00001 /****************************************************************************** 00002 * Copyright (C) 2015 by Ralf Kaestner * 00003 * ralf.kaestner@gmail.com * 00004 * * 00005 * This program is free software; you can redistribute it and/or modify * 00006 * it under the terms of the Lesser GNU General Public License as published by* 00007 * the Free Software Foundation; either version 3 of the License, or * 00008 * (at your option) any later version. * 00009 * * 00010 * This program is distributed in the hope that it will be useful, * 00011 * but WITHOUT ANY WARRANTY; without even the implied warranty of * 00012 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * 00013 * Lesser GNU General Public License for more details. * 00014 * * 00015 * You should have received a copy of the Lesser GNU General Public License * 00016 * along with this program. If not, see <http://www.gnu.org/licenses/>. * 00017 ******************************************************************************/ 00018 00019 #ifndef RQT_MULTIPLOT_PLOT_PANNER_H 00020 #define RQT_MULTIPLOT_PLOT_PANNER_H 00021 00022 #include <QCursor> 00023 #include <QObject> 00024 #include <QPointF> 00025 00026 #include <qwt/qwt_scale_map.h> 00027 00028 #include <rqt_multiplot/BoundingRectangle.h> 00029 00030 class QwtPlotCanvas; 00031 00032 namespace rqt_multiplot { 00033 class PlotPanner : 00034 public QObject { 00035 Q_OBJECT 00036 public: 00037 PlotPanner(QwtPlotCanvas* canvas); 00038 ~PlotPanner(); 00039 00040 protected: 00041 bool eventFilter(QObject* object, QEvent* event); 00042 00043 private: 00044 QwtPlotCanvas* canvas_; 00045 00046 bool panning_; 00047 00048 QPoint position_; 00049 QCursor cursor_; 00050 QCursor canvasCursor_; 00051 00052 QwtScaleMap xMap_; 00053 QwtScaleMap yMap_; 00054 BoundingRectangle bounds_; 00055 }; 00056 }; 00057 00058 #endif