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WSJT-X
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WSJT-X/plotter.cpp

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#include "plotter.h"
#include <math.h>
#include <QDebug>
#define MAX_SCREENSIZE 2048
CPlotter::CPlotter(QWidget *parent) : //CPlotter Constructor
QFrame(parent)
{
setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Expanding);
setFocusPolicy(Qt::StrongFocus);
setAttribute(Qt::WA_PaintOnScreen,false);
setAutoFillBackground(false);
setAttribute(Qt::WA_OpaquePaintEvent, false);
setAttribute(Qt::WA_NoSystemBackground, true);
m_StartFreq = 1000;
m_nSpan=1000; //Units: Hz
m_fSpan=(float)m_nSpan;
m_hdivs = HORZ_DIVS;
m_FreqUnits = 1;
m_Running = false;
m_paintEventBusy=false;
m_WaterfallPixmap = QPixmap(0,0);
m_2DPixmap = QPixmap(0,0);
m_ScalePixmap = QPixmap(0,0);
m_OverlayPixmap = QPixmap(0,0);
m_Size = QSize(0,0);
m_fQSO = 1020;
m_line = 0;
m_fSample = 12000;
m_nsps=6912;
m_dBStepSize=10;
m_Percent2DScreen = 30; //percent of screen used for 2D display
}
CPlotter::~CPlotter() { } // Destructor
QSize CPlotter::minimumSizeHint() const
{
return QSize(50, 50);
}
QSize CPlotter::sizeHint() const
{
return QSize(180, 180);
}
void CPlotter::resizeEvent(QResizeEvent* ) //resizeEvent()
{
if(!size().isValid()) return;
if( m_Size != size() ) { //if changed, resize pixmaps to new screensize
m_Size = size();
m_w = m_Size.width();
m_h = m_Size.height();
m_h1 = (100-m_Percent2DScreen)*(m_Size.height())/100;
m_h2 = (m_Percent2DScreen)*(m_Size.height())/100;
m_2DPixmap = QPixmap(m_Size.width(), m_h2);
m_2DPixmap.fill(Qt::black);
m_WaterfallPixmap = QPixmap(m_Size.width(), m_h1);
m_OverlayPixmap = QPixmap(m_Size.width(), m_h2);
m_OverlayPixmap.fill(Qt::black);
m_WaterfallPixmap.fill(Qt::black);
m_2DPixmap.fill(Qt::black);
m_ScalePixmap = QPixmap(m_w,30);
m_ScalePixmap.fill(Qt::white);
}
DrawOverlay();
}
void CPlotter::paintEvent(QPaintEvent *) // paintEvent()
{
if(m_paintEventBusy) return;
m_paintEventBusy=true;
QPainter painter(this);
painter.drawPixmap(0,0,m_ScalePixmap);
painter.drawPixmap(0,30,m_WaterfallPixmap);
painter.drawPixmap(0,m_h1,m_2DPixmap);
m_paintEventBusy=false;
}
void CPlotter::draw(float swide[], float red[], int i0) //draw()
{
int j,y2;
float y;
m_i0=i0;
double gain = pow(10.0,0.05*(m_plotGain+7));
//move current data down one line (must do this before attaching a QPainter object)
m_WaterfallPixmap.scroll(0,1,0,0,m_w,m_h1);
QPainter painter1(&m_WaterfallPixmap);
m_2DPixmap = m_OverlayPixmap.copy(0,0,m_w,m_h2);
QPainter painter2D(&m_2DPixmap);
for(int i=0; i<256; i++) { //Zero the histograms
m_hist1[i]=0;
}
painter2D.setPen(Qt::green);
if(m_bJT9Sync) painter2D.setPen(Qt::red);
QPoint LineBuf[MAX_SCREENSIZE];
j=0;
bool strong0=false;
bool strong=false;
int iz=XfromFreq(2000.0);
for(int i=0; i<m_w; i++) {
if(i>iz) swide[i]=0;
strong=false;
if(swide[i]<0) {
strong=true;
swide[i]=-swide[i];
}
y = 10.0*log10(swide[i]);
int y1 = 5.0*gain*y + 10*m_plotZero;
if (y1<0) y1=0;
if (y1>254) y1=254;
if (swide[i]>1.e29) y1=255;
m_hist1[y1]++;
painter1.setPen(m_ColorTbl[y1]);
painter1.drawPoint(i,0);
y2=0;
if(m_bCurrent) y2 = gain*y + 30;
if(m_bCumulative) y2=3*gain*10.0*log10(jt9com_.savg[i]);
if(m_bJT9Sync) y2=3.0*gain*red[i] - 20;
