00001 // $Id: colourix.h 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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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 // colourix.h - definitions for the Camelot IndexedColour class (Named/Unnamed colours) 00099 00100 00101 #ifndef INC_COLOURIX 00102 #define INC_COLOURIX 00103 00104 00105 //#include "colmodel.h" - in camtypes.h [AUTOMATICALLY REMOVED] 00106 //#include "list.h" - in camtypes.h [AUTOMATICALLY REMOVED] 00107 #include "colcontx.h" 00108 00109 00110 00111 /******************************************************************************************** 00112 00113 < IndexedColourInfo 00114 00115 Comment: Each IndexedColour has an information bitfield in its 'Info' data member. 00116 This provides storage for many bits of useful information. Note that the 00117 structure has been designed to align the bits nicely into 8/16 bit portions 00118 to make life easier for compilers when extracting values. 00119 00120 Information is held on colour model of source and cached colour definitions, 00121 the cache status and output context handle, inheritance in linked colours, 00122 colour type (normal/spot/tint(shade)/linked), and whether a colour is 'deleted' 00123 (hidden in an undo record). 00124 00125 There is a Reserved field, in which the spare bit(s) are retained. 00126 There is currently only 1 spare bit. 00127 00128 A similar field is used in DocColours 00129 00130 SeeAlso: IndexedColour; DocColour 00131 00132 ********************************************************************************************/ 00133 00134 typedef struct 00135 { 00136 UINT32 OCContextHandle : 16; // Handle of context of the cached colour 00137 UINT32 SourceColourModel : 4; // The ColourModel of the source colour data 00138 UINT32 CacheColourModel : 4; // The ColourModel of the cached colour data 00139 00140 UINT32 InheritComponent1 : 1; // Inherited components (4 bits) 00141 UINT32 InheritComponent2 : 1; // (NOTE: Tints use InheritComponent1 to indicate Shade) 00142 UINT32 InheritComponent3 : 1; 00143 UINT32 InheritComponent4 : 1; 00144 00145 UINT32 Deleted : 1; // 'Deleted' flag for undo 'hiding' in ColMgrDlg 00146 00147 UINT32 ColourType : 2; // Colour type (normal/spot/tint/linked) 00148 00149 UINT32 IsNamed : 1; // TRUE if this is a named IndexedColour 00150 } IndexedColourInfo; 00151 00152 00153 00154 /******************************************************************************************** 00155 00156 < IndexedColourType 00157 00158 Comment: IndexedColours can be set to one of 4 types (held in their 2-bit 00159 Info.ColourType field). The types are enumerated as: 00160 MonoOn 00161 COLOURTYPE_NORMAL A Normal colour 00162 COLOURTYPE_SPOT A Spot colour 00163 COLOURTYPE_TINT A Tint of another colour 00164 COLOURTYPE_LINKED A colour Linked to another colour 00165 MonoOff 00166 00167 SeeAlso: IndexedColour::SetType; IndexedColour::GetType; 00168 IndexedColour::SetLinkedParent 00169 00170 ********************************************************************************************/ 00171 00172 typedef enum 00173 { 00174 COLOURTYPE_NORMAL = 0, // The colour is a perfectly normal colour 00175 COLOURTYPE_SPOT, // The colour is a Spot Colour 00176 COLOURTYPE_TINT, // The colour is a Tint (or a shade, a special type of tint) 00177 COLOURTYPE_LINKED // The colour is a Linked colour 00178 } IndexedColourType; 00179 00180 00181 00182 /******************************************************************************************** 00183 00184 > class IndexedColour 00185 00186 Author: Jason_Williams (Xara Group Ltd) <camelotdev@xara.com> 00187 Created: 30/03/94 00188 Purpose: Definition of a colour, stored to high (128-bit) precision. 00189 DocColours in the Document may refer to IndexedColour objects 00190 from which they are defined. 00191 00192 IndexedColours are used in two forms: Named and Unnamed. The former 00193 are held in a list for each document, and appear in the colour line/bar. 00194 The latter do not appear in the user interface (except when editing 00195 the colour of an object). They are stored in a separate list in the 00196 ColourList for the document 00197 00198 NOTE That if an UNNAMED IndexedColour's usage count is decremented to zero, 00199 it will automatically delete itself. Named colours must be explicitly 00200 deleted. 