TkDialog question

[Stephen Kellett]

Hi Folks.

I have a TkDialog that I just want to display and then get the answer
from it. I was wondering if it was possible to do this without deriving
from the class. Its a simple dialog box with a Yes/No question.

ret = TkDialog.new('title'=>'Confirm Exit',
'message'=>'Are you sure you want to exit?',
'buttons'=>['Yes', 'No'],
'default'=>1,
'bitmap'=>'question')

How do I get the answer? Did the user press Yes or No?

I've tried to find the answer to this by searching all the ruby examples
on my machine and using Google. I'm either looking for the wrong thing,
looking in the wrong place, whatever I can't work out how to do this.

Hoping someone can help me.

Stephen

 

[gregarican]

I have a TkDialog that I just want to display and then get the answer
from it. I was wondering if it was possible to do this without deriving
from the class. Its a simple dialog box with a Yes/No question.

Try the TkMessageBox. See
http://members.at.infoseek.co.jp/shiroikumo/ruby/rubytk/index-en.html
for details.

 

[Stephen Kellett]

ret = TkDialog.new('title'=>'Confirm Exit',
'message'=>'Are you sure you want to exit?',
'buttons'=>['Yes', 'No'],
'default'=>1,
'bitmap'=>'question')

How do I get the answer? Did the user press Yes or No?

Solved the problem.

ret.value() will return the index of the button pressed. In the example
above that is:
Yes == 0
No == 1

So the code would be:

If ret.value() == 0 # user pressed Yes
TkRoot.destroy();
end

You can also use ret.name() to get the name of the button pressed.

Stephen

 

[email55555]

FYI.
There maybe a bug for dialog.name.
If a dialog does not show up yet, the value will be nil, but calling
name will give you exception.

Example:
dialog = TkDialog2.newtitle=>'Hello', :message=>'Exit?',
:buttons=>['Yes', 'No'], :default=>1)
# TkDialog2 will not showing at initialize time

puts dialog.value # print nil
puts dialog.name # exception...

My suggestion is modify dialog.rb on the line # 202
def name
@buttons[@val]
end

by

def name
@val.nil? ? nil : @buttons[@val]
end

 

[Hidetoshi NAGAI]

From: (e-mail address removed)
Subject: Re: TkDialog question
Date: Thu, 15 Sep 2005 00:21:34 +0900

There maybe a bug for dialog.name.
If a dialog does not show up yet, the value will be nil, but calling
name will give you exception.

Thank you for your report. I'll fix it on CVS.