if(strong != strong0 or i==m_w-1) {
painter2D.drawPolyline(LineBuf,j);
j=0;
strong0=strong;
if(strong0) painter2D.setPen(Qt::red);
if(!strong0) painter2D.setPen(Qt::green);
}
LineBuf[j].setX(i);
// y2 = m_h*float(i)/m_w;
// if(m_line==10) qDebug() << i << FreqfromX(i) << m_h << y2 << m_h-y2;
LineBuf[j].setY(m_h-(y2+0.8*m_h));
j++;
}
if(swide[0]>1.0e29) m_line=0;
m_line++;
if(m_line == 13) {
UTCstr();
painter1.setPen(Qt::white);
painter1.drawText(5,10,m_sutc);
}
update(); //trigger a new paintEvent
}
void CPlotter::UTCstr()
{
int ihr,imin;
if(jt9com_.ndiskdat != 0) {
ihr=jt9com_.nutc/100;
imin=jt9com_.nutc % 100;
} else {
qint64 ms = QDateTime::currentMSecsSinceEpoch() % 86400000;
imin=ms/60000;
ihr=imin/60;
imin=imin % 60;
imin=imin - (imin % (m_TRperiod/60));
}
sprintf(m_sutc,"%2.2d:%2.2d",ihr,imin);
}
void CPlotter::DrawOverlay() //DrawOverlay()
{
if(m_OverlayPixmap.isNull()) return;
if(m_WaterfallPixmap.isNull()) return;
int w = m_WaterfallPixmap.width();
int x,y;
// int nHzDiv[11]={0,50,100,200,200,200,500,500,500,500,500};
float pixperdiv;
QRect rect;
QPainter painter(&m_OverlayPixmap);
painter.initFrom(this);
QLinearGradient gradient(0, 0, 0 ,m_h2); //fill background with gradient
gradient.setColorAt(1, Qt::black);
gradient.setColorAt(0, Qt::darkBlue);
painter.setBrush(gradient);
painter.drawRect(0, 0, m_w, m_h2);
painter.setBrush(Qt::SolidPattern);
double df = m_binsPerPixel*m_fftBinWidth;
pixperdiv = m_freqPerDiv/df;
y = m_h2 - m_h2/VERT_DIVS;
for( int i=1; i<m_hdivs; i++) //draw vertical grids
{
x = (int)( (float)i*pixperdiv );
painter.setPen(QPen(Qt::white, 1,Qt::DotLine));
painter.drawLine(x, 0, x , y);
painter.drawLine(x, m_h2-5, x , m_h2);
}
pixperdiv = (float)m_h2 / (float)VERT_DIVS;
painter.setPen(QPen(Qt::white, 1,Qt::DotLine));
for( int i=1; i<VERT_DIVS; i++) //draw horizontal grids
{
y = (int)( (float)i*pixperdiv );
painter.drawLine(0, y, w, y);
}
/*
//draw amplitude values
painter.setPen(Qt::yellow);
// Font.setWeight(QFont::Light);
// painter.setFont(Font);
// int dB = m_MaxdB;
int dB = 50;
for( int i=0; i<VERT_DIVS-1; i++)
{
y = (int)( (float)i*pixperdiv );
painter.drawStaticText(5, y-1, QString::number(dB)+" dB");
dB -= m_dBStepSize;
}
*/
QRect rect0;
QPainter painter0(&m_ScalePixmap);
painter0.initFrom(this);
//create Font to use for scales
QFont Font("Arial");
Font.setPointSize(12);
QFontMetrics metrics(Font);
Font.setWeight(QFont::Normal);
painter0.setFont(Font);
painter0.setPen(Qt::black);
if(m_binsPerPixel < 1) m_binsPerPixel=1;
m_fSpan = w*df;
int n=m_fSpan/10;
m_freqPerDiv=10;
if(n>25) m_freqPerDiv=50;
if(n>70) m_freqPerDiv=100;
if(n>140) m_freqPerDiv=200;
if(n>310) m_freqPerDiv=500;
m_hdivs = w*df/m_freqPerDiv + 0.9999;
m_ScalePixmap.fill(Qt::white);
painter0.drawRect(0, 0, w, 30);
//draw tick marks on upper scale
pixperdiv = m_freqPerDiv/df;
for( int i=1; i<m_hdivs; i++) { //major ticks
x = (int)( (float)i*pixperdiv );
painter0.drawLine(x,18,x,30);
}
int minor=5;
if(m_freqPerDiv==200) minor=4;
for( int i=1; i<minor*m_hdivs; i++) { //minor ticks
x = i*pixperdiv/minor;
painter0.drawLine(x,24,x,30);
}
//draw frequency values
MakeFrequencyStrs();
for( int i=0; i<=m_hdivs; i++) {
if(0==i) {
//left justify the leftmost text
x = (int)( (float)i*pixperdiv);
rect0.setRect(x,0, (int)pixperdiv, 20);
