[reportlab-users] vertical text in table cell with height None

[Arkadi Colson]

Hi

I'm using this function to rotate the text vertically:

class RotatedParagraph(Flowable):
        def __init__(self, text):
                Flowable.__init__(self)
                self.text       = text

        def draw(self):
                canvas = self.canv
                canvas.rotate(90)
                fs = canvas._fontsize
                canvas.translate(0, -(self.width/2) -(self.aW/2))
                self.text.canv = canvas
                try:
                        self.text.draw()
                finally:
                        del self.text.canv

        def wrap(self, aW, aH):
                self.aW, self.aH = aW, aH
                w, h = self.text.wrap(aH,aW)
                self.width,self.height = h, w
                return h, w*1.1

Since we upgraded from reportlab 2.5 to 3.3 this is the result:

It looks like that the available height value has been changed. It's now a very high number. Any idea what's the problem here and how I can put vertically rotated text in a variable height cell?

Thanks!

BR
Arkadi

[Robin Becker]

I think you might not be specifying a height for the row in question. By default
the width of a paragraph is the same as aW (in this case aH). We improved
paragraph wrapping in later reportlab so this is just exposing a bug in how
layouts used to fail ie the old case didn't wrap properly and then wrote outside
the actual height of the cell. Since paragraphs don't ask for extra width the
dynamic row height mechanism isn't going to help.

On 18/04/2017 12:58, Arkadi Colson wrote:
> Hi
>
> I'm using this function to rotate the text vertically:
>
> class RotatedParagraph(Flowable):
> def __init__(self, text):
> Flowable.__init__(self)
> self.text = text
>
> def draw(self):
> canvas = self.canv
> canvas.rotate(90)
> fs = canvas._fontsize
> canvas.translate(0, -(self.width/2) -(self.aW/2))
> self.text.canv = canvas
> try:
> self.text.draw()
> finally:
> del self.text.canv
>
> def wrap(self, aW, aH):
> self.aW, self.aH = aW, aH
> w, h = self.text.wrap(aH,aW)
> self.width,self.height = h, w
> return h, w*1.1
>
> Since we upgraded from reportlab 2.5 to 3.3 this is the result:
>
>

> It looks like that the available height value has been changed. It's now a very
> high number. Any idea what's the problem here and how I can put vertically
> rotated text in a variable height cell?
>
> Thanks!
>
> BR
> Arkadi
>
>
>

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> reportlab-users mailing list
> reportl...@lists2.reportlab.com
> https://pairlist2.pair.net/mailman/listinfo/reportlab-users
>
--
Robin Becker


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