зеркало из https://github.com/mozilla/gecko-dev.git
103 строки
2.6 KiB
C++
103 строки
2.6 KiB
C++
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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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*
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* The contents of this file are subject to the Netscape Public License
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* Version 1.0 (the "NPL"); you may not use this file except in
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* compliance with the NPL. You may obtain a copy of the NPL at
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* http://www.mozilla.org/NPL/
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*
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* Software distributed under the NPL is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
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* for the specific language governing rights and limitations under the
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* NPL.
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*
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* The Initial Developer of this code under the NPL is Netscape
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* Communications Corporation. Portions created by Netscape are
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* Copyright (C) 1998 Netscape Communications Corporation. All Rights
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* Reserved.
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*/
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#include "nsCRT.h"
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#include "nsCellMap.h"
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#include "nsTablePart.h"
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#include <stdio.h>/* XXX */ // for printf
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#ifdef NS_DEBUG
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static PRBool gsDebug1 = PR_FALSE;
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#else
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static const PRBool gsDebug1 = PR_FALSE;
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#endif
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static PRInt32 gBytesPerPointer = sizeof(PRInt32);
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nsCellMap::nsCellMap(int aRows, int aColumns)
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: mRowCount(aRows),
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mColCount(aColumns)
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{
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mCells = nsnull;
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Reset(aRows, aColumns);
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}
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nsCellMap::~nsCellMap()
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{
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for (int i=0;i<mRowCount;i++)
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{
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for (int j=0;j<mColCount;j++)
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{
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int index = (i*mColCount)+j;
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CellData* data = (CellData*)mCells[index];
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if (data != nsnull)
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{
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delete data;
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mCells[index] = 0;
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}
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}
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}
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delete [] mCells;
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mCells = nsnull;
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};
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void nsCellMap::Reset(int aRows, int aColumns)
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{
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// needs to be more efficient, to reuse space if possible
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if (nsnull!=mCells)
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{
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delete [] mCells;
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mCells = nsnull;
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}
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mRowCount = aRows;
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mColCount = aColumns;
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mCells = new PRInt32 [mRowCount*mColCount*gBytesPerPointer];
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nsCRT::memset (mCells, 0, (mRowCount*mColCount)*gBytesPerPointer);
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}
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void nsCellMap::GrowTo(int aColCount)
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{
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if (aColCount <= mColCount)
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return;
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PRInt32 * newCells = new PRInt32 [mRowCount*aColCount*gBytesPerPointer];
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for (int rowIndex = 0; rowIndex < mRowCount; rowIndex++)
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{
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PRInt32* rowMap = (PRInt32*)&(newCells[rowIndex*aColCount]);
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nsCRT::memset (rowMap, 0, aColCount*gBytesPerPointer);
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nsCRT::memcpy(rowMap, &(mCells[rowIndex*mColCount]), mColCount*gBytesPerPointer);
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}
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if (mCells != nsnull)
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delete [] mCells;
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mCells = newCells;
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mColCount = aColCount;
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}
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void nsCellMap::DumpCellMap() const
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{
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if (gsDebug1==PR_TRUE)
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{
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printf("Cell Map =\n");
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for (int i=0;i<mRowCount;i++)
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for (int j=0;j<mColCount;j++)
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{
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int index = (i*mColCount)+j;
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printf("Cell [%d,%d] = %d for index = %d\n", i, j, mCells[index], index);
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}
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}
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}
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