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//
// libavg - Media Playback Engine.
// Copyright (C) 2003-2014 Ulrich von Zadow
//
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public
// License as published by the Free Software Foundation; either
// version 2 of the License, or (at your option) any later version.
//
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
// Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
//
// Current versions can be found at www.libavg.de
//
#ifndef _CurveNode_H_
#define _CurveNode_H_
#include "../api.h"
#include "VectorNode.h"
#include "../graphics/Pixel32.h"
namespace avg {
class AVG_API CurveNode : public VectorNode
{
public:
static void registerType();
CurveNode(const ArgList& args);
virtual ~CurveNode();
const glm::vec2& getPos1() const;
void setPos1(const glm::vec2& pt);
const glm::vec2& getPos2() const;
void setPos2(const glm::vec2& pt);
const glm::vec2& getPos3() const;
void setPos3(const glm::vec2& pt);
const glm::vec2& getPos4() const;
void setPos4(const glm::vec2& pt);
float getTexCoord1() const;
void setTexCoord1(float tc);
float getTexCoord2() const;
void setTexCoord2(float tc);
int getCurveLen() const;
glm::vec2 getPtOnCurve(float t) const;
virtual void calcVertexes(const VertexDataPtr& pVertexData, Pixel32 color);
private:
void updateLines();
void addLRCurvePoint(const glm::vec2& pos, const glm::vec2& deriv);
glm::vec2 m_P1;
glm::vec2 m_P2;
glm::vec2 m_P3;
glm::vec2 m_P4;
float m_TC1;
float m_TC2;
std::vector<glm::vec2> m_LeftCurve;
std::vector<glm::vec2> m_RightCurve;
};
}
#endif
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