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