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e30e5583d3
git-svn-id: https://lmms.svn.sf.net/svnroot/lmms/trunk/lmms@408 0778d3d1-df1d-0410-868b-ea421aaaa00d
396 lines
8.0 KiB
C++
396 lines
8.0 KiB
C++
/*
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* ladspa_control.cpp - widget for controlling a LADSPA port
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*
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* Copyright (c) 2006 Danny McRae <khjklujn/at/users.sourceforge.net>
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*
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* This file is part of Linux MultiMedia Studio - http://lmms.sourceforge.net
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public
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* License along with this program (see COPYING); if not, write to the
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* Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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* Boston, MA 02110-1301 USA.
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*
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*/
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#include "qt3support.h"
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#ifdef QT4
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#include <QtGui/QWhatsThis>
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#else
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#include <qwhatsthis.h>
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#endif
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#include "ladspa_control.h"
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#include "ladspa_base.h"
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#include "tooltip.h"
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#include "tempo_sync_knob.h"
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ladspaControl::ladspaControl( QWidget * _parent,
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port_desc_t * _port,
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engine * _engine,
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track * _track,
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bool _link) :
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QWidget( _parent
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#ifdef QT3
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, "ladspaControl"
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#endif
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),
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journallingObject( _engine ),
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m_port( _port ),
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m_track( _track ),
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m_link( NULL ),
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m_toggle( NULL ),
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m_knob( NULL )
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{
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m_layout = new QHBoxLayout( this
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#ifdef QT3
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, 0, 0, "ladspaControlLayout"
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#endif
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);
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if( _link )
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{
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m_link = new ledCheckBox( "", this, "", eng(), m_track );
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m_link->setChecked( FALSE );
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connect( m_link, SIGNAL( toggled( bool ) ),
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this, SLOT( portLink( bool ) ) );
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m_layout->addWidget( m_link );
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toolTip::add( m_link, tr( "Link channels" ) );
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}
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switch( m_port->data_type )
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{
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case TOGGLED:
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m_toggle = new ledCheckBox( m_port->name, this, "",
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eng(), m_track,
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ledCheckBox::GREEN );
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connect( m_toggle, SIGNAL( toggled( bool ) ),
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this, SLOT( ledChange( bool ) ) );
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setFixedSize( m_toggle->width(), m_toggle->height() );
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if( m_port->def == 1.0f )
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{
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m_toggle->setChecked( TRUE );
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}
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if( _link )
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{
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m_layout->addWidget( m_toggle );
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setFixedSize( m_link->width() +
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m_toggle->width(),
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m_toggle->height() );
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}
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break;
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case INTEGER:
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m_knob = new knob( knobBright_26, this,
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m_port->name, eng(), m_track);
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connect( m_knob, SIGNAL( valueChanged( float ) ),
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this, SLOT( knobChange( float ) ) );
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m_knob->setLabel( m_port->name );
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m_knob->setRange( static_cast<int>( m_port->max ),
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static_cast<int>( m_port->min ),
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1 + static_cast<int>( m_port->max -
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m_port->min ) / 400 );
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m_knob->setInitValue(
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static_cast<int>( m_port->def ) );
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setFixedSize( m_knob->width(), m_knob->height() );
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m_knob->setHintText( tr( "Value:" ) + " ", "" );
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#ifdef QT4
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m_knob->setWhatsThis(
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#else
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QWhatsThis::add( m_knob,
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#endif
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tr( "Sorry, no help available." ) );
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if( _link )
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{
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m_layout->addWidget( m_knob );
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setFixedSize( m_link->width() +
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m_knob->width(),
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m_knob->height() );
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}
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break;
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case FLOAT:
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m_knob = new knob( knobBright_26, this,
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m_port->name, eng(), m_track);
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connect( m_knob, SIGNAL( valueChanged( float ) ),
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this, SLOT( knobChange( float ) ) );
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m_knob->setLabel( m_port->name );
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m_knob->setRange( m_port->min, m_port->max,
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( m_port->max -
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m_port->min ) / 400.0f );
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m_knob->setInitValue( m_port->def );
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m_knob->setHintText( tr( "Value:" ) + " ", "" );
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#ifdef QT4
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m_knob->setWhatsThis(
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#else
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QWhatsThis::add( m_knob,
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#endif
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tr( "Sorry, no help available." ) );
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setFixedSize( m_knob->width(), m_knob->height() );
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if( _link )
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{
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m_layout->addWidget( m_knob );
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setFixedSize( m_link->width() +
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m_knob->width(),
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m_knob->height() );
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}
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break;
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case TIME:
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m_knob = new tempoSyncKnob( knobBright_26, this,
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m_port->name, eng(), m_track);
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connect( m_knob, SIGNAL( valueChanged( float ) ),
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this, SLOT( knobChange( float ) ) );
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m_knob->setLabel( m_port->name );
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m_knob->setRange( m_port->min, m_port->max,
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( m_port->max -
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m_port->min ) / 400.0f );
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m_knob->setInitValue( m_port->def );
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m_knob->setHintText( tr( "Value:" ) + " ", "" );
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#ifdef QT4
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m_knob->setWhatsThis(
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#else
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QWhatsThis::add( m_knob,
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#endif
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tr( "Sorry, no help available." ) );
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setFixedSize( m_knob->width(), m_knob->height() );
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if( _link )
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{
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m_layout->addWidget( m_knob );
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setFixedSize( m_link->width() +
