maptooladdlink.h

Go to the documentation of this file.

 
#ifndef MAPTOOLADDLINK_H
#define MAPTOOLADDLINK_H
 
#include "map/tools/maptool.h"
#include "map/snapengine.h"
 
#include <QPointF>
#include <QString>
#include <QVector>
 
class GISRasterLayer;
class SWMMModelLayer;
 
class OpenSWMMVisMapToolAddLink : public OpenSWMMVisMapTool
{
    Q_OBJECT
 
public:
    OpenSWMMVisMapToolAddLink(MapCanvas *canvas, int linkType,
                               const QString &elementKind, QObject *parent = nullptr);
 
    [[nodiscard]] QCursor cursor() const override;
 
    void activate()   override;
    void deactivate() override;
 
    void mousePressEvent      (QMouseEvent *event) override;
    void mouseMoveEvent       (QMouseEvent *event) override;
    void mouseDoubleClickEvent(QMouseEvent *event) override;
    void keyPressEvent        (QKeyEvent   *event) override;
    void paint(QPainter *painter, const MapExtent &extent,
               const SpatialReferenceSystem *srs) override;
 
    void setTerrain(GISRasterLayer *layer, double offset, double factor = 1.0);
 
signals:
    void linkAdded(const QString &name, int linkType,
                   const QString &fromNode, const QString &toNode);
 
private:
    enum class State { Idle, Drawing };
 
    [[nodiscard]] SWMMModelLayer *activeModelLayer() const;
    [[nodiscard]] QString nextAvailableName(SWMMModelLayer *layer) const;
 
    [[nodiscard]] QString snapToNode(SWMMModelLayer *layer,
                                      double mapX, double mapY,
                                      double *snapX, double *snapY) const;
 
    void cancel();
    void commit(SWMMModelLayer *layer, const QString &toNodeName,
                double toX, double toY);
 
    int     m_linkType;
    QString m_elementKind;
 
    State              m_state      = State::Idle;
    QString            m_fromNode;
    QPointF            m_fromPt;    // map coords of from-node
    QVector<QPointF>   m_vertices;  // intermediate vertices (map coords)
    QPointF            m_cursor;    // current mouse map coords (for rubber-band)
    QString            m_snapTarget; // name of end-node currently snapped to (node-only)
    QPointF            m_snapPt;    // map coords of node snap target
    SnapEngine::Result m_vertexSnap; // general vertex snap for intermediate points
 
    GISRasterLayer    *m_terrainLayer  = nullptr;
    double             m_terrainOffset = 0.0;
    double             m_terrainFactor = 1.0;
};
 
#endif // MAPTOOLADDLINK_H