LCOV - code coverage report
Current view: directory - layout/generic - nsIntervalSet.cpp (source / functions) Found Hit Coverage
Test: app.info Lines: 48 0 0.0 %
Date: 2012-06-02 Functions: 6 0 0.0 %

       1                 : /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
       2                 : // vim:cindent:ts=8:et:sw=4:
       3                 : /* ***** BEGIN LICENSE BLOCK *****
       4                 :  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
       5                 :  *
       6                 :  * The contents of this file are subject to the Mozilla Public License Version
       7                 :  * 1.1 (the "License"); you may not use this file except in compliance with
       8                 :  * the License. You may obtain a copy of the License at
       9                 :  * http://www.mozilla.org/MPL/
      10                 :  *
      11                 :  * Software distributed under the License is distributed on an "AS IS" basis,
      12                 :  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
      13                 :  * for the specific language governing rights and limitations under the
      14                 :  * License.
      15                 :  *
      16                 :  * The Original Code is nsIntervalSet. 
      17                 :  *
      18                 :  * The Initial Developer of the Original Code is Netscape Communications
      19                 :  * Corporation.  Portions created by the Initial Developer are Copyright
      20                 :  * (C) 2001 the Initial Developer. All Rights Reserved.
      21                 :  *
      22                 :  * Contributor(s):
      23                 :  *   L. David Baron <dbaron@dbaron.org> (original author)
      24                 :  *
      25                 :  * Alternatively, the contents of this file may be used under the terms of
      26                 :  * either the GNU General Public License Version 2 or later (the "GPL"), or
      27                 :  * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
      28                 :  * in which case the provisions of the GPL or the LGPL are applicable instead
      29                 :  * of those above. If you wish to allow use of your version of this file only
      30                 :  * under the terms of either the GPL or the LGPL, and not to allow others to
      31                 :  * use your version of this file under the terms of the MPL, indicate your
      32                 :  * decision by deleting the provisions above and replace them with the notice
      33                 :  * and other provisions required by the GPL or the LGPL. If you do not delete
      34                 :  * the provisions above, a recipient may use your version of this file under
      35                 :  * the terms of any one of the MPL, the GPL or the LGPL.
      36                 :  *
      37                 :  * ***** END LICENSE BLOCK ***** */
      38                 : 
      39                 : /* a set of ranges on a number-line */
      40                 : 
      41                 : #include "nsIntervalSet.h"
      42                 : #include "nsAlgorithm.h"
      43                 : #include NEW_H
      44                 : 
      45               0 : nsIntervalSet::nsIntervalSet(IntervalSetAlloc aAlloc, IntervalSetFree aFree,
      46                 :                              void* aAllocatorClosure)
      47                 :     : mList(nsnull),
      48                 :       mAlloc(aAlloc),
      49                 :       mFree(aFree),
      50               0 :       mAllocatorClosure(aAllocatorClosure)
      51                 : {
      52               0 :     NS_ASSERTION(mAlloc && mFree, "null callback params");
      53               0 : }
      54                 : 
      55               0 : nsIntervalSet::~nsIntervalSet()
      56                 : {
      57               0 :     Interval *current = mList;
      58               0 :     while (current) {
      59               0 :         Interval *trash = current;
      60               0 :         current = current->mNext;
      61               0 :         FreeInterval(trash);
      62                 :     }
      63               0 : }
      64                 : 
      65               0 : void nsIntervalSet::FreeInterval(nsIntervalSet::Interval *aInterval)
      66                 : {
      67               0 :     NS_ASSERTION(aInterval, "null interval");
      68                 : 
      69               0 :     aInterval->Interval::~Interval();
      70               0 :     (*mFree)(sizeof(Interval), aInterval, mAllocatorClosure);
      71               0 : }
      72                 : 
      73               0 : void nsIntervalSet::IncludeInterval(coord_type aBegin, coord_type aEnd)
      74                 : {
      75                 :     Interval *newInterval = static_cast<Interval*>
      76               0 :                                        ((*mAlloc)(sizeof(Interval), mAllocatorClosure));
      77               0 :     if (!newInterval) {
      78               0 :         NS_NOTREACHED("allocation failure");
      79               0 :         return;
      80                 :     }
      81               0 :     new(newInterval) Interval(aBegin, aEnd);
      82                 : 
      83               0 :     Interval **current = &mList;
      84               0 :     while (*current && (*current)->mEnd < aBegin)
      85               0 :         current = &(*current)->mNext;
      86                 : 
      87               0 :     newInterval->mNext = *current;
      88               0 :     *current = newInterval;
      89                 : 
      90               0 :     Interval *subsumed = newInterval->mNext;
      91               0 :     while (subsumed && subsumed->mBegin <= aEnd) {
      92               0 :         newInterval->mBegin = NS_MIN(newInterval->mBegin, subsumed->mBegin);
      93               0 :         newInterval->mEnd = NS_MAX(newInterval->mEnd, subsumed->mEnd);
      94               0 :         newInterval->mNext = subsumed->mNext;
      95               0 :         FreeInterval(subsumed);
      96               0 :         subsumed = newInterval->mNext;
      97                 :     }
      98                 : }
      99                 : 
     100               0 : bool nsIntervalSet::Intersects(coord_type aBegin, coord_type aEnd) const
     101                 : {
     102               0 :     Interval *current = mList;
     103               0 :     while (current && current->mBegin <= aEnd) {
     104               0 :         if (current->mEnd >= aBegin)
     105               0 :             return true;
     106               0 :         current = current->mNext;
     107                 :     }
     108               0 :     return false;
     109                 : }
     110                 : 
     111               0 : bool nsIntervalSet::Contains(coord_type aBegin, coord_type aEnd) const
     112                 : {
     113               0 :     Interval *current = mList;
     114               0 :     while (current && current->mBegin <= aBegin) {
     115               0 :         if (current->mEnd >= aEnd)
     116               0 :             return true;
     117               0 :         current = current->mNext;
     118                 :     }
     119               0 :     return false;
     120                 : }

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