ext/OGDF/ogdf/packing/ComponentSplitterLayout.h

   1 /*
   2  * $Revision: 2523 $
   3  *
   4  * last checkin:
   5  *   $Author: gutwenger $
   6  *   $Date: 2012-07-02 20:59:27 +0200 (Mon, 02 Jul 2012) $
   7  ***************************************************************/
   8
   9 /** \file
  10  * \brief Splits and packs the components of a Graph.
  11  *
  12  * \author Gereon Bartel
  13  *
  14  * \par License:
  15  * This file is part of the Open Graph Drawing Framework (OGDF).
  16  *
  17  * \par
  18  * Copyright (C)<br>
  19  * See README.txt in the root directory of the OGDF installation for details.
  20  *
  21  * \par
  22  * This program is free software; you can redistribute it and/or
  23  * modify it under the terms of the GNU General Public License
  24  * Version 2 or 3 as published by the Free Software Foundation;
  25  * see the file LICENSE.txt included in the packaging of this file
  26  * for details.
  27  *
  28  * \par
  29  * This program is distributed in the hope that it will be useful,
  30  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  31  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  32  * GNU General Public License for more details.
  33  *
  34  * \par
  35  * You should have received a copy of the GNU General Public
  36  * License along with this program; if not, write to the Free
  37  * Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  38  * Boston, MA 02110-1301, USA.
  39  *
  40  * \see  http://www.gnu.org/copyleft/gpl.html
  41  ***************************************************************/
  42
  43 #ifdef _MSC_VER
  44 #pragma once
  45 #endif
  46
  47 #ifndef OGDF_COMPONENT_SPLITTER_LAYOUT_H
  48 #define OGDF_COMPONENT_SPLITTER_LAYOUT_H
  49
  50 #include <ogdf/basic/ModuleOption.h>
  51 #include <ogdf/internal/energybased/MultilevelGraph.h>
  52 #include <ogdf/module/CCLayoutPackModule.h>
  53 #include <ogdf/module/LayoutModule.h>
  54 #include <ogdf/basic/geometry.h>
  55 #include <ogdf/basic/GraphAttributes.h>
  56 #include <vector>
  57
  58
  59 namespace ogdf {
  60
  61 class OGDF_EXPORT ComponentSplitterLayout : public LayoutModule
  62 {
  63 private:
  64         ModuleOption<LayoutModule> m_secondaryLayout;
  65         ModuleOption<CCLayoutPackModule> m_packer;
  66
  67         // keeps a list of nodes for each connected component,
  68         // up to date only in call method
  69         Array<List<node> > nodesInCC;
  70         int m_numberOfComponents;
  71         double m_targetRatio;
  72         int m_minDistCC;
  73         int m_rotatingSteps;
  74         int m_border;
  75
  76         //! Combines drawings of connected components to
  77         //! a single drawing by rotating components and packing
  78         //! the result (optimizes area of axis-parallel rectangle).
  79         void reassembleDrawings(GraphAttributes &GA);
  80
  81 public:
  82         ComponentSplitterLayout();
  83
  84         void call(GraphAttributes &GA);
  85
  86         void setLayoutModule(LayoutModule *layout) {
  87                 m_secondaryLayout.set(layout);
  88         }
  89
  90         void setPacker(CCLayoutPackModule *packer) {
  91                 m_packer.set(packer);
  92         }
  93 };
  94
  95 } // namespace ogdf
  96
  97 #endif