painter0.drawText(rect0, Qt::AlignLeft|Qt::AlignVCenter,
m_HDivText[i]);
}
else if(m_hdivs == i) {
//right justify the rightmost text
x = (int)( (float)i*pixperdiv - pixperdiv);
rect0.setRect(x,0, (int)pixperdiv, 20);
painter0.drawText(rect0, Qt::AlignRight|Qt::AlignVCenter,
m_HDivText[i]);
} else {
//center justify the rest of the text
x = (int)( (float)i*pixperdiv - pixperdiv/2);
rect0.setRect(x,0, (int)pixperdiv, 20);
painter0.drawText(rect0, Qt::AlignHCenter|Qt::AlignVCenter,
m_HDivText[i]);
}
}
QPen pen0(Qt::green, 3); //Mark QSO Freq with green tick
painter0.setPen(pen0);
x = m_xClick;
painter0.drawLine(x,15,x,30);
int x1=x - m_tol/df;
int x2=x + m_tol/df;
pen0.setWidth(6);
painter0.drawLine(x1,28,x2,28);
/*
df = 12000.0/m_nsps;
int nlabs=df*w/m_freqPerDiv + 1.0;
// m_LowerScalePixmap.fill(Qt::white);
// painter3.drawRect(0, 0, w, 30);
pixperdiv = m_freqPerDiv/df;
for( int i=0; i<10*nlabs; i++) {
x = i*pixperdiv/10;
y=24;
if ((i%10) == 0) y=18;
// painter3.drawLine(x,y,x,30);
}
*/
}
void CPlotter::MakeFrequencyStrs() //MakeFrequencyStrs
{
float freq;
for(int i=0; i<=m_hdivs; i++) {
freq = m_StartFreq + i*m_freqPerDiv;
m_HDivText[i].setNum((int)freq);
// StartFreq += m_freqPerDiv;
}
}
int CPlotter::XfromFreq(float f) //XfromFreq()
{
// float w = m_WaterfallPixmap.width();
int x = (int) m_w * (f - m_StartFreq)/m_fSpan;
if(x<0 ) return 0;
if(x>m_w) return m_w;
return x;
}
float CPlotter::FreqfromX(int x) //FreqfromX()
{
return float(1000.0 + x*m_binsPerPixel*m_fftBinWidth);
}
void CPlotter::SetRunningState(bool running) //SetRunningState()
{
m_Running = running;
}
void CPlotter::setPlotZero(int plotZero) //setPlotZero()
{
m_plotZero=plotZero;
}
int CPlotter::getPlotZero() //getPlotZero()
{
return m_plotZero;
}
void CPlotter::setPlotGain(int plotGain) //setPlotGain()
{
m_plotGain=plotGain;
}
int CPlotter::getPlotGain() //getPlotGain()
{
return m_plotGain;
}
void CPlotter::SetStartFreq(quint64 f) //SetStartFreq()
{
m_StartFreq=f;
// resizeEvent(NULL);
DrawOverlay();
}
qint64 CPlotter::startFreq() //startFreq()
{
return m_StartFreq;
}
int CPlotter::plotWidth(){return m_WaterfallPixmap.width();}
void CPlotter::UpdateOverlay() {DrawOverlay();}
void CPlotter::setDataFromDisk(bool b) {m_dataFromDisk=b;}
void CPlotter::setTol(int n) //setTol()
{
m_tol=n;
DrawOverlay();
}
int CPlotter::Tol() //Tol()
{
return m_tol;
}
void CPlotter::setBinsPerPixel(int n) // set nbpp
{
m_binsPerPixel = n;
DrawOverlay(); //Redraw scales and ticks
update(); //trigger a new paintEvent}
}
int CPlotter::binsPerPixel() // get nbpp
{
return m_binsPerPixel;
}
void CPlotter::setFQSO(int x, bool bf) //setFQSO()
{
if(bf) {
m_fQSO=x; // x is freq in Hz
m_xClick=XfromFreq(m_fQSO);
} else {
if(x<0) x=0; // x is pixel number
if(x>m_Size.width()) x=m_Size.width();
m_fQSO = int(FreqfromX(x)+0.5);
m_xClick=x;
}
DrawOverlay();
update();
}
void CPlotter::setFcal(int n) //setFcal()
{
m_fCal=n;
}
int CPlotter::fQSO() {return m_fQSO;} //get fQSO
void CPlotter::mousePressEvent(QMouseEvent *event) //mousePressEvent
{
int x=event->x();
setFQSO(x,false); // Wideband waterfall
}
void CPlotter::mouseDoubleClickEvent(QMouseEvent *event) //mouse2click
{
// int h = (m_Size.height()-60)/2;
int x=event->x();
setFQSO(x,false);
emit freezeDecode1(2); //### ???
