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, 769 insertions, 0 deletions

diff --git a/kpovmodeler/pmcamera.cpp b/kpovmodeler/pmcamera.cpp
new file mode 100644
index 00000000..b224f340
--- /dev/null
+++ b/kpovmodeler/pmcamera.cpp
@@ -0,0 +1,769 @@
+/*
+**************************************************************************
+                                 description
+                             --------------------
+    copyright            : (C) 2000-2001 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 "pmcamera.h"
+
+#include "pmxmlhelper.h"
+#include "pmcameraedit.h"
+#include "pmmemento.h"
+#include "pmviewstructure.h"
+#include "pm3dcontrolpoint.h"
+#include "pmvectorcontrolpoint.h"
+#include "pmenumproperty.h"
+
+#include <klocale.h>
+
+PMDefinePropertyClass( PMCamera, PMCameraProperty );
+PMDefineEnumPropertyClass( PMCamera, PMCamera::CameraType,
+                           PMCameraTypeProperty );
+
+PMViewStructure* PMCamera::s_pDefaultViewStructure = 0;
+PMMetaObject* PMCamera::s_pMetaObject = 0;
+PMObject* createNewCamera( PMPart* part )
+{
+   return new PMCamera( part );
+}
+
+const PMVector locationDefault = PMVector( 0.0, 0.0, 0.0 );
+const PMVector lookAtDefault = PMVector( 0.0, 0.0, 1.0 );
+const PMVector directionDefault = PMVector( 0.0, 0.0, 1.0 );
+const PMVector upDefault = PMVector( 0.0, 1.0, 0.0 );
+const PMVector rightDefault = PMVector( 4.0/3.0, 0.0, 0.0 );
+const PMVector skyDefault = PMVector( 0.0, 1.0, 0.0 );
+//const double aspectDefault = 1.0;
+const bool angleEnabledDefault = false;
+const double angleDefault = 90.0;
+const PMCamera::CameraType cameraTypeDefault = PMCamera::Perspective;
+const int cylinderTypeDefault = 1;
+const bool focalBlurDefault = false;
+const double apertureDefault = 0.4;
+const int blurSamplesDefault = 10;
+const PMVector focalPointDefault = PMVector( 0.0, 0.0, 0.0 );
+const double confidenceDefault = 0.9;
+const double varianceDefault = 0.008;
+const bool c_defaultExport = true;
+
+PMCamera::PMCamera( PMPart* part )
+      : Base( part )
+{
+   m_location = locationDefault;
+   m_lookAt = lookAtDefault;
+   m_direction = directionDefault;
+
+   m_up = upDefault;
+   m_right = rightDefault;
+
+   m_sky = skyDefault;
+   m_angle = angleDefault;
+   m_angleEnabled = angleEnabledDefault;
+
+   m_cameraType = cameraTypeDefault;
+   m_cylinderType = cylinderTypeDefault;
+
+   m_focalBlurEnabled = focalBlurDefault;
+   m_aperture = apertureDefault;
+   m_blurSamples = blurSamplesDefault;
+   m_focalPoint = focalPointDefault;
+   m_confidence = confidenceDefault;
+   m_variance = varianceDefault;
+   m_export = c_defaultExport;
+}
+
+PMCamera::PMCamera( const PMCamera& c )
+      : Base( c )
+{
+   m_location = c.m_location;
+   m_lookAt = c.m_lookAt;
+   m_direction = c.m_direction;
+
+   m_up = c.m_up;
+   m_right = c.m_right;
+
+   m_sky = c.m_sky;
+   m_angle = c.m_angle;
+   m_angleEnabled = c.m_angleEnabled;
+
+   m_cameraType = c.m_cameraType;
+   m_cylinderType = c.m_cylinderType;
+
+   m_focalBlurEnabled = c.m_focalBlurEnabled;
+   m_aperture = c.m_aperture;
+   m_blurSamples = c.m_blurSamples;
+   m_focalPoint = c.m_focalPoint;
+   m_confidence = c.m_confidence;
+   m_variance = c.m_variance;
+   m_export = c.m_export;
+}
+
+PMCamera::~PMCamera( )
+{
+}
+
+QString PMCamera::description( ) const
+{
+   return i18n( "camera" );
+}
+
+void PMCamera::serialize( QDomElement& e, QDomDocument& doc ) const
+{
+   e.setAttribute( "camera_type", cameraTypeToString( m_cameraType ) );
+   e.setAttribute( "cylinder_type", m_cylinderType );
+   e.setAttribute( "location", m_location.serializeXML( ) );
+   e.setAttribute( "sky", m_sky.serializeXML( ) );
