osgEarth 2.1.1
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00001 /* -*-c++-*- */ 00002 /* osgEarth - Dynamic map generation toolkit for OpenSceneGraph 00003 * Copyright 2008-2010 Pelican Mapping 00004 * http://osgearth.org 00005 * 00006 * osgEarth is free software; you can redistribute it and/or modify 00007 * it under the terms of the GNU Lesser General Public License as published by 00008 * the Free Software Foundation; either version 2 of the License, or 00009 * (at your option) any later version. 00010 * 00011 * This program is distributed in the hope that it will be useful, 00012 * but WITHOUT ANY WARRANTY; without even the implied warranty of 00013 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 00014 * GNU Lesser General Public License for more details. 00015 * 00016 * You should have received a copy of the GNU Lesser General Public License 00017 * along with this program. If not, see <http://www.gnu.org/licenses/> 00018 */ 00019 00020 #ifndef OSGEARTHUTIL_MEASURETOOL_H 00021 #define OSGEARTHUTIL_MEASURETOOL_H 1 00022 00023 #include <osgEarthUtil/Common> 00024 #include <osgEarth/MapNode> 00025 #include <osgEarthFeatures/FeatureNode> 00026 #include <osgEarthSymbology/Style> 00027 #include <osg/Group> 00028 #include <osgGA/GUIEventHandler> 00029 #include <osgViewer/View> 00030 00031 namespace osgEarth { namespace Util 00032 { 00033 using namespace osgEarth::Symbology; 00034 00035 struct OSGEARTHUTIL_EXPORT MeasureToolHandler : public osgGA::GUIEventHandler 00036 { 00037 public: 00038 00039 class MeasureToolEventHandler : public osg::Referenced 00040 { 00041 public: 00042 virtual void onDistanceChanged(MeasureToolHandler* sender, double distance) {} 00043 }; 00044 00045 typedef std::list< osg::ref_ptr< MeasureToolEventHandler > > MeasureToolEventHandlerList; 00046 00047 00048 MeasureToolHandler( osg::Group* group, MapNode* mapNode ); 00049 ~MeasureToolHandler(); 00050 00051 bool handle( const osgGA::GUIEventAdapter& ea, osgGA::GUIActionAdapter& aa ); 00052 00053 bool getLocationAt(osgViewer::View* view, double x, double y, double &lon, double &lat); 00054 00055 void clear(); 00056 00057 void addEventHandler(MeasureToolEventHandler* handler ); 00058 00059 void setMouseButton(int mouseButton); 00060 int getMouseButton() const; 00061 00062 GeoInterpolation getGeoInterpolation() const; 00063 void setGeoInterpolation( GeoInterpolation geoInterpolation ); 00064 00065 void setIsPath( bool path ); 00066 bool getIsPath() const; 00067 00069 void setLineStyle( const Style& style ); 00070 const Style& getLineStyle() const { return _feature->style().value(); } 00071 00072 void setIntersectionMask( osg::Node::NodeMask intersectionMask ) { _intersectionMask = intersectionMask; } 00073 osg::Node::NodeMask getIntersectionMask() const { return _intersectionMask;} 00074 00075 protected: 00076 GeoInterpolation _geoInterpolation; 00077 void fireDistanceChanged(); 00078 bool _lastPointTemporary; 00079 bool _gotFirstLocation; 00080 bool _finished; 00081 bool _mouseDown; 00082 float _mouseDownX, _mouseDownY; 00083 int _mouseButton; 00084 osg::ref_ptr< osg::Group > _group; 00085 00086 osg::ref_ptr< osgEarth::Features::FeatureNode > _featureNode; 00087 osg::ref_ptr< osgEarth::Features::Feature > _feature; 00088 00089 MeasureToolEventHandlerList _eventHandlers; 00090 bool _isPath; 00091 osg::ref_ptr< MapNode > _mapNode; 00092 osg::Node::NodeMask _intersectionMask; 00093 }; 00094 }} 00095 #endif