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// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
#ifndef QLAYOUT_H
#define QLAYOUT_H
#include <QtWidgets/qtwidgetsglobal.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 spacing READ spacing WRITE setSpacing)
Q_PROPERTY(QMargins contentsMargins READ contentsMargins WRITE setContentsMargins
RESET unsetContentsMargins)
Q_PROPERTY(SizeConstraint sizeConstraint READ sizeConstraint WRITE setSizeConstraint)
public:
enum SizeConstraint {
SetDefaultConstraint,
SetNoConstraint,
SetMinimumSize,
SetFixedSize,
SetMaximumSize,
SetMinAndMaxSize
};
Q_ENUM(SizeConstraint)
explicit QLayout(QWidget *parent = nullptr);
~QLayout();
virtual int spacing() const;
virtual void setSpacing(int);
void setContentsMargins(int left, int top, int right, int bottom);
void setContentsMargins(const QMargins &margins);
void unsetContentsMargins();
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() override;
QRect geometry() const 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 override;
QSize minimumSize() const override;
QSize maximumSize() const override;
virtual void setGeometry(const QRect&) override;
virtual QLayoutItem *itemAt(int index) const = 0;
virtual QLayoutItem *takeAt(int index) = 0;
virtual int indexOf(const QWidget *) const;
virtual int indexOf(const QLayoutItem *) const;
virtual int count() const = 0;
bool isEmpty() const override;
QSizePolicy::ControlTypes controlTypes() const override;
virtual QLayoutItem *replaceWidget(QWidget *from, QWidget *to,
Qt::FindChildOptions options = Qt::FindChildrenRecursively);
int totalMinimumHeightForWidth(int w) const;
int totalHeightForWidth(int w) const;
QSize totalMinimumSize() const;
QSize totalMaximumSize() const;
QSize totalSizeHint() const;
QLayout *layout() override;
void setEnabled(bool);
bool isEnabled() const;
static QSize closestAcceptableSize(const QWidget *w, const QSize &s);
protected:
void widgetEvent(QEvent *);
void childEvent(QChildEvent *e) 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
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