278 lines
11 KiB
C++
278 lines
11 KiB
C++
/* -*-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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#include <osg/io_utils>
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#include <stdlib.h>
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using namespace osgPresentation;
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PickEventHandler::PickEventHandler(osgPresentation::Operation operation, const JumpData& jumpData):
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_operation(operation),
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_jumpData(jumpData),
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_drawablesOnPush()
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{
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OSG_INFO<<"PickEventHandler::PickEventHandler(operation="<<operation<<", jumpData.relativeJump="<<jumpData.relativeJump<<", jumpData.="<<jumpData.slideNum<<", jumpData.layerNum="<<jumpData.layerNum<<std::endl;
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}
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PickEventHandler::PickEventHandler(const std::string& str, osgPresentation::Operation operation, const JumpData& jumpData):
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_command(str),
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_operation(operation),
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_jumpData(jumpData),
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_drawablesOnPush()
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{
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OSG_INFO<<"PickEventHandler::PickEventHandler(str="<<str<<", operation="<<operation<<", jumpData.relativeJump="<<jumpData.relativeJump<<", jumpData.="<<jumpData.slideNum<<", jumpData.layerNum="<<jumpData.layerNum<<std::endl;
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}
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PickEventHandler::PickEventHandler(const osgPresentation::KeyPosition& keyPos, const JumpData& jumpData):
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_keyPos(keyPos),
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_operation(osgPresentation::EVENT),
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_jumpData(jumpData),
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_drawablesOnPush()
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{
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OSG_INFO<<"PickEventHandler::PickEventHandler(keyPos="<<keyPos._key<<", jumpData.relativeJump="<<jumpData.relativeJump<<", jumpData.="<<jumpData.slideNum<<", jumpData.layerNum="<<jumpData.layerNum<<std::endl;
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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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if (ea.getHandled()) return false;
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osgViewer::Viewer* viewer = dynamic_cast<osgViewer::Viewer*>(&aa);
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if (!viewer) return false;
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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::DRAG):
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case(osgGA::GUIEventAdapter::RELEASE):
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{
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if(ea.getEventType() == osgGA::GUIEventAdapter::PUSH)
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{
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_drawablesOnPush.clear();
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}
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osgUtil::LineSegmentIntersector::Intersections intersections;
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if (viewer->computeIntersections(ea, 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 (_operation == FORWARD_MOUSE_EVENT)
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{
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osg::ref_ptr<osgGA::GUIEventAdapter> cloned_ea = osg::clone(&ea);
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// clear touch-data as this prevents sending the event as mouse-event
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cloned_ea->setTouchData(NULL);
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// reproject mouse-coord
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const osg::BoundingBox bb(hitr->drawable->getBoundingBox());
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const osg::Vec3& p(hitr->localIntersectionPoint);
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float transformed_x = (p.x() - bb.xMin()) / (bb.xMax() - bb.xMin());
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float transformed_y = (p.z() - bb.zMin()) / (bb.zMax() - bb.zMin());
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cloned_ea->setX(ea.getXmin() + transformed_x * (ea.getXmax() - ea.getXmin()));
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cloned_ea->setY(ea.getYmin() + transformed_y * (ea.getYmax() - ea.getYmin()));
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cloned_ea->setMouseYOrientation(osgGA::GUIEventAdapter::Y_INCREASING_UPWARDS);
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// std::cout << transformed_x << "/" << transformed_x << " -> " << cloned_ea->getX() << "/" <<cloned_ea->getY() << std::endl;
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SlideEventHandler::instance()->forwardEventToDevices(cloned_ea.get());
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}
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else if ((_operation == FORWARD_TOUCH_EVENT) && ea.isMultiTouchEvent())
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{
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osg::ref_ptr<osgGA::GUIEventAdapter> cloned_ea = osg::clone(&ea);
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cloned_ea->setMouseYOrientation(osgGA::GUIEventAdapter::Y_INCREASING_DOWNWARDS);
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osgGA::GUIEventAdapter::TouchData* touch_data = cloned_ea->getTouchData();
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// reproject touch-points
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const osg::BoundingBox bb(hitr->drawable->getBoundingBox());
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osg::Camera* camera = viewer->getCamera();
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osg::Matrix matrix = osg::computeLocalToWorld(hitr->nodePath, false) * camera->getViewMatrix() * camera->getProjectionMatrix();
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matrix.postMult(camera->getViewport()->computeWindowMatrix());
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osg::Matrixd inverse;
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inverse.invert(matrix);
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// transform touch-points into local coord-system
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unsigned int j(0);
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for(osgGA::GUIEventAdapter::TouchData::iterator i = touch_data->begin(); i != touch_data->end(); ++i, ++j)
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{
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osg::Vec3 local = osg::Vec3(i->x, i->y, 0) * inverse;
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// std::cout << local << " hit: " << hitr->localIntersectionPoint << std::endl;
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local.x() = (local.x() - bb.xMin()) / (bb.xMax() - bb.xMin());
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local.z() = (local.z() - bb.zMin()) / (bb.zMax() - bb.zMin());
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local.x() = (ea.getXmin() + local.x() * (ea.getXmax() - ea.getXmin()));
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local.z() = (ea.getYmin() + local.z() * (ea.getYmax() - ea.getYmin()));
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// std::cout << ea.getX() << "/" << ea.getY() << " -- " << i->x << " " << i->y << " -> " << local.x() <<"/" << local.z() << std::endl;
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i->x = local.x();
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i->y = 1 + local.z(); // no idea why I have to add 1 to get y in the range [0..1]
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}
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// std::cout << transformed_x << "/" << transformed_x << " -> " << cloned_ea->getX() << "/" <<cloned_ea->getY() << std::endl;
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SlideEventHandler::instance()->forwardEventToDevices(cloned_ea.get());
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}
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else
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{
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if (ea.getEventType()==osgGA::GUIEventAdapter::PUSH)
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{
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_drawablesOnPush.insert( hitr->drawable.get() );
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}
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else if (ea.getEventType()==osgGA::GUIEventAdapter::MOVE)
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{
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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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if (_drawablesOnPush.find(hitr->drawable.get()) != _drawablesOnPush.end())
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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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}
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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_NOTICE<<"PickEventHandler KEYDOWN "<<(char)ea.getKey()<<std::endl;
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//if (object) 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::getUsage(osg::ApplicationUsage& /*usage*/) const
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{
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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_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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bool commandRunsInBackground = (_command.find("&")!=std::string::npos);
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int result = system(_command.c_str());
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OSG_INFO<<"system("<<_command<<") result "<<result<<std::endl;
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if (commandRunsInBackground)
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{
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// Sleep briefly while command runs in background to give it a chance to open
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// a window and obscure this present3D's window avoiding this present3D from
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// rendering anything new before the new window opens.
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OpenThreads::Thread::microSleep(500000); // half second sleep.
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}
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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_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_NOTICE<<"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_INFO<<"Requires jump "<<std::endl;
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break;
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}
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case(osgPresentation::FORWARD_MOUSE_EVENT):
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case(osgPresentation::FORWARD_TOUCH_EVENT):
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break;
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}
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if (_jumpData.requiresJump())
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{
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_jumpData.jump(SlideEventHandler::instance());
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}
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else
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{
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OSG_INFO<<"No jump required."<<std::endl;
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}
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}
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