ScaleGizmo.hpp

#pragma once
 
#include <Core/Asset/Camera.hpp>
#include <Engine/Scene/CameraComponent.hpp>
#include <Gui/Viewer/Gizmo/Gizmo.hpp>
 
namespace Ra {
namespace Gui {
 
// TODO: find how to apply it in global frame.
class ScaleGizmo : public Gizmo
{
  public:
    // Draw a frame with : 3 RGB cube-shaped arrows and 3 RGB squares
    ScaleGizmo( Engine::Scene::Component* c,
                const Core::Transform& worldTo,
                const Core::Transform& t,
                Mode mode );
 
    void updateTransform( Gizmo::Mode mode,
                          const Core::Transform& worldTo,
                          const Core::Transform& t ) override;
    void selectConstraint( int drawableIndex ) override;
    bool isSelected() override { return m_selectedAxis != -1 || m_selectedPlane != -1; }
    void setInitialState( const Core::Asset::Camera& cam, const Core::Vector2& initialXY ) override;
    Core::Transform mouseMove( const Core::Asset::Camera& cam,
                               const Core::Vector2& nextXY,
                               bool stepped,
                               bool whole ) override;
 
  private:
    Ra::Core::Vector3 m_prevScale;  
    Ra::Core::Vector3 m_startPos;   
    Ra::Core::Vector3 m_startPoint; 
    Core::Vector2 m_initialPix;     
    int m_selectedAxis;             
    int m_selectedPlane;            
    bool m_start { false };         
};
 
} // namespace Gui
} // namespace Ra