ui3dviewerbody.h

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#pragma once

/*+
________________________________________________________________________

 (C) dGB Beheer B.V.; (LICENSE) http://opendtect.org/OpendTect_license.txt
 Author:        K. Tingdahl
 Date:          Dec 2011
________________________________________________________________________

-*/

#include "uiobjbody.h"

#include "mousecursor.h"
#include "refcount.h"
#include "visosg.h"
#include "uieventfilter.h"

class QGestureEvent;

namespace visBase
{
    class Axes;
    class Camera;
    class PolygonSelection;
    class Scene;
    class SceneColTab;
    class Transformation;
    class ThumbWheel;
    class DataObjectGroup;
}


namespace osgViewer { class CompositeViewer; class View; class GraphicsWindow; }
namespace osgGeo { class TrackballManipulator; }

class ui3DViewer;
class TrackBallManipulatorMessenger;
class KeyBindMan;
class uiMouseEventBlockerByGestures;
class SwapCallback;

namespace osg
{
    class Group;
    class GraphicsContext;
    class Camera;
    class MatrixTransform;
    class Projection;
    class Vec3f;
    class Viewport;
}

namespace osgViewer { class View; }


mClass(uiOSG) ui3DViewerBody : public uiObjectBody
{ mODTextTranslationClass(ui3DViewerBody);
    friend class TrackBallManipulatorMessenger;

public:
                                ui3DViewerBody(ui3DViewer&,uiParent*);
    virtual                     ~ui3DViewerBody();

    void                        viewAll(bool animate);

    void                        setSceneID(int);
    visBase::Scene*             getScene()              { return scene_; }
    const visBase::Scene*       getScene() const        { return scene_; }

    bool                        serializeScene(const char*) const;

    void                        setBackgroundColor(const Color&);
    Color                       getBackgroundColor() const;
    Geom::Size2D<int>           getViewportSizePixels() const;

    float                       getMouseWheelZoomFactor() const;
    void                        setMouseWheelZoomFactor(float);

    void                        setReversedMouseWheelDirection(bool);
    bool                        getReversedMouseWheelDirection() const;

    void                        setHomePos(const IOPar&);
    void                        resetToHomePosition();

    void                        toggleCameraType();
    bool                        isCameraPerspective() const;
    bool                        isCameraOrthographic() const;

    void                        align();
    void                        viewPlaneX();
    void                        viewPlaneY();
    void                        viewPlaneZ();
    void                        viewPlaneInl();
    void                        viewPlaneCrl();
    void                        viewPlaneN();
    void                        viewPlaneYZ();

    void                        uiRotate(float angle,bool horizontal);
    void                        uiZoom(float rel,const osg::Vec3f* dir=0);
    void                        setCameraZoom(float val);
    float                       getCameraZoom() const;

                                //Not sure were to put these
    bool                        isViewMode() const;
    virtual void                setViewMode(bool viewmode,bool trigger);

    Coord3                      getCameraPosition() const;
    visBase::Camera*            getVisCamera()          { return camera_; }

    virtual void                reSizeEvent(CallBacker*);
    void                        toggleViewMode(CallBacker*);

    enum WheelMode              { Never, Always, OnHover };
    void                        setWheelDisplayMode(WheelMode);
    WheelMode                   getWheelDisplayMode() const;

    void                        setAnimationEnabled(bool);
    bool                        isAnimationEnabled() const;
    void                        showRotAxis(bool);
    bool                        isAxisShown() const;
    void                        setAnnotColor(const Color&);
    void                        setAnnotationFont(const FontData&);
    visBase::PolygonSelection*  getPolygonSelector();
    visBase::SceneColTab*       getSceneColTab();

    void                        toHomePos();
    void                        saveHomePos();
    bool                        isHomePosEmpty() { return homepos_.isEmpty(); }
    void                        fillCameraPos(IOPar&) const;
    bool                        useCameraPos(const IOPar&);
    const osgViewer::View*      getOsgViewerMainView() const { return view_; }
    const osgViewer::View*      getOsgViewerHudView() const { return hudview_; }
    void                        setScenesPixelDensity(float dpi);

    enum StereoType             { None, RedCyan, QuadBuffer };

    bool                        setStereoType(StereoType);
    StereoType                  getStereoType() const;
    void                        setStereoOffset(float);
    float                       getStereoOffset() const;
    
    void                        updateZDomainInfo();

    void                        setMapView(bool yn);
    bool                        isMapView() const       { return mapview_; }

    KeyBindMan&                 keyBindMan()            { return keybindman_; }

    void                        removeSwapCallback(CallBacker*);

protected:
    void                                enableDragging( bool yn );

    enum ViewModeCursor                 { RotateCursor, PanCursor, ZoomCursor,
                                          HoverCursor };
    virtual void                        setViewModeCursor( ViewModeCursor );

    virtual void                        updateActModeCursor();
    void                                mouseCursorChg(CallBacker*);
    MouseCursor                         actmodecursor_;

    void                                notifyManipulatorMovement(
                                                    float dh,float dv,float df);
    void                                setupTouch();
    void                                setupHUD();
    void                                setupView();
    void                                qtEventCB(CallBacker*);
    void                                setFocusCB(CallBacker*);
    void                                handleGestureEvent(QGestureEvent*);
    static osgViewer::CompositeViewer*  getCompositeViewer();

    void                                glInfoCB(CallBacker*);

    virtual osgViewer::GraphicsWindow&  getGraphicsWindow()     = 0;
    virtual osg::GraphicsContext*       getGraphicsContext()    = 0;

    uiObject&                           uiObjHandle();

    void                                requestRedraw();

    osg::Camera*                        getOsgCamera();
    const osg::Camera*                  getOsgCamera() const;
    void                                setCameraPos(const osg::Vec3f&,
                                                     const osg::Vec3f&,bool);

    void                                thumbWheelRotationCB(CallBacker*);
    void                                enableThumbWheelHandling(bool yn,
                                            const visBase::ThumbWheel* tw=0);

    ui3DViewer&                         handle_;
    IOPar&                              printpar_;

    RefMan<visBase::Camera>             camera_;
    RefMan<visBase::Scene>              scene_;
    RefMan<visBase::ThumbWheel>         horthumbwheel_;
    RefMan<visBase::ThumbWheel>         verthumbwheel_;
    RefMan<visBase::ThumbWheel>         distancethumbwheel_;
    int                                 wheeldisplaymode_;

    osg::Switch*                        offscreenrenderswitch_;
    osgViewer::CompositeViewer*         compositeviewer_;
    osgViewer::View*                    view_;
    osg::Viewport*                      viewport_;
    StereoType                          stereotype_;
    float                               stereooffset_;

    osgViewer::View*                    hudview_;
    osg::Switch*                        offscreenrenderhudswitch_;
    RefMan<visBase::DataObjectGroup>    hudscene_;

    uiEventFilter                       eventfilter_;
    uiMouseEventBlockerByGestures&      mouseeventblocker_;
    RefMan<visBase::Axes>               axes_;
    RefMan<visBase::PolygonSelection>   polygonselection_;
    TrackBallManipulatorMessenger*      manipmessenger_;

    SwapCallback*                       swapcallback_;

    IOPar                               homepos_;
    RefMan<visBase::SceneColTab>        visscenecoltab_;

    KeyBindMan&                         keybindman_;

    bool                                mapview_;
    static bool                         isbadglwarned_;
};