Re: [Freetype] ftstring.c

[Mai Lan LE]

Hi,
In the ftstring.c, the advance values are computed in the layout_glyphs 
method. This function is used to compute the position of all character 
of the text. (horizontal layout).
The rotation is performed in the render_string method.
vec = glyph->pos;
FT_Vector_Transform( &vec, &trans_matrix );
vec.x += delta.x;
vec.y += delta.y;
FT_Glyph_Transform( image, &trans_matrix, &vec );


Regards
pl

Olivier Couet wrote:

> Hello,
>
> ftstring.c is one of the examples coming with the distribution. The
> rotation bit is clear to me. The only part I do not "see" is how the
> bitmap are positionned when rotated. According to the doc it should use
> the transformed advance ... but it doesn't seems to me.
>
> Olivier
>
> --
> Org:    CERN - European Laboratory for Particle Physics.
> Mail:   1211 Geneve 23 - Switzerland                                    
> E-Mail: address@hidden                      Phone: +41 22 7676522
> WWW:    http://cern.ch/Olivier.Couet/              Fax:   +41 22 7677155
>
> On Mon, 16 Sep 2002, Laurent Lequenne wrote:
>
> > Hello,
> >
> > Euh.. Long time, I didin't used freetype, so I can't remember well .I
> > remember wekk I tryed to figure it out some hour or two, so if you send me
> > that piece of code that rotates that thing, I could remember me maybe :-)
> >
> > Laurent
> >
> >
> > ----- Original Message -----
> > From: "Olivier Couet" <address@hidden>
> > To: <address@hidden>
> > Sent: Monday, September 16, 2002 3:37 PM
> > Subject: [Freetype] ftstring.c
> >
> >
> > > Hi,
> > >
> > > I was trying to understand how the example ftstring.c works when a string
> > > is rotated. I was very surprise to not see any where a reference to
> > > glyph->advance.x and glyph->advance.y . Does somebody understand how the
> > > glyphs are positioned in that example when the string is rotated ?
> > >
> > > Olivier
> > >
> > > --
> > > Org:    CERN - European Laboratory for Particle Physics.
> > > Mail:   1211 Geneve 23 - Switzerland
> > > E-Mail: address@hidden                      Phone: +41 22 7676522
> > > WWW:    http://cern.ch/Olivier.Couet/              Fax:   +41 22 7677155
> > >
> > >
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>
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