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, 468 insertions, 0 deletions

diff --git a/kpovmodeler/pmblobcylinder.cpp b/kpovmodeler/pmblobcylinder.cpp
new file mode 100644
index 00000000..687ce132
--- /dev/null
+++ b/kpovmodeler/pmblobcylinder.cpp
@@ -0,0 +1,468 @@
+/*
+**************************************************************************
+                                 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 "pmblobcylinder.h"
+
+#include "pmxmlhelper.h"
+#include "pmboxedit.h"
+#include "pmmemento.h"
+#include "pm3dcontrolpoint.h"
+#include "pmdefaults.h"
+#include "pmdistancecontrolpoint.h"
+#include "pmblobcylinderedit.h"
+
+#include <klocale.h>
+
+PMDefinePropertyClass( PMBlobCylinder, PMBlobCylinderProperty );
+
+PMMetaObject* PMBlobCylinder::s_pMetaObject = 0;
+PMObject* createNewBlobCylinder( PMPart* part )
+{
+   return new PMBlobCylinder( part );
+}
+
+const double c_defaultRadius = 0.5;
+const PMVector c_defaultEnd1 = PMVector ( 0, 0.5, 0 );
+const PMVector c_defaultEnd2 = PMVector ( 0, -0.5, 0 );
+const double c_defaultStrength = 1.0;
+
+/** default cylinder structure */
+PMViewStructure* PMBlobCylinder::s_pDefaultViewStructure = 0;
+int PMBlobCylinder::s_vStep = c_defaultBlobCylinderVSteps;
+int PMBlobCylinder::s_uStep = c_defaultBlobCylinderUSteps;
+int PMBlobCylinder::s_parameterKey = 0;
+
+
+PMBlobCylinder::PMBlobCylinder( PMPart* part )
+      : Base( part )
+{
+   m_end1 = c_defaultEnd1;
+   m_end2 = c_defaultEnd2;
+   m_radius = c_defaultRadius;
+   m_strength = c_defaultStrength;
+}
+
+PMBlobCylinder::PMBlobCylinder( const PMBlobCylinder& c )
+      : Base( c )
+{
+   m_end1 = c.m_end1;
+   m_end2 = c.m_end2;
+   m_radius = c.m_radius;
+   m_strength = c.m_strength;
+}
+
+PMBlobCylinder::~PMBlobCylinder( )
+{
+}
+
+QString PMBlobCylinder::description( ) const
+{
+   return i18n( "blob cylinder" );
+}
+
+void PMBlobCylinder::serialize( QDomElement& e, QDomDocument& doc ) const
+{
+   e.setAttribute( "end_a", m_end1.serializeXML( ) );
+   e.setAttribute( "end_b", m_end2.serializeXML( ) );
+   e.setAttribute( "radius", m_radius );
+   e.setAttribute( "strength", m_strength );
+   Base::serialize( e, doc );
+}
+
+void PMBlobCylinder::readAttributes( const PMXMLHelper& h )
+{
+   m_end1 = h.vectorAttribute( "end_a", c_defaultEnd1 );
+   m_end2 = h.vectorAttribute( "end_b", c_defaultEnd2 );
+   m_radius = h.doubleAttribute( "radius", c_defaultRadius );
+   m_strength = h.doubleAttribute( "strength", c_defaultStrength );
+   Base::readAttributes( h );
+}
+
+PMMetaObject* PMBlobCylinder::metaObject( ) const
+{
+   if( !s_pMetaObject )
+   {
+      s_pMetaObject = new PMMetaObject( "BlobCylinder", Base::metaObject( ),
+                                        createNewBlobCylinder );
+      s_pMetaObject->addProperty(
+         new PMBlobCylinderProperty( "end1", &PMBlobCylinder::setEnd1,
+                         &PMBlobCylinder::end1 ) );
+      s_pMetaObject->addProperty(
+         new PMBlobCylinderProperty( "end2", &PMBlobCylinder::setEnd2,
+                         &PMBlobCylinder::end2 ) );
+      s_pMetaObject->addProperty(
+         new PMBlobCylinderProperty( "radius", &PMBlobCylinder::setRadius,
+                         &PMBlobCylinder::radius ) );
+      s_pMetaObject->addProperty(
+         new PMBlobCylinderProperty( "strength", &PMBlobCylinder::setStrength,
