World: r3wp

Any idea on why this error occurs?

make object! [
    code: 312
    type: 'script
    id: 'cannot-use
    arg1: 'path
    arg2: 'none!
    arg3: none
    near: [if pf/data <> face/data [
            old: pf/data
            if old [
                clear skip pf/pane/:old/effect/draw 7
                show pf/pane/:old
            ]
            pf/data: face/data

            insert tail face/effect/draw [pen leaf fill-pen leaf circle 6x10 
            3]
            show face
            face/action face
        ]]
    where: 'switch
]

I'm setting a radio-group using the following code

field/pane/2/feel/engage field/pane/:value 'down none


The radio group appears in a pane, and if I display that pane first, 
then there is no problem.  But if I try it before I display the pane 
containing the radio-group, I get this error.

Because data is none?

>> layout [r: radio]
>> probe r/data
none

this is rebgui ..

I suspect that a value is being initialised only on showing it, when 
it should be initialised with the display function.

Off to Italy, back in 5 weeks.

Anyone working on a toggle widget ?

Can i ask anybody: is anyone working on a witget GRID (or similar 
- for example: text-list with more(multi) columns)?

How is that different from a table widget ?

table's functionality is simply insufficient for real database related 
work ... e.g. ability to have data block, and to configure which 
columns to display and which not to ...

So table widget doesn't have a cursor to mark selected row..

.. and function "picked" like text-list..

face/picked/1 is the first selected row

but widget text-list in rebGUI doesn't have multi-columns..

widget table has multi-columns but i can not select any row..  is 
it true?

(sorry i am beginner in english..)

(multi-columns =  i need more then 1 column )

the options word "multi" allows you to select more than one row at 
a time.

maybe he meant simply to have hilighted row, plus ability to navigate 
by keyboard?

yes

i need any widget that can do:  1) hilighted selected row 2) row 
with more than 1 column

widget table : 1) i can have more 1 column - so it is good for me 
   -- but 2) i can not click on row and hilight  it

was it discussed here before? Why recent Rebgui version takes 15MB? 
Playing a bit with demo and it is now 19,5MB after few minutes of 
usage ...

Sorry - i have downloaded v.3.7 now  and i found in widget table 
all what i need ....thank you for your patience :-)

Wait and watch the memory usage ... it tends to drop with GC.

but 15 - 19MB? Wasn't it some 5MB with older versions? What changed 
that memory consumption rised so significantly?

Graham - you going to DevCon?

I think you'll find that the spelll checking dictionary contributes 
to the memory rise.

I'm only attending virtually :)

I made some improvements in the list-view widget for rebgui  ^^ Now 
dynamc widget changes impact on data to be drawn (so when you change 
the state of a checkbox this impacts on the stored data) I make a 
generic callback funtion to allow ppl to save list data into a file 
 on changes. I make some estetical changes too 
I hope you will apreciate it  ^^

this new widget can be found in the web page  
http://www.rebolfrance.info/articles/regui-cooking-widgs

0.52 version of list-view widget is shapped to ork with Rebgui 0.36

it's been a while since i don't get internet connection so I hope 
it works fine with rebgui  0.37

list-view 0.52 works fine with rebgui 0.37

shadwolf, do you know how to remove a tab dynamically from a tabbed-panel, 
and also how to add tabs dynamically?

hum ... tab ?

you mean column or ro ?

row  adding row is mutch more easyer than handleling column ... To 
skip column we have several way to do this ...  one or just estetical 
and doesn't impact upon internal datas and other are about impacting 
uppon internal datas structure then provoc a redraw

List view is  thinked like a rendering engine you give to it a stutured 
list of datas then you get it on screen

so you modify the datas structure (internal datas) then make a show 
listview-var1  to make the changes applyed on screen

I give a very simple sample of this in the list-view052.r script

adding is easyer than removing ...

and it's because of rebol enerant problems...

but thing like remove list-view-var1/buffer  list -view-var1/picked 
 show list-view-var1  can be handeled easyly  ...

tab-panel ...

lol ...

hum i work on tabpannel 10 month ago so i don't know ... but it must 
be the same kind of working

but there you need to desalocate the tabs contente  other while lot 
of memory leaks

for example an IRC client like Xchat will use tab pannel for every 
window (dialogue private , chat rooms, servers notices )

in this case you need obviously to add and remove tabs ^^