Reads a PDB file passed via command line and displays its contents using a minimal BALL::VIEW application.

Minimal BALL::VIEW Application

#include <BALL/FORMAT/PDBFile.h>
#include <BALL/KERNEL/system.h>
#include <BALL/STRUCTURE/secondaryStructureProcessor.h>
#include <BALL/VIEW/KERNEL/mainControl.h>
#include <BALL/VIEW/WIDGETS/scene.h>
#include <BALL/VIEW/MODELS/cartoonModel.h>
#include <BALL/VIEW/MODELS/standardColorProcessor.h>

#include <QtWidgets/QApplication>

BALL::System* importPDBFile(const char* fileName)
{
  BALL::System* system = new BALL::System();

  BALL::PDBFile infile;
  infile.open(fileName);
  infile >> *system;

  BALL::FragmentDB db("");
  system->apply(db.normalize_names);
  system->apply(db.build_bonds);

  BALL::SecondaryStructureProcessor modProc;
  system->apply(modProc);

  return system;
}

void showPeptideRepresentation(BALL::System* system, BALL::VIEW::MainControl& control)
{
  control.insert(*system, "PDB File", false);

  auto* scene = new BALL::VIEW::Scene(&control);
  control.setCentralWidget(scene);

  auto& repManager = control.getRepresentationManager();
  auto* rep = repManager.createRepresentation();

  rep->setComposite(system);
  rep->setColorProcessor(new BALL::VIEW::SecondaryStructureColorProcessor());
  rep->setModelProcessor(new BALL::VIEW::AddCartoonModel());

  control.update(*rep);

  repManager.focusRepresentation(*rep);
}

int main(int argc, char* argv[]) 
{
  QApplication app(argc, argv);
  BALL::VIEW::MainControl control;
  control.registerThis();

  showPeptideRepresentation(importPDBFile(argv[1]), control);
  control.show();

  return app.exec();
}