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Qt Toolkit - qabstractlayout.h include file
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<h1 align=center>qabstractlayout.h</h1><br clear="all">
This is the verbatim text of the qabstractlayout.h include file. It is
provided only for illustration; the copyright
remains with Trolltech.
<hr>
<pre>
/****************************************************************************
** $Id: qt/src/kernel/qabstractlayout.h 2.3.2 edited 2001-01-26 $
**
** Definition of the abstract layout base class
**
** Created : 960416
**
** Copyright (C) 1992-2000 Trolltech AS. All rights reserved.
**
** This file is part of the kernel module of the Qt GUI Toolkit.
**
** This file may be distributed under the terms of the Q Public License
** as defined by Trolltech AS of Norway and appearing in the file
** LICENSE.QPL included in the packaging of this file.
**
** This file may be distributed and/or modified under the terms of the
** GNU General Public License version 2 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file.
**
** Licensees holding valid Qt Enterprise Edition or Qt Professional Edition
** licenses may use this file in accordance with the Qt Commercial License
** Agreement provided with the Software.
**
** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
**
** See http://www.trolltech.com/pricing.html or email sales@trolltech.com for
** information about Qt Commercial License Agreements.
** See http://www.trolltech.com/qpl/ for QPL licensing information.
** See http://www.trolltech.com/gpl/ for GPL licensing information.
**
** Contact info@trolltech.com if any conditions of this licensing are
** not clear to you.
**
**********************************************************************/
#ifndef QABSTRACTLAYOUT_H
#define QABSTRACTLAYOUT_H
#ifndef QT_H
#include "qobject.h"
#include "qsizepolicy.h"
#include "qwidget.h"
#endif // QT_H
#ifndef QT_NO_LAYOUT
class <a href="qmenubar.html">QMenuBar</a>;
class <a href="qwidget.html">QWidget</a>;
struct QLayoutData;
class <a href="qlayoutitem.html">QLayoutItem</a>;
class <a href="qlayout.html">QLayout</a>;
class <a href="qspaceritem.html">QSpacerItem</a>;
class <a href="qdomelement.html">QDomElement</a>;
class QConfigureLayoutEvent;
class Q_EXPORT <a href="qglayoutiterator.html">QGLayoutIterator</a> : public <a href="qshared.html">QShared</a>
{
public:
virtual ~QGLayoutIterator();
virtual QLayoutItem *next() = 0;
virtual QLayoutItem *current() = 0;
virtual QLayoutItem *takeCurrent() = 0;
};
class Q_EXPORT <a href="qlayoutiterator.html">QLayoutIterator</a>
{
public:
QLayoutIterator( QGLayoutIterator *i ) :it(i) {}
QLayoutIterator( const QLayoutIterator &i ) :it( i.it )
{ if ( it ) it->ref(); }
~QLayoutIterator() { if ( it && it->deref() ) delete it; }
QLayoutIterator &operator=( const QLayoutIterator &i )
{
if ( i.it ) i.it->ref();
if ( it && it->deref() ) delete it;
it = i.it;
return *this;
}
QLayoutItem *operator++() { return it ? it->next() : 0; }
QLayoutItem *current() { return it ? it->current() : 0; }
QLayoutItem *takeCurrent() { return it ? it->takeCurrent() : 0; }
void deleteCurrent();
private:
QGLayoutIterator *it;
};
class Q_EXPORT <a href="qlayoutitem.html">QLayoutItem</a>
{
public:
QLayoutItem( int alignment = 0 ) :align(alignment) {}
virtual ~QLayoutItem();
virtual QSize sizeHint() const = 0;
virtual QSize minimumSize() const = 0;
virtual QSize maximumSize() const = 0;
virtual QSizePolicy::ExpandData expanding() const =0;
virtual void setGeometry( const QRect& ) = 0;
virtual QRect geometry() const = 0;
virtual bool isEmpty() const = 0;
virtual bool hasHeightForWidth() const;
virtual int heightForWidth( int ) const;
virtual void invalidate();
virtual QWidget *widget();
virtual QLayoutIterator iterator();
virtual QLayout *layout();
virtual QSpacerItem *spacerItem();
int alignment() const { return align; }
virtual void setAlignment( int a );
protected:
int align;
};
class Q_EXPORT <a href="qspaceritem.html">QSpacerItem</a> : public <a href="qlayoutitem.html">QLayoutItem</a>
{
public:
