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, 544 insertions, 0 deletions

diff --git a/kpovmodeler/pmbicubicpatch.cpp b/kpovmodeler/pmbicubicpatch.cpp
new file mode 100644
index 00000000..cbc633a9
--- /dev/null
+++ b/kpovmodeler/pmbicubicpatch.cpp
@@ -0,0 +1,544 @@
+/*
+**************************************************************************
+                                 description
+                             --------------------
+    copyright            : (C) 2001-2002 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 "pmbicubicpatch.h"
+
+#include "pmxmlhelper.h"
+#include "pmbicubicpatchedit.h"
+#include "pmmemento.h"
+#include "pmviewstructure.h"
+#include "pm3dcontrolpoint.h"
+#include "pmmath.h"
+
+#include <klocale.h>
+
+const double c_defaultPatchSize = 6.0;
+const int c_defaultPatchType = 0;
+const int c_defaultPatchUSteps = 3;
+const int c_defaultPatchVSteps = 3;
+const double c_defaultPatchFlatness = 0;
+const PMVector c_defaultUVVector0 = PMVector( 0.0, 0.0 );
+const PMVector c_defaultUVVector1 = PMVector( 1.0, 0.0 );
+const PMVector c_defaultUVVector2 = PMVector( 1.0, 1.0 );
+const PMVector c_defaultUVVector3 = PMVector( 0.0, 1.0 );
+
+PMDefinePropertyClass( PMBicubicPatch, PMBicubicPatchProperty );
+
+class PMPointProperty : public PMPropertyBase
+{
+public:
+   PMPointProperty( )
+         : PMPropertyBase( "controlPoints", PMVariant::Vector )
+   {
+      m_index = 0;
+   }
+   virtual int dimensions( ) const { return 1; }
+   virtual void setIndex( int /*dimension*/, int index )
+   {
+      if( index < 0 || index > 15 )
+         kdError( PMArea ) << "Illegal index in PMBicubicPatch::PointProperty::setIndex" << endl;
+      else
+         m_index = index;
+   }
+   virtual int size( PMObject* /*object*/, int /*dimension*/ ) const
+   {
+      return 16;
+   }
+protected:
+   virtual bool setProtected( PMObject* obj, const PMVariant& v )
+   {
+      PMBicubicPatch* p = ( PMBicubicPatch* ) obj;
+      p->setControlPoint( m_index, v.vectorData( ) );
+      return true;
+   }
+   virtual PMVariant getProtected( const PMObject* obj )
+   {
+      const PMBicubicPatch* p = ( const PMBicubicPatch* ) obj;
+      return PMVariant( p->controlPoint( m_index ) );
+   }
+
+private:
+   int m_index;
+};
+
+class PMUVVectorProperty : public PMPropertyBase
+{
+public:
+   PMUVVectorProperty( )
+         : PMPropertyBase( "uvVectors", PMVariant::Vector )
+   {
+      m_index = 0;
+   }
+   virtual int dimensions( ) const { return 1; }
+   virtual void setIndex( int /*dimension*/, int index )
+   {
+      if( index < 0 || index > 3 )
+         kdError( PMArea ) << "Illegal index in PMBicubicPatch::UVVectorProperty::setIndex" << endl;
+      else
+         m_index = index;
+   }
+   virtual int size( PMObject* /*object*/, int /*dimension*/ ) const
+   {
+      return 3;
+   }
+protected:
+   virtual bool setProtected( PMObject* obj, const PMVariant& v )
+   {
+      PMBicubicPatch* p = ( PMBicubicPatch* ) obj;
+      p->setUVVector( m_index, v.vectorData( ) );
+      return true;
+   }
+   virtual PMVariant getProtected( const PMObject* obj )
+   {
