[Gambas-user] Signal 11 when making pdf using gb.cairo

[Tobias Boege]

On Tue, 17 Sep 2013, Willy Raets wrote:
> Hi all,
> 
> I have this strange problem in one of my projects.
> When placing an image on the PdfSurface I get strange things happening.
> In the project when the image is smaller than 280 x 390 it is on the
> pdf. When the image is just 5 pixels more in either width, height or
> both I get a signal 11.
> 
> I tried to reproduce the problem in a small project (see attachment).
> Only now, even if the image is smaller than 280 x 390 (tried with both a
> 210 x 210 and a 150 x 150 image) the signal 11 appears!
> I'm not getting this, as the code is the same (copy paste from original
> project and deleted some unneeded variables and changed some paths
> that's all)
> 
> I'm using two different methods of adding the image.
> 
> 1. Using:
> Cairo.Source = Cairo.ImagePattern(Image.Load("Icons/silhouts-150.png"),
> 20, 150)
> Cairo.Paint()
> 
> 2. Using:
> Cairo.Source = Cairo.ImagePattern(Image.Load("Icons/silhout.png"))
> Cairo.Rectangle(20, 22, 560, 790)
> Cairo.Fill()
> 
> The first one I used before in another project and works just fine there
> (images there are no bigger than 128 x 128, never had any trouble).
> 
> The second one is because I aim at putting a watermark on the page of
> the pdf, hence using a rectangle to fill with the image.
> I get the second one working in the original project if image is no
> bigger than 280 x 390, but I need it bigger.
> 
> Images in the Icons folder of attached projects are:
> silhouts-150.png -> 150 x 150
> silhouts-210.png -> 210 x 210
> silhout.png -> 560 x 790
> 
> Am I seriously overlooking something and gone a bit blind...?
> Or is something else happening?
> Hope someone has answers...
> 

Have you tried pressing Button4 and then Button1? This didn't result in a
Segfault here. Anyway, pressing Button1 first does...

Regards,
Tobi