PlotZoomerMachine.cpp
Go to the documentation of this file.
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 #include <QEvent>
00020 #include <QMouseEvent>
00021 
00022 #include <qwt/qwt_event_pattern.h>
00023 
00024 #include "rqt_multiplot/PlotZoomerMachine.h"
00025 
00026 namespace rqt_multiplot {
00027 
00028 /*****************************************************************************/
00029 /* Constructors and Destructor                                               */
00030 /*****************************************************************************/
00031 
00032 PlotZoomerMachine::PlotZoomerMachine() {
00033 }
00034 
00035 PlotZoomerMachine::~PlotZoomerMachine() {
00036 }
00037 
00038 /*****************************************************************************/
00039 /* Methods                                                                   */
00040 /*****************************************************************************/
00041 
00042 QList<QwtPickerMachine::Command> PlotZoomerMachine::transition(const
00043     QwtEventPattern& pattern, const QEvent* event) {
00044   QList<QwtPickerMachine::Command> commands;
00045   
00046   if (event->type() == QEvent::MouseButtonDblClick) {
00047     if (pattern.mouseMatch(QwtEventPattern::MouseSelect1,
00048         static_cast<const QMouseEvent*>(event))) {
00049       if (state() == 0) {
00050         commands += Begin;
00051         commands += Append;
00052         commands += Append;
00053         
00054         setState(2);
00055       }
00056     }
00057   }
00058   else if (event->type() != QEvent::MouseButtonPress)
00059     commands = QwtPickerDragRectMachine::transition(pattern, event);
00060 
00061   return commands;
00062 }
00063 
00064 }


rqt_multiplot
Author(s): Ralf Kaestner
autogenerated on Tue May 9 2017 02:16:02