SnapShotItem Class Reference

Defines what is saved during a current attribute snap shot. More...

#include <filters.h>

Inheritance diagram for SnapShotItem:


Public Member Functions
	SnapShotItem ()
	Construct a SnapShotItem to record a list of current attributes.
	~SnapShotItem ()
	Destroy a SnapShotItem - removes all allocated arrays.
INT32	Initialise (AttributeEntry *CurrAttrs)
	This function grabs a snap shot of the described attributes list.
Private Member Functions
	CC_DECLARE_MEMDUMP (SnapShotItem)
Private Attributes
NodeAttribute **	SnapShotAttrs
AttributeEntry *	SnapShotAttrsStack
Friends
class	SnapShotList

Detailed Description

Defines what is saved during a current attribute snap shot.

Author:: Mike_Kenny (Xara Group Ltd) <camelotdev@xara.com>

Date:: 27/10/95

Definition at line 325 of file filters.h.

Constructor & Destructor Documentation

SnapShotItem::SnapShotItem ( )

Construct a SnapShotItem to record a list of current attributes.

Author:
Mike_Kenny (Xara Group Ltd) <camelotdev@xara.com>

Date:
16/10/95

Parameters:

- [INPUTS]

Returns:
-

Definition at line 5475 of file filters.cpp.
05476 { 05477 SnapShotAttrs = NULL; 05478 SnapShotAttrsStack = NULL; 05479 }

SnapShotItem::~SnapShotItem ( )

Destroy a SnapShotItem - removes all allocated arrays.

Author:
Mike_Kenny (Xara Group Ltd) <camelotdev@xara.com>

Date:
16/10/95

Parameters:

- [INPUTS]

Returns:
-

Definition at line 5494 of file filters.cpp.
05495 { 05496 if (SnapShotAttrs!=NULL) 05497 { 05498 INT32 i, NumAttrs = AttributeManager::GetNumAttributes(); 05499 for (i=0; i<NumAttrs; i++) 05500 { 05501 if (SnapShotAttrs[i] != NULL) 05502 { 05503 delete SnapShotAttrs[i]; 05504 SnapShotAttrs[i]=NULL; 05505 } 05506 } 05507 CCFree(SnapShotAttrs); 05508 SnapShotAttrs=NULL; 05509 } 05510 05511 if (SnapShotAttrsStack!=NULL) 05512 { 05513 CCFree(SnapShotAttrsStack); 05514 SnapShotAttrsStack=NULL; 05515 } 05516 }

Member Function Documentation

SnapShotItem::CC_DECLARE_MEMDUMP ( SnapShotItem ) [private]

BOOL SnapShotItem::Initialise ( AttributeEntry * CurrAttrs )

This function grabs a snap shot of the described attributes list.

Author:
Mike_Kenny (Xara Group Ltd) <camelotdev@xara.com>

Date:
16/10/95

Parameters:

CurrAttrs = a pointer to a list of attributeentry items. There [INPUTS] as usual should be AttributeManager::NumAttributes() of them

Returns:
TRUE if able to initialise this snapshot item FALSE if not

Definition at line 5533 of file filters.cpp.
05534 { 05535 INT32 i, NumAttrs = AttributeManager::GetNumAttributes(); 05536 05537 SnapShotAttrs = (NodeAttribute**)CCMalloc(NumAttrs*sizeof(NodeAttribute*)); 05538 if (SnapShotAttrs==NULL) 05539 return FALSE; 05540 05541 SnapShotAttrsStack = (AttributeEntry*)CCMalloc(NumAttrs*sizeof(AttributeEntry)); 05542 if (SnapShotAttrsStack==NULL) 05543 { 05544 CCFree(SnapShotAttrs); 05545 SnapShotAttrs=NULL; 05546 return FALSE; 05547 } 05548 05549 // store the temp values 05550 for (i=0; i<NumAttrs; i++) 05551 { 05552 // of course the following MakeNode may fail, but it just sets 05553 // the SnapShotAttrs ptr to NULL which we MUST check (and do) later on 05554 SnapShotAttrs[i] = (CurrAttrs[i].pAttr)->MakeNode(); 05555 05556 SnapShotAttrsStack[i].pAttr = NULL; 05557 SnapShotAttrsStack[i].Temp = FALSE; 05558 SnapShotAttrsStack[i].Ignore = TRUE; 05559 } 05560 05561 return TRUE; 05562 }