1 /* -*-c++-*- Present3D - Copyright (C) 1999-2006 Robert Osfield 2 * 3 * This software is open source and may be redistributed and/or modified under 4 * the terms of the GNU General Public License (GPL) version 2.0. 5 * The full license is in LICENSE.txt file included with this distribution,. 6 * 7 * This software is distributed in the hope that it will be useful, 8 * but WITHOUT ANY WARRANTY; without even the implied warranty of 9 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 10 * include LICENSE.txt for more details. 11 */ 12 13 #include <osgPresentation/PickEventHandler> 14 #include <osgPresentation/SlideEventHandler> 15 16 #include <osgViewer/Viewer> 17 #include <osg/Notify> 18 #include <osgDB/FileUtils> 19 #include <osg/io_utils> 20 21 #include <stdlib.h> 22 23 using namespace osgPresentation; 24 25 PickEventHandler::PickEventHandler(osgPresentation::Operation operation, const JumpData& jumpData): 26 _operation(operation), 27 _jumpData(jumpData), 28 _drawablesOnPush() 29 { 30 OSG_INFO<<"PickEventHandler::PickEventHandler(operation="<<operation<<", jumpData.relativeJump="<<jumpData.relativeJump<<", jumpData.="<<jumpData.slideNum<<", jumpData.layerNum="<<jumpData.layerNum<<std::endl; 31 } 32 33 PickEventHandler::PickEventHandler(const std::string& str, osgPresentation::Operation operation, const JumpData& jumpData): 34 _command(str), 35 _operation(operation), 36 _jumpData(jumpData), 37 _drawablesOnPush() 38 { 39 OSG_INFO<<"PickEventHandler::PickEventHandler(str="<<str<<", operation="<<operation<<", jumpData.relativeJump="<<jumpData.relativeJump<<", jumpData.="<<jumpData.slideNum<<", jumpData.layerNum="<<jumpData.layerNum<<std::endl; 40 } 41 42 PickEventHandler::PickEventHandler(const osgPresentation::KeyPosition& keyPos, const JumpData& jumpData): 43 _keyPos(keyPos), 44 _operation(osgPresentation::EVENT), 45 _jumpData(jumpData), 46 _drawablesOnPush() 47 { 48 OSG_INFO<<"PickEventHandler::PickEventHandler(keyPos="<<keyPos._key<<", jumpData.relativeJump="<<jumpData.relativeJump<<", jumpData.="<<jumpData.slideNum<<", jumpData.layerNum="<<jumpData.layerNum<<std::endl; 49 } 50 51 52 bool PickEventHandler::handle(const osgGA::GUIEventAdapter& ea,osgGA::GUIActionAdapter& aa, osg::Object*, osg::NodeVisitor* nv) 53 { 54 if (ea.getHandled()) return false; 55 56 switch(ea.getEventType()) 57 { 58 case(osgGA::GUIEventAdapter::MOVE): 59 case(osgGA::GUIEventAdapter::PUSH): 60 case(osgGA::GUIEventAdapter::DRAG): 61 case(osgGA::GUIEventAdapter::RELEASE): 62 { 63 if(ea.getEventType() == osgGA::GUIEventAdapter::PUSH) 64 { 65 _drawablesOnPush.clear(); 66 } 67 osgViewer::Viewer* viewer = dynamic_cast<osgViewer::Viewer*>(&aa); 68 osgUtil::LineSegmentIntersector::Intersections intersections; 69 if (viewer->computeIntersections(ea, nv->getNodePath(), intersections)) 70 { 71 for(osgUtil::LineSegmentIntersector::Intersections::iterator hitr=intersections.begin(); 72 hitr!