void MSVGauge::drawGauge(void)
{
if (mapped()==MSTrue)
{
int x=sliderAreaRect().x()+SliderAreaShadowThickness;
int y=y_end();
int curValue=valueToPixel(currentValue())+slider()->height();
int startValue;
if(_startValue.isSet()==MSTrue)
{
double sv=_startValue;
if(sv<valueMin()) sv=valueMin();
else if(sv>valueMax()) sv=valueMax();
startValue=valueToPixel(sv)+slider()->height();
}
else startValue=y-SliderAreaShadowThickness;
Direction direction=curValue<startValue?Up:Down;
int thickness=slider()->shadowThickness();
int h=abs(startValue-curValue);
int starty=(direction==Up)?startValue:curValue;
if (h>=thickness&&slider()->width()>thickness*2)
{
int height=h-(h>thickness*2?thickness*2:thickness);
XBFillRectangle(display(),window(),slider()->backgroundShadowGC(),
x+thickness,starty-h+thickness,slider()->width()-2*thickness,height);
}
if (h>thickness&&thickness>0)
{
drawGaugeShadow(x,starty,h,thickness,direction);
}
gaugeHeight(h);
_direction=direction;
}
}
void MSVGauge::updateGauge(int h_)
{
if (mapped()==MSTrue)
{
int x=sliderAreaRect().x()+SliderAreaShadowThickness;
int y=y_end();
int curValue=valueToPixel(h_)+slider()->height();
int startValue;
if(_startValue.isSet()==MSTrue)
{
double sv=_startValue;
if(sv<valueMin()) sv=valueMin();
else if(sv>valueMax()) sv=valueMax();
startValue=valueToPixel(sv)+slider()->height();
}
else startValue=y-SliderAreaShadowThickness;
Direction direction=curValue<startValue?Up:Down;
int thickness=slider()->shadowThickness();
int h=abs(startValue-curValue);
int starty=startValue;
int height=abs(h-gaugeHeight());
if (h==gaugeHeight() && direction==_direction) return;
else if (direction==_direction)
{
if (h<gaugeHeight())
{
// value is smaller, clear area
starty=direction==Up?starty-gaugeHeight():starty+h-thickness;
XFillRectangle(display(),window(),selectShadowGC(),x,starty,slider()->width(),height+thickness);
}
else
{
// value is bigger, add area
starty=direction==Up?starty-h+thickness:starty+gaugeHeight()-thickness;
XFillRectangle(display(),window(),slider()->backgroundShadowGC(),x+thickness,
starty,slider()->width()-2*thickness,height);
}
if (h>thickness&&thickness>0) updateGaugeShadow(x,starty,h,thickness,direction);
}
else
{
// direction changed, redraw
drawSliderArea();
drawGauge();
}
gaugeHeight(h);
_direction=direction;
}
}
void Chart::drawFullGraphLine() {
boolean first = true;
for( int i = 0 ; i < _numValues ; i++ ) {
int x = _x1+(i*_step);
_lcd->fillRect(0, x, _y1, x+_step, _y2);
preventLCDBufferOverflow();
int value = constrain( _y2-valueToPixel(_values[i]),
_y1,
_y2 );
if(x > _x2) {
break;
}
if(first) {
first = false;
_lcd->drawLine(_x1, value, x, value);
} else {
_lcd->continueLine(x+floor(_step/2), value);
}
preventLCDBufferOverflow();
}
}
void Chart::drawFullGraphBar(boolean relativeToOffset) {
for( int i = 0 ; i < _numValues ; i++ ) {
int x = _x1+(i*_step);
int offsetPx = _y2;
if(relativeToOffset) {
offsetPx = _y2 - abs(_offset * _verticalRatio);
}
int value = constrain( _y2-valueToPixel(_values[i]),
_y1,
_y2 );
drawBar(x, value, offsetPx);
preventLCDBufferOverflow();
}
}
void AudioSignal::paintEvent(QPaintEvent* /*e*/)
{
if (!m_aMonitoringEnabled->isChecked() || !isVisible()) {
return;
}
QPainter p(this);
int numchan = channels.size();
bool horiz=width() > height();
int dbsize = fontMetrics().width("-60") + 2;
bool showdb=width()>(dbsize+2);
const int h = IEC_Scale(-dbscale.at(0)) * height() - 2;
//valpixel=1.0 for 127, 1.0+(1/40) for 1 short oversample, 1.0+(2/40) for longer oversample
for (int i = 0; i < numchan; i++) {
double valpixel=valueToPixel((double)(unsigned char)channels[i]/127.0);
int maxx= h * valpixel;
int xdelta= h / 42 ;
int _y2= (showdb?width()-dbsize:width () ) / numchan - 1 ;
int _y1= (showdb?width()-dbsize:width() ) *i/numchan;
int _x2= maxx > xdelta ? xdelta - 3 : maxx - 3 ;
if (horiz){
dbsize=9;
showdb=height()>(dbsize);
maxx=width()*valpixel;
xdelta = width() / 42;
_y2=( showdb?height()-dbsize:height() ) / numchan - 1 ;
_y1= (showdb?height()-dbsize:height() ) * i/numchan;
_x2= maxx > xdelta ? xdelta - 1 : maxx - 1;
}
