From e2de64d6f1beb9e492daf5b886e19933c1fa41dd Mon Sep 17 00:00:00 2001
From: toma <toma@283d02a7-25f6-0310-bc7c-ecb5cbfe19da>
Date: Wed, 25 Nov 2009 17:56:58 +0000
Subject: Copy the KDE 3.5 branch to branches/trinity for new KDE 3.5 features.
 BUG:215923

git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/kdemultimedia@1054174 283d02a7-25f6-0310-bc7c-ecb5cbfe19da
---
 noatun/modules/kjofol-skin/kjequalizer.cpp | 129 +++++++++++++++++++++++++++++
 1 file changed, 129 insertions(+)
 create mode 100644 noatun/modules/kjofol-skin/kjequalizer.cpp

(limited to 'noatun/modules/kjofol-skin/kjequalizer.cpp')

diff --git a/noatun/modules/kjofol-skin/kjequalizer.cpp b/noatun/modules/kjofol-skin/kjequalizer.cpp
new file mode 100644
index 00000000..3f0716e4
--- /dev/null
+++ b/noatun/modules/kjofol-skin/kjequalizer.cpp
@@ -0,0 +1,129 @@
+/***************************************************************************
+	kjequalizer.cpp  -  links noatun VEqualizer and KJofol
+	--------------------------------------
+	Maintainer: Stefan Gehn <sgehn@gmx.net>
+
+ ***************************************************************************/
+
+#include "kjequalizer.h"
+#include "kjequalizer.moc"
+
+#include <qpainter.h>
+#include <qtimer.h>
+
+#include <kdebug.h>
+#include <kpixmap.h>
+
+#include <noatun/vequalizer.h>
+
+KJEqualizer::KJEqualizer(const QStringList &l, KJLoader *p)
+	: QObject(0), KJWidget(p), mBack(0), mView(0), mInterpEq(0)
+{
+	int x=l[1].toInt();
+	int y=l[2].toInt();
+	int xs=l[3].toInt()-x;
+	int ys=l[4].toInt()-y;
+	setRect(x,y,xs,ys);
+
+	mBars = p->pixmap(parser()["equalizerbmp"][3]);
+
+	mBands = l[6].toInt();
+	mXSpace = l[7].toInt();
+
+	// background under equalizer
+	// needed to only blit onto screen ONCE and not for every band
+	QPixmap tmp = p->pixmap(p->item("backgroundimage")[1]);
+	mBack = new KPixmap ( QSize(xs,ys) );
+	bitBlt( mBack, 0, 0, &tmp, x, y, xs, ys, Qt::CopyROP );
+
+	// buffer for view
+	mView = new QPixmap ( xs, ys );
+
+	mBandWidth=parser()["EqualizerBmp"][1].toInt();
+	mBandHalfHeight=parser()["EqualizerBmp"][2].toInt();
+	
+	kdDebug(66666) << "[KJEqualizer] mBands=" << mBands << ", mXSpace=" << mXSpace << ", mBandWidth=" << mBandWidth << ", mBandHalfHeight=" <<  mBandHalfHeight << "." << endl;
+
+	kdDebug(66666) << "[KJEqualizer] creating VInterpolation for " << mBands << " bands..." << endl;
+	mInterpEq = new VInterpolation(mBands);
+//	napp->vequalizer()->setBands(mBands); // FIXME: hack because spline sucks :P
+	connect(napp->vequalizer(), SIGNAL(changed()), this, SLOT(slotUpdateBuffer()));
+
+	slotUpdateBuffer(); // fill mView pixmap with valid data
+}
+
+KJEqualizer::~KJEqualizer(void)
+{
+	delete mInterpEq;
+	delete mView;
+	delete mBack;
+}
+
+int KJEqualizer::barNum(const QPoint &pos) const
+{
+	int x = pos.x();
+	x = x / mXSpace;
+	return mInterpEq->bands() * x / mBands;
+}
+
+int KJEqualizer::level(const QPoint &pos) const
+{
+	int y = ((-pos.y()) + mBandHalfHeight+1) * (200/mBandHalfHeight);
+	return y;
+}
+
+void KJEqualizer::paint(QPainter *p, const QRect &)
+{
+	QPixmap temp(rect().width(), rect().height());
+	// draw background into buffer
+	bitBlt ( &temp, 0, 0, mBack, 0, 0, -1, -1, Qt::CopyROP );
+	// draw band sliders into buffer
+	bitBlt( &temp, 0, 0, mView, 0, 0, rect().width(), rect().height(), Qt::CopyROP);
+	// and draw it on screen
+	bitBlt(p->device(), rect().topLeft(), &temp, QRect(0,0,-1,-1), Qt::CopyROP);
+}
+
+void KJEqualizer::slotUpdateBuffer()
+{
+//	kdDebug(66666) << "[KJEqualizer] slotUpdateBuffer() called." << endl;
+
+	QBitmap regionMask( rect().width(), rect().height(), true); // fully transparent mask
+	QPainter mask( &regionMask );
+
+	QPoint destX = QPoint(0, 0);
+
+	for (int band=0; band<mBands; band++)
+	{
+		int level = mInterpEq->level(band);
+		if (level>200) level=200;
+		if (level<-200) level=-200;
+		int picNum = ((int)(level+200)*(mBandHalfHeight-1) / 400) + 1;
+		int xPos = (picNum * mBandWidth) - mBandWidth;
+
+//		kdDebug(66666) << "[KJEqualizer] band=" << band << ", level=" << level << ", picNum=" << picNum << " @ xpos=" << xPos << "." << endl;
+
+		bitBlt(mView, destX, &mBars, QRect(xPos,0,mBandWidth,rect().height()), Qt::CopyROP);
+		// make slider opaque in mask so you see something on screen
+		mask.fillRect ( destX.x(), 0, mBandWidth, rect().height(), Qt::color1 );
+		destX += QPoint(mXSpace,0);
+
+	} // for()
+	// whole thingy has been drawn, now set the mask
+	mView->setMask( regionMask );
+	repaint();
+}
+
+void KJEqualizer::mouseMove(const QPoint &p, bool in)
+{
+	if (!in) return;
+	mousePress(p);
+}
+
+bool KJEqualizer::mousePress(const QPoint &p)
+{
+	kdDebug(66666) << "[KJEqualizer] setting band " << mBands << "/" << barNum(p)+1 << " to level " << level(p) << endl;
+	VBand b = mInterpEq->band( barNum(p) );
+	b.setLevel( level(p) );
+//	mouseMove(p, true);
+	return true;
+}
-- 
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