8 Apr
2015
8 Apr
'15
3:34 p.m.
Status: New
Owner: ----
Labels: Type-Defect Priority-Medium Component-Roassal
New issue 1119 by alexandr...(a)gmail.com: progress bar when using the force
based layout
https://code.google.com/p/moose-technology/issues/detail?id=1119
An alternative is to have another subclass, such as
RTForceBasedWithProgressBarLayout
But this is not idea, because the progress bar should be by default Pharo.
And on VisualWorks no.
Another alternative, and the cleanest one I believe, is to have event
generated to every X steps. You can have whatever you wish as a callback,
moving the progress bar or not.
Alexandre
On Apr 8, 2015, at 9:50 AM, Tudor Girba <tudor(a)tudorgirba.com> wrote:
We need a better way of modeling that :)
Doru
On Wed, Apr 8, 2015 at 2:44 PM, Alexandre Bergel <alexandre.bergel(a)me.com>
wrote:
I have cleaned a bit your code with something like:
doExecute: nodeElements
self start: nodeElements.
self isJobInstalled
ifTrue: [ self runLayoutInJob ]
ifFalse: [ self runLayoutSimply ].
alpha := 0.
nodes do: [ :e | translator translateTopLeftOf: e to: e position ]
It is in version .816 of Roassal2.
We should be able to run the layout without job. This is important for us
Thanks!
Alexandre
On Apr 7, 2015, at 5:04 PM, Peter Uhnák
<i.uhnak(a)gmail.com> wrote:
Out of curiosity I dug a little deeper and was happy
to learn about a Job
and more about Pharo internals.
In any case, try replacing
RTForceBasedLayout>>doExecute: with this
~~~~~~~~~~~~~~~~~~~~~~~~~
doExecute: nodeElements
self start: nodeElements.
[ :job |
job
title: 'Laying out elements';
min: 1 - alpha;
max: 1.
nbIterations = 0
ifTrue: [ [ alpha := alpha * 0.99. alpha > 0.005 ]
whileTrue: [ self step. job currentValue: 1 - alpha ] ]
ifFalse: [ nbIterations timesRepeat: [ alpha :=
alpha * 0.99. self step. job currentValue: 1 - alpha ] ]
] asJob run.
alpha := 0.
nodes do: [ :e | translator translateTopLeftOf: e to: e position ].
~~~~~~~~~~~~~~~~~~~~~~~~~
it's bit messy (and doesn't account for
nbIterations), but its a proof of
concept.
I thing that it makes sense to create execution
indicator without
progress (with spinner for example)
What can be done is to display alpha on progress bar.
From current value
to 0.005 or whatever there is.
I was thinking more something like this
http://www.barchart.com/shared/images/progress_bar.gif or thsi
https://i.stack.imgur.com/gz9GK.gif
Peter
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