Wonder about the ways to handle 'time' in Squeak.
For example, LOGO has commands for wait/waituntil x amount, or 'timing'.
Steve Linduska Instructional Technology
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Am 06.10.2006 um 18:17 schrieb Steve Linduska:
Wonder about the ways to handle 'time' in Squeak.
For example, LOGO has commands for wait/waituntil x amount, or 'timing'.
Hi Steve,
do you mean in Etoys or in Smalltalk? In Smalltalk code, you can use "(Delay forMilliseconds: x) wait". However, this blocks the current process, that is the whole UI in Morphic.
Given your LOGO reference I guess you mean Etoys. Etoys version 1 (the current, Morphic-based version) does not have this feature, because it depends on scripts ticking in parallel (blocking would prevent that concurrency). You can, however, set the ticking rate of a script to adjust the speed at which actions are performed.
Etoys 2 (based on Tweak) does support waiting, it simply provides a "wait x sec" tile. Internally this uses a Delay, but since Tweak is multi-threaded (in contrast to Morphic), other scripts will continue to operate.
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This is a public mailing list with public archives, so this disclaimer is nonsense.
- Bert -
in parallel (blocking would prevent that concurrency). You can, however, set the ticking rate of a script to adjust the speed at which actions are performed.
Can you ?
Where is all this information?
Keith
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Am 07.10.2006 um 14:47 schrieb keith hodges:
in parallel (blocking would prevent that concurrency). You can, however, set the ticking rate of a script to adjust the speed at which actions are performed.
Can you ?
Hold down on the ticker clock icon.
Where is all this information?
Most UI elements in etoys have bubble help if you hover over them, including that ticker icon.
Also, it probably is in the Powerful Ideas book. This is a must-read when you start with etoys. It might also be mentioned on the Squeakland website, which is another required reading place.
However, most information still is passed on orally, in hands-on workshops, at squeak fest etc. We as a community are in dire need of people documenting all the cool stuff that is in Etoys and Squeak, and making it available at a central place for easy finding.
There is even a lot written already, but hard to find. I just googled for "squeak ticker adjust" and found a PDF created by Lucy Qiu of Don Mills Middle School that describes this:
"If you want to adjust the speed of your animation, click on the green ticker but don’t let go of the mouse until the green ticker turns gray. A menu will appear after that, you can select the speed you want from the menu, 1 is the slowest you can get."
Of course, by typing in a fraction you can get even slower - this is the problem with beginner's tutorials, in that you do not want to mention all available options right up front. So many of the more useful tips are never written down.
Anyway, collecting this stuff in a comprehensive manner would be very useful.
- Bert -
Next Question,
why when I have a component that is ticking does its pickup behaviour change. Picking it up creates a copy of the component rather than moving it?
thanks in advance
keith
Bert Freudenberg wrote:
Am 07.10.2006 um 14:47 schrieb keith hodges:
in parallel (blocking would prevent that concurrency). You can, however, set the ticking rate of a script to adjust the speed at which actions are performed.s.squeakfoundation.org/mailman/listinfo/beginners
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Next Question,
why when I have a component that is ticking does its pickup behaviour change. Picking it up creates a copy of the component rather than moving it?
thanks in advance
keith
Bert Freudenberg wrote:
Am 07.10.2006 um 14:47 schrieb keith hodges:
in parallel (blocking would prevent that concurrency). You can, however, set the ticking rate of a script to adjust the speed at which actions are performed.s.squeakfoundation.org/mailman/listinfo/beginners
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Am I right in thinking there is way to get a sub-morph to automatically resize as its owner morph resizes?
I've experimented with TableLayout and it seems to work the opposite way. You can get a morph to "shrink-wrap" around its components but you cannot get submorphs to expand or shrink automatically to fill a table cell.
You'd think that using "space fill" on the child layout menu might do something like this - but it doesn't.
As for Proportional Layout - I can't even understand what it's supposed to do. Nothing as far as I can tell.
I was hoping that TableLayout might work like the layout managers you get in tk, Java, Qt, wxWindows etc. But it seems much more primitive.
Am I missing something? Or is this a basic deficiency that explains why many of the example apps that come with squeak - games, editors etc either do not resize or become an unusable mess if you resize them?
- Ken
Am 08.10.2006 um 13:28 schrieb Kenneth Payne:
Am I right in thinking there is way to get a sub-morph to automatically resize as its owner morph resizes?
I've experimented with TableLayout and it seems to work the opposite way. You can get a morph to "shrink-wrap" around its components but you cannot get submorphs to expand or shrink automatically to fill a table cell.
You'd think that using "space fill" on the child layout menu might do something like this - but it doesn't.
This should actually work. I think you must not set the container to shrinkWrap.
As for Proportional Layout - I can't even understand what it's supposed to do. Nothing as far as I can tell.
Right, you must give it a layout frame. Perhaps this helps:
http://minnow.cc.gatech.edu/squeak/2141
- Bert -
Bert-
Thanks for your help.
This should actually work. I think you must not set the container to shrinkWrap.
I've been experimenting with layout by embedding morphs and using the morph menu to change layout etc.
I think I've tried every combination of layouts and child layouts but I've never got a sub-morph fill a cell or to change size with its container. I must be doing something wrong.
Right, you must give it a layout frame. Perhaps this helps:
I've looked at the example. I'll do some experimenting with it this week.
Thanks again for your help.
- Ken
On Sunday 08 October 2006 14:48, Bert Freudenberg wrote:
Am 08.10.2006 um 13:28 schrieb Kenneth Payne:
Am I right in thinking there is way to get a sub-morph to automatically resize as its owner morph resizes?
