bool SkAdd::enable(SkAnimateMaker& maker ) { SkDisplayTypes type = getType(); SkDisplayList& displayList = maker.fDisplayList; SkTDDrawableArray* parentList = displayList.getDrawList(); if (type == SkType_Add) { if (use == NULL) // not set in apply yet return true; } bool skipAddToParent = true; SkASSERT(type != SkType_Replace || where); SkTDDrawableArray* grandList SK_INIT_TO_AVOID_WARNING; SkGroup* parentGroup = NULL; SkGroup* thisGroup = NULL; int index = where ? displayList.findGroup(where, &parentList, &parentGroup, &thisGroup, &grandList) : 0; if (index < 0) return true; int max = parentList->count(); if (where == NULL && type == SkType_Move) index = max; if (offset != SK_MaxS32) { index += offset; if (index > max) { maker.setErrorCode(SkDisplayXMLParserError::kIndexOutOfRange); return true; // caller should not add } } if (offset < 0 && where == NULL) index += max + 1; switch (type) { case SkType_Add: if (offset == SK_MaxS32 && where == NULL) { if (use->isDrawable()) { skipAddToParent = mode == kMode_immediate; if (skipAddToParent) { if (where == NULL) { SkTDDrawableArray* useParentList; index = displayList.findGroup(this, &useParentList, &parentGroup, &thisGroup, &grandList); if (index >= 0) { parentGroup->markCopySize(index); parentGroup->markCopySet(index); useParentList->begin()[index] = use; break; } } *parentList->append() = use; } } break; } else { if (thisGroup) thisGroup->markCopySize(index); *parentList->insert(index) = use; if (thisGroup) thisGroup->markCopySet(index); if (use->isApply()) ((SkApply*) use)->setEmbedded(); } break; case SkType_Move: { int priorLocation = parentList->find(use); if (priorLocation < 0) break; *parentList->insert(index) = use; if (index < priorLocation) priorLocation++; parentList->remove(priorLocation); } break; case SkType_Remove: { SkDisplayable* old = (*parentList)[index]; if (((SkRemove*)(this))->fDelete) { delete old; goto noHelperNeeded; } for (int inner = 0; inner < maker.fChildren.count(); inner++) { SkDisplayable* child = maker.fChildren[inner]; if (child == old || child->contains(old)) goto noHelperNeeded; } if (maker.fHelpers.find(old) < 0) maker.helperAdd(old); noHelperNeeded: parentList->remove(index); } break; case SkType_Replace: if (thisGroup) { thisGroup->markCopySize(index); if (thisGroup->markedForDelete(index)) { SkDisplayable* old = (*parentList)[index]; if (maker.fHelpers.find(old) < 0) maker.helperAdd(old); } } (*parentList)[index] = use; if (thisGroup) thisGroup->markCopySet(index); break; default: SkASSERT(0); } if (type == SkType_Remove) return true; if (use->hasEnable()) use->enable(maker); return skipAddToParent; // append if indirect: *parentList->append() = this; }