| /**************************************************************************** |
| ** |
| ** Copyright (C) 2015 The Qt Company Ltd. |
| ** Contact: http://www.qt.io/licensing/ |
| ** |
| ** This file is part of the QtWidgets module of the Qt Toolkit. |
| ** |
| ** $QT_BEGIN_LICENSE:LGPL21$ |
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| ** GNU Lesser General Public License Usage |
| ** Alternatively, this file may be used under the terms of the GNU Lesser |
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| ** |
| ** As a special exception, The Qt Company gives you certain additional |
| ** rights. These rights are described in The Qt Company LGPL Exception |
| ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. |
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| ** |
| ****************************************************************************/ |
| |
| #ifndef QLAYOUT_H |
| #define QLAYOUT_H |
| |
| #include <QtCore/qobject.h> |
| #include <QtWidgets/qlayoutitem.h> |
| #include <QtWidgets/qsizepolicy.h> |
| #include <QtCore/qrect.h> |
| #include <QtCore/qmargins.h> |
| |
| #include <limits.h> |
| |
| QT_BEGIN_NAMESPACE |
| |
| |
| class QLayout; |
| class QSize; |
| |
| |
| class QLayoutPrivate; |
| |
| class Q_WIDGETS_EXPORT QLayout : public QObject, public QLayoutItem |
| { |
| Q_OBJECT |
| Q_DECLARE_PRIVATE(QLayout) |
| |
| Q_PROPERTY(int margin READ margin WRITE setMargin) |
| Q_PROPERTY(int spacing READ spacing WRITE setSpacing) |
| Q_PROPERTY(SizeConstraint sizeConstraint READ sizeConstraint WRITE setSizeConstraint) |
| public: |
| enum SizeConstraint { |
| SetDefaultConstraint, |
| SetNoConstraint, |
| SetMinimumSize, |
| SetFixedSize, |
| SetMaximumSize, |
| SetMinAndMaxSize |
| }; |
| Q_ENUM(SizeConstraint) |
| |
| QLayout(QWidget *parent); |
| QLayout(); |
| ~QLayout(); |
| |
| int margin() const; |
| int spacing() const; |
| |
| void setMargin(int); |
| void setSpacing(int); |
| |
| void setContentsMargins(int left, int top, int right, int bottom); |
| void setContentsMargins(const QMargins &margins); |
| void getContentsMargins(int *left, int *top, int *right, int *bottom) const; |
| QMargins contentsMargins() const; |
| QRect contentsRect() const; |
| |
| bool setAlignment(QWidget *w, Qt::Alignment alignment); |
| bool setAlignment(QLayout *l, Qt::Alignment alignment); |
| using QLayoutItem::setAlignment; |
| |
| void setSizeConstraint(SizeConstraint); |
| SizeConstraint sizeConstraint() const; |
| void setMenuBar(QWidget *w); |
| QWidget *menuBar() const; |
| |
| QWidget *parentWidget() const; |
| |
| void invalidate() Q_DECL_OVERRIDE; |
| QRect geometry() const Q_DECL_OVERRIDE; |
| bool activate(); |
| void update(); |
| |
| void addWidget(QWidget *w); |
| virtual void addItem(QLayoutItem *) = 0; |
| |
| void removeWidget(QWidget *w); |
| void removeItem(QLayoutItem *); |
| |
| Qt::Orientations expandingDirections() const Q_DECL_OVERRIDE; |
| QSize minimumSize() const Q_DECL_OVERRIDE; |
| QSize maximumSize() const Q_DECL_OVERRIDE; |
| virtual void setGeometry(const QRect&) Q_DECL_OVERRIDE; |
| virtual QLayoutItem *itemAt(int index) const = 0; |
| virtual QLayoutItem *takeAt(int index) = 0; |
| virtual int indexOf(QWidget *) const; |
| virtual int count() const = 0; |
| bool isEmpty() const Q_DECL_OVERRIDE; |
| QSizePolicy::ControlTypes controlTypes() const Q_DECL_OVERRIDE; |
| |
| // ### Qt 6 make this function virtual |
| QLayoutItem *replaceWidget(QWidget *from, QWidget *to, Qt::FindChildOptions options = Qt::FindChildrenRecursively); |
| |
| int totalHeightForWidth(int w) const; |
| QSize totalMinimumSize() const; |
| QSize totalMaximumSize() const; |
| QSize totalSizeHint() const; |
| QLayout *layout() Q_DECL_OVERRIDE; |
| |
| void setEnabled(bool); |
| bool isEnabled() const; |
| |
| |
| static QSize closestAcceptableSize(const QWidget *w, const QSize &s); |
| |
| protected: |
| void widgetEvent(QEvent *); |
| void childEvent(QChildEvent *e) Q_DECL_OVERRIDE; |
| void addChildLayout(QLayout *l); |
| void addChildWidget(QWidget *w); |
| bool adoptLayout(QLayout *layout); |
| |
| QRect alignmentRect(const QRect&) const; |
| protected: |
| QLayout(QLayoutPrivate &d, QLayout*, QWidget*); |
| |
| private: |
| Q_DISABLE_COPY(QLayout) |
| |
| static void activateRecursiveHelper(QLayoutItem *item); |
| |
| friend class QApplicationPrivate; |
| friend class QWidget; |
| |
| }; |
| |
| QT_END_NAMESPACE |
| |
| //### support old includes |
| #include <QtWidgets/qboxlayout.h> |
| #include <QtWidgets/qgridlayout.h> |
| |
| #endif // QLAYOUT_H |