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<p>Hi Nico,</p>
<p>I think there's no performance penalty. #redrawNeeded just sets a
flag to mark the Morph for a redraw for the next iteration of
Morphic "drawing loop". <br>
</p>
<p>The change does not happen immediately.<br>
</p>
<p>So, you can mark as many Morphs as you want for redrawing and for
layout, and they are updated in next Morphic loop iteration.</p>
<p>If that's the case, then I think it would be good to add
#redrawNeeded to the #label: protocol.<br>
</p>
<p>I can can be wrong, though..<br>
</p>
<p> Mariano<br>
</p>
<div class="moz-cite-prefix">El 8/6/24 a las 12:58, Nicolás Papagna
Maldonado escribió:<br>
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<div dir="auto">
<div>Hi folks!</div>
<div dir="auto"><br>
</div>
<div dir="auto">Not an expert, but my hunch is that those
methods don't call #redrawNeeded because it's up to the caller
to decide that.</div>
<div dir="auto"><br>
</div>
<div dir="auto">Escenario: I am changing many things about a
morph/button (say label, color, etc) and I want it to be
redrawn only when Im done to keep things optimized.</div>
<div dir="auto"><br>
</div>
<div dir="auto">Maybe that's the case (I'm sure that Juan knows
about this).</div>
<div dir="auto"><br>
</div>
<div dir="auto">Cheers,</div>
<div dir="auto">Nico PM</div>
<div dir="auto"><br>
</div>
<div dir="auto"><br>
<br>
<div class="gmail_quote" dir="auto">
<div dir="ltr" class="gmail_attr">On Fri, Jun 7, 2024, 21:12
Mariano Montone via Cuis-dev <<a
href="mailto:cuis-dev@lists.cuis.st"
moz-do-not-send="true" class="moz-txt-link-freetext">cuis-dev@lists.cuis.st</a>>
wrote:<br>
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style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><br>
El 7/6/24 a las 16:14, Mark Volkmann via Cuis-dev
escribió:<br>
> I opened an Inspect window for a
PlugglableButtonMorph that is visible <br>
> in the world.<br>
> I entered this in the bottom pane and pressed cmd-d
to "Do it":<br>
> self label: 'My New Label'.<br>
> The label on the button did not update.<br>
Yes. I think a #redrawNeeded should be sent in #label: or
#label:font: <br>
implementations.<br>
> Then I entered this and pressed cmd-d:<br>
> self color: Color pink.<br>
> The background color changed AND the label updated.<br>
> Is there a reason why the label update didn't occur
until I <br>
> changed the color?<br>
<br>
The reason is that the #label: message does not call
#redrawNeeded <br>
(although I think it should).<br>
<br>
You can solve it by sending it yourself: myButton label:
'My label'; <br>
redrawNeeded.<br>
<br>
Same problem if the change of a button label affects the
layout (it <br>
does). You need to call
#someSubmorphPositionOrExtentChanged on the <br>
button's owner manually yourself.<br>
<br>
Not ideal.<br>
<br>
<br>
Mariano<br>
<br>
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