+      const PMBicubicPatch* p = ( const PMBicubicPatch* ) obj;
+      return PMVariant( p->uvVector( m_index ) );
+   }
+
+private:
+   int m_index;
+};
+
+PMMetaObject* PMBicubicPatch::s_pMetaObject = 0;
+PMObject* createNewBicubicPatch( PMPart* part )
+{
+   return new PMBicubicPatch( part );
+}
+
+PMBicubicPatch::PMBicubicPatch( PMPart* part )
+      : Base( part )
+{
+   int x, z;
+   double o = -c_defaultPatchSize / 2.0, s = c_defaultPatchSize / 3.0;
+   m_patchType = c_defaultPatchType;
+   m_numUSteps = c_defaultPatchUSteps;
+   m_numVSteps = c_defaultPatchVSteps;
+   m_flatness = c_defaultPatchFlatness;
+   for( x = 0; x < 4; x++ )
+      for( z = 0; z < 4; z++ )
+         m_point[x+z*4] = PMVector( o + s * x, 0, o + s * z );
+   m_vsUSteps = 0;
+   m_vsVSteps = 0;
+   m_uvEnabled = false;
+   m_uvVectors[0] = c_defaultUVVector0;
+   m_uvVectors[1] = c_defaultUVVector1;
+   m_uvVectors[2] = c_defaultUVVector2;
+   m_uvVectors[3] = c_defaultUVVector3;
+}
+
+PMBicubicPatch::PMBicubicPatch( const PMBicubicPatch& p )
+      : Base( p )
+{
+   int i;
+   m_patchType = p.m_patchType;
+   m_numUSteps = p.m_numUSteps;
+   m_numVSteps = p.m_numVSteps;
+   m_flatness = p.m_flatness;
+   for( i = 0; i < 16; i++ )
+      m_point[i] = p.m_point[i];
+   m_vsUSteps = 0;
+   m_vsVSteps = 0;
+   m_uvEnabled = p.m_uvEnabled;
+   for( i = 0; i < 4; ++i )
+      m_uvVectors[i] = p.m_uvVectors[i];
+}
+
+PMBicubicPatch::~PMBicubicPatch( )
+{
+}
+
+QString PMBicubicPatch::description( ) const
+{
+   return i18n( "bicubic patch" );
+}
+
+void PMBicubicPatch::serialize( QDomElement& e, QDomDocument& doc ) const
+{
+   int i;
+
+   e.setAttribute( "type", m_patchType );
+   e.setAttribute( "flatness", m_flatness );
+   e.setAttribute( "uSteps", m_numUSteps );
+   e.setAttribute( "vSteps", m_numVSteps );
+   e.setAttribute( "uvEnabled", m_uvEnabled );
+
+   for( i = 0; i < 16; i++ )
+      e.setAttribute( QString( "cp%1" ).arg( i ), m_point[i].serializeXML( ) );
+
+   for( i = 0; i < 4; ++i )
+      e.setAttribute( QString( "uv%1" ).arg( i ), m_uvVectors[i].serializeXML( ) );
+
+   Base::serialize( e, doc );
+}
+
+void PMBicubicPatch::readAttributes( const PMXMLHelper& h )
+{
+   int u, v;
+   double o = -c_defaultPatchSize / 2.0, s = c_defaultPatchSize / 3.0;
+
+   m_patchType = h.intAttribute( "type", c_defaultPatchType );
+   m_flatness = h.doubleAttribute( "flatness", c_defaultPatchFlatness );
+   m_numUSteps = h.intAttribute( "uSteps", c_defaultPatchUSteps );
+   m_numVSteps = h.intAttribute( "vSteps", c_defaultPatchVSteps );
+   m_uvEnabled = h.boolAttribute( "uvEnabled", m_uvEnabled );
+
+   for( v = 0; v < 4; v++ )
+      for( u = 0; u < 4; u++ )
+         m_point[u+v*4] = h.vectorAttribute( QString( "cp%1" ).arg( u+v*4 ),
+                                      PMVector( o + s * u, 0, o + s * v ) );
+
+   m_uvVectors[0] = h.vectorAttribute( "uv0", c_defaultUVVector0 );
+   m_uvVectors[1] = h.vectorAttribute( "uv1", c_defaultUVVector1 );
+   m_uvVectors[2] = h.vectorAttribute( "uv2", c_defaultUVVector2 );
+   m_uvVectors[3] = h.vectorAttribute( "uv3", c_defaultUVVector3 );
+
+   Base::readAttributes( h );
