forked from mia/Aegisub
aaf7285a6e
Keeping track of audio markers and labels to be shown in the audio display is not particularly related to AudioController's primary responsiblity of controlling the playback of audio. Originally committed to SVN as r6427.
77 lines
3 KiB
C++
77 lines
3 KiB
C++
// Copyright (c) 2010, Niels Martin Hansen
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// All rights reserved.
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//
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are met:
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//
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// * Redistributions of source code must retain the above copyright notice,
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// this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above copyright notice,
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// this list of conditions and the following disclaimer in the documentation
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// and/or other materials provided with the distribution.
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// * Neither the name of the Aegisub Group nor the names of its contributors
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// may be used to endorse or promote products derived from this software
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// without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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// POSSIBILITY OF SUCH DAMAGE.
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//
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// Aegisub Project http://www.aegisub.org/
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//
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// $Id$
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/// @file time_range.h
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/// @ingroup audio_ui
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/// @class TimeRange
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/// @brief Represents an immutable range of time
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class TimeRange {
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int _begin;
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int _end;
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public:
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/// @brief Constructor
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/// @param begin Index of the first millisecond to include in the range
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/// @param end Index of one past the last millisecond to include in the range
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TimeRange(int begin, int end) : _begin(begin), _end(end)
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{
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assert(end >= begin);
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}
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/// @brief Copy constructor, optionally adjusting the range
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/// @param src The range to duplicate
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/// @param begin_adjust Number of milliseconds to add to the start of the range
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/// @param end_adjust Number of milliseconds to add to the end of the range
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TimeRange(const TimeRange &src, int begin_adjust = 0, int end_adjust = 0)
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{
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_begin = src._begin + begin_adjust;
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_end = src._end + end_adjust;
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assert(_end >= _begin);
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}
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/// Get the length of the range in milliseconds
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int length() const { return _end - _begin; }
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/// Get the start time of the range in milliseconds
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int begin() const { return _begin; }
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/// Get the exclusive end time of the range in milliseconds
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int end() const { return _end; }
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/// Determine whether the range contains a given time in milliseconds
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bool contains(int ms) const { return ms >= begin() && ms < end(); }
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/// Determine whether there is an overlap between two ranges
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bool overlaps(const TimeRange &other) const
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{
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return other.contains(_begin) || contains(other._begin);
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}
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};
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