add Qt viewport

src/Vtk/vtkQViewport.h

@@ -0,0 +1,69 @@
+#ifndef ULIB_VTK_QVIEWPORT_H
+#define ULIB_VTK_QVIEWPORT_H
+
+#include <QWidget>
+#include <QVTKOpenGLNativeWidget.h>
+
+#include <vtkCornerAnnotation.h>
+#include <vtkOrientationMarkerWidget.h>
+#include <vtkRenderer.h>
+#include <vtkRenderWindow.h>
+#include <vtkSmartPointer.h>
+
+#include "uLibVtkInterface.h"
+
+class vtkProp;
+class vtk3DWidget;
+class vtkRenderWindowInteractor;
+class vtkCameraOrientationWidget;
+
+namespace uLib {
+namespace Vtk {
+
+/**
+ * QViewport is a self-contained Qt widget that embeds a VTK renderer
+ * directly into the Qt application (no separate VTK window).
+ * Puppets and actors are added to the embedded renderer.
+ */
+class QViewport : public QWidget {
+    Q_OBJECT
+public:
+    explicit QViewport(QWidget* parent = nullptr);
+    virtual ~QViewport();
+
+    // Render scene
+    void Render();
+    void Reset();
+    void ZoomAuto();
+
+    // Puppet / prop management
+    void AddPuppet(Puppet &prop);
+    void RemovePuppet(Puppet &prop);
+    void addProp(vtkProp *prop);
+    void RemoveProp(vtkProp *prop);
+
+    // Widget integration
+    void AddWidget(vtk3DWidget *widget);
+
+    // Direct access to VTK internals
+    vtkRenderer*                GetRenderer()    { return m_Renderer; }
+    vtkRenderWindow*            GetRenderWindow();
+    vtkRenderWindowInteractor*  GetInteractor();
+    vtkCornerAnnotation*        GetAnnotation()  { return m_Annotation; }
+    vtkCameraOrientationWidget* GetCameraWidget(){ return m_CameraWidget; }
+    QVTKOpenGLNativeWidget*     GetWidget()      { return m_VtkWidget; }
+
+private:
+    void SetupPipeline();
+
+    QVTKOpenGLNativeWidget*             m_VtkWidget;
+    vtkRenderer*                         m_Renderer;
+    vtkCornerAnnotation*                 m_Annotation;
+    vtkOrientationMarkerWidget*          m_Marker;
+    vtkCameraOrientationWidget*          m_CameraWidget;
+};
+
+} // namespace Vtk
+} // namespace uLib
+
+#endif // ULIB_VTK_QVIEWPORT_H