1 files changed, 80 insertions, 0 deletions
diff --git a/src/ui/tooltip.h b/src/ui/tooltip.h
new file mode 100644
index 0000000..629863a
--- /dev/null
+++ b/src/ui/tooltip.h
@@ -0,0 +1,80 @@
+/*
+   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__