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/*
Copyright ( C ) 2003 Arnold Krille <arnold@arnoldarts.de>
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation;
version 2 of the License.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public License
along with this library; see the file COPYING.LIB. If not, write to
the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301, USA.
*/
#include "klevelmeter_linebars.h"
#include <kdebug.h>
#include <qpainter.h>
#include <qpixmap.h>
KLevelMeter_LineBars::KLevelMeter_LineBars( Arts::KLevelMeter_impl* impl, QWidget* parent, long substyle, long count, Arts::Direction dir, float _dbmin, float _dbmax ) : KLevelMeter_Template( impl, parent, substyle, count, dir, _dbmin, _dbmax )
, _value( 0.0 )
, _peak( 0.0 )
{
//kdDebug()<<"KLevelMeter_LineBars::KLevelMeter_LineBars( Arts::KLevelMeter_impl* "<<impl<<", QWidget* "<<parent<<", long "<<substyle<<", long "<<count<<", Arts::Direction "<<dir<<", float "<<_dbmin<<", float "<<_dbmax<<" )"<<endl;
this->setMinimumSize( 5, 5 );
this->substyle( substyle );
_stdcolors = colorGroup();
setBackgroundMode( Qt::NoBackground );
}
void KLevelMeter_LineBars::invalue( float n, float p ) {
_value = amptondb( n );
_peak = amptondb( p );
repaint();
}
void KLevelMeter_LineBars::substyle( long n ) {
//kdDebug() << k_funcinfo << n << endl;
_substyle = n;
}
long KLevelMeter_LineBars::substyle() { return _substyle; }
void KLevelMeter_LineBars::paintEvent( QPaintEvent* ) {
QPixmap pm( size() );
QPainter p( &pm );
switch ( _dir ) {
case Arts::BottomToTop:
break;
case Arts::TopToBottom:
p.rotate( 180.0 );
p.translate( -width() + 1, -height() + 1 );
break;
case Arts::LeftToRight:
p.rotate( 90.0 );
p.translate( 0, -width() + 1 );
break;
case Arts::RightToLeft:
p.rotate( 270.0 );
p.translate( -height() + 1, 0 );
break;
}
if ( _substyle & 1 )
p.setBrush( ( _peak<1 )?QColor( 0,0,255 ):QColor( 255,0,0 ) );
else
p.setBrush( ( _peak<1 )?color( _value ):QColor( 255,0,0 ) );
QColor bgcolor = ( _substyle & 2 ) ? p.brush().color().dark() : _stdcolors.background();
pm.fill( bgcolor );
p.setPen( NoPen );
QSize s = size();
if ( Arts::LeftToRight == _dir || Arts::RightToLeft == _dir )
s.transpose();
// Value
int h = int( s.height() * _value );
int top = s.height() - h;
int w = s.width();
p.drawRect( 0, top, w, h );
// PeakBar
if ( _peak > 1.0/1000 && _peak <= 1.0 ) {
p.setPen( QColor( 255-bgcolor.red(), 255-bgcolor.green(), 255-bgcolor.blue() ) );
top = int( s.height() * ( 1 - _peak ) );
p.drawLine( 0, top, w, top );
}
bitBlt( this, 0, 0, &pm, 0, 0, pm.width(), pm.height(), CopyROP, true );
}
/**
Planned feature: a little Tooltip showing the actual value of the volume in deziBel and perhaps as linear scaleFactor
*/
void KLevelMeter_LineBars::mouseMoveEvent( QMouseEvent* /*qme*/ ) {
//kdDebug()<<"KLevelMeter_LineBars::mouseMoveEvent(QMouseEvent* "<<qme<<" )"<<endl;
//kdDebug()<<"qme.y()="<<this->height()-qme->y()<<" db="<<db<<" dbtoamp(db)="<<dbtoamp( db )<<endl;
}
#include <klevelmeter_linebars.moc>
// vim: sw=4 ts=4
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