void MainWindow::renderingFinished()
{
QImage img;
auto map = futureWatcher.result();
if (map != nullptr) {
if (auto heightmap = dynamic_cast<const HeightMap*>(map)) {
img = heightmapToImage(heightmap->data);
} else if (auto colormap = dynamic_cast<const ColorMap*>(map)) {
img = colormapToImage(colormap->data);
} else {
Q_ASSERT(0);
}
}
QString msg;
if (img.size().isNull()) {
msg = tr("No output image");
} else {
int w = qMin(ui->image->maximumWidth(), img.width());
int h = qMin(ui->image->maximumHeight(), img.height());
ui->image->setPixmap(QPixmap::fromImage(img).scaled(w, h, Qt::KeepAspectRatio));
int timeElapsed = updateStartTime.elapsed();
msg = QString(tr("Rendering finished in %1 ms")).arg(timeElapsed);
}
statusBar()->showMessage(msg);
}
int
main(int argc, char * argv[] ) {
struct cmdlineInfo cmdline;
FILE * ifP;
int format;
struct pam colormapPam;
struct pam outpam;
tuple ** colormapRaster;
tupletable2 colormap;
pnm_init(&argc, argv);
parseCommandLine(argc, argv, &cmdline);
ifP = pm_openr(cmdline.inputFilespec);
computeColorMapFromInput(ifP,
cmdline.allcolors, cmdline.newcolors,
cmdline.methodForLargest,
cmdline.methodForRep,
&format, &colormapPam, &colormap);
pm_close(ifP);
colormapToImage(format, &colormapPam, colormap,
cmdline.sort, cmdline.square, &outpam, &colormapRaster);
if (cmdline.verbose)
pm_message("Generating %u x %u image", outpam.width, outpam.height);
outpam.file = stdout;
pnm_writepam(&outpam, colormapRaster);
pnm_freetupletable2(&colormapPam, colormap);
pnm_freepamarray(colormapRaster, &outpam);
pm_close(stdout);
return 0;
}
