/indra/llcommon/lldepthstack.h
C++ Header | 99 lines | 61 code | 12 blank | 26 comment | 2 complexity | ef27ddac0a06e9853568279ac229f842 MD5 | raw file
Possible License(s): LGPL-2.1
- /**
- * @file lldepthstack.h
- * @brief Declaration of the LLDepthStack class
- *
- * $LicenseInfo:firstyear=2001&license=viewerlgpl$
- * Second Life Viewer Source Code
- * Copyright (C) 2010, Linden Research, Inc.
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation;
- * version 2.1 of the License only.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- *
- * Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA
- * $/LicenseInfo$
- */
- #ifndef LL_LLDEPTHSTACK_H
- #define LL_LLDEPTHSTACK_H
- #include "linked_lists.h"
- template <class DATA_TYPE> class LLDepthStack
- {
- private:
- LLLinkedList<DATA_TYPE> mStack;
- U32 mCurrentDepth;
- U32 mMaxDepth;
- public:
- LLDepthStack() : mCurrentDepth(0), mMaxDepth(0) {}
- ~LLDepthStack() {}
- void setDepth(U32 depth)
- {
- mMaxDepth = depth;
- }
- U32 getDepth(void) const
- {
- return mCurrentDepth;
- }
- void push(DATA_TYPE *data)
- {
- if (mCurrentDepth < mMaxDepth)
- {
- mStack.addData(data);
- mCurrentDepth++;
- }
- else
- {
- // the last item falls off stack and is deleted
- mStack.getLastData();
- mStack.deleteCurrentData();
- mStack.addData(data);
- }
- }
-
- DATA_TYPE *pop()
- {
- DATA_TYPE *tempp = mStack.getFirstData();
- if (tempp)
- {
- mStack.removeCurrentData();
- mCurrentDepth--;
- }
- return tempp;
- }
-
- DATA_TYPE *check()
- {
- DATA_TYPE *tempp = mStack.getFirstData();
- return tempp;
- }
-
- void deleteAllData()
- {
- mCurrentDepth = 0;
- mStack.deleteAllData();
- }
-
- void removeAllNodes()
- {
- mCurrentDepth = 0;
- mStack.removeAllNodes();
- }
- };
- #endif