+   e.setAttribute( "direction", m_direction.serializeXML( ) );
+   e.setAttribute( "right", m_right.serializeXML( ) );
+   e.setAttribute( "up", m_up.serializeXML( ) );
+   e.setAttribute( "look_at", m_lookAt.serializeXML( ) );
+   e.setAttribute( "angle_enabled", m_angleEnabled );
+   e.setAttribute( "angle", m_angle );
+   e.setAttribute( "focal_blur", m_focalBlurEnabled );
+   e.setAttribute( "aperture", m_aperture );
+   e.setAttribute( "blur_samples", m_blurSamples );
+   e.setAttribute( "focal_point", m_focalPoint.serializeXML( ) );
+   e.setAttribute( "confidence", m_confidence );
+   e.setAttribute( "variance", m_variance );
+   e.setAttribute( "export", m_export );
+
+   Base::serialize( e, doc );
+}
+
+void PMCamera::readAttributes( const PMXMLHelper& h )
+{
+   m_cameraType = stringToCameraType( h.stringAttribute( "camera_type",
+                                                         "perspective" ) );
+   m_cylinderType = h.intAttribute( "cylinder_type", cylinderTypeDefault );
+   m_location = h.vectorAttribute( "location", locationDefault );
+   m_sky = h.vectorAttribute( "sky", skyDefault );
+   m_direction = h.vectorAttribute( "direction", directionDefault );
+   m_right = h.vectorAttribute( "right", rightDefault );
+   m_up = h.vectorAttribute( "up", upDefault );
+   m_lookAt = h.vectorAttribute( "look_at", lookAtDefault );
+   m_angleEnabled = h.boolAttribute( "angle_enabled", angleEnabledDefault );
+   m_angle = h.doubleAttribute( "angle", angleDefault );
+   m_focalBlurEnabled = h.boolAttribute( "focal_blur", focalBlurDefault );
+   m_aperture = h.doubleAttribute( "aperture", apertureDefault );
+   m_blurSamples = h.intAttribute( "blur_samples", blurSamplesDefault );
+   m_focalPoint = h.vectorAttribute( "focal_point", focalPointDefault );
+   m_confidence = h.doubleAttribute( "confidence", confidenceDefault );
+   m_variance = h.doubleAttribute( "variance", varianceDefault );
+   m_export = h.boolAttribute( "export", c_defaultExport );
+   Base::readAttributes( h );
+}
+
+PMMetaObject* PMCamera::metaObject( ) const
+{
+   if( !s_pMetaObject )
+   {
+      s_pMetaObject = new PMMetaObject( "Camera", Base::metaObject( ),
+                                        createNewCamera );
+      s_pMetaObject->addProperty(
+         new PMCameraProperty( "location", &PMCamera::setLocation,
+                         &PMCamera::location ) );
+      s_pMetaObject->addProperty(
+         new PMCameraProperty( "lookAt", &PMCamera::setLookAt,
+                         &PMCamera::lookAt ) );
+      s_pMetaObject->addProperty(
+         new PMCameraProperty( "up", &PMCamera::setUp,
+                         &PMCamera::up ) );
+      s_pMetaObject->addProperty(
+         new PMCameraProperty( "right", &PMCamera::setRight,
+                         &PMCamera::right ) );
+      s_pMetaObject->addProperty(
+         new PMCameraProperty( "direction", &PMCamera::setDirection,
+                         &PMCamera::direction ) );
+      s_pMetaObject->addProperty(
+         new PMCameraProperty( "sky", &PMCamera::setSky,
+                         &PMCamera::sky ) );
+      s_pMetaObject->addProperty(
+         new PMCameraProperty( "aspect", 0, &PMCamera::aspect ) );
+
+      s_pMetaObject->addProperty(
+         new PMCameraProperty( "angleEnabled", &PMCamera::enableAngle,
+                         &PMCamera::isAngleEnabled ) );
+      s_pMetaObject->addProperty(
+         new PMCameraProperty( "angle", &PMCamera::setAngle,
+                         &PMCamera::angle ) );
+
+      PMCameraTypeProperty* p = new PMCameraTypeProperty(
+         "cameraType", &PMCamera::setCameraType,
+         &PMCamera::cameraType );
+      p->addEnumValue( "Perspective", Perspective );