for (int x = 0; x <= 42; x++) {
int _x1= x *xdelta;
QColor sig=Qt::green;
//value of actual painted digit
double ival=(double)_x1/(double)xdelta/42.0;
if (ival > 40.0/42.0){
sig=Qt::red;
}else if ( ival > 37.0/42.0){
sig=Qt::darkYellow;
}else if ( ival >30.0/42.0){
sig=Qt::yellow;
}
if (maxx > 0) {
if (horiz){
p.fillRect(_x1, _y1, _x2, _y2, QBrush(sig, Qt::SolidPattern) );
}else{
p.fillRect(_y1+dbsize, height()-_x1, _y2,-_x2, QBrush(sig, Qt::SolidPattern) );
}
maxx -= xdelta;
}
}
int xp=valueToPixel((double)peeks.at(i)/127.0)*(horiz?width():h)-2;
p.fillRect(horiz?xp:_y1+dbsize, horiz?_y1:height()-xdelta-xp, horiz?3:_y2, horiz?_y2:3, QBrush(Qt::black,Qt::SolidPattern));
}
if (showdb){
//draw db value at related pixel
for (int l=0;l<dbscale.size();l++){
if (!horiz){
double xf = IEC_Scale(dbscale.at(l)) * h;
p.drawText(0, height() - xf + 2, QString().sprintf("%s%d",dbscale.at(l)>=0?" ":"",dbscale.at(l)));
}else{
double xf = IEC_Scale(dbscale.at(l)) * (double) width();
p.drawText(xf*40/42-10,height()-2, QString().sprintf("%d",dbscale.at(l)));
}
}
}
p.end();
}
QImage AudioSignal::renderAudioScope(uint, const QVector<int16_t> audioFrame,
const int, const int num_channels, const int samples, const int)
{
QTime start = QTime::currentTime();
int num_samples = samples > 200 ? 200 : samples;
QByteArray channels;
for (int i = 0; i < num_channels; i++) {
long val = 0;
for (int s = 0; s < num_samples; s ++) {
val += abs(audioFrame[i+s*num_channels] / 128);
}
channels.append(val / num_samples);
}
if (peeks.count()!=channels.count()){
peeks=QByteArray(channels.count(),0);
peekage=QByteArray(channels.count(),0);
}
for (int chan=0;chan<peeks.count();chan++)
{
peekage[chan] = peekage[chan]+1;
if ( peeks.at(chan)<channels.at(chan) || peekage.at(chan)>50 )
{
peekage[chan]=0;
peeks[chan]=channels[chan];
}
}
QImage image(m_scopeRect.size(), QImage::Format_ARGB32);
image.fill(Qt::transparent);
QPainter p(&image);
p.setPen(Qt::white);
p.setRenderHint(QPainter::TextAntialiasing, false);
p.setRenderHint(QPainter::Antialiasing, false);
int numchan = channels.size();
bool horiz=width() > height();
int dbsize=20;
bool showdb=width()>(dbsize+40);
//valpixel=1.0 for 127, 1.0+(1/40) for 1 short oversample, 1.0+(2/40) for longer oversample
for (int i = 0; i < numchan; i++) {
//int maxx= (unsigned char)channels[i] * (horiz ? width() : height() ) / 127;
double valpixel=valueToPixel((double)(unsigned char)channels[i]/127.0);
int maxx= height() * valpixel;
int xdelta= height() /42 ;
int _y2= (showdb?width()-dbsize:width () ) / numchan - 1 ;
int _y1= (showdb?width()-dbsize:width() ) *i/numchan;
int _x2= maxx > xdelta ? xdelta - 3 : maxx - 3 ;
if (horiz){
dbsize=9;
showdb=height()>(dbsize);
maxx=width()*valpixel;
xdelta = width() / 42;
_y2=( showdb?height()-dbsize:height() ) / numchan - 1 ;
_y1= (showdb?height()-dbsize:height() ) * i/numchan;
_x2= maxx > xdelta ? xdelta - 1 : maxx - 1;
}
for (int x = 0; x <= 42; x++) {
int _x1= x *xdelta;
QColor sig=Qt::green;
//value of actual painted digit
double ival=(double)_x1/(double)xdelta/42.0;
if (ival > 40.0/42.0){
sig=Qt::red;
}else if ( ival > 37.0/42.0){
sig=Qt::darkYellow;
}else if ( ival >30.0/42.0){
sig=Qt::yellow;
}
if (maxx > 0) {
if (horiz){
p.fillRect(_x1, _y1, _x2, _y2, QBrush(sig, Qt::SolidPattern) );
}else{
p.fillRect(_y1, height()-_x1, _y2,-_x2, QBrush(sig, Qt::SolidPattern) );
}
maxx -= xdelta;
}
}
int xp=valueToPixel((double)peeks.at(i)/127.0)*(horiz?width():height())-2;
p.fillRect(horiz?xp:_y1,horiz?_y1:height()-xdelta-xp,horiz?3:_y2,horiz?_y2:3,QBrush(Qt::gray,Qt::SolidPattern));
}
if (showdb){
//draw db value at related pixel
for (int l=0;l<dbscale.size();l++){
if (!horiz){
double xf=pow(10.0,(double)dbscale.at(l) / 20.0 )*(double)height();
p.drawText(width()-20,height()-xf*40.0/42.0+20, QString().sprintf("%d",dbscale.at(l)));
}else{
double xf=pow(10.0,(double)dbscale.at(l) / 20.0 )*(double)width();
p.drawText(xf*40/42-10,height()-2, QString().sprintf("%d",dbscale.at(l)));
}
}
}
p.end();
emit signalScopeRenderingFinished((uint) start.elapsed(), 1);
return image;
}
