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45 lines
1.2 KiB
C
45 lines
1.2 KiB
C
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// Copyright (C) 2016 The Qt Company Ltd.
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// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
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#ifndef FLOWLAYOUT_H
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#define FLOWLAYOUT_H
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#include <QGraphicsLayout>
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class FlowLayout : public QGraphicsLayout
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{
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public:
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FlowLayout(QGraphicsLayoutItem *parent = nullptr);
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inline void addItem(QGraphicsLayoutItem *item);
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void insertItem(int index, QGraphicsLayoutItem *item);
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void setSpacing(Qt::Orientations o, qreal spacing);
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qreal spacing(Qt::Orientation o) const;
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// inherited functions
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void setGeometry(const QRectF &geom) override;
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int count() const override;
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QGraphicsLayoutItem *itemAt(int index) const override;
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void removeAt(int index) override;
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protected:
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QSizeF sizeHint(Qt::SizeHint which, const QSizeF &constraint = QSizeF()) const override;
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private:
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qreal doLayout(const QRectF &geom, bool applyNewGeometry) const;
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QSizeF minSize(const QSizeF &constraint) const;
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QSizeF prefSize() const;
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QSizeF maxSize() const;
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QList<QGraphicsLayoutItem *> m_items;
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qreal m_spacing[2] = {6, 6};
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};
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inline void FlowLayout::addItem(QGraphicsLayoutItem *item)
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{
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insertItem(-1, item);
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}
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#endif // FLOWLAYOUT_H
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