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/*
TikZiT - a GUI diagram editor for TikZ
Copyright (C) 2018 Aleks Kissinger
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 3 of the License, or
(at your option) any later version.
This program 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.
You should have received a copy of the GNU General Public License
along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
/*!
* A graph defined by tikz code.
*/
#ifndef GRAPH_H
#define GRAPH_H
#include "node.h"
#include "edge.h"
#include "graphelementdata.h"
#include <QObject>
#include <QVector>
#include <QMultiHash>
#include <QRectF>
#include <QString>
class Graph : public QObject
{
Q_OBJECT
public:
explicit Graph(QObject *parent = 0);
~Graph();
void addNode(Node *n);
void addNode(Node *n, int index);
void removeNode(Node *n);
void addEdge(Edge *e);
void addEdge(Edge *e, int index);
void removeEdge(Edge *e);
int maxIntName();
QRectF boundsForNodes(QSet<Node*> ns);
QString freshNodeName();
/*!
* \brief renameApart assigns fresh names to all of the nodes in "this",
* with respect to the given graph
* \param graph
*/
void renameApart(Graph *graph);
GraphElementData *data() const;
void setData(GraphElementData *data);
const QVector<Node *> &nodes();
const QVector<Edge*> &edges();
QRectF bbox() const;
void setBbox(const QRectF &bbox);
bool hasBbox();
void clearBbox();
/*!
* \brief realBbox computes the union of the user-defined
* bounding box, and the bounding boxes of the graph's
* contents.
*
* \return
*/
QRectF realBbox();
QString tikz();
/*!
* \brief copyOfSubgraphWithNodes produces a copy of the full subgraph
* with the given nodes. Used for cutting and copying to clipboard.
* \param nds
* \return
*/
Graph *copyOfSubgraphWithNodes(QSet<Node*> nds);
/*!
* \brief insertGraph inserts the given graph into "this". Prior to calling this
* method, the node names in the given graph should be made fresh via
* "renameApart". Note that the parameter "graph" relinquishes ownership of its
* nodes and edges, so it should be not be allowed to exist longer than "this".
* \param graph
*/
void insertGraph(Graph *graph);
/*!
* \brief reflectNodes flips the given set of nodes horizontally or vertically,
* depending on the value of the second parameter.
* \param nds a set of nodes to flip
* \param horizontal a boolean determining whether to flip horizontally or
* vertically
*/
void reflectNodes(QSet<Node*> nds, bool horizontal);
/*!
* \brief rotateNodes rotates the given set of nodes clockwise or counter-clockwise,
* depending on the value of the second parameter.
* \param nds a set of nodes to flip
* \param clockwose a boolean determining whether to rotate clockwise or counter-clockwise
*/
void rotateNodes(QSet<Node*> nds, bool clockwise);
signals:
public slots:
private:
QVector<Node*> _nodes;
QVector<Edge*> _edges;
//QMultiHash<Node*,Edge*> inEdges;
//QMultiHash<Node*,Edge*> outEdges;
GraphElementData *_data;
QRectF _bbox;
};
#endif // GRAPH_H
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