+      p->addEnumValue( "Orthographic", Orthographic );
+      p->addEnumValue( "FishEye", FishEye );
+      p->addEnumValue( "UltraWideAngle", UltraWideAngle );
+      p->addEnumValue( "Omnimax", Omnimax );
+      p->addEnumValue( "Panoramic", Panoramic );
+      p->addEnumValue( "Cylinder", Cylinder );
+      s_pMetaObject->addProperty( p );
+
+      s_pMetaObject->addProperty(
+         new PMCameraProperty( "cylinderType", &PMCamera::setCylinderType,
+                         &PMCamera::cylinderType ) );
+      s_pMetaObject->addProperty(
+         new PMCameraProperty( "focalBlurEnabled", &PMCamera::enableFocalBlur,
+                         &PMCamera::isFocalBlurEnabled ) );
+      s_pMetaObject->addProperty(
+         new PMCameraProperty( "aperture", &PMCamera::setAperture,
+                         &PMCamera::aperture ) );
+      s_pMetaObject->addProperty(
+         new PMCameraProperty( "blurSamples", &PMCamera::setBlurSamples,
+                         &PMCamera::blurSamples ) );
+      s_pMetaObject->addProperty(
+         new PMCameraProperty( "focalPoint", &PMCamera::setFocalPoint,
+                         &PMCamera::focalPoint ) );
+      s_pMetaObject->addProperty(
+         new PMCameraProperty( "confidence", &PMCamera::setConfidence,
+                         &PMCamera::confidence ) );
+      s_pMetaObject->addProperty(
+         new PMCameraProperty( "variance", &PMCamera::setVariance,
+                         &PMCamera::variance ) );
+      s_pMetaObject->addProperty(
+         new PMCameraProperty( "export", &PMCamera::setExportPovray,
+                         &PMCamera::exportPovray ) );
+   }
+   return s_pMetaObject;
+}
+
+void PMCamera::setLocation( const PMVector& p )
+{
+   if( p != m_location )
+   {
+      if( m_pMemento )
+         m_pMemento->addData( s_pMetaObject, PMLocationID, m_location );
+      m_location = p;
+      m_location.resize( 3 );
+      setViewStructureChanged( );
+   }
+}
+
+void PMCamera::setLookAt( const PMVector& p )
+{
+   if( p != m_lookAt )
+   {
+      if( m_pMemento )
+         m_pMemento->addData( s_pMetaObject, PMLookAtID, m_lookAt );
+      m_lookAt = p;
+      m_lookAt.resize( 3 );
+      setViewStructureChanged( );
+   }
+}
+
+void PMCamera::setUp( const PMVector& v )
+{
+   if( v != m_up )
+   {
+      if( m_pMemento )
+         m_pMemento->addData( s_pMetaObject, PMUpID, m_up );
+      m_up = v;
+      m_up.resize( 3 );
+      setViewStructureChanged( );
+   }
+}
+
+void PMCamera::setRight( const PMVector& v )
+{
+   if( v != m_right )
+   {
+      if( m_pMemento )
+         m_pMemento->addData( s_pMetaObject, PMRightID, m_right );
+      m_right = v;
+      m_right.resize( 3 );
+      setViewStructureChanged( );
+   }
+}
+
+void PMCamera::setDirection( const PMVector& v )
+{
+   if( v != m_direction )
+   {
+      if( m_pMemento )
+         m_pMemento->addData( s_pMetaObject, PMDirectionID, m_direction );
+      m_direction = v;
+      m_direction.resize( 3 );
+      setViewStructureChanged( );
+   }
+}
+
+void PMCamera::setSky( const PMVector& v )
+{
+   if( v != m_sky )
+   {
+      if( m_pMemento )
+         m_pMemento->addData( s_pMetaObject, PMSkyID, m_sky );
+      m_sky = v;
+      m_sky.resize( 3 );
+      setViewStructureChanged( );
+   }
+}
+
+double PMCamera::aspect( ) const
+{
+   double d = m_up.abs( );
+   if( approxZero( d ) )
+      return 1.0;
+   return m_right.abs( ) / d;
+}
+
+void PMCamera::enableAngle( bool yes )
+{
+   if( yes != m_angleEnabled )
+   {
+      if( m_pMemento )
+         m_pMemento->addData( s_pMetaObject, PMAngleEnabledID, m_angleEnabled );
+      m_angleEnabled = yes;
+      setViewStructureChanged( );
+   }
+}
+
+void PMCamera::setAngle( double a )
