00001 /*************************************************************************** 00002 File : QwtPieCurve.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 : Pie plot class 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 #include <qwt_plot.h> 00030 #include "PlotCurve.h" 00031 00033 class QwtPieCurve: public DataCurve 00034 { 00035 public: 00036 QwtPieCurve(Table *t, const char *name, int startRow, int endRow); 00037 00038 public slots: 00039 QColor color(int i) const; 00040 00041 int ray(){return d_pie_ray;}; 00042 void setRay(int size){d_pie_ray = size; updateBoundingRect();}; 00043 00044 Qt::BrushStyle pattern(){return QwtPlotCurve::brush().style();}; 00045 void setBrushStyle(const Qt::BrushStyle& style); 00046 00047 void setFirstColor(int index){d_first_color = index;}; 00048 int firstColor(){return d_first_color;}; 00049 00050 void loadData(); 00051 void updateBoundingRect(); 00052 00053 private: 00054 void draw(QPainter *painter,const QwtScaleMap &xMap, 00055 const QwtScaleMap &yMap, int from, int to) const; 00056 00057 void drawPie(QPainter *painter, const QwtScaleMap &xMap, 00058 const QwtScaleMap &yMap, int from, int to) const; 00059 00060 int d_pie_ray, d_first_color; 00062 double d_left_coord; 00063 };