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#pragma once

#include <QObject>
#include <QLayout>
#include <QRect>
#include <QWidgetItem>
#include <QStyle>

#if QT_VERSION >= 0x050000
#include <QtWidgets>
#else
#include <QtGui>
#endif

class FlowLayout : public QLayout
{
    Q_OBJECT
public:
    FlowLayout(QWidget *parent, int margin = 0, int hSpacing = 0, int vSpacing = 0);
    FlowLayout(int margin = 0, int hSpacing = 0, int vSpacing = 0);
    ~FlowLayout();

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

    void place(QWidget *on, QWidget *what);

    bool moveRight(QLayoutItem*);
    bool moveLeft (QLayoutItem*);

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

    QList<QLayoutItem *> itemList;
    int m_hSpace;
    int m_vSpace;
};