+{
+   if( a != m_angle )
+   {
+      if( m_pMemento )
+         m_pMemento->addData( s_pMetaObject, PMAngleID, m_angle );
+      m_angle = a;
+      setViewStructureChanged( );
+   }
+}
+
+void PMCamera::setCameraType( PMCamera::CameraType t )
+{
+   if( t != m_cameraType )
+   {
+      if( m_pMemento )
+         m_pMemento->addData( s_pMetaObject, PMCameraTypeID, m_cameraType );
+      m_cameraType = t;
+      setViewStructureChanged( );
+   }
+}
+
+void PMCamera::setCylinderType( int t )
+{
+   if( ( t < 1 ) || ( t > 4 ) )
+      kdError( PMArea ) << "Invalid type in PMCylinder::setCylinderType\n";
+   else if( t != m_cylinderType )
+   {
+      if( m_pMemento )
+         m_pMemento->addData( s_pMetaObject, PMCylinderTypeID, m_cylinderType );
+      m_cylinderType = t;
+      setViewStructureChanged( );
+   }
+}
+
+void PMCamera::enableFocalBlur( bool yes )
+{
+   if( yes != m_focalBlurEnabled )
+   {
+      if( m_pMemento )
+         m_pMemento->addData( s_pMetaObject, PMFocalBlurID, m_focalBlurEnabled );
+      m_focalBlurEnabled = yes;
+   }
+}
+
+void PMCamera::setAperture( double a )
+{
+   if( a < 0 )
+      kdError( PMArea ) << "Aperture < 0 in PMCylinder::setAperture\n";
+   else if( a != m_aperture )
+   {
+      if( m_pMemento )
+         m_pMemento->addData( s_pMetaObject, PMApertureID, m_aperture );
+      m_aperture = a;
+   }
+}
+
+void PMCamera::setBlurSamples( int s )
+{
+   if( s < 0 )
+      kdError( PMArea ) << "Samples < 0 in PMCylinder::setBlutSamples\n";
+   else if( s != m_blurSamples )
+   {
+      if( m_pMemento )
+         m_pMemento->addData( s_pMetaObject, PMBlurSamplesID, m_blurSamples );
+      m_blurSamples = s;
+   }
+}
+
+void PMCamera::setFocalPoint( const PMVector& v )
+{
+   if( v != m_focalPoint )
+   {
+      if( m_pMemento )
+         m_pMemento->addData( s_pMetaObject, PMFocalPointID, m_focalPoint );
+      m_focalPoint = v;
+   }
+}
+
+void PMCamera::setConfidence( double c )
+{
+   if( ( c < 0.0 ) || ( c > 1.0 ) )
+      kdError( PMArea ) << "Confidence not in [0.0 1.0] in PMCylinder::setConfidence\n";
+   else if( c != m_confidence )
+   {
+      if( m_pMemento )
+         m_pMemento->addData( s_pMetaObject, PMConfidenceID, m_confidence );
+      m_confidence = c;
+   }
+}
+
+void PMCamera::setVariance( double v )
+{
+   if( v < 0 )
+      kdError( PMArea ) << "Variance < 0 in PMCylinder::setVariance\n";
+   else if( v != m_variance )
+   {
+      if( m_pMemento )
+         m_pMemento->addData( s_pMetaObject, PMVarianceID, m_variance );
+      m_variance = v;
+   }
+}
+
+void PMCamera::setExportPovray( bool ex )
+{
+   if( m_export != ex )
+   {
+      if( m_pMemento )
+         m_pMemento->addData( s_pMetaObject, PMExportID, m_export );
+      m_export = ex;
+   }
+}
+
+PMDialogEditBase* PMCamera::editWidget( QWidget* parent ) const
+{
+   return new PMCameraEdit( parent );
+}
+
+void PMCamera::restoreMemento( PMMemento* s )
+{
+   PMMementoDataIterator it( s );
+   PMMementoData* data;
+
+   for( ; it.current( ); ++it )
+   {
+      data = it.current( );
+      if( data->objectType( ) == s_pMetaObject )
+      {
+         switch( data->valueID( ) )
+         {
+            case PMLocationID:
+               setLocation( data->vectorData( ) );
+               break;
+            case PMLookAtID:
+               setLookAt( data->vectorData( ) );
+               break;
+            case PMUpID:
+               setUp( data->vectorData( ) );
+               break;
+            case PMRightID:
+               setRight( data->vectorData( ) );
+               break;
+            case PMDirectionID:
+               setDirection( data->vectorData( ) );
+               break;
+            case PMSkyID:
+               setSky( data->vectorData( ) );
+               break;
+            case PMAngleEnabledID:
+               enableAngle( data->boolData( ) );
+               break;
+            case PMAngleID:
+               setAngle( data->doubleData( ) );
+               break;
+            case PMCameraTypeID:
+               setCameraType( ( CameraType ) data->intData( ) );
+               break;
+            case PMCylinderTypeID:
+               setCylinderType( data->intData( ) );
+               break;
+            case PMFocalBlurID:
+               enableFocalBlur( data->boolData( ) );
+               break;
+            case PMBlurSamplesID:
+               setBlurSamples( data->intData( ) );
+               break;
+            case PMFocalPointID:
+               setFocalPoint( data->vectorData( ) );
+               break;
+            case PMConfidenceID:
+               setConfidence( data->doubleData( ) );
+               break;
+            case PMVarianceID:
+               setVariance( data->doubleData( ) );
+               break;
+            case PMApertureID:
+               setAperture( data->doubleData( ) );
+               break;
+            case PMExportID:
+               setExportPovray( data->boolData( ) );
+               break;
+            default:
+               kdError( PMArea ) << "Wrong ID in PMCamera::restoreMemento\n";
+               break;
+         }
+      }
+   }
+   Base::restoreMemento( s );
+}
+
+void PMCamera::createViewStructure( )
+{
+   PMVector newUp, newRight, newDirection, tmp;
+   double upLen, rightLen;
+
+   if( !m_pViewStructure )
+   {
+      m_pViewStructure = new PMViewStructure( defaultViewStructure( ) );
+      m_pViewStructure->points( ).detach( );
+   }
+
+   PMPointArray& points = m_pViewStructure->points( );
+   calculateLookAtAngle( newRight, newUp, newDirection );
+
+   points[0] = m_lookAt;
+   points[1] = m_location;
+
+   upLen = newUp.abs( );
+   rightLen = newRight.abs( );
+   if( rightLen > upLen )
+   {
+      newUp /= rightLen;
+      newRight /= rightLen;
+      newDirection /= rightLen;
+   }
+   else
+   {
+      newUp /= upLen;
+      newRight /= upLen;
+      newDirection /= upLen;
+   }
+
+   newRight /= 2.0;
+   newUp /= 2.0;
+   tmp = m_location + newDirection;
+   points[2] = tmp - newRight + newUp;
+   points[3] = tmp - newRight - newUp;
+   points[4] = tmp + newRight - newUp;
+   points[5] = tmp + newRight + newUp;
+//   points[6] = m_location + m_sky;
+}
+
+PMViewStructure* PMCamera::defaultViewStructure( ) const
+{
+   if( !s_pDefaultViewStructure )
+   {
+      s_pDefaultViewStructure = new PMViewStructure( 6, 9 );
+      PMLineArray& lines = s_pDefaultViewStructure->lines( );
+
+      lines[0] = PMLine( 0, 1 );
+      lines[1] = PMLine( 1, 2 );
+      lines[2] = PMLine( 1, 3 );
+      lines[3] = PMLine( 1, 4 );
+      lines[4] = PMLine( 1, 5 );
+      lines[5] = PMLine( 2, 3 );
+      lines[6] = PMLine( 2, 5 );
+      lines[7] = PMLine( 3, 4 );
+      lines[8] = PMLine( 4, 5 );
+//      lines[9] = PMLine( 1, 6 );
+   }
+   return s_pDefaultViewStructure;
+}
+
+void PMCamera::controlPoints( PMControlPointList& list )
+{
+   PMControlPoint* p;
+   p = new PM3DControlPoint( m_location, PMLocationID, i18n( "Location" ) );
+   list.append( p );
+   list.append( new PM3DControlPoint( m_lookAt, PMLookAtID, i18n( "Look at" ) ) );
+}
+
+void PMCamera::controlPointsChanged( PMControlPointList& list )
+{
+   PMControlPoint* p;
+
+   for( p = list.first( ); p; p = list.next( ) )
+   {
+      if( p->changed( ) )
+      {
+         switch( p->id( ) )
+         {
+            case PMLocationID:
+               setLocation( ( ( PM3DControlPoint* ) p )->point( ) );
