renamed to effect_view.cpp to match model/view-convention
git-svn-id: https://lmms.svn.sf.net/svnroot/lmms/branches/lmms-mv@651 0778d3d1-df1d-0410-868b-ea421aaaa00d
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Tobias Doerffel committed
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#ifndef SINGLE_SOURCE_COMPILE
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/*
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* effect_tab_widget.cpp - tab-widget in channel-track-window for setting up
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* effects
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*
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* Copyright (c) 2006-2007 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 "rack_plugin.h"
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#include <QtGui/QLabel>
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#include <QtGui/QPushButton>
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#include <QtGui/QMdiArea>
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#include <QtGui/QMdiSubWindow>
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#include "audio_port.h"
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#include "caption_menu.h"
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#include "effect_control_dialog.h"
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#include "embed.h"
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#include "engine.h"
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#include "gui_templates.h"
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#include "knob.h"
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#include "led_checkbox.h"
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#include "main_window.h"
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#include "tempo_sync_knob.h"
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#include "tooltip.h"
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rackPlugin::rackPlugin( QWidget * _parent,
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effect * _eff,
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track * _track,
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audioPort * _port ) :
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QWidget( _parent ),
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m_autoQuitModel( 1.0f, 1.0f, 8000.0f, 100.0f /* this */ ),
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m_effect( _eff ),
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m_track( _track ),
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m_port( _port ),
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m_show( TRUE )
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{
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setFixedSize( 210, 60 );
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QPixmap bg = embed::getIconPixmap( "effect_plugin" );
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setAutoFillBackground( TRUE );
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QPalette pal;
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pal.setBrush( backgroundRole(), bg );
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setPalette( pal );
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m_effect->m_enabledModel.setTrack( m_track );
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m_effect->m_enabledModel.setValue( TRUE );
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m_bypass = new ledCheckBox( "", this, tr( "Turn the effect off" ) );
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m_bypass->setModel( &m_effect->m_enabledModel );
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m_bypass->move( 3, 3 );
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m_bypass->setWhatsThis( tr( "Toggles the effect on or off." ) );
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toolTip::add( m_bypass, tr( "On/Off" ) );
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m_effect->m_wetDryModel.setTrack( m_track );
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m_wetDry = new knob( knobBright_26, this, tr( "Wet/Dry mix" ) );
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m_wetDry->setModel( &m_effect->m_wetDryModel );
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m_wetDry->setLabel( tr( "W/D" ) );
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m_wetDry->move( 27, 5 );
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m_wetDry->setHintText( tr( "Wet Level:" ) + " ", "" );
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m_wetDry->setWhatsThis( tr( "The Wet/Dry knob sets the ratio between "
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"the input signal and the effect that "
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"shows up in the output." ) );
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m_autoQuitModel.setTrack( m_track );
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m_autoQuitModel.setInitValue( 1.0f );
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connect( &m_autoQuitModel, SIGNAL( dataChanged( void ) ),
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this, SLOT( updateAutoQuit( void ) ) );
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m_autoQuit = new tempoSyncKnob( knobBright_26, this, tr( "Decay" ) );
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m_autoQuit->setModel( &m_autoQuitModel );
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m_autoQuit->setLabel( tr( "Decay" ) );
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m_autoQuit->move( 60, 5 );
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m_autoQuit->setHintText( tr( "Time:" ) + " ", "ms" );
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m_autoQuit->setWhatsThis( tr(
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"The Decay knob controls how many buffers of silence must pass before the "
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"plugin stops processing. Smaller values will reduce the CPU overhead but "
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"run the risk of clipping the tail on delay effects." ) );
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m_effect->m_gateModel.setTrack( m_track );
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m_gate = new knob( knobBright_26, this, tr( "Gate" ) );
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m_gate->setModel( &m_effect->m_gateModel );
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m_gate->setLabel( tr( "Gate" ) );
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m_gate->move( 93, 5 );
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m_gate->setHintText( tr( "Gate:" ) + " ", "" );
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m_gate->setWhatsThis( tr(
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"The Gate knob controls the signal level that is considered to be 'silence' "
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"while deciding when to stop processing signals." ) );
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m_editButton = new QPushButton( tr( "Controls" ), this );
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QFont f = m_editButton->font();
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m_editButton->setFont( pointSize<7>( f ) );
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m_editButton->setGeometry( 140, 14, 50, 20 );
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connect( m_editButton, SIGNAL( clicked() ),
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this, SLOT( editControls() ) );
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m_label = new QLabel( this );
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m_label->setText( m_effect->publicName() );
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f = m_label->font();
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f.setBold( TRUE );
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m_label->setFont( pointSize<7>( f ) );
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m_label->setGeometry( 5, 44, 195, 10 );
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m_label->setAutoFillBackground( TRUE );
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pal.setBrush( backgroundRole(), QPixmap::fromImage(
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bg.toImage().copy( 5, 44, 195, 10 ) ) );
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m_label->setPalette( pal );
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m_controlView = m_effect->createControlDialog( m_track );
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m_subWindow = engine::getMainWindow()->workspace()->addSubWindow(
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m_controlView );
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connect( m_controlView, SIGNAL( closed() ),
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this, SLOT( closeEffects() ) );
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m_subWindow->hide();
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if( m_controlView->getControlCount() == 0 )
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{
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m_editButton->hide();
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}
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setWhatsThis( tr(
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"Effect plugins function as a chained series of effects where the signal will "
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"be processed from top to bottom.\n\n"
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"The On/Off switch allows you to bypass a given plugin at any point in "
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"time.\n\n"
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"The Wet/Dry knob controls the balance between the input signal and the "
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"effected signal that is the resulting output from the effect. The input "
