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# qlayout.h

This is the verbatim text of the qlayout.h include file. It is provided only for illustration; the copyright remains with Trolltech.

    /****************************************************************************
    ** $Id: qt/src/kernel/qlayout.h   2.3.1   edited 2001-01-26 $
    **
    ** Definition of layout classes
    **
    ** 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 QLAYOUT_H
    #define QLAYOUT_H

    #ifndef QT_H
    #include "qabstractlayout.h"
    #endif // QT_H

    #ifndef QT_NO_LAYOUT
    class QLayoutArray;
    class QLayoutBox;

    #if 0
    Q_OBJECT
    #endif

    class Q_EXPORT QGridLayout : public QLayout
    {
        Q_OBJECT
    public:
        QGridLayout( QWidget *parent, int nRows = 1, int nCols = 1, int border=0,
                     int space = -1, const char *name=0 );
        QGridLayout( int nRows = 1, int nCols = 1, int space = -1,
                     const char *name=0 );
        QGridLayout( QLayout *parentLayout, int nRows = 1, int nCols = 1,
                     int space = -1, const char *name=0 );
        ~QGridLayout();

        QSize sizeHint() const;
        QSize minimumSize() const;
        QSize maximumSize() const;

        virtual void setRowStretch( int row, int stretch );
        virtual void setColStretch( int col, int stretch );
        int rowStretch( int row ) const;
        int colStretch( int col ) const;

        int numRows() const;
        int numCols() const;
        QRect cellGeometry( int row, int col ) const;

        bool hasHeightForWidth() const;
        int heightForWidth( int ) const;

        QSizePolicy::ExpandData expanding() const;
        void invalidate();

        void addItem( QLayoutItem * );
        void addItem( QLayoutItem *item, int row, int col );
        void addMultiCell( QLayoutItem *, int fromRow, int toRow,
                                   int fromCol, int toCol, int align = 0 );
        // void setAlignment( QWidget* );

        void addWidget( QWidget *, int row, int col, int align = 0 );
        void addMultiCellWidget( QWidget *, int fromRow, int toRow,
                                 int fromCol, int toCol, int align = 0 );
        void addLayout( QLayout *layout, int row, int col);
        void addMultiCellLayout( QLayout *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 );
        QLayoutIterator iterator();
        void setGeometry( const QRect& );

    protected:
        bool findWidget( QWidget* w, int *r, int *c );
        void add( QLayoutItem*, int row, int col );
    private:
        void init( int rows, int cols );
        QLayoutArray *array;

    private:        // Disabled copy constructor and operator=
    #if defined(Q_DISABLE_COPY)
        QGridLayout( const QGridLayout & );
        QGridLayout &operator=( const QGridLayout & );
    #endif
    };

    class QBoxLayoutData;

    class Q_EXPORT QBoxLayout : public QLayout
    {
        Q_OBJECT
    public:
        enum Direction { LeftToRight, RightToLeft, TopToBottom, BottomToTop,
                         Down = TopToBottom, Up = BottomToTop };

        QBoxLayout( QWidget *parent, Direction, int border=0,
                    int space = -1, const char *name=0 );

        QBoxLayout( QLayout *parentLayout, Direction, int space = -1,
                    const char *name=0 );

        QBoxLayout( Direction, int space = -1,
                    const char *name=0 );

        ~QBoxLayout();

        void addItem( QLayoutItem * );

        Direction direction() const { return dir; }
        void setDirection( Direction );

        void addSpacing( int size );
        void addStretch( int stretch = 0 );
        void addWidget( QWidget *, int stretch = 0, int alignment = 0 );
        void addLayout( QLayout *layout, int stretch = 0 );
        void addStrut( int );

        void insertSpacing( int index, int size );
        void insertStretch( int index, int stretch = 0 );
        void insertWidget( int index, QWidget *widget, int stretch = 0,
                           int alignment = 0 );
        void insertLayout( int index, QLayout *layout, int stretch = 0 );

        bool setStretchFactor( QWidget*, int stretch );
        bool setStretchFactor( QLayout *l, int stretch );

        QSize sizeHint() const;
        QSize minimumSize() const;
        QSize maximumSize() const;

        bool hasHeightForWidth() const;
        int heightForWidth( int ) const;

        QSizePolicy::ExpandData expanding() const;
        void invalidate();
        QLayoutIterator iterator();
        void setGeometry( const QRect& );

        int findWidget( QWidget* w );
    protected:
        void insertItem( int index, QLayoutItem * );

    private:
        void setupGeom();
        int calcHfw( int );
        QBoxLayoutData *data;
        Direction dir;
    private:        // Disabled copy constructor and operator=
    #if defined(Q_DISABLE_COPY)
        QBoxLayout( const QBoxLayout & );
        QBoxLayout &operator=( const QBoxLayout & );
    #endif

    };

    class Q_EXPORT QHBoxLayout : public QBoxLayout
    {
        Q_OBJECT
    public:
        QHBoxLayout( QWidget *parent, int border=0,
                    int space = -1, const char *name=0 );
        QHBoxLayout( QLayout *parentLayout,
                     int space = -1, const char *name=0 );
        QHBoxLayout( int space = -1, const char *name=0 );

        ~QHBoxLayout();

    };

    class Q_EXPORT QVBoxLayout : public QBoxLayout
    {
        Q_OBJECT
    public:
        QVBoxLayout( QWidget *parent, int border=0,
                    int space = -1, const char *name=0 );
        QVBoxLayout( QLayout *parentLayout,
                     int space = -1, const char *name=0 );
        QVBoxLayout( int space = -1, const char *name=0 );

        ~QVBoxLayout();

    };

    #endif //QT_NO_LAYOUT
    #endif // QLAYOUT_H