Darren Roberts <robertsdjguard-poi <at> yahoo.com> writes:

> 
> 
> What you're doing appears to be technically correct, but has I think
exposed a limitation in that part of the
> library. The specification says that the normAutofit element in the XML
has an attribute called
> fontScale which if omitted then a scale of 100% is implied, which is
probably why you see your text spilling
> over the shape in Powerpoint as it is being rendered at normal size. When
you resize the shape by a fraction
> in Powerpoint it knows you want autofit, so recalculates and sets the
scale, which is why you then see it correctly.
> 
> The XSLFTextShape class merely sets the normAutofit element when you call 
> 
> shape1.setTextAutofit(TextAutofit.NORMAL);
> 
> but doesn't set the fontScale attribute (and certainly doesn't calculate
it for you). Unfortunately
> there doesn't appear to be a way for you to directly set the fontScale
attribute at the moment, you would
> need to delve into the underlying XML objects for the shape to do that.
> Equally calculating the size of the text could get interesting taking into
account all the spacing,
> justification etc, but once you have that and you know the size of the
anchor then it would be relatively
> straight-forward to calculate the scaling percentage you need to make the
text fit; then it's just a case
> of setting the fontScale attribute.
> 
> I may of course be wrong, but that's based on my knowledge of the
DrawingML spec relating to textboxes.
> 
> If you aren't in a position to implement and contribute a fix can I ask
you to please raise it as bug, as I have a
> feeling when I get to the Powerpoint output side of my project I'll need
this too, and if it hasn't already
> been picked up by someone then I'll have to look at doing it.
> 
> Regards
> Darren
> 
> >________________________________
> > From: "Chaudhari, Apoorva" <apoorva.chaudhari <at> capco.com>
> >To: user <at> poi.apache.org 
> >Sent: Monday, August 5, 2013 4:05 AM
> >Subject: Text Auto fit function in XSLF POI not working
> > 
> >
> >Hello everyone,
> >
> >I have issues with the implementation of the text auto fit function
> >available in POI. I have a code snipplet here, where I want that the
> >overflow text ( greater than the size of the anchor ) gets resized to a
> >smaller font and fit within the TextBox bounds. However, it doesnt do that.
> >BUT if you manually try to resize it, meaning if you try to increase or
> >decrease the size of the textbox by even a very small amount, the text gets
> >reduced to the size of the font that it should be, to fit within that text
> >box.











Hi Darren,

Thank you for your insight, I will raise this as a bug as you suggested.
Thanks.





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