00201 00202 SeeAlso: DocColour; ColourModel; ColourContext; ColourList 00203 Documentation: HowToUse\colours.doc 00204 00205 ********************************************************************************************/ 00206 00207 class CCAPI IndexedColour : public ListItem 00208 { 00209 friend class ColourContext; 00210 friend class DocColour; 00211 friend class ColourPicker; 00212 00213 CC_DECLARE_DYNAMIC(IndexedColour) 00214 00215 public: // Construction/Destruction 00216 IndexedColour(); 00217 ~IndexedColour(); 00218 00219 // Initialising/Copy Constructors 00220 IndexedColour(const IndexedColour& Col); 00221 00222 IndexedColour(const DocColour& Col); 00223 00224 IndexedColour(ColourModel ColModel, ColourGeneric *Col); 00225 00226 IndexedColour(ColourValue Red, ColourValue Green, ColourValue Blue, 00227 ColourValue Transparent = 0, UINT32 TransType = TRANSTYPE_DEFAULT); 00228 00229 IndexedColour& operator=(const IndexedColour&); 00230 00231 00232 public: // Interface 00233 void SetName(const StringBase &Name, BOOL ForceNamed = TRUE); 00234 // Forces a colour to be named, and sets the name 00235 void SetUnnamed(void); // Forces a colour to be unnamed, clears the name 00236 00237 String_64 *GetName(BOOL ReturnTrueID = FALSE); 00238 inline BOOL IsNamed(void); 00239 00240 void GetSourceColour(ColourGeneric *Result); 00241 00242 BOOL IsDifferent(const IndexedColour &Other); 00243 BOOL IsDifferent(const IndexedColour &Other, FIXED24 ErrorLimit); 00244 00245 ColourModel GetColourModel(void) const; 00246 00247 inline void IncrementUsage(void); 00248 inline BOOL DecrementUsage(void); 00249 inline BOOL IsInUse(BOOL IgnoreColourGallery = FALSE); 00250 00251 inline BOOL IsDeleted(void); 00252 inline void SetDeleted(BOOL DeletedFlag); 00253 00254 inline void InvalidateCache(void); 00255 00256 IndexedColourType GetType(void) const; 00257 00258 BOOL IsSpotOrTintOfSpot(void) const; 00259 00260 IndexedColour *FindLinkedParent(void); 00261 IndexedColour *FindOldestAncestor(void); 00262 inline BOOL HasLinkedChildren(void); 00263 BOOL IsADescendantOf(IndexedColour *Parent); 00264 inline void LinkedAncestorHasChanged(void); 00265 00266 void SetLinkedParent(IndexedColour *Parent, IndexedColourType NewType = COLOURTYPE_LINKED); 00267 00268 inline IndexedColour *FindLastLinkedParent(void); 00269 00270 BOOL SetInheritsComponent(UINT32 ComponentID, BOOL Inherits); 00271 BOOL InheritsComponent(UINT32 ComponentID); 00272 00273 void SetTintValue(FIXED24 NewTintValue); 00274 FIXED24 GetTintValue(void) const; 00275 FIXED24 GetAccumulatedTintValue(void); 00276 00277 void SetShadeValues(FIXED24 NewShadeValueX, FIXED24 NewShadeValueY); 00278 FIXED24 GetShadeValueX(void) const; 00279 FIXED24 GetShadeValueY(void) const; 00280 00281 void SetTintOrShade(BOOL IsATint); // Set this tint to be a Tint (TRUE) or Shade (FALSE) 00282 BOOL TintIsShade(void) const; // Returns TRUE if it's a Shade, FALSE if it's a Tint 00283 00284 void SwapWith(IndexedColour *Other); 00285 00286 void GetDebugDetails(StringBase* Str); 00287 00288 00289 public: // Special global overrides - use with great care 00290 static BOOL AreSpotsForcedToProcess(void) { return(SpotsAreProcess); }; 00291 static void ForceSpotsToBeProcess(BOOL ForceOn); 00292 00293 00294 protected: // IndexedColour data members 00295 IndexedColourInfo Info; // Flags word 00296 ColourGeneric SourceColour; // Source colour definition 00297 ColourGeneric CachedColour; // Cached output colour 00298 00299 IndexedColour *ParentColour; // NULL, or parent of a based-on colour 00300 DWORD ChildUsage; // Number of ParentColour refs from other colours 00301 00302 DWORD UsageCount; // Number of refs to this colour 00303 00304 String_64 *Name; // NULL, or pointer to colours name 00305 00306 00307 protected: // Internal and friend class access methods 00308 // Internal initialisation method (shared code) 00309 void InitialiseInfoFields(ColourModel ColModel); 00310 00311 // Functions to be used only between IndexedColours 00312 inline void IncrementChildUsage(void); 00313 inline BOOL DecrementChildUsage(void); 00314 00315 BOOL SetType(IndexedColourType NewType); 00316 00317 // functions to access private data members - intended only for use by 00318 // our friend classes ColourContext and ColourPicker. Functions are used 00319 // to still provide some measure of data encapsulation. 