#ifndef CLASS_SELECTION_HIGHLIGHTER
#define CLASS_SELECTION_HIGHLIGHTER

#include <vector>

#include "graphic/Image.h"

#include "Element.h"
#include "Layer.h"

#define H_SPACE 10
#define V_SPACE 10

#define SELECT_OPACITY 128

/// layer that shows graphic selection highlighter
class SelectionHighlighter : public Layer
{
	private:
	 /// current selected object
	 Element * _sel_elem;

	 /// images that made the highlighter
	 std::vector < graphic::Image * > _images;

	public:
	 /// constructor
	 SelectionHighlighter(std::vector < graphic::Image * > images);
	 /// destroyer
	 ~SelectionHighlighter() { };

	 /// store a pointer to the selected object
	 void SetSelected(Element * obj) { _sel_elem = obj; };
	 /// set the  pointer to the selected object to NULL
	 void ClearSelected() { _sel_elem = NULL; };

	 /// return true if an object is selected
	 bool IsSelected() { return (_sel_elem != NULL); };

	 /// blit part of the layer on a surface, if the surface is NULL blit on screen
	 void BlitLayer(SDL_Rect limits_rect, graphic::Surface * dst_surf = NULL);
};

#endif