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 char *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