YiSDFAtlasTextSceneNode.h

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// © You i Labs Inc. 2000-2017. All rights reserved.
#ifndef _YI_SDF_ATLAS_TEXT_SCENE_NODE_H_
#define _YI_SDF_ATLAS_TEXT_SCENE_NODE_H_

#include "scenetree/YiTextSceneNode.h"

class CYIAssetBufferObjectData;
class CYIUnderlineSceneNode;

class CYISDFAtlasTextSceneNode : public CYITextSceneNode
{
public:
    CYISDFAtlasTextSceneNode();
    virtual ~CYISDFAtlasTextSceneNode();

    virtual YI_FLOAT_RECT_REL CalculateGlyphBox() override;

    virtual YI_FLOAT_RECT GetRectForTextRange(int32_t nStartIndex, int32_t nEndIndex, float fHorizontalPixelRatio, float fVerticalPixelRatio) override;

protected:
    virtual YI_FLOAT_RECT_REL CalculateGlyphBox(const YI_RECT_REL &boxRect) override;

    void GenerateTextMesh();

    virtual void PrepareToDraw() override;

    virtual void WorldSurfaceScaleUpdated() override;

private:
    std::shared_ptr<CYIAssetBufferObjectData> m_pVertices;
    CYIUnderlineSceneNode *m_pUnderlineNode;
    float m_fAspectRatio;
    bool m_bUseApproximationShader;

    YI_TYPE_BASES(CYISDFAtlasTextSceneNode, CYITextSceneNode)
};

#endif