00001 // $Id: objchge.cpp 1282 2006-06-09 09:46:49Z alex $ 00002 /* @@tag:xara-cn@@ DO NOT MODIFY THIS LINE 00003 ================================XARAHEADERSTART=========================== 00004 00005 Xara LX, a vector drawing and manipulation program. 00006 Copyright (C) 1993-2006 Xara Group Ltd. 00007 Copyright on certain contributions may be held in joint with their 00008 respective authors. See AUTHORS file for details. 00009 00010 LICENSE TO USE AND MODIFY SOFTWARE 00011 ---------------------------------- 00012 00013 This file is part of Xara LX. 00014 00015 Xara LX is free software; you can redistribute it and/or modify it 00016 under the terms of the GNU General Public License version 2 as published 00017 by the Free Software Foundation. 00018 00019 Xara LX and its component source files are distributed in the hope 00020 that it will be useful, but WITHOUT ANY WARRANTY; without even the 00021 implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. 00022 See the GNU General Public License for more details. 00023 00024 You should have received a copy of the GNU General Public License along 00025 with Xara LX (see the file GPL in the root directory of the 00026 distribution); if not, write to the Free Software Foundation, Inc., 51 00027 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA 00028 00029 00030 ADDITIONAL RIGHTS 00031 ----------------- 00032 00033 Conditional upon your continuing compliance with the GNU General Public 00034 License described above, Xara Group Ltd grants to you certain additional 00035 rights. 00036 00037 The additional rights are to use, modify, and distribute the software 00038 together with the wxWidgets library, the wxXtra library, and the "CDraw" 00039 library and any other such library that any version of Xara LX relased 00040 by Xara Group Ltd requires in order to compile and execute, including 00041 the static linking of that library to XaraLX. 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However, you may 00072 (at your option) wish contribute them to Xara's source tree. You can 00073 find details of how to do this at: 00074 http://www.xaraxtreme.org/developers/ 00075 00076 Prior to contributing your modifications, you will need to complete our 00077 contributor agreement. This can be found at: 00078 http://www.xaraxtreme.org/developers/contribute/ 00079 00080 Please note that Xara will not accept modifications which modify any of 00081 the text between the start and end of this header (marked 00082 XARAHEADERSTART and XARAHEADEREND). 00083 00084 00085 MARKS 00086 ----- 00087 00088 Xara, Xara LX, Xara X, Xara X/Xtreme, Xara Xtreme, the Xtreme and Xara 00089 designs are registered or unregistered trademarks, design-marks, and/or 00090 service marks of Xara Group Ltd. All rights in these marks are reserved. 00091 00092 00093 Xara Group Ltd, Gaddesden Place, Hemel Hempstead, HP2 6EX, UK. 00094 http://www.xara.com/ 00095 00096 =================================XARAHEADEREND============================ 00097 */ 00098 // This file contains code to handle ObjChange parameter classes. 00099 // An ObjChange parameter is used to pass to a parent node informing 00100 // it that a child has changed. 00101 00102 /* 00103 */ 00104 00105 #include "camtypes.h" 00106 //#include "resource.h" 00107 #include "objchge.h" 00108 //#include "errors.h" - in camtypes.h [AUTOMATICALLY REMOVED] 00109 //#include "paths.h" - in camtypes.h [AUTOMATICALLY REMOVED] 00110 //#include "undoop.h" - in camtypes.h [AUTOMATICALLY REMOVED] 00111 //#include "spread.h" - in camtypes.h [AUTOMATICALLY REMOVED] 00112 00113 DECLARE_SOURCE("$Revision: 1282 $"); 00114 00115 CC_IMPLEMENT_DYNAMIC(ObjChangeParam, CCObject) 00116 CC_IMPLEMENT_DYNAMIC(ObjChangePathEdit, ObjChangeParam) 00117 CC_IMPLEMENT_DYNAMIC(ObjChangeParamWithToken, ObjChangeParam) 00118 00119 // Declare smart memory handling in Debug builds 00120 #define new CAM_DEBUG_NEW 00121 00122 00123 /******************************************************************************************** 00124 00125 > ObjChangeFlags::ObjChangeFlags( BOOL Delete = FALSE, 00126 BOOL Replace = FALSE, 00127 BOOL Move = FALSE, 