111 lines
3.6 KiB
C++
111 lines
3.6 KiB
C++
/* -*-c++-*- */
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/* osgEarth - Geospatial SDK for OpenSceneGraph
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* Copyright 2020 Pelican Mapping
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* http://osgearth.org
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*
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* osgEarth is free software; you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>
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*/
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#ifndef OSGEARTHUTIL_MEASURETOOL_H
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#define OSGEARTHUTIL_MEASURETOOL_H 1
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#include <osgEarth/Common>
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#include <osgEarth/MapNode>
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#include <osgEarth/MapNodeObserver>
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#include <osgEarth/FeatureNode>
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#include <osgEarth/Style>
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#include <osg/Group>
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#include <osgGA/GUIEventHandler>
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#include <osgViewer/View>
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namespace osgEarth { namespace Contrib
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{
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using namespace osgEarth;
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struct OSGEARTH_EXPORT MeasureToolHandler : public osgGA::GUIEventHandler, public MapNodeObserver
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{
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public:
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class MeasureToolEventHandler : public osg::Referenced
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{
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public:
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virtual void onDistanceChanged(MeasureToolHandler* sender, double distance) {}
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virtual ~MeasureToolEventHandler() { }
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};
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typedef std::list< osg::ref_ptr< MeasureToolEventHandler > > MeasureToolEventHandlerList;
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MeasureToolHandler( MapNode* mapNode );
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virtual ~MeasureToolHandler();
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bool handle( const osgGA::GUIEventAdapter& ea, osgGA::GUIActionAdapter& aa );
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bool getLocationAt(osgViewer::View* view, double x, double y, double &lon, double &lat);
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void clear();
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void addEventHandler(MeasureToolEventHandler* handler );
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void setMouseButton(int mouseButton);
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int getMouseButton() const;
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GeoInterpolation getGeoInterpolation() const;
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void setGeoInterpolation( GeoInterpolation geoInterpolation );
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void setIsPath( bool path );
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bool getIsPath() const;
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/** Sets the style of the measurement line (to something other than the default) */
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void setLineStyle( const Style& style );
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const Style& getLineStyle() const { return _feature->style().value(); }
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void setIntersectionMask( osg::Node::NodeMask intersectionMask ) { _intersectionMask = intersectionMask; }
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osg::Node::NodeMask getIntersectionMask() const { return _intersectionMask;}
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osgEarth::Feature* getFeature() const { return _feature.get(); }
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public: // MapNodeObserver
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virtual void setMapNode( MapNode* mapNode );
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virtual MapNode* getMapNode() { return _mapNode.get(); }
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protected:
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GeoInterpolation _geoInterpolation;
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void fireDistanceChanged();
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bool _lastPointTemporary;
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bool _gotFirstLocation;
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bool _finished;
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bool _mouseDown;
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float _mouseDownX, _mouseDownY;
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int _mouseButton;
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osg::ref_ptr< osg::Group > _root;
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osg::ref_ptr< osgEarth::FeatureNode > _featureNode;
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osg::ref_ptr< osgEarth::Feature > _feature;
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osg::ref_ptr< osgEarth::FeatureNode > _extentFeatureNode;
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osg::ref_ptr< osgEarth::Feature > _extentFeature;
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MeasureToolEventHandlerList _eventHandlers;
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bool _isPath;
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osg::observer_ptr< MapNode > _mapNode;
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osg::Node::NodeMask _intersectionMask;
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void rebuild();
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};
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} }
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#endif
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