Пример #1
0
QImage DviGenerator::image( Okular::PixmapRequest *request )
{

    dviPageInfo *pageInfo = new dviPageInfo();
    pageSize ps;
    QImage ret;

    pageInfo->width = request->width();
    pageInfo->height = request->height();

    pageInfo->pageNumber = request->pageNumber() + 1;

//  pageInfo->resolution = m_resolution;

    QMutexLocker lock( userMutex() );

    if ( m_dviRenderer )
    {
        SimplePageSize s = m_dviRenderer->sizeOfPage( pageInfo->pageNumber );

/*       if ( s.width() != pageInfo->width) */
        //   if (!useDocumentSpecifiedSize)
        //    s = userPreferredSize;

        if (s.isValid())
        {
            ps = s; /* it should be the user specified size, if any, instead */
        }

        pageInfo->resolution = (double)(pageInfo->width)/ps.width().getLength_in_inch();

#if 0
        kDebug(DviDebug) << *request
        << ", res:" << pageInfo->resolution << " - (" << pageInfo->width << ","
        << ps.width().getLength_in_inch() << ")," << ps.width().getLength_in_mm()
        << endl;
#endif

        m_dviRenderer->drawPage( pageInfo );

        if ( ! pageInfo->img.isNull() )
        {
            kDebug(DviDebug) << "Image OK";

            ret = pageInfo->img;

            if ( !m_linkGenerated[ request->pageNumber() ] )
            {
                request->page()->setObjectRects( generateDviLinks( pageInfo ) );
                m_linkGenerated[ request->pageNumber() ] = true;
            }
        }
    }

    lock.unlock();

    delete pageInfo;

    return ret;
}
Пример #2
0
void FaxRenderer::drawPage(double resolution, RenderedDocumentPage* page)
{
#ifdef KF_DEBUG
  kdDebug() << "FaxRenderer::drawPage(documentPage*) called, page number " << page->getPageNumber() << endl;
#endif

  // Paranoid safety checks
  if (page == 0) {
    kdError() << "FaxRenderer::drawPage(documentPage*) called with argument == 0" << endl;
    return;
  }
  if (page->getPageNumber() == 0) {
    kdError() << "FaxRenderer::drawPage(documentPage*) called for a documentPage with page number 0" << endl;
    return;
  }

  // Wait for all access to this documentRenderer to finish
  mutex.lock();

  // more paranoid safety checks
  if (page->getPageNumber() > numPages) {
    kdError() << "FaxRenderer::drawPage(documentPage*) called for a documentPage with page number " << page->getPageNumber()
	      << " but the current fax file has only " << numPages << " pages." << endl;
    mutex.unlock();
    return;
  }

  QImage img = fax.page(page->getPageNumber() - 1);

  SimplePageSize psize = pageSizes[page->getPageNumber() - 1];
  if (psize.isValid()) {
    QPainter *foreGroundPaint = page->getPainter();
    if (foreGroundPaint != 0) {
      // Compute an image for the page.

      // WARNING: It may be tempting to compute the image size in
      // pixel, using page->height() and page->width(). DON'T DO
      // THAT. KViewShell uses transformations e.g. to rotate the
      // page, and sets the argument 'resolution' accordingly. Similar
      // problems occur if KViewShell required a shrunken version of
      // the page, e.g. to print multiple pages on one sheet of paper.

      int width_in_pixel = qRound(resolution * psize.width().getLength_in_inch());
      int height_in_pixel = qRound(resolution * psize.height().getLength_in_inch());

      img = img.smoothScale(width_in_pixel, height_in_pixel);
      foreGroundPaint->drawImage(0, 0, img);
      page->returnPainter(foreGroundPaint);
    }
  } else
    kdError() << "FaxRenderer::drawPage() called, but page size for page " << page->getPageNumber() << " is invalid." << endl;
  
  // To indicate that the page was drawn, we set the appropriate flas in the page structure
  page->isEmpty = false;
  
  mutex.unlock();
}
Пример #3
0
void SizePreview::setSize(const SimplePageSize& size)
{
  _width = size.width().getLength_in_mm();
  _height = size.height().getLength_in_mm();

  if (_width < 50.0)
    _width = 50.0;
  if (_width > 1200.0)
    _width = 1200.0;

  if (_height < 50.0)
    _height = 50.0;
  if (_height > 1200.0)
    _height = 1200.0;

  update();
}
Пример #4
0
void DviGenerator::fillViewportFromAnchor( Okular::DocumentViewport &vp,
                                           const Anchor &anch, int pW, int pH ) const
{
    vp.pageNumber = anch.page - 1;


    SimplePageSize ps = m_dviRenderer->sizeOfPage( vp.pageNumber );
    double resolution = 0;
    if (ps.isValid()) resolution = (double)(pW)/ps.width().getLength_in_inch();
    else resolution = m_resolution;

    double py = (double)anch.distance_from_top.getLength_in_inch()*resolution + 0.5; 
 
    vp.rePos.normalizedX = 0.5;
    vp.rePos.normalizedY = py/(double)pH;
    vp.rePos.enabled = true;
    vp.rePos.pos = Okular::DocumentViewport::Center;
}