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#include "vumeter.h"
#include "qtrec.h"
#include <qtimer.h>
#include <math.h>
#include <qdrawutl.h>
#include <opie2/odebug.h>
using namespace Opie::Core;
//************************************************************
//===========================================================-VUMeter
///// copyright : (C) 1999 bY Martin Lorenz
////// email : lorenz@ch.tum.de
VUMeter::VUMeter(QWidget *parent, const char *name, const int tr)
: QWidget( parent, name )
{
// qDebug("Making VUMeter");
int tracks = tr;
int i;
qWarning("initialize peakvalues");
for(i=0;i < tracks+2;i++) {
peak[i] = hold[i] = 32768;
// i_peak[i]=i_hold[i]=32768;
holdTime[i] = 20;
}
para.onOff = true;
para.hold = 20;
para.update = 25; //timer
para.leds = 17;
para.reso = 3;
para.resoFactor = pow(2, para.reso/6.0);
for( i = 0; i < para.leds; i++) color[i] = green;
color[0] = color[1] = red;
color[2] = color[3] = color[4] = color[5] = yellow;
buffer = new QPixmap();
setBackgroundMode(NoBackground);
vuTimer = new QTimer(this,"vu timer");
// vuProp= new QPopupMenu(NULL,"vu popoup");
// vuProp->insertItem(("O&n"),this,SLOT(slotOn()),0,0 );
// vuProp->setItemEnabled(0, FALSE);
// vuProp->insertItem(("O&ff"),this,SLOT(slotOff()), 0,1);
// vuProp->insertSeparator();
// vuProp->insertItem(("&Properties..."),this,SLOT(slotProps()) );
// dia=new VUMeterDialog(¶);
// connect(dia, SIGNAL(accepted()), this, SLOT(update()) );
// QtRec *qtrecPtr;
// if(qtrecPtr->tab_2->isActiveWindow())
// vuTimer->start( 50 /*para.update*/, FALSE);
// startTimer();
connect(vuTimer, SIGNAL(timeout()), this , SLOT(timeSlot()));
// update();
}
VUMeter::~VUMeter(){
// delete vuProp;
}
void VUMeter::update(){
qWarning("vumeter update");
vuTimer->start(para.update, FALSE);
if (para.onOff) {
// vuProp->setItemEnabled(0, FALSE);
// vuProp->setItemEnabled(1, TRUE);
disconnect(vuTimer, SIGNAL(timeout()), this , SLOT(timeSlot()));
connect(vuTimer, SIGNAL(timeout()), this , SLOT(timeSlot()));
} else {
// vuProp->setItemEnabled(0, TRUE);
// vuProp->setItemEnabled(1, FALSE);
disconnect(vuTimer, SIGNAL(timeout()), this , SLOT(timeSlot()));
}
resize();
}
void VUMeter::slotOn() {
connect(vuTimer, SIGNAL(timeout()), this , SLOT(timeSlot()));
para.onOff=true;
// dia->updatePara();
// vuProp->setItemEnabled(0, FALSE);
// vuProp->setItemEnabled(1, TRUE);
}
void VUMeter::slotOff() {
disconnect(vuTimer, SIGNAL(timeout()), this , SLOT(timeSlot()));
para.onOff=false;
// dia->updatePara();
// vuProp->setItemEnabled(0, TRUE);
// vuProp->setItemEnabled(1, FALSE);
}
void VUMeter::slotProps() {
qDebug("VU-Dialog");
// dia->show();
}
void VUMeter::paintEvent(QPaintEvent* e) {
Q_UNUSED(e);
bitBlt(this, 0, 0, buffer);
}
void VUMeter::mousePressEvent(QMouseEvent* e) {
Q_UNUSED(e);
// if (e->button() == RightButton)
// vuProp->popup(QCursor::pos() );
}
void VUMeter::resizeEvent(QResizeEvent* event) {
buffer->resize(event->size());
resize();
}
void VUMeter::resize() {
qWarning("resize VUMeter painting");
if(buffer == 0)
qDebug("Dude NULL pixmap buffer!");
buffer->fill(black);
x=width()-7; y=height()-12;
dx=x/(tracks+2); dy=y/(para.leds+2); // size of one LED + black frame
ox=dx/6+4+(x-(tracks+2)*dx)/2;
oy=dy/5+5+(y-(para.leds+2)*dy)/2; //offsets
sx=(4*dx)/6; sy=(4*dy)/5; //size of one LED
QPainter painter; QString str; QFont font;
int i, textOffset=0;
if( painter.begin(buffer) ==FALSE)
qWarning("Painting pixmap did not work!");
else {
// QColor c;