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"for one stage is the output from the previous stage, so the 'dry' signal "
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"for effects lower in the chain contains all of the previous effects.\n\n"
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"The Decay knob controls how long the signal will continue to be processed "
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"after the notes have been released. The effect will stop processing signals "
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"when the signal has dropped below a given threshold for a given length of "
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"time. This knob sets the 'given length of time'. Longer times will require "
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"more CPU, so this number should be set low for most effects. It needs to be "
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"bumped up for effects that produce lengthy periods of silence, e.g. "
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"delays.\n\n"
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"The Gate knob controls the 'given threshold' for the effect's auto shutdown. "
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"The clock for the 'given length of time' will begin as soon as the processed "
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"signal level drops below the level specified with this knob.\n\n"
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"The Controls button opens a dialog for editing the effect's parameters.\n\n"
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"Right clicking will bring up a context menu where you can change the order "
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"in which the effects are processed or delete an effect altogether." ) );
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m_port->getEffects()->appendEffect( m_effect );
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}
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rackPlugin::~rackPlugin()
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{
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m_port->getEffects()->removeEffect( m_effect );
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delete m_effect;
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m_controlView->deleteLater();
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}
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void rackPlugin::editControls( void )
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{
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if( m_show )
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{
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m_subWindow->show();
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m_subWindow->raise();
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m_show = FALSE;
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}
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else
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{
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m_subWindow->hide();
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m_show = TRUE;
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}
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}
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void rackPlugin::updateAutoQuit( void )
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{
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float samples = engine::getMixer()->sampleRate() *
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m_autoQuitModel.value() / 1000.0f;
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Uint32 buffers = 1 + ( static_cast<Uint32>( samples ) /
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engine::getMixer()->framesPerPeriod() );
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m_effect->setTimeout( buffers );
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}
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void rackPlugin::contextMenuEvent( QContextMenuEvent * )
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{
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QPointer<captionMenu> contextMenu = new captionMenu(
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m_effect->publicName() );
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contextMenu->addAction( embed::getIconPixmap( "arp_up_on" ),
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tr( "Move &up" ),
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this, SLOT( moveUp() ) );
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contextMenu->addAction( embed::getIconPixmap( "arp_down_on" ),
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tr( "Move &down" ),
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this, SLOT( moveDown() ) );
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contextMenu->addSeparator();
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contextMenu->addAction( embed::getIconPixmap( "cancel" ),
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tr( "&Remove this plugin" ),
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this, SLOT( deletePlugin() ) );
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contextMenu->addSeparator();
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contextMenu->addAction( embed::getIconPixmap( "help" ),
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tr( "&Help" ),
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this, SLOT( displayHelp() ) );
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contextMenu->exec( QCursor::pos() );
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delete contextMenu;
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}
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void rackPlugin::moveUp()
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{
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emit( moveUp( this ) );
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}
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void rackPlugin::moveDown()
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{
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emit( moveDown( this ) );
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}
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void rackPlugin::deletePlugin()
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{
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emit( deletePlugin( this ) );
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}
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void rackPlugin::displayHelp( void )
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{
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QWhatsThis::showText( mapToGlobal( rect().bottomRight() ),
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whatsThis() );
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}
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void FASTCALL rackPlugin::saveSettings( QDomDocument & _doc,
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QDomElement & _this )
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{
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_this.setAttribute( "on", m_effect->m_enabledModel.value() );
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_this.setAttribute( "wet", m_effect->m_wetDryModel.value() );
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_this.setAttribute( "autoquit", m_autoQuitModel.value() );
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_this.setAttribute( "gate", m_effect->m_gateModel.value() );
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m_controlView->saveState( _doc, _this );
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}
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void FASTCALL rackPlugin::loadSettings( const QDomElement & _this )
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{
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m_effect->m_enabledModel.setValue( _this.attribute( "on" ).toInt() );
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m_effect->m_wetDryModel.setValue( _this.attribute( "wet" ).toFloat() );
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m_autoQuitModel.setValue( _this.attribute( "autoquit" ).toFloat() );
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m_effect->m_gateModel.setValue( _this.attribute( "gate" ).toFloat() );
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QDomNode node = _this.firstChild();
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while( !node.isNull() )
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{
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if( node.isElement() )
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{
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if( m_controlView->nodeName() == node.nodeName() )
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{
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m_controlView->restoreState(
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node.toElement() );
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}
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}
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node = node.nextSibling();
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}
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}
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void rackPlugin::closeEffects( void )
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{
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m_subWindow->hide();
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m_show = TRUE;
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}
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#include "rack_plugin.moc"
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#endif
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