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Diffstat (limited to 'src/widgets/graphicsview/qgraphicslayoutitem.h')
| -rw-r--r-- | src/widgets/graphicsview/qgraphicslayoutitem.h | 155 |
1 files changed, 155 insertions, 0 deletions
diff --git a/src/widgets/graphicsview/qgraphicslayoutitem.h b/src/widgets/graphicsview/qgraphicslayoutitem.h new file mode 100644 index 0000000000..c617959a06 --- /dev/null +++ b/src/widgets/graphicsview/qgraphicslayoutitem.h @@ -0,0 +1,155 @@ +/**************************************************************************** +** +** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the QtGui module of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** GNU Lesser General Public License Usage +** This file may be used under the terms of the GNU Lesser General Public +** License version 2.1 as published by the Free Software Foundation and +** appearing in the file LICENSE.LGPL included in the packaging of this +** file. Please review the following information to ensure the GNU Lesser +** General Public License version 2.1 requirements will be met: +** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. +** +** In addition, as a special exception, Nokia gives you certain additional +** rights. These rights are described in the Nokia Qt LGPL Exception +** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU General +** Public License version 3.0 as published by the Free Software Foundation +** and appearing in the file LICENSE.GPL included in the packaging of this +** file. Please review the following information to ensure the GNU General +** Public License version 3.0 requirements will be met: +** http://www.gnu.org/copyleft/gpl.html. +** +** Other Usage +** Alternatively, this file may be used in accordance with the terms and +** conditions contained in a signed written agreement between you and Nokia. +** +** +** +** +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef QGRAPHICSLAYOUTITEM_H +#define QGRAPHICSLAYOUTITEM_H + +#include <QtCore/qscopedpointer.h> +#include <QtWidgets/qsizepolicy.h> +#include <QtGui/qevent.h> + +QT_BEGIN_HEADER + +QT_BEGIN_NAMESPACE + +QT_MODULE(Gui) + +#if !defined(QT_NO_GRAPHICSVIEW) || (QT_EDITION & QT_MODULE_GRAPHICSVIEW) != QT_MODULE_GRAPHICSVIEW + +class QGraphicsLayoutItemPrivate; +class QGraphicsItem; +class Q_WIDGETS_EXPORT QGraphicsLayoutItem +{ +public: + QGraphicsLayoutItem(QGraphicsLayoutItem *parent = 0, bool isLayout = false); + virtual ~QGraphicsLayoutItem(); + + void setSizePolicy(const QSizePolicy &policy); + void setSizePolicy(QSizePolicy::Policy hPolicy, QSizePolicy::Policy vPolicy, QSizePolicy::ControlType controlType = QSizePolicy::DefaultType); + QSizePolicy sizePolicy() const; + + void setMinimumSize(const QSizeF &size); + inline void setMinimumSize(qreal w, qreal h); + QSizeF minimumSize() const; + void setMinimumWidth(qreal width); + inline qreal minimumWidth() const; + void setMinimumHeight(qreal height); + inline qreal minimumHeight() const; + + void setPreferredSize(const QSizeF &size); + inline void setPreferredSize(qreal w, qreal h); + QSizeF preferredSize() const; + void setPreferredWidth(qreal width); + inline qreal preferredWidth() const; + void setPreferredHeight(qreal height); + inline qreal preferredHeight() const; + + void setMaximumSize(const QSizeF &size); + inline void setMaximumSize(qreal w, qreal h); + QSizeF maximumSize() const; + void setMaximumWidth(qreal width); + inline qreal maximumWidth() const; + void setMaximumHeight(qreal height); + inline qreal maximumHeight() const; + + virtual void setGeometry(const QRectF &rect); + QRectF geometry() const; + virtual void getContentsMargins(qreal *left, qreal *top, qreal *right, qreal *bottom) const; + QRectF contentsRect() const; + + QSizeF effectiveSizeHint(Qt::SizeHint which, const QSizeF &constraint = QSizeF()) const; + + virtual void updateGeometry(); //### rename to sizeHintChanged() + + QGraphicsLayoutItem *parentLayoutItem() const; + void setParentLayoutItem(QGraphicsLayoutItem *parent); + + bool isLayout() const; + // ###Qt5: Make automatic reparenting work regardless of item/object/widget type. + QGraphicsItem *graphicsItem() const; + bool ownedByLayout() const; + +protected: + void setGraphicsItem(QGraphicsItem *item); + void setOwnedByLayout(bool ownedByLayout); + QGraphicsLayoutItem(QGraphicsLayoutItemPrivate &dd); + + virtual QSizeF sizeHint(Qt::SizeHint which, const QSizeF &constraint = QSizeF()) const = 0; + QScopedPointer<QGraphicsLayoutItemPrivate> d_ptr; + +private: + QSizeF *effectiveSizeHints(const QSizeF &constraint) const; + Q_DECLARE_PRIVATE(QGraphicsLayoutItem) + + friend class QGraphicsLayout; +}; + +Q_DECLARE_INTERFACE(QGraphicsLayoutItem, "com.trolltech.Qt.QGraphicsLayoutItem") + +inline void QGraphicsLayoutItem::setMinimumSize(qreal aw, qreal ah) +{ setMinimumSize(QSizeF(aw, ah)); } +inline void QGraphicsLayoutItem::setPreferredSize(qreal aw, qreal ah) +{ setPreferredSize(QSizeF(aw, ah)); } +inline void QGraphicsLayoutItem::setMaximumSize(qreal aw, qreal ah) +{ setMaximumSize(QSizeF(aw, ah)); } + +inline qreal QGraphicsLayoutItem::minimumWidth() const +{ return effectiveSizeHint(Qt::MinimumSize).width(); } +inline qreal QGraphicsLayoutItem::minimumHeight() const +{ return effectiveSizeHint(Qt::MinimumSize).height(); } + +inline qreal QGraphicsLayoutItem::preferredWidth() const +{ return effectiveSizeHint(Qt::PreferredSize).width(); } +inline qreal QGraphicsLayoutItem::preferredHeight() const +{ return effectiveSizeHint(Qt::PreferredSize).height(); } + +inline qreal QGraphicsLayoutItem::maximumWidth() const +{ return effectiveSizeHint(Qt::MaximumSize).width(); } +inline qreal QGraphicsLayoutItem::maximumHeight() const +{ return effectiveSizeHint(Qt::MaximumSize).height(); } + +#endif + +QT_END_NAMESPACE + +QT_END_HEADER + +#endif |