00001 /*************************************************************************** 00002 File : ScreenPickerTool.h 00003 Project : QtiPlot 00004 -------------------------------------------------------------------- 00005 Copyright : (C) 2006,2007 by Ion Vasilief, Knut Franke 00006 Email (use @ for *) : ion_vasilief*yahoo.fr, knut.franke*gmx.de 00007 Description : Plot tool for selecting arbitrary points. 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 SCREEN_PICKER_TOOL_H 00030 #define SCREEN_PICKER_TOOL_H 00031 00032 #include "PlotToolInterface.h" 00033 #include <QObject> 00034 #include <qwt_double_rect.h> 00035 #include <qwt_plot_marker.h> 00036 #include <qwt_plot_picker.h> 00037 00038 class ApplicationWindow; 00039 class Table; 00040 class DataCurve; 00041 00047 class ScreenPickerTool : public QwtPlotPicker, public PlotToolInterface 00048 { 00049 Q_OBJECT 00050 public: 00051 ScreenPickerTool(Graph *graph, const QObject *status_target=NULL, const char *status_slot=""); 00052 virtual ~ScreenPickerTool(); 00053 00054 signals: 00059 void statusText(const QString&); 00060 protected: 00061 virtual bool eventFilter(QObject *obj, QEvent *event); 00062 virtual void append(const QPoint &point); 00063 QwtPlotMarker d_selection_marker; 00064 }; 00065 00069 class DrawPointTool : public ScreenPickerTool 00070 { 00071 Q_OBJECT 00072 public: 00073 DrawPointTool(ApplicationWindow *app, Graph *graph, const QObject *status_target=NULL, const char *status_slot=""); 00074 00075 protected: 00076 virtual bool eventFilter(QObject *obj, QEvent *event); 00077 void appendPoint(const QwtDoublePoint &point); 00078 DataCurve *d_curve; 00079 Table *d_table; 00080 ApplicationWindow *d_app; 00081 }; 00082 00083 #endif // ifndef SCREEN_PICKER_TOOL_H