filter_expression_edit.h

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#ifndef FILTER_EXPRESSION_EDIT_H
#define FILTER_EXPRESSION_EDIT_H
 
#include <ui/qt/widgets/filter_edit.h>
 
#include <QIcon>
#include <QList>
 
class FilterHistoryModel;
class BookmarkModel;
class AdaptiveToolButton;
 
class QAction;
class QConcatenateTablesProxyModel;
class QHBoxLayout;
class QMenu;
class QMargins;

class FilterExpressionEdit : public FilterEdit
{
    Q_OBJECT
 
public:
    explicit FilterExpressionEdit(QWidget *parent = nullptr);

    void setHistoryModel(FilterHistoryModel *model);

    FilterHistoryModel *historyModel() const { return historyModel_; }

    void setBookmarkModel(BookmarkModel *model);

    BookmarkModel *bookmarkModel() const { return bookmarkModel_; }

    void setApplyActionVisible(bool visible);

    void setAppliedExpression(const QString &expression);

    bool isApplyActionVisible() const { return apply_visible_; }

    void setPreferencesActionVisible(bool visible);

    void setBookmarkIcon(const QIcon &normal, const QIcon &matching);

    void setBookmarkMenuLabels(const QString &saved_section,
                               const QString &save_current,
                               const QString &remove_current,
                               const QString &manage,
                               const QString &preferences);

    QConcatenateTablesProxyModel *completionModel() const { return completion_source_; }

    void setButtonsLeftAligned(bool left);

    bool buttonsLeftAligned() const { return buttons_left_aligned_; }
 
signals:
    void applied(const QString &expression);
    void textChangedExpr(const QString &expression);
    void validityChanged(bool valid);
    void cleared();

    void saveBookmarkRequested(const QString &expression);
    void removeBookmarkRequested(const QString &expression);
    void manageBookmarksRequested();
    void preferencesRequested();
 
protected:
    void applyExpression();

    void changeEvent(QEvent *event) override;

    bool event(QEvent *event) override;

    void paintEvent(QPaintEvent *event) override;
 
    virtual void updateButtonTranslations();
    virtual void updateTranslations();
 
private:
    void rebuildBookmarkEntries(); 
    void populateHistoryMenu();    
    void updateClearVisible();     
    void updateApplyEnabled();     
    void updateRemoveEnabled();    
    void updateBookmarkState();    
    void updateInlineMargins();    
    void rebuildInlineLayout();    
 
    int inlineEdge() const;   
    QMargins inlineMargins(); 
 
    // Inline affordance buttons, placed by a QHBoxLayout inside the field and
    // sized by AdaptiveToolButton (tight box, zoom-aware glyph). paintEvent()
    // fences the icon zones off from the tint and anchors the dividers using
    // inlineMargins(), which mirrors the layout. Parented to this line edit
    // via the layout.
    AdaptiveToolButton *bookmark_button_; 
    AdaptiveToolButton *clear_button_;    
    AdaptiveToolButton *history_button_;  
    AdaptiveToolButton *apply_button_;    
    QHBoxLayout        *inline_layout_;   
 
    QIcon normal_bookmark_icon_;   
    QIcon matching_bookmark_icon_; 
 
    QMenu *bookmark_menu_;     
    QMenu *history_menu_;      
 
    // Static bookmark-menu actions, kept so labels/enablement can be updated.
    QAction *save_action_;
    QAction *remove_action_;
    QAction *manage_action_;
    QAction *preferences_action_;
    QAction *static_separator_;     
    QString saved_section_label_;   
    QList<QAction *> entry_actions_; 
 
    FilterHistoryModel *historyModel_; 
    BookmarkModel      *bookmarkModel_; 
    QConcatenateTablesProxyModel *completion_source_; 
 
    bool apply_visible_;         
    QString applied_expression_; 
    bool buttons_left_aligned_;  
};
 
#endif // FILTER_EXPRESSION_EDIT_H