QwtBarCurve.h

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00001 /***************************************************************************
00002     File                 : QwtBarCurve.h
00003     Project              : QtiPlot
00004     --------------------------------------------------------------------
00005     Copyright            : (C) 2006 by Ion Vasilief, Tilman Hoener zu Siederdissen
00006     Email (use @ for *)  : ion_vasilief*yahoo.fr, thzs*gmx.net
00007     Description          : Bar curve
00008 
00009  ***************************************************************************/
00010 
00011 /***************************************************************************
00012  *                                                                         *
00013  *  This program is free software; you can redistribute it and/or modify   *
00014  *  it under the terms of the GNU General Public License as published by   *
00015  *  the Free Software Foundation; either version 2 of the License, or      *
00016  *  (at your option) any later version.                                    *
00017  *                                                                         *
00018  *  This program is distributed in the hope that it will be useful,        *
00019  *  but WITHOUT ANY WARRANTY; without even the implied warranty of         *
00020  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the          *
00021  *  GNU General Public License for more details.                           *
00022  *                                                                         *
00023  *   You should have received a copy of the GNU General Public License     *
00024  *   along with this program; if not, write to the Free Software           *
00025  *   Foundation, Inc., 51 Franklin Street, Fifth Floor,                    *
00026  *   Boston, MA  02110-1301  USA                                           *
00027  *                                                                         *
00028  ***************************************************************************/
00029 #ifndef BARCURVE_H
00030 #define BARCURVE_H
00031 
00032 #include "PlotCurve.h"
00033 #include <qwt_plot.h>
00034 
00036 class QwtBarCurve: public DataCurve
00037 {
00038 public:
00039     enum BarStyle{Vertical = 0, Horizontal = 1};
00040     QwtBarCurve(BarStyle style, Table *t, const QString& xColName, const QString& name, int startRow, int endRow);
00041 
00042     void copy(const QwtBarCurve *b);
00043 
00044     virtual QwtDoubleRect boundingRect() const;
00045 
00046     BarStyle orientation(){return bar_style;};
00047 
00048     void setGap (int gap);
00049     int gap() const {return bar_gap;};
00050 
00051     void setOffset(int offset);
00052     int offset() const {return bar_offset;};
00053 
00054     double dataOffset();
00055 
00056 private:
00057     virtual void draw(QPainter *painter,const QwtScaleMap &xMap,
00058         const QwtScaleMap &yMap, int from, int to) const;
00059 
00060     int bar_gap, bar_offset;
00061     BarStyle bar_style;
00062 };
00063 
00064 #endif

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