mapextent.h

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#ifndef MAPEXTENT_H
#define MAPEXTENT_H
 
#include <QRectF>
#include <QString>
 
class SpatialReferenceSystem;
 
class MapExtent
{
public:
 
    MapExtent() = default;
 
    MapExtent(double xMin, double yMin, double xMax, double yMax);
 
    explicit MapExtent(const QRectF &rect);
 
    // ----- Accessors -------------------------------------------------------
 
    [[nodiscard]] double xMin() const { return m_xMin; }
    [[nodiscard]] double yMin() const { return m_yMin; }
    [[nodiscard]] double xMax() const { return m_xMax; }
    [[nodiscard]] double yMax() const { return m_yMax; }
 
    [[nodiscard]] double width()  const { return m_xMax - m_xMin; }
    [[nodiscard]] double height() const { return m_yMax - m_yMin; }
    [[nodiscard]] double centerX() const { return (m_xMin + m_xMax) * 0.5; }
    [[nodiscard]] double centerY() const { return (m_yMin + m_yMax) * 0.5; }
 
    [[nodiscard]] bool isValid() const;
 
    [[nodiscard]] bool isNull() const;
 
    // ----- Conversion ------------------------------------------------------
 
    [[nodiscard]] QRectF toRectF() const;
 
    [[nodiscard]] QString toString() const;
 
    // ----- Mutators --------------------------------------------------------
 
    void setXMin(double v) { m_xMin = v; }
    void setYMin(double v) { m_yMin = v; }
    void setXMax(double v) { m_xMax = v; }
    void setYMax(double v) { m_yMax = v; }
 
    void expandToInclude(double x, double y);
 
    void expandToInclude(const MapExtent &other);
 
    void growByFactor(double factor);
 
    [[nodiscard]] MapExtent scaled(double factor) const;
 
    [[nodiscard]] MapExtent panned(double dx, double dy) const;
 
    [[nodiscard]] MapExtent intersected(const MapExtent &other) const;
 
    [[nodiscard]] MapExtent united(const MapExtent &other) const;
 
    [[nodiscard]] bool contains(double x, double y) const;
 
    [[nodiscard]] bool contains(const MapExtent &other) const;
 
    [[nodiscard]] bool intersects(const MapExtent &other) const;
 
    // ----- Operators -------------------------------------------------------
 
    bool operator==(const MapExtent &other) const;
    bool operator!=(const MapExtent &other) const;
 
private:
    double m_xMin = 0.0;
    double m_yMin = 0.0;
    double m_xMax = 0.0;
    double m_yMax = 0.0;
};
 
#endif // MAPEXTENT_H