100 lines
2.1 KiB
C++
Executable File
100 lines
2.1 KiB
C++
Executable File
/**
|
|
* @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
|