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-rw-r--r--kpovmodeler/pmlatheedit.cpp333
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diff --git a/kpovmodeler/pmlatheedit.cpp b/kpovmodeler/pmlatheedit.cpp
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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 "pmlatheedit.h"
+#include "pmlathe.h"
+#include "pmvectoredit.h"
+#include "pmvectorlistedit.h"
+#include "pmpart.h"
+
+#include <qlayout.h>
+#include <qlabel.h>
+#include <qtooltip.h>
+#include <qcombobox.h>
+#include <qcheckbox.h>
+#include <qpushbutton.h>
+#include <klocale.h>
+#include <kdialog.h>
+#include <kiconloader.h>
+#include <kmessagebox.h>
+
+PMLatheEdit::PMLatheEdit( QWidget* parent, const char* name )
+ : Base( parent, name )
+{
+ m_pDisplayedObject = 0;
+}
+
+void PMLatheEdit::createTopWidgets( )
+{
+ Base::createTopWidgets( );
+
+ QHBoxLayout* hl = new QHBoxLayout( topLayout( ) );
+ hl->addWidget( new QLabel( i18n( "Spline type:" ), this ) );
+ m_pSplineType = new QComboBox( false, this );
+ m_pSplineType->insertItem( i18n( "Linear Spline" ) );
+ m_pSplineType->insertItem( i18n( "Quadratic Spline" ) );
+ m_pSplineType->insertItem( i18n( "Cubic Spline" ) );
+ m_pSplineType->insertItem( i18n( "Bezier Spline" ) );
+ hl->addWidget( m_pSplineType );
+ hl->addStretch( 1 );
+
+ connect( m_pSplineType, SIGNAL( activated( int ) ),
+ SLOT( slotTypeChanged( int ) ) );
+}
+
+void PMLatheEdit::createBottomWidgets( )
+{
+ topLayout( )->addWidget( new QLabel( i18n( "Spline points:" ), this ) );
+
+ m_pPoints = new PMVectorListEdit( "u", "v", this );
+ connect( m_pPoints, SIGNAL( dataChanged( ) ), SIGNAL( dataChanged( ) ) );
+ connect( m_pPoints, SIGNAL( selectionChanged( ) ),
+ SLOT( slotSelectionChanged( ) ) );
+ QHBoxLayout* hl = new QHBoxLayout( topLayout( ) );
+ hl->addWidget( m_pPoints, 2 );
+
+ m_pAddAbove = new QPushButton( this );
+ m_pAddAbove->setPixmap( SmallIcon( "pmaddpointabove" ) );
+ m_pAddBelow = new QPushButton( this );
+ m_pAddBelow->setPixmap( SmallIcon( "pmaddpoint" ) );
+ m_pRemove = new QPushButton( this );
+ m_pRemove->setPixmap( SmallIcon( "pmremovepoint" ) );
+ connect( m_pAddAbove, SIGNAL( clicked( ) ), SLOT( slotAddPointAbove( ) ) );
+ connect( m_pAddBelow, SIGNAL( clicked( ) ), SLOT( slotAddPointBelow( ) ) );
+ connect( m_pRemove, SIGNAL( clicked( ) ), SLOT( slotRemovePoint( ) ) );
+
+ QVBoxLayout* bl = new QVBoxLayout( hl );
+ bl->addWidget( m_pAddAbove );
+ bl->addWidget( m_pAddBelow );
+ bl->addWidget( m_pRemove );
+ bl->addStretch( 1 );
+
+ m_pSturm = new QCheckBox( i18n( "Sturm" ), this );
+ topLayout( )->addWidget( m_pSturm );
+ connect( m_pSturm, SIGNAL( clicked( ) ), SIGNAL( dataChanged( ) ) );
+
+ Base::createBottomWidgets( );
+}
+
+void PMLatheEdit::displayObject( PMObject* o )
+{
+ if( o->isA( "Lathe" ) )
+ {
+ bool readOnly = o->isReadOnly( );
+ m_pDisplayedObject = ( PMLathe* ) o;
+
+ switch( m_pDisplayedObject->splineType( ) )
+ {
+ case PMLathe::LinearSpline:
+ m_pSplineType->setCurrentItem( 0 );
+ break;
+ case PMLathe::QuadraticSpline:
+ m_pSplineType->setCurrentItem( 1 );
+ break;
+ case PMLathe::CubicSpline:
+ m_pSplineType->setCurrentItem( 2 );
+ break;
+ case PMLathe::BezierSpline:
+ m_pSplineType->setCurrentItem( 3 );
+ break;
+ }
+ m_pSplineType->setEnabled( !readOnly );
+ m_pSturm->setChecked( m_pDisplayedObject->sturm( ) );
