fxruby users - Jun 2005 - Scrollbars and Layout sizes

Well,
I''m trying to put together a quick gui for a log analysis script
I''m
using and while I''ve got the basics working it just doesn''t
look the way
I want it to :).
Being an absolute newbie in the subject of FOX and a relative stranger 
to GUI programming in general I need help badly.
Now, my current problem is getting a FXList to start with a reasonable 
size. The following code does not do what I expect it to do (multiple 
select is not activated).

#List for types
theTypeList=FXList.new(topFrame,nil,LIST_MULTIPLESELECT)
types.each{|t|
	theTypeList.appendItem(t)
}

Moreover I get only two visible items (there are more the 10) and a very 
narrow horizontal area (something like 5 characters wide). How do I 
control initial size for the widget? How to I make it resize together 
with the outer window?
topFrame is a FXHorizontalFrame with default initialisation.
I''d appreciate a few pointers to tutorials for Layouts and Layout hints
if there are any out there. I''ve looked in FXruby.org and FOX
Community,
but there doesn''t seem to be much about the nitty gritty of layouts.
Thanks for the help,
Cheers,
V.-

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Damphyr schrieb:
> Well,
> I''m trying to put together a quick gui for a log analysis script
I''m
> using and while I''ve got the basics working it just
doesn''t look the
> way I want it to :).
> Being an absolute newbie in the subject of FOX and a relative stranger 
> to GUI programming in general I need help badly.
> Now, my current problem is getting a FXList to start with a reasonable 
> size. The following code does not do what I expect it to do (multiple 
> select is not activated).
>
> #List for types
> theTypeList=FXList.new(topFrame,nil,LIST_MULTIPLESELECT)
> types.each{|t|
>     theTypeList.appendItem(t)
> }
>
> Moreover I get only two visible items (there are more the 10) 
Try:

    theTypeList.numVisible = types.size # or any integer value you''d 
like to use

If you''re creating theTypeList at runtime you will have to call

    theTypeList.recalc

afterwards.
> and a very narrow horizontal area (something like 5 characters wide). 
> How do I control initial size for the widget? How to I make it resize 
> together with the outer window?
Try adding LAYOUT_FILL_X and/or LAYOUT_FILL_Y as additional flags in the 
call of FXList.new (e.g. LIST_MULTIPLESELECT|LAYOUT_FILL_X).
> topFrame is a FXHorizontalFrame with default initialisation.
> I''d appreciate a few pointers to tutorials for Layouts and Layout 
> hints if there are any out there. I''ve looked in FXruby.org and
FOX
> Community, but there doesn''t seem to be much about the nitty
gritty of
> layouts.
The best page for information about layout managers is this one 
(included in the FOX docs):
http://fox-toolkit.org/layout.html

- Jannis

Jannis Pohlmann wrote:
> Damphyr schrieb:
>> #List for types
>> theTypeList=FXList.new(topFrame,nil,LIST_MULTIPLESELECT)
First things first: the above line is wrong.
theTypeList=FXList.new(topFrame,nil,0,LIST_MULTIPLESELECT) is the 
correct one (I was putting the options in place of the selection). That 
took care of the multiple selection problem.
Further reading of the RDocs reveals snippets of information on the use 
of LAYOUT_FILL_X etc.
These take care of the initial placement problem.
Now, how do I influence which widgets are shown and which not?
I guess I have to add a bit more code to the create method for the main 
window:

def create
	super
	show(PLACEMENT_SCREEN)
end # create
> The best page for information about layout managers is this one 
> (included in the FOX docs):
> http://fox-toolkit.org/layout.html
Thanks, I''ll keep reading :)
Cheers,
V.-

Hi again.
> Now, how do I influence which widgets are shown and which not?
> I guess I have to add a bit more code to the create method for the 
> main window:
>
> def create
>     super
>     show(PLACEMENT_SCREEN)
> end # create
You''re right, if you want the main window to be shown, you have to call
its #show method.

For every other widget (original FOX or derived from a FOX widget) you 
won''t have to do
anything special, they''re shown by default. If you create a widget 
during runtime (this means,
elsewhere than in #initialize of its parent) you will have to call 
#create if you want it to be
shown/created.

If you want to hide a widget, simply call #hide. If you don''t want to
do
that every time but
want a widget which is hidden by default, derive it from a FOX widget 
and add the call of
#hide to its create method (same like you did with 
show(PLACEMENT_SCREEN) in your
main window.

That''s all.

Hope this helps,
Jannis