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src/qt/src/widgets/qlcdnumber.h
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00001 /****************************************************************************
00002 ** $Id: qt/qlcdnumber.h   3.3.8   edited Jan 11 14:38 $
00003 **
00004 ** Definition of QLCDNumber class
00005 **
00006 ** Created : 940518
00007 **
00008 ** Copyright (C) 1992-2007 Trolltech ASA.  All rights reserved.
00009 **
00010 ** This file is part of the widgets module of the Qt GUI Toolkit.
00011 **
00012 ** This file may be distributed under the terms of the Q Public License
00013 ** as defined by Trolltech ASA of Norway and appearing in the file
00014 ** LICENSE.QPL included in the packaging of this file.
00015 **
00016 ** This file may be distributed and/or modified under the terms of the
00017 ** GNU General Public License version 2 as published by the Free Software
00018 ** Foundation and appearing in the file LICENSE.GPL included in the
00019 ** packaging of this file.
00020 **
00021 ** Licensees holding valid Qt Enterprise Edition or Qt Professional Edition
00022 ** licenses may use this file in accordance with the Qt Commercial License
00023 ** Agreement provided with the Software.
00024 **
00025 ** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
00026 ** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
00027 **
00028 ** See http://www.trolltech.com/pricing.html or email sales@trolltech.com for
00029 **   information about Qt Commercial License Agreements.
00030 ** See http://www.trolltech.com/qpl/ for QPL licensing information.
00031 ** See http://www.trolltech.com/gpl/ for GPL licensing information.
00032 **
00033 ** Contact info@trolltech.com if any conditions of this licensing are
00034 ** not clear to you.
00035 **
00036 **********************************************************************/
00037 
00038 #ifndef QLCDNUMBER_H
00039 #define QLCDNUMBER_H
00040 
00041 #ifndef QT_H
00042 #include "qframe.h"
00043 #include "qbitarray.h"
00044 #endif // QT_H
00045 
00046 #ifndef QT_NO_LCDNUMBER
00047 
00048 
00049 class QLCDNumberPrivate;
00050 
00051 class Q_EXPORT QLCDNumber : public QFrame               // LCD number widget
00052 {
00053     Q_OBJECT
00054     Q_ENUMS( Mode SegmentStyle )
00055     Q_PROPERTY( bool smallDecimalPoint READ smallDecimalPoint WRITE setSmallDecimalPoint )
00056     Q_PROPERTY( int numDigits READ numDigits WRITE setNumDigits )
00057     Q_PROPERTY( Mode mode READ mode WRITE setMode )
00058     Q_PROPERTY( SegmentStyle segmentStyle READ segmentStyle WRITE setSegmentStyle )
00059     Q_PROPERTY( double value READ value WRITE display )
00060     Q_PROPERTY( int intValue READ intValue WRITE display )
00061 
00062 public:
00063     QLCDNumber( QWidget* parent=0, const char* name=0 );
00064     QLCDNumber( uint numDigits, QWidget* parent=0, const char* name=0 );
00065     ~QLCDNumber();
00066 
00067     enum Mode { Hex, Dec, Oct, Bin, HEX = Hex, DEC = Dec, OCT = Oct,
00068                 BIN = Bin };
00069     enum SegmentStyle { Outline, Filled, Flat };
00070 
00071     bool    smallDecimalPoint() const;
00072 
00073     int     numDigits() const;
00074     virtual void setNumDigits( int nDigits );
00075 
00076     bool    checkOverflow( double num ) const;
00077     bool    checkOverflow( int    num ) const;
00078 
00079     Mode mode() const;
00080     virtual void setMode( Mode );
00081 
00082     SegmentStyle segmentStyle() const;
00083     virtual void setSegmentStyle( SegmentStyle );
00084 
00085     double  value() const;
00086     int     intValue() const;
00087 
00088     QSize sizeHint() const;
00089 
00090 public slots:
00091     void    display( const QString &str );
00092     void    display( int num );
00093     void    display( double num );
00094     virtual void setHexMode();
00095     virtual void setDecMode();
00096     virtual void setOctMode();
00097     virtual void setBinMode();
00098     virtual void setSmallDecimalPoint( bool );
00099 
00100 signals:
00101     void    overflow();
00102 
00103 protected:
00104     void    drawContents( QPainter * );
00105 
00106 private:
00107     void    init();
00108     void    internalDisplay( const QString &);
00109     void    internalSetString( const QString& s );
00110     void    drawString( const QString& s, QPainter &, QBitArray * = 0,
00111                         bool = TRUE );
00112     //void    drawString( const QString &, QPainter &, QBitArray * = 0 ) const;
00113     void    drawDigit( const QPoint &, QPainter &, int, char,
00114                        char = ' ' );
00115     void    drawSegment( const QPoint &, char, QPainter &, int, bool = FALSE );
00116 
00117     int     ndigits;
00118     double  val;
00119     uint    base        : 2;
00120     uint    smallPoint  : 1;
00121     uint    fill        : 1;
00122     uint    shadow      : 1;
00123     QString digitStr;
00124     QBitArray points;
00125     QLCDNumberPrivate * d;
00126 
00127 private:        // Disabled copy constructor and operator=
00128 #if defined(Q_DISABLE_COPY)
00129     QLCDNumber( const QLCDNumber & );
00130     QLCDNumber &operator=( const QLCDNumber & );
00131 #endif
00132 };
00133 
00134 inline bool QLCDNumber::smallDecimalPoint() const
00135 { return (bool)smallPoint; }
00136 
00137 inline int QLCDNumber::numDigits() const
00138 { return ndigits; }
00139 
00140 
00141 #endif // QT_NO_LCDNUMBER
00142 
00143 #endif // QLCDNUMBER_H
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