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The SoAccumulatedElement class is an abstract class for storing accumulated state.This is the superclass of elements where new element data accumulates with older data. More...
#include <Inventor/elements/SoAccumulatedElement.h>
Public Member Functions | |
virtual SbBool | matches (const SoElement *element) const |
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const SoType | getTypeId (void) const |
int | getStackIndex (void) const |
virtual void | pop (SoState *state, const SoElement *prevTopElement) |
void | setDepth (const int depth) |
int | getDepth (void) const |
virtual void | print (FILE *file=stdout) const |
virtual | ~SoElement () |
Static Public Member Functions | |
static SoType | getClassTypeId (void) |
static int | getClassStackIndex (void) |
static void | initClass (void) |
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static void | initClass (void) |
static SoType | getClassTypeId (void) |
static int | getClassStackIndex (void) |
static void | initElements (void) |
static int | getNumStackIndices (void) |
static SoType | getIdFromStackIndex (const int stackIndex) |
Protected Member Functions | |
void | init (SoState *state) |
void | push (SoState *state) |
void | clearNodeIds (void) |
void | addNodeId (const SoNode *const node) |
void | setNodeId (const SoNode *const node) |
void | copyNodeIds (const SoAccumulatedElement *copyfrom) |
virtual SoElement * | copyMatchInfo (void) const |
virtual void | captureThis (SoState *state) const |
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SoElement (void) | |
void | capture (SoState *const state) const |
void | setTypeId (const SoType typeId) |
void | setStackIndex (const int index) |
SoElement * | getNextInStack (void) const |
SoElement * | getNextFree (void) const |
Protected Attributes | |
SbList< uint32_t > | nodeIds |
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SoType | typeId |
int | stackIndex |
int | depth |
Additional Inherited Members | |
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static SoElement * | getElement (SoState *const state, const int stackIndex) |
static const SoElement * | getConstElement (SoState *const state, const int stackIndex) |
static int | createStackIndex (const SoType id) |
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static int | classStackIndex |
static SoTypeList * | stackToType |
The SoAccumulatedElement class is an abstract class for storing accumulated state.
This is the superclass of elements where new element data accumulates with older data.
The element stores node id values for all nodes accumulated during traversal for the current state. These id values are used to determine when to invalidate caches.
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virtual |
This function returns TRUE
is the element matches another element (of the same class), with respect to cache validity.
If the application programmer's extension element has a matches() function, it should also have a copyMatchInfo() function.
Implements SoElement.
References nodeIds.
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protectedvirtual |
This function initializes the element type in the given SoState. It is called for the first element of each enabled element type in SoState objects.
Reimplemented from SoElement.
References SoElement::init().
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protectedvirtual |
This method is called every time a new element is required in one of the stacks. This happens when a writable element is requested, using SoState::getElement() or indirectly SoElement::getElement(), and the depth of the current element is less than the state depth.
Override this method if your element needs to copy data from the previous top of stack. The push() method is called on the new element, and the previous element can be found using SoElement::getNextInStack().
Reimplemented from SoElement.
References SoElement::push().
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protected |
Empty the list of node ids.
References nodeIds, and SbList< Type >::truncate().
Referenced by setNodeId().
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Add the node id of node to the list of node ids.
References SbList< Type >::append(), SoNode::getNodeId(), and nodeIds.
Referenced by setNodeId().
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Empty the list of node ids, and add the id of node.
References addNodeId(), and clearNodeIds().
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Convenience method which copies the node ids from copyfrom to this element.
This function is an extension for Coin, and it is not available in the original SGI Open Inventor v2.1 API.
References nodeIds.
Referenced by copyMatchInfo().
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protectedvirtual |
This function creates a copy of the element that contains enough information to enable the matches() function to work.
Used to help with scenegraph traversal caching operations.
Implements SoElement.
References copyNodeIds(), SoType::createInstance(), and SoElement::getTypeId().
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protectedvirtual |
Adds the element to the cache.
Reimplemented from SoElement.
References captureThis(), SoElement::captureThis(), and SoElement::getNextInStack().
Referenced by captureThis().
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protected |
Stores the internal list of node id values for nodes accumulated on the stack for the element.
Referenced by addNodeId(), clearNodeIds(), copyNodeIds(), and matches().
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