git.maemo.org Git - mardrone/blob - mardrone/gauges/gaugehsi.cpp

   1 #include "gaugehsi.h"
   2
   3 GaugeHSI::GaugeHSI(QGraphicsItem *parent) :
   4     Gauge(parent)
   5 {
   6 }
   7
   8 void GaugeHSI::paintHSI(QPainter *painter,int width,int height)
   9 {
  10     float alpha;
  11     int xo=(width/2)/m_scale;
  12     int yo=(height/2)/m_scale;
  13     painter->setTransform(QTransform().scale(m_scale,m_scale));
  14     QTransform savematrix= painter->transform ();
  15     QPen pen(m_color);
  16     pen.setWidth(1);
  17     painter->setPen(pen);
  18     QBrush cbrush(m_color);
  19     painter->setBrush(cbrush);
  20
  21
  22     QPen nopen(Qt::NoPen);
  23     QBrush nbrush(Qt::NoBrush);
  24     QBrush backBrush(m_backColor);
  25
  26     alpha=0;
  27     painter->setFont(m_font);
  28     QFontMetrics fm(m_font);
  29     QPolygon zeroTriangle;
  30     QPolygon zeroPlane;
  31
  32     zeroPlane+=QPoint(-2,0);
  33     zeroPlane+=QPoint(-20,0);
  34     zeroPlane+=QPoint(-20,-2);
  35     zeroPlane+=QPoint(-2,-4);
  36     zeroPlane+=QPoint(0,-14);
  37     zeroPlane+=QPoint(2,-4);
  38     zeroPlane+=QPoint(20,-2);
  39     zeroPlane+=QPoint(20,0);
  40     zeroPlane+=QPoint(2,0);
  41     zeroPlane+=QPoint(2,15);
  42     zeroPlane+=QPoint(10,15);
  43     zeroPlane+=QPoint(10,18);
  44     zeroPlane+=QPoint(-10,18);
  45     zeroPlane+=QPoint(-10,15);
  46     zeroPlane+=QPoint(-2,15);
  47
  48     zeroTriangle+=QPoint(0,-xo+10);
  49     zeroTriangle+=QPoint(-5,-xo);
  50     zeroTriangle+=QPoint(5,-xo);
  51     zeroTriangle+=QPoint(0,-xo+10);
  52
  53
  54
  55     painter->setTransform(QTransform().translate(xo+scenePos().x()/m_scale, yo+scenePos().y()/m_scale),true);
  56     painter->setBrush(backBrush);
  57     painter->setPen(nopen);
  58     painter->drawChord(QRect(-xo,-xo,2*xo,2*xo),0,360*16);
  59     painter->setBrush(cbrush);
  60     painter->setPen(pen);
  61
  62     painter->drawPolygon(zeroTriangle);
  63      painter->drawPolygon(zeroPlane);
  64
  65     while(alpha<360) {
  66         QString label;
  67         painter->setTransform(savematrix);
  68         painter->setTransform(QTransform().translate(xo+scenePos().x()/m_scale, yo+scenePos().y()/m_scale).rotate(alpha+m_value),true);
  69         label=QString("%1").arg(alpha/10);
  70         if(alpha==0)   label=" N";
  71         if(alpha==90)  label=" E";
  72         if(alpha==180) label=" S";
  73         if(alpha==270) label=" W";
  74         int labelWidth=fm.width(label);
  75         int labelHeight=fm.height();
  76         painter->drawText(labelWidth/-2,-xo+10+labelHeight,label);
  77         painter->drawLine(0,xo-2,0,xo-12);
  78         painter->setTransform(savematrix);
  79         painter->setTransform(QTransform().translate(xo+scenePos().x()/m_scale, yo+scenePos().y()/m_scale).rotate(alpha+m_value+10),true);
  80         painter->drawLine(0,xo-2,0,xo-7);
  81         painter->setTransform(savematrix);
  82         painter->setTransform(QTransform().translate(xo+scenePos().x()/m_scale, yo+scenePos().y()/m_scale).rotate(alpha+m_value+20),true);
  83         painter->drawLine(0,xo-2,0,xo-7);
  84         painter->setTransform(savematrix);
  85         painter->setTransform(QTransform().translate(xo+scenePos().x()/m_scale, yo+scenePos().y()/m_scale).rotate(alpha+m_value+5),true);
  86         painter->drawLine(0,xo-2,0,xo-7);
  87         painter->setTransform(savematrix);
  88         painter->setTransform(QTransform().translate(xo+scenePos().x()/m_scale, yo+scenePos().y()/m_scale).rotate(alpha+m_value+15),true);
  89         painter->drawLine(0,xo-2,0,xo-7);
  90         painter->setTransform(savematrix);
  91         painter->setTransform(QTransform().translate(xo+scenePos().x()/m_scale, yo+scenePos().y()/m_scale).rotate(alpha+m_value+25),true);
  92         painter->drawLine(0,xo-2,0,xo-7);
  93         alpha+=m_tickIncrement;
  94     }
  95 }
  96
  97 void GaugeHSI::paint(QPainter *painter,const QStyleOptionGraphicsItem *option,
  98                            QWidget *widget)
  99 {
 100         paintHSI(painter,size().width(),size().height());
 101 };