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tdegraphics/kpovmodeler/pmsoredit.cpp

283 lines
8.7 KiB

/*
**************************************************************************
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 "pmsoredit.h"
#include "pmsor.h"
#include "pmvectorlistedit.h"
#include "pmpart.h"
#include <tqlayout.h>
#include <tqlabel.h>
#include <tqtooltip.h>
#include <tqcombobox.h>
#include <tqcheckbox.h>
#include <tqpushbutton.h>
#include <klocale.h>
#include <kdialog.h>
#include <kiconloader.h>
#include <kmessagebox.h>
PMSurfaceOfRevolutionEdit::PMSurfaceOfRevolutionEdit( TQWidget* parent, const char* name )
: Base( parent, name )
{
m_pDisplayedObject = 0;
}
void PMSurfaceOfRevolutionEdit::createBottomWidgets( )
{
topLayout( )->addWidget( new TQLabel( i18n( "Spline points:" ), this ) );
m_pPoints = new PMVectorListEdit( "u", "v", this );
connect( m_pPoints, TQT_SIGNAL( dataChanged( ) ), TQT_SIGNAL( dataChanged( ) ) );
connect( m_pPoints, TQT_SIGNAL( selectionChanged( ) ),
TQT_SLOT( slotSelectionChanged( ) ) );
TQHBoxLayout* hl = new TQHBoxLayout( topLayout( ) );
hl->addWidget( m_pPoints, 2 );
m_pAddAbove = new TQPushButton( this );
m_pAddAbove->setPixmap( SmallIcon( "pmaddpointabove" ) );
m_pAddBelow = new TQPushButton( this );
m_pAddBelow->setPixmap( SmallIcon( "pmaddpoint" ) );
m_pRemove = new TQPushButton( this );
m_pRemove->setPixmap( SmallIcon( "pmremovepoint" ) );
connect( m_pAddAbove, TQT_SIGNAL( clicked( ) ), TQT_SLOT( slotAddPointAbove( ) ) );
connect( m_pAddBelow, TQT_SIGNAL( clicked( ) ), TQT_SLOT( slotAddPointBelow( ) ) );
connect( m_pRemove, TQT_SIGNAL( clicked( ) ), TQT_SLOT( slotRemovePoint( ) ) );
TQVBoxLayout* bl = new TQVBoxLayout( hl );
bl->addWidget( m_pAddAbove );
bl->addWidget( m_pAddBelow );
bl->addWidget( m_pRemove );
bl->addStretch( 1 );
m_pOpen = new TQCheckBox( i18n( "type of the object", "Open" ), this );
topLayout( )->addWidget( m_pOpen );
connect( m_pOpen, TQT_SIGNAL( clicked( ) ), TQT_SIGNAL( dataChanged( ) ) );
m_pSturm = new TQCheckBox( i18n( "Sturm" ), this );
topLayout( )->addWidget( m_pSturm );
connect( m_pSturm, TQT_SIGNAL( clicked( ) ), TQT_SIGNAL( dataChanged( ) ) );
Base::createBottomWidgets( );
}
void PMSurfaceOfRevolutionEdit::displayObject( PMObject* o )
{
if( o->isA( "SurfaceOfRevolution" ) )
{
bool readOnly = o->isReadOnly( );
m_pDisplayedObject = ( PMSurfaceOfRevolution* ) o;
m_pOpen->setChecked( m_pDisplayedObject->open( ) );
m_pOpen->setEnabled( !readOnly );
m_pSturm->setChecked( m_pDisplayedObject->sturm( ) );
m_pSturm->setEnabled( !readOnly );
m_pPoints->setVectors( m_pDisplayedObject->points( ), true );
updateControlPointSelection( );
updatePointButtons( );
Base::displayObject( o );
}
else
kdError( PMArea ) << "PMSurfaceOfRevolutionEdit: Can't display object\n";
}
void PMSurfaceOfRevolutionEdit::updateControlPointSelection( )
{
PMControlPointList cp = part( )->activeControlPoints( );
PMControlPointListIterator it( cp );
int i;
int np = cp.count( ) / 2;
if( np == m_pPoints->size( ) )
{
m_pPoints->blockSelectionUpdates( true );
bool sb = m_pPoints->signalsBlocked( );
m_pPoints->blockSignals( true );
m_pPoints->clearSelection( );
for( i = 0; i < np; i++, ++it )
if( ( *it )->selected( ) )
m_pPoints->select( i );
for( i = 0; i < np; i++, ++it )
if( ( *it )->selected( ) )
m_pPoints->select( i );
m_pPoints->blockSignals( sb );
m_pPoints->blockSelectionUpdates( false );
}
}
void PMSurfaceOfRevolutionEdit::saveContents( )
{
