From c1ce0ecd3458e1939b4e6c9947684378078a724f Mon Sep 17 00:00:00 2001
From: Stijn Buys <ingar@telenet.be>
Date: Sat, 18 Jul 2020 17:39:47 +0200
Subject: Always draw tooltips on top of the widget stack.

---
 src/ui/label.h    |  2 +-
 src/ui/tooltip.cc | 20 ++++++++++++++++++++
 src/ui/tooltip.h  | 22 ++++++++++++++++++----
 src/ui/ui.cc      |  3 +++
 src/ui/widget.h   |  2 +-
 5 files changed, 43 insertions(+), 6 deletions(-)

diff --git a/src/ui/label.h b/src/ui/label.h
index a895691..f187744 100644
--- a/src/ui/label.h
+++ b/src/ui/label.h
@@ -19,7 +19,7 @@ class Label : public Widget
 {
 public:
 	Label(Widget *parent, const char *text = 0);
-	~Label();
+	virtual ~Label();
 
 	/// set the text displayed by the label
 	void set_text(const std::string &text);
diff --git a/src/ui/tooltip.cc b/src/ui/tooltip.cc
index b1e8c3c..6a692ff 100644
--- a/src/ui/tooltip.cc
+++ b/src/ui/tooltip.cc
@@ -67,5 +67,25 @@ void Tooltip::hide()
 	Label::hide();
 }
 
+void Tooltip::event_draw()
+{
+}
+
+void Tooltip::event_draw_global()
+{
+	if (tooltip_global && tooltip_global->visible())
+	{
+		if (tooltip_global->background())
+			tooltip_global->draw_background();
+		
+		if (tooltip_global->border())
+			tooltip_global->draw_border();
+		
+		tooltip_global->draw();
+		
+		if (debug())
+			tooltip_global->draw_debug();
+	}
+}
 
 }
diff --git a/src/ui/tooltip.h b/src/ui/tooltip.h
index 0cfa12d..629863a 100644
--- a/src/ui/tooltip.h
+++ b/src/ui/tooltip.h
@@ -23,23 +23,37 @@ class Tooltip : public Label
 		
 		/**
 		 * @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;
diff --git a/src/ui/ui.cc b/src/ui/ui.cc
index fc52bbf..7fb25dd 100644
--- a/src/ui/ui.cc
+++ b/src/ui/ui.cc
@@ -298,6 +298,9 @@ void UI::frame()
 	
 	// draw the widget stack
 	event_draw();
+	
+	// draw tooltip
+	Tooltip::event_draw_global();
 
 	// draw the mouse pointer
 	if (visible())
diff --git a/src/ui/widget.h b/src/ui/widget.h
index e1f199d..c3d952c 100644
--- a/src/ui/widget.h
+++ b/src/ui/widget.h
@@ -275,7 +275,7 @@ public:
 	 * @brief calls the draw event handler and sends the event to all child widgets
 	 * @see draw
 	 **/
-	void event_draw();
+	virtual void event_draw();
 
 	/**
 	 * @brief calls the key event handlers and sends unhandled keys to the parent widget
-- 
cgit v1.2.3