KDChartTextPiece.h

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00001 /* -*- Mode: C++ -*-
00002    KDChart - a multi-platform charting engine
00003    */
00004 
00005 /****************************************************************************
00006  ** Copyright (C) 2001-2003 Klarälvdalens Datakonsult AB.  All rights reserved.
00007  **
00008  ** This file is part of the KDChart library.
00009  **
00010  ** This file may be distributed and/or modified under the terms of the
00011  ** GNU General Public License version 2 as published by the Free Software
00012  ** Foundation and appearing in the file LICENSE.GPL included in the
00013  ** packaging of this file.
00014  **
00015  ** Licensees holding valid commercial KDChart licenses may use this file in
00016  ** accordance with the KDChart Commercial License Agreement provided with
00017  ** the Software.
00018  **
00019  ** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
00020  ** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
00021  **
00022  ** See http://www.klaralvdalens-datakonsult.se/?page=products for
00023  **   information about KDChart Commercial License Agreements.
00024  **
00025  ** Contact info@klaralvdalens-datakonsult.se if any conditions of this
00026  ** licensing are not clear to you.
00027  **
00028  **********************************************************************/
00029 #ifndef __KDCHARTTEXTPIECE_H__
00030 #define __KDCHARTTEXTPIECE_H__
00031 
00032 #include <qstring.h>
00033 #include <qfont.h>
00034 #include <qregion.h>
00035 #include <qpalette.h>
00036 #include <qobject.h>
00037 #include <kdchart_export.h>
00038 
00039 class QBrush;
00040 class QPainter;
00041 class QSimpleRichText;
00042 class QFontMetrics;
00043 
00044 class KDCHART_EXPORT KDChartTextPiece :public QObject
00045 {
00046     Q_OBJECT
00047 
00048     public:
00049         KDChartTextPiece();
00050         KDChartTextPiece( const QString& text, const QFont& font );
00051         KDChartTextPiece( QPainter* painter, const QString& text, const QFont& font );
00052         virtual ~KDChartTextPiece();
00060         void deepCopy( const KDChartTextPiece* source );
00061 
00062 
00072         const KDChartTextPiece* clone() const;
00073 
00074     private:
00075         KDChartTextPiece( const KDChartTextPiece& ) : QObject(0) {}
00076 
00077     public slots:
00078         virtual int width() const;
00079         virtual int height() const;
00080         virtual int fontLeading() const;
00081         virtual QRect rect( QPainter *p, const QRect& clipRect) const;
00082         virtual void draw( QPainter *p, int x, int y, const QRect& clipRect,
00083                 const QColor& color, const QBrush* paper = 0 ) const;
00084         virtual void draw( QPainter *p, int x, int y, const QRegion& clipRegion,
00085                 const QColor& color, const QBrush* paper = 0 ) const;
00086 
00087         QString text() const;
00088         QFont font() const;
00089         bool isRichText() const;
00090         
00091 
00092     protected:
00093         bool _isRichText;
00094         QSimpleRichText* _richText; // used when _isRichText == true
00095         QString _text; // used when _isRichText == false
00096         QFont _font; // used when _isRichText == false
00097         QFontMetrics* _metrics;
00098         bool _dirtyMetrics;
00099 };
00100 
00101 #endif

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