+}
+
+PMMetaObject* PMBicubicPatch::metaObject( ) const
+{
+   if( !s_pMetaObject )
+   {
+      s_pMetaObject = new PMMetaObject( "BicubicPatch", Base::metaObject( ),
+                                        createNewBicubicPatch );
+      s_pMetaObject->addProperty(
+         new PMBicubicPatchProperty( "patchType", &PMBicubicPatch::setPatchType,
+                         &PMBicubicPatch::patchType ) );
+      s_pMetaObject->addProperty(
+         new PMBicubicPatchProperty( "uSteps", &PMBicubicPatch::setUSteps,
+                         &PMBicubicPatch::uSteps ) );
+      s_pMetaObject->addProperty(
+         new PMBicubicPatchProperty( "vSteps", &PMBicubicPatch::setVSteps,
+                         &PMBicubicPatch::vSteps ) );
+      s_pMetaObject->addProperty(
+         new PMBicubicPatchProperty( "flatness", &PMBicubicPatch::setFlatness,
+                         &PMBicubicPatch::flatness ) );
+      s_pMetaObject->addProperty(
+         new PMBicubicPatchProperty( "uvEnabled", &PMBicubicPatch::enableUV,
+                         &PMBicubicPatch::isUVEnabled ) );
+      s_pMetaObject->addProperty( new PMPointProperty( ) );
+      s_pMetaObject->addProperty( new PMUVVectorProperty( ) );
+   }
+   return s_pMetaObject;
+}
+
+void PMBicubicPatch::cleanUp( ) const
+{
+   if( s_pMetaObject )
+   {
+      delete s_pMetaObject;
+      s_pMetaObject = 0;
+   }
+   Base::cleanUp( );
+}
+
+void PMBicubicPatch::setPatchType( int patchType )
+{
+   if( ( patchType == 0 ) || ( patchType == 1 ) )
+   {
+      if( patchType != m_patchType )
+      {
+         if( m_pMemento )
+            m_pMemento->addData( s_pMetaObject, PMTypeID, m_patchType );
+         m_patchType = patchType;
+      }
+   }
+   else
+      kdError( PMArea ) << "Wrong type in PMBicubicPatch::setPatchType( )\n";
+}
+
+void PMBicubicPatch::setFlatness( double flatness )
+{
+   if( flatness >= 0.0 )
+   {
+      if( flatness != m_flatness )
+      {
+         if( m_pMemento )
+            m_pMemento->addData( s_pMetaObject, PMFlatnessID, m_flatness );
+         m_flatness = flatness;
+      }
+   }
+   else
+      kdError( PMArea ) << "Flatness has to be >= 0 in PMBicubicPatch::setFlatness( )\n";
+}
+
+void PMBicubicPatch::setUSteps( int steps )
+{
+   if( steps >= 0 )
+   {
+      if( steps != m_numUSteps )
+      {
+         if( m_pMemento )
+            m_pMemento->addData( s_pMetaObject, PMUStepsID, m_numUSteps );
+         m_numUSteps = steps;
+         setViewStructureChanged( );
+      }
+   }
+   else
+      kdError( PMArea ) << "uSteps has to be >= 0 in PMBicubicPatch::setUSteps( )\n";
+}
+
+void PMBicubicPatch::setVSteps( int steps )
+{
+   if( steps >= 0 )
+   {
+      if( steps != m_numVSteps )
+      {
+         if( m_pMemento )
+            m_pMemento->addData( s_pMetaObject, PMVStepsID, m_numVSteps );
+         m_numVSteps = steps;
+         setViewStructureChanged( );
+      }
+   }
+   else
+      kdError( PMArea ) << "vSteps has to be >= 0 in PMBicubicPatch::setVSteps( )\n";
+}
+
+void PMBicubicPatch::setControlPoint( int i, const PMVector& p )
+{
+   if( ( i >= 0 ) && ( i <= 15 ) )
+   {
+      if( p != m_point[i] )
