#ifndef MV2D_IHASMOVEABLENODES_H
#define MV2D_IHASMOVEABLENODES_H

#include <Indoor/geo/Point2.h>
#include "../MapView2D.h"

/** the selectable/moveable node */
struct MoveableNode {

	/** user-defined index */
	int userIdx;

	/** the node's position */
	Point2 pos;


	/** ctor */
	MoveableNode(const int userIdx, const Point2 pos) : userIdx(userIdx), pos(pos) {;}

};

/**
 * base for all 2D elements that have selectable and moveable nodes
 * the ToolSelector is able to get, select, and move those nodes
 */
class HasMoveableNodes {

protected:

	/** currently selected node */
	int selectedUserIdx = -1;

public:


	/** get a list of all nodes that are selectable / moveable */
	virtual std::vector<MoveableNode> getMoveableNodes() const = 0;

	/** the given node was moved */
	virtual void onNodeMove(MapView2D* v, const int userIdx, const Point2 newPos) = 0;


	/** the given node was selected */
	virtual void onNodeSelect(MapView2D* v, const int userIdx) {
		(void) v;
		this->selectedUserIdx = userIdx;
	}

	/** unselect any selected node */
	virtual void onNodeUnselect(MapView2D* v) {
		(void) v;
		this->selectedUserIdx = -1;
	}

	/** get the currently selected node */
	virtual int getSelectedNode() const {
		return selectedUserIdx;
	}



};

#endif // MV2D_IHASMOVEABLENODES_H