00128 BOOL Attr = FALSE, 00129 BOOL MultiReplace = FALSE, 00130 BOOL Transform = FALSE, 00131 BOOL Copy = FALSE, 00132 BOOL Regen = FALSE); 00133 00134 Author: Mike_Kenny (Xara Group Ltd) <camelotdev@xara.com> 00135 Created: 09/01/95 00136 Purpose: constructor for ObjChange flags class 00137 00138 ********************************************************************************************/ 00139 00140 ObjChangeFlags::ObjChangeFlags( BOOL Delete, 00141 BOOL Replace, 00142 BOOL Move, 00143 BOOL Attrib, 00144 BOOL MultiReplace, 00145 BOOL Transform, 00146 BOOL Copy, 00147 BOOL Regen) 00148 { 00149 DeleteNode = Delete; 00150 ReplaceNode = Replace; 00151 MoveNode = Move; 00152 Attribute = Attrib; 00153 MultiReplaceNode = MultiReplace; 00154 TransformNode = Transform; 00155 CopyNode = Copy; 00156 RegenerateNode = Regen; 00157 } 00158 00159 00160 /******************************************************************************************** 00161 00162 > ObjChangeMask::ObjChangeMask() 00163 00164 Author: Mike_Kenny (Xara Group Ltd) <camelotdev@xara.com> 00165 Created: 11/01/95 00166 Purpose: constructor for ObjChangeMask. This sets the various maskable changes to 00167 false, ie they will not be sent during and interactive change. 00168 00169 ********************************************************************************************/ 00170 00171 ObjChangeMask::ObjChangeMask() 00172 { 00173 // set all flags to false; 00174 EorBlobs = FALSE; 00175 Finished = FALSE; 00176 } 00177 00178 /******************************************************************************************** 00179 00180 > void ObjChangeMask::ClaimAll() 00181 00182 Author: Mike_Kenny (Xara Group Ltd) <camelotdev@xara.com> 00183 Created: 11/01/95 00184 Purpose: A quick way of setting all the mask bits to true, for a particular 00185 ObjChangeMask. This starts forcing all ObjChange messages for a particular 00186 op to be sent. 00187 00188 ********************************************************************************************/ 00189 00190 void ObjChangeMask::ClaimAll() 00191 { 00192 // set all flags to false; 00193 EorBlobs = TRUE; 00194 Finished = TRUE; 00195 } 00196 00197 /******************************************************************************************** 00198 00199 > void ObjChangeMask::CorrectMask() 00200 00201 Author: Mike_Kenny (Xara Group Ltd) <camelotdev@xara.com> 00202 Created: 11/01/95 00203 Purpose: Checks the ObjChangeMask settings and corrects them where necessary. 00204 It thus ensures object change messages are not called out of sequence or 00205 or missed out when necessary. 00206 00207 ********************************************************************************************/ 00208 00209 void ObjChangeMask::CorrectMask() 00210 { 00211 // does nothing at present 00212 } 00213 00214 00215 /******************************************************************************************** 00216 00217 > ObjChangeParam::ObjChangeParam() 00218 00219 Author: Mike_Kenny (Xara Group Ltd) <camelotdev@xara.com> 00220 Created: 09/01/95 00221 Purpose: Constructor for the ObjChangeParam class 00222 00223 ********************************************************************************************/ 00224 00225 ObjChangeParam::ObjChangeParam() 00226 { 00227 ChangeType = OBJCHANGE_UNDEFINED; 00228 pChangeOp = NULL; 00229 pChangeNode = NULL; 00230 DenialReason = 0; 00231 ChangeDirection = OBJCHANGE_CALLEDBYOP; 00232 m_pCallingChild = NULL; 00233 m_bRetainCachedData = FALSE; 00234 } 00235 00236 00237 /******************************************************************************************** 00238 00239 > ObjChangeParam::ObjChangeParam( ObjChangeType cType, 00240 ObjChangeFlags cFlags, 00241 Node* cNode, 00242 UndoableOperation* cOp, 00243 ObjChangeDirection direction=OBJCHANGE_CALLEDBYOP, 00244 Node* pCallingChild = NULL) 00245 00246 Author: Mark_Neves (Xara Group Ltd) <camelotdev@xara.com> 00247 Created: 7/2/95 00248 Inputs: cType = a change type 00249 cFlags = change flags 00250 cNode = a pointer to the node thats changing 00251 cOp = a pointer to the current operation (NULL if the change is occuring 00252 in a none undoable way) 00253 direction = direction in which the AllowOp is being called 00254 pCallingChild = the node calling the AllowOp, if OBJCHANGE_CALLEDBYCHILD set. 00255 Purpose: Initialises an ObjChange parameter block. 