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Diffstat (limited to 'kpovmodeler/pmpolynomedit.cpp')
| -rw-r--r-- | kpovmodeler/pmpolynomedit.cpp | 255 |
1 files changed, 255 insertions, 0 deletions
diff --git a/kpovmodeler/pmpolynomedit.cpp b/kpovmodeler/pmpolynomedit.cpp new file mode 100644 index 00000000..b236a8c6 --- /dev/null +++ b/kpovmodeler/pmpolynomedit.cpp @@ -0,0 +1,255 @@ +/* +************************************************************************** + description + -------------------- + copyright : (C) 2002 by Andreas Zehender + email : zehender@kde.org +************************************************************************** + +************************************************************************** +* * +* This program is free software; you can redistribute it and/or modify * +* it under the terms of the GNU General Public License as published by * +* the Free Software Foundation; either version 2 of the License, or * +* (at your option) any later version. * +* * +**************************************************************************/ + + +#include "pmpolynomedit.h" +#include "pmpolynom.h" +#include "pmpolynomexponents.h" +#include "pmlineedits.h" +#include "pmformulalabel.h" + +#include <qlayout.h> +#include <qcheckbox.h> +#include <qspinbox.h> +#include <qlabel.h> +#include <klocale.h> +#include <kdialog.h> + +PMPolynomEdit::PMPolynomEdit( QWidget* parent, const char* name ) + : Base( parent, name ) +{ + m_pDisplayedObject = 0; + m_currentOrder = 0; + m_readOnly = false; +} + +void PMPolynomEdit::createTopWidgets( ) +{ + Base::createTopWidgets( ); + + QHBoxLayout* hl = new QHBoxLayout( topLayout( ) ); + hl->addWidget( new QLabel( i18n( "Order" ), this ) ); + m_pOrder = new QSpinBox( 2, 7, 1, this ); + hl->addWidget( m_pOrder ); + hl->addStretch( 1 ); + connect( m_pOrder, SIGNAL( valueChanged( int ) ), SLOT( slotOrderChanged( int ) ) ); + + topLayout( )->addWidget( new QLabel( i18n( "Formula:" ), this ) ); + m_pPolyWidget = new QWidget( this ); + topLayout( )->addWidget( m_pPolyWidget ); + m_pSturm = new QCheckBox( i18n( "Sturm" ), this ); + topLayout( )->addWidget( m_pSturm ); + connect( m_pSturm, SIGNAL( clicked( ) ), SIGNAL( dataChanged( ) ) ); +} + +void PMPolynomEdit::displayObject( PMObject* o ) +{ + if( o->isA( "Polynom" ) ) + { + bool readOnly = o->isReadOnly( ); + m_readOnly = readOnly; + m_pDisplayedObject = ( PMPolynom* ) o; + + displayCoefficients( m_pDisplayedObject->coefficients( ), + m_pDisplayedObject->polynomOrder( ), + m_pDisplayedObject->polynomOrder( ) ); + + m_pSturm->setChecked( m_pDisplayedObject->sturm( ) ); + m_pSturm->setEnabled( !readOnly ); + if( m_pDisplayedObject->polynomOrder( ) == 2 ) + m_pSturm->hide( ); + else + m_pSturm->show( ); + + bool sb = m_pOrder->signalsBlocked( ); + m_pOrder->blockSignals( true ); + m_pOrder->setValue( m_pDisplayedObject->polynomOrder( ) ); + m_pOrder->blockSignals( sb ); + + Base::displayObject( o ); + } + else + kdError( PMArea ) << "PMPolynomEdit: Can't display object\n"; +} + +void PMPolynomEdit::displayCoefficients( const PMVector& co, int cOrder, + int dOrder ) +{ + QValueList<PMPolynomExponents>& polynom + = PMPolynomExponents::polynom( dOrder ); + + if( dOrder != m_currentOrder ) + { + if( m_currentOrder > 0 ) + { + if( m_pPolyWidget->layout( ) ) + delete m_pPolyWidget->layout( ); + + m_labels.setAutoDelete( true ); + m_labels.clear( ); + m_labels.setAutoDelete( false ); + m_edits.setAutoDelete( true ); + m_edits.clear( ); + m_edits.setAutoDelete( false ); + } + + int nedit = polynom.count( ); + int nr = ( nedit + 2 ) / 3; + int i; + + QGridLayout* gl = new QGridLayout( m_pPolyWidget, nr * 2 - 1, 9, 0 ); + QLabel* l = 0; + PMFloatEdit* edit; + PMFormulaLabel* fl; + + QValueList<PMPolynomExponents>::ConstIterator it = polynom.begin( ); + QString text; + int row, col; + QString plus( "+" ); + + for( i = 0; it != polynom.end( ); i++, ++it ) + { + row = ( i / 3 ) * 2; + col = ( i % 3 ) * 3; + + if( i != 0 ) + { + l = new QLabel( plus, m_pPolyWidget ); + m_labels.append( l ); + gl->addWidget( l, row, col ); + l->show( ); + } + + edit = new PMFloatEdit( m_pPolyWidget ); + connect( edit, SIGNAL( dataChanged( ) ), SIGNAL( dataChanged( ) ) ); + m_edits.append( edit ); + gl->addWidget( edit, row, col + 1 ); + edit->show( ); + edit->setReadOnly( m_readOnly ); + + fl = new PMFormulaLabel( *it, m_pPolyWidget ); + + m_labels.append( fl ); + gl->addWidget( fl, row, col + 2 ); + fl->show( ); + } + for( i = 0; i < ( nr - 1 ); i++ ) + gl->addRowSpacing( i * 2 + 1, KDialog::spacingHint( ) ); + + emit sizeChanged( ); + } + m_currentOrder = dOrder; + + + if( dOrder == cOrder ) + { + QPtrListIterator<PMFloatEdit> eit( m_edits ); + int i; + for( i = 0; *eit; ++eit, ++i ) + ( *eit )->setValue( co[i] ); + } + else if( dOrder > cOrder ) + { + QValueList<PMPolynomExponents>::ConstIterator dit = polynom.begin( ); + QValueList<PMPolynomExponents>& cpoly + = PMPolynomExponents::polynom( cOrder ); + QValueList<PMPolynomExponents>::ConstIterator cit = cpoly.begin( ); + QPtrListIterator<PMFloatEdit> eit( m_edits ); + int i = 0; + + for( ; ( dit != polynom.end( ) ) && ( cit != cpoly.end( ) ); ++dit, ++eit ) + { + if( *dit == *cit ) + { + ( *eit )->setValue( co[i] ); + i++; + cit++; + } + else + ( *eit )->setValue( 0.0 ); + } + if( ( dit != polynom.end( ) ) || ( cit != cpoly.end( ) ) ) + kdError( PMArea ) << "displayExponents is buggy!\n"; + } + else // dOrder < cOrder + { + QValueList<PMPolynomExponents>::ConstIterator dit = polynom.begin( ); + QValueList<PMPolynomExponents>& cpoly + = PMPolynomExponents::polynom( cOrder ); + QValueList<PMPolynomExponents>::ConstIterator cit = cpoly.begin( ); + QPtrListIterator<PMFloatEdit> eit( m_edits ); + int i = 0; + + for( ; ( dit != polynom.end( ) ) && ( cit != cpoly.end( ) ); ++cit, ++i ) + { + if( *dit == *cit ) + { + ( *eit )->setValue( co[i] ); + ++eit; + ++dit; + } + } + if( ( dit != polynom.end( ) ) || ( cit != cpoly.end( ) ) ) + kdError( PMArea ) << "displayExponents is buggy!\n"; + } +} + +PMVector PMPolynomEdit::coefficients( ) const +{ + QPtrListIterator<PMFloatEdit> eit( m_edits ); + int num = m_edits.count( ); + PMVector v( num ); + int i; + + for( i = 0 ; *eit; ++eit, ++i ) + v[i] = ( *eit )->value( ); + return v; +} + +void PMPolynomEdit::saveContents( ) +{ + if( m_pDisplayedObject ) + { + m_pDisplayedObject->setPolynomOrder( m_pOrder->value( ) ); + m_pDisplayedObject->setCoefficients( coefficients( ) ); + + Base::saveContents( ); + + m_pDisplayedObject->setSturm( m_pSturm->isChecked( ) ); + } +} + +bool PMPolynomEdit::isDataValid( ) +{ + QPtrListIterator<PMFloatEdit> eit( m_edits ); + for( ; *eit; ++eit ) + if( !( *eit )->isDataValid( ) ) + return false; + return Base::isDataValid( ); +} + +void PMPolynomEdit::slotOrderChanged( int order ) +{ + if( order == 2 ) + m_pSturm->hide( ); + else + m_pSturm->show( ); + + displayCoefficients( coefficients( ), m_currentOrder, order ); +} + +#include "pmpolynomedit.moc" |