GEOS  3.6.1
GeometryListHolder.h
1 /**********************************************************************
2  *
3  * GEOS - Geometry Engine Open Source
4  * http://geos.osgeo.org
5  *
6  * Copyright (C) 2011 Sandro Santilli <strk@keybit.net>
7  * Copyright (C) 2006 Refractions Research Inc.
8  *
9  * This is free software; you can redistribute and/or modify it under
10  * the terms of the GNU Lesser General Public Licence as published
11  * by the Free Software Foundation.
12  * See the COPYING file for more information.
13  *
14  **********************************************************************/
15 
16 #ifndef GEOS_OP_UNION_GEOMETRYLISTHOLDER_H
17 #define GEOS_OP_UNION_GEOMETRYLISTHOLDER_H
18 
19 // Forward declarations
20 namespace geos {
21  namespace geom {
22  class Geometry;
23  }
24 }
25 
26 namespace geos {
27 namespace operation { // geos::operation
28 namespace geounion { // geos::operation::geounion
29 
34 class GeometryListHolder : public std::vector<geom::Geometry*>
35 {
36 private:
37  typedef std::vector<geom::Geometry*> base_type;
38 
39 public:
42  {
43  std::for_each(ownedItems.begin(), ownedItems.end(),
44  &GeometryListHolder::deleteItem);
45  }
46 
47  // items need to be deleted in the end
48  void push_back_owned(geom::Geometry* item)
49  {
50  this->base_type::push_back(item);
51  ownedItems.push_back(item);
52  }
53 
54  geom::Geometry* getGeometry(std::size_t index)
55  {
56  if (index >= this->base_type::size())
57  return NULL;
58  return (*this)[index];
59  }
60 
61 private:
62  static void deleteItem(geom::Geometry* item);
63 
64 private:
65  std::vector<geom::Geometry*> ownedItems;
66 };
67 
68 } // namespace geos::operation::union
69 } // namespace geos::operation
70 } // namespace geos
71 
72 #endif
Basic implementation of Geometry, constructed and destructed by GeometryFactory.
Definition: Geometry.h:167
Basic namespace for all GEOS functionalities.
Definition: IndexedNestedRingTester.h:25
Helper class holding Geometries, part of which are held by reference others are held exclusively...
Definition: GeometryListHolder.h:34