Copy the KDE 3.5 branch to branches/trinity for new KDE 3.5 features.

BUG:215923


git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/kdegraphics@1054174 283d02a7-25f6-0310-bc7c-ecb5cbfe19da

1 files changed, 333 insertions, 0 deletions

diff --git a/kpovmodeler/pmlatheedit.cpp b/kpovmodeler/pmlatheedit.cpp
new file mode 100644
index 00000000..970cc2f5
--- /dev/null
+++ b/kpovmodeler/pmlatheedit.cpp
@@ -0,0 +1,333 @@
+/*
+**************************************************************************
+                                 description
+                             --------------------
+    copyright            : (C) 2002 by Andreas Zehender
+    email                : [email protected]
+**************************************************************************
+
+**************************************************************************
+*                                                                        *
+*  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"