Re: [gtkmm] treeview --- custom celrenderer..

["Andrew E. Makeev" <andrew solvo ru>]

B.Hakvoort wrote:

> Hi,
>
> I try to show colored squares in my treeview. For anyone who wonders
> what i'm talking about, look here :) (the colored squares in front of
> the filesystems) http://members.cox.net/tribblehunter/tech/partition.jpg
>
> I've tried to make use of the CellRendererToggle, but i wasn't able to
> access the widget (which i need to change the background color)
>  
I'd suggest the following implementation for column "Type" that you've 
reffered:

1. Write custom CellRenderer, where you'd just paint colored square:
   - reimplement get_size_vfunc - to set size of your color cell;
   - reimplement render_vfunc - to draw the square (Gdk::Drawable has 
lot of functions you may wish to use for that - draw_rectangle(), for 
instance).
2. Create TreeView::Column and pack there 2 CellRenderers:  Custom + Text.
3. Link Custom CellRenderer attribute (property) that will handle color 
selection with Text Cellrenderer value or hidded column.

> Of course i could use images, but i would prefer to handle this in the
> sourcecode...
>
> Hopefully someone can give me the complete solution, but i will settle
> for a pointer or even a vague hint :)
>
>