254 lines
8.6 KiB
C++
254 lines
8.6 KiB
C++
/****************************************************************************
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**
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** Copyright (C) 2015 The Qt Company Ltd.
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** Contact: http://www.qt.io/licensing/
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**
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** This file is part of the QtCore module of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:LGPL21$
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** Commercial License Usage
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** Licensees holding valid commercial Qt licenses may use this file in
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** accordance with the commercial license agreement provided with the
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** Software or, alternatively, in accordance with the terms contained in
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** a written agreement between you and The Qt Company. For licensing terms
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** and conditions see http://www.qt.io/terms-conditions. For further
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** information use the contact form at http://www.qt.io/contact-us.
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**
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** GNU Lesser General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU Lesser
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** General Public License version 2.1 or version 3 as published by the Free
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** Software Foundation and appearing in the file LICENSE.LGPLv21 and
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** LICENSE.LGPLv3 included in the packaging of this file. Please review the
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** following information to ensure the GNU Lesser General Public License
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** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
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** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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**
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** As a special exception, The Qt Company gives you certain additional
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** rights. These rights are described in The Qt Company LGPL Exception
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#ifndef QMARGINSF_H
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#define QMARGINSF_H
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#include <qcompilerdetection.h>
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#include <QTypeInfo>
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#include <QtGlobal>
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#if QT_VERSION < QT_VERSION_CHECK(5, 3, 0)
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#include <QMargins>
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/*****************************************************************************
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QMarginsF class
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*****************************************************************************/
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class QMarginsF
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{
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public:
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Q_DECL_CONSTEXPR QMarginsF() Q_DECL_NOTHROW;
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Q_DECL_CONSTEXPR QMarginsF(qreal left, qreal top, qreal right, qreal bottom) Q_DECL_NOTHROW;
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Q_DECL_CONSTEXPR explicit QMarginsF(const QMargins &margins) Q_DECL_NOTHROW;
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Q_DECL_CONSTEXPR bool isNull() const Q_DECL_NOTHROW;
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Q_DECL_CONSTEXPR qreal left() const Q_DECL_NOTHROW;
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Q_DECL_CONSTEXPR qreal top() const Q_DECL_NOTHROW;
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Q_DECL_CONSTEXPR qreal right() const Q_DECL_NOTHROW;
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Q_DECL_CONSTEXPR qreal bottom() const Q_DECL_NOTHROW;
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void setLeft(qreal left) Q_DECL_NOTHROW;
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void setTop(qreal top) Q_DECL_NOTHROW;
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void setRight(qreal right) Q_DECL_NOTHROW;
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void setBottom(qreal bottom) Q_DECL_NOTHROW;
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QMarginsF &operator+=(const QMarginsF &margins) Q_DECL_NOTHROW;
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QMarginsF &operator-=(const QMarginsF &margins) Q_DECL_NOTHROW;
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QMarginsF &operator+=(qreal addend) Q_DECL_NOTHROW;
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QMarginsF &operator-=(qreal subtrahend) Q_DECL_NOTHROW;
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QMarginsF &operator*=(qreal factor) Q_DECL_NOTHROW;
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QMarginsF &operator/=(qreal divisor);
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Q_DECL_CONSTEXPR QMargins toMargins() const Q_DECL_NOTHROW;
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private:
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qreal m_left;
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qreal m_top;
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qreal m_right;
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qreal m_bottom;
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};
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Q_DECLARE_TYPEINFO(QMarginsF, Q_MOVABLE_TYPE);
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/*****************************************************************************
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QMarginsF stream functions
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*****************************************************************************/
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#ifndef QT_NO_DATASTREAM
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Q_CORE_EXPORT QDataStream &operator<<(QDataStream &, const QMarginsF &);
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Q_CORE_EXPORT QDataStream &operator>>(QDataStream &, QMarginsF &);
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#endif
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/*****************************************************************************
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QMarginsF inline functions
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*****************************************************************************/
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Q_DECL_CONSTEXPR inline QMarginsF::QMarginsF() Q_DECL_NOTHROW
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: m_left(0), m_top(0), m_right(0), m_bottom(0) {}
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Q_DECL_CONSTEXPR inline QMarginsF::QMarginsF(qreal aleft, qreal atop, qreal aright, qreal abottom) Q_DECL_NOTHROW
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: m_left(aleft), m_top(atop), m_right(aright), m_bottom(abottom) {}
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Q_DECL_CONSTEXPR inline QMarginsF::QMarginsF(const QMargins &margins) Q_DECL_NOTHROW
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: m_left(margins.left()), m_top(margins.top()), m_right(margins.right()), m_bottom(margins.bottom()) {}
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Q_DECL_CONSTEXPR inline bool QMarginsF::isNull() const Q_DECL_NOTHROW
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{ return qFuzzyIsNull(m_left) && qFuzzyIsNull(m_top) && qFuzzyIsNull(m_right) && qFuzzyIsNull(m_bottom); }
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Q_DECL_CONSTEXPR inline qreal QMarginsF::left() const Q_DECL_NOTHROW
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{ return m_left; }
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Q_DECL_CONSTEXPR inline qreal QMarginsF::top() const Q_DECL_NOTHROW
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{ return m_top; }
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Q_DECL_CONSTEXPR inline qreal QMarginsF::right() const Q_DECL_NOTHROW
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{ return m_right; }
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Q_DECL_CONSTEXPR inline qreal QMarginsF::bottom() const Q_DECL_NOTHROW
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{ return m_bottom; }
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inline void QMarginsF::setLeft(qreal aleft) Q_DECL_NOTHROW
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{ m_left = aleft; }
