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# qlineedit.h

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

    /**********************************************************************
    ** $Id: qt/src/widgets/qlineedit.h   2.3.1   edited 2001-04-04 $
    **
    ** Definition of QLineEdit widget class
    **
    ** Created : 941011
    **
    ** Copyright (C) 1992-2000 Trolltech AS.  All rights reserved.
    **
    ** This file is part of the widgets 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 QLINEEDIT_H
    #define QLINEEDIT_H

    struct QLineEditPrivate;

    class QComboBox;
    class QValidator;

    #ifndef QT_H
    #include "qwidget.h"
    #include "qstring.h"
    #endif // QT_H

    #ifndef QT_NO_LINEEDIT

    class Q_EXPORT QLineEdit : public QWidget
    {
        Q_OBJECT
        Q_ENUMS( EchoMode )
        Q_PROPERTY( QString text READ text WRITE setText )
        Q_PROPERTY( int maxLength READ maxLength WRITE setMaxLength )
        Q_PROPERTY( bool frame READ frame WRITE setFrame )
        Q_PROPERTY( EchoMode echoMode READ echoMode WRITE setEchoMode )
        Q_PROPERTY( QString displayText READ displayText )
        Q_PROPERTY( int cursorPosition READ cursorPosition WRITE setCursorPosition )
        Q_PROPERTY( Alignment alignment READ alignment WRITE setAlignment )
        Q_PROPERTY( bool edited READ edited WRITE setEdited )
        Q_PROPERTY( bool hasMarkedText READ hasMarkedText )
        Q_PROPERTY( QString markedText READ markedText )

    public:
        QLineEdit( QWidget *parent, const char *name=0 );
        QLineEdit( const QString &, QWidget *parent, const char *name=0 );
       ~QLineEdit();

        QString text() const;

        QString displayText() const;

        int         maxLength()     const;
        virtual void setMaxLength( int );

        virtual void setFrame( bool );
        bool        frame() const;

        enum        EchoMode { Normal, NoEcho, Password };
        virtual void setEchoMode( EchoMode );
        EchoMode    echoMode() const;
    #if QT_VERSION >= 300
    #error "Make setReadOnly virtual"
    #endif
        void setReadOnly( bool );
        bool isReadOnly() const;

        virtual void setValidator( const QValidator * );
        const QValidator * validator() const;

        QSize       sizeHint() const;
        QSize       minimumSizeHint() const;
        QSizePolicy sizePolicy() const;

        virtual void setEnabled( bool );
        virtual void setFont( const QFont & );
        virtual void setPalette( const QPalette & );
        virtual void setSelection( int, int );

        virtual void setCursorPosition( int );
        int         cursorPosition() const;

        bool        validateAndSet( const QString &, int, int, int );

    #ifndef QT_NO_CLIPBOARD
        void        cut();
        void        copy() const;
        void        paste();
    #endif

        void setAlignment( int flag );
        int alignment() const;

        void        cursorLeft( bool mark, int steps = 1 );
        void        cursorRight( bool mark, int steps = 1 );
        void        cursorWordForward( bool mark );
        void        cursorWordBackward( bool mark );
        void        backspace();
        void        del();
        void        home( bool mark );
        void        end( bool mark );

        void        setEdited( bool );
        bool        edited() const;

        bool        hasMarkedText() const;
        QString     markedText() const;
    #if defined(Q_INCOMPATIBLE_3_0_ADDONS)
        bool        getSelection( int *start, int *end );
        void        setPasswordChar( QChar c );
        QChar       passwordChar() const;
    #endif

    public slots:
        virtual void setText( const QString &);

        void        selectAll();
        void        deselect();

        void        clearValidator();

        void        insert( const QString &);

        void        clear();

    signals:
        void        textChanged( const QString &);
        void        returnPressed();

    protected:
        bool        event( QEvent * );
        void        mousePressEvent( QMouseEvent * );
        void        mouseMoveEvent( QMouseEvent * );
        void        mouseReleaseEvent( QMouseEvent * );
        void        mouseDoubleClickEvent( QMouseEvent * );
        void        keyPressEvent( QKeyEvent * );
        void        focusInEvent( QFocusEvent * );
        void        focusOutEvent( QFocusEvent * );
        void        paintEvent( QPaintEvent * );
        void        resizeEvent( QResizeEvent * );
        void        leaveEvent( QEvent * );
    #ifndef QT_NO_DRAGANDDROP
        void        dragEnterEvent( QDragEnterEvent * );
        void        dropEvent( QDropEvent * );
    #endif

        void        repaintArea( int, int );

    private slots:
        void        clipboardChanged();
        void        blinkSlot();
        void        dragScrollSlot();
    #ifndef QT_NO_DRAGANDDROP
        void        doDrag();
    #endif

    private:
        // kept
        void        newMark( int pos, bool copy=TRUE );
        void        markWord( int pos );
        int         lastCharVisible() const;
        int         minMark() const;
        int         maxMark() const;
        int         frameW() const;

        void        init();

        QString     tbuf;
        QLineEditPrivate * d;
        int         cursorPos;
        int         offset;
        int         maxLen;
        int         markAnchor;
        int         markDrag;
        bool        cursorOn;
        bool        dragScrolling;
        bool        scrollingLeft;
        int         alignmentFlag;
        bool        ed;

        void updateOffset();
        int xPosToCursorPos( int ) const;
        void blinkOn();
        void makePixmap() const;
        void undoInternal();
        void redoInternal();

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

    #endif // QT_NO_LINEEDIT

    #endif // QLINEEDIT_H