[yavgui] Set ZValue upon (de)selection.

* yavgui/src/g_state.cc,
* yavgui/src/g_transition.cc: Do that.

ChangeLog

+2009-08-09  d-halluin  <d-halluin@lrde.epita.fr>
+
+	[yavgui] Set ZValue upon (de)selection.
+
+	* yavgui/src/g_state.cc,
+	* yavgui/src/g_transition.cc: Do that.
+
 2009-08-09  d-halluin  <d-halluin@lrde.epita.fr>
 	[yavgui] Ask for alphabet during automaton creation.

yavgui/src/g_state.cc

@@ -235,7 +235,6 @@ namespace gui
       }
       if (event->button () == Qt::RightButton)
       {
-	setZValue(1);
 	drawing_transition_ = true;
 	mouse_pos_ = event->pos();
 	update_bounding_rect_();
@@ -251,7 +250,6 @@ namespace gui
       if (drawing_transition_)
       {
 	drawing_transition_ = false;
-	setZValue(0);
 	GState* s = dynamic_cast<GState*>(scene()->itemAt(event->scenePos()));
 	if (s && s != this)
 	{
@@ -321,7 +319,7 @@ namespace gui
       if (selected_)
 	return;
       color_ = highlight_color_;
-
+      setZValue(1);
       selected_ = true;
       update ();
       emit selected ();
@@ -333,7 +331,7 @@ namespace gui
       if (!selected_)
 	return;
       color_ = default_color_;
-
+      setZValue(0);
       selected_ = false;
       update ();
       emit deselected ();

yavgui/src/g_transition.cc

@@ -404,8 +404,10 @@ namespace gui
     void
     GTransition::select ()
     {
+      if (selected_)
+	return;
       color_ = highlight_color_;
-
+      setZValue(1);
       selected_ = true;
       update ();
       emit selected ();
@@ -414,8 +416,10 @@ namespace gui
     void
     GTransition::deselect ()
     {
+      if (!selected_)
+	return;
       color_ = default_color_;
-
+      setZValue(0);
       selected_ = false;
       update ();
       emit deselected ();