LCOV - code coverage report
Current view: top level - include/basegfx/range - b1drange.hxx (source / functions) Hit Total Coverage
Test: commit 10e77ab3ff6f4314137acd6e2702a6e5c1ce1fae Lines: 30 32 93.8 %
Date: 2014-11-03 Functions: 13 14 92.9 %
Legend: Lines: hit not hit

          Line data    Source code
       1             : /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
       2             : /*
       3             :  * This file is part of the LibreOffice project.
       4             :  *
       5             :  * This Source Code Form is subject to the terms of the Mozilla Public
       6             :  * License, v. 2.0. If a copy of the MPL was not distributed with this
       7             :  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
       8             :  *
       9             :  * This file incorporates work covered by the following license notice:
      10             :  *
      11             :  *   Licensed to the Apache Software Foundation (ASF) under one or more
      12             :  *   contributor license agreements. See the NOTICE file distributed
      13             :  *   with this work for additional information regarding copyright
      14             :  *   ownership. The ASF licenses this file to you under the Apache
      15             :  *   License, Version 2.0 (the "License"); you may not use this file
      16             :  *   except in compliance with the License. You may obtain a copy of
      17             :  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
      18             :  */
      19             : 
      20             : #ifndef INCLUDED_BASEGFX_RANGE_B1DRANGE_HXX
      21             : #define INCLUDED_BASEGFX_RANGE_B1DRANGE_HXX
      22             : 
      23             : #include <basegfx/range/basicrange.hxx>
      24             : #include <basegfx/basegfxdllapi.h>
      25             : 
      26             : 
      27             : namespace basegfx
      28             : {
      29             :     class B1IRange;
      30             : 
      31             :     /** A one-dimensional interval over doubles
      32             : 
      33             :         This is a set of real numbers, bounded by a lower and an upper
      34             :         value. All inbetween values are included in the set (see also
      35             :         http://en.wikipedia.org/wiki/Interval_%28mathematics%29).
      36             : 
      37             :         The set is closed, i.e. the upper and the lower bound are
      38             :         included (if you're used to the notation - we're talking about
      39             :         [a,b] here, compared to half-open [a,b) or open intervals
      40             :         (a,b)).
      41             : 
      42             :         That means, isInside(val) will return true also for values of
      43             :         val=a or val=b.
      44             :      */
      45             :     class B1DRange
      46             :     {
      47             :         ::basegfx::BasicRange< double, DoubleTraits >   maRange;
      48             : 
      49             :     public:
      50           6 :         B1DRange() {}
      51             : 
      52             :         /// Create degenerate interval consisting of a single double number
      53             :         explicit B1DRange(double fStartValue)
      54             :         :   maRange(fStartValue)
      55             :         {
      56             :         }
      57             : 
      58             :         /// Create proper interval between the two given double values
      59     3331155 :         B1DRange(double fStartValue1, double fStartValue2)
      60     3331155 :         :   maRange(fStartValue1)
      61             :         {
      62     3331155 :             expand(fStartValue2);
      63     3331155 :         }
      64             : 
      65             :         /** Check if the interval set is empty
      66             : 
      67             :             @return false, if no value is in this set - having a
      68             :             single value included will already return true.
      69             :          */
      70           8 :         bool isEmpty() const
      71             :         {
      72           8 :             return maRange.isEmpty();
      73             :         }
      74             : 
      75             :         /// reset the object to empty state again, clearing all values
      76             :         void reset()
      77             :         {
      78             :             maRange.reset();
      79             :         }
      80             : 
      81             :         bool operator==( const B1DRange& rRange ) const
      82             :         {
      83             :             return (maRange == rRange.maRange);
      84             :         }
      85             : 
      86           0 :         bool operator!=( const B1DRange& rRange ) const
      87             :         {
      88           0 :             return (maRange != rRange.maRange);
      89             :         }
      90             : 
      91             :         bool equal(const B1DRange& rRange) const
      92             :         {
      93             :             return (maRange.equal(rRange.maRange));
      94             :         }
      95             : 
      96             :         /// get lower bound of the set. returns arbitrary values for empty sets.
      97         148 :         double getMinimum() const
      98             :         {
      99         148 :             return maRange.getMinimum();
     100             :         }
     101             : 
     102             :         /// get upper bound of the set. returns arbitrary values for empty sets.
     103          83 :         double getMaximum() const
     104             :         {
     105          83 :             return maRange.getMaximum();
     106             :         }
     107             : 
     108             :         /// return difference between upper and lower value. returns 0 for empty sets.
     109           4 :         double getRange() const
     110             :         {
     111           4 :             return maRange.getRange();
     112             :         }
     113             : 
     114             :         /// return middle of upper and lower value. returns 0 for empty sets.
     115           6 :         double getCenter() const
     116             :         {
     117           6 :             return maRange.getCenter();
     118             :         }
     119             : 
     120             :         /// yields true if value is contained in set
     121           6 :         bool isInside(double fValue) const
     122             :         {
     123           6 :             return maRange.isInside(fValue);
     124             :         }
     125             : 
     126             :         /// yields true if rRange is inside, or equal to set
     127             :         bool isInside(const B1DRange& rRange) const
     128             :         {
     129             :             return maRange.isInside(rRange.maRange);
     130             :         }
     131             : 
     132             :         /// yields true if rRange at least partly inside set
     133     3510390 :         bool overlaps(const B1DRange& rRange) const
     134             :         {
     135     3510390 :             return maRange.overlaps(rRange.maRange);
     136             :         }
     137             : 
     138             :         /// yields true if overlaps(rRange) does, and the overlap is larger than infinitesimal
     139           4 :         bool overlapsMore(const B1DRange& rRange) const
     140             :         {
     141           4 :             return maRange.overlapsMore(rRange.maRange);
     142             :         }
     143             : 
     144             :         /// add fValue to the set, expanding as necessary
     145     3331161 :         void expand(double fValue)
     146             :         {
     147     3331161 :             maRange.expand(fValue);
     148     3331161 :         }
     149             : 
     150             :         /// add rRange to the set, expanding as necessary
     151       44691 :         void expand(const B1DRange& rRange)
     152             :         {
     153       44691 :             maRange.expand(rRange.maRange);
     154       44691 :         }
     155             : 
     156             :         /// calc set intersection
     157           4 :         void intersect(const B1DRange& rRange)
     158             :         {
     159           4 :             maRange.intersect(rRange.maRange);
     160           4 :         }
     161             : 
     162             :         /// grow set by fValue on both sides
     163             :         void grow(double fValue)
     164             :         {
     165             :             maRange.grow(fValue);
     166             :         }
     167             :     };
     168             : 
     169             : } // end of namespace basegfx
     170             : 
     171             : 
     172             : #endif // INCLUDED_BASEGFX_RANGE_B1DRANGE_HXX
     173             : 
     174             : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */

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