148 lines
5.5 KiB
C++
148 lines
5.5 KiB
C++
/****************************************************************************
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**
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** Copyright (C) 2016 The Qt Company Ltd.
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** Contact: https://www.qt.io/licensing/
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**
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** This file is part of the QtWidgets module of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:LGPL$
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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 https://www.qt.io/terms-conditions. For further
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** information use the contact form at https://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 3 as published by the Free Software
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** Foundation and appearing in the file LICENSE.LGPL3 included in the
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** packaging of this file. Please review the following information to
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** ensure the GNU Lesser General Public License version 3 requirements
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** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
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**
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** GNU General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU
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** General Public License version 2.0 or (at your option) the GNU General
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** Public license version 3 or any later version approved by the KDE Free
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** Qt Foundation. The licenses are as published by the Free Software
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** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
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** included in the packaging of this file. Please review the following
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** information to ensure the GNU General Public License requirements will
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** be met: https://www.gnu.org/licenses/gpl-2.0.html and
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** https://www.gnu.org/licenses/gpl-3.0.html.
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#ifndef QGRAPHICSLAYOUTITEM_H
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#define QGRAPHICSLAYOUTITEM_H
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#include <QtWidgets/qtwidgetsglobal.h>
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#include <QtCore/qscopedpointer.h>
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#include <QtWidgets/qsizepolicy.h>
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#include <QtGui/qevent.h>
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QT_REQUIRE_CONFIG(graphicsview);
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QT_BEGIN_NAMESPACE
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class QGraphicsLayoutItemPrivate;
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class QGraphicsItem;
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class Q_WIDGETS_EXPORT QGraphicsLayoutItem
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{
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public:
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QGraphicsLayoutItem(QGraphicsLayoutItem *parent = nullptr, bool isLayout = false);
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virtual ~QGraphicsLayoutItem();
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void setSizePolicy(const QSizePolicy &policy);
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void setSizePolicy(QSizePolicy::Policy hPolicy, QSizePolicy::Policy vPolicy, QSizePolicy::ControlType controlType = QSizePolicy::DefaultType);
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QSizePolicy sizePolicy() const;
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void setMinimumSize(const QSizeF &size);
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inline void setMinimumSize(qreal w, qreal h);
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QSizeF minimumSize() const;
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void setMinimumWidth(qreal width);
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inline qreal minimumWidth() const;
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void setMinimumHeight(qreal height);
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inline qreal minimumHeight() const;
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void setPreferredSize(const QSizeF &size);
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inline void setPreferredSize(qreal w, qreal h);
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QSizeF preferredSize() const;
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void setPreferredWidth(qreal width);
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inline qreal preferredWidth() const;
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void setPreferredHeight(qreal height);
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inline qreal preferredHeight() const;
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void setMaximumSize(const QSizeF &size);
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inline void setMaximumSize(qreal w, qreal h);
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QSizeF maximumSize() const;
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void setMaximumWidth(qreal width);
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inline qreal maximumWidth() const;
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void setMaximumHeight(qreal height);
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inline qreal maximumHeight() const;
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virtual void setGeometry(const QRectF &rect);
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QRectF geometry() const;
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virtual void getContentsMargins(qreal *left, qreal *top, qreal *right, qreal *bottom) const;
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QRectF contentsRect() const;
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QSizeF effectiveSizeHint(Qt::SizeHint which, const QSizeF &constraint = QSizeF()) const;
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virtual void updateGeometry();
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QGraphicsLayoutItem *parentLayoutItem() const;
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void setParentLayoutItem(QGraphicsLayoutItem *parent);
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bool isLayout() const;
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QGraphicsItem *graphicsItem() const;
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bool ownedByLayout() const;
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protected:
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void setGraphicsItem(QGraphicsItem *item);
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void setOwnedByLayout(bool ownedByLayout);
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QGraphicsLayoutItem(QGraphicsLayoutItemPrivate &dd);
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virtual QSizeF sizeHint(Qt::SizeHint which, const QSizeF &constraint = QSizeF()) const = 0;
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QScopedPointer<QGraphicsLayoutItemPrivate> d_ptr;
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private:
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QSizeF *effectiveSizeHints(const QSizeF &constraint) const;
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Q_DECLARE_PRIVATE(QGraphicsLayoutItem)
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friend class QGraphicsLayout;
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};
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#ifndef Q_CLANG_QDOC
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Q_DECLARE_INTERFACE(QGraphicsLayoutItem, "org.qt-project.Qt.QGraphicsLayoutItem")
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#endif
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inline void QGraphicsLayoutItem::setMinimumSize(qreal aw, qreal ah)
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{ setMinimumSize(QSizeF(aw, ah)); }
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inline void QGraphicsLayoutItem::setPreferredSize(qreal aw, qreal ah)
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{ setPreferredSize(QSizeF(aw, ah)); }
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inline void QGraphicsLayoutItem::setMaximumSize(qreal aw, qreal ah)
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{ setMaximumSize(QSizeF(aw, ah)); }
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inline qreal QGraphicsLayoutItem::minimumWidth() const
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{ return effectiveSizeHint(Qt::MinimumSize).width(); }
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inline qreal QGraphicsLayoutItem::minimumHeight() const
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{ return effectiveSizeHint(Qt::MinimumSize).height(); }
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inline qreal QGraphicsLayoutItem::preferredWidth() const
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{ return effectiveSizeHint(Qt::PreferredSize).width(); }
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inline qreal QGraphicsLayoutItem::preferredHeight() const
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{ return effectiveSizeHint(Qt::PreferredSize).height(); }
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inline qreal QGraphicsLayoutItem::maximumWidth() const
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{ return effectiveSizeHint(Qt::MaximumSize).width(); }
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inline qreal QGraphicsLayoutItem::maximumHeight() const
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{ return effectiveSizeHint(Qt::MaximumSize).height(); }
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QT_END_NAMESPACE
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#endif
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