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/* This file is part of the Spring engine (GPL v2 or later), see LICENSE.html */
#ifndef GUI_H
#define GUI_H
#include <list>
#include <boost/signals2/connection.hpp>
#include <boost/signals2/shared_connection_block.hpp>
union SDL_Event;
namespace agui
{
class GuiElement;
class Gui
{
public:
Gui();
virtual ~Gui();
void Clean();
void Draw();
void AddElement(GuiElement*, bool asBackground = false);
/// deletes the element on the next draw
void RmElement(GuiElement*);
void UpdateScreenGeometry(int screenx, int screeny, int screenOffsetX, int screenOffsetY);
bool MouseOverElement(const GuiElement*, int x, int y) const;
private:
bool HandleEvent(const SDL_Event& ev);
boost::signals2::scoped_connection inputCon;
boost::signals2::shared_connection_block inputConBlock;
struct GuiItem
{
GuiItem(GuiElement* el, bool back) : element(el), asBackground(back) {};
GuiElement* element;
bool asBackground;
};
typedef std::list<GuiItem> ElList;
ElList elements;
ElList toBeRemoved;
ElList toBeAdded;
};
extern Gui* gui;
void InitGui();
void FreeGui();
}
#endif
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