QtiPlot 0.9.8.2
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00001 /*************************************************************************** 00002 File : CanvasPicker.h 00003 Project : QtiPlot 00004 -------------------------------------------------------------------- 00005 Copyright : (C) 2006 by Ion Vasilief 00006 Email (use @ for *) : ion_vasilief*yahoo.fr 00007 Description : Canvas picker 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 <QObject> 00030 #include <QPoint> 00031 #include <QMouseEvent> 00032 00033 class Graph; 00034 class ArrowMarker; 00035 00040 class CanvasPicker: public QObject 00041 { 00042 Q_OBJECT 00043 public: 00044 CanvasPicker(Graph *plot); 00045 virtual bool eventFilter(QObject *, QEvent *); 00046 void selectPoints(int n); 00047 void selectPeak(const QPoint& p); 00048 00050 00052 void disableEditing(); 00053 00054 private: 00055 void drawLineMarker(const QPoint&, bool endArrow); 00056 00058 00061 bool selectMarker(const QMouseEvent *e); 00062 00066 Graph *plot(){return (Graph *)parent();}; 00067 00068 QPoint startLinePoint, endLinePoint; 00069 00070 signals: 00071 void showPlotDialog(int); 00072 void viewLineDialog(); 00073 void showMarkerPopupMenu(); 00074 void modified(); 00075 00076 private: 00077 bool pointSelected; 00084 ArrowMarker *d_editing_marker; 00085 };