24 Sep
2012
24 Sep
'12
3:32 p.m.
I understand your concerns but without scrollbar this
is not so great.
So we will probably have to extend roassal in our corners.
Morphic Scrollbars can easily be added to Roassal. More easily that I thought actually.
I think this is an acceptable solution for now. Once caching strategies will be added to
Roassal, Morphic Scrollbar will not be use anymore.
In the long term, I would like to have scrollbars made in Roassal, like this, they will be
portable and give flexibility for caching. But since now there is no caching in Roassal,
there is no such a problem.
Cheers,
Alexandre
On Sep 20, 2012, at 3:21 PM, Alexandre Bergel wrote:
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Would it
not be good to put classic pharo scrollbars (as was the case with Mondrian, see the
attached screenshot from a mondrian visualization) for Roassal visualizations?
This is not possible for several reasons:
- if I had Morphic scrollbar, then keeping Roassal dialect independent will be harder
- I would like Roassal to be _really_ scalable in the future (my goal is 1 000 000
nodes). Relying on Morphic for the scrolling may impede this goal.
I will try to come with an implementation for this soon.
Cheers,
Alexandre
regards,
Usman
<image.png>
On Mon, Sep 17, 2012 at 2:37 PM, Alexandre Bergel <alexandre.bergel(a)me.com> wrote:
Hi Usman,
I have been slow on this. Thanks for pushing!
I will try to come with an implementation for next Sunday.
Cheers,
Alexandre
On Sep 16, 2012, at 8:48 AM, Usman Bhatti <usman.bhatti(a)gmail.com> wrote:
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Do you plan to evolve progress bars in Roassal in the direction suggested by Doru?
usman
On Wed, Jun 6, 2012 at 7:58 AM, Tudor Girba <tudor(a)tudorgirba.com> wrote:
Hi Alex,
Interesting, but it should be different :):
- the main purpose of the scrollbar is to show the position of the visible part within
the overall canvas. However, currently, the size of the scroll bar is constant, and thus
it does not solve the goal. To solve this, we need to be able to react to ROCamera bounds
change events.
- furthermore, when scrolling by clicking and dragging on the canvas, the scrollbars do
not get updated (even worse, the vertical one disappears).
- another characteristic of a scrollbar is to not be intrusive. We learnt that from Apple
that we actually not need a scrollbar when we have a good way to scroll. So, the bars
should be transparent and thinner.
Cheers,
Doru
On 5 Jun 2012, at 23:24, Alexandre Bergel wrote:
> I started to work on it. Not perfect, but a good start I feel. Feel free to try:
> -=-=-=-=-=-=-=-=-=-=-=-=
> | view els stack |
> view := ROView new.
> view add: ROElement sprite.
>
> els := ROElement spritesFor: (1 to: 500).
> els do: [ :el | el + ROLabel @ ROPopup ].
> view addAll: (ROGridLayout on: els).
> view @ RODraggable .
>
> stack := ROViewStack new.
> stack addView: view.
> stack @ ROScrollbable.
> stack open.
> -=-=-=-=-=-=-=-=-=-=-=-=
>
> Cheers,
> Alexandre
>
> On Jun 4, 2012, at 10:28 PM, Usman Bhatti wrote:
>
>> Hello,
>>
>> How to we add horizontal and vertical scroll bars to a Roassal visualization. I
browsed through some examples but could not find one with these.
>>
>> tx.
>> usman
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>
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