00320 // NOTE: Remember when changing the colour definition, you must InvalidateCache 00321 inline void SetSourceColourModel(ColourModel NewModel); 00322 inline ColourGeneric *SourceColourPtr(void); 00323 00324 private: 00325 static BOOL SpotsAreProcess; // GLOBAL override - all spots are forced "normal" 00326 }; 00327 00328 00329 typedef IndexedColour *IndexedColourPtr; 00330 00331 00332 00333 /******************************************************************************************** 00334 00335 < INDEXEDCOLOUR_RGBT(col) 00336 < INDEXEDCOLOUR_HSVT(col) 00337 < INDEXEDCOLOUR_CMYK(col) 00338 < INDEXEDCOLOUR_CIET(col) 00339 < INDEXEDCOLOUR_GREYT(col) 00340 00341 Comment: These macros simplify construction of IndexedColour objects in 00342 given colour models. Use something like this: 00343 00344 MonoOn 00345 { 00346 ColourRGBT TheDefinition; 00347 IndexedColour TheColour = INDEXEDCOLOURRGBT(&TheDefinition); 00348 } 00349 MonoOff 00350 00351 Notes: Note that these macros explicitly cast 'col' to a 00352 (ColourGeneric *), so if it is not a pointer to a 128-bit 00353 colour structure (ColourGeneric, ColourRGBT, ColourCIET etc) 00354 then nasty things may occur. 00355 00356 SeeAlso: IndexedColour::IndexedColour 00357 00358 ********************************************************************************************/ 00359 00360 #define INDEXEDCOLOUR_RGBT(col) IndexedColour(COLOURMODEL_RGBT, (ColourGeneric *)(col)) 00361 #define INDEXEDCOLOUR_CMYK(col) IndexedColour(COLOURMODEL_CMYK, (ColourGeneric *)(col)) 00362 #define INDEXEDCOLOUR_HSVT(col) IndexedColour(COLOURMODEL_HSVT, (ColourGeneric *)(col)) 00363 #define INDEXEDCOLOUR_CIET(col) IndexedColour(COLOURMODEL_CIET, (ColourGeneric *)(col)) 00364 #define INDEXEDCOLOUR_GREYT(col) IndexedColour(COLOURMODEL_GREYT, (ColourGeneric *)(col)) 00365 00366 00367 00368 00369 /******************************************************************************************** 00370 00371 > inline void IndexedColour::IncrementUsage(void) 00372 00373 Author: Jason_Williams (Xara Group Ltd) <camelotdev@xara.com> 00374 Created: 30/03/94 00375 Inputs: - 00376 Outputs: - 00377 Returns: - 00378 Purpose: Informs the IndexedColour that yet another thing is referencing it. 00379 An IndexedColour should not be deleted if its usage count != 0 00380 A non-zero usage count on exit will generate ENSUREs which usually signal 00381 memory leaks or people forgetting to link/delink themselves properly. 00382 Errors: - 00383 SeeAlso: IndexedColour::DecrementUsage; IndexedColour::IsInUse 00384 00385 ********************************************************************************************/ 00386 00387 void IndexedColour::IncrementUsage(void) 00388 { 00389 UsageCount++; 00390 } 00391 00392 00393 00394 /******************************************************************************************** 00395 00396 > inline BOOL IndexedColour::DecrementUsage(void) 00397 00398 Author: Jason_Williams (Xara Group Ltd) <camelotdev@xara.com> 00399 Created: 30/03/94 00400 Inputs: - 00401 Outputs: - 00402 Returns: FALSE if the IndexedColour is not in use (can be safely deleted) 00403 TRUE if the IndexedColour is in use 00404 00405 Purpose: Informs the IndexedColour that a client is no longer referencing it. 00406 An IndexedColour should not be deleted if its usage count != 0 00407 00408 Errors: - 00409 SeeAlso: IndexedColour::IncrementUsage; IndexedColour::IsInUse 00410 00411 ********************************************************************************************/ 00412 00413 BOOL IndexedColour::DecrementUsage(void) 00414 { 00415 ENSURE(UsageCount > 0, "IndexedColour::DecrementUsage - UsageCount has gone NEGATIVE!"); 00416 00417 return((--UsageCount) != 0); 00418 } 00419 00420 00421 00422 /******************************************************************************************** 00423 00424 > inline BOOL IndexedColour::IsInUse( [BOOL IgnoreColourGallery = FALSE] ) 00425 00426 Author: Jason_Williams (Xara Group Ltd) <camelotdev@xara.com> 00427 Created: 30/03/94 00428 00429 Inputs: [IgnoreColourGallery - INTERNAL paramter for Colour SuperGallery ONLY] 00430 [LEAVE THIS PARAMETER OUT!] 00431 00432 Outputs: - 00433 Returns: FALSE if the IndexedColour can safely be deleted 00434 TRUE if the IndexedColour is in use 00435 Purpose: To determine if anything references this IndexedColour 00436 (An IndexedColour must not be deleted if it is in use) 00437 00438 Notes: This is a simple usage count, and does not handle references 00439 from undo-system hidden nodes etc. This simply records how many 00440 things hold pointers to this IndexedColour object. 