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156 lines
5.7 KiB
156 lines
5.7 KiB
15 years ago
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/****************************************************************************
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**
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** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
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** All rights reserved.
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** Contact: Nokia Corporation (qt-info@nokia.com)
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**
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** This file is part of the QtGui module of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:LGPL$
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** Commercial Usage
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** Licensees holding valid Qt Commercial licenses may use this file in
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** accordance with the Qt 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 Nokia.
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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 as published by the Free Software
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** Foundation and appearing in the file LICENSE.LGPL 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 2.1 requirements
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** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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**
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** In addition, as a special exception, Nokia gives you certain additional
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** rights. These rights are described in the Nokia Qt 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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** 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 3.0 as published by the Free Software
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** Foundation and appearing in the file LICENSE.GPL included in the
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** packaging of this file. Please review the following information to
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** ensure the GNU General Public License version 3.0 requirements will be
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** met: http://www.gnu.org/copyleft/gpl.html.
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**
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** If you have questions regarding the use of this file, please contact
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** Nokia at qt-info@nokia.com.
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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 <QtCore/qscopedpointer.h>
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#include <QtGui/qsizepolicy.h>
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#include <QtGui/qevent.h>
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QT_BEGIN_HEADER
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QT_BEGIN_NAMESPACE
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QT_MODULE(Gui)
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#if !defined(QT_NO_GRAPHICSVIEW) || (QT_EDITION & QT_MODULE_GRAPHICSVIEW) != QT_MODULE_GRAPHICSVIEW
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class QGraphicsLayoutItemPrivate;
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class QGraphicsItem;
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class Q_GUI_EXPORT QGraphicsLayoutItem
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{
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public:
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QGraphicsLayoutItem(QGraphicsLayoutItem *parent = 0, 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(); //### rename to sizeHintChanged()
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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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// ###Qt5: Make automatic reparenting work regardless of item/object/widget type.
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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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Q_DECLARE_INTERFACE(QGraphicsLayoutItem, "com.trolltech.Qt.QGraphicsLayoutItem")
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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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#endif
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QT_END_NAMESPACE
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QT_END_HEADER
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#endif
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