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Friday, May 9th 2008, 10:54am
Can we change the values in QwtThermo dynamically?
Using a timer event I am trying to change the values in the QWT thermo.
For every timer event I want to show different values on the thermo.
But in my case it is not happening.
Only the value at the first timer event is shown on the thermoafter that the values on QWT thermo are not getting refreshed.
Please provide me a solution to refresh the values on QwtThermo.
Code :
#include<qapplication.h>
#include <qgroupbox.h>
#include <qlayout.h>
#include <qpainter.h>
#include <qlabel.h>
#include <iostream>
#include <qframe.h>
#include <qwt_thermo.h>
#include <sys/time.h>
#include <signal.h>
using namespace std;
class SysInfo ;
SysInfo *info;
int iteration = 10 ;
int timerId;
double sri = 10;
QLabel *d_timelabel;
QwtThermo *d_timethermo;
double delay = 1;
class ValueBar: public QWidget
{
public:
ValueBar(Qt:
rientation orientation,
const QString &text, QWidget *parent):
QWidget(parent)
{
d_timelabel = new QLabel(text, this);
d_timethermo = new QwtThermo(this);
d_timethermo->setRange(0,sri);
d_timethermo->setMargin(5);
QVBoxLayout *layout = new QVBoxLayout(this);
layout->setMargin(0);
layout->setSpacing(0);
d_timelabel->setAlignment(Qt::AlignRight);
d_timethermo->setOrientation(orientation, QwtThermo::LeftScale);
layout->addWidget(d_timethermo, 10, Qt::AlignHCenter);
layout->addWidget(d_timelabel, 0);
}
~ValueBar()
{
}
private:
// QwtThermo *d_thermo;
};
QGroupBox *timeBox;
QVBoxLayout *timeLayout;
Qt:rientation o1,o2;
class SysInfo : public QFrame
{
public:
SysInfo(QWidget *parent = NULL):
QFrame(parent)
{
#if 1
o1 = Qt::Vertical;
timeBox = new QGroupBox("Time", this);
timeLayout = new QVBoxLayout(timeBox);
timeLayout->setMargin(15);
timeLayout->setSpacing(5);
d_timethermo->setFillColor(QColor("DarkMagenta"));
QHBoxLayout *layout = new QHBoxLayout(this);
layout->setMargin(10);
layout->addWidget(timeBox, 0);
#endif
}
~SysInfo()
{
}
void timerEvent(QTimerEvent *)
{
timeLayout->addWidget(new ValueBar(o1, "Time Factor",timeBox));
d_timethermo->setValue(sri);
cout<<"srii:::::::::::" << sri <<endl;
info->show();
update();
sri = sri+10;
iteration--;
cout<<"THE NUMBER OF ITERATIONS LEFT:"<<iteration<<endl;
if(iteration == 0X0)
{
killTimer(timerId);
}
}
void closeEvent(QCloseEvent *)
{
exit(0);
}
};
int main(int argc , char **argv)
{
QApplication a( argc, argv );
SysInfo *sysinfo = new SysInfo;
sysinfo->setGeometry(705,190,320,170);
info = sysinfo;
timerId = sysinfo->startTimer(delay*1000);
return a.exec();
}
Thanks in Advance.
For every timer event I want to show different values on the thermo.
But in my case it is not happening.
Only the value at the first timer event is shown on the thermoafter that the values on QWT thermo are not getting refreshed.
Please provide me a solution to refresh the values on QwtThermo.
Code :
#include<qapplication.h>
#include <qgroupbox.h>
#include <qlayout.h>
#include <qpainter.h>
#include <qlabel.h>
#include <iostream>
#include <qframe.h>
#include <qwt_thermo.h>
#include <sys/time.h>
#include <signal.h>
using namespace std;
class SysInfo ;
SysInfo *info;
int iteration = 10 ;
int timerId;
double sri = 10;
QLabel *d_timelabel;
QwtThermo *d_timethermo;
double delay = 1;
class ValueBar: public QWidget
{
public:
ValueBar(Qt:
rientation orientation,const QString &text, QWidget *parent):
QWidget(parent)
{
d_timelabel = new QLabel(text, this);
d_timethermo = new QwtThermo(this);
d_timethermo->setRange(0,sri);
d_timethermo->setMargin(5);
QVBoxLayout *layout = new QVBoxLayout(this);
layout->setMargin(0);
layout->setSpacing(0);
d_timelabel->setAlignment(Qt::AlignRight);
d_timethermo->setOrientation(orientation, QwtThermo::LeftScale);
layout->addWidget(d_timethermo, 10, Qt::AlignHCenter);
layout->addWidget(d_timelabel, 0);
}
~ValueBar()
{
}
private:
// QwtThermo *d_thermo;
};
QGroupBox *timeBox;
QVBoxLayout *timeLayout;
Qt:
rientation o1,o2;class SysInfo : public QFrame
{
public:
SysInfo(QWidget *parent = NULL):
QFrame(parent)
{
#if 1
o1 = Qt::Vertical;
timeBox = new QGroupBox("Time", this);
timeLayout = new QVBoxLayout(timeBox);
timeLayout->setMargin(15);
timeLayout->setSpacing(5);
d_timethermo->setFillColor(QColor("DarkMagenta"));
QHBoxLayout *layout = new QHBoxLayout(this);
layout->setMargin(10);
layout->addWidget(timeBox, 0);
#endif
}
~SysInfo()
{
}
void timerEvent(QTimerEvent *)
{
timeLayout->addWidget(new ValueBar(o1, "Time Factor",timeBox));
d_timethermo->setValue(sri);
cout<<"srii:::::::::::" << sri <<endl;
info->show();
update();
sri = sri+10;
iteration--;
cout<<"THE NUMBER OF ITERATIONS LEFT:"<<iteration<<endl;
if(iteration == 0X0)
{
killTimer(timerId);
}
}
void closeEvent(QCloseEvent *)
{
exit(0);
}
};
int main(int argc , char **argv)
{
QApplication a( argc, argv );
SysInfo *sysinfo = new SysInfo;
sysinfo->setGeometry(705,190,320,170);
info = sysinfo;
timerId = sysinfo->startTimer(delay*1000);
return a.exec();
}
Thanks in Advance.
This post has been edited 3 times, last edit by "srinivasj" (May 9th 2008, 1:48pm)
