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130 lines
3.8 KiB
130 lines
3.8 KiB
/***************************************************************************
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kjequalizer.cpp - links noatun VEqualizer and KJofol
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--------------------------------------
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Maintainer: Stefan Gehn <sgehn@gmx.net>
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***************************************************************************/
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#include "kjequalizer.h"
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#include "kjequalizer.moc"
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#include <tqpainter.h>
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#include <tqtimer.h>
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#include <kdebug.h>
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#include <kpixmap.h>
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#include <noatun/vequalizer.h>
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KJEqualizer::KJEqualizer(const TQStringList &l, KJLoader *p)
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: TQObject(0), KJWidget(p), mBack(0), mView(0), mInterpEq(0)
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{
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int x=l[1].toInt();
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int y=l[2].toInt();
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int xs=l[3].toInt()-x;
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int ys=l[4].toInt()-y;
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setRect(x,y,xs,ys);
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mBars = p->pixmap(parser()["equalizerbmp"][3]);
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mBands = l[6].toInt();
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mXSpace = l[7].toInt();
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// background under equalizer
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// needed to only blit onto screen ONCE and not for every band
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TQPixmap tmp = p->pixmap(p->item("backgroundimage")[1]);
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mBack = new KPixmap ( TQSize(xs,ys) );
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bitBlt( mBack, 0, 0, &tmp, x, y, xs, ys, Qt::CopyROP );
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// buffer for view
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mView = new TQPixmap ( xs, ys );
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mBandWidth=parser()["EqualizerBmp"][1].toInt();
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mBandHalfHeight=parser()["EqualizerBmp"][2].toInt();
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kdDebug(66666) << "[KJEqualizer] mBands=" << mBands << ", mXSpace=" << mXSpace << ", mBandWidth=" << mBandWidth << ", mBandHalfHeight=" << mBandHalfHeight << "." << endl;
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kdDebug(66666) << "[KJEqualizer] creating VInterpolation for " << mBands << " bands..." << endl;
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mInterpEq = new VInterpolation(mBands);
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// napp->vequalizer()->setBands(mBands); // FIXME: hack because spline sucks :P
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connect(napp->vequalizer(), TQT_SIGNAL(changed()), this, TQT_SLOT(slotUpdateBuffer()));
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slotUpdateBuffer(); // fill mView pixmap with valid data
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}
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KJEqualizer::~KJEqualizer(void)
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{
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delete mInterpEq;
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delete mView;
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delete mBack;
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}
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int KJEqualizer::barNum(const TQPoint &pos) const
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{
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int x = pos.x();
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x = x / mXSpace;
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return mInterpEq->bands() * x / mBands;
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}
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int KJEqualizer::level(const TQPoint &pos) const
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{
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int y = ((-pos.y()) + mBandHalfHeight+1) * (200/mBandHalfHeight);
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return y;
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}
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void KJEqualizer::paint(TQPainter *p, const TQRect &)
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{
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TQPixmap temp(rect().width(), rect().height());
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// draw background into buffer
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bitBlt ( &temp, 0, 0, mBack, 0, 0, -1, -1, Qt::CopyROP );
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// draw band sliders into buffer
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bitBlt( &temp, 0, 0, mView, 0, 0, rect().width(), rect().height(), Qt::CopyROP);
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// and draw it on screen
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bitBlt(p->device(), rect().topLeft(), &temp, TQRect(0,0,-1,-1), Qt::CopyROP);
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}
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void KJEqualizer::slotUpdateBuffer()
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{
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// kdDebug(66666) << "[KJEqualizer] slotUpdateBuffer() called." << endl;
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TQBitmap regionMask( rect().width(), rect().height(), true); // fully transparent mask
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TQPainter mask( ®ionMask );
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TQPoint destX = TQPoint(0, 0);
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for (int band=0; band<mBands; band++)
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{
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int level = mInterpEq->level(band);
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if (level>200) level=200;
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if (level<-200) level=-200;
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int picNum = ((int)(level+200)*(mBandHalfHeight-1) / 400) + 1;
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int xPos = (picNum * mBandWidth) - mBandWidth;
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// kdDebug(66666) << "[KJEqualizer] band=" << band << ", level=" << level << ", picNum=" << picNum << " @ xpos=" << xPos << "." << endl;
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bitBlt(mView, destX, &mBars, TQRect(xPos,0,mBandWidth,rect().height()), Qt::CopyROP);
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// make slider opaque in mask so you see something on screen
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mask.fillRect ( destX.x(), 0, mBandWidth, rect().height(), Qt::color1 );
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destX += TQPoint(mXSpace,0);
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} // for()
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// whole thingy has been drawn, now set the mask
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mView->setMask( regionMask );
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repaint();
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}
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void KJEqualizer::mouseMove(const TQPoint &p, bool in)
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{
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if (!in) return;
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mousePress(p);
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}
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bool KJEqualizer::mousePress(const TQPoint &p)
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{
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kdDebug(66666) << "[KJEqualizer] setting band " << mBands << "/" << barNum(p)+1 << " to level " << level(p) << endl;
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VBand b = mInterpEq->band( barNum(p) );
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b.setLevel( level(p) );
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// mouseMove(p, true);
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return true;
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}
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