maptoolidentify.h

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#ifndef MAPTOOLIDENTIFY_H
#define MAPTOOLIDENTIFY_H
 
#include "map/tools/maptool.h"
 
#include <QList>
#include <QVariantMap>
 
struct IdentifyResult
{
    QString              layerName;    
    QList<QVariantMap>   features;     
};
 
class OpenSWMMVisMapToolIdentify : public OpenSWMMVisMapTool
{
    Q_OBJECT
 
    Q_PROPERTY(double   mapTolerance READ mapTolerance WRITE setMapTolerance
               NOTIFY mapToleranceChanged)
    Q_PROPERTY(bool     queryAllLayers READ queryAllLayers WRITE setQueryAllLayers
               NOTIFY queryAllLayersChanged)
 
public:
 
    explicit OpenSWMMVisMapToolIdentify(MapCanvas *canvas, QObject *parent = nullptr);
 
    [[nodiscard]] QCursor cursor() const override;
 
    // ----- Configuration -------------------------------------------------
 
    [[nodiscard]] double mapTolerance()     const;
    void setMapTolerance(double tolerance);
 
    [[nodiscard]] bool   queryAllLayers()   const;
    void setQueryAllLayers(bool all);
 
    // ----- Tool interface ------------------------------------------------
 
    void activate()   override;
    void deactivate() override;
 
    void mousePressEvent(QMouseEvent *event) override;
 
    void paint(QPainter *painter,
               const MapExtent &canvasExtent,
               const SpatialReferenceSystem *canvasSRS) override;
 
signals:
    void mapToleranceChanged(double tolerance);
    void queryAllLayersChanged(bool all);
 
    void identifyResult(const QList<IdentifyResult> &results);
 
private:
    double  m_tolerance    = 1e-6;
    bool    m_queryAll     = true;
    double  m_lastX        = 0.0;
    double  m_lastY        = 0.0;
    bool    m_hasResult    = false;
};
 
#endif // MAPTOOLIDENTIFY_H