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#include <qdialog.h>
#include <qwt_counter.h>
class QLabel;
class QPushButton;
class QMenuBar;
class QPopupMenu;
class QwtCounter;
class QwtThermo;
//
// A simple first-order lowpass used for averaging
//
class Lowpass
{
public:
Lowpass();
void setTConst(double t){tconst = t; recalc();}
void setTSampl(double t){tsampl = t; recalc();}
void reset(double v) { val = v; }
double input(double v);
double value() {return val;}
private:
void recalc();
double val;
double tsampl;
double tconst;
double c1;
double c2;
};
//
// A dialog for configuring the sampling rate and the lowpass constant
//
class ConfigDiag : public QDialog
{
Q_OBJECT
public:
ConfigDiag(QWidget *p = 0, const char *name = 0);
~ConfigDiag();
double tSampl() {return ctSampl->value();}
double tConst() {return ctConst->value();}
signals:
void tSamplChg(double);
void tConstChg(double);
public slots:
void setTSampl(double);
void setTConst(double);
protected slots:
void chgTSampl(double t) { emit tSamplChg(t); }
void chgTConst(double t) { emit tConstChg(t); }
private:
QwtCounter *ctSampl;
QwtCounter *ctConst;
QLabel *lbSampl;
QLabel *lbConst;
QPushButton *btDismiss;
};
//
// The main window
//
class MainWin : public QWidget
{
Q_OBJECT
public:
MainWin(QApplication &a);
~MainWin();
void start();
void update();
void read();
void setTimer(int ms);
public slots:
void setTSampl(double sec);
void setTConst(double sec);
void setFixedScale();
void setDynScale() { dynscale = 1; }
void showDialog();
protected:
void timerEvent(QTimerEvent *e);
private:
enum { CpuUser, CpuNice, CpuSystem, CpuIdle, ThermoCnt };
QwtThermo *th[ThermoCnt];
QLabel *lb[ThermoCnt];
ConfigDiag *cfg;
QMenuBar *menu;
QPopupMenu *puProg;
QPopupMenu *puConf;
QPopupMenu *puScale;
Lowpass lp[ThermoCnt];
unsigned long val[ThermoCnt];
unsigned long old[ThermoCnt];
int dynscale;
int tmrID;
};
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