labelexpressiondialog.h

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#ifndef OPENSWMMVIS_UI_DIALOGS_LABELEXPRESSIONDIALOG_H
#define OPENSWMMVIS_UI_DIALOGS_LABELEXPRESSIONDIALOG_H
 
#include "render/iattributeprovider.h"
 
#include <QDialog>
#include <QString>
#include <QVariantMap>
#include <QVector>
 
class QDialogButtonBox;
class QLabel;
class QPlainTextEdit;
class QTreeWidget;
 
namespace openswmmvis::ui {
 
class LabelExpressionDialog : public QDialog
{
    Q_OBJECT
 
public:
    LabelExpressionDialog(
        const QVector<OpenSWMM::Render::AttributeField> &fields,
        const QString &initial,
        QWidget *parent = nullptr);
 
    [[nodiscard]] QString expression() const;
 
    void setSampleFeature(const QString &name, const QVariantMap &attrs);
 
    // ── Pure logic, exposed for testing ────────────────────────────────
 
    [[nodiscard]] static QString resolve(const QString &expr,
                                         const QString &name,
                                         const QVariantMap &attrs);
 
    [[nodiscard]] static QStringList unknownTokens(
        const QString &expr,
        const QVector<OpenSWMM::Render::AttributeField> &fields);
 
private:
    void insertToken(const QString &token);
    void refreshPreview();
 
    QVector<OpenSWMM::Render::AttributeField> m_fields;
    QString      m_sampleName;
    QVariantMap  m_sampleAttrs;
 
    QPlainTextEdit   *m_edit      = nullptr;
    QTreeWidget      *m_fieldTree = nullptr;
    QLabel           *m_preview   = nullptr;
    QLabel           *m_status    = nullptr;
    QDialogButtonBox *m_buttons   = nullptr;
};
 
} // namespace openswmmvis::ui
 
#endif // OPENSWMMVIS_UI_DIALOGS_LABELEXPRESSIONDIALOG_H