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author | toma <toma@283d02a7-25f6-0310-bc7c-ecb5cbfe19da> | 2009-11-25 17:56:58 +0000 |
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committer | toma <toma@283d02a7-25f6-0310-bc7c-ecb5cbfe19da> | 2009-11-25 17:56:58 +0000 |
commit | e2de64d6f1beb9e492daf5b886e19933c1fa41dd (patch) | |
tree | 9047cf9e6b5c43878d5bf82660adae77ceee097a /arts/gui/kde/kvolumefader_impl.cpp | |
download | tdemultimedia-e2de64d6f1beb9e492daf5b886e19933c1fa41dd.tar.gz tdemultimedia-e2de64d6f1beb9e492daf5b886e19933c1fa41dd.zip |
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
Diffstat (limited to 'arts/gui/kde/kvolumefader_impl.cpp')
-rw-r--r-- | arts/gui/kde/kvolumefader_impl.cpp | 243 |
1 files changed, 243 insertions, 0 deletions
diff --git a/arts/gui/kde/kvolumefader_impl.cpp b/arts/gui/kde/kvolumefader_impl.cpp new file mode 100644 index 00000000..f3d09a0b --- /dev/null +++ b/arts/gui/kde/kvolumefader_impl.cpp @@ -0,0 +1,243 @@ +/* + 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., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. + +*/ + +#include "kvolumefader_impl.h" + +#include <kdebug.h> +#include <qpainter.h> +#include <qstyle.h> +#include <qfont.h> +#include <qfontmetrics.h> +#include <kglobalsettings.h> +#include <klocale.h> +#include <kpopupmenu.h> +#include <kaction.h> +#include <kinputdialog.h> + +KVolumeFader_impl::KVolumeFader_impl( QFrame* w ) + : Arts::KFrame_impl( w ? w : new KVolumeFader_Widget( 0 ) ) + , dB2VolCalc( -36, 6 ) + , _dir( Arts::BottomToTop ) + , dbmin_inupdate( false ) + , dbmax_inupdate( false ) + , direction_inupdate( false ) + , ignoreUpdates( 0 ) +{ + //kdDebug()<<"KVolumeFader_impl::KVolumeFader_impl( QFrame* w="<<w<<" )"<<endl; + _vfwidget = static_cast<KVolumeFader_Widget*>( _qwidget ); + _vfwidget->setImpl( this ); +} + +KVolumeFader_impl::~KVolumeFader_impl() { +} + +float KVolumeFader_impl::dbmin() { return dB2VolCalc::dbmin; } +void KVolumeFader_impl::dbmin( float n ) { + if ( n != dB2VolCalc::dbmin && !dbmin_inupdate ) { + dbmin_inupdate = true; + dB2VolCalc::dbmin = n; + dbmin_changed( dbmin() ); + dbmin_inupdate = false; + } +} +float KVolumeFader_impl::dbmax() { return dB2VolCalc::dbmax; } +void KVolumeFader_impl::dbmax( float n ) { + if ( n != dB2VolCalc::dbmax && !dbmax_inupdate ) { + dbmax_inupdate = true; + dB2VolCalc::dbmax = n; + dbmax_changed( dbmax() ); + dbmax_inupdate = false; + } +} + +Arts::Direction KVolumeFader_impl::direction() { return _dir; } +void KVolumeFader_impl::direction( Arts::Direction n ) { + if ( n != _dir && !direction_inupdate ) { + direction_inupdate = true; + _dir = n; + _vfwidget->setDirection( _dir ); +// direction_changed( direction() ); + direction_inupdate = false; + } +} + +float KVolumeFader_impl::volume() { return _volume; } +void KVolumeFader_impl::volume( float n ) { + //kdDebug() << k_funcinfo << n << " ignore: " << ignoreUpdates << endl; + if ( ignoreUpdates > 0 ) { + --ignoreUpdates; + return; + } + _volume = n; + _vfwidget->setValue( amptondb( _volume ) ); +} + +float KVolumeFader_impl::dbvolume() { return amptodb( _volume ); } +void KVolumeFader_impl::dbvolume( float n ) { + //kdDebug() << k_funcinfo << n << endl; + normalizedvolume( dbtondb( n ) ); +} + +void KVolumeFader_impl::normalizedvolume( float n ) { + if ( ( ndbtodb( n ) > dbmin() ) && ( ndbtodb( n ) < dbmax() ) ) { + float amp = ndbtoamp( n ); + if ( amp != _volume ) { + ++ignoreUpdates; + //kdDebug() << k_funcinfo << ignoreUpdates << endl; + _volume = amp; + _vfwidget->setValue( n ); + volume_changed( _volume ); + } + } +} + +void KVolumeFader_impl::constructor( float dbmin, float dbmax, Arts::Direction dir ) { + this->dbmin( dbmin ); this->dbmax( dbmax ); direction( dir ); +} + + + +KVolumeFader_Widget::KVolumeFader_Widget( QWidget* p, const char* n ) + : QFrame( p,n ) + , _impl( 0 ) + , _inupdate( false ) + , _value( -1 ) + , _dir( Arts::BottomToTop ) + , _menu( new KPopupMenu( this ) ) + , _aExactValue( new KAction( i18n( "Set Exact Value..." ), KShortcut(), this, SLOT( exactValue() ), this ) ) +{ + //kdDebug() << k_funcinfo << endl; + setMinimumSize( 10,10 ); + _aExactValue->plug( _menu ); +} + +void KVolumeFader_Widget::setImpl( KVolumeFader_impl* n ) { _impl = n; update(); } + +KVolumeFader_Widget::~KVolumeFader_Widget() { + //kdDebug() << k_funcinfo << endl; +} + +void KVolumeFader_Widget::setDirection( Arts::Direction n ) { _dir = n; update(); } + +void KVolumeFader_Widget::setValue( float n ) { + //kdDebug() << k_funcinfo << n << endl; + if ( n != _value ) { + _value = n; + update(); + } +} + +QColor KVolumeFader_Widget::interpolate( QColor low, QColor high, float percent ) { + if ( percent<=0 ) return low; else + if ( percent>=1 ) return high; else + return QColor( + int( low.red() + ( high.red()-low.red() ) * percent ), + int( low.green() + ( high.green()-low.green() ) * percent ), + int( low.blue() + ( high.blue()-low.blue() ) * percent ) ); +} + +void KVolumeFader_Widget::drawContents( QPainter* p ){ + if ( _dir==Arts::BottomToTop || _dir==Arts::BottomToTop ) { + float h; + if ( _dir==Arts::BottomToTop ) h = contentsRect().height() * ( 1 - _value ); + else h = contentsRect().height() * _value; + for ( int i=int( h ); i<contentsRect().height(); i++ ) { + p->setPen( interpolate( colorGroup().light(), colorGroup().highlight(), float( i )/contentsRect().height() ) ); + p->drawLine( contentsRect().left(), this->frameWidth() + i, contentsRect().right(), this->frameWidth() + i ); + } + p->setPen( colorGroup().dark() ); + p->drawLine( contentsRect().left(), this->frameWidth() + int( h ), contentsRect().right(), this->frameWidth() + int( h ) ); + } else { + float w; + p->translate( this->width(),0 ); + if ( _dir==Arts::LeftToRight ) w = - contentsRect().width() * ( 1 - _value ); + else w = - contentsRect().width() * _value; + for ( int i=int( w ); i>=-contentsRect().width(); i-- ) { + p->setPen( interpolate( colorGroup().light(), colorGroup().highlight(), float( -i )/contentsRect().width() ) ); + p->drawLine( this->frameWidth() + i, contentsRect().top(), this->frameWidth() + i, contentsRect().bottom() ); + } + p->setPen( colorGroup().dark() ); + p->drawLine( this->frameWidth() + int( w ), contentsRect().top(), this->frameWidth() + int( w ), contentsRect().bottom() ); + } +} + +void KVolumeFader_Widget::mousePressEvent( QMouseEvent* ){ + //kdDebug() << k_funcinfo << endl; +} + +void KVolumeFader_Widget::mouseReleaseEvent( QMouseEvent* qme ){ + bool setValue = false; + if ( KGlobalSettings::mouseSettings().handed == 0 && qme->button() == Qt::LeftButton ) setValue=true; + if ( KGlobalSettings::mouseSettings().handed == 1 && qme->button() == Qt::RightButton ) setValue=true; + if ( setValue ) + { + switch ( _dir ) { + default: + case Arts::BottomToTop: + if ( _impl ) _impl->normalizedvolume( 1 - float( qme->y() ) / contentsRect().height() ); + break; + case Arts::TopToBottom: + if ( _impl ) _impl->normalizedvolume( float( qme->y() ) / contentsRect().height() ); + break; + case Arts::LeftToRight: + if ( _impl ) _impl->normalizedvolume( float( qme->x() ) / contentsRect().width() ); + break; + case Arts::RightToLeft: + if ( _impl ) _impl->normalizedvolume( 1 - float( qme->x() ) / contentsRect().width() ); + break; + } + } else _menu->exec( qme->globalPos() ); +} + +void KVolumeFader_Widget::mouseMoveEvent( QMouseEvent* qme ){ + switch ( _dir ) { + default: + case Arts::BottomToTop: + if ( _impl ) _impl->normalizedvolume( 1 - float( qme->y() ) / contentsRect().height() ); + break; + case Arts::TopToBottom: + if ( _impl ) _impl->normalizedvolume( float( qme->y() ) / contentsRect().height() ); + break; + case Arts::LeftToRight: + if ( _impl ) _impl->normalizedvolume( float( qme->x() ) / contentsRect().width() ); + break; + case Arts::RightToLeft: + if ( _impl ) _impl->normalizedvolume( 1 - float( qme->x() ) / contentsRect().width() ); + break; + } +} + +void KVolumeFader_Widget::wheelEvent( QWheelEvent* qwe ){ + //kdDebug() << k_funcinfo << endl; + if ( qwe->delta() < 0 ) { if ( _impl ) _impl->normalizedvolume( _impl->dbtondb( _impl->dbvolume() - 1 ) ); } + if ( qwe->delta() > 0 ) { if ( _impl ) _impl->normalizedvolume( _impl->dbtondb( _impl->dbvolume() + 1 ) ); } +} + +void KVolumeFader_Widget::exactValue() { + //kdDebug() << k_funcinfo << endl; + bool ok=false; + double n = KInputDialog::getDouble( i18n( "Set Exact Volume Value" ), i18n( "Exact volume (dB):" ), _impl->dbvolume(), _impl->dbmin(), _impl->dbmax(), 1, &ok, this ); + if ( ok ) _impl->dbvolume( n ); +} + +REGISTER_IMPLEMENTATION( KVolumeFader_impl ); + +#include "kvolumefader_impl.moc" +// vim: sw=4 ts=4 |