maptoolmovenode.h

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#ifndef MAPTOOLMOVENODE_H
#define MAPTOOLMOVENODE_H
 
#include "map/tools/maptool.h"
 
#include <QPoint>
#include <QPointF>
#include <QString>
 
class SWMMModelLayer;
 
class OpenSWMMVisMapToolMoveNode : public OpenSWMMVisMapTool
{
    Q_OBJECT
 
public:
    explicit OpenSWMMVisMapToolMoveNode(MapCanvas *canvas, 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 mouseReleaseEvent(QMouseEvent *event) override;
    void keyPressEvent(QKeyEvent *event) override;
 
signals:
    void nodeMoved(const QString &nodeName, double newX, double newY,
                   int autoLengthedCount);
 
private:
    struct NodeHit {
        SWMMModelLayer *layer    = nullptr;
        int             nodeIdx  = -1;
        QString         nodeName;
        bool            isGage   = false;
        bool valid() const { return layer && nodeIdx >= 0; }
    };
 
    NodeHit pickNode(const QPoint &pixel) const;
 
    void applyDragPreview(double mapX, double mapY);
 
    void cancelDragPreview();
 
    bool               m_dragging  = false;
    SWMMModelLayer    *m_layer     = nullptr;
    int                m_nodeIdx   = -1;
    QString            m_nodeName;
    bool               m_isGage    = false;
 
    // Pre-drag map-CRS coord (for Escape / cancel rollback).
    double             m_originalMapX = 0.0;
    double             m_originalMapY = 0.0;
};
 
#endif // MAPTOOLMOVENODE_H