsoleDebug () : scfImplementationType (this) { }
public:
CS_EVENTHANDLER_NAMES("crystalspace.signpost.consoledebug")
virtual const csHandlerID * GenericPrec
(csRef<iEventHandlerRegistry> &,
csRef<iEventNameRegistry> &,
csEventID) const;
virtual const csHandlerID * GenericSucc
(csRef<iEventHandlerRegistry> &r1,
csRef<iEventNameRegistry> &r2,
csEventID e) const;
};
class FrameSignpost_DebugFrame
: public scfImplementation2<FrameSignpost_DebugFrame,
iFrameEventSignpost,
scfFakeInterface<iEventHandler> >
{
private:
FrameSignpost_DebugFrame () : scfImplementationType (this) { }
public:
CS_EVENTHANDLER_NAMES("crystalspace.signpost.debugframe")
virtual const csHandlerID * GenericPrec
(csRef<iEventHandlerRegistry> &,
csRef<iEventNameRegistry> &,
csEventID) const;
virtual const csHandlerID * GenericSucc
(csRef<iEventHandlerRegistry> &r1,
csRef<iEventNameRegistry> &r2,
csEventID e) const;
};
/**
* Use this macro to declare your event handler as wanting to
* handle the csevFrame event in the "logic" phase (i.e.,
* before any handlers in the "3D" phase).
*/
#define CS_EVENTHANDLER_PHASE_LOGIC(x) \
CS_EVENTHANDLER_NAMES(x) \
CS_EVENTHANDLER_DEFAULT_INSTANCE_CONSTRAINTS \
virtual const csHandlerID * GenericPrec \
(csRef<iEventHandlerRegistry> &, csRef<iEventNameRegistry> &, \
csEventID) const { \
return 0; \
} \
virtual const csHandlerID * GenericSucc \
(csRef<iEventHandlerRegistry> &r1, csRef<iEventNameRegistry> &r2, \
csEventID event) const { \
if (event != csevFrame(r2)) \
return 0; \
static csHandlerID succConstraint[6] = { \
FrameSignpost_Logic3D::StaticID(r1), \
FrameSignpost_3D2D::StaticID(r1), \
FrameSignpost_2DConsole::StaticID(r1), \
FrameSignpost_ConsoleDebug::StaticID(r1), \
FrameSignpost_DebugFrame::StaticID(r1), \
CS_HANDLERLIST_END \
}; \
return succConstraint; \
}
/**
* Use this macro to declare your event handler as wanting to
* handle the csevFrame event in the "3D" phase (i.e.,
* after any handlers in the "logic" phase and before any
* handlers in the "2D" phase).
*/
#define CS_EVENTHANDLER_PHASE_3D(x) \
CS_EVENTHANDLER_NAMES(x) \
CS_EVENTHANDLER_DEFAULT_INSTANCE_CONSTRAINTS \
virtual const csHandlerID * GenericPrec \
(csRef<iEventHandlerRegistry> &r1, csRef<iEventNameRegistry> &r2, \
csEventID event) const { \
if (event != csevFrame(r2)) \
return 0; \
static csHandlerID precConstraint[2] = { \
FrameSignpost_Logic3D::StaticID(r1), \
CS_HANDLERLIST_END \
}; \
return precConstraint; \
} \
virtual const csHandlerID * GenericSucc \
(csRef<iEventHandlerRegistry> &r1, csRef<iEventNameRegistry> &r2, \
csEventID event) const { \
if (event != csevFrame(r2)) \
return 0; \
static csHandlerID succConstraint[5] = { \
FrameSignpost_3D2D::StaticID(r1), \
FrameSignpost_2DConsole::StaticID(r1), \
FrameSignpost_ConsoleDebug::StaticID(r1), \
FrameSignpost_DebugFrame::StaticID(r1), \
CS_HANDLERLIST_END \
}; \
return succConstraint; \
}
/**
* Use this macro to declare your event handler as wanting to
* handle the csevFrame event in the "2D" phase (i.e.,
* after any handlers in the "3D" phase and before any
* handlers in the "console" phase).
