GTK+, building a display

["Leonel Freire" <leonelfreire gmail com>]

I already searched and asked for this on the GTK+/GTK+Devel lists but I didn't get any answer, so I'll ask again: is there any way to set the font width or height size? I mean, not the font size in points but the font width or height in pixels. I'm doing a display in GTK+ for a POS emulator and I need to set the font width and font height to get some efects like "double width" or "double height". At the moment I'm using some functions from the Pango lib, like "pango_matrix_scale" and "pango_layout_get_pixel_size", to do this, but this is very annoying, since I have to start from a size in points like 
0.5 and go to something like MAX_TEST_SIZE, testing all the values from "pango_layout_get_pixel_size" to see if any of them is in my desirable font width or height. I don't need to say that this consumes a lot of time and CPU usage.

Another way to see my problem is answering this question: if I have a display with 168x136 pixels and 21x8 cols what font size, in points, should I use that best fits this display?

The display size can change (the user can change the skins) at runtime, so I must recalculate this every time.

Leonel Freire