#pragma once
#include <string>
#include "gui_widget.h"

namespace Gui {
  class Button: public Widget {
  public:
    Button(void);
    virtual ~Button(void) {}
    virtual bool OnMouseDown(MouseButtonEvent* e);
    virtual bool OnMouseUp(MouseButtonEvent* e);
    virtual void OnActivate(void);

    /* 
     * onClick only happens when press and release are both on widget,
     * (release can be elsewhere).
     */
    sigc::signal<void> onPress;
    sigc::signal<void> onRelease;
    sigc::signal<void> onClick;
    bool IsPressed(void) { return m_isPressed; }
  private:
    void OnRawMouseUp(SDL_MouseButtonEvent* e);
    void OnRawKeyUp(SDL_KeyboardEvent* e);

    bool m_isPressed;
    sigc::connection _m_release;
    sigc::connection _m_kbrelease;
  };

  class SolidButton: public Button {
  public:
    SolidButton(void) : Button()  {}
    virtual ~SolidButton(void)    {}
    virtual void GetSizeRequested(float size[2]);
    virtual void Draw(void);
  };

  class TransparentButton : public Button {
  public:
    TransparentButton(void) : Button()  {}
    virtual ~TransparentButton(void)    {}
    virtual void GetSizeRequested(float size[2]);
    virtual void Draw(void);
  };
}