// `Main program' equivalent, creating windows and returning main app frame
bool wxOsgApp::OnInit()
{
if (argc<2)
{
std::cout << wxString(argv[0]).mb_str() <<": requires filename argument." << std::endl;
return false;
}
int width = 800;
int height = 600;
// Create the main frame window
MainFrame *frame = new MainFrame(NULL, wxT("wxWidgets OSG Sample"),
wxDefaultPosition, wxSize(width, height));
// create osg canvas
// - initialize
int *attributes = new int[7];
attributes[0] = int(WX_GL_DOUBLEBUFFER);
attributes[1] = WX_GL_RGBA;
attributes[2] = WX_GL_DEPTH_SIZE;
attributes[3] = 8;
attributes[4] = WX_GL_STENCIL_SIZE;
attributes[5] = 8;
attributes[6] = 0;
OSGCanvas *canvas = new OSGCanvas(frame, wxID_ANY, wxDefaultPosition,
wxSize(width, height), wxSUNKEN_BORDER, wxT("osgviewerWX"), attributes);
GraphicsWindowWX* gw = new GraphicsWindowWX(canvas);
canvas->SetGraphicsWindow(gw);
osgViewer::Viewer *viewer = new osgViewer::Viewer;
viewer->getCamera()->setGraphicsContext(gw);
viewer->getCamera()->setViewport(0,0,width,height);
viewer->addEventHandler(new osgViewer::StatsHandler);
viewer->setThreadingModel(osgViewer::Viewer::SingleThreaded);
// load the scene.
wxString fname(argv[1]);
osg::ref_ptr<osg::Node> loadedModel = osgDB::readNodeFile(std::string(fname.mb_str()));
if (!loadedModel)
{
std::cout << argv[0] <<": No data loaded." << std::endl;
return false;
}
viewer->setSceneData(loadedModel.get());
viewer->setCameraManipulator(new osgGA::TrackballManipulator);
frame->SetViewer(viewer);
/* Show the frame */
frame->Show(true);
return true;
}
// `Main program' equivalent, creating windows and returning main app frame
bool wxOsgApp::OnInit()
{
// copy wxargs to form we can use with osg
std::vector< std::string > arguments;
char *argarray[ 100 ];
for( int ii=0; ii<argc; ii++ )
{
std::string argument = std::string( wxString( argv[ ii ] ).mb_str() );
arguments.push_back( argument );
}
for( unsigned int ii = 0; ii < arguments.size(); ++ii )
{
argarray[ ii ] = const_cast< char* >( arguments[ ii ].c_str() );
}
int argcount = arguments.size();
// parse arguments
if( argcount < 2 )
{
std::cout << arguments[ 0 ] << ": requires filename argument." << std::endl;
return( false );
}
osg::ArgumentParser argparser(&argcount,argarray);
flat_mode_ = argparser.read( "--flat" );
const int width = 800;
const int treeWidth = 300;
const int overallWidth = (width + treeWidth);
const int height = 600;
//
// Create the main osg window
MainFrame * frame = new MainFrame( NULL, wxT( "backdropFX wxpick" ),
wxPoint( 10, 30 ), wxSize( overallWidth, height ) );
// create tree & edit window
_tree = new osgWxTree::TreeControl( frame, wxID_ANY, wxDefaultPosition, wxSize(treeWidth, height),
wxTR_DEFAULT_STYLE | wxTR_HAS_BUTTONS | wxTR_ROW_LINES | wxTR_SINGLE );
_tree->Show( true );
// create osg canvas
int * attributes = new int[ 7 ];
attributes[ 0 ] = int( WX_GL_DOUBLEBUFFER );
attributes[ 1 ] = WX_GL_RGBA;
attributes[ 2 ] = WX_GL_DEPTH_SIZE;
attributes[ 3 ] = 8;
attributes[ 4 ] = WX_GL_STENCIL_SIZE;
attributes[ 5 ] = 8;
attributes[ 6 ] = 0;
OSGCanvas * canvas = new OSGCanvas( frame, wxID_ANY, wxPoint(treeWidth,0),
wxSize( width, height ), wxSUNKEN_BORDER, wxT( "osgviewerWX" ), attributes );
GraphicsWindowWX * gw = new GraphicsWindowWX( canvas );
canvas->SetGraphicsWindow( gw );
// load the scene.
osg::ref_ptr< osg::Group > root = new osg::Group;
root->setName( "wxpick root" );
osg::ref_ptr< osg::Node > loadedModels = osgDB::readNodeFiles( argparser );
if( loadedModels.valid() )
root->addChild( loadedModels.get() );
// Convert loaded data to use shader composition.
{
backdropFX::ShaderModuleVisitor smv;
smv.setAttachMain( false ); // Use bdfx-main
smv.setAttachTransform( false ); // Use bdfx-transform
smv.setSupportSunLighting( true ); // Use shaders that light from the Sun
backdropFX::convertFFPToShaderModules( root.get(), &smv );
}
backdropFXSetUp( root.get(), width, height );
// construct the viewer
osg::ref_ptr< osgViewer::Viewer > viewer = new osgViewer::Viewer;
viewer->getCamera()->setGraphicsContext( gw );
viewer->getCamera()->setViewport( 0, 0, width, height );
viewerSetUp( *viewer, (double)width / (double)height, root.get() );
viewer->addEventHandler( new osgWxTree::PickHandler( _tree ) );
viewer->addEventHandler( new EffectHandler( _tree ) );
viewer->setThreadingModel( osgViewer::Viewer::SingleThreaded );
// populate the ui control
if ( !flat_mode_ )
{
// create a full tree or
osgWxTree::PopulateTreeControlWithNodeVisitor pt( _tree );
root->accept( pt );
}
else
{
// create a flattened tree
osgWxTree::setTreeToFlatGroup( _tree, root.get() );
}
frame->SetViewer( viewer.get() );
frame->Show( true );
return( true );
}