//c.setHsv( (x * 255)/w, 255, 255 );// rainbow effect
// c.setRgb( 255, 0, 255);
// p.setPen(c);
painter.setPen(green);
qDrawShadePanel ( &painter, 0,0, width(),height(), colorGroup(), TRUE, 2, 0);
if (2*dy-2 == 10) textOffset=1;
font=painter.font(); font.setPointSize(2*dy-2);
painter.setFont(font);
for(i=0;i<tracks+2;i++) {
painter.setPen(green); painter.setBrush(green);
str.sprintf("%d",i+1);
if (i==tracks) str.sprintf("L");
if (i==tracks+1) str.sprintf("R");
painter.drawRect(ox+dx*i,oy+dy*(para.leds)-2,sx,2*dy-1);
// painter.drawRect(ox+dx*i,oy+dy*(15)+1,sx,2*dy-1);
painter.setPen(black);
painter.drawText(textOffset+ox+dx*i,oy+dy*(para.leds)-2,sx,2*dy,AlignCenter,str);
// painter.drawText(textOffset+ox+dx*i,oy+dy*(15),sx,2*dy,AlignCenter,str);
}
painter.end();
paint();
}
}
void VUMeter::timeSlot() {
int i;
// getting stuck here
// qDebug("calling paint() from timeSlot()\n");
paint();
for(i=0;i<tracks+2;i++) {
peak[i] /= para.resoFactor;
// i_peak[i] /= (int)para.resoFactor;
}
//cout <<"VU "<<peak[0]<<"\n";
}
void VUMeter::paint() {
int i, k;
float p, h ;
// int i_p, i_h;
//draw background in resizeEvent
//cout <<x <<" "<<y <<" "<<dx<<" " <<dy <<" vumeter.paint\n";
// qDebug("paint()\n");
QPainter painter;
painter.begin(buffer);
int c;
for(i=0;i<tracks+2;i++) {
// i_p=i_peak[i]; i_h=i_hold[i];
p=peak[i]; h=hold[i];
if (p>=32767) p=32768;
// if (i_p>=32767) i_p=32768;
if (h>=32767) h=32768;
// if (i_h>=32767) i_h=32768;
for(k=para.leds+1; k>=2; k--) {
c=para.leds+1-k;
if (p>=32768) { //LED on
// if (i_p>=32768) { //LED on
painter.setBrush(color[c]);
} else { //LED off
//painter.setPen(color[c].dark(300));
painter.setBrush(color[c].dark(300));
}
if (h>=32768) { //LED-Frame on
// if (i_h>=32768) { //LED-Frame on
painter.setPen(color[c]);
} else { //LED off
painter.setPen(color[c].dark(300));
}
painter.drawRect(ox+dx*i,oy+dy*c,sx,sy);
p*=para.resoFactor; h*=para.resoFactor;
// i_p*=(int)para.resoFactor; i_h*=(int)para.resoFactor;
}
if (--holdTime[i]<=0) hold[i]=peak[i];
// if (--holdTime[i]<=0) i_hold[i]=i_peak[i];
}
painter.end();
bitBlt(this, 0, 0, buffer);
}
void VUMeter::setPeak(int a[]) {
int i;
// qDebug("set peak int");
// cerr<<"setting peak\n";
for(i=0;i<tracks+2;i++) {
if (a[i] > i_peak[i]) i_peak[i]= a[i];
if (a[i] > i_hold[i]) {i_hold[i]=a[i]; holdTime[i]=para.hold;}
}
paint();
}
void VUMeter::setPeak(float a[]) {
int i;
// owarn <<"set peak float"<< a[0]<< oendl;
for(i=0;i<tracks+2;i++) {
if (a[i] > peak[i]) peak[i]= a[i];
if (a[i] > hold[i]) {hold[i]= a[i]; holdTime[i]=para.hold;}
}
paint();
}
void VUMeter::startTimer() {
vuTimer->start(para.update, FALSE);
}
void VUMeter::stopTimer() {
vuTimer->stop();
}
void VUMeter::readConf() {
// Config config("QtRec");
// config->setGroup("VU-Meter");
// para.onOff=config->readBoolEntry("OnOff", true ) ;
// para.update=config->readNumEntry("Update", 50 );
// para.hold=config->readNumEntry("Hold", 20 );
// para.reso=config->readNumEntry("Resolution", 3 );
// para.leds=config->readNumEntry("LEDs", 16 );
// para.resoFactor=pow(2,para.reso/6.0);
// update();
// dia->updatePara();
}
void VUMeter::writeConf() {
// Config config("QtRec");
// config->setGroup("VU-Meter");
// config->writeEntry("OnOff" ,para.onOff );
// config->writeEntry("Update" ,para.update );
// config->writeEntry("Hold" ,para.hold );
// config->writeEntry("Resolution" , para.reso );
// config->writeEntry("LEDs" , para.leds);
}
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