Re: custom widgets - advice on where to start?

[James Morris <james jwm-art net>]

On 7 July 2010 17:34, Staffan Gimåker <staffan gimaker se> wrote:
> Is there a particular reason that you need a custom widget? Can you not
> just use a GtkDrawingArea and use Cairo to draw things in it?

That's the thing I'm unsure of, when to use a GtkDrawingArea and when
to use a custom widget.

I've never required anything beyond the standard widgets before now.
I'll look at the Cairo documentation.

Cheers,
James.

> The official Cairo documentation (the tutorial is here:
> http://cairographics.org/tutorial/) and the Gtk documentation are
> probably good places to start.
>
> /Staffan
>
> On Wed, 2010-07-07 at 13:05 +0100, James Morris wrote:
> > Hi,
> >
> > I need to create some complex widgets for my program. The first of
> > which is the main widget which will show static rectangles within
> > which other rectangles appear and disappear at musical rates (think
> > fast electronic dance music rates). The static rectangles may overlap
> > each other, but the other rectangles may not.
> >
> > I'm working in C.
> >
> > Can anyone recommend a good tutorial for this kind of thing?
> >
> > I've looked over http://zetcode.com/tutorials/cairographicstutorial/
> > but it doesn't explain much about creating custom widgets, nor am I
> > sure if I should use Cairo or not. While I want the display to be
> > colourful and attractive, I also want lightweight resource
> > requirements and speed.
> >
> > Thanks,
> > James.
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