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f01af6740e
git-svn-id: https://lmms.svn.sf.net/svnroot/lmms/trunk/lmms@574 0778d3d1-df1d-0410-868b-ea421aaaa00d
472 lines
11 KiB
C++
472 lines
11 KiB
C++
/*
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* impulse_editor.cpp - graphic waveform editor
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*
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* Copyright (c) 2006-2007 Danny McRae <khjklujn/at/yahoo/com>
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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 "impulse_editor.h"
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#include <Qt/QtXml>
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#include <QtCore/QMap>
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#include <QtCore/QPoint>
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#include <QtGui/QWhatsThis>
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#include "caption_menu.h"
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#include "embed.h"
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#include "engine.h"
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#include "oscillator.h"
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#include "song_editor.h"
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#include "tooltip.h"
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#include "vibed.h"
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impulseEditor::impulseEditor( QWidget * _parent, int _x, int _y, track * _track,
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Uint32 _len ) :
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QWidget( _parent ),
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m_sampleLength( _len ),
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m_normalizeFactor( 1.0f ),
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m_forward( TRUE )
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{
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setFixedSize( 153, 124 );
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m_base = QPixmap::grabWidget( _parent, _x, _y );
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setAutoFillBackground( TRUE );
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QPalette pal = palette();
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pal.setBrush( backgroundRole(), m_base );
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setPalette( pal );
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m_graph = new graph( this );
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m_graph->setForeground( PLUGIN_NAME::getIconPixmap( "wavegraph4" ) );
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m_graph->move( 0, 0 );
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m_graph->setCursor( QCursor( Qt::CrossCursor ) );
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toolTip::add( m_graph, tr ( "Draw your own waveform here "
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"by dragging your mouse onto this graph" ) );
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connect( m_graph, SIGNAL ( sampleChanged( void ) ),
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this, SLOT ( sampleChanged( void ) ) );
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m_sinWaveBtn = new pixmapButton( this, tr( "Sine wave" ), _track );
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m_sinWaveBtn->move( 136, 3 );
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m_sinWaveBtn->setActiveGraphic( embed::getIconPixmap(
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"sin_wave_active" ) );
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m_sinWaveBtn->setInactiveGraphic( embed::getIconPixmap(
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"sin_wave_inactive" ) );
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m_sinWaveBtn->setChecked( TRUE );
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toolTip::add( m_sinWaveBtn,
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tr( "Click here if you want a sine-wave for "
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"current oscillator." ) );
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connect( m_sinWaveBtn, SIGNAL (clicked ( void ) ),
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this, SLOT ( sinWaveClicked( void ) ) );
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m_triangleWaveBtn = new pixmapButton( this, tr( "Triangle wave" ),
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_track );
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m_triangleWaveBtn->move( 136, 20 );
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m_triangleWaveBtn->setActiveGraphic(
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embed::getIconPixmap( "triangle_wave_active" ) );
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m_triangleWaveBtn->setInactiveGraphic(
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embed::getIconPixmap( "triangle_wave_inactive" ) );
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toolTip::add( m_triangleWaveBtn,
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tr( "Click here if you want a triangle-wave "
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"for current oscillator." ) );
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connect( m_triangleWaveBtn, SIGNAL ( clicked ( void ) ),
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this, SLOT ( triangleWaveClicked( void ) ) );
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m_sawWaveBtn = new pixmapButton( this, tr( "Saw wave" ), _track );
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m_sawWaveBtn->move( 136, 37 );
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m_sawWaveBtn->setActiveGraphic( embed::getIconPixmap(
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"saw_wave_active" ) );
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m_sawWaveBtn->setInactiveGraphic( embed::getIconPixmap(
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"saw_wave_inactive" ) );
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toolTip::add( m_sawWaveBtn,
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tr( "Click here if you want a saw-wave for "
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"current oscillator." ) );
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connect( m_sawWaveBtn, SIGNAL (clicked ( void ) ),
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this, SLOT ( sawWaveClicked( void ) ) );
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m_sqrWaveBtn = new pixmapButton( this, tr( "Square wave" ), _track );
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m_sqrWaveBtn->move( 136, 54 );
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m_sqrWaveBtn->setActiveGraphic( embed::getIconPixmap(
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"square_wave_active" ) );
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m_sqrWaveBtn->setInactiveGraphic( embed::getIconPixmap(
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"square_wave_inactive" ) );
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toolTip::add( m_sqrWaveBtn,
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tr( "Click here if you want a square-wave for "
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"current oscillator." ) );
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connect( m_sqrWaveBtn, SIGNAL ( clicked ( void ) ),
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this, SLOT ( sqrWaveClicked( void ) ) );
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m_whiteNoiseWaveBtn = new pixmapButton( this, tr( "White noise wave" ),
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_track );
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m_whiteNoiseWaveBtn->move( 136, 71 );
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m_whiteNoiseWaveBtn->setActiveGraphic(
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embed::getIconPixmap( "white_noise_wave_active" ) );
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m_whiteNoiseWaveBtn->setInactiveGraphic(
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embed::getIconPixmap( "white_noise_wave_inactive" ) );
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toolTip::add( m_whiteNoiseWaveBtn,
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tr( "Click here if you want a white-noise for "
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"current oscillator." ) );
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connect( m_whiteNoiseWaveBtn, SIGNAL ( clicked ( void ) ),
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this, SLOT ( noiseWaveClicked( void ) ) );
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m_usrWaveBtn = new pixmapButton( this, tr( "User defined wave" ),
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_track );
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m_usrWaveBtn->move( 136, 88 );
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m_usrWaveBtn->setActiveGraphic( embed::getIconPixmap(
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"usr_wave_active" ) );
