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| ** |
| ** Copyright (C) 2015 The Qt Company Ltd. |
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| ** This file is part of the QtWidgets module of the Qt Toolkit. |
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| |
| #ifndef QGRAPHICSLAYOUTITEM_H |
| #define QGRAPHICSLAYOUTITEM_H |
| |
| #include <QtCore/qscopedpointer.h> |
| #include <QtWidgets/qsizepolicy.h> |
| #include <QtGui/qevent.h> |
| |
| QT_BEGIN_NAMESPACE |
| |
| |
| #if !defined(QT_NO_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(); |
| |
| QGraphicsLayoutItem *parentLayoutItem() const; |
| void setParentLayoutItem(QGraphicsLayoutItem *parent); |
| |
| bool isLayout() const; |
| 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, "org.qt-project.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 |
| |
| #endif |