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<p>This is the verbatim text of the ntqlayout.h include file. It is provided only for illustration; the copyright remains with Trolltech.
<hr>
<pre>
/****************************************************************************
** $Id: qt/ntqlayout.h 3.3.8 edited Jan 11 14:38 $
**
** Definition of layout classes
**
** Created : 960416
**
** Copyright (C) 1992-2007 Trolltech ASA. All rights reserved.
**
** This file is part of the kernel module of the TQt GUI Toolkit.
**
** This file may be used under the terms of the GNU General Public
** License versions 2.0 or 3.0 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file. Alternatively you may (at your option) use any
** later version of the GNU General Public License if such license has
** been publicly approved by Trolltech ASA (or its successors, if any)
** and the KDE Free TQt Foundation.
**
** Please review the following information to ensure GNU General
** Public Licensing requirements will be met:
** http://trolltech.com/products/qt/licenses/licensing/opensource/.
** If you are unsure which license is appropriate for your use, please
** review the following information:
** http://trolltech.com/products/qt/licenses/licensing/licensingoverview
** or contact the sales department at sales@trolltech.com.
**
** This file may be used under the terms of the Q Public License as
** defined by Trolltech ASA and appearing in the file LICENSE.TQPL
** included in the packaging of this file. Licensees holding valid TQt
** Commercial licenses may use this file in accordance with the TQt
** Commercial License Agreement provided with the Software.
**
** This file is provided "AS IS" with NO WARRANTY OF ANY KIND,
** INCLUDING THE WARRANTIES OF DESIGN, MERCHANTABILITY AND FITNESS FOR
** A PARTICULAR PURPOSE. Trolltech reserves all rights not granted
** herein.
**
**********************************************************************/
#ifndef TQLAYOUT_H
#define TQLAYOUT_H
#ifndef QT_H
#include "ntqobject.h"
#include "ntqsizepolicy.h"
#include "ntqwidget.h"
#endif // QT_H
#include <limits.h>
#ifndef QT_NO_LAYOUT
#if 0
TQ_OBJECT
#endif
static const int TQLAYOUTSIZE_MAX = INT_MAX/256/16;
class TQGridLayoutBox;
class TQGridLayoutData;
class TQLayout;
class TQLayoutItem;
struct TQLayoutData;
class TQMenuBar;
class TQSpacerItem;
class TQWidget;
class Q_EXPORT TQGLayoutIterator : public TQShared
{
public:
virtual ~TQGLayoutIterator();
virtual TQLayoutItem *next() = 0;
virtual TQLayoutItem *current() = 0;
virtual TQLayoutItem *takeCurrent() = 0;
};
class Q_EXPORT TQLayoutIterator
{
public:
TQLayoutIterator( TQGLayoutIterator *i ) : it( i ) { }
TQLayoutIterator( const TQLayoutIterator &i ) : it( i.it ) {
if ( it )
it->ref();
}
~TQLayoutIterator() { if ( it && it->deref() ) delete it; }
TQLayoutIterator &operator=( const TQLayoutIterator &i ) {
if ( i.it )
i.it->ref();
if ( it && it->deref() )
delete it;
it = i.it;
return *this;
}
TQLayoutItem *operator++() { return it ? it->next() : 0; }
TQLayoutItem *current() { return it ? it->current() : 0; }
TQLayoutItem *takeCurrent() { return it ? it->takeCurrent() : 0; }
void deleteCurrent();
private:
TQGLayoutIterator *it;
};
class Q_EXPORT TQLayoutItem
{
public:
TQLayoutItem( int alignment = 0 ) : align( alignment ) { }
virtual ~TQLayoutItem();
virtual TQSize sizeHint() const = 0;
virtual TQSize minimumSize() const = 0;
virtual TQSize maximumSize() const = 0;
virtual TQSizePolicy::ExpandData expanding() const = 0;
virtual void setGeometry( const TQRect& ) = 0;
virtual TQRect geometry() const = 0;
virtual bool isEmpty() const = 0;
virtual bool hasHeightForWidth() const;
virtual int heightForWidth( int ) const;
// ### add minimumHeightForWidth( int ) in TQt 4.0
virtual void invalidate();
virtual TQWidget *widget();
virtual TQLayoutIterator iterator();
virtual TQLayout *layout();
virtual TQSpacerItem *spacerItem();
int alignment() const { return align; }
virtual void setAlignment( int a );
protected:
int align;
};
class Q_EXPORT TQSpacerItem : public TQLayoutItem
{
public:
TQSpacerItem( int w, int h,
TQSizePolicy::SizeType hData = TQSizePolicy::Minimum,
TQSizePolicy::SizeType vData = TQSizePolicy::Minimum )
: width( w ), height( h ), sizeP( hData, vData ) { }
void changeSize( int w, int h,