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inline void QMarginsF::setTop(qreal atop) Q_DECL_NOTHROW
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{ m_top = atop; }
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inline void QMarginsF::setRight(qreal aright) Q_DECL_NOTHROW
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{ m_right = aright; }
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inline void QMarginsF::setBottom(qreal abottom) Q_DECL_NOTHROW
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{ m_bottom = abottom; }
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Q_DECL_CONSTEXPR inline bool operator==(const QMarginsF &lhs, const QMarginsF &rhs) Q_DECL_NOTHROW
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{
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return qFuzzyCompare(lhs.left(), rhs.left())
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&& qFuzzyCompare(lhs.top(), rhs.top())
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&& qFuzzyCompare(lhs.right(), rhs.right())
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&& qFuzzyCompare(lhs.bottom(), rhs.bottom());
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}
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Q_DECL_CONSTEXPR inline bool operator!=(const QMarginsF &lhs, const QMarginsF &rhs) Q_DECL_NOTHROW
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{
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return !operator==(lhs, rhs);
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}
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Q_DECL_CONSTEXPR inline QMarginsF operator+(const QMarginsF &lhs, const QMarginsF &rhs) Q_DECL_NOTHROW
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{
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return QMarginsF(lhs.left() + rhs.left(), lhs.top() + rhs.top(),
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lhs.right() + rhs.right(), lhs.bottom() + rhs.bottom());
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}
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Q_DECL_CONSTEXPR inline QMarginsF operator-(const QMarginsF &lhs, const QMarginsF &rhs) Q_DECL_NOTHROW
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{
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return QMarginsF(lhs.left() - rhs.left(), lhs.top() - rhs.top(),
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lhs.right() - rhs.right(), lhs.bottom() - rhs.bottom());
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}
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Q_DECL_CONSTEXPR inline QMarginsF operator+(const QMarginsF &lhs, qreal rhs) Q_DECL_NOTHROW
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{
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return QMarginsF(lhs.left() + rhs, lhs.top() + rhs,
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lhs.right() + rhs, lhs.bottom() + rhs);
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}
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Q_DECL_CONSTEXPR inline QMarginsF operator+(qreal lhs, const QMarginsF &rhs) Q_DECL_NOTHROW
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{
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return QMarginsF(rhs.left() + lhs, rhs.top() + lhs,
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rhs.right() + lhs, rhs.bottom() + lhs);
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}
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Q_DECL_CONSTEXPR inline QMarginsF operator-(const QMarginsF &lhs, qreal rhs) Q_DECL_NOTHROW
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{
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return QMarginsF(lhs.left() - rhs, lhs.top() - rhs,
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lhs.right() - rhs, lhs.bottom() - rhs);
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}
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Q_DECL_CONSTEXPR inline QMarginsF operator*(const QMarginsF &lhs, qreal rhs) Q_DECL_NOTHROW
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{
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return QMarginsF(lhs.left() * rhs, lhs.top() * rhs,
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lhs.right() * rhs, lhs.bottom() * rhs);
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}
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Q_DECL_CONSTEXPR inline QMarginsF operator*(qreal lhs, const QMarginsF &rhs) Q_DECL_NOTHROW
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{
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return QMarginsF(rhs.left() * lhs, rhs.top() * lhs,
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rhs.right() * lhs, rhs.bottom() * lhs);
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}
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Q_DECL_CONSTEXPR inline QMarginsF operator/(const QMarginsF &lhs, qreal divisor)
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{
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return QMarginsF(lhs.left() / divisor, lhs.top() / divisor,
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lhs.right() / divisor, lhs.bottom() / divisor);
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}
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inline QMarginsF &QMarginsF::operator+=(const QMarginsF &margins) Q_DECL_NOTHROW
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{
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return *this = *this + margins;
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}
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inline QMarginsF &QMarginsF::operator-=(const QMarginsF &margins) Q_DECL_NOTHROW
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{
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return *this = *this - margins;
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}
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inline QMarginsF &QMarginsF::operator+=(qreal addend) Q_DECL_NOTHROW
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{
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m_left += addend;
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m_top += addend;
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m_right += addend;
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m_bottom += addend;
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return *this;
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}
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inline QMarginsF &QMarginsF::operator-=(qreal subtrahend) Q_DECL_NOTHROW
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{
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m_left -= subtrahend;
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m_top -= subtrahend;
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m_right -= subtrahend;
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m_bottom -= subtrahend;
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return *this;
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}
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inline QMarginsF &QMarginsF::operator*=(qreal factor) Q_DECL_NOTHROW
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{
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return *this = *this * factor;
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}
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inline QMarginsF &QMarginsF::operator/=(qreal divisor)
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{
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return *this = *this / divisor;
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}
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Q_DECL_CONSTEXPR inline QMarginsF operator+(const QMarginsF &margins) Q_DECL_NOTHROW
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{
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return margins;
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}
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Q_DECL_CONSTEXPR inline QMarginsF operator-(const QMarginsF &margins) Q_DECL_NOTHROW
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{
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return QMarginsF(-margins.left(), -margins.top(), -margins.right(), -margins.bottom());
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}
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Q_DECL_CONSTEXPR inline QMargins QMarginsF::toMargins() const Q_DECL_NOTHROW
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{
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return QMargins(qRound(m_left), qRound(m_top), qRound(m_right), qRound(m_bottom));
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}
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#ifndef QT_NO_DEBUG_STREAM
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Q_CORE_EXPORT QDebug operator<<(QDebug, const QMarginsF &);
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#endif
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#endif // QT_VERSION < QT_VERSION_CHECK(5, 3, 0)
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#endif // QMARGINSF_H
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