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m_usrWaveBtn->setInactiveGraphic( embed::getIconPixmap(
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"usr_wave_inactive" ) );
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toolTip::add( m_usrWaveBtn,
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tr( "Click here if you want a user-defined "
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"wave-shape for current oscillator." ) );
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connect( m_usrWaveBtn, SIGNAL ( clicked ( void ) ),
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this, SLOT ( usrWaveClicked( void ) ) );
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m_smoothBtn = new pixmapButton( this, tr( "Smooth" ), _track );
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m_smoothBtn->move( 3, 108 );
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m_smoothBtn->setActiveGraphic( PLUGIN_NAME::getIconPixmap(
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"smooth_active" ) );
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m_smoothBtn->setInactiveGraphic( PLUGIN_NAME::getIconPixmap(
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"smooth_inactive" ) );
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m_smoothBtn->setChecked( FALSE );
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toolTip::add( m_smoothBtn,
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tr( "Click here to smooth waveform." ) );
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connect( m_smoothBtn, SIGNAL ( clicked ( void ) ),
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this, SLOT ( smoothClicked( void ) ) );
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m_normalizeBtn = new pixmapButton( this, tr( "Normalize" ), _track );
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m_normalizeBtn->move( 20, 108 );
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m_normalizeBtn->setActiveGraphic( PLUGIN_NAME::getIconPixmap(
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"normalize_active" ) );
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m_normalizeBtn->setInactiveGraphic( PLUGIN_NAME::getIconPixmap(
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"normalize_inactive" ) );
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m_normalizeBtn->setChecked( FALSE );
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toolTip::add( m_normalizeBtn,
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tr( "Click here to normalize waveform." ) );
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connect( m_normalizeBtn, SIGNAL ( clicked ( void ) ),
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this, SLOT ( normalizeClicked( void ) ) );
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m_state = new ledCheckBox( "", this, tr( "Enable waveform" ), _track );
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m_state->move( 136, 109 );
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m_state->setChecked( TRUE );
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toolTip::add( m_state,
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tr( "Click here to enable/disable waveform." ) );
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m_sampleShape = new float[m_sampleLength];
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m_graph->setSamplePointer( m_sampleShape, m_sampleLength );
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m_lastBtn = m_sinWaveBtn;
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emit( sawWaveClicked() );
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move( _x, _y );
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}
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impulseEditor::~impulseEditor()
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{
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}
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void impulseEditor::sinWaveClicked( void )
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{
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m_lastBtn->setChecked( FALSE);
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m_lastBtn = m_sinWaveBtn;
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m_lastBtn->setChecked( TRUE );
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// generate a Sinus wave using static oscillator-method
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for( Uint32 i = 0; i < m_sampleLength; i++ )
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{
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m_sampleShape[i] = oscillator::sinSample( i /
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static_cast<float>( m_sampleLength ) );
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}
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sampleChanged();
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}
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void impulseEditor::triangleWaveClicked( void )
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{
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m_lastBtn->setChecked( FALSE);
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m_lastBtn = m_triangleWaveBtn;
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m_lastBtn->setChecked( TRUE );
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// generate a Triangle wave using static oscillator-method
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for( Uint32 i = 0; i < m_sampleLength; i++ )
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{
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m_sampleShape[i] = oscillator::triangleSample( i /
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static_cast<float>( m_sampleLength ) );
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}
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sampleChanged();
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}
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void impulseEditor::sawWaveClicked( void )
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{
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m_lastBtn->setChecked( FALSE);
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m_lastBtn = m_sawWaveBtn;
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m_lastBtn->setChecked( TRUE );
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// generate a Saw wave using static oscillator-method
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for( Uint32 i = 0; i < m_sampleLength; i++ )
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{
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m_sampleShape[i] = oscillator::sawSample( i /
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static_cast<float>( m_sampleLength ) );
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}
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sampleChanged();
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}
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void impulseEditor::sqrWaveClicked( void )
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{
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m_lastBtn->setChecked( FALSE);
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m_lastBtn = m_sqrWaveBtn;
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m_lastBtn->setChecked( TRUE );
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// generate a Sqr wave using static oscillator-method
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for( Uint32 i = 0; i < m_sampleLength; i++ )
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{
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m_sampleShape[i] = oscillator::squareSample( i /
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static_cast<float>( m_sampleLength ) );
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}
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sampleChanged();
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}
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void impulseEditor::noiseWaveClicked( void )
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{
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m_lastBtn->setChecked( FALSE);
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m_lastBtn = m_whiteNoiseWaveBtn;
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m_lastBtn->setChecked( TRUE );
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// generate a Noise wave using static oscillator-method
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for( Uint32 i = 0; i < m_sampleLength; i++ )
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{
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m_sampleShape[i] = oscillator::noiseSample( i /
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static_cast<float>( m_sampleLength ) );
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}
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sampleChanged();
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}
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void impulseEditor::usrWaveClicked( void )
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{
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m_lastBtn->setChecked( FALSE );
