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Diffstat (limited to 'kdeprint/kprinter/printwrapper.cpp')
| -rw-r--r-- | kdeprint/kprinter/printwrapper.cpp | 403 |
1 files changed, 403 insertions, 0 deletions
diff --git a/kdeprint/kprinter/printwrapper.cpp b/kdeprint/kprinter/printwrapper.cpp new file mode 100644 index 000000000..a9f566c72 --- /dev/null +++ b/kdeprint/kprinter/printwrapper.cpp @@ -0,0 +1,403 @@ +/* + * This file is part of the KDE libraries + * Copyright (c) 2001 Michael Goffioul <kdeprint@swing.be> + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Library General Public + * License version 2 as published by the Free Software Foundation. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Library General Public License for more details. + * + * You should have received a copy of the GNU Library General Public License + * along with this library; see the file COPYING.LIB. If not, write to + * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, + * Boston, MA 02110-1301, USA. + **/ + +#include "printwrapper.h" + +#include <unistd.h> +#include <signal.h> +#include <sys/time.h> + +#include <qstring.h> +#include <qstringlist.h> +#include <stdlib.h> +#include <kmessagebox.h> +#include <qfile.h> +#include <qtimer.h> +#include <qregexp.h> +#include <qsocketnotifier.h> + +#include <kapplication.h> +#include <kcmdlineargs.h> +#include <klocale.h> +#include <kstandarddirs.h> +#include <kio/netaccess.h> +#include <kurl.h> +#include <kdebug.h> +#include <ktempfile.h> + +#include <kprinter.h> +#include <kdeprint/kmmanager.h> +#include <kdeprint/kmprinter.h> +#include <kdeprint/kprintdialog.h> + +void signal_handler(int); +QString tempFile; +bool fromStdin = false; +char job_output = 0; // 0: dialog, 1: console, 2: none +char readchar = '\0'; +bool dataread = false; +bool docopy = false; + +void showmsgdialog(const QString& msg, int type = 0) +{ + switch (type) + { + case 0: KMessageBox::information(NULL,msg,i18n("Print Information")); break; + case 1: KMessageBox::sorry(NULL,msg,i18n("Print Warning")); break; + case 2: KMessageBox::error(NULL,msg,i18n("Print Error")); break; + } +} + +void showmsgconsole(const QString& msg, int type = 0) +{ + QString errmsg = QString::fromLatin1("%1 : ").arg((type == 0 ? i18n("Print info") : (type == 1 ? i18n("Print warning") : i18n("Print error")))); + kdDebug() << errmsg << msg << endl; +} + +void showmsg(const QString& msg, int type = 0) +{ + switch (job_output) { + case 0: showmsgdialog(msg,type); break; + case 1: showmsgconsole(msg,type); break; + default: break; + } +} + +void errormsg(const QString& msg) +{ + showmsg(msg,2); + exit(1); +} + +void signal_handler(int s) +{ + QFile::remove(tempFile); + exit(s); +} + +QString copyfile( const QString& filename ) +{ + kdDebug( 500 ) << "Copying file " << filename << endl; + QString result; + QFile f( filename ); + if ( f.open( IO_ReadOnly ) ) + { + KTempFile temp; + temp.setAutoDelete( false ); + QFile *tf = temp.file(); + if ( tf ) + { + char buffer[ 0xFFFF ]; + int b = 0; + while ( ( b = f.readBlock( buffer, 0xFFFF ) ) > 0 ) + { + if ( tf->writeBlock( buffer, b ) != b ) + break; + } + tf->close(); + if ( b > 0 ) + temp.setAutoDelete( true ); + else + { + kdDebug( 500 ) << "File copied to " << temp.name() << endl; + result = temp.name(); + } + } + else + temp.setAutoDelete( true ); + f.close(); + } + return result; +} + +//****************************************************************************************************** + +PrintWrapper::PrintWrapper() +: QWidget(), force_stdin(false), check_stdin(true) +{ +} + +void PrintWrapper::slotPrint() +{ + KCmdLineArgs *args = KCmdLineArgs::parsedArgs(); + +#if defined(HAVE_SIGACTION) && !defined(HAVE_SIGSET) + struct sigaction action; +#endif /* HAVE_SIGACTION && !HAVE_SIGSET*/ + + // read variables from command line + QString printer = args->getOption("d"); + QString title = args->getOption("t"); + int ncopies = QString(args->getOption("n")).toInt(); + QString job_mode = args->getOption("j"); + QString system = args->getOption("system"); + QCStringList optlist = args->getOptionList("o"); + QMap<QString,QString> opts; + KURL::List files; + QStringList filestoprint; + force_stdin = args->isSet("stdin"); + docopy = args->isSet( "c" ); + bool nodialog = !(args->isSet("dialog")); + + if( isatty( 0 )) + { + kdDebug( 500 ) << "stdin is a terminal, disabling it" << endl; + check_stdin = false; + } + + // parse options + for (QCStringList::ConstIterator it=optlist.begin(); it!=optlist.end(); ++it) + { + QStringList l = QStringList::split('=',QString(*it),false); + if (l.count() >= 1) opts[l[0]] = (l.count() == 2 ? l[1] : QString::null); + } + + // read file list + for (int i=0; i<args->count(); i++) + files.append(args->url(i)); + + // some clean-up + args->clear(); + + // set default values if necessary + if (job_mode == "console") job_output = 1; + else if (job_mode == "none") job_output = 2; + else job_output = 0; + + // some checking + if ( files.count() > 0) + { + check_stdin = false; + + if( force_stdin ) + { + showmsg(i18n("A file has been specified on the command line. Printing from STDIN will be disabled."), 1); + force_stdin = false; + } + } + if (nodialog && files.count() == 0 &&!force_stdin && !check_stdin ) + { + errormsg(i18n("When using '--nodialog', you must at least specify one file to print or use the '--stdin' flag.")); + } + + if( check_stdin ) + { // check if there's any input on stdin + fd_set in; + struct timeval tm; + tm.tv_sec = 0; + tm.tv_usec = 0; + FD_ZERO( &in ); + FD_SET( 0, &in ); + if( select( 1, &in, NULL, NULL, &tm ) ) + { // we have data on stdin + if ( read( 0, &readchar, 1 ) > 0 ) + { + force_stdin = true; + check_stdin = false; + dataread = true; + kdDebug( 500 ) << "input detected on stdin" << endl; + } + else + { + force_stdin = check_stdin = false; + kdDebug( 500 ) << "stdin closed and empty" << endl; + } + } + else + kdDebug( 500 ) << "no input on stdin at startup" << endl; + } + + // force_stdin ? or also check_stdin ? + KPrinter::ApplicationType dialog_mode = (force_stdin || nodialog ? KPrinter::StandAlone : KPrinter::StandAlonePersistent); + KPrinter::setApplicationType(dialog_mode); + if (!force_stdin) + KPrinter::addStandardPage(KPrinter::FilesPage); + + KPrinter kprinter; + if (nodialog) + { + KMPrinter *prt(0); + KMManager *mgr = KMManager::self(); + + mgr->printerList(false); + if (!printer.isEmpty()) + prt = mgr->findPrinter(printer); + else + prt = mgr->defaultPrinter(); + + if (prt == 0) + errormsg(i18n("The specified printer or the default printer could not be found.")); + else if (!prt->autoConfigure(&kprinter)) + errormsg(i18n("Operation aborted.")); + } + else if (!printer.isEmpty()) + kprinter.setSearchName(printer); + kprinter.setDocName(title); + kprinter.initOptions(opts); + kprinter.setOption("kde-filelist", files.toStringList().join("@@")); + kdDebug( 500 ) << kprinter.option( "kde-filelist" ) << endl; + if (ncopies > 0) + kprinter.setNumCopies(ncopies); + + if (nodialog) + slotPrintRequested(&kprinter); + else + { + dlg = KPrintDialog::printerDialog(&kprinter, 0); + if (dlg) + { + connect(dlg, SIGNAL(printRequested(KPrinter*)), SLOT(slotPrintRequested(KPrinter*))); + if( check_stdin ) + { + notif = new QSocketNotifier( 