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#include "voiceprint.h"
#include <noatun/player.h>
#include <noatun/app.h>
#include <math.h>
#include <tqpainter.h>
#include "prefs.h"
#include <klocale.h>
#include <stdio.h>
extern "C"
{
KDE_EXPORT Plugin *create_plugin()
{
return new VoicePrint();
}
}
VoicePrint *VoicePrint::voicePrint=0;
VoicePrint::VoicePrint() : TQWidget(0,0,WRepaintNoErase), MonoFFTScope(50), Plugin()
{
voicePrint=this;
mOffset=0;
mSegmentWidth=2;
setCaption(i18n("Voiceprint"));
resize(320, 240);
MonoFFTScope::start();
show();
setMaximumHeight(1024);
}
VoicePrint::~VoicePrint()
{
}
void VoicePrint::init()
{
Prefs *p=new Prefs(this);
p->reopen();
p->save();
resizeEvent(0);
}
void VoicePrint::setColors(const TQColor &bg, const TQColor &fg, const TQColor &l)
{
mProgress=l;
mLowColor=bg.rgb();
mHighColor=fg.rgb();
setBackgroundColor(mLowColor);
}
void VoicePrint::closeEvent(TQCloseEvent *)
{
unload();
}
void VoicePrint::resizeEvent(TQResizeEvent *)
{
mOffset=0;
mBuffer.resize(size());
TQPainter paint(&mBuffer);
paint.fillRect(TQRect(0,0, TQWidget::width(), height()), TQColor(mLowColor));
setBands(magic(height()/mSegmentWidth));
}
#define COLOR(color, bgcolor, fgcolor, foctet) \
(int)( color(bgcolor) + (foctet) * (color(fgcolor) - color(bgcolor)) )
inline static QRgb averageByIntensity(QRgb bgcolor, QRgb fgcolor, int octet)
{
float foctet = octet / 255.0;
return qRgb(COLOR(qRed, bgcolor, fgcolor, foctet),
COLOR(qGreen, bgcolor, fgcolor, foctet),
COLOR(qBlue, bgcolor, fgcolor, foctet)
);
}
#undef COLOR
void VoicePrint::paintEvent(TQPaintEvent *e)
{
bitBlt(this, e->rect().topLeft(), &mBuffer, e->rect(), Qt::CopyROP);
}
void VoicePrint::scopeEvent(float *data, int bands)
{
// save cpu
if(isHidden()) return;
TQPainter paint(&mBuffer);
// each square has a width of mSegmentWidth
float brightness = float(bands * mSegmentWidth);
for (int i=0; i<bands ; i++)
{
float b=data[bands-i-1]+1.0;
// the more bands there are, the dimmer each becomes
b=log10(b)/log(2) * 16 * brightness;
int band=int(b);
if (band>255) band=255;
else if (band<0) band=0;
TQColor area(averageByIntensity(mLowColor, mHighColor, band));
int bandTop=i*height()/bands, bandBottom=(i+1)*height()/bands;
paint.fillRect(mOffset, bandTop, mSegmentWidth,bandBottom-bandTop,area);
}
int newOffset = mOffset+mSegmentWidth;
if (newOffset>TQWidget::width()) newOffset=0;
paint.fillRect(newOffset, 0, mSegmentWidth, height(), mProgress);
// redraw changes with the minimum amount of work
if(newOffset != 0)
{
repaint(mOffset,0,mSegmentWidth*2,height(),false);
}
else
{
repaint(mOffset,0,mSegmentWidth,height(),false);
repaint(newOffset,0,mSegmentWidth,height(),false);
}
mOffset = newOffset;
}
#include "voiceprint.moc"
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