On 02/18/2015 11:44 AM, Mark Gaiser wrote:
> On Wed, Feb 18, 2015 at 1:18 AM, Jason H <jh...@gmx.com
> <mailto:jh...@gmx.com>> wrote:
>
> Yes, I think 80% of it is 100% do-able.
> Rotation defined by bytes receiced, with bounce easing.
> The only issue is the drain animation. I'd probably use Canvas
> and mathmatically define the position of a set of control points as
> a function of time. Feed those to a path, and you've got all the
> makings of a drain effect.
>
> I actually don't mind the drain animation, it's nice, but i never
> imagine a progressbar to drain in that way :)
> But i do like to - try and - make a progressbar in the same fashion with
> a tooltip floating above it. Guess it's time to play with QML and see
> how far i can get with this.
You were worried about synchronizing the end of the progressbar with the
location of the floater (hmm, that's probably a bad word for it) above
it, right?
To fix this, create a property that's used by both the progressbar and
the sign.
Item {
property int currentX: progress / 100 * progressWidth
Behaviour on currentX { ... }
}
If you want to rotate the sign but not the text, then encapsulate the
item twice:
Item {
id: floater
Item { id: signPart: ... }
Item { id: textPart; ... }
}
Then you can rotate the signPart without rotating the text.
Doing stuff like this is where QML is *fantastic*, and it's great fun to
figure out how to do it.
Be careful to encapsulate everything in Items, or you will regret it
later. You can have a look here for a bit of inspiration (shameless
plug, it's my own Qt blog): http://www.vikingsoft.eu/blog/?p=173
Have fun :)
Bo Thorsen,
Director, Viking Software.
--
Viking Software
Qt and C++ developers for hire
http://www.vikingsoft.eu
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