flow_widget.h

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#ifndef FLOW_WIDGET_H
#define FLOW_WIDGET_H
 
#include <QLoggingCategory>
#include <QWidget>
#include <qlogging.h>
#include <qnamespace.h>
#include <qtmetamacros.h>
 
class FlowLayout;
class QHBoxLayout;
class QKeyEvent;
class QLayoutItem;
class QScrollArea;
 
inline Q_LOGGING_CATEGORY(FlowWidgetLog, "flow_widget", QtInfoMsg);
inline Q_LOGGING_CATEGORY(FlowWidgetSizeLog, "flow_widget.size", QtInfoMsg);
 
class FlowWidget : public QWidget
{
    Q_OBJECT
 
public:
    FlowWidget(QWidget *parent,
               Qt::Orientation orientation,
               Qt::ScrollBarPolicy horizontalPolicy,
               Qt::ScrollBarPolicy verticalPolicy);
 
    void addWidget(QWidget *widget_to_add);
    void addNavigableWidget(QWidget *widget_to_add);
    void insertWidgetAtIndex(QWidget *toInsert, int index);
    void removeWidget(QWidget *widgetToRemove) const;
    void clearLayout();
 
    [[nodiscard]] int count() const;
    [[nodiscard]] QLayoutItem *itemAt(int index) const;
 
    QScrollArea *scrollArea; 
 
public slots:
    void setMinimumSizeToMaxSizeHint();
    void setSpacing(int hSpacing, int vSpacing);
 
protected:
    bool eventFilter(QObject *watched, QEvent *event) override;
    void resizeEvent(QResizeEvent *event) override;
    void keyPressEvent(QKeyEvent *event) override;
 
private:
    bool moveFocus(QKeyEvent *event);
 
    Qt::Orientation flowDirection;
    QHBoxLayout *mainLayout;
    FlowLayout *flowLayout;
    QWidget *container;
};
 
#endif // FLOW_WIDGET_H