From 3a6dd294de7a41988aca7d396a9dae5e2042bc26 Mon Sep 17 00:00:00 2001
From: Joel Bodenmann <joel@unormal.org>
Date: Sat, 4 Jan 2014 21:10:10 +0100
Subject: gwinDestroy(), gwinGetFirstChild() and gwinGetNextChild()

---
 include/gwin/gwin.h | 22 ++++++++++++++++++++++
 src/gwin/gwin.c     | 25 +++++++++++++++++++++----
 2 files changed, 43 insertions(+), 4 deletions(-)

diff --git a/include/gwin/gwin.h b/include/gwin/gwin.h
index e5eb2e0b..194173e0 100644
--- a/include/gwin/gwin.h
+++ b/include/gwin/gwin.h
@@ -396,6 +396,28 @@ extern "C" {
 		 * @api
 		 */
 		void gwinAddChild(GHandle parent, GHandle child, bool_t last);
+
+		/**
+		 * @brief	Get first child of a widget
+		 *
+		 * @return	The first child or NULL if the widget has no children
+		 *
+		 * @param[in] gh		The parent widget
+		 *
+		 * @api
+		 */
+		GHandle gwinGetFirstChild(GHandle gh);
+
+		/**
+		 * @brief	Get the next child of a widget
+		 *
+		 * @return	The next child or NULL if no more childs
+		 *
+		 * @param[in] gh		The parent widget
+		 *
+		 * @api
+		 */
+		GHandle gwinGetNextChild(GHandle gh);
 	#endif
 
 	#if GWIN_NEED_WINDOWMANAGER || defined (__DOXYGEN__)
diff --git a/src/gwin/gwin.c b/src/gwin/gwin.c
index 5d3da7cb..f226294d 100644
--- a/src/gwin/gwin.c
+++ b/src/gwin/gwin.c
@@ -180,6 +180,15 @@ GHandle gwinGWindowCreate(GDisplay *g, GWindowObject *pgw, const GWindowInit *pI
 }
 
 void gwinDestroy(GHandle gh) {
+	#if GWIN_NEED_HIERARCHY
+		// kill your children as long as you have any
+		while (gh->child) {
+			GHandle tmp = gh->child;
+			gh->child = gh->child->sibling;
+			gwinDestroy(tmp);
+		}
+	#endif
+	
 	// Make the window invisible
 	gwinSetVisible(gh, FALSE);
 
@@ -285,12 +294,12 @@ void gwinRedraw(GHandle gh) {
 		child->sibling = NULL;
 		child->child   = NULL;
 
-		if(!parent)
+		if (!parent)
 			return;
 
-		if(last && parent->child) {
+		if (last && parent->child) {
 			GHandle s = parent->child;
-			while(s->sibling)
+			while (s->sibling)
 				s = s->sibling;
 			s->sibling = child;
 		} else {
@@ -298,12 +307,20 @@ void gwinRedraw(GHandle gh) {
 			parent->child  = child;
 		}
 	}
+
+	GHandle gwinGetFirstChild(GHandle gh) {
+		return gh->child;
+	}
+
+	GHandle gwinGetNextChild(GHandle gh) {
+		return gh->sibling;
+	}
 #endif
 
 void gwinClear(GHandle gh) {
 	/*
 	 * Don't render anything when the window is not visible but 
-	 * still call the AfterClear() routine as some widgets will
+	 * still call return gh->child->sibling;the AfterClear() routine as some widgets will
 	 * need this to clear internal buffers or similar
 	 */
 	if (!((gh->flags & GWIN_FLG_VISIBLE))) {
-- 
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