forked from mia/Aegisub
111 lines
4.3 KiB
C++
111 lines
4.3 KiB
C++
// Copyright (c) 2007, Rodrigo Braz Monteiro
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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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#include "spline_curve.h"
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#include <string>
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#include <vector>
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class VisualToolBase;
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class Spline final : private std::vector<SplineCurve> {
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/// Visual tool to do the conversion between script and video pixels
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const VisualToolBase &coord_translator;
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/// Spline scale
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int scale = 0;
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int raw_scale = 0;
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/// Video coordinates -> Script coordinates
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Vector2D ToScript(Vector2D vec) const;
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/// Script coordinates -> Video coordinates
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Vector2D FromScript(Vector2D vec) const;
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public:
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Spline(const VisualToolBase &scale);
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/// Encode to an ASS vector drawing
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std::string EncodeToAss() const;
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/// Decode an ASS vector drawing
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void DecodeFromAss(std::string const& str);
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/// Set the scale
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/// @param new_scale Power-of-two to scale coordinates by
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void SetScale(int new_scale);
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/// Get the current scale
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int GetScale() const { return raw_scale; }
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/// @brief Moves a specific point in the spline
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/// @param curve Curve which the point is in
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/// @param point Index in the curve
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/// @param pos New position
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void MovePoint(iterator curve, int point, Vector2D pos);
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/// Smooth the spline
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void Smooth(float smooth=1.0f);
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/// Gets a list of points in the curve
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std::vector<float> GetPointList(std::vector<int>& first, std::vector<int>& count);
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/// Gets a list of points in the curve
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std::vector<float> GetPointList(iterator curve);
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/// Get t value and curve of the point closest to reference
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void GetClosestParametricPoint(Vector2D reference, iterator& curve, float &t, Vector2D &point);
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/// Get closest point on the curve to reference
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Vector2D GetClosestPoint(Vector2D reference);
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Vector2D GetClosestControlPoint(Vector2D reference);
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using std::vector<SplineCurve>::value_type;
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using std::vector<SplineCurve>::pointer;
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using std::vector<SplineCurve>::reference;
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using std::vector<SplineCurve>::const_reference;
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using std::vector<SplineCurve>::size_type;
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using std::vector<SplineCurve>::difference_type;
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using std::vector<SplineCurve>::iterator;
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using std::vector<SplineCurve>::const_iterator;
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using std::vector<SplineCurve>::reverse_iterator;
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using std::vector<SplineCurve>::const_reverse_iterator;
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using std::vector<SplineCurve>::back;
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using std::vector<SplineCurve>::begin;
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using std::vector<SplineCurve>::clear;
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using std::vector<SplineCurve>::emplace_back;
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using std::vector<SplineCurve>::empty;
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using std::vector<SplineCurve>::end;
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using std::vector<SplineCurve>::erase;
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using std::vector<SplineCurve>::front;
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using std::vector<SplineCurve>::insert;
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using std::vector<SplineCurve>::operator[];
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using std::vector<SplineCurve>::pop_back;
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using std::vector<SplineCurve>::push_back;
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using std::vector<SplineCurve>::rbegin;
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using std::vector<SplineCurve>::rend;
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using std::vector<SplineCurve>::size;
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};
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