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#pragma once
#include "../geometry/point2d.hpp"
#include "../graphics/overlay_element.hpp"
#include "../graphics/color.hpp"
#include "../graphics/font_desc.hpp"
#include "../std/map.hpp"
namespace graphics
{
namespace gl
{
class OverlayRenderer;
}
}
namespace gui
{
class Controller;
class Element : public graphics::OverlayElement
{
public:
enum EState
{
EInactive,
EActive,
EPressed,
ESelected
};
protected:
Controller * m_controller;
private:
EState m_state;
mutable map<EState, graphics::FontDesc> m_fonts;
mutable map<EState, graphics::Color> m_colors;
public:
typedef OverlayElement::Params Params;
Element(Params const & p);
void setState(EState state);
EState state() const;
virtual void setFont(EState state, graphics::FontDesc const & font);
graphics::FontDesc const & font(EState state) const;
virtual void setColor(EState state, graphics::Color const & c);
graphics::Color const & color(EState state) const;
/// Implement this method to handle single tap on the GUI element.
virtual bool onTapStarted(m2::PointD const & pt);
virtual bool onTapMoved(m2::PointD const & pt);
virtual bool onTapEnded(m2::PointD const & pt);
virtual bool onTapCancelled(m2::PointD const & pt);
void invalidate();
double visualScale() const;
graphics::OverlayElement * clone(math::Matrix<double, 3, 3> const & m) const;
void draw(graphics::OverlayRenderer * r, math::Matrix<double, 3, 3> const & m) const;
int visualRank() const;
virtual void cache();
/// this method is called upon renderPolicy destruction and should clean
/// all rendering-related resources, p.e. displayLists.
virtual void purge();
/// this method is called in each frame and should be overriden if the
/// element wants to update it's internal state.
virtual void update();
virtual void setController(Controller * controller);
void checkDirtyDrawing() const;
};
}
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