dialogquerybuilder.h

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#pragma once
 
#include <QDialog>
#include <QList>
#include <QStringList>
#include "../graph/filters/filter_condition.h"
#include "../graph/filters/graph_query.h"
 
class QComboBox;
class QLineEdit;
class QPushButton;
class QVBoxLayout;
class QScrollArea;
class QRadioButton;
class QDialogButtonBox;

class DialogQueryBuilder : public QDialog
{
    Q_OBJECT
public:
    explicit DialogQueryBuilder(const QStringList &nodeKeys,
                                const QStringList &edgeKeys,
                                QWidget *parent = nullptr);
 
signals:
    void userChoices(const GraphQuery &query);
 
private slots:
    void onScopeChanged();
    void onAddRow();
    void onApply();
 
private:
    struct ConditionRow {
        QWidget     *widget   = nullptr;
        QComboBox   *keyCombo = nullptr;
        QComboBox   *opCombo  = nullptr;
        QLineEdit   *valueEdit= nullptr;
        QPushButton *removeBtn= nullptr;
    };
 
    QStringList m_nodeKeys;
    QStringList m_edgeKeys;
 
    QRadioButton    *m_nodesRadio;
    QRadioButton    *m_edgesRadio;
    QVBoxLayout     *m_rowsLayout;
    QWidget         *m_rowsContainer;
    QScrollArea     *m_scrollArea;
    QPushButton     *m_addRowBtn;
    QDialogButtonBox*m_buttonBox;
    QList<ConditionRow> m_rows;
 
    void addRow();
    void removeRow(QWidget *rowWidget);
    void repopulateKeys();
    void updateRemoveButtons();
    FilterCondition::Scope currentScope() const;
};