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Slow World Menu opening

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abergel

Slow World Menu opening

Hi!

When I open the world menu, the mouse cursor is intensively blinking, and opening the menu is _very slow_. This bugs has been around for a couple of weeks already. Am I the only one to see it?

I have checked the cause, and apparently the problem disappear by removing the use of “Cursor read showWhile:”. The following method:
-=-=-=-=-=-=-=-=-=
ImageReadWriter>>formFromStream: aBinaryStream
"Answer a ColorForm stored on the given stream. closes the stream"
| reader readerClass form |
readerClass := self readerClassFromStream: aBinaryStream.
reader := readerClass new on: aBinaryStream.
Cursor read showWhile:
[ form := reader nextImage.
reader close ].
^ form
-=-=-=-=-=-=-=-=-=

May be rewritten as:
-=-=-=-=-=-=-=-=-=
ImageReadWriter>>formFromStream: aBinaryStream
"Answer a ColorForm stored on the given stream. closes the stream"
| reader readerClass form |
readerClass := self readerClassFromStream: aBinaryStream.
reader := readerClass new on: aBinaryStream.
form := reader nextImage.
reader close.
^ form
-=-=-=-=-=-=-=-=-=

However, changing the cursor has been around for quite a long time. It is strange that the slow menu is surfacing only now.

Any idea why?

Cheers,
Alexandre

--
_,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:
Alexandre Bergel http://www.bergel.eu
^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;.

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Marcus Denker-4

Re: [Pharo-users] Slow World Menu opening

> On 26 Aug 2015, at 02:57, Alexandre Bergel <[hidden email]> wrote:
>
> Hi!
>
> When I open the world menu, the mouse cursor is intensively blinking, and opening the menu is _very slow_. This bugs has been around for a couple of weeks already. Am I the only one to see it?
>

I saw it one day after coming back from ESUG. I added an issue tracker entry. Nicolai immediately commented that he did not see any slowdown.
I rebooted my machine, never saw the problem again.

But removing the #showWhile: is a good idea.

> I have checked the cause, and apparently the problem disappear by removing the use of “Cursor read showWhile:”. The following method:
> -=-=-=-=-=-=-=-=-=
> ImageReadWriter>>formFromStream: aBinaryStream
> "Answer a ColorForm stored on the given stream. closes the stream"
> | reader readerClass form |
> readerClass := self readerClassFromStream: aBinaryStream.
> reader := readerClass new on: aBinaryStream.
> Cursor read showWhile:
> [ form := reader nextImage.
> reader close ].
> ^ form
> -=-=-=-=-=-=-=-=-=
>
> May be rewritten as:
> -=-=-=-=-=-=-=-=-=
> ImageReadWriter>>formFromStream: aBinaryStream
> "Answer a ColorForm stored on the given stream. closes the stream"
> | reader readerClass form |
> readerClass := self readerClassFromStream: aBinaryStream.
> reader := readerClass new on: aBinaryStream.
> form := reader nextImage.
> reader close.
> ^ form
> -=-=-=-=-=-=-=-=-=
>
> However, changing the cursor has been around for quite a long time. It is strange that the slow menu is surfacing only now.
>
> Any idea why?
>
> Cheers,
> Alexandre
>
> --
> _,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:
> Alexandre Bergel http://www.bergel.eu
> ^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;.
>
>
>
>

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