QSpacerItem( int w, int h,
QSizePolicy::SizeType hData=QSizePolicy::Minimum,
QSizePolicy::SizeType vData= QSizePolicy::Minimum )
:width(w), height(h), sizeP(hData, vData )
{}
void changeSize( int w, int h,
QSizePolicy::SizeType hData=QSizePolicy::Minimum,
QSizePolicy::SizeType vData=QSizePolicy::Minimum );
QSize sizeHint() const ;
QSize minimumSize() const ;
QSize maximumSize() const ;
QSizePolicy::ExpandData expanding() const;
bool isEmpty() const;
void setGeometry( const QRect& );
QRect geometry() const;
QSpacerItem *spacerItem();
private:
int width, height;
QSizePolicy sizeP;
QRect rect;
};
class Q_EXPORT <a href="qwidgetitem.html">QWidgetItem</a> : public <a href="qlayoutitem.html">QLayoutItem</a>
{
public:
QWidgetItem( QWidget *w ) : wid(w) {}
QSize sizeHint() const ;
QSize minimumSize() const ;
QSize maximumSize() const ;
QSizePolicy::ExpandData expanding() const;
bool isEmpty() const;
void setGeometry( const QRect& ) ;
QRect geometry() const;
//void invalidate();
virtual QWidget *widget();
bool hasHeightForWidth() const;
int heightForWidth( int ) const;
const QSize &widgetSizeHint() const;
private:
//QSize cachedSizeHint;
QWidget *wid;
};
class Q_EXPORT <a href="qlayout.html">QLayout</a> : public <a href="qobject.html">QObject</a>, public <a href="qlayoutitem.html">QLayoutItem</a>
{
Q_OBJECT
Q_ENUMS( ResizeMode )
Q_PROPERTY( int margin READ margin WRITE setMargin )
Q_PROPERTY( int spacing READ spacing WRITE setSpacing )
Q_PROPERTY( ResizeMode resizeMode READ resizeMode WRITE setResizeMode )
public:
QLayout( QWidget *parent, int margin=0, int space=-1,
const char *name=0 );
QLayout( QLayout *parentLayout, int space=-1, const char *name=0 );
QLayout( int space=-1, const char *name=0 );
~QLayout();
int margin() const { return outsideBorder; }
int spacing() const { return insideSpacing; }
virtual void setMargin( int );
virtual void setSpacing( int );
enum { unlimited = QWIDGETSIZE_MAX };
#if 1 //OBSOLETE
int defaultBorder() const { return insideSpacing; }
void freeze( int w, int h );
void freeze() { setResizeMode( Fixed ); }
#endif
enum ResizeMode { FreeResize, Minimum, Fixed };
void setResizeMode( ResizeMode );
ResizeMode resizeMode() const;
#ifndef QT_NO_MENUBAR
virtual void setMenuBar( QMenuBar *w );
QMenuBar *menuBar() const { return menubar; }
#endif
QWidget *mainWidget();
bool isTopLevel() const { return topLevel; }
virtual void setAutoAdd( bool );
bool autoAdd() const { return autoNewChild; }
void invalidate();
QRect geometry() const;
bool activate();
void add( QWidget *w ) { addItem( new QWidgetItem( w ) ); }
virtual void addItem ( QLayoutItem * ) = 0;
QSizePolicy::ExpandData expanding() const;
QSize minimumSize() const;
QSize maximumSize() const;
void setGeometry( const QRect& )=0;
QLayoutIterator iterator()=0;
bool isEmpty() const;
int totalHeightForWidth( int w ) const;
QSize totalMinimumSize() const;
QSize totalMaximumSize() const;
QSize totalSizeHint() const;
QLayout *layout();
bool supportsMargin() const { return marginImpl; }
void setEnabled( bool );
bool isEnabled() const;
protected:
bool eventFilter( QObject *, QEvent * );
void addChildLayout( QLayout *l );
void deleteAllItems();
void setSupportsMargin( bool );
QRect alignmentRect( const QRect& ) const;
private:
void setWidgetLayout( QWidget *, QLayout * );
void init();
int insideSpacing;
int outsideBorder;
uint topLevel : 1;
uint autoMinimum : 1;
uint autoNewChild : 1;
uint frozen : 1;
uint activated : 1;
uint marginImpl : 1;
uint enabled : 1;
QRect rect;
QLayoutData *extraData;
#ifndef QT_NO_MENUBAR
QMenuBar *menubar;
#endif
private: // Disabled copy constructor and operator=
#if defined(Q_DISABLE_COPY)
QLayout( const QLayout & );
QLayout &operator=( const QLayout & );
#endif
};
inline void QLayoutIterator::deleteCurrent()
{
delete takeCurrent();
}
#endif //QT_NO_LAYOUT
#endif
</pre>
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<td>Copyright 2001 Trolltech<td><a href="http://www.trolltech.com/trademarks.html">Trademarks</a>
<td align="right"><div align="right">Qt version 2.3.2</div>
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