[reportlab-users] split string by width.

[Tim Roberts]

Tim Roberts wrote:

> Juan Efren Castillo wrote:

>> I need to print a single long string.

>>

>> reportlab.lib.utils.SimpleSplit works splitting by blank spaces, but

>> this string has no spaces

>>

>> My solution was to divide string into "chunks"

>>

>> y  = 0

>> for t in chunks(r, MAXCHARS):

>>     p.drawString(d.x, page_size[1] - d.y + y, t)

>>     y -= p._leading

>>

>>

>> How ever I don't like this solution because MAXCHARS is always

>> different depending on Font and Size of the text.

>>

>> Any ideas how to calculate MAXCHARS ? or another solution to this?

> The only solution is to do it by hand, checking one character at a time

> until the string is too long:  I assume "p" is your canvas and "r" has

> the incoming string.  I might choose different variable names...

>

>     # Assume maxWidth has the maximum width.

>     tmpstr = ""

>     for c in r:

>         if p.stringWidth(s+c) > maxWidth:


That should be:

        if p.stringWidth(tmpstr+c) > maxWidth:

-- 
Tim Roberts, timr at probo.com
Providenza & Boekelheide, Inc.