[reportlab-users] Platypus + dividing lines ?

[Tim Roberts]

reportlab at richardshea.fastmail.fm wrote:

> Thanks for that. Can I ask another, related question ?

>

> I also want thin lines to appear between two paragraphs at some points

> in the document (so the line would be the width of a column). 

>

> I'm using 'addFromList' based upon a list of paragraphs to build the

> story and so I'm not sure how I can do this (I suppose I could make the

> line an image but that seems a bit clunky). I can't, as far as I can

> see, use absolute coordinates because I don't know where the paragraph

> break is going to be rendered.

>

> I'm sure there is a way - could anyone tell ?

>   


What I did was write myself a flowable that I could add to the story 
just like another paragraph, whose sole function was to draw a 
horizontal line out to the column boundaries.  I haven't used this in 
about 5 years, but maybe you can adapt it:

class HorizontalRule(Flowable):
    def __init__(self, width=3, strokecolor=black):
        self.width = width
        self.strokecolor = strokecolor
    def wrap(self, availWidth, availHeight):
        self.availWidth = availWidth
        return (availWidth, self.width + 2)
    def draw(self):
        canvas = self.canv
        canvas.setLineWidth(self.width)
        canvas.setStrokeColor(self.strokecolor)
        p = canvas.beginPath()
        p.moveTo(0, 1)
        p.lineTo(self.availWidth, 1)
        p.close()
        canvas.drawPath( p )

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