[poppler] Poppler::renderToImage() error

[alessandro mason]

I've made some experiments and the program creates the document. If I keep
the image size of  the tmp Qimage with the PageSize() method returns 0. then
I think that the problem is when the program chooses the page from the
document->page() method or when creates the QImage from the
page->renderToImage method.


2011/5/26 Albert Astals Cid <aacid at kde.org>

> A Thursday, May 26, 2011, alessandro mason va escriure:
> > Hi,
> > I made a patch for PureData tha includes this code:
> >
> > poppler::poppler()
> > {
> >     //ctor
> > }
> > poppler::poppler(const char* file)
> > {//ctor
> >     loaded=loadedpage=save=true;
> >     document= Poppler::Document::load(file);//open the document file
> >     if (!document || document->isLocked()) {
> >             loaded=false;
> >                 delete document;
> >                 }
> >
> > }//end cosntructor
> >
> >   void poppler::selPage(int page){
> >         poppler::pdfPage=document->page(1);  // Document starts at page 0
> >             if (pdfPage == 0) {
> >                 loadedpage=false;
> >                 }
> >             // Generate a QImage of the rendered page
> >     loaded=true;
> >    tmp = poppler::pdfPage->renderToImage(72,72,-1,-1,-1,-1);//
> >     if (tmp.isNull()) {
> >       loaded=false;
> >     }
> >
> >     filename=QString("page.bmp");
> >     save=tmp.save(filename,"BMP",50);//savepage
> >
> > }
> >
> > poppler::~poppler()
> > {
> >     //dtor
> >     delete poppler::pdfPage;
> >     delete poppler::document;
> > }
> >
> > With Debian this code works, but now with Ubuntu 11.4 doesn't work
> because
> > it doesn't save the image.
> > Can anyone help me?
>
> Can you give more data? You have some variables there to check for errors,
> is
> any of them failing?
>
> Albert
>
> > Sorry for my english
> >
> > Mason Alessandro
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