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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 _VectorNode_H_
#define _VectorNode_H_
#include "../api.h"
#include "Node.h"
#include "Shape.h"
#include "../base/UTF8String.h"
#include "../graphics/Pixel32.h"
#include "../graphics/VertexArray.h"
#include "../graphics/GLContext.h"
namespace avg {
struct WideLine;
class AVG_API VectorNode : public Node
{
public:
enum LineJoin {LJ_MITER, LJ_BEVEL};
static void registerType();
VectorNode(const ArgList& args);
virtual ~VectorNode();
virtual void connectDisplay();
virtual void connect(CanvasPtr pCanvas);
virtual void disconnect(bool bKill);
virtual void checkReload();
const UTF8String& getTexHRef() const;
void setTexHRef(const UTF8String& href);
void setBitmap(BitmapPtr pBmp);
const std::string& getBlendModeStr() const;
void setBlendModeStr(const std::string& sBlendMode);
virtual void preRender(const VertexArrayPtr& pVA, bool bIsParentActive,
float parentEffectiveOpacity);
virtual void maybeRender(const glm::mat4& parentTransform);
virtual void render();
virtual void calcVertexes(const VertexDataPtr& pVertexData, Pixel32 color) = 0;
void setColor(const std::string& sColor);
const std::string& getColor() const;
void setStrokeWidth(float width);
float getStrokeWidth() const;
static LineJoin string2LineJoin(const std::string& s);
static std::string lineJoin2String(LineJoin lineJoin);
protected:
Pixel32 getColorVal() const;
GLContext::BlendMode getBlendMode() const;
void setDrawNeeded();
bool isDrawNeeded();
bool hasVASizeChanged();
void calcPolyLineCumulDist(std::vector<float>& cumulDist,
const std::vector<glm::vec2>& pts, bool bIsClosed);
void calcEffPolyLineTexCoords(std::vector<float>& effTC,
const std::vector<float>& tc, const std::vector<float>& cumulDist);
void calcPolyLine(const std::vector<glm::vec2>& origPts,
const std::vector<float>& origTexCoords, bool bIsClosed,
LineJoin lineJoin, const VertexDataPtr& pVertexData, Pixel32 color);
void calcBevelTC(const WideLine& line1, const WideLine& line2,
bool bIsLeft, const std::vector<float>& texCoords, unsigned i,
float& TC0, float& TC1);
int getNumDifferentPts(const std::vector<glm::vec2>& pts);
protected:
const glm::mat4& getTransform() const;
private:
Shape* createDefaultShape() const;
std::string m_sColorName;
Pixel32 m_Color;
float m_StrokeWidth;
UTF8String m_TexHRef;
std::string m_sBlendMode;
bool m_bDrawNeeded;
bool m_bVASizeChanged;
glm::mat4 m_Transform;
ShapePtr m_pShape;
GLContext::BlendMode m_BlendMode;
};
typedef boost::shared_ptr<VectorNode> VectorNodePtr;
}
#endif
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