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m_lastBtn = m_usrWaveBtn;
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m_lastBtn->setChecked( TRUE );
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// zero sample_shape
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for( Uint32 i = 0; i < m_sampleLength; i++ )
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{
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m_sampleShape[i] = 0;
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}
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// load user shape
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sampleBuffer buffer;
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QString af = buffer.openAudioFile();
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if( af != "" )
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{
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buffer.setAudioFile( af );
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// copy buffer data
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if( m_sampleLength < static_cast<Uint32>( buffer.frames() ) )
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{
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m_sampleLength = m_sampleLength;
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}
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else
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{
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m_sampleLength = static_cast<int>( buffer.frames() );
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}
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for( Uint32 i = 0; i < m_sampleLength; i++ )
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{
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m_sampleShape[i] = static_cast<float>(
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buffer.data()[0][i] );
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}
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}
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sampleChanged();
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}
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void impulseEditor::smoothClicked( void )
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{
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m_smoothBtn->setChecked( TRUE );
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m_smoothBtn->update();
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float* temp = new float[m_sampleLength];
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memcpy( temp, m_sampleShape, sizeof( float ) * m_sampleLength );
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// Smoothing
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m_sampleShape[0] = temp[0] / 2.0f;
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for( Uint32 i = 1; i < m_sampleLength - 1; i++ )
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{
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m_sampleShape[i] = ( temp[i - 1] +
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temp[i] +
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temp[i + 1] ) / 3.0f;
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}
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m_sampleShape[m_sampleLength - 1] = temp[m_sampleLength - 1] / 2.0f;
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m_forward = FALSE;
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// Clean up
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delete[] temp;
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// paint
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update();
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m_graph->update();
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engine::getSongEditor()->setModified();
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m_smoothBtn->setChecked( FALSE );
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m_smoothBtn->update();
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}
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void impulseEditor::normalizeClicked( void )
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{
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m_normalizeBtn->setChecked( TRUE );
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m_normalizeBtn->update();
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float max = 0.0001f;
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for( Uint32 i = 0; i < m_sampleLength; i++ )
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{
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if( fabsf(m_sampleShape[i]) > max && m_sampleShape[i] != 0.0f )
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{
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max = fabs( m_sampleShape[i] );
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}
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}
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m_normalizeFactor = max;
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for( Uint32 i = 0; i < m_sampleLength; i++ )
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{
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m_sampleShape[i] /= m_normalizeFactor;
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}
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update();
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m_graph->update();
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engine::getSongEditor()->setModified();
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m_normalizeBtn->setChecked( FALSE );
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m_normalizeBtn->update();
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}
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void impulseEditor::sampleChanged()
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{
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// analyze
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float max = 0.0001f;
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for( Uint32 i = 0; i < m_sampleLength; i++ )
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{
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if( fabsf(m_sampleShape[i]) > max && m_sampleShape[i] != 0.0f )
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{
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max = fabs( m_sampleShape[i] );
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}
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}
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m_normalizeFactor = max;
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// update
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if( m_graph != NULL )
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{
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m_graph->update();
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}
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engine::getSongEditor()->setModified();
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}
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void impulseEditor::setOn( bool _on )
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{
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if( _on )
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{
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m_state->setChecked( TRUE );
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}
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else
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{
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m_state->setChecked( FALSE );
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}
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}
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void impulseEditor::contextMenuEvent( QContextMenuEvent * )
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{
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captionMenu contextMenu( accessibleName() );
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contextMenu.addAction( embed::getIconPixmap( "help" ), tr( "&Help" ),
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this, SLOT( displayHelp() ) );
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contextMenu.exec( QCursor::pos() );
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}
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void impulseEditor::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 impulseEditor::setValues( float * _shape )
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{
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for( Uint32 i = 0; i < m_sampleLength; i++ )
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{
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m_sampleShape[i] = _shape[i];
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}
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}
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#include "impulse_editor.moc"
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