TQSizePolicy::SizeType hData = TQSizePolicy::Minimum,
TQSizePolicy::SizeType vData = TQSizePolicy::Minimum );
TQSize sizeHint() const;
TQSize minimumSize() const;
TQSize maximumSize() const;
TQSizePolicy::ExpandData expanding() const;
bool isEmpty() const;
void setGeometry( const TQRect& );
TQRect geometry() const;
TQSpacerItem *spacerItem();
private:
int width;
int height;
TQSizePolicy sizeP;
TQRect rect;
};
class Q_EXPORT TQWidgetItem : public TQLayoutItem
{
public:
TQWidgetItem( TQWidget *w ) : wid( w ) { }
TQSize sizeHint() const;
TQSize minimumSize() const;
TQSize maximumSize() const;
TQSizePolicy::ExpandData expanding() const;
bool isEmpty() const;
void setGeometry( const TQRect& );
TQRect geometry() const;
virtual TQWidget *widget();
bool hasHeightForWidth() const;
int heightForWidth( int ) const;
private:
TQWidget *wid;
};
class Q_EXPORT TQLayout : public TQObject, public TQLayoutItem
{
TQ_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:
// ### TQt 4.0: put 'Auto' first in enum
enum ResizeMode { FreeResize, Minimum, Fixed, Auto };
TQLayout( TQWidget *parent, int margin = 0, int spacing = -1,
const char *name = 0 );
TQLayout( TQLayout *parentLayout, int spacing = -1, const char *name = 0 );
TQLayout( int spacing = -1, const char *name = 0 );
~TQLayout();
int margin() const { return outsideBorder; }
int spacing() const { return insideSpacing; }
virtual void setMargin( int );
virtual void setSpacing( int );
int defaultBorder() const { return insideSpacing; }
void freeze( int w, int h );
void freeze() { setResizeMode( Fixed ); }
void setResizeMode( ResizeMode );
ResizeMode resizeMode() const;
#ifndef QT_NO_MENUBAR
virtual void setMenuBar( TQMenuBar *w );
TQMenuBar *menuBar() const { return menubar; }
#endif
TQWidget *mainWidget();
bool isTopLevel() const { return topLevel; }
virtual void setAutoAdd( bool );
bool autoAdd() const { return autoNewChild; }
void invalidate();
TQRect geometry() const;
bool activate();
void add( TQWidget *w ) { addItem( new TQWidgetItem(w) ); }
virtual void addItem( TQLayoutItem * ) = 0;
void remove( TQWidget *w );
void removeItem( TQLayoutItem * );
TQSizePolicy::ExpandData expanding() const;
TQSize minimumSize() const;
TQSize maximumSize() const;
void setGeometry( const TQRect& ) = 0;
TQLayoutIterator iterator() = 0;
bool isEmpty() const;
int totalHeightForWidth( int w ) const;
TQSize totalMinimumSize() const;
TQSize totalMaximumSize() const;
TQSize totalSizeHint() const;
TQLayout *layout();
bool supportsMargin() const { return marginImpl; }
void setEnabled( bool );
bool isEnabled() const;
protected:
bool eventFilter( TQObject *, TQEvent * );
void childEvent( TQChildEvent *e );
void addChildLayout( TQLayout *l );
void deleteAllItems();
void setSupportsMargin( bool );
TQRect alignmentRect( const TQRect& ) const;
private:
void setWidgetLayout( TQWidget *, TQLayout * );
void init();
int insideSpacing;
int outsideBorder;
uint topLevel : 1;
uint enabled : 1;
uint autoNewChild : 1;
uint frozen : 1;
uint activated : 1;
uint marginImpl : 1;
uint autoMinimum : 1;
uint autoResizeMode : 1;
TQRect rect;
TQLayoutData *extraData;
#ifndef QT_NO_MENUBAR
TQMenuBar *menubar;
#endif
private:
#if defined(TQ_DISABLE_COPY)
TQLayout( const TQLayout & );
TQLayout &operator=( const TQLayout & );
#endif
static void propagateSpacing( TQLayout *layout );
};
inline void TQLayoutIterator::deleteCurrent()
{
delete takeCurrent();
}
class Q_EXPORT TQGridLayout : public TQLayout
{
TQ_OBJECT
public:
TQGridLayout( TQWidget *parent, int nRows = 1, int nCols = 1, int border = 0,
int spacing = -1, const char *name = 0 );
TQGridLayout( int nRows = 1, int nCols = 1, int spacing = -1,
const char *name = 0 );
TQGridLayout( TQLayout *parentLayout, int nRows = 1, int nCols = 1,
int spacing = -1, const char *name = 0 );
~TQGridLayout();
TQSize sizeHint() const;
TQSize minimumSize() const;
TQSize maximumSize() const;
// ### remove 'virtual' in 4.0 (or add 'virtual' to set{Row,Col}Spacing())
virtual void setRowStretch( int row, int stretch );
virtual void setColStretch( int col, int stretch );
int rowStretch( int row ) const;
int colStretch( int col ) const;
void setRowSpacing( int row, int minSize );
void setColSpacing( int col, int minSize );
int rowSpacing( int row ) const;
int colSpacing( int col ) const;
