[ft-devel] Determining the size of space character

[Ivan Tarapov]

Hello,

 

I am involved in a project that uses FLTK+microwindows on a linux-based system. We use freetype 2.2.1 for rendering of ttf fonts. I have been struggling for a long time to get it to determine the size in pixels of the passed string correctly. What I dug up is this:

 

Microwindows ultimately calls FT_Glyph_Get_CBox to determine the CBox for the character and calculates its size accordingly. It doesn’t work for space character. The CBox for space character turns out to be filled with zeroes, hence wrong pixelsize for the string. FT_Glyph_Get_CBox in its turn calls ft_outline_glyph_bbox which issues a call to FT_Outline_Get_CBox which does the calculations. However the calculations are based on the outline->n_points field, which is zero for the space character. This seems like a bug to me. Or maybe there is a workaround for this?

 

Sincerely,

Ivan