Re: [Vala] Assist with compile issue re Cairo.PathData

[Shawn Ferris <shawn ferris gmail com>]

Sigh.. clearly you should not listen to me.. I can't even use gmail.. My
apologies if this has landed on the list a couple of times :D

On Tue, Oct 15, 2013 at 4:06 AM, Donn Ingle <donn ingle gmail com> wrote:
> Hello,
>     //Have tried Cairo.PathData[] data;


I don't know anything about Cairo, but you're not actually initializing the
array.. A quick glance at the cairo vapi, and I think you really want this?:

    Cairo.PathData[] data = path.data;

Or you can keep referencing it through this.path.data[], and lose the extra
assignment. Again, I don't know Cairo, so I could be completely wrong on
usage. But the error is because you've never initialized an array. (neither
does "var data = this.path.data[i];".. that tries to set data to a single
element of type PathData.. not an array of all PathData)

However, the more I look at the example, the more I think it doesn't make
sense. Is path ever initialized? Should you be inheriting from Cairo.Path
instead of Object?

public abstract class Shape : Cairo.Path {

vs.

public abstract class Shape : Object {

?

And then this.new_path() in a constructor?

Someone with Cairo experience will be able to help more than I will..

Shawn