flowlayout.h

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/* Original work Copyright (C) 2016 The Qt Company Ltd.
 * Modified work Copyright (C) 2018 - Brad Parker
 */

/* bparker: Removed C++11 override keyword from original source
 * Changed QList to QVector
 */

#ifndef FLOWLAYOUT_H
#define FLOWLAYOUT_H

#include <QLayout>
#include <QRect>
#include <QStyle>

class ThumbnailWidget;

class FlowLayout : public QLayout
{
 Q_OBJECT
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);
 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 addWidgetDeferred(QPointer<ThumbnailWidget> widget);

signals:
 void signalAddWidgetDeferred(QPointer<ThumbnailWidget> widget);

private slots:
 void onAddWidgetDeferred(QPointer<ThumbnailWidget> widget);

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

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

#endif // FLOWLAYOUT_H