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;
}
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();
}
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;
}