December 2010 - Pharo-users

Re: [Pharo-users] Keyboard shortcuts

by Tony Fleig

If you want to define your own global keyboard shortcuts, you can try my GlobalKeys for Pharo package (http://www.squeaksource.com/GlobalKeys) I use it to launch windows in pre-defined locations and with pre-defined sizes and launch an external web browser during Seaside development. I also made Ctrl-Tab switch between Pharo windows ;). TF On Sun, Dec 12, 2010 at 5:31 AM, Daniel Klein <danielk(a)danielk.us> wrote: > I have discovered a bunch of keyboard shortcuts on my own but is there > someplace I can find a full list? > > A specific shortcut that would really be convenient is to be able to switch > between Pharo 'morphs', like how I do with alt+tab on Windows. For example, > I'm always switching between a workspace and the system browser. I'd like > not to have to reach for the mouse each time. Is there such a beast? > > Dan >

Dec. 12, 2010

Re: [Pharo-users] Keyboard shortcuts

by Mariano Martinez Peck

On Sun, Dec 12, 2010 at 2:31 PM, Daniel Klein <danielk(a)danielk.us> wrote: > I have discovered a bunch of keyboard shortcuts on my own but is there > someplace I can find a full list? > > I remember this: http://forum.world.st/Keyboard-shortcuts-cheatsheet-td1583170.html and this: http://lists.gforge.inria.fr/pipermail/pharo-project/2009-December/017196.h… > A specific shortcut that would really be convenient is to be able to switch > between Pharo 'morphs', like how I do with alt+tab on Windows. For example, > I'm always switching between a workspace and the system browser. I'd like > not to have to reach for the mouse each time. Is there such a beast? > > > Yes, there is :) In mac it is with cmd + arrows (left/right) In linux/windows I guess it could be alt + arrow, or alt + ctrl + arrow, or ctrl + arrow...etc. Cheers mariano

Dec. 12, 2010

Keyboard shortcuts

by Daniel Klein

I have discovered a bunch of keyboard shortcuts on my own but is there someplace I can find a full list? A specific shortcut that would really be convenient is to be able to switch between Pharo 'morphs', like how I do with alt+tab on Windows. For example, I'm always switching between a workspace and the system browser. I'd like not to have to reach for the mouse each time. Is there such a beast? Dan

Dec. 12, 2010

Re: [Pharo-users] SandstoneDB and SortedCollection

by David Zmick

I am sorry, I should have said also that I am using SandstoneDb to try to save these objects. A SortedCollection is the type of collection I need, but SandstoneDb cannot save it. Sorry I failed to specify that. David Zmick /dz0004455\ On Sat, Dec 11, 2010 at 5:14 PM, Alan Rodas <alanrodas(a)gmail.com> wrote: > Sometimes an image is worth a thousand words. So this image I made may help > you. > > Also, as Mariano points out, remember that you can convert from one > collection to another by sending the message #asCollectionName replacing the > CollectionName for the collection you want. > > So for example to remove all duplicates from a collection, asSet is a > simple and pretty way to do it. > > Cheers > -- > Alan Rodas Bonjour >

Dec. 11, 2010

Re: [Pharo-users] SandstoneDB and SortedCollection

by Alan Rodas

Sometimes an image is worth a thousand words. So this image I made may help you. Also, as Mariano points out, remember that you can convert from one collection to another by sending the message #asCollectionName replacing the CollectionName for the collection you want. So for example to remove all duplicates from a collection, asSet is a simple and pretty way to do it. Cheers -- Alan Rodas Bonjour

Dec. 11, 2010

Re: [Pharo-users] SandstoneDB and SortedCollection

by Alan Rodas

Sometimes an image is worth a thousand words. So this image I made may help you. Also, as Mariano points out, remember that you can convert from one collection to another by sending the message #asCollectionName replacing the CollectionName for the collection you want. So for example to remove all duplicates from a collection, asSet is a simple and pretty way to do it. Cheers -- Alan Rodas Bonjour

