main.cpp Example File

simplewindow/main.cpp

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  #include <QGuiApplication>
  #include <QCommandLineParser>
  #include <QDebug>

  #include <q3dsruntimeglobal.h>
  #include <Q3DSSurfaceViewer>
  #include <Q3DSPresentation>
  #include <Q3DSDataInput>

  #include "window_manualupdate.h"
  #include "window_autoupdate.h"

  int main(int argc, char *argv[])
  {
      QGuiApplication app(argc, argv);
      QSurfaceFormat::setDefaultFormat(Q3DS::surfaceFormat());

      QCommandLineParser parser;
      QCommandLineOption multiWindowOption("multi", "Multiple windows");
      parser.addOption(multiWindowOption);
      parser.process(app);

      ManualUpdateWindow w;
      w.setTitle(QLatin1String("Qt 3D Studio plain QWindow Example"));
      Q3DSSurfaceViewer viewer;
      QObject::connect(&viewer, &Q3DSSurfaceViewer::errorChanged, &viewer, [&viewer] {
          const QString msg = viewer.error();
          if (!msg.isEmpty())
              qWarning() << msg;
      });

      // The presentation has a data input entry "di_text" for the textstring
      // property of one of the Text nodes. Provide a custom value. Do this in a
      // manner so that the value is set even when doing a Reload or changing the
      // presentation object's source.
      Q3DSDataInput dataInput(viewer.presentation(), QLatin1String("di_text"));
      QObject::connect(&viewer, &Q3DSSurfaceViewer::presentationLoaded, &viewer, [&dataInput] {
          dataInput.setValue(QLatin1String("Hello world"));
      });

      viewer.presentation()->setSource(QUrl(QLatin1String("qrc:/barrel.uip")));
      viewer.create(&w, w.context());
      w.setViewer(&viewer);
      w.resize(1024, 768);
      w.show();

      QScopedPointer<AutoUpdateWindow> w2;
      QScopedPointer<Q3DSSurfaceViewer> viewer2;
      if (parser.isSet(multiWindowOption)) {
          w2.reset(new AutoUpdateWindow);
          viewer2.reset(new Q3DSSurfaceViewer);
          viewer2->presentation()->setSource(QUrl(QLatin1String("qrc:/barrel.uip")));
          // change from the default -1 (auto-update disabled) to an interval of
          // 0 since AutoUpdateWindow does not do anything on its own that would
          // lead to calling update()
          viewer2->setUpdateInterval(0);
          viewer2->create(w2.data(), w2->context());
          w2->resize(800, 600);
          w2->show();
      }

      return app.exec();
  }