FnGLScalePlaneHandle.h

// Copyright (c) 2017 The Foundry Visionmongers Ltd. All Rights Reserved.

#ifndef GLSCALEPLANEHANDLE_H_
#define GLSCALEPLANEHANDLE_H_

#include "FnGLTransformManipulator.h"

#include <string>

#include <FnViewer/plugin/FnManipulatorHandle.h>
#include <FnViewer/plugin/FnMathTypes.h>
#include <FnViewer/utils/FnDrawable.h>

class GLScalePlaneHandle :
        public Foundry::Katana::ViewerUtils::GLTransformManipulatorHandle
{
public:
    GLScalePlaneHandle();

    virtual ~GLScalePlaneHandle();

    static Foundry::Katana::ViewerAPI::ManipulatorHandle* create()
    {
        return new GLScalePlaneHandle();
    }

    static void flush(){}

    void draw();

    void pickerDraw(int64_t pickerId);

    void setup(const IMATH_NAMESPACE::V3d& normal);

    virtual FnKat::ViewerUtils::Orientation getOrientation()
    {
        return FnKat::ViewerUtils::OBJECT;
    }

protected:
    virtual std::string getComponentName() { return "scale"; }

    bool getDraggingPlane(
        Foundry::Katana::ViewerAPI::Vec3d& origin,
        Foundry::Katana::ViewerAPI::Vec3d& normal);

    void drag(const Foundry::Katana::ViewerAPI::Vec3d& initialPointOnPlane,
              const Foundry::Katana::ViewerAPI::Vec3d& previousPointOnPlane,
              const Foundry::Katana::ViewerAPI::Vec3d& currentPointOnPlane,
              const Foundry::Katana::ViewerAPI::Vec2i& initialMousePosition,
              const Foundry::Katana::ViewerAPI::Vec2i& previousMousePosition,
              const Foundry::Katana::ViewerAPI::Vec2i& currentMousePosition,
              bool isFinal);

    void applyXformToLocation(const std::string& locationPath,
                              const IMATH_NAMESPACE::M44d& xform,
                              bool isFinal);

private:
    void initMesh();

    Foundry::Katana::ViewerUtils::Drawable m_mesh;
    IMATH_NAMESPACE::M44d m_meshXform;

    IMATH_NAMESPACE::V3d m_normal;

    Foundry::Katana::ViewerAPI::Vec4f m_color;

    Foundry::Katana::ViewerAPI::Vec3d m_originWorldSpace;
    Foundry::Katana::ViewerAPI::Vec3d m_normalWorldSpace;

    bool m_isDragInProgress;
};

#endif  // GLSCALEPLANEHANDLE_H_