Refactored preset3D/p3d plugin so that common scene graph extensions and classes now live in a separate osgPresenttation NodeKit.
This commit is contained in:
Robert Osfield
215
src/osgPresentation/PickEventHandler.cpp
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215
src/osgPresentation/PickEventHandler.cpp
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/* -*-c++-*- Present3D - Copyright (C) 1999-2006 Robert Osfield
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*
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* This software is open source and may be redistributed and/or modified under
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* the terms of the GNU General Public License (GPL) version 2.0.
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* The full license is in LICENSE.txt file included with this distribution,.
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*
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* This software 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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* include LICENSE.txt for more details.
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*/
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#include <osgPresentation/PickEventHandler>
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#include <osgPresentation/SlideEventHandler>
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#include <osgViewer/Viewer>
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#include <osg/Notify>
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#include <osgDB/FileUtils>
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using namespace osgPresentation;
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PickEventHandler::PickEventHandler(osgPresentation::Operation operation,bool relativeJump, int slideNum, int layerNum):
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_operation(operation),
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_relativeJump(relativeJump),
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_slideNum(slideNum),
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_layerNum(layerNum)
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{
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}
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PickEventHandler::PickEventHandler(const std::string& str, osgPresentation::Operation operation,bool relativeJump, int slideNum, int layerNum):
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_command(str),
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_operation(operation),
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_relativeJump(relativeJump),
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_slideNum(slideNum),
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_layerNum(layerNum)
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{
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}
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PickEventHandler::PickEventHandler(const osgPresentation::KeyPosition& keyPos,bool relativeJump, int slideNum, int layerNum):
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_keyPos(keyPos),
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_operation(osgPresentation::EVENT),
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_relativeJump(relativeJump),
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_slideNum(slideNum),
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_layerNum(layerNum)
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{
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}
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bool PickEventHandler::handle(const osgGA::GUIEventAdapter& ea,osgGA::GUIActionAdapter& aa, osg::Object*, osg::NodeVisitor* nv)
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{
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switch(ea.getEventType())
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{
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case(osgGA::GUIEventAdapter::MOVE):
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case(osgGA::GUIEventAdapter::PUSH):
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case(osgGA::GUIEventAdapter::RELEASE):
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{
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osgViewer::Viewer* viewer = dynamic_cast<osgViewer::Viewer*>(&aa);
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osgUtil::LineSegmentIntersector::Intersections intersections;
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if (viewer->computeIntersections(ea.getX(),ea.getY(), nv->getNodePath(), intersections))
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{
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for(osgUtil::LineSegmentIntersector::Intersections::iterator hitr=intersections.begin();
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hitr!=intersections.end();
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++hitr)
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{
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if (ea.getEventType()==osgGA::GUIEventAdapter::MOVE)
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{
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osg::notify(osg::INFO)<<"Tooltip..."<<std::endl;
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}
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else if (ea.getEventType()==osgGA::GUIEventAdapter::RELEASE)
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{
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doOperation();
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return true;
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}
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}
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}
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break;
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}
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case(osgGA::GUIEventAdapter::KEYDOWN):
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{
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//osg::notify(osg::NOTICE)<<"PickEventHandler KEYDOWN "<<(char)ea.getKey()<<std::endl;
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//if (object) osg::notify(osg::NOTICE)<<" "<<object->className()<<std::endl;
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break;
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}
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default:
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break;
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}
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return false;
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}
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void PickEventHandler::accept(osgGA::GUIEventHandlerVisitor& v)
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{
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v.visit(*this);
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}
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void PickEventHandler::getUsage(osg::ApplicationUsage& /*usage*/) const
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{
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}
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void PickEventHandler::setRelativeJump(int slideNum, int layerNum)
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{
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_relativeJump = true;
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_slideNum = slideNum;
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_layerNum = layerNum;
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}
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void PickEventHandler::setAbsoluteJump(int slideNum, int layerNum)
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{
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_relativeJump = false;
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_slideNum = slideNum;
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_layerNum = layerNum;
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}
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void PickEventHandler::doOperation()
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{
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switch(_operation)
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{
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case(osgPresentation::RUN):
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{
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osg::notify(osg::NOTICE)<<"Run "<<_command<<std::endl;
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#if 0
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osgDB::FilePathList& paths = osgDB::getDataFilePathList();
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if (!paths.empty())
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{
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#ifdef _WIN32
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std::string delimintor(";");
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#else
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std::string delimintor(":");
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#endif
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std::string filepath("OSG_FILE_PATH=");
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bool needDeliminator = false;
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for(osgDB::FilePathList::iterator itr = paths.begin();
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itr != paths.end();
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++itr)
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{
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if (needDeliminator) filepath += delimintor;
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filepath += *itr;
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needDeliminator = true;
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}
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putenv( (char*) filepath.c_str());
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std::string binpath("PATH=");
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char* path = getenv("PATH");
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if (path) binpath += path;
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needDeliminator = true;
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for(osgDB::FilePathList::iterator itr = paths.begin();
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itr != paths.end();
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++itr)
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{
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if (needDeliminator) binpath += delimintor;
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binpath += *itr;
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needDeliminator = true;
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}
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putenv( (char*) binpath.c_str());
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}
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#endif
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int result = system(_command.c_str());
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osg::notify(osg::INFO)<<"system("<<_command<<") result "<<result<<std::endl;
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break;
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}
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case(osgPresentation::LOAD):
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{
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osg::notify(osg::NOTICE)<<"Load "<<_command<<std::endl;
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break;
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}
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case(osgPresentation::EVENT):
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{
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osg::notify(osg::INFO)<<"Event "<<_keyPos._key<<" "<<_keyPos._x<<" "<<_keyPos._y<<std::endl;
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if (SlideEventHandler::instance()) SlideEventHandler::instance()->dispatchEvent(_keyPos);
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break;
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}
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case(osgPresentation::JUMP):
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{
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osg::notify(osg::NOTICE)<<"Requires jump "<<std::endl;
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break;
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}
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}
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if (requiresJump())
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{
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osg::notify(osg::NOTICE)<<"Requires jump "<<_relativeJump<<", "<<_slideNum<<", "<<_layerNum<<std::endl;
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if (_relativeJump)
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{
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int previousSlide = SlideEventHandler::instance()->getActiveSlide();
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int previousLayer = SlideEventHandler::instance()->getActiveLayer();
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int newSlide = previousSlide + _slideNum;
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int newLayer = previousLayer + _layerNum;
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if (newLayer<0)
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{
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newLayer = 0;
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}
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osg::notify(osg::NOTICE)<<" jump to "<<newSlide<<", "<<newLayer<<std::endl;
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SlideEventHandler::instance()->selectSlide(newSlide, newLayer);
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}
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else
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{
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SlideEventHandler::instance()->selectSlide(_slideNum,_layerNum);
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}
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}
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else
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{
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osg::notify(osg::NOTICE)<<"No jump required."<<std::endl;
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}
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}
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