wrong render of get_page()

[Pablo Rodríguez]

Hi there,

I think I hit a bug in pypoppler-0.6.2 by tinkering with the demo-poppler.py.

With the following code:

        self.document = poppler.document_new_from_file (uri, None)
        self.page_selector = self.document.get_page(0)

        ...

        cr.rectangle(add_x, add_y, self.page_width, self.page_height)
        cr.fill()
        self.page_selector.render(cr)

cairo draws the rectangle fine, whichever values add_x and add_y might have. But poppler renders the page as their values would be 0, 0 in all cases. And I guess this is wrong.

I attach the complete script (that works) and an screenshot showing the issue.

Thanks for your excellent work,

Pablo

[Pablo Rodríguez (ousia)]

The PDF file is rendered on 0,0 while the cairo surface is centered horizontally.

[Pablo Rodríguez (ousia)]

The previous attachment is not the one I had to include. Sorry for the inconveniences.

[Pablo Rodríguez (ousia)]

Just in case anyone will read this, the bug is much easily reproducable than I have described here.

Replace line 87 of demo-poppler.py included in pypoppler-0.6.2 with the following one:

        cr.rectangle(300, 300, self.width, self.height)

And I'm afraid that the bug is clear (although I'm not sure whether this belongs to the script itself or to (py)poppler).

Thanks,

Pablo

[Gian Mario Tagliaretti (gianmt)]

Hi Pablo, thanks for the report.

I'm finally around to have a look at this bug.
Please report any bug you may find.

[Gian Mario Tagliaretti (gianmt)]

Hi Pablo,

I finally could have a look at this, while I see what you mean, this is not a bug, it's just the white rectangle being moved 300 by 300 while the PDF renders at 0, 0.
Or I didn't get what you mean?

[Pablo Rodríguez (ousia)]

Hi Gian Mario,

I'm afraid that the bug is caused by pypoppler. gtk-cairo-test (from poppler) works fine when changing the cairo rectangle origin.

Something should be wrong in the render_to_pixbuf method (since it src_x and src_y seems always set to 0), but what this might be is beyond my knowledge.

I hope it helps,

Pablo

[Pablo Rodríguez (ousia)]

Hi Gian Mario,

and how can I get the PDF also rendered at 300, 300?

Thanks for your help,

Pablo

[Gian Mario Tagliaretti (gianmt)]

add cr.translate(300, 300) before the rectangle, e.g.

cr.translate(300, 300)
cr.rectangle(0, 0, self.width, self.height)

[Pablo Rodríguez (ousia)]

Thanks, that was exactly what I needed.

I'm closing the report as invalid.

Sorry for the inconveniences and many thanks for your help,

Pablo