Added functions to copy all properties between entities. (Thanks to Duncan Paterson for the patch)

refs #990

git-svn-id: http://www.openmesh.org/svnrepo/OpenMesh/trunk@675 fdac6126-5c0c-442c-9429-916003d36597

src/OpenMesh/Core/Mesh/BaseKernel.hh

@@ -440,6 +440,46 @@ public: //------------------------------------------------ copy property
 
   //@}
 
+
+public:
+  //------------------------------------------------ copy all properties
+  //@{
+
+  /** Copies all properties from one mesh element to another (of the same type)
+   *
+   * \param _vh_from A vertex handle - source
+   * \param _vh_to A vertex handle - target
+   *
+   */
+  void copy_all_properties(VertexHandle _vh_from, VertexHandle _vh_to) {
+    for( PropertyContainer::iterator p_it = vprops_.begin();
+	 p_it != vprops_.end(); ++p_it) {
+      (*p_it)->copy(_vh_from.idx(), _vh_to.idx());
+    }
+  }
+
+  void copy_all_properties(HalfedgeHandle _hh_from, HalfedgeHandle _hh_to) {
+    for( PropertyContainer::iterator p_it = hprops_.begin();
+	 p_it != hprops_.end(); ++p_it) {
+      (*p_it)->copy(_hh_from.idx(), _hh_to.idx());
+    }
+  }
+
+  void copy_all_properties(EdgeHandle _eh_from, EdgeHandle _eh_to) {
+    for( PropertyContainer::iterator p_it = eprops_.begin();
+	 p_it != eprops_.end(); ++p_it) {
+      (*p_it)->copy(_eh_from.idx(), _eh_to.idx());
+    }
+  }
+
+  void copy_all_properties(FaceHandle _fh_from, FaceHandle _fh_to) {
+    for( PropertyContainer::iterator p_it = fprops_.begin();
+	 p_it != fprops_.end(); ++p_it) {
+      (*p_it)->copy(_fh_from.idx(), _fh_to.idx());
+    }
+  }
+  //@}
+  
 protected: //------------------------------------------------- low-level access
 
 public: // used by non-native kernel and MeshIO, should be protected

src/OpenMesh/Core/Utils/BaseProperty.hh

@@ -106,6 +106,9 @@ public: // synchronized array interface
   /// Let two elements swap their storage place.
   virtual void swap(size_t _i0, size_t _i1) = 0;
 
+  /// Copy one element to another
+  virtual void copy(size_t _io, size_t _i1) = 0;
+  
   /// Return a deep copy of self.
   virtual BaseProperty* clone () const = 0;
 

src/OpenMesh/Core/Utils/Property.hh

@@ -113,6 +113,8 @@ public: // inherited from BaseProperty
   virtual void push_back()        { data_.push_back(T()); }
   virtual void swap(size_t _i0, size_t _i1)
   { std::swap(data_[_i0], data_[_i1]); }
+  virtual void copy(size_t _i0, size_t _i1)
+  { data_[_i1] = data_[_i0]; }
 
 public:
 
@@ -234,6 +236,8 @@ public: // inherited from BaseProperty
   virtual void push_back()        { data_.push_back(bool()); }
   virtual void swap(size_t _i0, size_t _i1)
   { bool t(data_[_i0]); data_[_i0]=data_[_i1]; data_[_i1]=t; }
+  virtual void copy(size_t _i0, size_t _i1)
+  { data_[_i1] = data_[_i0]; }
 
 public:
 
@@ -397,6 +401,8 @@ public: // inherited from BaseProperty
   virtual void swap(size_t _i0, size_t _i1) {
     std::swap(data_[_i0], data_[_i1]);
   }
+  virtual void copy(size_t _i0, size_t _i1)
+  { data_[_i1] = data_[_i0]; }
 
 public:
 
@@ -443,8 +449,6 @@ public:
     PropertyT<value_type>* p = new PropertyT<value_type>( *this );
     return p;
   }
-
-
 private:
 
   vector_type data_;