I've experimented with TableLayout and it seems to work the opposite way. You can get a morph to "shrink-wrap" around its components but you cannot get submorphs to expand or shrink automatically to fill a table cell.
You'd think that using "space fill" on the child layout menu might do something like this - but it doesn't.
This should actually work. I think you must not set the container to shrinkWrap.
As for Proportional Layout - I can't even understand what it's supposed to do. Nothing as far as I can tell.
Right, you must give it a layout frame. Perhaps this helps:
http://minnow.cc.gatech.edu/squeak/2141
- Bert -
Beginners mailing list Beginners@lists.squeakfoundation.org http://lists.squeakfoundation.org/mailman/listinfo/beginners
There is enough horsepower in the morphic layout controls to do most common layouts.
However, most people find the terminology bizarre and it is not at all straightforward to tap that power.
When you figure it out, it would be really nice if you would write up what you learn.
-Todd Blanchard
On Oct 8, 2006, at 11:08 AM, Kenneth Payne wrote:
Bert-
Thanks for your help.
This should actually work. I think you must not set the container to shrinkWrap.
I've been experimenting with layout by embedding morphs and using the morph menu to change layout etc.
I think I've tried every combination of layouts and child layouts but I've never got a sub-morph fill a cell or to change size with its container. I must be doing something wrong.
Right, you must give it a layout frame. Perhaps this helps:
I've looked at the example. I'll do some experimenting with it this week.
Thanks again for your help.
- Ken
On Sunday 08 October 2006 14:48, Bert Freudenberg wrote:
Am 08.10.2006 um 13:28 schrieb Kenneth Payne:
Am I right in thinking there is way to get a sub-morph to automatically resize as its owner morph resizes?
I've experimented with TableLayout and it seems to work the opposite way. You can get a morph to "shrink-wrap" around its components but you cannot get submorphs to expand or shrink automatically to fill a table cell.
You'd think that using "space fill" on the child layout menu might do something like this - but it doesn't.
This should actually work. I think you must not set the container to shrinkWrap.
As for Proportional Layout - I can't even understand what it's supposed to do. Nothing as far as I can tell.
Right, you must give it a layout frame. Perhaps this helps:
http://minnow.cc.gatech.edu/squeak/2141
- Bert -
Beginners mailing list Beginners@lists.squeakfoundation.org http://lists.squeakfoundation.org/mailman/listinfo/beginners
Beginners mailing list Beginners@lists.squeakfoundation.org http://lists.squeakfoundation.org/mailman/listinfo/beginners
Todd -
Nothing is more irritating than the lack of documentation for squeak.
If I do ever sort out how to layout sub-morphs, I will certainly write it up for others and in words of one syllable so people like me can understand it.
By the way, that proportional layout code that Bert pointed out seems to do what I want. (Thanks again, Bert). Now I just have to understand it.
- Ken
On Monday 09 October 2006 02:57, Todd Blanchard wrote:
There is enough horsepower in the morphic layout controls to do most common layouts.
However, most people find the terminology bizarre and it is not at all straightforward to tap that power.
When you figure it out, it would be really nice if you would write up what you learn.
-Todd Blanchard
On Oct 8, 2006, at 11:08 AM, Kenneth Payne wrote:
Bert-
Thanks for your help.
This should actually work. I think you must not set the container to shrinkWrap.
I've been experimenting with layout by embedding morphs and using the morph menu to change layout etc.
I think I've tried every combination of layouts and child layouts but I've never got a sub-morph fill a cell or to change size with its container. I must be doing something wrong.
Right, you must give it a layout frame. Perhaps this helps:
I've looked at the example. I'll do some experimenting with it this week.
Thanks again for your help.
- Ken
On Sunday 08 October 2006 14:48, Bert Freudenberg wrote:
Am 08.10.2006 um 13:28 schrieb Kenneth Payne:
Am I right in thinking there is way to get a sub-morph to automatically resize as its owner morph resizes?
I've experimented with TableLayout and it seems to work the opposite way. You can get a morph to "shrink-wrap" around its components but you cannot get submorphs to expand or shrink automatically to fill a table cell.
You'd think that using "space fill" on the child layout menu might do something like this - but it doesn't.
This should actually work. I think you must not set the container to shrinkWrap.
As for Proportional Layout - I can't even understand what it's supposed to do. Nothing as far as I can tell.
Right, you must give it a layout frame. Perhaps this helps:
http://minnow.cc.gatech.edu/squeak/2141
- Bert -
Beginners mailing list Beginners@lists.squeakfoundation.org http://lists.squeakfoundation.org/mailman/listinfo/beginners
Beginners mailing list Beginners@lists.squeakfoundation.org http://lists.squeakfoundation.org/mailman/listinfo/beginners
Beginners mailing list Beginners@lists.squeakfoundation.org http://lists.squeakfoundation.org/mailman/listinfo/beginners
Am 09.10.2006 um 20:03 schrieb Kenneth Payne:
By the way, that proportional layout code that Bert pointed out seems to do what I want. (Thanks again, Bert). Now I just have to understand it.
Well, it's the traditional Smalltalk layout, also known as "fractional layout" in other environments. I guess it goes way back.
Here's a nice usage pattern:
http://www.cincomsmalltalk.com/userblogs/vbykov/blogView? entry=3266234939 http://tinyurl.com/me86d
- Bert -
beginners@lists.squeakfoundation.org
-
Bert Freudenberg -
keith hodges -
Keith Hodges -
Kenneth Payne -
Steve Linduska -
Todd Blanchard