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00025 #include <string>
00026 #include <iostream>
00027
00028 #include <osg/ShapeDrawable>
00029 #include <osg/Geode>
00030 #include <osg/Camera>
00031
00032 #include <osgGA/FlightManipulator>
00033 #include <osgGA/DriveManipulator>
00034 #include <osgGA/UFOManipulator>
00035 #include <osgGA/KeySwitchMatrixManipulator>
00036 #include <osgGA/StateSetManipulator>
00037 #include <osgGA/AnimationPathManipulator>
00038 #include <osgGA/TerrainManipulator>
00039 #include <osgViewer/ViewerEventHandlers>
00040 #include <osgViewer/View>
00041
00042 #include <osgDB/ReadFile>
00043
00044 #include "exceptions/WGEInitFailed.h"
00045 #include "WGE2DManipulator.h"
00046 #include "WGENoOpManipulator.h"
00047 #include "WGEZoomTrackballManipulator.h"
00048 #include "WPickHandler.h"
00049 #include "../common/WConditionOneShot.h"
00050
00051 #include "WGEViewer.h"
00052
00053 WGEViewer::WGEViewer( std::string name, osg::ref_ptr<osg::Referenced> wdata, int x, int y,
00054 int width, int height, WGECamera::ProjectionMode projectionMode )
00055 : WGEGraphicsWindow( wdata, x, y, width, height ),
00056 boost::enable_shared_from_this< WGEViewer >(),
00057 m_name( name ),
00058 m_rendered( WBoolFlag::SPtr( new WBoolFlag( new WConditionOneShot(), false ) ) )
00059 {
00060 try
00061 {
00062 #ifndef __APPLE__
00063 m_View = osg::ref_ptr<osgViewer::View>( new osgViewer::View );
00064 #else
00065
00066 m_View = osg::ref_ptr<osgViewer::Viewer>( new osgViewer::Viewer );
00067 #endif
00068
00069 m_View->setCamera( new WGECamera( width, height, projectionMode ) );
00070 m_queryCallback = new QueryCallback( m_View->getCamera(), m_rendered );
00071 m_View->getCamera()->setInitialDrawCallback( m_queryCallback );
00072
00073 #ifndef __APPLE__
00074 m_View->getCamera()->setGraphicsContext( m_GraphicsContext.get() );
00075 #else
00076 m_View->getCamera()->setGraphicsContext( m_GraphicsWindow.get() );
00077 #endif
00078
00079 switch( projectionMode )
00080 {
00081 case( WGECamera::ORTHOGRAPHIC ):
00082 m_pickHandler = new WPickHandler( name );
00083 m_View->addEventHandler( m_pickHandler );
00084 if( name != std::string( "main" ) )
00085 break;
00086 case( WGECamera::PERSPECTIVE ):
00087
00088 m_View->setCameraManipulator( new WGEZoomTrackballManipulator() );
00089
00090 m_View->setLightingMode( osg::View::HEADLIGHT );
00091
00092 break;
00093 case( WGECamera::TWO_D ):
00094
00095 break;
00096 case( WGECamera::TWO_D_UNIT ):
00097
00098 m_View->setCameraManipulator( new WGENoOpManipulator() );
00099 break;
00100 default:
00101 throw WGEInitFailed( std::string( "Unknown projection mode" ) );
00102 }
00103
00104
00105 m_View->addEventHandler( new osgViewer::StatsHandler );
00106 }
00107 catch( ... )
00108 {
00109 throw WGEInitFailed( std::string( "Initialization of WGEViewer failed" ) );
00110 }
00111 }
00112
00113 WGEViewer::~WGEViewer()
00114 {
00115
00116 close();
00117 }
00118
00119 #ifdef __APPLE__
00120 osg::ref_ptr<osgViewer::Viewer>
00121 #else
00122 osg::ref_ptr<osgViewer::View>
00123 #endif
00124 WGEViewer::getView()
00125 {
00126 return m_View;
00127 }
00128
00129 void WGEViewer::setCameraManipulator( osg::ref_ptr<osgGA::MatrixManipulator> manipulator )
00130 {
00131 m_View->setCameraManipulator( manipulator );
00132
00133 }
00134
00135 osg::ref_ptr<osgGA::MatrixManipulator> WGEViewer::getCameraManipulator()
00136 {
00137 return m_View->getCameraManipulator();
00138 }
00139
00140 void WGEViewer::setCamera( osg::ref_ptr<osg::Camera> camera )
00141 {
00142 m_View->setCamera( camera );
00143
00144 }
00145
00146 osg::ref_ptr<osg::Camera> WGEViewer::getCamera()
00147 {
00148 return m_View->getCamera();
00149 }
00150
00151 void WGEViewer::setScene( osg::ref_ptr< WGEGroupNode > node )
00152 {
00153 m_View->setSceneData( node );
00154 m_scene = node;
00155 }
00156
00157 osg::ref_ptr< WGEGroupNode > WGEViewer::getScene()
00158 {
00159 return m_scene;
00160 }
00161
00162 void WGEViewer::setBgColor( const WColor& bgColor )
00163 {
00164 m_View->getCamera()->setClearColor( bgColor );
00165 }
00166
00167 void WGEViewer::paint()
00168 {
00169 #ifdef __APPLE__
00170 m_View->frame();
00171 #endif
00172 }
00173
00174 void WGEViewer::resize( int width, int height )
00175 {
00176 m_View->getEventQueue()->windowResize( 0, 0, width, height );
00177
00178 WGEGraphicsWindow::resize( width, height );
00179
00180
00181 m_View->getCamera()->setViewport( 0, 0, width, height );
00182 WGECamera* camera = dynamic_cast< WGECamera* >( m_View->getCamera() );
00183 if( camera )
00184 {
00185 camera->resize();
00186 }
00187 }
00188
00189 void WGEViewer::close()
00190 {
00191
00192 WGEGraphicsWindow::close();
00193 }
00194
00195 std::string WGEViewer::getName() const
00196 {
00197 return m_name;
00198 }
00199
00200 osg::ref_ptr< WPickHandler > WGEViewer::getPickHandler()
00201 {
00202 return m_pickHandler;
00203 }
00204
00205 void WGEViewer::reset()
00206 {
00207 m_View->home();
00208 }
00209
00210 std::string WGEViewer::getOpenGLVendor() const
00211 {
00212 return m_queryCallback->getVendor();
00213 }
00214
00215 WBoolFlag::SPtr WGEViewer::isFrameRendered() const
00216 {
00217 return m_rendered;
00218 }
00219
00220 WGEViewer::QueryCallback::QueryCallback( osg::ref_ptr<osg::Camera> camera, WBoolFlag::SPtr run ):
00221 m_vendor( "" ),
00222 m_run( run ),
00223 m_camera( camera )
00224 {
00225
00226 }
00227
00228 WGEViewer::QueryCallback::~QueryCallback()
00229 {
00230
00231 }
00232
00233 void WGEViewer::QueryCallback::operator()( osg::RenderInfo& ) const
00234 {
00235 const GLubyte* vendor = glGetString( GL_VENDOR );
00236 m_vendor = reinterpret_cast< const char* >( vendor );
00237
00238
00239 m_camera->setInitialDrawCallback( NULL );
00240 m_run->set( true );
00241 }
00242
00243 std::string WGEViewer::QueryCallback::getVendor() const
00244 {
00245 return m_vendor;
00246 }
00247