World: r3wp

hello maxim

hi

i have intention to use GLayout to improve an interface i have already, 
wrote in vid

i was wondering if there was a possibility to reuse what i have already 
wrote

and having features as elasticity

cool ,  you can recycle some/most of it.

the exact nature of your tool will make it easier or harder.

some styles are not part of glayout (for no real reason other than 
time and user demand)

i have a stylesheet where i created my personnal widgets in vid

can i reuse them ?

By default its easy to add  VID styles if you use the static-sizing 
extension by default.  This means you do not expect your face to 
resize, and is very easy to accomodate (obviously)

all the resizing algorythms are handled within the groups themselves 
based on indicators which are included within the gadgets and sub 
layouts they contain.

all you really have to supply (if one of the current sizing extensions 
does not do what you need) is implement two methods.

for the moment i just need to resize windows

most of the time i dont need to resize the styles on it

calc-sizes  is a function which lets your style decide what kind 
of space requirement it has, if it benefits from extra space (like 
a field or list) and this is independent in X and Y.

calc-size also lets you allocate default size and hard set minimal 
size of your face.

once all face have resolved the size they need/expect/allow  a second 
process is space attribution

which is handled in the gl-layout function.

basically, you receive a size as input and then refresh your face 
based on that size.  it will always be guaranteed to fit within the 
specs you gave within calc-size

this means that if no face in a layout can stretch or is elastic, 
the window will never allow resizing in that direction... trying 
to resize it beyon, will effetively resize the window back to its 
nominal size, allowing the other axis to resize freely.

there are also other powerfull functions which allow other tricks 
with groups, or to easily to extend the dialect of a style for example.

ok so i need to have all widgets resizable if i cant a window resizable 
in every direction ?

want

yes each direction being indepent... elasticity and stretching are 
pairs... you specify your face's needs independently.

ok it will be possible cause i have few styles heavilly modified 
: i just needed a text area wich can be erased when clicked and a 
field where all letter were typed in majuscules

I sometimes add an elastic (an actual glayout style) within a group, 
or add the elasticity to a face, just to allow the gui to resize 
even though it has no real advantage in resizing.

yes but in general its always usefull to resize at least  the windows 
that contain the faces

yess you'll see within a few minutes of testing how it reacts.

ok i see ... i m less affraid of trying to rewrite all that :)))) 
thanks

this layout for example: 

column [
	header "enter text"
	field
]

will popup a window which stretches only in x by default

ok i test it

if you allow field to stretch in Y , then, obviously it will look 
weird, since you'd end up with a multi-line text entry which actually 
only has one line entry...

just remeber that every thing has to be wrapped within columns and 
rows, which is the main difference in code.

yes but it remain simple and logical

column if i want to resize it in y

and row if i want to resize it in x ?

order

column if you want to stack your faces in Y , row to stack them X 
.

it has no effect on resizing.

yes placing them not resizing ... i m sorry

remember that you can (just like in VID) assign your face AND groups 
to variables in order to manipulated them afterwards  (replacing 
panes, for example)

if you ever change something interactively and wish to recompute 
the layout (cause the sizing needs have changed for any reason) then 
call refresh on any face or group.

ok it sounds cool

sometimes you'll need to call refresh on the window itself, cause 
the new/old faces will change how the whole tree of groups measure 
up against each other

Maxim answered on the Mailing List about GLayout vs RebGUI describing 
GLayout. I suppose I will have to take a look at his project too.

i ve tried it and its very efficient

Glayout webpage: page last updated: 2-Nov-2006

Maxim, how much further have you developed GLayout since the  site 
was updated?

a lot  ;-)

available?