00441 Errors: - 00442 SeeAlso: IndexedColour::IncrementUsage; IndexedColour::DecrementUsage 00443 00444 ********************************************************************************************/ 00445 00446 BOOL IndexedColour::IsInUse(BOOL IgnoreColourGallery) 00447 { 00448 // If this item is referenced in the colour gallery, the gallery needs to know if 00449 // nobody *else* is using the colour (i.e. if it has more than 1 user) 00450 if (IgnoreColourGallery) 00451 return(UsageCount > 1); 00452 00453 // Under normal circumstances, the colour is in use if anybody is using it 00454 return(UsageCount != 0); 00455 } 00456 00457 00458 00459 /******************************************************************************************** 00460 00461 > inline void IndexedColour::IncrementChildUsage(void) 00462 00463 Author: Jason_Williams (Xara Group Ltd) <camelotdev@xara.com> 00464 Created: 17/11/94 00465 Inputs: - 00466 Outputs: - 00467 Returns: - 00468 Purpose: Informs the IndexedColour that yet another thing is referencing it. 00469 An IndexedColour must not be deleted if its usage count != 0 00470 Scope: private 00471 Errors: - 00472 SeeAlso: IndexedColour::DecrementChildUsage; IndexedColour::HasLinkedChildren 00473 00474 ********************************************************************************************/ 00475 00476 void IndexedColour::IncrementChildUsage(void) 00477 { 00478 ENSURE(IsNamed(), "Attempt to increment child usage of an UNNAMED colour!"); 00479 ChildUsage++; 00480 } 00481 00482 00483 00484 /******************************************************************************************** 00485 00486 > inline BOOL IndexedColour::DecrementChildUsage(void) 00487 00488 Author: Jason_Williams (Xara Group Ltd) <camelotdev@xara.com> 00489 Created: 17/11/94 00490 Inputs: - 00491 Outputs: - 00492 Returns: FALSE if the IndexedColour is not in use (can be safely deleted) 00493 TRUE if the IndexedColour is in use 00494 00495 Purpose: Informs the IndexedColour that a client is no longer referencing it. 00496 An IndexedColour should not be deleted if its usage count != 0 00497 Scope: private 00498 00499 Errors: - 00500 SeeAlso: IndexedColour::IncrementChildUsage; IndexedColour::HasLinkedChildren 00501 00502 ********************************************************************************************/ 00503 00504 BOOL IndexedColour::DecrementChildUsage(void) 00505 { 00506 ENSURE(IsNamed(), "Attempt to decrement child usage of an UNNAMED colour!"); 00507 00508 ENSURE(ChildUsage > 0, "IndexedColour::DecrementChildUsage - UsageCount has gone NEGATIVE!"); 00509 00510 return((--ChildUsage) != 0); 00511 } 00512 00513 00514 00515 /******************************************************************************************** 00516 00517 > inline BOOL IndexedColour::HasLinkedChildren(void) 00518 00519 Author: Jason_Williams (Xara Group Ltd) <camelotdev@xara.com> 00520 Created: 17/11/94 00521 Inputs: - 00522 Outputs: - 00523 Returns: TRUE if the IndexedColour is in use (as a ParentColour) by other IndexedCols 00524 Purpose: To determine if any other IndexedColour references this IndexedColour 00525 (An IndexedColour must not be deleted if it is in use) 00526 00527 Notes: This is a simple usage count, and does not handle references 00528 from undo-system hidden nodes etc. This simply records how many 00529 other IndexedColours hold ParentColour pointers to this IndexedColour. 