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/**
*
* This file is part of Tulip (https://tulip.labri.fr)
*
* Authors: David Auber and the Tulip development Team
* from LaBRI, University of Bordeaux
*
* Tulip is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License
* as published by the Free Software Foundation, either version 3
* of the License, or (at your option) any later version.
*
* Tulip is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
* See the GNU General Public License for more details.
*
*/
#ifndef _TREELEAFLAYOUT_H
#define _TREELEAFLAYOUT_H
#include <tulip/LayoutProperty.h>
/** \addtogroup layout */
/**
* \file
* \brief An implementation of a simple tree layout.
*
* This plugin is an implementation of a simple tree layout.
* All leaves are placed at a distance one (x-coordinates) and the order
* is the one of a suffix ordering. The y coordinates is the depth in the
* tree. The other nodes are placed at the center of their children
* (x-coordinates), and the y-coordinate is their depth in the tree.
*
* \note Let n be the number of nodes, the algorithm complexity is in O(n).
*
*
* \author David Auber University Bordeaux I France: Email:auber@labri.fr
*/
class OrientableLayout;
class OrientableSizeProxy;
class TreeLeaf : public tlp::LayoutAlgorithm {
public:
PLUGININFORMATION("Tree Leaf", "David Auber", "01/12/1999",
"Implements a simple level-based tree layout.<br/>"
"All leaves are placed at a distance one (x-coordinate) and the order"
" is the one of a suffix ordering. The y-coordinate is the depth in the"
" tree. The other nodes are placed at the center of their children"
" (x-coordinate), and the y-coordinate is their depth in the tree.",
"1.1", "Tree")
TreeLeaf(const tlp::PluginContext *context);
~TreeLeaf() override;
bool run() override;
private:
float minLayerSpacing;
float nodeSpacing;
bool uniformLayerDistance;
std::vector<float> levelHeights;
float dfsPlacement(tlp::Graph *tree, tlp::node n, float x, float y, unsigned int depth,
OrientableLayout *oriLayout, OrientableSizeProxy *oriSize);
void computeLevelHeights(tlp::Graph *tree, tlp::node n, unsigned int depth,
OrientableSizeProxy *oriSize);
};
#endif
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