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Re: CASE a UNAME?? [message #27474]

Thu, 25 October 2001 07:26

Logan Lindquist
Messages: 50
Registered: October 2001

Member

David,
Thanks Again for the Help!
Logan

"David Fanning" <david@dfanning.com> wrote in message
news:MPG.164142b35a4bfde3989723@news.frii.com...
> Logan Lindquist (llindqusit@mrdoc.cc) writes:
>
>> I would like my program to do a CASE statement in an
>> event handler procedure that is the same for two different
>> options in the menu of my program. Say I want to change
>> the window size by selecting a different option in my
>> menu. By doing a CASE statement on the UNAME of the
>> different options I can figure out which option created
>> the event? So I guess the Question of the hour is:
>> What is the best way to find which Widget_Button
>> created an event in a general event handler procedure
>> called by several such Widget_Button's?
>
> I typically look at the button's value.
>
> Widget_Control, event.id, Get_Value=buttonValue
> CASE buttonValue OF
>
> Just be sure you spell this in your case statement
> *exactly* the way you spelled it on the button!
>
> Cheers,
>
> David
>
> --
> David W. Fanning, Ph.D.
> Fanning Software Consulting
> Phone: 970-221-0438, E-mail: david@dfanning.com
> Coyote's Guide to IDL Programming: http://www.dfanning.com/
> Toll-Free IDL Book Orders: 1-888-461-0155

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Re: CASE a UNAME?? [message #27475 is a reply to message #27474]

Thu, 25 October 2001 07:28

Logan Lindquist
Messages: 50
Registered: October 2001

Member

Reimar,

Thanks for the Code and the Help!

Logan

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Re: CASE a UNAME?? [message #27478 is a reply to message #27474]

Thu, 25 October 2001 05:01

R.Bauer
Messages: 1424
Registered: November 1998

Senior Member

Dear Logan,

this is a widget with uname from our idl lecture.

regards
Reimar

pro wid5_event,event

widget_control,event.top,get_uvalue=x

CASE Event.id OF
WIDGET_INFO(event.top,find_by_uname='QUIT') :$
WIDGET_CONTROL,event.top,/destroy
WIDGET_INFO(event.top,find_by_uname='PRINT') : $
BEGIN
id=WIDGET_INFO(event.top,find_by_uname='TEXT')
WIDGET_CONTROL,id,set_value=(*x).value
(*x).value='neuer Text'
END
ELSE:
ENDCASE

end

pro wid5
x={value:'Hallo Du'}
x=ptr_new(x,/no_copy)

id_base=widget_base(row=3)

id_PRINT=widget_button(id_base,value='PRINT',$
uname='PRINT')
id_quit=widget_button(id_base,value='QUIT',$
uname='QUIT')

id_text=widget_text(id_base,value='',uname='TEXT')

widget_control,id_base,/realize,set_uvalue=x
xmanager,'wid5',id_base
ptr_free,x

end

--
Reimar Bauer

Institut fuer Stratosphaerische Chemie (ICG-1)
Forschungszentrum Juelich
email: R.Bauer@fz-juelich.de
http://www.fz-juelich.de/icg/icg1/
============================================================ ======
a IDL library at ForschungsZentrum Juelich
http://www.fz-juelich.de/icg/icg1/idl_icglib/idl_lib_intro.h tml

http://www.fz-juelich.de/zb/text/publikation/juel3786.html
============================================================ ======

read something about linux / windows
http://www.suse.de/de/news/hotnews/MS.html

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Re: CASE a UNAME?? [message #27482 is a reply to message #27478]

Wed, 24 October 2001 21:29

Logan Lindquist
Messages: 50
Registered: October 2001

Member

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Re: CASE a UNAME?? [message #27483 is a reply to message #27482]

Wed, 24 October 2001 21:19

Logan Lindquist
Messages: 50
Registered: October 2001

Member

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><HEAD>
<META http-equiv=Content-Type content="text/html; charset=iso-8859-1">
<META content="MSHTML 6.00.2600.0" name=GENERATOR>
<STYLE></STYLE>
</HEAD>
<BODY bgColor=#ffffff>
<DIV><FONT face=Arial size=2>Umm, nevermind. I found it. </FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Here is from the IDL Help.. </FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2><STRONG>IDL GUIBuilder
Examples</STRONG></FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>...........</FONT></DIV>
<DIV><FONT face=Arial size=2>Note that the callback routine finds the label
widget using the FIND_BY_UNAME keyword with the name value you gave the widget
in the Properties dialog.</FONT></DIV>
<DIV><FONT face=Arial size=2>...........</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>; Toggle the mapping of the two IDL sub-bases
and</FONT></DIV>
<DIV> </DIV>
<DIV><FONT face=Arial size=2>; get the Widget IDs of the two
sub-bases.<BR> wBase1 = Widget_Info(Event.top,
find_by_uname="base1")<BR> wBase2 = Widget_Info(Event.top,
find_by_uname="base2")<BR>  <BR> ; Now update the
mapping.<BR> widget_control, wBase1, map=(Event.index eq
0)<BR> widget_control, wBase2, map=(Event.index eq 1)</FONT></DIV>
<DIV><FONT face=Arial size=2>...........</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Here is an example from Pavel Bure [just kidding I
don't think he's really the hockey player from the Florida Panthers... this last
name is much easier for me to remember .. and spell than Pavel's real last
name]. Pavel added it to the procedure that the Widget_Draw object calls, so
that's what I'm going to do.</FONT></DIV>
<DIV><FONT face=Arial size=2>......</FONT></DIV>
<DIV><FONT face=Arial size=2>widget_control, widget_info(event.top,
find_by_uname='THE_DRAW'), get_value=win_id</FONT></DIV>
<DIV><FONT face=Arial size=2>......</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Gosh I love it when I answer my own questions. Well
not out loud..</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Thanks Pavel,</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Logan</FONT></DIV>
<BLOCKQUOTE dir=ltr
style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px">
<DIV>"Logan Lindquist" <<A
href="mailto:llindqusit@mrdoc.cc">llindqusit@mrdoc.cc</A>> wrote in message
<A
href="news:9r81fm$jio$1@sulawesi-fi.lerc.nasa.gov">news:9r81fm$jio$1@sulawesi-fi.lerc.nasa.gov</A>...</DIV></BLOCKQUOTE></BODY></HTML>

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Re: CASE a UNAME?? [message #27484 is a reply to message #27483]

Wed, 24 October 2001 21:27

David Fanning
Messages: 11724
Registered: August 2001

Senior Member

Logan Lindquist (llindqusit@mrdoc.cc) writes:

> I would like my program to do a CASE statement in an
> event handler procedure that is the same for two different
> options in the menu of my program. Say I want to change
> the window size by selecting a different option in my
> menu. By doing a CASE statement on the UNAME of the
> different options I can figure out which option created
> the event? So I guess the Question of the hour is:
> What is the best way to find which Widget_Button
> created an event in a general event handler procedure
> called by several such Widget_Button's?

I typically look at the button's value.

Widget_Control, event.id, Get_Value=buttonValue
CASE buttonValue OF

Just be sure you spell this in your case statement
*exactly* the way you spelled it on the button!

Cheers,

David

--
David W. Fanning, Ph.D.
Fanning Software Consulting
Phone: 970-221-0438, E-mail: david@dfanning.com
Coyote's Guide to IDL Programming: http://www.dfanning.com/
Toll-Free IDL Book Orders: 1-888-461-0155

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