if( m_pDisplayedObject )
{
m_pDisplayedObject->setPoints( m_pPoints->vectors( ) );
m_pDisplayedObject->setOpen( m_pOpen->isChecked( ) );
m_pDisplayedObject->setSturm( m_pSturm->isChecked( ) );
Base::saveContents( );
}
}
bool PMSurfaceOfRevolutionEdit::isDataValid( )
{
if( !m_pPoints->isDataValid( ) )
return false;
int np = m_pPoints->size( );
if( np < 4 )
{
KMessageBox::error( this, i18n( "The surface of revolution object needs at least 4 points." ),
i18n( "Error" ) );
return false;
}
TQValueList<PMVector> points = m_pPoints->vectors( );
TQValueListIterator<PMVector> it1 = points.begin( );
TQValueListIterator<PMVector> it2 = it1; ++it2;
TQValueListIterator<PMVector> it3 = it2; ++it3;
int pnr;
for( pnr = 0; it3 != points.end( ); ++it1, ++it2, ++it3, pnr++ )
{
if( ( pnr == 0 ) || ( pnr == ( np - 3 ) ) )
{
if( approxZero( ( *it1 )[1] - ( *it3 )[1], c_sorTolerance ) )
{
m_pPoints->setCurrentCell( pnr, 1 );
KMessageBox::error( this, i18n( "The v coordinate of point %1 and %2 must be different." )
.arg( pnr + 1 ).arg( pnr + 3 ),
i18n( "Error" ) );
return false;
}
}
if( pnr != 0 )
{
if( ( ( *it2 )[1] - ( *it1 )[1] ) < c_sorTolerance )
{
m_pPoints->setCurrentCell( pnr + 1, 1 );
KMessageBox::error( this, i18n( "The v coordinates must be strictly increasing." ),
i18n( "Error" ) );
return false;
}
}
}
return Base::isDataValid( );
}
void PMSurfaceOfRevolutionEdit::slotAddPointAbove( )
{
int index = m_pPoints->currentRow( );
if( index >= 0 )
{
TQValueList<PMVector> points = m_pPoints->vectors( );
TQValueListIterator<PMVector> it = points.at( index );
if( it != points.end( ) )
{
TQValueListIterator<PMVector> it2 = it;
it2--;
PMVector v;
if( it2 == points.end( ) )
v = *it;
else
v = ( *it + *it2 ) / 2;
points.insert( it, v );
m_pPoints->setVectors( points, true );
updatePointButtons( );
emit dataChanged( );
}
}
}
void PMSurfaceOfRevolutionEdit::slotAddPointBelow( )
{
int index = m_pPoints->currentRow( );
if( index >= 0 )
{
TQValueList<PMVector> points = m_pPoints->vectors( );
TQValueListIterator<PMVector> it = points.at( index );
if( it != points.end( ) )
{
TQValueListIterator<PMVector> it2 = it;
it2++;
PMVector v;
if( it2 == points.end( ) )
v = *it;
else
v = ( *it + *it2 ) / 2;
points.insert( it2, v );
m_pPoints->setVectors( points, true );
m_pPoints->setCurrentCell( index + 1, m_pPoints->currentColumn( ) );
updatePointButtons( );
emit dataChanged( );
}
}
}
void PMSurfaceOfRevolutionEdit::slotRemovePoint( )
{
int row = m_pPoints->currentRow( );
if( row >= 0 )
{
TQValueList<PMVector> points = m_pPoints->vectors( );
TQValueListIterator<PMVector> it = points.at( row );
if( it != points.end( ) && points.size( ) > 1 )
{
points.remove( it );
m_pPoints->setVectors( points, true );
updatePointButtons( );
emit dataChanged( );
}
}
}
void PMSurfaceOfRevolutionEdit::slotSelectionChanged( )
{
PMControlPointList cp = part( )->activeControlPoints( );
PMControlPointListIterator it( cp );
int np = cp.count( ) / 2;
int i;
if( np == m_pPoints->size( ) )
{
for( i = 0; i < np; i++, ++it )
( *it )->setSelected( m_pPoints->isSelected( i ) );
for( i = 0; i < np; i++, ++it )
( *it )->setSelected( m_pPoints->isSelected( i ) );
emit controlPointSelectionChanged( );
}
updatePointButtons( );
}
void PMSurfaceOfRevolutionEdit::updatePointButtons( )
{
int row = m_pPoints->currentRow( );
m_pAddAbove->setEnabled( row >= 0 );
m_pAddBelow->setEnabled( row >= 0 );
m_pRemove->setEnabled( row >= 0 && m_pPoints->size( ) > 4 );
}
#include "pmsoredit.moc"