Re: Use Pango Layouts with GooCanvas Text

[Damon Chaplin <damon karuna eclipse co uk>]

On Sun, 2009-08-23 at 17:05 -0700, Aditya Rajgarhia wrote:
> Damon, thanks for the reply. I have tried to split the text using 
> newline characters in several ways, but the problem is that the number 
> of characters in each line depends on the size of text, which the user 
> can select. Using Pango Layouts in the Gnome Canvas code, this could be 
> done by using a Pango::LayoutLine which would simply return this number 
> through the get_length() method.
> 
> I have spent a lot of time on this and have gone through all the 
> examples, but don't see the Goocanvas::Text class providing similar 
> functionality. Please let me know if I am missing something.

You're right. GooCanvasText doesn't provide direct access to the
PangoLayout, so you can't manipulate it.

I think you'll probably need to create a custom canvas item.


> On a somewhat related note, how can I manipulate *just* the size of text 
> in Goocanvas without modifying the font family?

You could try using the "font-desc" property of the GooCanvasText, and
only setting the size with pango_font_description_set_size().

Or use Pango markup and set the "use-markup" property, and use something
like: "<span size="x-large">Some text</span>"

Damon