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m_knob->width(),
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m_knob->height() );
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}
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break;
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default:
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break;
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}
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}
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ladspaControl::~ladspaControl()
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{
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}
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LADSPA_Data ladspaControl::getValue( void )
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{
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LADSPA_Data value = 0.0f;
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if( m_processLock.tryLock() )
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{
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switch( m_port->data_type )
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{
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case TOGGLED:
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value = static_cast<LADSPA_Data>(
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m_toggle->isChecked() );
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break;
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case INTEGER:
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case FLOAT:
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case TIME:
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value = static_cast<LADSPA_Data>(
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m_knob->value() );
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break;
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default:
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printf(
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"ladspaControl::getValue BAD BAD BAD\n" );
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break;
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}
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m_processLock.unlock();
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}
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return( value );
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}
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void ladspaControl::setValue( LADSPA_Data _value )
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{
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m_processLock.lock();
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switch( m_port->data_type )
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{
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case TOGGLED:
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m_toggle->setChecked( static_cast<bool>( _value ) );
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break;
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case INTEGER:
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m_knob->setValue( static_cast<int>( _value ) );
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break;
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case FLOAT:
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case TIME:
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m_knob->setValue( static_cast<float>( _value ) );
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break;
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default:
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printf("ladspaControl::setValue BAD BAD BAD\n");
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break;
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}
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m_processLock.unlock();
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}
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void FASTCALL ladspaControl::saveSettings( QDomDocument & _doc,
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QDomElement & _this,
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const QString & _name )
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{
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m_processLock.lock();
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if( m_link != NULL )
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{
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m_link->saveSettings( _doc, _this, _name + "link" );
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}
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switch( m_port->data_type )
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{
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case TOGGLED:
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m_toggle->saveSettings( _doc, _this, _name );
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break;
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case INTEGER:
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case FLOAT:
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case TIME:
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m_knob->saveSettings( _doc, _this, _name );
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break;
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default:
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printf("ladspaControl::saveSettings BAD BAD BAD\n");
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break;
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}
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m_processLock.unlock();
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}
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void FASTCALL ladspaControl::loadSettings( const QDomElement & _this,
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const QString & _name )
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{
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m_processLock.lock();
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if( m_link != NULL )
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{
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m_link->loadSettings( _this, _name + "link" );
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}
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switch( m_port->data_type )
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{
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case TOGGLED:
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m_toggle->loadSettings( _this, _name );
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break;
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case INTEGER:
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case FLOAT:
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case TIME:
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m_knob->loadSettings( _this, _name );
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break;
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default:
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printf("ladspaControl::loadSettings BAD BAD BAD\n");
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break;
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}
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m_processLock.unlock();
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}
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void FASTCALL ladspaControl::linkControls( ladspaControl * _control )
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{
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m_processLock.lock();
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switch( m_port->data_type )
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{
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case TOGGLED:
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ledCheckBox::linkObjects( m_toggle, _control->getToggle() );
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break;
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case INTEGER:
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case FLOAT:
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case TIME:
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knob::linkObjects( m_knob, _control->getKnob() );
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break;
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default:
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break;
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}
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m_processLock.unlock();
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}
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void ladspaControl::ledChange( bool _state )
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{
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emit( changed( m_port->port_id, static_cast<LADSPA_Data>( _state ) ) );
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}
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void ladspaControl::knobChange( float _value )
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{
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emit( changed( m_port->port_id, static_cast<LADSPA_Data>( _value ) ) );
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}
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void FASTCALL ladspaControl::unlinkControls( ladspaControl * _control )
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{
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m_processLock.lock();
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switch( m_port->data_type )
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{
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case TOGGLED:
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ledCheckBox::unlinkObjects( m_toggle, _control->getToggle() );
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break;
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case INTEGER:
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case FLOAT:
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case TIME:
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knob::unlinkObjects( m_knob, _control->getKnob() );
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break;
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default:
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break;
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}
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m_processLock.unlock();
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}
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void ladspaControl::portLink( bool _state )
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{
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emit( linkChanged( m_port->control_id, _state ) );
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}
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void FASTCALL ladspaControl::setLink( bool _state )
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{
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if( m_link != NULL )
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{
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m_link->setChecked( _state );
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}
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}
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#include "ladspa_control.moc"
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