00530 Errors: - 00531 SeeAlso: IndexedColour::IncrementChildUsage; IndexedColour::DecrementChildUsage 00532 00533 ********************************************************************************************/ 00534 00535 BOOL IndexedColour::HasLinkedChildren(void) 00536 { 00537 return(ChildUsage != 0); 00538 } 00539 00540 00541 00542 /******************************************************************************************** 00543 00544 > inline BOOL IndexedColour::IsDeleted(void) 00545 00546 Author: Jason_Williams (Xara Group Ltd) <camelotdev@xara.com> 00547 Created: 3/6/94 00548 Inputs: - 00549 Outputs: - 00550 Returns: TRUE if this colour is marked 'deleted' 00551 FALSE if it is not 00552 Purpose: To determine if this colour has been marked 'deleted'. This is used 00553 for undo, to hide colours which have been 'deleted'. 00554 Errors: - 00555 SeeAlso: IndexedColour::SetDeleted 00556 00557 ********************************************************************************************/ 00558 00559 BOOL IndexedColour::IsDeleted(void) 00560 { 00561 return(Info.Deleted); 00562 } 00563 00564 00565 00566 /******************************************************************************************** 00567 00568 > inline void IndexedColour::SetDeleted(BOOL DeletedFlag) 00569 00570 Author: Jason_Williams (Xara Group Ltd) <camelotdev@xara.com> 00571 Created: 3/6/94 00572 Inputs: - 00573 Outputs: - 00574 Returns: - 00575 Purpose: This marks/unmarks a colour as 'deleted'. This flag is used 00576 for undo, to hide colours which have been 'deleted'. Remember 00577 that this constitutes a change to the colour, so you should call 00578 ColourManager::ColourListHasChanged, to ensure that the Colour 00579 dialogues update all displayed lists to show/not-show this colour. 00580 Scope: Only intended for internal ColourManager use 00581 Notes: Used by the undoable ColourManager OpColourChange. You should use 00582 colour manager calls to delete colours rather than touching them 00583 directly. Note that you can 'delete'/'undelete' colours even when 00584 they are deemed 'In Use'. 00585 Errors: - 00586 SeeAlso: IndexedColour::IsInUse; IndexedColour::IsDeleted; 00587 ColourManager::ColourHasChanged 00588 00589 ********************************************************************************************/ 00590 00591 void IndexedColour::SetDeleted(BOOL DeletedFlag) 00592 { 00593 Info.Deleted = DeletedFlag; 00594 } 00595 00596 00597 00598 /******************************************************************************************** 00599 00600 > inline void IndexedColour::InvalidateCache(void) 00601 00602 Author: Jason_Williams (Xara Group Ltd) <camelotdev@xara.com> 00603 Created: 13/05/94 00604 Inputs: - 00605 Outputs: - 00606 Returns: - 00607 Purpose: Invalidates the IndexedColours output colour cache. This ensures that 00608 the colour is re-converted and cached the next time it is used. 00609 Scope: Generally private; All public access functions invalidate the cache 00610 automatically if it is necessary (if the colour changes) 00611 Errors: - 00612 SeeAlso: - 00613 00614 ********************************************************************************************/ 00615 00616 void IndexedColour::InvalidateCache(void) 00617 { 00618 Info.CacheColourModel = COLOURMODEL_NOTCACHED; 00619 Info.OCContextHandle = 0; 00620 } 00621 00622 00623 00624 /******************************************************************************************** 00625 00626 > inline void IndexedColour::LinkedAncestorHasChanged(void) 00627 00628 Author: Jason_Williams (Xara Group Ltd) <camelotdev@xara.com> 00629 Created: 13/05/94 00630 Inputs: - 00631 Outputs: - 00632 Returns: - 00633 Purpose: Informs an IndexedColour that an ancestor in the linking chain has changed, 00634 and that therefore, it may also have changed. 00635 00636 The ColourManager automatically calls this function for all affected 00637 colours whenever it recieves a ColourChangingMsg COLOURUPDATED, so it should 00638 never be necessary for anyone other than ColourManager to call this function. 00639 00640 Notes: Currently this simply invalidates the cache to make the next access update 00641 the colour from its Parent(s). A separate function has been used just in case 00642 we change our minds about how this should be done in the future. 