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 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();
}