[Cuis] Menu 'Help' / 'Useful expressions' text window --> workspace?

[H. Hirzel]

Hello Juan,

Another candidate code snippet I suggest to add

"taken from
http://wiki.squeak.org/squeak/52
works in Squeak but not in Cuis"

m := RectangleLikeMorph new.
m layoutPolicy: TableLayout new.
m listDirection: #leftToRight.
m hResizing: #shrinkWrap; vResizing: #shrinkWrap.
m layoutInset: 20; cellInset: 10.
4 timesRepeat:[ m addMorph: (RectangleMorph new color: (Color random)) ].
m openInWorld.


I think it would be good to include both, the not working Squeak
version and the fixed one for Cuis.

And may even put that into another help workspace so that we can add
more Morphic examples for people to learn quickly.

An extension from the example above could be to have 4 buttons and add
a label and block to each of them thus creating a launcher.

The Workspace may include as well suggestions which class comments to
consider for further reading.

Kind regards
Hannes

On 1/4/13, H. Hirzel <hannes.hirzel at gmail.com> wrote:
> Thank you, Juan,  for adding many new 'useful expressions'.
>
> In particular this one is interesting
>     "'Anaylize memory usage by class."
>     (String streamContents: [ :strm | SpaceTally new
> printSpaceAnalysis: 1 on: strm ]) edit.
>
> for comment see new thread.
>
> -- Hannes
>
>
>
> On 1/4/13, Juan Vuletich <juan at jvuletich.org> wrote:
>> Hi Hannes,
>>
>> Just uploaded 3 new updates. The last one includes your updated text. I
>> added your requests, and a couple more I found.
>>
>> BTW, remember that in Cuis you have World / Open / Message Names to look
>> for selectors!
>>
>> Cheers,
>> Juan Vuletich
>>
>> Ps. Too tired right now to upload an updated image... Please use the
>> change sets.
>>
>> H. Hirzel wrote:
>>> Thank you Juan for adding my example script for unloading the tests.
>>> This is surely something I will have forgotten in 4 weeks and it is
>>> very handy to still have it then.
>>>
>>> The other things are useful as well. In particular the expression for
>>> finding method names. I am now used to the search box in Squeak and
>>> have been missing this a lot.
>>>
>>>
>>>     Symbol selectorsContaining: 'rsCon'.
>>>
>>> is a useful workaround.
>>>
>>>
>>> I copy in the content of the 'Useful expressions' workspace as it is
>>> of now below.
>>>
>>> I added comments and suggestions for more expressions (marked with
>>> >>>>>)
>>>
>>> Kind regards
>>> -- Hannes
>>>
>>>
>>>
>>>
>>>
>>> "Querying the system"
>>>
>>> SystemOrganization categories.
>>> SystemOrganization categoryOfElement: #Morph.
>>> Editor organization categoryOfElement: #clearSelection.
>>>
>>>
>>> "find selectors"
>>> Symbol selectorsContaining: 'rsCon'.
>>> Symbol selectorsContaining: 'iso8859'.    "Cuis uses iso885915
>>> internally and UTF8 externally"
>>>
>>>
>>> "Example for loading an external package; adapt to your needs"
>>>
>>> slash _ FileDirectory slash.
>>> {
>>>   'packages', slash, 'PetitParser', slash, 'PetitParser.pck' .
>>>   'packages', slash, 'PetitParser', slash, 'PetitTests.pck' .
>>>   'packages', slash, 'PetitParser', slash, 'PetitTutorial.pck'
>>> } do: [ :fileName | CodeFileBrowser installPackage:
>>> 	(FileStream concreteStream readOnlyFileNamed: fileName) ].
>>>
>>>
>>> "To create a *.pck.st file for each category with tests and  then to
>>> remove these categories"
>>> (SystemOrganization categoriesMatching: '*Test*')
>>> 	do: [ :cat | (CodePackage named: cat
>>> 				createIfAbsent: true
>>> 				registerIfNew: false) save.
>>> 			SystemOrganization removeSystemCategory: cat.
>>> 	]
>>>
>>>
>>> ">>>> maybe add something more about CodePackages, e.g. list of
