qt5base-lts/examples/widgets/graphicsview/flowlayout/flowlayout.h
Lucie Gérard 05fc3aef53 Use SPDX license identifiers
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Task-number: QTBUG-67283
Change-Id: Id880c92784c40f3bbde861c0d93f58151c18b9f1
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
Reviewed-by: Lars Knoll <lars.knoll@qt.io>
Reviewed-by: Jörg Bornemann <joerg.bornemann@qt.io>
2022-05-16 16:37:38 +02:00

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1.1 KiB
C++

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