FntWrapGlyphLibGL.h

/*
* Copyright (C) TES Electronic Solutions GmbH,
* All Rights Reserved.
* Contact: info@guiliani.de
*
* This file is part of the Guiliani HMI framework
* for the development of graphical user interfaces on embedded systems.
*/
 
#ifndef __FNT_WRAP_GLYPHLIB_GL_H__
#define __FNT_WRAP_GLYPHLIB_GL_H__
 
#include "FntWrapGlyphLib.h"
#include "FntWrapGLFontAtlas.h"
 
 
class CFntWrapGlyphLibGL : public CFntWrapGlyphLib
{
public:
    static eC_Bool CreateInstance(
        const eC_UInt& uiGlyphCacheInitialSize = 32,
        const eC_Bool& bGlyphCacheAutoResize = true,
        const eC_UInt& uiGlyphCacheResizeBy = 10);
 
protected:
    virtual void LoadFont(const FontResource_t &eFontID);
    virtual void UnloadFont(const FontResource_t &eFontID);
 
    virtual void GetGlyphMetrics(const eC_Char cChar, GlyphMetrics_t& kMetrics);
 
    virtual eC_Int GetAscender() const;
    virtual eC_Int GetDescender() const;
    virtual eC_Int GetInternalLeading() const;
 
    virtual eC_Bool SetNOFFonts(const eC_UInt uiNOFFonts);
 
    eC_TArray<CFntWrapGLFontAtlas*> m_apGLFontAtlas;
 
private:
    CFntWrapGlyphLibGL(
        const eC_UInt& uiGlyphCacheInitialSize,
        const eC_Bool& bGlyphCacheAutoResize,
        const eC_UInt& uiGlyphCacheResizeBy);
 
    virtual ~CFntWrapGlyphLibGL(void);
 
    virtual void RenderTextInternal(
        const eC_String *lpString,
        const TextOperation_t &eOperation,
        const eC_Value& vX1,
        const eC_Value& vY1,
        eC_Value& vWidth,
        eC_Value& vHeight,
        eC_Value vWidthMax,
        eC_UInt &uiNumFittingChars);
 
    virtual void RenderGlyphToScreen(const eC_Value& vX1, const eC_Value& vY1, CGUIImageData& kGlyphImage) {}
 
    void AddGlyph(
        eC_TArray<eC_Value>& avVertices,
        const eC_UInt& uiArrayIndex,
        const eC_Value& vX,
        const eC_Value& vY,
        const eC_Int& iWidth,
        const eC_Int& iHeight,
        const eC_Value& vULeft,
        const eC_Value& vURight,
        const eC_Value& vVTop,
        const eC_Value& vVBottom);
 
    CFntWrapGlyphLibGL(const CFntWrapGlyphLibGL& kSource);
 
    CFntWrapGlyphLibGL& operator=(const CFntWrapGlyphLibGL& kSource);
 
private:
    eC_UInt m_uiGlyphCacheInitialSize;
    eC_Bool m_bGlyphCacheAutoResize;
    eC_UInt m_uiGlyphCacheResizeBy;
};
#endif