classificationbindings.h

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#ifndef OPENSWMMVIS_UI_DIALOGS_EDITORS_CLASSIFICATIONBINDINGS_H
#define OPENSWMMVIS_UI_DIALOGS_EDITORS_CLASSIFICATIONBINDINGS_H
 
#include "render/classificationscheme.h"
 
#include <QPair>
#include <QString>
#include <QStringList>
#include <QVector>
 
#include <functional>
#include <memory>
 
class GISRasterLayer;
 
namespace OpenSWMM::Render {
class GraduatedRasterRenderer;
class GraduatedRenderer;
class IFeatureRenderer;
}
 
namespace openswmmvis::ui {
 
class IClassificationBinding
{
public:
    virtual ~IClassificationBinding() = default;
 
    // ── Core ───────────────────────────────────────────────────────────
    [[nodiscard]] virtual OpenSWMM::Render::ClassificationScheme scheme() const = 0;
    virtual void setScheme(const OpenSWMM::Render::ClassificationScheme &) = 0;
 
    [[nodiscard]] virtual QVector<double> sampleValues() const = 0;
 
    virtual void autoClassify() { setScheme(scheme()); }
 
    [[nodiscard]] virtual QPair<double, double> dataRange() const = 0;
 
    [[nodiscard]] virtual QVector<double> computedEdges() const { return {}; }
 
    // ── Optional capabilities (sensible no-op defaults) ────────────────
    [[nodiscard]] virtual bool supportsContinuousMode() const { return false; }
 
    [[nodiscard]] virtual bool supportsRangeModes() const { return false; }
 
    [[nodiscard]] virtual bool supportsCustomRange() const { return false; }
 
    [[nodiscard]] virtual QVector<QPair<QString, QString>> availableAttributes() const { return {}; }
    [[nodiscard]] virtual QString attribute() const { return {}; }
    virtual void setAttribute(const QString &) {}
};
 
// ───────────────────────────────────────────────────────────────────────
class GraduatedRendererBinding final : public IClassificationBinding
{
public:
    using RendererGetter   = std::function<OpenSWMM::Render::GraduatedRenderer *()>;
    using RendererInstaller = std::function<void(std::unique_ptr<OpenSWMM::Render::IFeatureRenderer>)>;
    using AttributeList    = std::function<QVector<QPair<QString, QString>>()>;
    using RangeModeGate    = std::function<bool()>;
 
    GraduatedRendererBinding(RendererGetter getRenderer,
                             RendererInstaller installRenderer,
                             AttributeList attributeList,
                             RangeModeGate rangeModesEnabled);
 
    void resync();
 
    OpenSWMM::Render::ClassificationScheme scheme() const override { return m_scheme; }
    void setScheme(const OpenSWMM::Render::ClassificationScheme &s) override;
    QVector<double> sampleValues() const override { return {}; } // layer samples internally
    void autoClassify() override;
    QPair<double, double> dataRange() const override;
    QVector<double> computedEdges() const override;
 
    bool supportsContinuousMode() const override { return false; }
    bool supportsRangeModes() const override { return m_rangeGate ? m_rangeGate() : false; }
    bool supportsCustomRange() const override { return false; } // range-mode combo covers it
    QVector<QPair<QString, QString>> availableAttributes() const override;
    QString attribute() const override;
    void setAttribute(const QString &name) override;
 
private:
    [[nodiscard]] OpenSWMM::Render::ClassificationScheme schemeFromRenderer() const;
 
    RendererGetter    m_get;
    RendererInstaller m_install;
    AttributeList     m_attributes;
    RangeModeGate     m_rangeGate;
    OpenSWMM::Render::ClassificationScheme m_scheme;
};
 
// ───────────────────────────────────────────────────────────────────────
class SublayerSchemeBinding final : public IClassificationBinding
{
public:
    using Getter        = std::function<OpenSWMM::Render::ClassificationScheme()>;
    using Setter        = std::function<void(const OpenSWMM::Render::ClassificationScheme &)>;
    using SampleProvider = std::function<QVector<double>()>;
    using RangeProvider  = std::function<QPair<double, double>()>;
 
    SublayerSchemeBinding(Getter getter, Setter setter,
                          SampleProvider sampleProvider, RangeProvider rangeProvider,
                          bool supportsContinuousMode, bool supportsRangeModes);
 
    OpenSWMM::Render::ClassificationScheme scheme() const override { return m_get(); }
    void setScheme(const OpenSWMM::Render::ClassificationScheme &s) override { m_set(s); }
    QVector<double> sampleValues() const override { return m_samples ? m_samples() : QVector<double>{}; }
    QPair<double, double> dataRange() const override { return m_range ? m_range() : QPair<double, double>{ 0.0, 1.0 }; }
 
    bool supportsContinuousMode() const override { return m_supportsContinuous; }
    bool supportsRangeModes() const override { return m_supportsRangeModes; }
    bool supportsCustomRange() const override { return !m_supportsRangeModes; }
 
private:
    Getter         m_get;
    Setter         m_set;
    SampleProvider m_samples;
    RangeProvider  m_range;
    bool           m_supportsContinuous = false;
    bool           m_supportsRangeModes = false;
};
 
// ───────────────────────────────────────────────────────────────────────
class RasterSchemeBinding final : public IClassificationBinding
{
public:
    explicit RasterSchemeBinding(GISRasterLayer *layer) : m_layer(layer) {}
 
    OpenSWMM::Render::ClassificationScheme scheme() const override;
    void setScheme(const OpenSWMM::Render::ClassificationScheme &s) override;
    QVector<double> sampleValues() const override;
    void autoClassify() override;
    QPair<double, double> dataRange() const override;
    QVector<double> computedEdges() const override;
 
    bool supportsContinuousMode() const override { return true; }
    bool supportsRangeModes() const override { return false; }
    bool supportsCustomRange() const override { return true; }
 
private:
    [[nodiscard]] OpenSWMM::Render::GraduatedRasterRenderer *renderer() const;
 
    GISRasterLayer *m_layer = nullptr;
};
 
} // namespace openswmmvis::ui
 
#endif // OPENSWMMVIS_UI_DIALOGS_EDITORS_CLASSIFICATIONBINDINGS_H