void QMediaPlayerPrivate::loadPlaylist()
{
Q_Q(QMediaPlayer);
Q_ASSERT(pendingPlaylist.isNull());
// Do not load a playlist if there are more than MAX_NESTED_PLAYLISTS in the chain already,
// or if the playlist URL is already in the chain, i.e. do not allow recursive playlists and loops.
if (nestedPlaylists < MAX_NESTED_PLAYLISTS && !q->currentMedia().canonicalUrl().isEmpty() && !isInChain(q->currentMedia().canonicalUrl())) {
pendingPlaylist = QMediaContent(new QMediaPlaylist, q->currentMedia().canonicalUrl(), true);
QObject::connect(pendingPlaylist.playlist(), SIGNAL(loaded()), q, SLOT(_q_handlePlaylistLoaded()));
QObject::connect(pendingPlaylist.playlist(), SIGNAL(loadFailed()), q, SLOT(_q_handlePlaylistLoadFailed()));
pendingPlaylist.playlist()->load(pendingPlaylist.canonicalRequest());
} else if (playlist) {
playlist->next();
}
}
void ossimQtIgenController::runIgen()
{
// Pointer sanity checks.
if (!theWidget || !theWriter || !theDialog)
{
return;
}
// Make sure the output file name has been set.
if (theOutputFile == ossimFilename::NIL)
{
QString caption("Notice:");
QString text = "You must specify an output file!";
// Give the user an already open
QMessageBox::warning( theDialog,
caption,
text,
QMessageBox::Ok,
QMessageBox::NoButton);
return;
}
// Check to see if file exist and prompt user for overrite.
if (theOutputFile.exists())
{
QString caption("Question:");
QString text = "Overwrite existing file: ";
text += theOutputFile.c_str();
int answer = QMessageBox::question( theDialog,
caption,
text,
QMessageBox::Yes,
QMessageBox::No );
if (answer == QMessageBox::No)
{
theDialog->theOutputFileLineEdit->setText("");
return;
}
}
#if 0 /* Temporarily commented out. (drb) */
//---
// Check to see if user wants batch mode in a separate process or to run
// in this process with a progress dialog?
//---
QString caption("Question:");
QString text = "Run in batch mode?\n";
text += "yes = Separtate process with no feed back.\n";
text += "no = In this process with a percent complete dialog.";
int answer = QMessageBox::question( theDialog,
caption,
text,
QMessageBox::Yes,
QMessageBox::No);
if (answer == QMessageBox::Yes)
{
runBatchIgen();
return;
}
#endif
//---
// Check the chain to make sure the output file is not one of the input
// files.
//---
if ( isInChain(theOutputFile) )
{
QString caption("Notice:");
QString text = "Your output file cannot be one of the input files!\n";
text += "Please select a new output file.";
// Give the user a warning.
QMessageBox::warning( theDialog,
caption,
text,
QMessageBox::Ok,
QMessageBox::NoButton);
theDialog->theOutputFileLineEdit->setText("");
return;
}
// Make a spec file
//---
ossimFilename spec_file = theOutputFile;
spec_file.setExtension("spec");
if (theOutputFile == spec_file)
{
QString caption("Notice:");
QString text = "Your output file ends with \".spec\"\n";
text += "Please select a new output file.";
// Give the user a warning.
QMessageBox::warning( theDialog,
caption,
text,
QMessageBox::Ok,
QMessageBox::NoButton);
theDialog->theOutputFileLineEdit->setText("");
return;
}
QString s = spec_file.c_str();
saveSpecFile(s);
const ossimConnectableObject* widgetInput = theWidget->getInput();
if (!widgetInput)
{
return;
}
// Duplicate the widget's input
ossimRefPtr<ossimConnectableObject> writerInput = duplicate(widgetInput);
if (writerInput.valid() == false)
{
return;
}
// Set up the view(s) in the container and sync them by firing event.
setContainerView(writerInput.get());
ossimPropertyEvent propEvt(writerInput.get());
writerInput->fireEvent(propEvt);
writerInput->propagateEventToOutputs(propEvt);
// Set the area of interest using a cutter.
// ossimGeoPolyCutter* cutter = new ossimGeoPolyCutter;
// cutter->setPolygon(theOutputGeoPolygon);
// cutter->setView(theOutputView, false);
// // Put the cutter into the chain at the end.
// ossimImageChain* chain = PTR_CAST(ossimImageChain, writerInput.get());
// if (chain)
// {
// chain->addFirst(cutter);
// }
// else
// {
// return;
// }
// Connect writer to the cutter.
theWriter->connectMyInputTo(0, writerInput.get());
// Set the output file.
theWriter->setOutputName(theOutputFile);
// Initialize.
theWriter->initialize();
// Set the area of interest.
ossimIrect aoi;
if (getAreaOfInterest(aoi) == false)
{
return;
}
theWriter->setAreaOfInterest(aoi);
// Make a progress dialog.
ossimQtProgressDialog* pd = new ossimQtProgressDialog("");
pd->setMinimumDuration(250); // Update 4 times a second.
//---
// Connect the progress dialog's signal "canceled()" up to our slot
// "saveCanceled()" so that we can tell the writer to abort.
//---
connect( pd, SIGNAL(canceled()), this, SLOT(abortClicked()) );
ossimProcessListener* pl = PTR_CAST(ossimProcessListener, pd);
if (pl)
{
// Make the progress dialog a listener to the writer.
theWriter->addListener(pl);
}
// Set up the progress dialog...
QString qs = "Processing file ";
qs += theOutputFile.c_str();
pd->setLabelText(qs);
pd->show();
// Process the tile...
bool exceptionCaught = false;
try
{
theWriter->execute();
}
catch(std::exception& e)
{
pd->close();
QString caption = "Exception caught!\n";
QString text = e.what();
QMessageBox::information( theDialog,
caption,
text,
QMessageBox::Ok );
exceptionCaught = true;
}
catch (...)
{
pd->close();
QString caption = "Unknown exception caught!\n";
QString text = "";
QMessageBox::information( theDialog,
caption,
text,
QMessageBox::Ok );
exceptionCaught = true;
}
// Close and disconnect for next run.
theWriter->close();
theWriter->disconnectAllInputs();
// cutter = 0;
writerInput = 0;
if (exceptionCaught)
{
removeFile();
}
else if (pd->wasCanceled())
{
pd->close();
removeFile();
}
if (pl)
{
theWriter->removeListener(pl);
}
// Cleanup...
delete pd;
pd = 0;
if(theOutputFile.exists())
{
ossimQtAddImageFileEvent event(theOutputFile);
ossimQtApplicationUtility::sendEventToRoot(theDialog,
&event);
}
}
