mirror of https://github.com/odrling/Aegisub
77 lines
2.5 KiB
C++
77 lines
2.5 KiB
C++
// Copyright (c) 2007, Rodrigo Braz Monteiro
|
|
// All rights reserved.
|
|
//
|
|
// Redistribution and use in source and binary forms, with or without
|
|
// modification, are permitted provided that the following conditions are met:
|
|
//
|
|
// * Redistributions of source code must retain the above copyright notice,
|
|
// this list of conditions and the following disclaimer.
|
|
// * Redistributions in binary form must reproduce the above copyright notice,
|
|
// this list of conditions and the following disclaimer in the documentation
|
|
// and/or other materials provided with the distribution.
|
|
// * Neither the name of the Aegisub Group nor the names of its contributors
|
|
// may be used to endorse or promote products derived from this software
|
|
// without specific prior written permission.
|
|
//
|
|
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
|
|
// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
|
|
// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
|
|
// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
|
|
// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
|
|
// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
|
|
// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
|
// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
|
// POSSIBILITY OF SUCH DAMAGE.
|
|
//
|
|
// -----------------------------------------------------------------------------
|
|
//
|
|
// AEGISUB
|
|
//
|
|
// Website: http://aegisub.cellosoft.com
|
|
// Contact: mailto:zeratul@cellosoft.com
|
|
//
|
|
|
|
|
|
#pragma once
|
|
|
|
|
|
///////////
|
|
// Headers
|
|
#include "vector2d.h"
|
|
|
|
|
|
///////////////
|
|
// Curve types
|
|
enum CurveType {
|
|
CURVE_INVALID,
|
|
CURVE_POINT,
|
|
CURVE_LINE,
|
|
CURVE_BICUBIC
|
|
};
|
|
|
|
|
|
////////////////
|
|
// Spline curve
|
|
class SplineCurve {
|
|
private:
|
|
float GetClosestSegmentPart(Vector2D p1,Vector2D p2,Vector2D p3) const;
|
|
float GetClosestSegmentDistance(Vector2D p1,Vector2D p2,Vector2D p3) const;
|
|
|
|
public:
|
|
Vector2D p1,p2,p3,p4;
|
|
CurveType type;
|
|
|
|
SplineCurve();
|
|
void Split(SplineCurve &c1,SplineCurve &c2,float t=0.5);
|
|
void Smooth(Vector2D prev,Vector2D next,float smooth=1.0f);
|
|
|
|
Vector2D GetPoint(float t) const;
|
|
Vector2D GetStartPoint() const;
|
|
Vector2D GetEndPoint() const;
|
|
Vector2D GetClosestPoint(Vector2D ref) const;
|
|
float GetClosestParam(Vector2D ref) const;
|
|
float GetQuickDistance(Vector2D ref) const;
|
|
};
|