infinipaint/src/DrawingProgram/DrawingProgramSelection.hpp

#pragma once
#include "DrawingProgramCache.hpp"

class DrawingProgram;

class DrawingProgramSelection {
    public:
        DrawingProgramSelection(DrawingProgram& initDrawP);
        void add_from_cam_coord_collider_to_selection(const SCollision::ColliderCollection<float>& cC);
        void deselect_all();
        void update();
        void draw_components(SkCanvas* canvas, const DrawData& drawData);
        void draw_gui(SkCanvas* canvas, const DrawData& drawData);
        bool is_something_selected();
        bool mouse_collided_with_selection();
    private:
        bool mouse_collided_with_selection_aabb();
        bool mouse_collided_with_scale_point();

        void calculate_aabb();
        void rebuild_cam_space();

        SCollision::AABB<WorldScalar> initialSelectionAABB;
        SCollision::ColliderCollection<float> camSpaceSelection;

        WorldVec selectionRectMin;
        WorldVec selectionRectMax;

        CoordSpaceHelper selectionTransformCoords;
        std::unordered_set<CollabListType::ObjectInfoPtr> selectedSet;
        DrawingProgramCache cache;
        DrawingProgram& drawP;

        enum class TransformOperation {
            NONE = 0,
            TRANSLATE,
            SCALE,
            ROTATE
        } transformOpHappening;

        struct ScaleData {
            CoordSpaceHelper startingSelectionTransformCoords;
            WorldVec startPos;
            WorldVec centerPos;
            WorldVec currentPos;
            Vector2f handlePoint;
        } scaleData;
};