00001 // ***************************************************************************** 00002 // 00003 // Copyright (c) 2014, Southwest Research Institute® (SwRI®) 00004 // All rights reserved. 00005 // 00006 // Redistribution and use in source and binary forms, with or without 00007 // modification, are permitted provided that the following conditions are met: 00008 // * Redistributions of source code must retain the above copyright 00009 // notice, this list of conditions and the following disclaimer. 00010 // * Redistributions in binary form must reproduce the above copyright 00011 // notice, this list of conditions and the following disclaimer in the 00012 // documentation and/or other materials provided with the distribution. 00013 // * Neither the name of Southwest Research Institute® (SwRI®) nor the 00014 // names of its contributors may be used to endorse or promote products 00015 // derived from this software without specific prior written permission. 00016 // 00017 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 00018 // AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 00019 // IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 00020 // ARE DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> BE LIABLE FOR ANY 00021 // DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 00022 // (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 00023 // LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND 00024 // ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 00025 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 00026 // SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 00027 // 00028 // ***************************************************************************** 00029 00030 #ifndef MAPVIZ_PLUGINS_CANVAS_CLICK_FILTER_H 00031 #define MAPVIZ_PLUGINS_CANVAS_CLICK_FILTER_H 00032 00033 #include <QObject> 00034 #include <QPoint> 00035 00045 namespace mapviz_plugins 00046 { 00047 class CanvasClickFilter : public QObject 00048 { 00049 Q_OBJECT 00050 00051 public: 00052 CanvasClickFilter(); 00053 00054 void setMaxClickTime(qint64 max_ms); 00055 void setMaxClickMovement(qreal max_distance); 00056 00057 Q_SIGNALS: 00058 void pointClicked(const QPointF&); 00059 00060 protected: 00061 bool eventFilter(QObject *object, QEvent* event); 00062 00063 private: 00064 bool is_mouse_down_; 00065 QPointF mouse_down_pos_; 00066 qint64 mouse_down_time_; 00067 00068 qint64 max_ms_; 00069 qreal max_distance_; 00070 }; 00071 } 00072 00073 #endif //MAPVIZ_PLUGINS_CANVAS_CLICK_FILTER_H