00256 00257 ********************************************************************************************/ 00258 00259 ObjChangeParam::ObjChangeParam( ObjChangeType cType, 00260 ObjChangeFlags cFlags, 00261 Node* cNode, 00262 UndoableOperation* cOp, 00263 ObjChangeDirection direction, 00264 Node* pCallingChild) 00265 { 00266 DenialReason = 0; 00267 Define(cType,cFlags,cNode,cOp,direction,pCallingChild); 00268 } 00269 00270 00271 00272 /******************************************************************************************** 00273 00274 > ObjChangeParam::~ObjChangeParam() 00275 00276 Author: Mike_Kenny (Xara Group Ltd) <camelotdev@xara.com> 00277 Created: 09/01/95 00278 Purpose: Destructor for the ObjChangeParam class 00279 00280 ********************************************************************************************/ 00281 00282 ObjChangeParam::~ObjChangeParam() 00283 { 00284 } 00285 00286 00287 /******************************************************************************************** 00288 00289 > void ObjChangeParam::Define(ObjChangeType cType, 00290 ObjChangeFlags cFlags, 00291 Node* cNode, 00292 UndoableOperation* cOp, 00293 ObjChangeDirection direction=OBJCHANGE_CALLEDBYOP, 00294 pCallingChild = NULL) 00295 00296 Author: Mike_Kenny (Xara Group Ltd) <camelotdev@xara.com> 00297 Created: 09/01/95 00298 Inputs: cType = a change type 00299 cFlags = change flags 00300 cNode = a pointer to the node thats changing 00301 cOp = a pointer to the current operation (NULL if the change is occuring 00302 in a none undoable way) 00303 direction = direction in which AllowOp is called 00304 pCallingChild = the node calling the AllowOp, if OBJCHANGE_CALLEDBYCHILD set. 00305 Returns: - 00306 Purpose: Initialises an ObjChange parameter block. 00307 00308 ********************************************************************************************/ 00309 00310 void ObjChangeParam::Define(ObjChangeType cType, 00311 ObjChangeFlags cFlags, 00312 Node* cNode, 00313 UndoableOperation* cOp, 00314 ObjChangeDirection direction, 00315 Node* pCallingChild) 00316 { 00317 ERROR3IF(cType==OBJCHANGE_UNDEFINED,"ObjChangeParam::Define() called with an illegal change type"); 00318 //ERROR3IF(cNode==NULL,"ObjChangeParam::Define() called with a null child node pointer"); 00319 00320 // Now set the internal variables 00321 ChangeType = cType; 00322 ChangeFlags = cFlags; 00323 pChangeOp = cOp; 00324 pChangeNode = cNode; 00325 ChangeDirection = direction; 00326 m_pCallingChild = pCallingChild; 00327 m_bRetainCachedData = FALSE; 00328 } 00329 00330 00331 /******************************************************************************************** 00332 00333 > ObjChangePathEdit::ObjChangePathEdit() 00334 00335 Author: Mike_Kenny (Xara Group Ltd) <camelotdev@xara.com> 00336 Created: 09/01/95 00337 Purpose: Constructor for the ObjChangePathEdit class 00338 00339 ********************************************************************************************/ 00340 00341 ObjChangePathEdit::ObjChangePathEdit() : ObjChangeParam() 00342 { 00343 pChangePath = NULL; 00344 pChangeSpread = NULL; 00345 } 00346 00347 00348 /******************************************************************************************** 00349 00350 > ObjChangePathEdit::~ObjChangePathEdit() 00351 00352 Author: Mike_Kenny (Xara Group Ltd) <camelotdev@xara.com> 00353 Created: 09/01/95 00354 Purpose: Destructor for the ObjChangePathEdit class 00355 00356 ********************************************************************************************/ 00357 00358 ObjChangePathEdit::~ObjChangePathEdit() 00359 { 00360 } 00361 00362 /******************************************************************************************** 00363 00364 > void ObjChangePathEdit::Define( ObjChangeType cType, 00365 ObjChangeFlags cFlags, 00366 Node* cNode, 00367 UndoableOperation* cOp 00368 Path* cPath 00369 Spread* cSpread) 00370 00371 Author: Mike_Kenny (Xara Group Ltd) <camelotdev@xara.com> 00372 Created: 09/01/95 00373 Inputs: cType = a change type 00374 cFlags = change flags 00375 cNode = a pointer to the node thats changing 00376 cOp = a pointer to the current operation 00377 (NULL if the change is occuring in a none undoable way) 00378 cPath = a pointer to the current version of the path 00379 (can be NULL for all but PRE and POSTCHANGE parameters) 00380 cSpread = a pointer to a spread 00381 (can be NULL for all but PRE and POSTCHANGE parameters) 00382 00383 Returns: - 00384 Purpose: Initialises an ObjChangePathEdit parameter block. 