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Sourcecode: partitionmanager version File versions  Download package

operation.cpp

/***************************************************************************
 *   Copyright (C) 2008 by Volker Lanz <vl@fidra.de>                       *
 *                                                                         *
 *   This program is free software; you can redistribute it and/or modify  *
 *   it under the terms of the GNU General Public License as published by  *
 *   the Free Software Foundation; either version 2 of the License, or     *
 *   (at your option) any later version.                                   *
 *                                                                         *
 *   This program 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 General Public License for more details.                          *
 *                                                                         *
 *   You should have received a copy of the GNU General Public License     *
 *   along with this program; if not, write to the                         *
 *   Free Software Foundation, Inc.,                                       *
 *   51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA            *
 ***************************************************************************/

#include "ops/operation.h"

#include "core/partition.h"
#include "core/device.h"

#include "jobs/job.h"

#include "util/report.h"

#include <QIcon>
#include <QString>

#include <kdebug.h>
#include <kiconloader.h>
#include <klocale.h>

Operation::Operation() :
      m_Status(StatusNone),
      m_ProgressBase(0)
{
}

Operation::~Operation()
{
      qDeleteAll(jobs());
      jobs().clear();
}

void Operation::insertPreviewPartition(Device& device, Partition& p)
{
      Q_ASSERT(device.partitionTable());

      device.partitionTable()->removeUnallocated();

      p.parent()->insert(&p);

      device.partitionTable()->updateUnallocated(device);
}

void Operation::removePreviewPartition(Device& device, Partition& p)
{
      Q_ASSERT(device.partitionTable());

      if (p.parent()->remove(&p))
            device.partitionTable()->updateUnallocated(device);
      else
            kWarning() << "failed to remove partition " << p.deviceNode() << " at " << &p << " from preview.";
}

/** @return text describing the Operation's current status */
00070 QString Operation::statusText() const
{
      static const QString s[] =
      {
            i18nc("@info:progress operation", "None"),
            i18nc("@info:progress operation", "Pending"),
            i18nc("@info:progress operation", "Running"),
            i18nc("@info:progress operation", "Success"),
            i18nc("@info:progress operation", "Warning"),
            i18nc("@info:progress operation", "Error")
      };

      Q_ASSERT(status() >= 0 && static_cast<quint32>(status()) < sizeof(s) / sizeof(s[0]));

      if (status() < 0 || static_cast<quint32>(status()) >= sizeof(s) / sizeof(s[0]))
      {
            kWarning() << "invalid status " << status();
            return QString();
      }

      return s[status()];
}

/** @return icon for the current Operation's status */
00094 QIcon Operation::statusIcon() const
{
      static const char* icons[] =
      {
            "",
            "dialog-information",
            "dialog-information",
            "dialog-ok",
            "dialog-warning",
            "dialog-error"
      };

      Q_ASSERT(status() >= 0 && static_cast<quint32>(status()) < sizeof(icons) / sizeof(icons[0]));

      if (status() < 0 || static_cast<quint32>(status()) >= sizeof(icons) / sizeof(icons[0]))
      {
            kWarning() << "invalid status " << status();
            return QIcon();
      }

      if (status() == StatusNone)
            return QIcon();

      return SmallIcon(icons[status()]);
}

void Operation::addJob(Job* job)
{
      if (job)
      {
            jobs().append(job);
            connect(job, SIGNAL(started()), SLOT(onJobStarted()));
            connect(job, SIGNAL(progress(int)), SIGNAL(progressChanged(int)));
            connect(job, SIGNAL(finished()), SLOT(onJobFinished()));
      }
}

void Operation::onJobStarted()
{
      Job* job = qobject_cast<Job*>(sender());

      if (job)
            emit jobStarted(job, this);
}

void Operation::onJobFinished()
{
      Job* job = qobject_cast<Job*>(sender());

      if (job)
      {
            setProgressBase(progressBase() + job->numSteps());
            emit jobFinished(job, this);
      }
}

/** @return total number of steps to run this Operation */
00151 qint32 Operation::totalProgress() const
{
      qint32 result = 0;

      foreach (const Job* job, jobs())
            result += job->numSteps();

      return result;
}

/** Execute the operation
      @param parent the parent Report to create a new child for
      @return true on success
*/
00165 bool Operation::execute(Report& parent)
{
      bool rval = false;

      Report* report = parent.newChild(description());

      foreach (Job* job, jobs())
            if (!(rval = job->run(*report)))
                  break;

      setStatus(rval ? StatusFinishedSuccess : StatusError);

      report->setStatus(i18nc("@info/plain status (success, error, warning...) of operation", "%1: %2", description(), statusText()));

      return rval;
}

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