[reportlab-users] Platypus + dividing lines ?

[reportlab at richardshea.fastmail.fm]

On Fri, 21 Mar 2008 15:13:17 -0700, "Tim Roberts" <timr at probo.com> said:

> 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 )

> 

That's really great, thank you very much indeed - I appreciate it. It
looks like just what I was after but without reading your code it would
have taken me a long time to figure out how to do it ! And thanks again
for your earlier answer.

Regards

Richard.

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