00643 Errors: - 00644 SeeAlso: - 00645 00646 ********************************************************************************************/ 00647 00648 void IndexedColour::LinkedAncestorHasChanged(void) 00649 { 00650 InvalidateCache(); 00651 } 00652 00653 00654 00655 /******************************************************************************************** 00656 00657 > void IndexedColour::SetSourceColourModel(ColourModel NewModel) 00658 00659 Author: Jason_Williams (Xara Group Ltd) <camelotdev@xara.com> 00660 Created: 13/05/94 00661 Inputs: - 00662 Outputs: - 00663 Returns: - 00664 Purpose: Sets our colour model number, and invalidates the colour cache 00665 Scope: Private, for use by friend classes only 00666 Errors: - 00667 SeeAlso: - 00668 00669 ********************************************************************************************/ 00670 00671 void IndexedColour::SetSourceColourModel(ColourModel NewModel) 00672 { 00673 // Set the new colour model 00674 Info.SourceColourModel = NewModel; 00675 00676 // And invalidate the cache... 00677 Info.CacheColourModel = COLOURMODEL_NOTCACHED; 00678 Info.OCContextHandle = 0; 00679 } 00680 00681 00682 00683 /******************************************************************************************** 00684 00685 > inline ColourDefn *IndexedColour::SourceColourPtr(void); 00686 00687 Author: Jason_Williams (Xara Group Ltd) <camelotdev@xara.com> 00688 Created: 12/04/94 00689 Inputs: - 00690 Outputs: - 00691 Returns: A pointer to our source colour. Note that this is our source colour 00692 so it would be appreciated if you'd not trample all over it with 00693 hob nailed boots. 00694 Purpose: Returns a pointer to our source colour. 00695 Used to encapsulate our data for external friend users, rather 00696 than them poking directly at our data structures. Inlined, so 00697 just as efficient anyway. 00698 Scope: Private, for use by friend class ColourContext 00699 Errors: - 00700 SeeAlso: - 00701 00702 ********************************************************************************************/ 00703 00704 ColourGeneric *IndexedColour::SourceColourPtr(void) 00705 { 00706 return(&SourceColour); 00707 } 00708 00709 00710 00711 /******************************************************************************************** 00712 00713 > inline BOOL IndexedColour::IsNamed(void) 00714 00715 Author: Jason_Williams (Xara Group Ltd) <camelotdev@xara.com> 00716 Created: 29/9/94 00717 Returns: TRUE if this colour is named (GetName will return this name) 00718 FALSE if this colour is not named (GetName will return a string like 00719 "Unnamed colour" if this is the case) 00720 00721 Purpose: Determines if this colour has been given a name. This cannot be determined 00722 using the GetName function, which returns a default name if the colour is 00723 unnamed. 00724 00725 SeeAlso: IndexedColour::SetName; IndexedColour::GetName 00726 00727 ********************************************************************************************/ 00728 00729 BOOL IndexedColour::IsNamed(void) 00730 { 00731 return((Info.IsNamed) ? TRUE : FALSE); // **** !!!! TEMPORARY BODGE! 00732 //return(Name != NULL); 00733 } 00734 00735 00736 00737 /******************************************************************************************** 00738 00739 > inline IndexedColour *IndexedColour::FindLastLinkedParent(void) 00740 00741 Author: Jason_Williams (Xara Group Ltd) <camelotdev@xara.com> 00742 Created: 1/11/94 00743 Returns: The parent 'linked' colour of this colour. This will be NULL if the 00744 colour is not linked to another. 00745 00746 Purpose: Finds the last parent colour of this colour. Note that after changing a 00747 linked/tint colour back into a normal/spot colour, the parent is 00748 remembered. This call thus returns the parent even when the colour 00749 is no longer a linked/tint colour. Intended only for use by the colour 00750 editor to allow temporary type chnages to not lose the parent link info. 00751 The colour editor probably clears the parent colour on exit. 00752 00753 YOU SHOULD NOT BE USING THIS FUNCTION unless absolutely necessary. Use 00754 FindLinkedParent instead. 00755 00756 SeeAlso: IndexedColour::FindLinkedParent 00757 00758 ********************************************************************************************/ 00759 00760 IndexedColour *IndexedColour::FindLastLinkedParent(void) 00761 { 00762 return(ParentColour); 00763 } 00764 00765 00766 #endif // INC_COLOURIX 00767