/** Overloads default QWidget::paintEvent. Draws the actual
* bandwidth graph. */
void RSGraphWidget::paintEvent(QPaintEvent *)
{
//std::cerr << "In paint event!" << std::endl;
/* Set current graph dimensions */
_rec = this->frameRect();
/* Start the painter */
_painter->begin(this);
/* We want antialiased lines and text */
_painter->setRenderHint(QPainter::Antialiasing);
_painter->setRenderHint(QPainter::TextAntialiasing);
/* Fill in the background */
_painter->fillRect(_rec, QBrush(BACK_COLOR));
_painter->drawRect(_rec);
/* Paint the scale */
paintScale1();
/* Plot the rsDHT/allDHT data */
paintData();
/* Paint the rsDHT/allDHT totals */
paintTotals();
// part of the scale that needs to write over the data curves.
paintScale2();
if(_flags & RSGRAPH_FLAGS_SHOW_LEGEND)
paintLegend() ;
/* Stop the painter */
_painter->end();
}
/** Overloads default QWidget::paintEvent. Draws the actual
* bandwidth graph. */
void
GraphFrame::paintEvent(QPaintEvent *event)
{
Q_UNUSED(event);
/* Set current graph dimensions */
_rec = this->frameRect();
/* Start the painter */
_painter->begin(this);
/* We want antialiased lines and text */
_painter->setRenderHint(QPainter::Antialiasing);
_painter->setRenderHint(QPainter::TextAntialiasing);
/* Fill in the background */
_painter->fillRect(_rec, QBrush(BACK_COLOR));
_painter->drawRect(_rec);
/* Paint the scale */
paintScale();
/* Plot the send/receive data */
paintData();
/* Paint the send/recv totals */
paintTotals();
/* Stop the painter */
_painter->end();
}
void ComediScope::paintEvent( QPaintEvent * ) {
int ret;
while (1) {
// we need data in all the comedi devices
for(int n=0;n<nComediDevices;n++) {
if (!comedi_get_buffer_contents(dev[n],subdevice))
return;
}
for(int n=0;n<nComediDevices;n++) {
int subdev_flags = comedi_get_subdevice_flags(dev[n],
subdevice);
int bytes_per_sample;
if(subdev_flags & SDF_LSAMPL) {
bytes_per_sample = sizeof(lsampl_t);
} else {
bytes_per_sample = sizeof(sampl_t);
}
unsigned char buffer[bytes_per_sample*channels_in_use];
ret = read(comedi_fileno(dev[n]),
buffer,
bytes_per_sample*channels_in_use);
if (ret==0) {
printf("BUG! No data in buffer.\n");
exit(1);
}
if (ret<0) {
printf("\n\nError %d during read! Exiting.\n\n",ret);
exit(1);
}
for(int i=0;i<channels_in_use;i++) {
int sample;
if (comediRecord->channel[n][i]->isActive()) {
int ch = comediRecord->channel[n][i]->getChannel();
if(subdev_flags & SDF_LSAMPL) {
sample = ((int)((lsampl_t *)buffer)[ch]);
} else {
sample = ((int)((sampl_t *)buffer)[ch]);
}
// store raw data
daqData[n][i] = sample;
// convert data to physical units for plotting
float value = comedi_to_phys(sample,
crange[n],
maxdata[n]);
// filtering
value = comediRecord->dcSub[n][i]->filter(value);
value = comediRecord->hp[n][i]->filter(value);
value = comediRecord->lp[n][i]->filter(value);
// remove 50Hz
if (comediRecord->filterCheckbox->checkState()==Qt::Checked) {
value=iirnotch[n][i]->filter(value);
}
if ((n==fftdevno) && (ch==fftch) &&
(comediRecord->fftscope))
comediRecord->fftscope->append(value);
// average response if TB is slower than sampling rate
adAvgBuffer[n][i] = adAvgBuffer[n][i] + value;
}
}
}
// save data
if (comediRecord->recPushButton->checkState()==Qt::Checked) {
writeFile();
}
nsamples++;
tb_counter--;
// enough averaged?
if (tb_counter<=0) {
for(int n=0;n<nComediDevices;n++) {
for(int i=0;i<channels_in_use;i++) {
adAvgBuffer[n][i]=adAvgBuffer[n][i]/tb_init;
}
}
// plot the stuff
paintData(adAvgBuffer);
// clear buffer
tb_counter=tb_init;
for(int n=0;n<nComediDevices;n++) {
for(int i=0;i<channels_in_use;i++) {
adAvgBuffer[n][i]=0;
}
}
}
}
}