+ m_pSturm->setEnabled( !readOnly );
+ m_pPoints->setReadOnly( readOnly );
+ m_pPoints->setVectors( m_pDisplayedObject->points( ), true );
+ updateControlPointSelection( );
+ updatePointButtons( );
+
+ Base::displayObject( o );
+ }
+ else
+ kdError( PMArea ) << "PMLatheEdit: Can't display object\n";
+}
+
+void PMLatheEdit::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 PMLatheEdit::saveContents( )
+{
+ if( m_pDisplayedObject )
+ {
+ m_pDisplayedObject->setPoints( m_pPoints->vectors( ) );
+
+ switch( m_pSplineType->currentItem( ) )
+ {
+ case 0:
+ m_pDisplayedObject->setSplineType( PMLathe::LinearSpline );
+ break;
+ case 1:
+ m_pDisplayedObject->setSplineType( PMLathe::QuadraticSpline );
+ break;
+ case 2:
+ m_pDisplayedObject->setSplineType( PMLathe::CubicSpline );
+ break;
+ case 3:
+ m_pDisplayedObject->setSplineType( PMLathe::BezierSpline );
+ break;
+ }
+ m_pDisplayedObject->setSturm( m_pSturm->isChecked( ) );
+ Base::saveContents( );
+ }
+}
+
+bool PMLatheEdit::isDataValid( )
+{
+ if( !m_pPoints->isDataValid( ) )
+ return false;
+
+ int np = m_pPoints->size( );
+ switch( m_pSplineType->currentItem( ) )
+ {
+ case 0:
+ if( np < 2 )
+ {
+ KMessageBox::error( this, i18n( "Linear splines need at least 2 points." ),
+ i18n( "Error" ) );
+ return false;
+ }
+ break;
+ case 1:
+ if( np < 3 )
+ {
+ KMessageBox::error( this, i18n( "Quadratic splines need at least 3 points." ),
+ i18n( "Error" ) );
+ return false;
+ }
+ break;
+ case 2:
+ if( np < 4 )
+ {
+ KMessageBox::error( this, i18n( "Cubic splines need at least 4 points." ),
+ i18n( "Error" ) );
+ return false;
+ }
+ break;
+ case 3:
+ if( ( np < 4 ) || ( ( np % 4 ) != 0 ) )
+ {
+ KMessageBox::error( this, i18n( "Bezier splines need 4 points for each segment." ),
+ i18n( "Error" ) );
+ return false;
+ }
+ break;
+ }
+
+ return Base::isDataValid( );
+}
+
+void PMLatheEdit::slotTypeChanged( int )
+{
+ emit dataChanged( );
+}
+
+void PMLatheEdit::slotAddPointAbove( )
+{
+ int index = m_pPoints->currentRow( );
+ if( index >= 0 )
+ {
+ QValueList<PMVector> points = m_pPoints->vectors( );
+ QValueListIterator<PMVector> it = points.at( index );
+
+ if( it != points.end( ) )
+ {
+ QValueListIterator<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( );
+ emit sizeChanged( );
+ }
+ }
+}
+
+void PMLatheEdit::slotAddPointBelow( )
+{
+ int index = m_pPoints->currentRow( );
+ if( index >= 0 )
+ {
+ QValueList<PMVector> points = m_pPoints->vectors( );
+ QValueListIterator<PMVector> it = points.at( index );
+
+ if( it != points.end( ) )
+ {
+ QValueListIterator<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( );
+ emit sizeChanged( );
+ }
+ }
+}
+
+void PMLatheEdit::slotRemovePoint( )
+{
+ int row = m_pPoints->currentRow( );
+
+ if( row >= 0 )
+ {
+ QValueList<PMVector> points = m_pPoints->vectors( );
+ QValueListIterator<PMVector> it = points.at( row );
+
+ if( it != points.end( ) && points.size( ) > 1 )
+ {
+ points.remove( it );
+ m_pPoints->setVectors( points, true );
+ updatePointButtons( );
+ emit dataChanged( );
+ emit sizeChanged( );
+ }
+ }
+}
+
+void PMLatheEdit::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 PMLatheEdit::updatePointButtons( )
+{
+ int row = m_pPoints->currentRow( );
+ m_pAddAbove->setEnabled( row >= 0 );
+ m_pAddBelow->setEnabled( row >= 0 );
+ m_pRemove->setEnabled( row >= 0 && m_pPoints->size( ) > 2 );
+}
+
+#include "pmlatheedit.moc"