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qlabel.h

/**********************************************************************
** $Id: qt/src/widgets/qlabel.h   2.2.1   edited 2000-08-25 $
**
** Definition of QLabel widget class
**
** Created : 941215
**
** 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 QLABEL_H
#define QLABEL_H

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

#ifndef QT_NO_LABEL

class QSimpleRichText;
class QLabelPrivate;

class Q_EXPORT QLabel : public QFrame
{
    Q_OBJECT
    Q_PROPERTY( QString text READ text WRITE setText )
    Q_PROPERTY( TextFormat textFormat READ textFormat WRITE setTextFormat )
    Q_PROPERTY( QPixmap pixmap READ pixmap WRITE setPixmap )
    Q_PROPERTY( bool scaledContents READ hasScaledContents WRITE setScaledContents )
    Q_PROPERTY( Alignment alignment READ alignment WRITE setAlignment )
    Q_PROPERTY( int indent READ indent WRITE setIndent )
        
public:
    QLabel( QWidget *parent, const char *name=0, WFlags f=0 );
    QLabel( const QString &text, QWidget *parent, const char *name=0,
            WFlags f=0 );
#ifndef QT_NO_ACCEL
    QLabel( QWidget * buddy, const QString &,
            QWidget * parent, const char * name=0, WFlags f=0 );
#endif
    ~QLabel();

    QString      text()         const   { return ltext; }
    QPixmap     *pixmap()       const   { return lpixmap; }
#ifndef QT_NO_MOVIE
    QMovie      *movie()                const;
#endif

    TextFormat textFormat() const;
    void         setTextFormat( TextFormat );

    int          alignment() const      { return align; }
    virtual void setAlignment( int );
    int          indent() const         { return extraMargin; }
    void         setIndent( int );

    bool         autoResize() const     { return autoresize; }
    virtual void setAutoResize( bool );
#ifndef QT_NO_IMAGE_SMOOTHSCALE    
    bool        hasScaledContents() const;
    void        setScaledContents( bool );
#endif
    QSize        sizeHint() const;
    QSize        minimumSizeHint() const;
    QSizePolicy  sizePolicy() const;
#ifndef QT_NO_ACCEL
    virtual void setBuddy( QWidget * );
    QWidget     *buddy() const;
#endif
    void         setAutoMask(bool);

    int          heightForWidth(int) const;

public slots:
    virtual void setText( const QString &);
    virtual void setPixmap( const QPixmap & );
#ifndef QT_NO_MOVIE
    virtual void setMovie( const QMovie & );
#endif
    virtual void setNum( int );
    virtual void setNum( double );
    void         clear();

protected:
    void         drawContents( QPainter * );
    void         drawContentsMask( QPainter * );
    void         fontChange( const QFont & );
    void         resizeEvent( QResizeEvent* );

private slots:
#ifndef QT_NO_ACCEL
    void         acceleratorSlot();
    void         buddyDied();
#endif
#ifndef QT_NO_MOVIE
    void         movieUpdated(const QRect&);
    void         movieResized(const QSize&);
#endif

private:
    void        init();
    void        clearContents();
    void        updateLabel( QSize oldSizeHint );
    QSize       sizeForWidth( int w ) const;
    QString     ltext;
    QPixmap    *lpixmap;
#ifndef QT_NO_MOVIE
    QMovie *    lmovie;
#endif
#ifndef QT_NO_ACCEL
    QWidget *   lbuddy;
#endif
    ushort      align;
    short       extraMargin;
    uint        autoresize:1;
    uint        scaledcontents :1;
    TextFormat textformat;
#ifndef QT_NO_RICHTEXT
    QSimpleRichText* doc;
#endif
#ifndef QT_NO_ACCEL
    QAccel *    accel;
#endif
    QLabelPrivate* d;

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


#endif // QT_NO_LABEL

#endif // QLABEL_H