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/*
**************************************************************************
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 <tqlayout.h>
#include <tqcheckbox.h>
#include <tqspinbox.h>
#include <tqlabel.h>
#include <tdelocale.h>
#include <kdialog.h>
PMPolynomEdit::PMPolynomEdit( TQWidget* parent, const char* name )
: Base( parent, name )
{
m_pDisplayedObject = 0;
m_currentOrder = 0;
m_readOnly = false;
}
void PMPolynomEdit::createTopWidgets( )
{
Base::createTopWidgets( );
TQHBoxLayout* hl = new TQHBoxLayout( topLayout( ) );
hl->addWidget( new TQLabel( i18n( "Order" ), this ) );
m_pOrder = new TQSpinBox( 2, 7, 1, this );
hl->addWidget( m_pOrder );
hl->addStretch( 1 );
connect( m_pOrder, TQ_SIGNAL( valueChanged( int ) ), TQ_SLOT( slotOrderChanged( int ) ) );
topLayout( )->addWidget( new TQLabel( i18n( "Formula:" ), this ) );
m_pPolyWidget = new TQWidget( this );
topLayout( )->addWidget( m_pPolyWidget );
m_pSturm = new TQCheckBox( i18n( "Sturm" ), this );
topLayout( )->addWidget( m_pSturm );
connect( m_pSturm, TQ_SIGNAL( clicked( ) ), TQ_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 )
{
TQValueList<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;
TQGridLayout* gl = new TQGridLayout( m_pPolyWidget, nr * 2 - 1, 9, 0 );
TQLabel* l = 0;
PMFloatEdit* edit;
PMFormulaLabel* fl;
TQValueList<PMPolynomExponents>::ConstIterator it = polynom.begin( );
TQString text;
int row, col;
TQString plus( "+" );
for( i = 0; it != polynom.end( ); i++, ++it )
{
row = ( i / 3 ) * 2;
col = ( i % 3 ) * 3;
if( i != 0 )
{
l = new TQLabel( plus, m_pPolyWidget );
m_labels.append( l );
gl->addWidget( l, row, col );
l->show( );
}
edit = new PMFloatEdit( m_pPolyWidget );
connect( edit, TQ_SIGNAL( dataChanged( ) ), TQ_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 )
{
TQPtrListIterator<PMFloatEdit> eit( m_edits );
int i;
for( i = 0; *eit; ++eit, ++i )
( *eit )->setValue( co[i] );
}
else if( dOrder > cOrder )
{
TQValueList<PMPolynomExponents>::ConstIterator dit = polynom.begin( );
TQValueList<PMPolynomExponents>& cpoly
= PMPolynomExponents::polynom( cOrder );
TQValueList<PMPolynomExponents>::ConstIterator cit = cpoly.begin( );
TQPtrListIterator<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
{
TQValueList<PMPolynomExponents>::ConstIterator dit = polynom.begin( );
TQValueList<PMPolynomExponents>& cpoly
= PMPolynomExponents::polynom( cOrder );
TQValueList<PMPolynomExponents>::ConstIterator cit = cpoly.begin( );
TQPtrListIterator<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
{
TQPtrListIterator<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( )
{
TQPtrListIterator<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"
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