+                         &PMBlobCylinder::strength ) );
+   }
+   return s_pMetaObject;
+}
+
+void PMBlobCylinder::setEnd1( const PMVector& p )
+{
+   if( p != m_end1 )
+   {
+      if( m_pMemento )
+         m_pMemento->addData( s_pMetaObject, PMEnd1ID, m_end1 );
+      m_end1 = p;
+      m_end1.resize( 3 );
+      setViewStructureChanged( );
+   }
+}
+
+void PMBlobCylinder::setEnd2( const PMVector& p )
+{
+   if( p != m_end2 )
+   {
+      if( m_pMemento )
+         m_pMemento->addData( s_pMetaObject, PMEnd2ID, m_end2 );
+      m_end2 = p;
+      m_end2.resize( 3 );
+      setViewStructureChanged( );
+   }
+}
+
+void PMBlobCylinder::setRadius( double radius )
+{
+   if( m_radius != radius )
+   {
+      if( m_pMemento )
+        m_pMemento->addData( s_pMetaObject, PMRadiusID, m_radius );
+      m_radius = radius;
+      setViewStructureChanged( );
+   }
+}
+
+void PMBlobCylinder::setStrength( double s )
+{
+   if( s != m_strength )
+   {
+      if( m_pMemento )
+         m_pMemento->addData( s_pMetaObject, PMStrengthID, m_strength );
+      m_strength = s;
+   }
+}
+
+PMDialogEditBase* PMBlobCylinder::editWidget( QWidget* parent ) const
+{
+   return new PMBlobCylinderEdit( parent );
+}
+
+void PMBlobCylinder::restoreMemento( PMMemento* s )
+{
+   PMMementoDataIterator it( s );
+   PMMementoData* data;
+
+   for( ; it.current( ); ++it )
+   {
+      data = it.current( );
+      if( data->objectType( ) == s_pMetaObject )
+      {
+         switch( data->valueID( ) )
+         {
+            case PMEnd1ID:
+               setEnd1( data->vectorData( ) );
+               break;
+            case PMEnd2ID:
+               setEnd2( data->vectorData( ) );
+               break;
+            case PMRadiusID:
+               setRadius( data->doubleData( ) );
+               break;
+            case PMStrengthID:
+               setStrength( data->doubleData( ) );
+               break;
+            default:
+               kdError( PMArea ) << "Wrong ID in PMBlobCylinder::restoreMemento\n";
+               break;
+         }
+      }
+   }
+   Base::restoreMemento( s );
+}
+
+bool PMBlobCylinder::isDefault( )
+{
+   if( ( m_end1 == c_defaultEnd1 ) && ( m_end2 == c_defaultEnd2 )
+       && ( m_radius == c_defaultRadius )
+       && globalDetail( ) )
+      return true;
+   return false;
+}
+
+void PMBlobCylinder::createViewStructure( )
+{
+   if( !m_pViewStructure )
+   {
+      m_pViewStructure = new PMViewStructure( defaultViewStructure ( ) );
+      m_pViewStructure->points( ).detach( );
+   }
+
+   int uStep = (int)( ( (float)s_uStep / 2 ) * ( displayDetail( ) + 1 ) );
+   int vStep = (int)( ( (float)s_vStep / 2 ) * ( displayDetail( ) + 1 ) );
+   unsigned ptsSize = vStep * uStep * 2 + 2;
+   unsigned lineSize = vStep * uStep * 4 + vStep;
+
+   if( ptsSize != m_pViewStructure->points( ).size( ) )
+      m_pViewStructure->points( ).resize( ptsSize );
+
+   createPoints( m_pViewStructure->points( ), m_end1, m_end2, m_radius, uStep, vStep );
+
+   if( lineSize != m_pViewStructure->lines( ).size( ) )
+   {
+      m_pViewStructure->lines( ).detach( );
+      m_pViewStructure->lines( ).resize( lineSize );
+      createLines( m_pViewStructure->lines( ), uStep, vStep );
+   }
+}
+
+PMViewStructure* PMBlobCylinder::defaultViewStructure( ) const
+{
