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-rw-r--r--kdeprint/management/kmdbcreator.cpp187
1 files changed, 187 insertions, 0 deletions
diff --git a/kdeprint/management/kmdbcreator.cpp b/kdeprint/management/kmdbcreator.cpp
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+++ b/kdeprint/management/kmdbcreator.cpp
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+/*
+ * 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 "kmdbcreator.h"
+#include "kmfactory.h"
+#include "kmmanager.h"
+
+#include <qprogressdialog.h>
+#include <qfileinfo.h>
+#include <qdir.h>
+#include <klocale.h>
+#include <kapplication.h>
+#include <kstandarddirs.h>
+#include <kdebug.h>
+
+KMDBCreator::KMDBCreator(QObject *parent, const char *name)
+: QObject(parent,name)
+{
+ m_dlg = 0;
+ m_status = true;
+
+ connect(&m_proc,SIGNAL(receivedStdout(KProcess*,char*,int)),SLOT(slotReceivedStdout(KProcess*,char*,int)));
+ connect(&m_proc,SIGNAL(receivedStderr(KProcess*,char*,int)),SLOT(slotReceivedStderr(KProcess*,char*,int)));
+ connect(&m_proc,SIGNAL(processExited(KProcess*)),SLOT(slotProcessExited(KProcess*)));
+}
+
+KMDBCreator::~KMDBCreator()
+{
+ if (m_proc.isRunning())
+ m_proc.kill();
+ // do not delete the progress dialog anymore: it's persistent and owned by
+ // it's parent. It will be destroyed along with its parent.
+}
+
+bool KMDBCreator::checkDriverDB(const QString& dirname, const QDateTime& d)
+{
+ // don't block GUI
+ kapp->processEvents();
+
+ // first check current directory
+ QFileInfo dfi(dirname);
+ if (dfi.lastModified() > d)
+ return false;
+
+ // then check most recent file in current directory
+ QDir dir(dirname);
+ const QFileInfoList *list = dir.entryInfoList(QDir::Files,QDir::Time);
+ if (list && list->count() > 0 && list->getFirst()->lastModified() > d)
+ return false;
+
+ // then loop into subdirs
+ QStringList slist = dir.entryList(QDir::Dirs,QDir::Time);
+ for (QStringList::ConstIterator it=slist.begin(); it!=slist.end(); ++it)
+ if ((*it) != "." && (*it) != ".." && !checkDriverDB(dir.absFilePath(*it),d))
+ return false;
+
+ // everything is OK
+ return true;
+}
+
+bool KMDBCreator::createDriverDB(const QString& dirname, const QString& filename, QWidget *parent)
+{
+ bool started(true);
+
+ // initialize status
+ m_status = false;
+ m_firstflag = true;
+
+ // start the child process
+ m_proc.clearArguments();
+ QString exestr = KMFactory::self()->manager()->driverDbCreationProgram();
+ m_proc << exestr << dirname << filename;
+ kdDebug() << "executing : " << exestr << " " << dirname << " " << filename << endl;
+ QString msg;
+ if (exestr.isEmpty())
+ msg = i18n("No executable defined for the creation of the "
+ "driver database. This operation is not implemented.");
+ else if (KStandardDirs::findExe(exestr).isEmpty())
+ msg = i18n("The executable %1 could not be found in your "
+ "PATH. Check that this program exists and is "
+ "accessible in your PATH variable.").arg(exestr);
+ else if (!m_proc.start(KProcess::NotifyOnExit, KProcess::AllOutput))
+ msg = i18n("Unable to start the creation of the driver "
+ "database. The execution of %1 failed.").arg(exestr);
+ if (!msg.isEmpty())
+ {
+ KMManager::self()->setErrorMsg(msg);
+ started = false;
+ }
+
+ // Create the dialog if the process is running and if needed
+ if (started)
+ {
+ if (!m_dlg)
+ {
+ m_dlg = new QProgressDialog(parent->topLevelWidget(),"progress-dialog",true);
+ m_dlg->setLabelText(i18n("Please wait while KDE rebuilds a driver database."));
+ m_dlg->setCaption(i18n("Driver Database"));
+ connect(m_dlg,SIGNAL(canceled()),SLOT(slotCancelled()));
+ }
+ m_dlg->setMinimumDuration(0); // always show the dialog
+ m_dlg->setProgress(0); // to force showing
+ }
+ else
+ // be sure to emit this signal otherwise the DB widget won't never be notified
+ emit dbCreated();
+
+ return started;
+}
+
+void KMDBCreator::slotReceivedStdout(KProcess*, char *buf, int len)
+{
+ // save buffer
+ QString str( QCString(buf, len) );
+
+ // get the number, cut the string at the first '\n' otherwise
+ // the toInt() will return 0. If that occurs for the first number,
+ // then the number of steps will be also 0.
+ bool ok;
+ int p = str.find('\n');
+ int n = str.mid(0, p).toInt(&ok);
+
+ // process the number received
+ if (ok && m_dlg)
+ {
+ if (m_firstflag)
+ {
+ m_dlg->setTotalSteps(n);
+ m_firstflag = false;
+ }
+ else
+ {
+ m_dlg->setProgress(n);
+ }
+ }
+}
+
+void KMDBCreator::slotReceivedStderr(KProcess*, char*, int)
+{
+ // just discard it for the moment
+}
+
+void KMDBCreator::slotProcessExited(KProcess*)
+{
+ // delete the progress dialog
+ if (m_dlg)
+ {
+ m_dlg->reset();
+ }
+
+ // set exit status
+ m_status = (m_proc.normalExit() && m_proc.exitStatus() == 0);
+ if (!m_status)
+ {
+ KMFactory::self()->manager()->setErrorMsg(i18n("Error while creating driver database: abnormal child-process termination."));
+ // remove the incomplete driver DB file so that, it will be
+ // reconstructed on next check
+ QFile::remove(m_proc.args()[2]);
+ }
+ //else
+ emit dbCreated();
+}
+
+void KMDBCreator::slotCancelled()
+{
+ if (m_proc.isRunning())
+ m_proc.kill();
+ else
+ emit dbCreated();
+}
+#include "kmdbcreator.moc"