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Viewing changes to noatun/noatun/modules/monoscope/monoscope.cpp

  • Committer: Bazaar Package Importer
  • Author(s): Martin Schulze
  • Date: 2003-01-22 15:00:51 UTC
  • Revision ID: james.westby@ubuntu.com-20030122150051-uihwkdoxf15mi1tn
Tags: upstream-2.2.2
Import upstream version 2.2.2

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noatun/noatun/modules/monoscope/monoscope.cpp
 
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#include "monoscope.h"
 
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#include <player.h>
 
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#include <noatunapp.h>
 
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#include <math.h>
 
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#include <qpainter.h>
 
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//#include "prefs.h"
 
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#include <klocale.h>
 
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extern "C"
 
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{
 
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        Plugin *create_plugin()
 
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        {
 
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                return new Monoscope();
 
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        }
 
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}
 
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Monoscope::Monoscope() : QWidget(0,0,WRepaintNoErase), MonoScope(50), Plugin()
 
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{
 
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        NOATUNPLUGINC(Monoscope);
 
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        mLowColor=qRgb(0,0,0);
 
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        mHighColor=qRgb(238,238,238);
 
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        resize(320, 240);
 
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        MonoScope::start();
 
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        setCaption(i18n("Monoscope"));
 
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        show();
 
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        resizeEvent(0);
 
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        repaint(0,0, QWidget::width(), height(), false);
 
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        resizeEvent(0);
 
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        setBackgroundColor(mLowColor);
 
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}
 
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Monoscope::~Monoscope()
 
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{
 
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        napp->pluginMenuRemove(pluginMenuItem);
 
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}
 
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void Monoscope::init()
 
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{
 
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        pluginMenuItem = napp->pluginMenuAdd(i18n("Toggle Monoscope"), this, SLOT(toggle(void)));
 
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}
 
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void Monoscope::toggle(void)
 
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{
 
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        if(isHidden())
 
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                show();
 
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        else
 
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                hide();
 
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}
 
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void Monoscope::closeEvent(QCloseEvent *)
 
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{
 
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        hide();
 
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}
 
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void Monoscope::resizeEvent(QResizeEvent *)
 
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{
 
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        setSamples(width());
 
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}
 
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void Monoscope::scopeEvent(float *d, int size)
 
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{
 
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        // save cpu
 
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        if(isHidden()) return;
 
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        const bool line=false;
 
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        int viewWidth =width();
 
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        int viewHeight=height();
 
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        float *end=d+size;
 
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        int x=0;
 
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        int heightHalf=viewHeight/4;
 
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        int y=viewHeight/2;
 
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        // reduce flicker
 
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        QPixmap buffer(viewWidth, viewHeight, -1, QPixmap::BestOptim);
 
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        buffer.fill(mLowColor);
 
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        QPainter p(&buffer);
 
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        p.setPen(mHighColor);
 
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        repaint(rect());
 
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        if (line)
 
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                p.moveTo(0, y);
 
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        while (d<=end)
 
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        {
 
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                float &n=*d;
 
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                n *= heightHalf;
 
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                int amp=(int)n;
 
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                if (line) // line
 
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                        p.lineTo(x, y+amp);
 
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                else // fill
 
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                        p.drawLine(x, y, x, y+amp);
 
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                d++;
 
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                x++;
 
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        }
 
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        if (line)
 
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                p.drawLine(0, y, size, y);
 
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        bitBlt(this, 0, 0, &buffer, 0, 0, viewWidth, viewHeight, Qt::CopyROP);
 
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}
 
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#include "monoscope.moc"
 
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