main.cpp Example File | Qt 3D Studio Runtime 2.0

Qt 3D Studio Runtime | Qt 3D Studio Runtime: Simple Window Example | main.cpp Example File

Qt 3D Studio Runtime 2.0 Manual

# 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();
      }