Hi!
In Ruby Tk, how to make something happen periodically, while the user
does not touch the button, menu, etc.?
Thanks!
Go to <http://rubykitchensink.ca/> and search on "tktimer".
Regards, Morton
···
On Feb 10, 2007, at 2:30 AM, S P Arif Sahari Wibowo wrote:
In Ruby Tk, how to make something happen periodically, while the user
does not touch the button, menu, etc.?
Let me recant on that. It's better to go to Google and search "ruby +tktimer". This finds a lot more stuff. I also recommend the following link
http://www.ruby-lang.org/cgi-bin/cvsweb.cgi/ruby/ext/tk/sample/
There you will find links to tktimer.rb, tktimer2.rb, and tktimer3.rb -- these are examples of the use of the TkTimer class. It's also possible that you might find
http://raa.ruby-lang.org/project/rubytk_en/
and
http://blade.nagaokaut.ac.jp/cgi-bin/scat.rb/ruby/ruby-talk/212939
useful.
Regards, Morton
···
On Feb 10, 2007, at 2:51 AM, Morton Goldberg wrote:
On Feb 10, 2007, at 2:30 AM, S P Arif Sahari Wibowo wrote:
In Ruby Tk, how to make something happen periodically, while the user
does not touch the button, menu, etc.?Go to <http://rubykitchensink.ca/> and search on "tktimer".
Works like a charm, once I know the keyword, things went smoothly.
Thanks!
That said, do you know about proc in the arguments for TkTimer's start
method / parameter, where its result goes?
Thanks!
···
On Feb 10, 3:22 am, Morton Goldberg <m_goldb...@ameritech.net> wrote:
> Go to <http://rubykitchensink.ca/> and search on "tktimer".
Let me recant on that. It's better to go to Google and search "ruby
+tktimer". This finds a lot more stuff. I also recommend the
following link
http://www.ruby-lang.org/cgi-bin/cvsweb.cgi/ruby/ext/tk/sample/
No, I'm sorry, but I don't know where the result of a block passed to TkTimer#start goes. In my own work, I have always written these blocks for their effects, not their results. IMO you shouldn't rely on the results such blocks. Remember: "effect" can include modifications to the state of objects visible within your own code.
Regards, Morton
···
On Feb 17, 2007, at 6:20 PM, S P Arif Sahari Wibowo wrote:
On Feb 10, 3:22 am, Morton Goldberg <m_goldb...@ameritech.net> wrote:
Go to <http://rubykitchensink.ca/> and search on "tktimer".
Let me recant on that. It's better to go to Google and search "ruby
+tktimer". This finds a lot more stuff. I also recommend the
following link
http://www.ruby-lang.org/cgi-bin/cvsweb.cgi/ruby/ext/tk/sample/Works like a charm, once I know the keyword, things went smoothly.
Thanks!That said, do you know about proc in the arguments for TkTimer's start
method / parameter, where its result goes?
Message-ID: <1171754322.899346.272470@k78g2000cwa.googlegroups.com>
That said, do you know about proc in the arguments for TkTimer's start
method / parameter, where its result goes?
Please try this.
···
From: "S P Arif Sahari Wibowo" <arifsaha@gmail.com>
Subject: Re: Ruby Tk: how to make something happen periodically?
Date: Sun, 18 Feb 2007 08:20:11 +0900
--------------------------------------------------------------
TkTimer.new(100, 2, proc{|tm|
p [:body, tm.class, tm.current_args, tm.return_value]
tm.return_value + 1
}).start(500, proc{|tm|
p [:init, tm.class, tm.current_args, tm.return_value]
4
},
1,2,3)
--------------------------------------------------------------
It will returns
--------------------------------------------------------------
(wait 500ms)
[:init, TkTimer, [1, 2, 3], nil]
(wait 100ms)
[:body, TkTimer, , 4]
(wait 100ms)
[:body, TkTimer, , 5]
--------------------------------------------------------------
A TkTimer object keeps the result (last value) of the previous proc.
You can get the result by TkTimer#return_value method.
BTW, TkTimer class is not accurate. Because, the interval shows
the wait between finish of previous proc and start of next proc.
So, the timer delays by the time cost of the proc.
TkRTTimer class is a little more accurate than TkTimer class.
It modifies the interval based on the difference between the requested
time and current time. It doesn't mean to keep same intervals.
But it will make the delay by repeating minimum.
Please try "ext/tk/sample/tkrttimer.rb".
It will show you a part of properties of TkRTTimer class.
--
Hidetoshi NAGAI (nagai@ai.kyutech.ac.jp)