+   if( !s_pDefaultViewStructure || s_pDefaultViewStructure->parameterKey( ) != viewStructureParameterKey( ) )
+   {
+      delete s_pDefaultViewStructure;
+      s_pDefaultViewStructure = 0;
+      int uStep = (int)( ( (float)s_uStep / 2 ) * ( displayDetail( ) + 1 ) );
+      int vStep = (int)( ( (float)s_vStep / 2 ) * ( displayDetail( ) + 1 ) );
+
+      s_pDefaultViewStructure =
+         new PMViewStructure( vStep * uStep * 2 + 2,
+                              vStep * uStep * 4 + vStep );
+
+      createPoints( s_pDefaultViewStructure->points( ), c_defaultEnd1,
+                    c_defaultEnd2, c_defaultRadius, uStep, vStep );
+
+      createLines( s_pDefaultViewStructure->lines( ), uStep, vStep );
+   }
+   return s_pDefaultViewStructure;
+}
+
+void PMBlobCylinder::createLines( PMLineArray& lines, int uStep, int vStep )
+{
+   int u, v;
+   int offset = 0;
+
+   // horizontal lines
+   for( u = 0; u < ( uStep * 2 ); u++ )
+   {
+      for( v = 0; v < ( vStep - 1 ); v++ )
+         lines[offset + v] =
+            PMLine( u * vStep + v + 1, u * vStep + v + 2 );
+      lines[offset + vStep - 1] =
+         PMLine( u * vStep + 1, u * vStep + vStep );
+
+      offset += vStep;
+   }
+
+   // vertical lines
+   // lines at the "north pole"
+   for( v = 0; v < vStep; v++ )
+      lines[offset + v] = PMLine( 0, v + 1 );
+   offset += vStep;
+
+   for( v = 0; v < vStep; v++ )
+   {
+      for( u = 0; u < ( 2 * uStep - 1 ); u++ )
+      {
+         lines[offset + u] =
+            PMLine( u * vStep + v + 1, ( u + 1 ) * vStep + v + 1 );
+      }
+      offset += ( 2 * uStep - 1 );
+   }
+   // lines at the "south pole"
+   for( v = 0; v < vStep; v++ )
+      lines[offset + v] = PMLine( ( 2 * uStep - 1 ) * vStep + v + 1,
+                                    2 * uStep * vStep + 1 );
+   // offset += vStep;
+}
+
+void PMBlobCylinder::createPoints( PMPointArray& points, const PMVector& end1,
+                                   const PMVector& end2, double radius, int uStep, int vStep )
+{
+   double uRadStep = M_PI / uStep / 2.0;
+   double vRadStep = 2 * M_PI / vStep;
+   double du = uRadStep;
+
+   if( radius < 0 )
+      radius = -radius;
+
+   PMVector pointAt = end2 - end1;
+   double pl = pointAt.abs( );
+   if( approxZero( pl ) )
+      pointAt = PMVector( 0.0, 0.0, 1.0 );
+   else
+      pointAt /= pl;
+
+   PMMatrix rotation = PMMatrix::rotation( pointAt, vRadStep );
+   PMVector ortho = pointAt.orthogonal( );
+   ortho /= ortho.abs( );
+
+   points[0] = PMPoint( end1 - pointAt * radius );
+   points[vStep * uStep * 2 + 1] = PMPoint( end2 + pointAt * radius );
+
+   int u, v;
+   for( u = 0; u < uStep; u++ )
+   {
+      PMVector end = ortho * radius * sin( du );
+      PMVector pv = pointAt * radius * cos( du );
+      PMVector e1 = end1 - pv;
+      PMVector e2 = end2 + pv;
+
+      for( v = 0; v < vStep; v++ )
+      {
+         points[u * vStep + v + 1] = PMPoint( e1 + end );
+         points[vStep * uStep * 2 - ( u + 1 ) * vStep + v + 1]
+            = PMPoint( e2 + end );
+         end = rotation * end;
+      }
+      du += uRadStep;
+   }
+}
+
+void PMBlobCylinder::controlPoints( PMControlPointList & list )
+{
+   PMVector center, angle1, angle2;
+   center = m_end1 - m_end2;
+   double pl = center.abs( );
+   if( approxZero( pl ) )
+      center = PMVector( 0.0, 1.0, 0.0 );
+   else
+      center /= pl;
