00001 /*************************************************************************** 00002 File : CanvasPicker.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 : 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 "Plot.h" 00031 00032 class Graph; 00033 class ArrowMarker; 00034 00041 class CanvasPicker: public QObject 00042 { 00043 Q_OBJECT 00044 public: 00045 CanvasPicker(Graph *plot); 00046 virtual bool eventFilter(QObject *, QEvent *); 00047 void selectPoints(int n); 00048 void selectPeak(const QPoint& p); 00049 00051 00053 void disableEditing(); 00054 00055 private: 00056 void drawTextMarker(const QPoint&); 00057 void drawLineMarker(const QPoint&, bool endArrow); 00058 00060 00063 bool selectMarker(const QMouseEvent *e); 00064 00070 Graph *plot() { return (Graph *)parent(); } 00071 00077 Plot* plotWidget; 00078 QPoint startLinePoint, endLinePoint; 00079 00080 signals: 00081 void showPlotDialog(int); 00082 void viewLineDialog(); 00083 void viewImageDialog(); 00084 void drawTextOff(); 00085 void showMarkerPopupMenu(); 00086 void modified(); 00087 void selectPlot(); 00088 00089 private: 00090 bool pointSelected; 00097 ArrowMarker *d_editing_marker; 00098 };