+      {
+         if( m_pMemento )
+            m_pMemento->addData( s_pMetaObject, PMCP0ID + i, m_point[i] );
+         m_point[i] = p;
+         setViewStructureChanged( );
+      }
+   }
+   else
+      kdError( PMArea ) << "Wrong index in PMBicubicPatch::setControlPoint( )\n";
+}
+
+PMVector PMBicubicPatch::controlPoint( int i ) const
+{
+   if( ( i >= 0 ) && ( i <= 15 ) )
+      return m_point[i];
+   else
+      kdError( PMArea ) << "Wrong index in PMBicubicPatch::controlPoint( )\n";
+   return PMVector( 0, 0, 0 );
+}
+
+void PMBicubicPatch::enableUV( bool yes )
+{
+   if( yes != m_uvEnabled )
+   {
+      if( m_pMemento )
+         m_pMemento->addData( s_pMetaObject, PMUVEnabledID, m_uvEnabled );
+      m_uvEnabled = yes;
+   }
+}
+
+void PMBicubicPatch::setUVVector( int i, const PMVector& v )
+{
+   if ( i >= 0 && i < 4 )
+   {
+      if( m_pMemento )
+         m_pMemento->addData( s_pMetaObject, PMUV0ID + i, m_uvVectors[i] );
+      m_uvVectors[i] = v;
+      m_uvVectors[i].resize( 2 );
+   }
+   else
+      kdError( PMArea ) << "Wrong index in PMBicubicPatch::setUVVector\n";
+}
+
+PMVector PMBicubicPatch::uvVector( int i ) const
+{
+   if( i >= 0 && i < 4 )
+      return m_uvVectors[i];
+   else
+      kdError( PMArea ) << "Wrong index in PMBicubicPatch::uvVector\n";
+   return PMVector( 0.0, 0.0 );
+}
+
+PMDialogEditBase* PMBicubicPatch::editWidget( QWidget* parent ) const
+{
+   return new PMBicubicPatchEdit( parent );
+}
+
+void PMBicubicPatch::restoreMemento( PMMemento* s )
+{
+   PMMementoDataIterator it( s );
+   PMMementoData* data;
+
+   for( ; it.current( ); ++it )
+   {
+      data = it.current( );
+      if( data->objectType( ) == s_pMetaObject )
+      {
+         switch( data->valueID( ) )
+         {
+            case PMTypeID:
+               setPatchType( data->intData( ) );
+               break;
+            case PMFlatnessID:
+               setFlatness( data->doubleData( ) );
+               break;
+            case PMUStepsID:
+               setUSteps( data->intData( ) );
+               break;
+            case PMVStepsID:
+               setVSteps( data->intData( ) );
+               break;
+            case PMUVEnabledID:
+               enableUV( data->boolData( ) );
+               break;
+            default:
+               if( ( data->valueID( ) >= PMCP0ID ) && ( data->valueID( ) <= PMCP15ID ) )
+                  setControlPoint( data->valueID( ) - PMCP0ID, data->vectorData( ) );
+               else if ( data->valueID( ) >= PMUV0ID && data->valueID( ) <= PMUV3ID )
+                  setUVVector( data->valueID( ) - PMUV0ID, data->vectorData( ) );
+               else
+                  kdError( PMArea ) << "Wrong ID in PMBicubicPatch::restoreMemento\n";
+               break;
+         }
+      }
+   }
+   Base::restoreMemento( s );
+}
+
+void PMBicubicPatch::createViewStructure( )
+{
+   int u, v, i, j;
+   int uSteps = m_numUSteps, vSteps = m_numVSteps;
+   if( uSteps > 5 ) uSteps = 5;
+   if( vSteps > 5 ) vSteps = 5;
+   if( uSteps < 0 ) uSteps = 0;
+   if( vSteps < 0 ) vSteps = 0;
+
+   // bugfix: Swap u and v