00385 00386 ********************************************************************************************/ 00387 00388 void ObjChangePathEdit::Define( ObjChangeType cType, 00389 ObjChangeFlags cFlags, 00390 Node* cNode, 00391 UndoableOperation* cOp, 00392 Path* cPath, 00393 Spread* cSpread) 00394 { 00395 ERROR3IF(cPath==NULL,"ObjChangePathEdit::Define() called with a null edit path"); 00396 ERROR3IF(cSpread==NULL,"ObjChangePathEdit::Define() called with a null edit Spread"); 00397 00398 ObjChangeParam::Define(cType,cFlags,cNode,cOp); 00399 00400 // Now set the internal variables 00401 pChangePath = cPath; 00402 pChangeSpread = cSpread; 00403 } 00404 00405 00406 00407 /******************************************************************************************** 00408 00409 > ChangeCode ObjChangePathEdit::Define(Node* cNode, 00410 UndoableOperation* cOp 00411 Path* cPath 00412 Spread* cSpread 00413 BOOL All) 00414 00415 Author: Mike_Kenny (Xara Group Ltd) <camelotdev@xara.com> 00416 Created: 12/01/95 00417 Inputs: cNode = a pointer to the node thats changing 00418 cOp = a pointer to the current operation 00419 (NULL if the change is occuring in a none undoable way) 00420 cPath = a pointer to the current version of the path 00421 (can be NULL for all but PRE and POSTCHANGE parameters) 00422 cSpread = a pointer to a spread 00423 (can be NULL for all but PRE and POSTCHANGE parameters) 00424 All = a bool, used to send the message to all of cNodes parents 00425 if TRUE or just its immediate parent if FALSE; 00426 Returns: ChangeCode 00427 Purpose: Initialises an ObjChangePathEdit parameter block with a ChangeStarting 00428 message. 00429 00430 ********************************************************************************************/ 00431 00432 ChangeCode ObjChangePathEdit::ObjChangeStarting(Node* cNode, 00433 UndoableOperation* cOp, 00434 Path* cPath, 00435 Spread* cSpread, 00436 BOOL All) 00437 { 00438 // Create some change flags 00439 ObjChangeFlags ChgeFlags; 00440 // Now define the change block 00441 Define(OBJCHANGE_STARTING,ChgeFlags,cNode,cOp,cPath,cSpread); 00442 // Send the message to the nodes parents 00443 ChangeCode Chge = cNode->WarnParentOfChange(this,All); 00444 // Correct the message mask returned 00445 ChangeMask.CorrectMask(); 00446 00447 return Chge; 00448 } 00449 00450 00451 00452 /******************************************************************************************** 00453 00454 > ChangeCode ObjChangePathEdit::RenderCurrentBlobs(Node* cNode, 00455 UndoableOperation* cOp, 00456 Path* cPath, 00457 Spread* cSpread, 00458 BOOL All) 00459 00460 Author: Mike_Kenny (Xara Group Ltd) <camelotdev@xara.com> 00461 Created: 12/01/95 00462 Inputs: See ObjChangeStarting 00463 00464 ********************************************************************************************/ 00465 00466 ChangeCode ObjChangePathEdit::RenderCurrentBlobs(Node* cNode, 00467 UndoableOperation* cOp, 00468 Path* cPath, 00469 Spread* cSpread, 00470 BOOL All) 00471 { 00472 // Create some change flags 00473 ObjChangeFlags ChgeFlags; 00474 // Now define the change block 00475 Define(OBJCHANGE_RENDERCURRENTBLOBS,ChgeFlags,cNode,cOp,cPath,cSpread); 00476 return (cNode->WarnParentOfChange(this,All)); 00477 } 00478 00479 00480 00481 /******************************************************************************************** 00482 00483 > ChangeCode ObjChangePathEdit::RenderChangedBlobs(Node* cNode, 00484 UndoableOperation* cOp, 00485 Path* cPath, 00486 Spread* cSpread, 00487 BOOL All) 