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/*
ui/tooltip.h
This file is part of the Osirion project and is distributed under
the terms of the GNU General Public License version 2
*/
#ifndef __INCLUDED_UI_TOOLTIP_H__
#define __INCLUDED_UI_TOOLTIP_H__
#include "ui/label.h"
namespace ui
{
/**
* @brief a widget displaying a tooltip.
* This class makes sure only one Tooltip is globally visible.
*/
class Tooltip : public Label
{
public:
Tooltip(Widget *parent);
virtual ~Tooltip();
/**
* @brief resize the tooltip
* */
virtual void resize();
/**
* @brief show the tooltip
* */
virtual void show();
/**
* @brief hide the tooltip
* */
virtual void hide();
/**
* @brief draw event distributor
* The default draw event distributor is overwritten to do nothing.
* Tooltips are drawn separately because the need to be on top of everything else.
* @see event_draw_global
* */
virtual void event_draw();
/**
* @brief global draw event distributor
* This is called by the user interface to draw the tooltip after everything else.
* */
static void event_draw_global();
/**
* @brief the tooltip that is currently visible, nullptr if no tooltip is currently shown
*
* */
static inline Tooltip *global()
{
return tooltip_global;
}
protected:
/**
* @brief draw the tooltip
*/
virtual void draw();
/**
* @brief draw the tooltip background
*/
virtual void draw_background();
private:
static Tooltip *tooltip_global;
};
}
#endif // __INCLUDED_UI_TOOLTIP_H__
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