add vumeter files

2 files changed, 346 insertions, 0 deletions

diff --git a/noncore/multimedia/opierec/vumeter.cpp b/noncore/multimedia/opierec/vumeter.cpp
new file mode 100644
index 0000000..8bab2f2
--- a/dev/null
+++ b/noncore/multimedia/opierec/vumeter.cpp
@@ -0,0 +1,280 @@
+#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(&para);
+//      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);
+
+}
diff --git a/noncore/multimedia/opierec/vumeter.h b/noncore/multimedia/opierec/vumeter.h
new file mode 100644
index 0000000..e167686
--- a/dev/null
+++ b/noncore/multimedia/opierec/vumeter.h
@@ -0,0 +1,66 @@
+#ifndef VUMETER_H
+#define VUMETER_H
+
+#include "qtrec.h"
+#include <qpainter.h>
+#include <qpixmap.h>
+#include <qpushbutton.h>
+
+typedef struct {
+	bool onOff;
+	int hold,update,leds,reso;
+	float resoFactor;
+} VUParameters;
+
+class VUMeter: public QWidget
+{
+  Q_OBJECT
+
+public:
+  VUMeter(QWidget *parent=0, const char *name=0, const int tracks=2);
+  ~VUMeter();
+	VUParameters para;
+  QTimer *vuTimer;
+  void startTimer();
+  void stopTimer();
+public slots:
+  void setTracks(int trk) {tracks=trk;};
+  void setPeak(int a[]);
+  void setPeak(float a[]);
+  void timeSlot();
+  void slotOn();
+  void slotOff();
+  void update();
+  void slotProps();
+  void resize();
+  void readConf();
+  void writeConf();
+
+signals:
+  void statusChanged(const char *);
+
+protected:
+
+  virtual void paintEvent(QPaintEvent*);
+  virtual void resizeEvent(QResizeEvent*);
+  virtual void mousePressEvent(QMouseEvent*);
+  void paint();
+private:
+		//bool status;
+  int tracks;
+//  VUPara para;    //  dialogs.h
+  float resoFactor;
+  int x,y,sx,sy,dx,dy,ox,oy;
+  float peak[4], hold[4];
+  int i_peak[4], i_hold[4];
+  int holdTime[4];
+
+    // VUMeterDialog *dia;
+  QPixmap *buffer, *warning; /// ?
+  QPopupMenu *vuProp;
+  QColor color[37];
+
+};
+
+
+#endif