22 Sep
2012
22 Sep
'12
11:21 p.m.
Hello,
Here is a proposition for scrollbars in Roassal. The idea is show
scrollbars only when the cursor goes in the blue region in the figure
(colored blue for illustrated purpose only, otherwise it would be
transparent). A test script is also attached. I built this on the
implementation provided by Alex. As this is just a mock, there are still
some points to be resolved (redrawing bars in case of window resize,
dragging still makes disappear vertical bar). But these issues can be
addressed once we know what is intended to be retained in Roassal.
Did you guys discuss on these lines or something completely different?
regards,
Usman
[image: Inline image 1]
On Sat, Sep 22, 2012 at 9:31 PM, Tudor Girba <tudor(a)tudorgirba.com> wrote:
I am sure that Alex can build the scrollbar inside
Roassal :). We
already discussed about how it should work, and I do not think it is
that difficult.
Doru
On Sat, Sep 22, 2012 at 5:53 PM, Stéphane Ducasse
<stephane.ducasse(a)inria.fr> wrote:
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alex
I understand your concerns but without scrollbar this is not so great.
So we will probably have to extend roassal in our corners.
Stef
On Sep 20, 2012, at 3:21 PM, Alexandre Bergel wrote:
>> 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:
>>
>>> Hi Alex,
>>>
>>> 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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>> Alexandre Bergel http://www.bergel.eu
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