Beginners February 2011

beginners@lists.squeakfoundation.org

16 participants
13 discussions

Is there a tandard way to attach context menus
by Herbert König 04 Nov '11

04 Nov '11

Hello all, is there a standard way to attach a context menu to a morph? It's fairly easy to do by checking for yellowButtonPressed and manually firing up a MenuMorph. But it is sufficient to implement #addCustomMenuItems:hand: to get an enhanced Halo menu while #addYellowButtonMenuItemsTo:event: and #hasYellowButtonMenu don't help. So is there a predefined way without everybody doing his own? Thanks, Herbert mailto:herbertkoenig@gmx.net

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Omnibrowser help
by Rob Rothwell 14 Aug '11

14 Aug '11

Are there some tips/documentation somewhere on getting the most out of the OmniBrowser? The MulitpleSelection browser looks interesting (sort of like the tabbed browser in VisualWorks), but I don't quite understand its behaviour and what method it decides to show in which pane when you move around or save changes. On the same topic, can anyone point me toward how I could add a new item to the class context menu in the OmniBrowser? I want to add a new template selection menu item (like "new class template" and "new trait template") because I have created a method that creates TWO classes at the same time for an Aida application (A domain model class AND its associated WebApp class). Thanks, Rob Rothwell

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Returned values
by Gary Dunn 28 Feb '11

28 Feb '11

While studying DBus code I came across a method that appears to set a class variable and return the value. In DBusConnection>> sessionBus ^SessionBus := self getBus: 0 from: SessionBus and SessionBus is a class variable. Why return the value? Why not have the sender examine the value of SessionBus? Is it only a matter of style or is this more efficient? Gary Dunn Open Slate Project http://openslate.org

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The Weekly Squeak Summary No. 23: Jan 31 - Feb 27, 2011
by Michael Haupt 28 Feb '11

28 Feb '11

Dear Squeakers, welcome to this edition of The WeeklySqueakSummary, an (in principle) monthly but somewhat traffic-dependent report on what's going on in the world of Squeak based on the WeeklySqueak blog. Again, we did not have too many posts during the past four weeks - two this time. The "big news" is that Squeak 4.2 is finally there [1]. From what has been going on on squeak-dev in terms of trunk commit messages and release discussions, one could conclude that some important things have been changed. Most of them are somewhat under the hood, but all in all, this release looks like a very good one. The details are in the post - and in the image. ;-) IWST, the "research track" of ESUG, is calling for contributions [2]. The past month's news items: [1] Squeak 4.2 final now out! http://news.squeak.org/2011/02/03/squeak-4-2-final-now-out/ [2] Call for papers for IWST in Edinburgh http://news.squeak.org/2011/02/25/call-for-papers-for-iwst-in-edinburgh/ You can find this and much more on The WeeklySqueak blog, the newsblog dedicated to the world of Squeak: http://news.squeak.org/ Subscribe to the WeeklySqueak RSS feed: http://news.squeak.org/feed/ Happy squeaking, Michael

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How can I create a script from within a script?
by Steve Thomas 28 Feb '11

28 Feb '11

I am playing with the idea of creating a scripting language for kids. So given the script below p1 is being set to an object/Player named Ellipse: script2 | t1 t2 p1 | p1 := Ellipse t1 := 'forward'. t2 := 5 How can I get it to "do/execute": *p1 forward: 5* Stephen

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How can I execute a script on carriage return?
by Steve Thomas 28 Feb '11

28 Feb '11

I just discovered Bots Inc. and am trying to render some of the lessons within Etoys. In Bots Incs. when you click on a Bot a balloon pop's up and when you enter text and hit <return> the text you entered is executed. How can I execute a command (do it) on <return>? Also, I have a script that on mouse over prints: Im a Bot. My position is: 769.5(a)452.5 and my direction is:34.3357941965284 How do I print integers or specify that I only want 2 digits to the right of the decimal point? (Below is my script). script1 | tmpStr | tmpStr := 'Im a Bot.\My position is: ' withCRs , self getLocation printString , '\and my direction is:' withCRs , self getHeading printString. self sayText: tmpStr Thanks, Stephen

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How can I create a scripting tile in Etoys/Squeak
by Steve Thomas 15 Feb '11

15 Feb '11

I am working on learning squeak and want to know how to create a scripting tile for use in Etoys. Thanks, Stephen

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About primitiveClipboardText in Clipboard class
by ericgao 14 Feb '11

14 Feb '11

I just add Transcript show in Clipboard ::clipboardText as following: clipboardText "Return the text currently in the clipboard. If the system clipboard is empty, or if it differs from the Smalltalk clipboard text, use the Smalltalk clipboard. This is done since (a) the Mac clipboard gives up on very large chunks of text and (b) since not all platforms support the notion of a clipboard." | string decodedString | string := self primitiveClipboardText withSqueakLineEndings. Transcript show: string. ...... after primitiveClipboardText get the content from paste with "$一 asInteger". I found the result of string is different between 4.1 and 3.9. Does it mean before primitiveClipboard, the Squeak has done some decoding? -- View this message in context: http://forum.world.st/About-primitiveClipboardText-in-Clipboard-class-tp330… Sent from the Squeak - Beginners mailing list archive at Nabble.com.

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Which clase could be used for input the charCode and draw out the font
by ericgao 14 Feb '11

14 Feb '11

As now I could know the charcode for chinese character, i want to take a try input the code directly in somewhere and see how it translate to display on the workspace or transcripts I wonder whether there is a chartable provide for the code identified? and where the font store in Squeak, some dictionary? -- View this message in context: http://forum.world.st/Which-clase-could-be-used-for-input-the-charCode-and-… Sent from the Squeak - Beginners mailing list archive at Nabble.com.

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Any Beginner Introduction on Squeak Usage
by ericgao 12 Feb '11

12 Feb '11

Have used Squeak for some days, but it seems I still don't have very clear idea on how to use Squeak for develop, only know to open class browser to type in code and run in workspace and debug step by step, any introduction on other function of Squeak? and any API reference for Squeak development environment? How could a create a fresh image for Squeak developement? And after clicking on create a new project, squeak go to a grey place, how could I get back? Only i could do is closing the Squeak.... -- View this message in context: http://forum.world.st/Any-Beginner-Introduction-on-Squeak-Usage-tp3300677p3… Sent from the Squeak - Beginners mailing list archive at Nabble.com.

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Beginners February 2011