Copy the KDE 3.5 branch to branches/trinity for new KDE 3.5 features.

BUG:215923


git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/kdelibs@1054174 283d02a7-25f6-0310-bc7c-ecb5cbfe19da

1 files changed, 187 insertions, 0 deletions

diff --git a/kdeprint/management/kmdbcreator.cpp b/kdeprint/management/kmdbcreator.cpp
new file mode 100644
index 000000000..021619db9
--- /dev/null
+++ b/kdeprint/management/kmdbcreator.cpp
@@ -0,0 +1,187 @@
+/*
+ *  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"