workspace/ksysguard/gui/SensorDisplayLib/BarGraph.h

   1 /*
   2     KSysGuard, the KDE System Guard
   3
   4     Copyright (c) 1999 - 2001 Chris Schlaeger <cs@kde.org>
   5
   6     This program is free software; you can redistribute it and/or
   7     modify it under the terms of the GNU General Public
   8     License version 2 or at your option version 3 as published by
   9     the Free Software Foundation.
  10
  11     This program is distributed in the hope that it will be useful,
  12     but WITHOUT ANY WARRANTY; without even the implied warranty of
  13     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14     GNU General Public License for more details.
  15
  16     You should have received a copy of the GNU General Public License
  17     along with this program; if not, write to the Free Software
  18     Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
  19
  20 */
  21
  22 #ifndef KSG_BARGRAPH_H
  23 #define KSG_BARGRAPH_H
  24
  25 #include <QWidget>
  26 #include <QPaintEvent>
  27
  28 class BarGraph : public QWidget
  29 {
  30   Q_OBJECT
  31
  32   friend class DancingBars;
  33
  34   public:
  35     explicit BarGraph( QWidget *parent );
  36     ~BarGraph();
  37
  38     bool addBar( const QString &footer );
  39     bool removeBar( uint idx );
  40
  41     void updateSamples( const QVector<double> &newSamples );
  42
  43     double getMin() const
  44     {
  45       return minValue;
  46     }
  47
  48     double getMax() const
  49     {
  50       return maxValue;
  51     }
  52
  53     void getLimits( double &l, bool &la, double &u, bool &ua ) const
  54     {
  55       l = lowerLimit;
  56       la = lowerLimitActive;
  57       u = upperLimit;
  58       ua = upperLimitActive;
  59     }
  60
  61     void setLimits( double l, bool la, double u, bool ua )
  62     {
  63       lowerLimit = l;
  64       lowerLimitActive = la;
  65       upperLimit = u;
  66       upperLimitActive = ua;
  67     }
  68
  69     void changeRange( double min, double max );
  70
  71   protected:
  72     virtual void paintEvent( QPaintEvent* );
  73
  74   private:
  75     double minValue;
  76     double maxValue;
  77     double lowerLimit;
  78     double lowerLimitActive;
  79     double upperLimit;
  80     bool upperLimitActive;
  81     bool autoRange;
  82     QVector<double> samples;
  83     QStringList footers;
  84     uint bars;
  85     QColor normalColor;
  86     QColor alarmColor;
  87     QColor mBackgroundColor;
  88     int fontSize;
  89 };
  90
  91 #endif