Programming and Scripting :: Icon Grid Aligning

Well, I still have uses for the xpm viewer besides desktop icons, such as images for application interfaces (skins, for example).
ImageMagick is a vital tool for anyone who does graphics work.

Quote

have .dfminfo be plain text and no gzipped.

I never noticed that. Good move =o)
I wonder if that allows manual (persistent) edits of the file while dfm is running?

Thanks roberts, the extra code seems to do the trick.
dfm is constantly updating .dfminfo. Fortunately the script is fast
enough to change it, although I'm not sure what other side efffects
may happen.
Unless dfm allows running calls to itself, I'm not sure how I can
interface with it using c code. Meanwhile here is the update for
those who want to play around with it.

******** Warning -- This works for 4.1RC1 !!! ******************
******** any less version will corrupt your .dfminfo !!! ****

Code Sample

#!/bin/lua

x_align = 56
y_align = 64

x_mid = math.floor(x_align/2);
y_mid = math.floor(y_align/2);

fin = assert(io.open("/home/dsl/.dfminfo", "r"))
fout = assert(io.open("/home/dsl/modified.dfminfo", "w"))

count = 1

while true do
line = fin:read()
if line == nil then break end

pattern = "_POS"
i= string.find (line, pattern)
if i then -- if possible candidate
s = string.sub(line, i+6)

from,till,x,y = string.find (s, "%s*(%d+)%s*(%d+)")
if (x and y) then -- if candidate

mod = math.mod (x, x_align)
x = x - mod
if mod > x_mid then
x = x + x_align;
end
mod = math.mod (y, y_align)
y = y - mod
if mod > y_mid then
y = y + y_align;
end

s=string.sub (line, 1, i+5) -- the start of the line
fout:write (s,x," ",y, "\n") -- the modification
else
fout:write (line, "\n") -- unaltered candidate
end

count = count + 1
else
fout:write (line, "\n") -- unaltered non-candidate
end
end

fin:close ()
fout:close ()

os.execute ("mv -f /home/dsl/modified.dfminfo /home/dsl/.dfminfo")
os.execute ("pkill dfm && dfm") -- restart dfm

I haven't tried this, since I'm still using 4.0. I just tried the present "arrange" feature, which appears to snap icons in line without re-arranging. What's different? Thanks

the "arrange" feature arranges and snaps (so named 'arrange'). To see this, drag an
icon to the middle of the screen, do 'arrange' and it gets moved back near the rest of
the icons. for some of us, we like to divide out icons in different areas of the screen
but also want the 'snap' to an imaginary grid.

I wonder why you are creating and writing to modified.dfminfo? Apparently this file overwrites .dfminfo immediately anyway, so is there a reason not to write directly to .dfminfo?

You could also (optionally) use io.popen("file .dfminfo") to check whether it is gzipped before writing to it. This could allow you to write to a tempfile, then gzip it if needed before overwititng the original.

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