Dec. 11, 2010

Re: [Pharo-users] SandstoneDB and SortedCollection

by Mariano Martinez Peck

In addition the great answer of Alan, I want to add that you should be really careful about using SortedCollections, because adding is much slower than in other collections. So....what yo can do, depending on your needs, is to use a OrderedCollection or similar, and then, when you need it to be sorted, you use the message #asSortedCollection: cheers mariano On Sat, Dec 11, 2010 at 11:27 PM, Alan Rodas <alanrodas(a)gmail.com> wrote: > The problem seams to be the kind of collection you are using. > > > A SortedCollection holds elements sorted by a given criteria (In the form > of a block). > When you add elements to an instance of SortedCollection, the rule is > execute with the new object added, and the contained object to determinate > the object position. > Now, the at: put: message in this kind of collections (SortedCollection is > a specific class of OrderedCollection), is used to put an object instead of > another. > But in a SortedCollection, if you replace an object by other, then you are > breaking the sort of the collection. > That's why SortedCollection overrides at:put: as self shouldNotImplement, > which raises an exception indicating that you send a message that should not > be implemented by that object (Although for me, this reflects a bad design > in the hierarchy of Collection) > > So the possible solutions are: > -If what you want is sort the elements by a giving criteria, use add: to > add the objects to the collection. > -If you want to sort the collection by the order in which you added the > elements, use OrderedCollection instead. You should use add: for this to, as > at: put: is used to replace an object by another. > -If you have a fixed number of elements to add, you should use an Array, > you should set the object of the array using at: put: > > > Hope that helps. > And, if I misunderstood you problem, please forgive me. > > Cheers > -- > Alan Rodas Bonjour > >

Dec. 11, 2010

Re: [Pharo-users] SandstoneDB and SortedCollection

by Alan Rodas

The problem seams to be the kind of collection you are using. A SortedCollection holds elements sorted by a given criteria (In the form of a block). When you add elements to an instance of SortedCollection, the rule is execute with the new object added, and the contained object to determinate the object position. Now, the at: put: message in this kind of collections (SortedCollection is a specific class of OrderedCollection), is used to put an object instead of another. But in a SortedCollection, if you replace an object by other, then you are breaking the sort of the collection. That's why SortedCollection overrides at:put: as self shouldNotImplement, which raises an exception indicating that you send a message that should not be implemented by that object (Although for me, this reflects a bad design in the hierarchy of Collection) So the possible solutions are: -If what you want is sort the elements by a giving criteria, use add: to add the objects to the collection. -If you want to sort the collection by the order in which you added the elements, use OrderedCollection instead. You should use add: for this to, as at: put: is used to replace an object by another. -If you have a fixed number of elements to add, you should use an Array, you should set the object of the array using at: put: Hope that helps. And, if I misunderstood you problem, please forgive me. Cheers -- Alan Rodas Bonjour

Dec. 11, 2010

Re: [Pharo-users] Money AND Feature requests

by Geoffroy Couprie

On Sat, Dec 11, 2010 at 5:21 PM, James Ashley <james.ashley(a)gmail.com> wrote: > On Sat, Dec 11, 2010 at 7:16 AM, Geoffroy Couprie <geo.couprie(a)gmail.com> wrote: >> Hello, >> >> On Sat, Dec 11, 2010 at 10:20 AM, StÃ©phane Ducasse >> <stephane.ducasse(a)inria.fr> wrote: > >>> >>> Good! >>> Tell us what architecture we can use for that. I should find some time to build a association of loi 1901 and get a paypal account for pharo. >>> >> >> You should take a look at Flattr for donations. > > I think the basics might be a good idea, but flattr just doesn't seem > like a useful/viable choice to me. They're way too vague about how > much of the money they keep, and it's really set up as a subscription > service (last time I checked, anyway). It's just that you get to > decide how you distribute your $x per month (as long as you stay on > top of things and make that decision every month). > > >> Also, in case some >> want to donate for specific feature, there are crowdfunding solutions >> like kickstarter. > > Kickstarter sounds like it might be a *much* better choice for this > sort of thing. > > I'm not sure how good it would be for on-going projects, though. > > e.g. "You paid $50 last month to have Geoffrey spend a month working > on feature x. He estimates that he's 75% done. Will you spend $12.50 > to let him spend another week on it?" > Kickstarter is based on "all or nothing". If you don't finish, you don't receive the money. It's like contracting work, if you don't deliver, you're not paid, and many people have no problem with that :)

Dec. 11, 2010

SandstoneDB and SortedCollection

by David Zmick

I have a User that hold a Collection of decisions. Each decision holds a sorted collection of candidates and a sorted collection of objectives. User is a subclass of SDActiveRecord. I have class side code to create and example user with an example decision. this code fails with "Error: This message is not appropriate for this object" u := User example. u save This is what is at the very top of the debugging output: SortedCollection(Object)>>error: SortedCollection(Object)>>shouldNotImplement SortedCollection>>at:put: [] in SortedCollection(SequenceableCollection)>>sandstoneDeepCopyVisits: I am not sure where to go from here. Thank you for any help you might have! David Zmick /dz0004455\

Dec. 11, 2010