+   int segmentsU = pmpot( 2, vSteps );
+   int segmentsV = pmpot( 2, uSteps );
+
+   int np = ( segmentsU + 1 ) * ( segmentsV + 1 );
+   int nl = segmentsU * ( segmentsV + 1 ) + ( segmentsU + 1 ) * segmentsV;
+
+   int offset = 0;
+
+   if( !m_pViewStructure )
+   {
+      m_pViewStructure = new PMViewStructure( np, nl );
+      m_vsUSteps = uSteps + 1;
+   }
+   else
+   {
+      if( m_pViewStructure->points( ).size( ) != ( unsigned ) np )
+         m_pViewStructure->points( ).resize( np );
+      if( m_pViewStructure->lines( ).size( ) != ( unsigned ) nl )
+         m_pViewStructure->lines( ).resize( nl );
+   }
+
+   if( ( m_vsUSteps != uSteps ) || ( m_vsVSteps != vSteps ) )
+   {
+      PMLineArray& lines = m_pViewStructure->lines( );
+      int poffset = 0;
+      for( v = 0; v < ( segmentsV + 1 ); v++ )
+      {
+         for( u = 0; u < segmentsU; u++ )
+         {
+            lines[offset + u] = PMLine( poffset, poffset + 1 );
+            poffset++;
+         }
+         poffset++;
+         offset += segmentsU;
+      }
+      poffset = 0;
+      for( v = 0; v < segmentsV; v++ )
+      {
+         for( u = 0; u < ( segmentsU + 1 ); u++ )
+         {
+            lines[offset + u] = PMLine( poffset, poffset + segmentsU + 1 );
+            poffset++;
+         }
+         offset += segmentsU + 1;
+      }
+      m_vsUSteps = uSteps;
+      m_vsVSteps = vSteps;
+   }
+
+   PMPointArray& points = m_pViewStructure->points( );
+
+   offset = 0;
+   double incU = 1.0 / segmentsU;
+   double incV = 1.0 / segmentsV;
+
+   PMVector* hp[4];
+   for( v = 0; v < 4; v++ )
+      hp[v] = new PMVector[segmentsU+1];
+
+   PMVector tp[4];
+
+   double cu, cv;
+
+   // points in u direction
+   for( v = 0; v < 4; v++ )
+   {
+      for( u = 1; u < segmentsU; u++ )
+      {
+         cu = u * incU;
+
+         for( i = 0; i < 4; i++ )
+            tp[i] = m_point[v*4+i];
+         for( i = 3; i > 0; i-- )
+            for( j = 0; j < i; j++ )
+               tp[j] = tp[j] * ( 1 - cu ) + tp[j+1] * cu;
+         hp[v][u] = tp[0];
+      }
+      hp[v][0] = m_point[v*4];
+      hp[v][segmentsU] = m_point[v*4+3];
+   }
+
+   for( v = 0; v <= segmentsV; v++ )
+   {
+      cv = v * incV;
+      for( u = 0; u <= segmentsU; u++ )
+      {
+         for( i = 0; i < 4; i++ )
+            tp[i] = hp[i][u];
+         for( i = 3; i > 0; i-- )
+            for( j = 0; j < i; j++ )
+               tp[j] = tp[j] * ( 1 - cv ) + tp[j+1] * cv;
+         points[offset] = tp[0];
+         offset++;
+      }
+   }
+
+   for( v = 0; v < 4; v++ )
+      delete[] hp[v];
+}
+
+void PMBicubicPatch::controlPoints( PMControlPointList& list )
+{
+   int u, v;
+   for( v = 0; v < 4; v++ )
+      for( u = 0; u < 4; u++ )
+         list.append( new PM3DControlPoint( m_point[u+v*4], u+v*4,
+                                            i18n( "Point (%1, %2)" ).arg( u ).arg( v ) ) );
+}
+
+void PMBicubicPatch::controlPointsChanged( PMControlPointList& list )
+{
+   PMControlPoint* p;
+
+   for( p = list.first( ); p; p = list.next( ) )
+   {
+      if( p->changed( ) )
+      {
+         setControlPoint( p->id( ), p->position( ) );
+      }
+   }
+}