TikzWriter.h

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#pragma once
 
#include <ogdf/fileformats/GraphIO.h>
 
namespace ogdf {
 
class TikzWriter {
public:
    enum class LengthUnit {
        PT, 
        MM, 
        CM, 
        IN, 
        EX, 
        EM, 
        MU 
    };
 
    TikzWriter(const GraphAttributes& attr, LengthUnit unit = LengthUnit::MM)
        : m_attr(attr), m_clsAttr(nullptr), m_unit(unit), m_nodeStyles(), m_edgeStyles() { }
 
    TikzWriter(const ClusterGraphAttributes& attr, LengthUnit unit = LengthUnit::MM)
        : m_attr(attr), m_clsAttr(&attr), m_unit(unit), m_nodeStyles(), m_edgeStyles() { }
 
    bool draw(std::ostream& os);
 
private:
    void wrapHeaderFooter(std::ostream& os, std::string tikzPic, bool uniformStyle,
            bool uniformWidth, bool uniformHeight) const;
 
    void drawAllClusters(std::ostream& os);
 
    void drawAllNodes(std::ostream& os, bool uniformStyle, bool uniformWidth, bool uniformHeight);
 
    void drawAllEdges(std::ostream& os);
 
    void drawCluster(std::ostream& os, cluster c);
 
    void drawNode(std::ostream& os, node v, bool uniformStyle, bool uniformWidth, bool uniformHeight);
 
    void drawEdge(std::ostream& os, edge e);
 
    std::string getClusterStyle(cluster c) const;
 
    std::string getNodeShape(node v) const;
 
    std::string getNodeStyle(node v) const;
 
    std::string getNodeLabel(node v) const;
 
    double getTextWidth(node v) const;
 
    std::string getEdgeStyle(edge e) const;
 
    std::string getEdgeArrows(edge e) const;
 
    std::string getEdgeLabel(edge e, const DPoint& previousPoint, const DPoint& labelPoint) const;
 
    double calcArrowSize() const;
 
    std::string texLength(double f) const;
 
    std::string getLineStyle(StrokeType strokeType, double strokeWidth, Color strokeColor) const;
 
    static std::string getColorString(Color c);
 
    const GraphAttributes& m_attr;
 
    const ClusterGraphAttributes* m_clsAttr;
 
    LengthUnit m_unit;
 
    std::vector<std::string> m_nodeStyles;
 
    std::vector<std::string> m_edgeStyles;
};
 
}