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

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

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# window_manualupdate.cpp Example File

simplewindow/window_manualupdate.cpp

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      #include "window_manualupdate.h"
      #include <QOpenGLContext>
      #include <Q3DSSurfaceViewer>
      #include <Q3DSPresentation>

      // Here the window implementation drives rendering by manually calling
      // Q3DSSurfaceViewer::update() as seen fit.

      // It also relies on the default of autoSize==true (meaning the rendering
      // is automatically following the QWindow size).

      ManualUpdateWindow::ManualUpdateWindow()
      {
          setSurfaceType(QSurface::OpenGLSurface);
          m_context = new QOpenGLContext(this);
          m_context->create();
      }

      void ManualUpdateWindow::update()
      {
          if (isExposed() && m_viewer) {
              m_viewer->update();
              // render continuously
              requestUpdate();
          }
      }

      bool ManualUpdateWindow::event(QEvent *e)
      {
          if (e->type() == QEvent::Expose || e->type() == QEvent::UpdateRequest)
              update();

          return QWindow::event(e);
      }

      void ManualUpdateWindow::keyPressEvent(QKeyEvent *e)
      {
          m_viewer->presentation()->keyPressEvent(e);
      }

      void ManualUpdateWindow::keyReleaseEvent(QKeyEvent *e)
      {
          m_viewer->presentation()->keyReleaseEvent(e);
      }

      void ManualUpdateWindow::mousePressEvent(QMouseEvent *e)
      {
          m_viewer->presentation()->mousePressEvent(e);
      }

      void ManualUpdateWindow::mouseMoveEvent(QMouseEvent *e)
      {
          // Moves must be forwarded even when no button is down; the
          // default QWindow behavior is just what we need in this respect.
          m_viewer->presentation()->mouseMoveEvent(e);
      }

      void ManualUpdateWindow::mouseReleaseEvent(QMouseEvent *e)
      {
          m_viewer->presentation()->mouseReleaseEvent(e);
      }

      void ManualUpdateWindow::mouseDoubleClickEvent(QMouseEvent *e)
      {
          m_viewer->presentation()->mouseDoubleClickEvent(e);
      }

      #if QT_CONFIG(wheelevent)
      void ManualUpdateWindow::wheelEvent(QWheelEvent *e)
      {
          m_viewer->presentation()->wheelEvent(e);
      }
      #endif