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97 lines
3.9 KiB
C++
97 lines
3.9 KiB
C++
/*****************************************************************************************
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* *
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* OpenSpace *
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* *
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* Copyright (c) 2014-2017 *
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* *
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* Permission is hereby granted, free of charge, to any person obtaining a copy of this *
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* software and associated documentation files (the "Software"), to deal in the Software *
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* without restriction, including without limitation the rights to use, copy, modify, *
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* merge, publish, distribute, sublicense, and/or sell copies of the Software, and to *
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* permit persons to whom the Software is furnished to do so, subject to the following *
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* conditions: *
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* *
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* The above copyright notice and this permission notice shall be included in all copies *
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* or substantial portions of the Software. *
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* *
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, *
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* INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A *
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* PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT *
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* HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF *
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* CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE *
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* OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. *
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****************************************************************************************/
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#ifndef __OPENSPACE_CORE___TIMELINE___H__
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#define __OPENSPACE_CORE___TIMELINE___H__
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#include <algorithm>
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#include <deque>
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#include <cstddef>
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namespace openspace {
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/**
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* Base class for keyframes
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*/
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struct KeyframeBase {
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size_t id;
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double timestamp;
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};
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/**
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* Templated class for keyframes containing data
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*/
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template <typename T>
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struct Keyframe : public KeyframeBase {
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Keyframe(size_t i, double t, T p)
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: KeyframeBase{i, t}
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, data(p)
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{}
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T data;
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};
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/**
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* Templated class for timelines
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*/
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template <typename T>
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class Timeline {
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public:
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Timeline();
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virtual ~Timeline();
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void addKeyframe(double time, T data);
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void clearKeyframes();
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void removeKeyframe(size_t id);
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void removeKeyframesBefore(double timestamp, bool inclusive = false);
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void removeKeyframesAfter(double timestamp, bool inclusive = false);
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void removeKeyframesBetween(double begin, double end, bool inclusiveBegin = false, bool inclusiveEnd = false);
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size_t nKeyframes() const;
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const Keyframe<T>* firstKeyframeAfter(double timestamp, bool inclusive = false) const;
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const Keyframe<T>* lastKeyframeBefore(double timestamp, bool inclusive = false) const;
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const std::deque<Keyframe<T>>& keyframes() const;
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private:
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size_t _nextKeyframeId;
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std::deque<Keyframe<T>> _keyframes;
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};
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/**
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* Return true if the timestamp of a is smaller the timestamp of b.
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*/
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bool compareKeyframeTimes(const KeyframeBase& a, const KeyframeBase& b);
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/**
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* Return true if a is smaller than the timestamp of b.
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*/
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bool compareTimeWithKeyframeTime(double a, const KeyframeBase& b);
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/**
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* Return true if the timestamp of a is smaller than b.
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*/
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bool compareKeyframeTimeWithTime(const KeyframeBase& a, double b);
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} // namespace openspace
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#include <openspace/util/timeline.inl>
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#endif // __OPENSPACE_CORE___TIMELINE___H__
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