}
int CPlotter::autoZero() //autoZero()
{
int w = m_Size.width();
m_z1=0;
int sum1=0;
for(int i=0; i<256; i++) {
sum1 += m_hist1[i];
if(sum1 > int(0.7*w)) {
m_z1=i;
break;
}
}
double gain = pow(10.0,0.05*(m_plotGain+7));
if(m_z1 < 255) {
double dz1 = m_z1/(5.0*gain);
m_plotZero = int(m_plotZero + dz1 + 0.5);
if(m_z1==0) m_plotZero = m_plotZero - 5;
}
return m_plotZero;
}
void CPlotter::setNSpan(int n) //setNSpan()
{
m_nSpan=n;
}
void CPlotter::setPalette(QString palette) //setPalette()
{
if(palette=="Linrad") {
float twopi=6.2831853;
float r,g,b,phi,x;
for(int i=0; i<256; i++) {
r=0.0;
if(i>105 and i<=198) {
phi=(twopi/4.0) * (i-105.0)/(198.0-105.0);
r=sin(phi);
} else if(i>=198) {
r=1.0;
}
g=0.0;
if(i>35 and i<198) {
phi=(twopi/4.0) * (i-35.0)/(122.5-35.0);
g=0.625*sin(phi);
} else if(i>=198) {
x=(i-186.0);
g=-0.014 + 0.0144*x -0.00007*x*x +0.000002*x*x*x;
if(g>1.0) g=1.0;
}
b=0.0;
if(i<=117) {
phi=(twopi/2.0) * i/117.0;
b=0.4531*sin(phi);
} else if(i>186) {
x=(i-186.0);
b=-0.014 + 0.0144*x -0.00007*x*x +0.000002*x*x*x;
if(b>1.0) b=1.0;
}
m_ColorTbl[i].setRgb(int(255.0*r),int(255.0*g),int(255.0*b));
}
m_ColorTbl[255].setRgb(255,255,100);
}
if(palette=="CuteSDR") {
for( int i=0; i<256; i++) {
if( (i<43) )
m_ColorTbl[i].setRgb( 0,0, 255*(i)/43);
if( (i>=43) && (i<87) )
m_ColorTbl[i].setRgb( 0, 255*(i-43)/43, 255 );
if( (i>=87) && (i<120) )
m_ColorTbl[i].setRgb( 0,255, 255-(255*(i-87)/32));
if( (i>=120) && (i<154) )
m_ColorTbl[i].setRgb( (255*(i-120)/33), 255, 0);
if( (i>=154) && (i<217) )
m_ColorTbl[i].setRgb( 255, 255 - (255*(i-154)/62), 0);
if( (i>=217) )
m_ColorTbl[i].setRgb( 255, 0, 128*(i-217)/38);
}
m_ColorTbl[255].setRgb(255,255,100);
}
if(palette=="Blue") {
FILE* fp=fopen("blue.dat","r");
int n,r,g,b;
float xr,xg,xb;
for(int i=0; i<256; i++) {
fscanf(fp,"%d%f%f%f",&n,&xr,&xg,&xb);
r=255.0*xr + 0.5;
g=255.0*xg + 0.5;
b=255.0*xb + 0.5;
m_ColorTbl[i].setRgb(r,g,b);
}
}
if(palette=="AFMHot") {
FILE* fp=fopen("afmhot.dat","r");
int n,r,g,b;
float xr,xg,xb;
for(int i=0; i<256; i++) {
fscanf(fp,"%d%f%f%f",&n,&xr,&xg,&xb);
r=255.0*xr + 0.5;
g=255.0*xg + 0.5;
b=255.0*xb + 0.5;
m_ColorTbl[i].setRgb(r,g,b);
}
}
}
double CPlotter::fGreen()
{
return m_fGreen;
}
void CPlotter::setNsps(int ntrperiod, int nsps) //setNSpan()
{
m_TRperiod=ntrperiod;
m_nsps=nsps;
m_fftBinWidth=1500.0/2048.0;
if(m_nsps==15360) m_fftBinWidth=1500.0/2048.0;
if(m_nsps==40960) m_fftBinWidth=1500.0/6144.0;
if(m_nsps==82944) m_fftBinWidth=1500.0/12288.0;
if(m_nsps==252000) m_fftBinWidth=1500.0/32768.0;
DrawOverlay(); //Redraw scales and ticks
update(); //trigger a new paintEvent}
}
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