rFont Class Reference

Inheritance diagram for rFont:

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Collaboration diagram for rFont:

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List of all members.

Public Member Functions
	rFont (const char *fileName, int Offset=0, REAL CWidth=(1/16.0), REAL CHeight=(1/8.0), REAL onepixel=1/256.0, rFont *lower=NULL)
	rFont (const char *fileName, rFont *lower)
virtual	~rFont ()
void	Render (unsigned char c, REAL left, REAL top, REAL right, REAL bot)
Static Public Attributes
static rFont	s_defaultFont
static rFont	s_defaultFontSmall
Protected Member Functions
virtual void	ProcessImage (SDL_Surface *)
	process the surface before uploading it to GL
virtual void	OnSelect (bool enforce)
	Selects the texture for rendering.
Private Attributes
int	offset
REAL	cwidth
REAL	cheight
REAL	onepixel
rFont *	lowerPart

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Detailed Description

Definition at line 54 of file rFont.cpp.

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Constructor & Destructor Documentation

rFont::rFont	(	const char *	fileName,
		int	Offset = 0,
		REAL	CWidth = (1/16.0),
		REAL	CHeight = (1/8.0),
		REAL	onepixel = 1/256.0,
		rFont *	lower = NULL
	)

Definition at line 76 of file rFont.cpp.

References rISurfaceTexture::StoreAlpha().

                                                                                          :
        rFileTexture(rTextureGroups::TEX_FONT,fileName,0,0),
        offset(Offset),cwidth(CWidth),cheight(CHeight),
        onepixel(op),lowerPart(lower)
{
    StoreAlpha();
}

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rFont::rFont	(	const char *	fileName,
		rFont *	lower
	)

Definition at line 84 of file rFont.cpp.

References rISurfaceTexture::StoreAlpha().

                                              :
        rFileTexture(rTextureGroups::TEX_FONT,fileName,0,0),
        offset(0),cwidth(1/16.0),cheight(1/8.0),
        onepixel(1/256.0),lowerPart(lower)
{
    StoreAlpha();
}

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rFont::~rFont

(

)

[virtual]

Definition at line 92 of file rFont.cpp.

{}

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Member Function Documentation

void rFont::Render	(	unsigned char	c,
		REAL	left,
		REAL	top,
		REAL	right,
		REAL	bot
	)

Definition at line 144 of file rFont.cpp.

References BeginQuads(), cheight, cwidth, lowerPart, offset, onepixel, REAL, RenderEnd(), rITexture::Select(), rTextureGroups::TEX_FONT, rTextureGroups::TextureMode, and x.

Referenced by rFontContainer::Render().

                                                                        {
    //  if (c > 128 && this == &rFont::s_defaultFont)
    //rFont::s_defaultFontSmall.Render(c, left, top, right, bot);
    //  else
    // if(31<c && 256>c && sr_glOut)
    {
        c-=offset;

        int x=c%16;
        int y=c/16;

        REAL pix = onepixel *.1;
        if (rTextureGroups::TextureMode[rTextureGroups::TEX_FONT] != GL_NEAREST && rTextureGroups::TextureMode[rTextureGroups::TEX_FONT] != GL_NEAREST_MIPMAP_NEAREST)
            pix = onepixel * .5;


        REAL ttop=y*cheight+pix;
        REAL tbot=(y+1)*cheight-pix;
        REAL tleft=x*cwidth+pix;
        REAL tright=(x+1)*cwidth-pix;

        rFont* select = this;
        while (ttop > .999 && select->lowerPart)
        {
            tbot -= 1;
            ttop -= 1;
            select = select->lowerPart;
        }
        select->Select(true);
        
        BeginQuads();
        glTexCoord2f(tright,tbot);
        glVertex2f(   right, bot);

        glTexCoord2f(tright,ttop);
        glVertex2f(   right ,top);

        glTexCoord2f(tleft,ttop);
        glVertex2f(   left, top);

        glTexCoord2f(tleft,tbot);
        glVertex2f(   left, bot);
        RenderEnd();
    }
}

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void rFont::ProcessImage

(

SDL_Surface *

surface

)

[protected, virtual]

process the surface before uploading it to GL

Parameters:

surface

the surface to process

Reimplemented from rISurfaceTexture.

Definition at line 104 of file rFont.cpp.

References sr_alphaBlend.

{
#ifndef DEDICATED
    if ( sr_alphaBlend )
        return;

    // pre-blend alpha values
    GLubyte *pixels =reinterpret_cast<GLubyte *>(surface->pixels);

    if (surface->format->BytesPerPixel == 4)
    {
        for (int i=surface->w*surface->h-1;i>=0;i--){
            GLubyte alpha=pixels[4*i+3];
            pixels[4*i  ] = (alpha * pixels[4*i  ]) >> 8;
            pixels[4*i+1] = (alpha * pixels[4*i+1]) >> 8;
            pixels[4*i+2] = (alpha * pixels[4*i+2]) >> 8;
        }
    }
    else if (surface->format->BytesPerPixel == 2)
    {
        for (int i=surface->w*surface->h-1;i>=0;i--){
            GLubyte alpha=pixels[2*i+1];
            pixels[2*i  ] = (alpha * pixels[2*i  ]) >> 8;
        }
    }
#endif
}

void rFont::OnSelect

(

bool

enforce

)

[protected, virtual]

Selects the texture for rendering.

Parameters:

enforce

enforce when set to true, the texture should be loaded even if the configuration says it should not

Reimplemented from rISurfaceTexture.

Definition at line 132 of file rFont.cpp.

References rISurfaceTexture::Loaded(), rISurfaceTexture::OnSelect(), sr_glOut, and tERR_ERROR.

{
    rISurfaceTexture::OnSelect( enforce );
    if ( !Loaded() && sr_glOut )
    {
        // abort. It makes no sense to continue without a font.
        tERR_ERROR( "Font file " << this->GetFileName() << " could not be loaded.");
    }
}

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Member Data Documentation

int rFont::offset [private]

Definition at line 55 of file rFont.cpp.

Referenced by Render().

REAL rFont::cwidth [private]

Definition at line 56 of file rFont.cpp.

Referenced by Render().

REAL rFont::cheight [private]

Definition at line 57 of file rFont.cpp.

Referenced by Render().

REAL rFont::onepixel [private]

Definition at line 58 of file rFont.cpp.

Referenced by Render().

rFont* rFont::lowerPart [private]

Definition at line 59 of file rFont.cpp.

Referenced by Render().

rFont rFont::s_defaultFont [static]

Definition at line 70 of file rFont.cpp.

Referenced by rFontContainer::Render().

rFont rFont::s_defaultFontSmall [static]

Definition at line 70 of file rFont.cpp.

Referenced by rFontContainer::Render().

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The documentation for this class was generated from the following file:

• src/render/rFont.cpp

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