G4ToolsSGX11GLES.cc

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// Guy Barrand 12th March 2021
 
#include "G4ToolsSGX11GLES.hh"
 
#include "G4ToolsSGViewer.hh"
 
#include <toolx/X11/sg_viewer>
 
G4ToolsSGX11GLES::G4ToolsSGX11GLES():
parent
("TOOLSSG_X11_GLES",
 "TSG_X11_GLES",
 "TOOLSSG_X11_GLES is a graphics driver based on the g4tools tools/sg scene graph logic where\n\
 the rendering is done with GLES and the windowing is done with X11.",
 parent::threeDInteractive)
,fSGSession(nullptr)
{}
 
G4ToolsSGX11GLES::~G4ToolsSGX11GLES() {
  delete fSGSession;
}
 
void G4ToolsSGX11GLES::Initialise() {
  if(fSGSession) return; //done.
  fSGSession = new toolx::X11::session(G4cout);
  if(!fSGSession->is_valid()) {
    G4cerr << "G4ToolsSGX11GLES::Initialise : session::is_valid() failed." << G4endl;
    delete fSGSession;
    fSGSession = nullptr;
    return;
  }
}
 
G4VSceneHandler* G4ToolsSGX11GLES::CreateSceneHandler(const G4String& a_name) {
  G4VSceneHandler* pScene = new G4ToolsSGSceneHandler(*this,a_name);
  return pScene;
}
 
G4VViewer* G4ToolsSGX11GLES::CreateViewer(G4VSceneHandler& a_scene,const G4String& a_name) {
  if(!fSGSession) Initialise();
  if(!fSGSession) return nullptr;
  G4VViewer* pView =
    new G4ToolsSGViewer<toolx::X11::session,toolx::X11::sg_viewer>
    (*fSGSession,(G4ToolsSGSceneHandler&)a_scene,a_name);
  if (pView) {
    if (pView->GetViewId() < 0) {
      G4cerr <<
      "G4ToolsSGX11GLES::CreateViewer: ERROR flagged by negative"
      " view id in G4ToolsSGViewer creation."
      "\n Destroying view and returning null pointer."
      << G4endl;
      delete pView;
      pView = nullptr;
    }
  }
  if (!pView) {
    G4cerr <<
    "G4ToolsSGX11GLES::CreateViewer: ERROR: null pointer on new G4ToolsSGViewer."
    << G4endl;
  }
  return pView;
}