int numRows() const;
int numCols() const;
TQRect cellGeometry( int row, int col ) const;
bool hasHeightForWidth() const;
int heightForWidth( int ) const;
int minimumHeightForWidth( int ) const;
TQSizePolicy::ExpandData expanding() const;
void invalidate();
void addItem( TQLayoutItem * );
void addItem( TQLayoutItem *item, int row, int col );
void addMultiCell( TQLayoutItem *, int fromRow, int toRow,
int fromCol, int toCol, int align = 0 );
void addWidget( TQWidget *, int row, int col, int align = 0 );
void addMultiCellWidget( TQWidget *, int fromRow, int toRow,
int fromCol, int toCol, int align = 0 );
void addLayout( TQLayout *layout, int row, int col);
void addMultiCellLayout( TQLayout *layout, int fromRow, int toRow,
int fromCol, int toCol, int align = 0 );
void addRowSpacing( int row, int minsize );
void addColSpacing( int col, int minsize );
void expand( int rows, int cols );
enum Corner { TopLeft, TopRight, BottomLeft, BottomRight };
void setOrigin( Corner );
Corner origin() const;
TQLayoutIterator iterator();
void setGeometry( const TQRect& );
protected:
bool findWidget( TQWidget* w, int *r, int *c );
void add( TQLayoutItem*, int row, int col );
private:
#if defined(TQ_DISABLE_COPY)
TQGridLayout( const TQGridLayout & );
TQGridLayout &operator=( const TQGridLayout & );
#endif
void init( int rows, int cols );
TQGridLayoutData *data;
};
class TQBoxLayoutData;
class TQDockWindow;
class Q_EXPORT TQBoxLayout : public TQLayout
{
TQ_OBJECT
public:
enum Direction { LeftToRight, RightToLeft, TopToBottom, BottomToTop,
Down = TopToBottom, Up = BottomToTop };
TQBoxLayout( TQWidget *parent, Direction, int border = 0, int spacing = -1,
const char *name = 0 );
TQBoxLayout( TQLayout *parentLayout, Direction, int spacing = -1,
const char *name = 0 );
TQBoxLayout( Direction, int spacing = -1, const char *name = 0 );
~TQBoxLayout();
void addItem( TQLayoutItem * );
Direction direction() const { return dir; }
void setDirection( Direction );
void addSpacing( int size );
void addStretch( int stretch = 0 );
void addWidget( TQWidget *, int stretch = 0, int alignment = 0 );
void addLayout( TQLayout *layout, int stretch = 0 );
void addStrut( int );
void insertSpacing( int index, int size );
void insertStretch( int index, int stretch = 0 );
void insertWidget( int index, TQWidget *widget, int stretch = 0,
int alignment = 0 );
void insertLayout( int index, TQLayout *layout, int stretch = 0 );
bool setStretchFactor( TQWidget*, int stretch );
bool setStretchFactor( TQLayout *l, int stretch );
TQSize sizeHint() const;
TQSize minimumSize() const;
TQSize maximumSize() const;
bool hasHeightForWidth() const;
int heightForWidth( int ) const;
int minimumHeightForWidth( int ) const;
TQSizePolicy::ExpandData expanding() const;
void invalidate();
TQLayoutIterator iterator();
void setGeometry( const TQRect& );
int findWidget( TQWidget* w );
protected:
void insertItem( int index, TQLayoutItem * );
private:
friend class TQDockWindow;
#if defined(TQ_DISABLE_COPY)
TQBoxLayout( const TQBoxLayout & );
TQBoxLayout &operator=( const TQBoxLayout & );
#endif
void setupGeom();
void calcHfw( int );
TQBoxLayoutData *data;
Direction dir;
TQBoxLayout *createTmpCopy();
};
class Q_EXPORT TQHBoxLayout : public TQBoxLayout
{
TQ_OBJECT
public:
TQHBoxLayout( TQWidget *parent, int border = 0,
int spacing = -1, const char *name = 0 );
TQHBoxLayout( TQLayout *parentLayout,
int spacing = -1, const char *name = 0 );
TQHBoxLayout( int spacing = -1, const char *name = 0 );
~TQHBoxLayout();
private: // Disabled copy constructor and operator=
#if defined(TQ_DISABLE_COPY)
TQHBoxLayout( const TQHBoxLayout & );
TQHBoxLayout &operator=( const TQHBoxLayout & );
#endif
};
class Q_EXPORT TQVBoxLayout : public TQBoxLayout
{
TQ_OBJECT
public:
TQVBoxLayout( TQWidget *parent, int border = 0,
int spacing = -1, const char *name = 0 );
TQVBoxLayout( TQLayout *parentLayout,
int spacing = -1, const char *name = 0 );
TQVBoxLayout( int spacing = -1, const char *name = 0 );
~TQVBoxLayout();
private: // Disabled copy constructor and operator=
#if defined(TQ_DISABLE_COPY)
TQVBoxLayout( const TQVBoxLayout & );
TQVBoxLayout &operator=( const TQVBoxLayout & );
#endif
};
#endif // QT_NO_LAYOUT
#endif // TQLAYOUT_H
</pre>
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