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, 228 insertions, 0 deletions

diff --git a/kpovmodeler/pmsorcontrolpoint.cpp b/kpovmodeler/pmsorcontrolpoint.cpp
new file mode 100644
index 00000000..88924d05
--- /dev/null
+++ b/kpovmodeler/pmsorcontrolpoint.cpp
@@ -0,0 +1,228 @@
+/*
+**************************************************************************
+                                 description
+                             --------------------
+    copyright            : (C) 2000-2001 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 "pmsorcontrolpoint.h"
+#include "pmmath.h"
+#include <math.h>
+
+PMSorControlPoint::PMSorControlPoint( PMSorControlPoint* prev,
+                                      const PMVector& point,
+                                      PMSorControlPoint::CPType type, int id,
+                                      const QString& description )
+      : PMControlPoint( id, description )
+{
+   m_point = point;
+   m_type = type;
+   m_pPrev = prev;
+   if( m_pPrev )
+      m_pPrev->m_pNext = this;
+   m_pNext = 0;
+   m_pSorLink = 0;
+}
+
+void PMSorControlPoint::graphicalChangeStarted( )
+{
+   if( m_pPrev && !m_pPrev->m_pPrev && !m_pPrev->selected( ) )
+      m_pPrev->graphicalChangeStarted( );
+   if( m_pNext && !m_pNext->m_pNext && !m_pNext->selected( ) )
+      m_pNext->graphicalChangeStarted( );
+
+   m_original2DPoint = m_point;
+   m_originalPoint = to3D( m_point );
+}
+
+void PMSorControlPoint::graphicalChange( const PMVector& startPoint,
+                                         const PMVector& /*viewNormal*/,
+                                         const PMVector& endPoint )
+{
+   if( !m_pPrev && m_pNext->selected( ) ||
+       !m_pNext && m_pPrev->selected( ) )
+      return;
+   
+   m_point = to2D( m_originalPoint + endPoint - startPoint );
+   
+   if( m_pSorLink && m_pSorLink->selected( ) )
+   {
+      PMSorControlPoint* ll = m_pSorLink;
+      PMVector op = ll->to2D( ll->m_originalPoint + endPoint - startPoint );
+
+      if( ( m_point - m_original2DPoint ).abs( ) <
+          ( op - ll->m_original2DPoint ).abs( ) )
+         m_point = op;
+   }
+   
+   if( m_pPrev && m_pNext )
+   {
+      if( m_pPrev->m_pPrev )
+         if( ( m_point[1] - m_pPrev->m_point[1] ) < c_sorTolerance )
+            m_point[1] = m_pPrev->m_point[1] + c_sorTolerance;
+      if( m_pNext->m_pNext )
+         if( ( m_pNext->m_point[1] - m_point[1] ) < c_sorTolerance )
+            m_point[1] = m_pNext->m_point[1] - c_sorTolerance;
+   }
+   if( m_point[0] < 0.0 )
+      m_point[0] = 0.0;
+
+   if( m_pPrev && !m_pPrev->m_pPrev )
+   {
+      m_pPrev->m_point = m_point + m_pPrev->m_original2DPoint
+                         - m_original2DPoint;
+      m_pPrev->setChanged( );
+   }
+   if( m_pNext && !m_pNext->m_pNext )
+   {
+      m_pNext->m_point = m_point + m_pNext->m_original2DPoint
+                         - m_original2DPoint;
+      m_pNext->setChanged( );
+   }
+}
+
+void PMSorControlPoint::snapToGrid( )
+{
+   int i;
+   double d = moveGrid( );
+   bool diff = false;
+   PMVector change( 2 );
+   PMSorControlPoint* basePoint = 0;
+   PMSorControlPoint* linkedPoint = 0;
+   if( !m_pPrev )
+      basePoint = m_pNext;
+   if( !m_pNext )
+      basePoint = m_pPrev;
+   if( m_pPrev && !m_pPrev->m_pPrev )
+      linkedPoint = m_pPrev;
+   if( m_pNext && !m_pNext->m_pNext )
+      linkedPoint = m_pNext;
+   
+   if( basePoint && basePoint->selected( ) )
+   {
+      m_point -= basePoint->m_point;
+      diff = true;
+   }
+
+   if( !approxZero( d ) )
+   {
+      for( i = 0; i < 2; i++ )
+      {
+         change[i] = -m_point[i];
+         m_point[i] = rint( m_point[i] / d ) * d;
+         change[i] += m_point[i];
+      }
+   }
+
+   if( diff )
+      m_point += basePoint->m_point;
+
+   if( linkedPoint )
+   {
+      linkedPoint->m_point += change;
+      linkedPoint->setChanged( );
+   }
+   
+   setChanged( );
+}
+
+PMVector PMSorControlPoint::to2D( const PMVector& v ) const
+{
+   PMVector result( 2 );
+   switch( m_type )
+   {
+      case PM2DXY:
+         result[0] = v[0];
+         result[1] = v[1];
+         break;
+      case PM2DXZ:
+         result[0] = v[0];
+         result[1] = v[2];
+         break;
+      case PM2DYZ:
+         result[0] = v[1];
+         result[1] = v[2];
+         break;
+      case PM2DYX:
+         result[0] = v[1];
+         result[1] = v[0];
+         break;
+      case PM2DZX:
+         result[0] = v[2];
+         result[1] = v[0];
+         break;
+      case PM2DZY:
+         result[0] = v[2];
+         result[1] = v[1];
+         break;
+   }
+   return result;
+}
+
+PMVector PMSorControlPoint::to3D( const PMVector& vec ) const
+{
+   PMVector result( 3 );
+   switch( m_type )
+   {
+      case PM2DXY:
+         result[0] = vec[0];
+         result[1] = vec[1];
+         result[2] = 0.0;
+         break;
+      case PM2DXZ:
+         result[0] = vec[0];
+         result[1] = 0.0;
+         result[2] = vec[1];
+         break;
+      case PM2DYZ:
+         result[0] = 0.0;
+         result[1] = vec[0];
+         result[2] = vec[1];
+         break;
+      case PM2DYX:
+         result[1] = vec[0];
+         result[0] = vec[1];
+         result[2] = 0.0;
+         break;
+      case PM2DZX:
+         result[2] = vec[0];
+         result[0] = vec[1];
+         result[1] = 0.0;
+         break;
+      case PM2DZY:
+         result[2] = vec[0];
+         result[1] = vec[1];
+         result[0] = 0.0;
+         break;
+   }
+   return result;
+}
+
+bool PMSorControlPoint::hasExtraLine( ) const
+{
+   return( !m_pPrev || !m_pNext );
+}
+
+PMVector PMSorControlPoint::extraLineStart( ) const
+{
+   return position( );
+}
+
+PMVector PMSorControlPoint::extraLineEnd( ) const
+{
+   if( !m_pPrev && m_pNext )
+      return m_pNext->position( );
+   if( m_pPrev && !m_pNext )
+      return m_pPrev->position( );
+   return PMVector( 0, 0, 0 );
+}