CameraNode.hh

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/*===========================================================================*\
 *
 *   $Revision$
 *   $Date$
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\*===========================================================================*/
 
 
 
 
 
//=============================================================================
//
//  CLASS CameraNode
//
//=============================================================================
 
 
#ifndef ACG_CAMERAVIS_NODE_HH
#define ACG_CAMERAVIS_NODE_HH
 
//== INCLUDES =================================================================
 
 
#include <ACG/Scenegraph/BaseNode.hh>
#include <ACG/Scenegraph/DrawModes.hh>
#include <ACG/GL/GLPrimitives.hh>
#include <ACG/GL/globjects.hh>
#include <string>
#include <vector>
 
#include <ACG/Math/QuaternionT.hh>
 
#include <OpenFlipper/common/ObjectTypeDLLDefines.hh>
 
//== NAMESPACES ===============================================================
 
namespace ACG {
namespace SceneGraph {
 
//== CLASS DEFINITION =========================================================
 
 
class OBJECTTYPEDLLEXPORT CameraNode: public BaseNode {
 
public:
 
    CameraNode( BaseNode* _parent = 0, std::string _name = "<CameraVis>");
 
    virtual ~CameraNode();
 
    ACG_CLASSNAME( CameraNode);
 
    DrawModes::DrawMode availableDrawModes() const override;
 
    void boundingBox(Vec3d& _bbMin, Vec3d& _bbMax) override;
 
    void draw(GLState& _state, const DrawModes::DrawMode& _drawMode) override;
 
    void getRenderObjects(IRenderer* _renderer, GLState& _state, const DrawModes::DrawMode& _drawMode, const Material* _mat) override;
 
    void pick(GLState& _state, PickTarget _target) override;
 
    void setModelView(ACG::GLMatrixd _modelView) { modelView_ = _modelView; modelViewInv_ = _modelView; modelViewInv_.invert(); update_vbo_ = true; }
 
    const ACG::GLMatrixd& modelview() const {return modelView_;}
 
    void setProjection(ACG::GLMatrixd _projection) { projection_ = _projection; update_vbo_ = true; }
 
    const ACG::GLMatrixd& projection() const {return projection_;}
 
    OM_DEPRECATED("setSize() is redundant, because it is already defined by the projection matrix.")
    void setSize(int _w, int _h) { /*obsolete*/ }
 
    void setEncodedView(QString _encodedView) { encodedView_ = _encodedView; }
 
    OM_DEPRECATED("setFarPlane() is redundant, because it is already defined by the projection matrix.")
    void setFarPlane(double _far) { /*obsolete*/ }
 
    OM_DEPRECATED("setNearPlane() is redundant, because it is already defined by the projection matrix.")
    void setNearPlane(double _near) { /*obsolete*/ }
 
    QString getEncodedView() { return encodedView_; }
 
    void showFrustum(bool _showFrustum) { showFrustum_ = _showFrustum; }
 
    bool showFrustum() { return showFrustum_; }
 
 
private:
 
    void updateVBO();
 
    void updateBoundingBoxes();
 
    // recalculate frustum positions in world space
    void updateFrustumWS();
 
    OpenMesh::Vec3d bbmin_;
    OpenMesh::Vec3d bbmax_;
 
    ACG::GLMatrixd modelView_;
    ACG::GLMatrixd modelViewInv_;
    ACG::GLMatrixd projection_;
 
    GLCylinder* cylinder_;
    GLCone*     cone_;
    float       axis_length_;
 
    GeometryBuffer      vbo_;
    IndexBuffer         ibo_;
    VertexDeclaration   vdecl_;
    bool                update_vbo_;
    std::vector<Vec4f>  vboData_; // 8 frustum vertices + camera position
    int                 offsetTris_; // offsets into index buffer
    int                 offsetLines_;
    int                 offsetFront_;
 
    QString encodedView_;
 
    bool showFrustum_;
};
 
 
 
//=============================================================================
} // namespace SceneGraph
} // namespace ACG
 
//=============================================================================
#endif // ACG_CameraVis_NODE_HH
//=============================================================================