ground/gcs/src/plugins/lineardial/lineardialgadgetwidget.h

   1 /**
   2  ******************************************************************************
   3  *
   4  * @file       lineardialgadgetwidget.h
   5  * @author     Edouard Lafargue Copyright (C) 2010.
   6  * @addtogroup GCSPlugins GCS Plugins
   7  * @{
   8  * @addtogroup LinearDialPlugin Linear Dial Plugin
   9  * @{
  10  * @brief Impliments a gadget that displays linear gauges
  11  *****************************************************************************/
  12 /*
  13  * This program is free software; you can redistribute it and/or modify
  14  * it under the terms of the GNU General Public License as published by
  15  * the Free Software Foundation; either version 3 of the License, or
  16  * (at your option) any later version.
  17  *
  18  * This program is distributed in the hope that it will be useful, but
  19  * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
  20  * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
  21  * for more details.
  22  *
  23  * You should have received a copy of the GNU General Public License along
  24  * with this program; if not, write to the Free Software Foundation, Inc.,
  25  * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
  26  */
  27
  28 #ifndef LINEARDIALGADGETWIDGET_H_
  29 #define LINEARDIALGADGETWIDGET_H_
  30
  31 #include "lineardialgadgetconfiguration.h"
  32 #include "extensionsystem/pluginmanager.h"
  33 #include "uavobjectmanager.h"
  34 #include "uavobject.h"
  35 #include <QGraphicsView>
  36 #include <QtSvg/QSvgRenderer>
  37 #include <QtSvg/QGraphicsSvgItem>
  38
  39 #include <QFile>
  40 #include <QTimer>
  41
  42 class LineardialGadgetWidget : public QGraphicsView {
  43     Q_OBJECT
  44
  45 public:
  46     LineardialGadgetWidget(QWidget *parent = 0);
  47     ~LineardialGadgetWidget();
  48     void enableOpenGL(bool flag);
  49     void setDialFile(QString dfn);
  50     void paint();
  51     void setRange(double min, double max)
  52     {
  53         minValue = min; maxValue = max;
  54     }
  55     void setGreenRange(double min, double max)
  56     {
  57         greenMin = min; greenMax = max;
  58     }
  59     void setYellowRange(double min, double max)
  60     {
  61         yellowMin = min; yellowMax = max;
  62     }
  63     void setRedRange(double min, double max)
  64     {
  65         redMin = min; redMax = max;
  66     }
  67     void connectInput(QString obj, QString field);
  68     void setIndex(double val);
  69     void setDialFont(QString fontProps);
  70     void setFactor(double val)
  71     {
  72         factor = val;
  73     }
  74     void setDecimalPlaces(int val)
  75     {
  76         places = val;
  77     }
  78
  79 public slots:
  80     void updateIndex(UAVObject *object1);
  81
  82
  83 protected:
  84     void paintEvent(QPaintEvent *event);
  85     void resizeEvent(QResizeEvent *event);
  86
  87 private:
  88
  89 private slots:
  90     void moveIndex();
  91
  92 private:
  93     QSvgRenderer *m_renderer;
  94     QGraphicsSvgItem *background;
  95     QGraphicsSvgItem *foreground;
  96     QGraphicsSvgItem *index;
  97     QGraphicsSvgItem *green;
  98     QGraphicsSvgItem *yellow;
  99     QGraphicsSvgItem *red;
 100     QGraphicsSvgItem *fieldSymbol;
 101
 102     QGraphicsTextItem *fieldName;
 103     QGraphicsTextItem *fieldValue;
 104
 105     // Simple flag to skip rendering if the
 106     bool fgenabled; // layer does not exist.
 107     bool verticalDial; // True if the dials scales vertically.
 108
 109     qreal startX; // Where we should draw the bargraph
 110     qreal startY; // green/yellow/red zones.
 111     qreal bargraphSize;
 112     qreal indexHeight;
 113     qreal indexWidth;
 114
 115     double minValue;
 116     double maxValue;
 117     double greenMin;
 118     double greenMax;
 119     double yellowMin;
 120     double yellowMax;
 121     double redMin;
 122     double redMax;
 123     double factor;
 124     int places;
 125
 126     // The Value and target variables
 127     // are expressed in degrees
 128     double indexTarget;
 129     double indexValue;
 130
 131     // Rotation timer
 132     QTimer dialTimer;
 133
 134     // Name of the fields to read when an update is received:
 135     UAVDataObject *obj1;
 136     QString field1;
 137     QString subfield1;
 138     bool haveSubField1;
 139 };
 140 #endif /* LINEARDIALGADGETWIDGET_H_ */