+               break;
+            case PMLookAtID:
+               setLookAt( ( ( PM3DControlPoint* ) p )->point( ) );
+               break;
+            default:
+               kdError( PMArea ) << "Wrong ID in PMCamera::controlPointsChanged\n";
+               break;
+         }
+      }
+   }
+}
+
+void PMCamera::calculateLookAtAngle( PMVector& right, PMVector& up, PMVector& direction )
+{
+   PMVector tmpVector;
+   double directionLen, upLen, rightLen, handedness, angle;
+
+   angle = m_angle;
+   if( m_cameraType == Perspective )
+   {
+      if( angle < 0.0 )
+         angle = angleDefault;
+      if( angle >= 180.0 )
+         angle = angleDefault;
+   }
+   else
+      angle = 90.0;
+
+   directionLen = m_direction.abs( );
+   upLen = m_up.abs( );
+   rightLen = m_right.abs( );
+
+   // for safety: if vector is null vector, use the default one
+   if( approxZero( directionLen ) )
+   {
+      direction = directionDefault;
+      directionLen = direction.abs( );
+   }
+   else
+      direction = m_direction;
+
+   if( approxZero( upLen ) )
+   {
+      up = upDefault;
+      upLen = up.abs( );
+   }
+   else
+      up = m_up;
+
+   if( approxZero( rightLen ) )
+   {
+      right = rightDefault;
+      rightLen = right.abs( );
+   }
+   else
+      right = m_right;
+
+   if( m_angleEnabled )
+   {
+      // calculate angle
+      direction /= directionLen;
+      directionLen = 0.5 * rightLen / tan( angle * M_PI / 360.0 );
+      direction *= directionLen;
+   }
+
+   // calculate handedness
+   tmpVector = PMVector::cross( up, direction );
+   handedness = PMVector::dot( tmpVector, right );
+
+   direction = m_lookAt - m_location;
+   if( approxZero( direction.abs( ) ) )
+   {
+      // Camera location and look_at point are the same
+      direction = directionDefault;
+   }
+
+   // normalize new direction
+   direction /= direction.abs( );
+
+   tmpVector = right;
+   right = PMVector::cross( m_sky, direction );
+
+   if( approxZero( right.abs( ) ) )
+      right = tmpVector;
+
+   right /= right.abs( );
+   up = PMVector::cross( direction, right );
+   direction *= directionLen;
+
+   if( handedness > 0.0 )
+      right *= rightLen;
+   else
+      right *= -rightLen;
+   up *= upLen;
+}
+
+QString PMCamera::cameraTypeToString( PMCamera::CameraType t )
+{
+   QString str( "perspective" );
+   switch( t )
+   {
+      case Perspective:
+         break;
+      case Orthographic:
+         str = "orthographic";
+         break;
+      case FishEye:
+         str = "fisheye";
+         break;
+      case UltraWideAngle:
+         str = "ultra_wide_angle";
+         break;
+      case Omnimax:
+         str = "omnimax";
+         break;
+      case Panoramic:
+         str = "panoramic";
+         break;
+      case Cylinder:
+         str = "cylinder";
+         break;
+   }
+   return str;
+}
+
+PMCamera::CameraType PMCamera::stringToCameraType( const QString& str )
+{
+   CameraType t = Perspective;
+
+   if( str == "perspective" )
+      t = Perspective;
+   else if( str == "orthographic" )
+      t = Orthographic;
+   else if( str == "fisheye" )
+      t = FishEye;
+   else if( str == "ultra_wide_angle" )
+      t = UltraWideAngle;
+   else if( str == "omnimax" )
+      t = Omnimax;
+   else if( str == "panoramic" )
+      t = Panoramic;
+   else if( str == "cylinder" )
+      t = Cylinder;
+   else
+      kdDebug( PMArea ) << "Unknown camera type\n";
+
+   return t;
+}
+
+void PMCamera::cleanUp( ) const
+{
+   if( s_pDefaultViewStructure )
+   {
+      delete s_pDefaultViewStructure;
+      s_pDefaultViewStructure = 0;
+   }
+   if( s_pMetaObject )
+   {
+      delete s_pMetaObject;
+      s_pMetaObject = 0;
+   }
+
+   Base::cleanUp( );
+}