=intersections.end(); 73 ++hitr) 74 { 75 if (_operation == FORWARD_MOUSE_EVENT) 76 { 77 osg::ref_ptr<osgGA::GUIEventAdapter> cloned_ea = osg::clone(&ea); 78 79 // clear touch-data as this prevents sending the event as mouse-event 80 cloned_ea->setTouchData(NULL); 81 82 // reproject mouse-coord 83 const osg::BoundingBox bb(hitr->drawable->getBoundingBox()); 84 const osg::Vec3& p(hitr->localIntersectionPoint); 85 86 float transformed_x = (p.x() - bb.xMin()) / (bb.xMax() - bb.xMin()); 87 float transformed_y = (p.z() - bb.zMin()) / (bb.zMax() - bb.zMin()); 88 89 cloned_ea->setX(ea.getXmin() + transformed_x * (ea.getXmax() - ea.getXmin())); 90 cloned_ea->setY(ea.getYmin() + transformed_y * (ea.getYmax() - ea.getYmin())); 91 cloned_ea->setMouseYOrientation(osgGA::GUIEventAdapter::Y_INCREASING_UPWARDS); 92 93 94 95 // std::cout << transformed_x << "/" << transformed_x << " -> " << cloned_ea->getX() << "/" <<cloned_ea->getY() << std::endl; 96 97 SlideEventHandler::instance()->forwardEventToDevices(cloned_ea.get()); 98 } 99 else if ((_operation == FORWARD_TOUCH_EVENT) && ea.isMultiTouchEvent()) 100 { 101 osg::ref_ptr<osgGA::GUIEventAdapter> cloned_ea = osg::clone(&ea); 102 cloned_ea->setMouseYOrientation(osgGA::GUIEventAdapter::Y_INCREASING_DOWNWARDS); 103 104 osgGA::GUIEventAdapter::TouchData* touch_data = cloned_ea->getTouchData(); 105 106 107 108 // reproject touch-points 109 const osg::BoundingBox bb(hitr->drawable->getBoundingBox()); 110 111 osg::Camera* camera = viewer->getCamera(); 112 osg::Matrix matrix = osg::computeLocalToWorld(hitr->nodePath, false) * camera->getViewMatrix() * camera->getProjectionMatrix(); 113 matrix.postMult(camera->getViewport()->computeWindowMatrix()); 114 115 osg::Matrixd inverse; 116 inverse.invert(matrix); 117 118 // transform touch-points into local coord-system 119 unsigned int j(0); 120 for(osgGA::GUIEventAdapter::TouchData::iterator i = touch_data->begin(); i != touch_data->end(); ++i, ++j) 121 { 122 osg::Vec3 local = osg::Vec3(i->x, i->y, 0) * inverse; 123 124 // std::cout << local << " hit: " << hitr->localIntersectionPoint << std::endl; 125 126 local.x() = (local.x() - bb.xMin()) / (bb.xMax() - bb.xMin()); 127 local.z() = (local.z() - bb.zMin()) / (bb.zMax() - bb.zMin()); 128 129 local.x() = (ea.getXmin() + local.x() * (ea.getXmax() - ea.getXmin())); 130 local.z() = (ea.getYmin() + local.z() * (ea.getYmax() - ea.getYmin())); 131 132 // std::cout << ea.getX() << "/" << ea.getY() << " -- " << i->x << " " << i->y << " -> " << local.x() <<"/" << local.z() << std::endl; 133 134 i->x = local.x(); 135 i->y = 1 + local.z(); // no idea why I have to add 1 to get y in the range [0..1] 136 } 137 138 139 // std::cout << transformed_x << "/" << transformed_x << " -> " << cloned_ea->getX() << "/" <<cloned_ea->getY() << std::endl; 140 141 142 SlideEventHandler::instance()->forwardEventToDevices(cloned_ea.get()); 143 } 144 else 145 { 146 if (ea.getEventType()==osgGA::GUIEventAdapter::PUSH) 147 { 148 _drawablesOnPush.insert( hitr->drawable.get() ); 149 } 150 else if (ea.getEventType()==osgGA::GUIEventAdapter::MOVE) 151 { 152 OSG_INFO<<"Tooltip..."