porymap/include/ui/flowlayout.h

#ifndef FLOWLAYOUT_H
#define FLOWLAYOUT_H

#include <QLayout>
#include <QStyle>

class FlowLayout : public QLayout {
public:
    explicit FlowLayout(QWidget* parent, int margin = -1, int hSpacing = -1, int vSpacing = -1);
    explicit FlowLayout(int margin = -1, int hSpacing = -1, int vSpacing = -1);
    ~FlowLayout();

    void addItem(QLayoutItem* item) override;
    int horizontalSpacing() const;
    int verticalSpacing() const;
    Qt::Orientations expandingDirections() const override;
    bool hasHeightForWidth() const override;
    int heightForWidth(int) const override;
    int count() const override;
    QLayoutItem* itemAt(int index) const override;
    QSize minimumSize() const override;
    void setGeometry(const QRect& rect) override;
    QSize sizeHint() const override;
    QLayoutItem* takeAt(int index) override;

private:
    int doLayout(const QRect& rect, bool testOnly) const;
    int smartSpacing(QStyle::PixelMetric pm) const;

    QList<QLayoutItem*> itemList;
    int horzSpace;
    int vertSpace;
};

#endif // FLOWLAYOUT_H