src/statusbarspaceinfo.h

   1 /***************************************************************************
   2  *   Copyright (C) 2006 by Peter Penz (peter.penz@gmx.at) and              *
   3  *   and Patrice Tremblay                                                  *
   4  *                                                                         *
   5  *   This program is free software; you can redistribute it and/or modify  *
   6  *   it under the terms of the GNU General Public License as published by  *
   7  *   the Free Software Foundation; either version 2 of the License, or     *
   8  *   (at your option) any later version.                                   *
   9  *                                                                         *
  10  *   This program is distributed in the hope that it will be useful,       *
  11  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  12  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  13  *   GNU General Public License for more details.                          *
  14  *                                                                         *
  15  *   You should have received a copy of the GNU General Public License     *
  16  *   along with this program; if not, write to the                         *
  17  *   Free Software Foundation, Inc.,                                       *
  18  *   51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA          *
  19  ***************************************************************************/
  20 #ifndef STATUSBARSPACEINFO_H
  21 #define STATUSBARSPACEINFO_H
  22
  23 #include <kurl.h>
  24
  25 #include <QtGui/QColor>
  26 #include <QtGui/QKeyEvent>
  27 #include <QtGui/QWidget>
  28
  29 class KDiskFreeSp;
  30
  31 /**
  32  * @short Shows the available space for the volume represented
  33  *        by the given URL as part of the status bar.
  34  */
  35 class StatusBarSpaceInfo : public QWidget
  36 {
  37     Q_OBJECT
  38
  39 public:
  40     explicit StatusBarSpaceInfo(QWidget* parent);
  41     virtual ~StatusBarSpaceInfo();
  42
  43     void setUrl(const KUrl& url);
  44     const KUrl& url() const
  45     {
  46         return m_url;
  47     }
  48
  49 protected:
  50     /** @see QWidget::paintEvent() */
  51     virtual void paintEvent(QPaintEvent* event);
  52
  53 private slots:
  54     /**
  55      * The strange signature of this method is due to a compiler
  56      * bug (?). More details are given inside the class KDiskFreeSp (see
  57      * KDE Libs documentation).
  58      */
  59     void slotFoundMountPoint(const quint64& kBSize,
  60                              const quint64& kBUsed,
  61                              const quint64& kBAvailable,
  62                              const QString& mountPoint);
  63     void showResult();
  64
  65     /** Refreshs the space information for the current set URL. */
  66     void refresh();
  67
  68 private:
  69     /**
  70      * Returns a color for the progress bar by respecting
  71      * the given background color \a bgColor. It is assured
  72      * that enough contrast is given to have a visual indication.
  73      */
  74     QColor progressColor(const QColor& bgColor) const;
  75
  76 private:
  77     KUrl m_url;
  78     bool m_gettingSize;
  79     quint64 m_kBSize;
  80     quint64 m_kBAvailable;
  81 };
  82
  83 #endif