World: r3wp

It's from Henrik's code ...  but I can't see how something could 
modify the code !   Anyway I've trapped it ... so it's not a problem 
now.

mine? which code exactly?

it's something you wrote that allows you to pan an image

ok, the image-pan style?

yep

pan-image style

if you look at that error, there is an extra char in there. it's 
possible that you can find it in the source code and delete it.

It's not there .. that's the worry!

so something is corrupting memory

the char may be invisible. double-checked?

yes

Otherwise I'd get the error as soon as I ran the code right?

but it happens after I move the image around a bit

I'm not sure. The problem is that there is a char which you on a 
mac can accidentally type when holding down alt while pressing space. 
the you get a hard-space char (I think it is). rebol doesn't handle 
it properly always, but it doesn't prevent code from loading.

The stray char looks fairly familiar. You're probably have problems 
with cp1252- and utf8-encodings?

Ok, let me delete the space and reinsert ...

plain vanilla code ..

Oh .. it's working!

maybe there was something odd invisible??

A hard-space then, just as Henrik said.

wonder why it only errors later on ...

A hard-space, this can be encoded by UTF-8 as 0xC2 0xA0, 0xC2 is 
#"Â".

Good to know

It loads, but is probably mistaken for a word with no value? What 
was the exact error message? Word has no value or so?

i've had similar errors with PC control codes embeded in a script.

Need a little assitance with a choice button in layout. How might 
it be possible to assign a list of tables from db query to a choice 
button. The query is no problem.  But at the moment i see no way 
to use the result block in the layout definition of the choice button

I'm not sure, but try this:

my-data: ["a" "b" "c"]

view layout [choice data my-data]

Entirely untested

Yes, it works. Do you know how this same block can be used to switch 
to according panels?? The current code is like this: 	choice 150x30 
silver edge [size: 1x1 color: orange] data tables [
    		switch value [
    			    "Panel 1" [panels/pane: panel1  show panels]
    				"Panel 2" [panels/pane: panel2  show panels]
    				"Panel 3" [panels/pane: panel3  show panels]	
						]
    		]

I think that will work, yes, but I would probably do something like:

panel-list: ["Panel 1" panel1 "Panel 2" panel2 "Panel 3" panel3]


choice 150x30 silver data (extract panel-list 2) [panels/pane: select 
panel-list value show panels]

missing a 'get in front of the 'select there.

It seems to pick the right panels from the block, but when the choice 
is made the panel is not refreshed. Perhaps something with the show 
panels??

did you add the 'get? otherwise the pane is just set to a word.

Yes!

like : choice 150x30 silver data (extract panel-list 2) [panels/pane: 
'get select panel-list value show panels]

hoho... you added a lit-word! :-) you need to remove the '. I used 
'get to signify that it was a REBOL function. I should have used 
GET instead. Sorry.

Great, thats it. And, i think it is not your fault, maybe more my 
lack of understanding how lit-words are used in rebol.  Thanks a 
lot!

Henrik, i need to bother you again. Sorry for that. I use your List-View 
in one of my panes. I am handling the resize event  globally via 
insert-event-func. There i tried to handle the resize of the listview 
also, but  it does not do anything. Everything is resized,  but not 
the List-View.. The next thing i tried was a resize via a button 
directly in the same pane. This works as long the windows hasn't 
been resized before. Do you have any any idea where this might result 
from? In th global function the event is returned after resizing 
all panels.

sorry, I've been away. I'll respond soon.

I don't remember how it works for list-view, but don't you have to 
specify the new size, when using the resize function?

For listview it is like lv/resize 400x300. I used this syntax in 
the global event function as well as for the resize button.  It only 
worked when with the button when i didn/t resize the window before.

This works as long the windows hasn't been resized before.

 <- this sounds a little odd. Could it be that the inserted event-func 
 is not called properly?

It is odd. But i just don't know how to test, if it is called properly. 
For all other panels and panes it seems to work ok. I just had some 
difficulties with backdrop, which doesn't seem to resize to the full 
width.

can you post your event-func?

the thing is that it should work identically from the event func 
and when used from a button

This is my function: insert-event-func [
            if equal? event/type 'resize [
				  header/size: as-pair main/size/1 60
				  header1/size: as-pair main/size/1 60
				  separator/size: as-pair main/size/1 4

				  navigator/size: as-pair 200 (main/size/2 - 120)
				  navigator1/size: as-pair 200 (main/size/2 - 120)
				  
				  panels/size: as-pair main/size/1 (main/size/2 - 120)
				  panel1/size: as-pair main/size/1 (main/size/2 - 120)
				  
				  li/resize: 400x300
				  				  
				  panel2/size: as-pair main/size/1 (main/size/2 - 120)
				  panel3/size: as-pair main/size/1 (main/size/2 - 120)
				  
				  footer/size: as-pair main/size/1 60
				  footer/offset: as-pair 0 (main/size/2 - 60)
				  footer1/size: as-pair main/size/1 60
				  
      			  show main

            ]
            event
]

li/resize: 400x300

should be:

li/resize 400x300

that's why it only works once. :-)

Yes, now it works in all ways.  So obvious! OK, thanks a lot.

If you don't want to handle resizing manually, you could look at 
the VID Extension Kit.

There might be a better group than View, but I am looking for industry 
literature about UI delays.  I remember something about an IBM paper 
that said 1/10 of a second is the maximum keyboard or UI delay that 
is imperceptible.  I wonder if there is a good whitepaper/publication 
on this that someone can recommend that would be solid enough to 
wack a supplier over the head with who has very slow UI latencies. 
 They are in denial about latency affecting the user experience.