Re: Canvas basics

[Stefan Kost <kost imn htwk-leipzig de>]

Hi Roger,

are you awar of GtkGrid?
http://www.sicem.biz/personal/lgs/projects/gtkgrid/view_project

Stefan

Roger Leigh wrote:
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> Jody Goldberg <jody gnome org> writes:
>
>
> > On Thu, Dec 23, 2004 at 01:45:53PM +0000, Roger Leigh wrote:
> >
> > > One other problem I've run into is text scaling.  I can use
> > > gnome_canvas_set_pixels_per_unit to set the canvas scaling factor
> > > (cse-mainwindow.c, line 73).  If I change this, the text does not
> > > scale with the other canvas items.  How can I get this to work
> > > correctly?  At a scaling factor of 1.0, I get an unreadable mess.
> >
> > For custom canvas item's you are doing the drawing, and hence need
> > to handle the scaling of text yourself.  Have a look at gnumeric's
> > src/item-bar.c for an example.
>
>
> Thanks, that was really helpful!
>
> I was able to keep things fairly simple (a bit simpler than
> item-bar.c).  Since I derived from GnomeCanvasGroup, I was able to
> simply mess with PangoFontDescriptions, and then just use
> gnome_canvas_item_set to do the changes, which avoids me messing with
> PangoFonts directly (presumably at the expense of performance).
>
>
> Regards,
> Roger
>
> - -- 
> Roger Leigh
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-- 
      \|/            Stefan Kost
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