*/
#define CS_EVENTHANDLER_PHASE_2D(x) \
CS_EVENTHANDLER_NAMES(x) \
CS_EVENTHANDLER_DEFAULT_INSTANCE_CONSTRAINTS \
virtual const csHandlerID * GenericPrec \
(csRef<iEventHandlerRegistry> &r1, csRef<iEventNameRegistry> &r2, \
csEventID event) const { \
if (event != csevFrame(r2)) \
return 0; \
static csHandlerID precConstraint[3] = { \
FrameSignpost_Logic3D::StaticID(r1), \
FrameSignpost_3D2D::StaticID(r1), \
CS_HANDLERLIST_END \
}; \
return precConstraint; \
} \
virtual const csHandlerID * GenericSucc \
(csRef<iEventHandlerRegistry> &r1, csRef<iEventNameRegistry> &r2, \
csEventID event) const { \
if (event != csevFrame(r2)) \
return 0; \
static csHandlerID succConstraint[4] = { \
FrameSignpost_2DConsole::StaticID(r1), \
FrameSignpost_ConsoleDebug::StaticID(r1), \
FrameSignpost_DebugFrame::StaticID(r1), \
CS_HANDLERLIST_END \
}; \
return succConstraint; \
}
/**
* Use this macro to declare your event handler as wanting to
* handle the csevFrame event in the "Console" phase (i.e.,
* after any handlers in the "2D" phase and before any
* handlers in the "debug" phase).
*/
#define CS_EVENTHANDLER_PHASE_CONSOLE(x) \
CS_EVENTHANDLER_NAMES(x) \
CS_EVENTHANDLER_DEFAULT_INSTANCE_CONSTRAINTS \
virtual const csHandlerID * GenericPrec \
(csRef<iEventHandlerRegistry> &r1, csRef<iEventNameRegistry> &r2, \
csEventID event) const { \
if (event != csevFrame(r2)) \
return 0; \
static csHandlerID precConstraint[4] = { \
FrameSignpost_Logic3D::StaticID(r1), \
FrameSignpost_3D2D::StaticID(r1), \
FrameSignpost_2DConsole::StaticID(r1), \
CS_HANDLERLIST_END \
}; \
return precConstraint; \
} \
virtual const csHandlerID * GenericSucc \
(csRef<iEventHandlerRegistry> &r1, csRef<iEventNameRegistry> &r2, \
csEventID event) const { \
if (event != csevFrame(r2)) \
return 0; \
static csHandlerID succConstraint[3] = { \
FrameSignpost_ConsoleDebug::StaticID(r1), \
FrameSignpost_DebugFrame::StaticID(r1), \
CS_HANDLERLIST_END \
}; \
return succConstraint; \
}
/**
* Use this macro to declare your event handler as wanting to
* handle the csevFrame event in the "Debug" phase (i.e.,
* after any handlers in the "Console" phase and before any
* handlers in the "Frame" phase).
*/
#define CS_EVENTHANDLER_PHASE_DEBUG(x) \
CS_EVENTHANDLER_NAMES(x) \
CS_EVENTHANDLER_DEFAULT_INSTANCE_CONSTRAINTS \
virtual const csHandlerID * GenericPrec \
(csRef<iEventHandlerRegistry> &r1, csRef<iEventNameRegistry> &r2, \
csEventID event) const { \
if (event != csevFrame(r2)) \
return 0; \
static csHandlerID precConstraint[5] = { \
FrameSignpost_Logic3D::StaticID(r1), \
FrameSignpost_3D2D::StaticID(r1), \
FrameSignpost_2DConsole::StaticID(r1), \
FrameSignpost_ConsoleDebug::StaticID(r1), \
CS_HANDLERLIST_END \
}; \
return precConstraint; \
} \
virtual const csHandlerID * GenericSucc \
(csRef<iEventHandlerRegistry> &r1, csRef<iEventNameRegistry> &r2, \
csEventID event) const { \
if (event != csevFrame(r2)) \
return 0; \
static csHandlerID succConstraint[2] = { \
FrameSignpost_DebugFrame::StaticID(r1), \
CS_HANDLERLIST_END \
}; \
return succConstraint; \
}
/**
* Use this macro to declare your event handler as wanting to
* handle the csevFrame event in the "Frame" phase (i.e.,
* after any handlers in the "Debug" phase.
*/
#define CS_EVENTHANDLER_PHASE_FRAME(x) \
CS_EVENTHANDLER_NAMES(x) \
CS_EVENTHANDLER_DEFAULT_INSTANCE_CONSTRAINTS \
virtual const csHandlerID * GenericPrec \
(csRef<iEventHandlerRegistry> &r1, csRef<iEventNameRegistry> &r2, \
csEventID event) const { \
if (event != csevFrame(r2)) \
return 0; \
static csHandlerID precConstraint[6]= { \
FrameSignpost_Logic3D::StaticID(r1), \
FrameSignpost_3D2D::StaticID(r1), \
FrameSignpost_2DConsole::StaticID(r1), \
FrameSignpost_ConsoleDebug::StaticID(r1), \
FrameSignpost_DebugFrame::StaticID(r1), \
CS_HANDLERLIST_END \
}; \
return precConstraint; \
} \
virtual const csHandlerID * GenericSucc \
(csRef<iEventHandlerRegistry> &, csRef<iEventNameRegistry> &, \
csEventID) const { \
return 0; \
}
#endif // __CS_CSUTIL_EVENTHANDLERS_H__
|