+
+   angle1 = center.orthogonal( );
+   angle2 = PMVector::cross( center, angle1 );
+
+   PM3DControlPoint* pb = new PM3DControlPoint( m_end1, PMEnd1ID, i18n( "End 1" ) );
+   list.append( pb );
+   list.append( new PM3DControlPoint( m_end2, PMEnd2ID, i18n( "End 2" ) ) );
+   list.append( new PMDistanceControlPoint( pb, angle1, m_radius, PMRadiusID, i18n( "Radius (1)" ) ) );
+   list.append( new PMDistanceControlPoint( pb, angle2, m_radius, PMRadiusID, i18n( "Radius (2)" ) ) );
+}
+
+
+void PMBlobCylinder::controlPointsChanged( PMControlPointList & list )
+{
+   PMControlPoint* p;
+   bool pointChanged = false;
+   bool radiusChanged = false;
+
+   for( p = list.first( ); p; p = list.next( ) )
+   {
+      if( p->changed( ) )
+      {
+         switch( p->id( ) )
+         {
+            case PMEnd1ID:
+               setEnd1( ( ( PM3DControlPoint *) p)->point( ) );
+               pointChanged = true;
+               break;
+            case PMEnd2ID:
+               setEnd2( ( ( PM3DControlPoint *) p)->point( ) );
+               pointChanged = true;
+               break;
+            case PMRadiusID:
+               setRadius( ( ( PMDistanceControlPoint *) p)->distance( ) );
+               radiusChanged = true;
+               break;
+            default:
+               kdError( PMArea ) << "Wrong ID in PMBlobCylinder::controlPointsChanged\n";
+               break;
+         }
+      }
+   }
+
+   if( pointChanged )
+   {
+      PMVector center, angle1, angle2;
+      bool firstPoint = true;
+
+      center = m_end1 - m_end2;
+      double pl = center.abs( );
+      if( approxZero( pl ) )
+         center = PMVector( 0.0, 1.0, 0.0 );
+      else
+        center /= pl;
+
+      angle1 = center.orthogonal( );
+      angle2 = PMVector::cross( center, angle1 );
+
+      for( p = list.first( ); p; p = list.next( ) )
+         if( p->id( ) == PMRadiusID )
+         {
+            if( firstPoint )
+            {
+               ( ( PMDistanceControlPoint *) p)->setDirection( angle1 );
+               firstPoint = false;
+            }
+            else
+               ( ( PMDistanceControlPoint *) p)->setDirection( angle2 );
+         }
+    }
+
+   if( radiusChanged )
+     for( p = list.first( ); p; p = list.next( ) )
+        if( p->id( ) == PMRadiusID )
+           ( ( PMDistanceControlPoint *) p)->setDistance( m_radius );
+}
+
+void PMBlobCylinder::setUSteps( int u )
+{
+   if( u >= 2 )
+   {
+      s_uStep = u;
+      if( s_pDefaultViewStructure )
+      {
+         delete s_pDefaultViewStructure;
+         s_pDefaultViewStructure = 0;
+      }
+   }
+   else
+      kdDebug( PMArea ) << "PMBlobCylinder::setUSteps: U must be greater than 1\n";
+   s_parameterKey++;
+}
+
+void PMBlobCylinder::setVSteps( int v )
+{
+   if( v >= 4 )
+   {
+      s_vStep = v;
+      if( s_pDefaultViewStructure )
+      {
+         delete s_pDefaultViewStructure;
+         s_pDefaultViewStructure = 0;
+      }
+   }
+   else
+      kdDebug( PMArea ) << "PMBlobCylinder::setVSteps: V must be greater than 3\n";
+   s_parameterKey++;
+}
+
+void PMBlobCylinder::cleanUp( ) const
+{
+   if( s_pDefaultViewStructure )
+      delete s_pDefaultViewStructure;
+   s_pDefaultViewStructure = 0;
+   if( s_pMetaObject )
+   {
+      delete s_pMetaObject;
+      s_pMetaObject = 0;
+   }
+   Base::cleanUp( );
+}