/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */

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 *

 * This file incorporates work covered by the following license notice:

 *

 *   Licensed to the Apache Software Foundation (ASF) under one or more

 *   contributor license agreements. See the NOTICE file distributed

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 *   ownership. The ASF licenses this file to you under the Apache

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#ifndef INCLUDED_SVX_DLGCTL3D_HXX

#define INCLUDED_SVX_DLGCTL3D_HXX

#include <vcl/customweld.hxx>

#include <vcl/weld.hxx>

#include <svl/itemset.hxx>

#include <svx/svxdllapi.h>

#include <svx/obj3d.hxx>

#include <basegfx/vector/b3dvector.hxx>

#include <memory>

class FmFormModel;

class FmFormPage;

class E3dView;

class E3dObject;

class E3dScene;

enum class SvxPreviewObjectType { SPHERE, CUBE };

class SAL_WARN_UNUSED UNLESS_MERGELIBS(SVX_DLLPUBLIC) Svx3DPreviewControl : public weld::CustomWidgetController

{

protected:

    std::unique_ptr<FmFormModel> mpModel;

    rtl::Reference<FmFormPage> mxFmPage;

    std::unique_ptr<E3dView> mp3DView;

    rtl::Reference<E3dScene>  mpScene;

    rtl::Reference<E3dObject>  mp3DObj;

    SvxPreviewObjectType    mnObjectType;

    void Construct();

public:

    Svx3DPreviewControl();

    virtual void SetDrawingArea(weld::DrawingArea* pDrawingArea) override;

    virtual ~Svx3DPreviewControl() override;

    virtual void Paint( vcl::RenderContext& rRenderContext, const tools::Rectangle& rRect ) override;

    virtual bool MouseButtonDown( const MouseEvent& rMEvt ) override;

    virtual void Resize() override;

    virtual void SetObjectType(SvxPreviewObjectType nType);

    SvxPreviewObjectType GetObjectType() const { return mnObjectType; }

    SfxItemSet const & Get3DAttributes() const;

    virtual void Set3DAttributes(const SfxItemSet& rAttr);

    void ClearPageView();

};

class SAL_WARN_UNUSED UNLESS_MERGELIBS(SVX_DLLPUBLIC) Svx3DLightControl final : public Svx3DPreviewControl

{

    // Callback for interactive changes

    Link<Svx3DLightControl*,void>  maChangeCallback;

    Link<Svx3DLightControl*,void>  maSelectionChangeCallback;

    // lights

    sal_uInt32                  maSelectedLight;

    // extra objects for light control

    rtl::Reference<E3dObject>   mpExpansionObject;

    rtl::Reference<E3dObject>   mpLampBottomObject;

    rtl::Reference<E3dObject>   mpLampShaftObject;

    std::vector< E3dObject* >   maLightObjects;

    // 3d rotations of object

    double                      mfRotateX;

    double                      mfRotateY;

    double                      mfRotateZ;

    // interaction parameters

    Point                       maActionStartPoint;

    double                      mfSaveActionStartHor;

    double                      mfSaveActionStartVer;

    double                      mfSaveActionStartRotZ;

    bool                        mbMouseMoved : 1;

    bool                        mbMouseCaptured : 1;

    bool                        mbGeometrySelected : 1;

    void Construct2();

    void ConstructLightObjects();

    void AdaptToSelectedLight();

    void TrySelection(Point aPosPixel);

public:

    Svx3DLightControl();

    virtual void SetDrawingArea(weld::DrawingArea* pDrawingArea) override;

    virtual void Paint(vcl::RenderContext& rRenderContext, const tools::Rectangle& rRect) override;

    virtual tools::Rectangle GetFocusRect() override;

    virtual bool MouseButtonDown(const MouseEvent& rMEvt) override;

    virtual bool MouseMove( const MouseEvent& rMEvt ) override;

    virtual bool MouseButtonUp( const MouseEvent& rMEvt ) override;

    virtual void Resize() override;

    virtual void SetObjectType(SvxPreviewObjectType nType) override;

    // register user callback

    void SetChangeCallback(Link<Svx3DLightControl*,void> aNew) { maChangeCallback = aNew; }

    void SetSelectionChangeCallback(Link<Svx3DLightControl*,void> aNew) { maSelectionChangeCallback = aNew; }

    // selection checks

    bool IsSelectionValid();

    bool IsGeometrySelected() const { return mbGeometrySelected; }

    // get/set position of selected lamp in polar coordinates, Hor:[0..360.0[ and Ver:[-90..90] degrees

    void GetPosition(double& rHor, double& rVer);

    void SetPosition(double fHor, double fVer);

    // get/set rotation of 3D object

    void SetRotation(double fRotX, double fRotY, double fRotZ);

    void GetRotation(double& rRotX, double& rRotY, double& rRotZ);

    void SelectLight(sal_uInt32 nLightNumber);

    virtual void Set3DAttributes(const SfxItemSet& rAttr) override;

    sal_uInt32 GetSelectedLight() const { return maSelectedLight; }

    // light data access

    bool GetLightOnOff(sal_uInt32 nNum) const;

    Color GetLightColor(sal_uInt32 nNum) const;

    basegfx::B3DVector GetLightDirection(sal_uInt32 nNum) const;

};

class SAL_WARN_UNUSED UNLESS_MERGELIBS(SVX_DLLPUBLIC) SvxLightCtl3D

{

    // local controls

    Svx3DLightControl& mrLightControl;

    weld::Scale& mrHorScroller;

    weld::Scale& mrVerScroller;

    weld::Button& mrSwitcher;

    // callback for interactive changes

    Link<SvxLightCtl3D*,void>  maUserInteractiveChangeCallback;

    Link<SvxLightCtl3D*,void>  maUserSelectionChangeCallback;

public:

    SvxLightCtl3D(Svx3DLightControl& rLightControl, weld::Scale& rHori,

               weld::Scale& rVert, weld::Button& rButton);

    // check the selection for validity

    void CheckSelection();

    // bring further settings to the outside world

    Svx3DLightControl& GetSvx3DLightControl() { return mrLightControl; }

    // register user callback

    void SetUserInteractiveChangeCallback(Link<SvxLightCtl3D*,void> aNew) { maUserInteractiveChangeCallback = aNew; }

    void SetUserSelectionChangeCallback(Link<SvxLightCtl3D*,void> aNew) { maUserSelectionChangeCallback = aNew; }

private:

    DECL_DLLPRIVATE_LINK(InternalInteractiveChange, Svx3DLightControl*, void);

    DECL_DLLPRIVATE_LINK(InternalSelectionChange, Svx3DLightControl*, void);

    DECL_DLLPRIVATE_LINK(ScrollBarMove, weld::Scale&, void);

    DECL_DLLPRIVATE_LINK(ButtonPress, weld::Button&, void);

    DECL_DLLPRIVATE_LINK(KeyInput, const KeyEvent&, bool);

    DECL_DLLPRIVATE_LINK(FocusIn, weld::Widget&, void);

    // initialize local parameters

    void Init();

    void move( double fDeltaHor, double fDeltaVer );

};

#endif // _SCH_DLGCTL3D_HXX

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