0, QSocketNotifier::Read, this ); + connect( notif, SIGNAL( activated( int )), this, SLOT( slotGotStdin())); + kdDebug( 500 ) << "waiting for input on stdin" << endl; + } + dlg->exec(); + delete dlg; + } + else + errormsg(i18n("Unable to construct the print dialog.")); + } + + QTimer::singleShot(10,kapp,SLOT(quit())); +} + +void hack( KPrintDialog* dlg ); + +void PrintWrapper::slotGotStdin() +{ + delete notif; + if ( read( 0, &readchar, 1 ) > 0 ) + { + force_stdin = true; + check_stdin = false; + dataread = true; + dlg->enableDialogPage( 0, false ); + kdDebug( 500 ) << "got delayed input on stdin" << endl; + } +} + +void PrintWrapper::slotPrintRequested(KPrinter *kprinter) +{ + // re-initialize docName + kprinter->setDocName(QString::null); + + // download files if needed + QStringList files = QStringList::split("@@", kprinter->option("kde-filelist"), false), filestoprint; + for (QStringList::ConstIterator it=files.begin(); it!=files.end(); ++it) + { + QString tmpFile; + KURL url = KURL::fromPathOrURL(*it); + kdDebug( 500 ) << url.url() << endl; + if (KIO::NetAccess::download(url, tmpFile, this)) + { + filestoprint << tmpFile; + kprinter->setDocName(url.fileName()); + } + } + + if (filestoprint.count() > 1) + kprinter->setDocName(i18n("Multiple files (%1)").arg(filestoprint.count())); + else if (kprinter->docName().isEmpty()) + kprinter->setDocName(force_stdin ? "<STDIN>" : "KPrinter"); + if (filestoprint.count() == 0) + { + // At this point force_stdin should be true + if (!force_stdin) + errormsg(i18n("Nothing to print.")); + + // print from stdin + +# if defined(HAVE_SIGSET) + sigset(SIGHUP, signal_handler); + sigset(SIGINT, signal_handler); + sigset(SIGTERM, signal_handler); +# elif defined(HAVE_SIGACTION) + memset(&action, 0, sizeof(action)); + action.sa_handler = signal_handler; + + sigaction(SIGHUP, &action, NULL); + sigaction(SIGINT, &action, NULL); + sigaction(SIGTERM, &action, NULL); +# else + signal(SIGHUP, signal_handler); + signal(SIGINT, signal_handler); + signal(SIGTERM, signal_handler); +# endif + + tempFile = locateLocal("tmp","kprinter_")+QString::number(getpid()); + filestoprint.append(tempFile); + fromStdin = true; + FILE *fout = fopen(QFile::encodeName(filestoprint[0]),"w"); + if (!fout) errormsg(i18n("Unable to open temporary file.")); + char buffer[8192]; + int s; + + // check for previously read data + if ( dataread ) + fwrite( &readchar, 1, 1, fout ); + // read stdin and write to temporary file + while ((s=fread(buffer,1,sizeof(buffer),stdin)) > 0) + fwrite(buffer,1,s,fout); + + s = ftell(fout); + fclose(fout); + if (s <= 0) + { + showmsg(i18n("Stdin is empty, no job sent."), 2); + QFile::remove(filestoprint[0]); + return; + } + } + else if ( docopy ) + { + for ( QStringList::Iterator it=filestoprint.begin(); it!=filestoprint.end(); ++it ) + { + QString tmp = copyfile( *it ); + if ( tmp.isEmpty() ) + { + errormsg( i18n( "Unable to copy file %1." ).arg( *it ) ); + return; + } + *it = tmp; + } + fromStdin = true; + } + else + fromStdin = false; + + // print all files. Remove it after if printing from + // stdin. "kprinter" shouldn't remove temp file itself, + // otherwise the temp file might get removed before the + // print process finishes. + bool ok = kprinter->printFiles(filestoprint, fromStdin); + + if (!ok) + showmsg(i18n("Error while printing files"), 2); + // Do not show this dialog anymore. Code sould be removed definitively + // if nobody complains. + /*else + { + QString msg = i18n("<nobr>File(s) sent to printer <b>%1</b>.</nobr>").arg(kprinter->printerName()); + showmsg(msg,0); + }*/ +} + +#include "printwrapper.moc" |