MRMoveObjectByMouse.h

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#pragma once
#include "MRViewer/MRStatePlugin.h"
#include "MRViewer/MRMoveObjectByMouseImpl.h"
#include "MRViewer/MRUIStyle.h"
#include "MRMesh/MRPlane3.h"
#include "MRMesh/MRAffineXf3.h"
#include "MRCommonPlugins/exports.h"
#include "imgui.h"
 
namespace MR
{
 
class Object;
 
class MoveObjectByMouse : public StateListenerPlugin<DragStartListener, DragListener, DragEndListener, PostDrawListener>
{
public:
    MoveObjectByMouse();
    ~MoveObjectByMouse();
 
    MRCOMMONPLUGINS_API static MoveObjectByMouse* instance();
 
    virtual bool onDisable_() override;
    virtual void drawDialog( float menuScaling, ImGuiContext* ) override;
 
    virtual bool blocking() const override { return false; };
 
private:
    // Transformation mode
    enum class XfMode { Move, Rotate, Scale };
    // Transformation target: pick an object or move selected object(s)
    enum class XfTarget { Picked, Selected };
 
    virtual bool onDragStart_( MouseButton btn, int modifiers ) override;
    virtual bool onDrag_( int x, int y ) override;
    virtual bool onDragEnd_( MouseButton btn, int modifiers ) override;
    virtual void postDraw_() override;
 
    // Same as basic implementation but allows to move selected objects together by holding Shift
    class MoveObjectByMouseWithSelected : public MoveObjectByMouseImpl
    {
    protected:
        TransformMode pick_( MouseButton button, int modifiers,
            std::vector<std::shared_ptr<Object>>& objects, Vector3f& centerPoint, Vector3f& startPoint ) override;
 
    public:
        // Options are provided externally rather than directly from modifiers
        UI::RadioButtonOrModifierState modXfMode{};    // XfMode
        UI::RadioButtonOrModifierState modXfTarget{};  // XfTarget
    } moveByMouse_;
};
 
}