author | mickeyl <mickeyl> | 2004-04-04 13:54:40 (UTC) |
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committer | mickeyl <mickeyl> | 2004-04-04 13:54:40 (UTC) |
commit | 16cf79e90b5217f8d4bfce2a0fa817ae4b73db36 (patch) (side-by-side diff) | |
tree | 0701eae15aa606a0211a2fccfde0eafdac69357c /noncore/multimedia/opierec/waveform.cpp | |
parent | 8d2d2664e5f544b8292806e617deb7a0e4170dc0 (diff) | |
download | opie-16cf79e90b5217f8d4bfce2a0fa817ae4b73db36.zip opie-16cf79e90b5217f8d4bfce2a0fa817ae4b73db36.tar.gz opie-16cf79e90b5217f8d4bfce2a0fa817ae4b73db36.tar.bz2 |
convert to Opie Debugging Framework
Diffstat (limited to 'noncore/multimedia/opierec/waveform.cpp') (more/less context) (ignore whitespace changes)
-rw-r--r-- | noncore/multimedia/opierec/waveform.cpp | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/noncore/multimedia/opierec/waveform.cpp b/noncore/multimedia/opierec/waveform.cpp index 9cc40b4..7c9a25f 100644 --- a/noncore/multimedia/opierec/waveform.cpp +++ b/noncore/multimedia/opierec/waveform.cpp @@ -1,147 +1,151 @@ /********************************************************************** ** Copyright (C) 2000-2002 Trolltech AS. All rights reserved. ** ** This file is part of the Qtopia Environment. ** ** This file may be distributed and/or modified under the terms of the ** GNU General Public License version 2 as published by the Free Software ** Foundation and appearing in the file LICENSE.GPL included in the ** packaging of this file. ** ** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE ** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. ** ** See http://www.trolltech.com/gpl/ for GPL licensing information. ** ** Contact info@trolltech.com if any conditions of this licensing are ** not clear to you. ** **********************************************************************/ #include "waveform.h" -#include <qpainter.h> +/* OPIE */ +#include <opie2/odebug.h> +using namespace Opie::Core; +/* QT */ +#include <qpainter.h> Waveform::Waveform( QWidget *parent, const char *name, WFlags fl ) : QWidget( parent, name, fl ) { pixmap = 0; windowSize = 100; samplesPerPixel = 8000 / (5 * windowSize); currentValue = 0; numSamples = 0; windowPosn = 0; window = 0; } void Waveform::changeSettings( int frequency, int channels ) { makePixmap(); -// qWarning("change waveform %d, %d", frequency, channels); +// owarn << "change waveform " << frequency << ", " << channels << "" << oendl; samplesPerPixel = frequency * channels / (5 * windowSize); - qWarning("Waveform::changeSettings %d", samplesPerPixel); + owarn << "Waveform::changeSettings " << samplesPerPixel << "" << oendl; if ( !samplesPerPixel ) samplesPerPixel = 1; currentValue = 0; numSamples = 0; windowPosn = 0; draw(); } Waveform::~Waveform() { if ( window ) delete[] window; if ( pixmap ) delete pixmap; } void Waveform::reset() { makePixmap(); currentValue = 0; numSamples = 0; windowPosn = 0; draw(); } void Waveform::newSamples( const short *buf, int len ) { // Cache the object values in local variables. int samplesPerPixel = this->samplesPerPixel; int currentValue = this->currentValue; int numSamples = this->numSamples; short *window = this->window; int windowPosn = this->windowPosn; int windowSize = this->windowSize; // Average the incoming samples to scale them to the window. while ( len > 0 ) { currentValue += *buf++; --len; if ( ++numSamples >= samplesPerPixel ) { window[windowPosn++] = (short)(currentValue / numSamples); if ( windowPosn >= windowSize ) { this->windowPosn = windowPosn; draw(); windowPosn = 0; } numSamples = 0; currentValue = 0; } } // Copy the final state back to the object. -//qWarning("%d, %d, %d", currentValue, numSamples, windowPosn); +//owarn << "" << currentValue << ", " << numSamples << ", " << windowPosn << "" << oendl; this->currentValue = currentValue; this->numSamples = numSamples; this->windowPosn = windowPosn; } void Waveform::makePixmap() { if ( !pixmap ) { pixmap = new QPixmap( size() ); windowSize = pixmap->width(); window = new short [windowSize]; } } void Waveform::draw() { pixmap->fill( Qt::black ); QPainter painter; painter.begin( pixmap ); painter.setPen( Qt::green ); int middle = pixmap->height() / 2; int mag; short *window = this->window; int posn; int size = windowPosn; for( posn = 0; posn < size; ++posn ) { mag = (window[posn] * middle / 32768); painter.drawLine(posn, middle - mag, posn, middle + mag); } if ( windowPosn < windowSize ) { painter.drawLine(windowPosn, middle, windowSize, middle); } painter.end(); paintEvent( 0 ); } void Waveform::paintEvent( QPaintEvent * ) { QPainter painter; painter.begin( this ); |