00488 00489 Author: Mike_Kenny (Xara Group Ltd) <camelotdev@xara.com> 00490 Created: 12/01/95 00491 Inputs: See ObjChangeStarting 00492 00493 ********************************************************************************************/ 00494 00495 ChangeCode ObjChangePathEdit::RenderChangedBlobs(Node* cNode, 00496 UndoableOperation* cOp, 00497 Path* cPath, 00498 Spread* cSpread, 00499 BOOL All) 00500 { 00501 // Create some change flags 00502 ObjChangeFlags ChgeFlags; 00503 // Now define the change block 00504 Define(OBJCHANGE_RENDERCHANGEDBLOBS,ChgeFlags,cNode,cOp,cPath,cSpread); 00505 return (cNode->WarnParentOfChange(this,All)); 00506 } 00507 00508 00509 00510 /******************************************************************************************** 00511 00512 > ChangeCode ObjChangePathEdit::ObjChangeFinished(Node* cNode, 00513 UndoableOperation* cOp, 00514 Path* cPath, 00515 Spread* cSpread, 00516 BOOL All) 00517 00518 Author: Mike_Kenny (Xara Group Ltd) <camelotdev@xara.com> 00519 Created: 12/01/95 00520 Inputs: See ObjChangeStarting 00521 00522 ********************************************************************************************/ 00523 00524 ChangeCode ObjChangePathEdit::ObjChangeFinished(Node* cNode, 00525 UndoableOperation* cOp, 00526 Path* cPath, 00527 Spread* cSpread, 00528 BOOL All) 00529 { 00530 // Create some change flags 00531 ObjChangeFlags ChgeFlags; 00532 // Now define the change block 00533 Define(OBJCHANGE_FINISHED,ChgeFlags,cNode,cOp,cPath,cSpread); 00534 return (cNode->WarnParentOfChange(this,All)); 00535 } 00536 00537 00538 00539 /******************************************************************************************** 00540 00541 > ChangeCode ObjChangePathEdit::ObjChangeFailed( Node* cNode, 00542 UndoableOperation* cOp, 00543 Path* cPath, 00544 Spread* cSpread, 00545 BOOL All) 00546 00547 Author: Mike_Kenny (Xara Group Ltd) <camelotdev@xara.com> 00548 Created: 12/01/95 00549 Inputs: See ObjChangeStarting 00550 Purpose: Send the parents of cNode an OBJCHANGE_FAILED message. 00551 00552 ********************************************************************************************/ 00553 00554 ChangeCode ObjChangePathEdit::ObjChangeFailed( Node* cNode, 00555 UndoableOperation* cOp, 00556 Path* cPath, 00557 Spread* cSpread, 00558 BOOL All) 00559 { 00560 // Create some change flags 00561 ObjChangeFlags ChgeFlags; 00562 // Now define the change block 00563 Define(OBJCHANGE_FAILED,ChgeFlags,cNode,cOp,cPath,cSpread); 00564 return (cNode->WarnParentOfChange(this,All)); 00565 } 00566 00567 00570 00571 00572 /******************************************************************************************** 00573 00574 > ObjChangeParamWithToken::ObjChangeParamWithToken() 00575 00576 Author: Peter_Arnold (Xara Group Ltd) <camelotdev@xara.com> 00577 Created: 06/03/95 00578 Purpose: Constructor for the ObjChangeParamWithToken class. This is almost idential 00579 to ObjChangeParam, except that it always has an OpToken of the operation 00580 that will be applied. The pointer to the operation may still be NULL. 00581 This gives you a way of seeing what the operation will be before it starts. 00582 Most usefully in an operations GetState. 00583 00584 ********************************************************************************************/ 00585 00586 ObjChangeParamWithToken::ObjChangeParamWithToken( ObjChangeType cType, 00587 ObjChangeFlags cFlags, 00588 Node* cNode, 00589 UndoableOperation* cOp, 00590 String* pToken) 00591 : ObjChangeParam( cType, 00592 cFlags, 00593 cNode, 00594 cOp) 00595 { 00596 OperationToken = *pToken; 00597 } 00598 00599 00600 00601 /******************************************************************************************** 00602 00603 > ObjChangeParamWithToken::~ObjChangeParamWithToken() 00604 00605 Author: Peter_Arnold (Xara Group Ltd) <camelotdev@xara.com> 00606 Created: 06/03/95 00607 Purpose: Destructor for the ObjChangeParamWithToken class 00608 00609 ********************************************************************************************/ 00610 00611 ObjChangeParamWithToken::~ObjChangeParamWithToken() 00612 { 00613 }
1.4.4