<<std::endl; 153 } 154 else if (ea.getEventType()==osgGA::GUIEventAdapter::RELEASE) 155 { 156 if (_drawablesOnPush.find(hitr->drawable.get()) != _drawablesOnPush.end()) 157 doOperation(); 158 return true; 159 } 160 } 161 } 162 } 163 break; 164 } 165 case(osgGA::GUIEventAdapter::KEYDOWN): 166 { 167 //OSG_NOTICE<<"PickEventHandler KEYDOWN "<<(char)ea.getKey()<<std::endl; 168 //if (object) OSG_NOTICE<<" "<<object->className()<<std::endl; 169 break; 170 } 171 default: 172 break; 173 } 174 return false; 175 } 176 177 void PickEventHandler::getUsage(osg::ApplicationUsage& /*usage*/) const 178 { 179 } 180 181 void PickEventHandler::doOperation() 182 { 183 switch(_operation) 184 { 185 case(osgPresentation::RUN): 186 { 187 OSG_NOTICE<<"Run "<<_command<<std::endl; 188 189 #if 0 190 osgDB::FilePathList& paths = osgDB::getDataFilePathList(); 191 if (!paths.empty()) 192 { 193 #ifdef _WIN32 194 std::string delimintor(";"); 195 #else 196 std::string delimintor(":"); 197 #endif 198 std::string filepath("OSG_FILE_PATH="); 199 200 bool needDeliminator = false; 201 for(osgDB::FilePathList::iterator itr = paths.begin(); 202 itr != paths.end(); 203 ++itr) 204 { 205 if (needDeliminator) filepath += delimintor; 206 filepath += *itr; 207 needDeliminator = true; 208 } 209 putenv( (char*) filepath.c_str()); 210 211 std::string binpath("PATH="); 212 char* path = getenv("PATH"); 213 if (path) binpath += path; 214 215 needDeliminator = true; 216 for(osgDB::FilePathList::iterator itr = paths.begin(); 217 itr != paths.end(); 218 ++itr) 219 { 220 if (needDeliminator) binpath += delimintor; 221 binpath += *itr; 222 needDeliminator = true; 223 } 224 putenv( (char*) binpath.c_str()); 225 226 } 227 #endif 228 229 bool commandRunsInBackground = (_command.find("&")!=std::string::npos); 230 231 int result = system(_command.c_str()); 232 233 OSG_INFO<<"system("<<_command<<") result "<<result<<std::endl; 234 235 if (commandRunsInBackground) 236 { 237 // Sleep briefly while command runs in background to give it a chance to open 238 // a window and obscure this present3D's window avoiding this present3D from 239 // rendering anything new before the new window opens. 240 OpenThreads::Thread::microSleep(500000); // half second sleep. 241 } 242 243 break; 244 } 245 case(osgPresentation::LOAD): 246 { 247 OSG_NOTICE<<"Load "<<_command<<std::endl; 248 break; 249 } 250 case(osgPresentation::EVENT): 251 { 252 OSG_NOTICE<<"Event "<<_keyPos._key<<" "<<_keyPos._x<<" "<<_keyPos._y<<std::endl; 253 if (SlideEventHandler::instance()) SlideEventHandler::instance()->dispatchEvent(_keyPos); 254 break; 255 } 256 case(osgPresentation::JUMP): 257 { 258 OSG_INFO<<"Requires jump "<<std::endl; 259 break; 260 } 261 case(osgPresentation::FORWARD_MOUSE_EVENT): 262 case(osgPresentation::FORWARD_TOUCH_EVENT): 263 break; 264 } 265 266 if (_jumpData.requiresJump()) 267 { 268 _jumpData.jump(SlideEventHandler::instance()); 269 } 270 else 271 { 272 OSG_INFO<<"No jump required."<<std::endl; 273 } 274 } 275 276