[clutter-gtkmm] examples: do not use deprecated symbols

[Juan R. Garcia Blanco <juanrgar src gnome org>]

commit 84b2330cbd4824011382d1e89db9e4f1b298b8b3
Author: Juan R. García Blanco <juanrgar gmail com>
Date:   Sun Oct 12 14:51:30 2014 +0200

    examples: do not use deprecated symbols
    
        * examples/events/event.cc: Replace CLUTTER_STAGE_WIDTH/HEIGHT
        deprecated macros with Clutter::Actor::get_width/height methods.

 examples/events/event.cc |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/examples/events/event.cc b/examples/events/event.cc
index 8ccc4df..2aa2fde 100644
--- a/examples/events/event.cc
+++ b/examples/events/event.cc
@@ -47,7 +47,7 @@ Event::Event()
   gfloat width = 0;
   gfloat height = 0;
   m_hand->get_size(width, height);
-  m_hand->set_position((CLUTTER_STAGE_WIDTH()/2) - (width/2), (CLUTTER_STAGE_HEIGHT()/2) - (height/2));
+  m_hand->set_position((m_stage->get_width()/2) - (width/2), (m_stage->get_height()/2) - (height/2));
   m_hand->set_reactive();
   m_hand->signal_button_press_event().connect(sigc::mem_fun(*this, &Event::on_hand_button_press));