1 files changed, 89 insertions, 0 deletions
diff --git a/kpovmodeler/pmvectorcontrolpoint.cpp b/kpovmodeler/pmvectorcontrolpoint.cpp
new file mode 100644
index 00000000..0a14d0b8
--- /dev/null
+++ b/kpovmodeler/pmvectorcontrolpoint.cpp
@@ -0,0 +1,89 @@
+/*
+**************************************************************************
+                                 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 "pmvectorcontrolpoint.h"
+#include "pmmath.h"
+#include <math.h>
+
+PMVectorControlPoint::PMVectorControlPoint( PMControlPoint* base,
+                                            const PMVector& v, int id,
+                                            const QString& description,
+                                            bool extraLine, bool normalize )
+      : PMControlPoint( id, description )
+{
+   m_vector = v;
+   m_pBasePoint = base;
+   m_extraLine = extraLine;
+   m_normalize = normalize;
+}
+
+PMVectorControlPoint::PMVectorControlPoint( const PMVector& base,
+                                            const PMVector& v, int id,
+                                            const QString& description,
+                                            bool extraLine, bool normalize )
+      : PMControlPoint( id, description )
+{
+   m_vector = v;
+   m_constBasePoint = base;
+   m_pBasePoint = 0;
+   m_extraLine = extraLine;
+   m_normalize = normalize;
+}
+
+PMVector PMVectorControlPoint::position( ) const
+{
+   return basePoint( ) + m_vector;
+}
+
+PMVector PMVectorControlPoint::basePoint( ) const
+{
+   if( m_pBasePoint )
+      return m_pBasePoint->position( );
+   return m_constBasePoint;
+}
+
+void PMVectorControlPoint::graphicalChangeStarted( )
+{
+   m_originalVector = m_vector;
+}
+
+void PMVectorControlPoint::graphicalChange( const PMVector& startPoint,
+                                        const PMVector& /*viewNormal*/,
+                                        const PMVector& endPoint )
+{
+   double d;
+   
+   m_vector = m_originalVector + endPoint - startPoint;
+   if( m_normalize )
+   {
+      d = m_vector.abs( );
+      if( approxZero( d ) )
+         m_vector = m_originalVector;
+      else
+         m_vector /= d;
+   }
+}
+
+void PMVectorControlPoint::snapToGrid( )
+{
+   int i;
+   double d = moveGrid( );
+   if( !approxZero( d ) )
+      for( i = 0; i < 3; i++ )
+         m_vector[i] = rint( m_vector[i] / d ) * d;
+   setChanged( );
+}