>>> CodePackages which are not saved and save them in one go"
>>>
>>>
>>> "Globals"
>>> Cursor wait showWhile: [Sensor waitButton].
>>>
>>>
>>> ">>>> Display the list of Global Variables on the Transcript"
>>>
>>>
>>>
>>> "Source code management"
>>> ChangeList browseRecentLog.
>>>
>>> ">>>> maybe add something about CodePackages"
>>>
>>>
>>> "Space and object count statistics"
>>> Smalltalk bytesLeft asStringWithCommas.
>>> Symbol instanceCount.
>>>
>>> ">>>> add calculation of the 10 Object types whose instances used most
>>> of the space"
>>>
>>>
>>>
>>> "Performance measurement"
>>> Time millisecondsToRun: [Smalltalk allCallsOn: #asOop].
>>> MessageTally spyOn: [Smalltalk allCallsOn: #asOop].
>>>
>>>
>>> "Opening a Text editor"
>>> 'Something' editLabel: 'Title'.
>>>
>>> ">>>> opening a workspace"
>>>
>>>
>>>
>>>
>>>
>>> On 1/2/13, H. Hirzel <hannes.hirzel at gmail.com> wrote:
>>>
>>>> An example script
>>>>
>>>> "To create a *.pck.st file for each category with tests afterwards to
>>>> remove these categories"
>>>>
>>>> (SystemOrganization categoriesMatching: '*Test*')
>>>> 	do: [ :cat | (CodePackage named: cat
>>>> 				createIfAbsent: true
>>>> 				registerIfNew: false) save.	
>>>> 			    SystemOrganization removeSystemCategory: cat.
>>>> 	 ]
>>>>
>>>>
>>>>
>>>> On 1/2/13, H. Hirzel <hannes.hirzel at gmail.com> wrote:
>>>>
>>>>> At the moment I'd like to see some reporting snippets on classes and
>>>>> categories. And loading scripts like the one you recently helped me
>>>>> with, Juan.
>>>>>
>>>>>
>>>>> | slash |
>>>>> slash _ FileDirectory slash.
>>>>> {
>>>>>   'packages', slash, 'PetitParser', slash, 'PetitParser.pck' .
>>>>>   'packages', slash, 'PetitParser', slash, 'PetitTests.pck' .
>>>>>   'packages', slash, 'PetitParser', slash, 'PetitTutorial.pck'
>>>>> }
>>>>> do:
>>>>> [ :fileName | CodeFileBrowser installPackage:
>>>>>                  (FileStream concreteStream readOnlyFileNamed:
>>>>> fileName)
>>>>> ]
>>>>>
>>>>>
>>>>>
>>>>> And for example simple things like
>>>>>
>>>>> SystemOrganization categories
>>>>>
>>>>>
>>>>> BTW what is the difference between SystemOrganization  and
>>>>> SystemOrganizer. Code snippets would be illustrative.
>>>>>
>>>>> And our old friends which always give much discussions: Reading and
>>>>> writing a text file (FileDirectory examples we recently had on the
>>>>> Pharo list)
>>>>>
>>>>> On 1/2/13, Germán Arduino <garduino at gmail.com> wrote:
>>>>>
>>>>>> Not that I've in mind at this moment, but a workspace with "Useful
>>>>>> Expressions" is really useful :)
>>>>>>
>>>>>> 2013/1/2 Juan Vuletich <juan at jvuletich.org>
>>>>>>
>>>>>>
>>>>>>> H. Hirzel wrote:
>>>>>>>
>>>>>>>
>>>>>>>> Hello
>>>>>>>>
>>>>>>>> I realize that when I choose the menu 'Help' / 'Useful expressions'
>>>>>>>> I
>>>>>>>> get a editor window and not a workspace.
>>>>>>>>
>>>>>>>> I think a workspace would be better.
>>>>>>>>
>>>>>>>> And we need to test if really all the expressions there still work.
>>>>>>>>
>>>>>>>> --Hannes
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>> Yes, reviewing them would be a good service. Maybe we decide to
>>>>>>> completely
>>>>>>> remove it... Anybody has suggestions on really useful expressions to
>>>>>>> be
>>>>>>> included?
>>>>>>>
>>>>>>> And yes, it should be a workspace!
>>>>>>>
>>>>>>> Cheers,
>>>>>>> Juan Vuletich
>>>>>>>
>>>>>>>
>>>>>>> ______________________________**_________________
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>>>>>>> Cuis at jvuletich.org
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>>>>>>>
>>>>>>>
>>>
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>>
>>
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