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/****************************************************************************
**
** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of the QtWidgets module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Digia. For licensing terms and
** conditions see http://qt.digia.com/licensing. For further information
** use the contact form at http://qt.digia.com/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, 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, Digia gives you certain additional
** rights. These rights are described in the Digia 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.
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#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_ENUMS(SizeConstraint)
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
};
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);
#ifdef Q_NO_USING_KEYWORD
inline void setAlignment(Qt::Alignment alignment) { QLayoutItem::setAlignment(alignment); }
#else
using QLayoutItem::setAlignment;
#endif
void setSizeConstraint(SizeConstraint);
SizeConstraint sizeConstraint() const;
void setMenuBar(QWidget *w);
QWidget *menuBar() const;
QWidget *parentWidget() const;
void invalidate();
QRect geometry() const;
bool activate();
void update();
void addWidget(QWidget *w);
virtual void addItem(QLayoutItem *) = 0;
void removeWidget(QWidget *w);
void removeItem(QLayoutItem *);
Qt::Orientations expandingDirections() const;
QSize minimumSize() const;
QSize maximumSize() const;
virtual void setGeometry(const QRect&);
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;
QSizePolicy::ControlTypes controlTypes() const;
int totalHeightForWidth(int w) const;
QSize totalMinimumSize() const;
QSize totalMaximumSize() const;
QSize totalSizeHint() const;
QLayout *layout();
void setEnabled(bool);
bool isEnabled() const;
static QSize closestAcceptableSize(const QWidget *w, const QSize &s);
protected:
void widgetEvent(QEvent *);
void childEvent(QChildEvent *e);
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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