WebCore/TimeRanges.h

   1 /*
   2  * Copyright (C) 2007 Apple Inc. All rights reserved.
   3  *
   4  * Redistribution and use in source and binary forms, with or without
   5  * modification, are permitted provided that the following conditions
   6  * are met:
   7  * 1. Redistributions of source code must retain the above copyright
   8  *    notice, this list of conditions and the following disclaimer.
   9  * 2. Redistributions in binary form must reproduce the above copyright
  10  *    notice, this list of conditions and the following disclaimer in the
  11  *    documentation and/or other materials provided with the distribution.
  12  *
  13  * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
  14  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  15  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  16  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
  17  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
  18  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
  19  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
  20  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
  21  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  22  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  23  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  24  */
  25
  26 #ifndef TimeRanges_h
  27 #define TimeRanges_h
  28
  29 #include "ExceptionCode.h"
  30 #include <wtf/PassRefPtr.h>
  31 #include <wtf/RefCounted.h>
  32 #include <wtf/Vector.h>
  33
  34 namespace WebCore {
  35
  36 class TimeRanges : public RefCounted<TimeRanges> {
  37 public:
  38     static PassRefPtr<TimeRanges> create()
  39     {
  40         return adoptRef(new TimeRanges);
  41     }
  42     static PassRefPtr<TimeRanges> create(float start, float end)
  43     {
  44         return adoptRef(new TimeRanges(start, end));
  45     }
  46
  47     unsigned length() const { return m_ranges.size(); }
  48     float start(unsigned index, ExceptionCode&) const;
  49     float end(unsigned index, ExceptionCode&) const;
  50
  51     void add(float start, float end);
  52
  53     bool contain(float time) const;
  54
  55 private:
  56     TimeRanges() { }
  57     TimeRanges(float start, float end);
  58
  59     struct Range {
  60         Range() { }
  61         Range(float start, float end) {
  62             m_start = start;
  63             m_end = end;
  64         }
  65         float m_start;
  66         float m_end;
  67     };
  68
  69     Vector<Range> m_ranges;
  70 };
  71
  72 } // namespace WebCore
  73
  74 #endif