X-Git-Url: https://git.cweiske.de/enigma2.git/blobdiff_plain/7eab308715ea1130166915574e3b691e08eb4482..55d519c26e9124873ca8be529066df184bd416f1:/lib/gui/ewidget.cpp

diff --git a/lib/gui/ewidget.cpp b/lib/gui/ewidget.cpp
index 6f7fa91b..7c50f4af 100644
--- a/lib/gui/ewidget.cpp
+++ b/lib/gui/ewidget.cpp
@@ -100,16 +100,25 @@ void eWidget::show()
 {
 	if (m_vis & wVisShow)
 		return;
-	
-	m_vis |=  wVisShow;
 
+	m_vis |= wVisShow;
+	
 		/* TODO: optimize here to only recalc what's required. possibly merge with hide. */
 	eWidget *root = this;
 	ePoint abspos = position();
 	while (root && !root->m_desktop)
 	{
 		root = root->m_parent;
-		assert(root);
+		if (!root)
+		{
+				/* oops: our root widget does not have a desktop associated. 
+					probably somebody already erased the root, but tries some
+					operations on a child window. 
+					
+					ignore them for now. */
+			/* assert(root); */
+			return;
+		}
 		abspos += root->position();
 	}
 
@@ -140,6 +149,8 @@ void eWidget::hide()
 	while (root && !root->m_desktop)
 	{
 		root = root->m_parent;
+		if (!root)
+			return;
 		abspos += root->position();
 	}
 	assert(root->m_desktop);
@@ -188,6 +199,21 @@ void eWidget::setTransparent(int transp)
 		m_vis &=~wVisTransparent;
 }
 
+ePoint eWidget::getAbsolutePosition()
+{
+	eWidget *root = this;
+	ePoint abspos = position();
+
+	while (root && !root->m_desktop)
+	{
+		root = root->m_parent;
+		assert(root);
+		abspos += root->position();
+	}
+
+	return abspos;
+}
+
 void eWidget::mayKillFocus()
 {
 	setFocus(0);