fix bug with TextViewer instance in debug mode, appears after transferring new program on PLC
TextViewer isn't able to display debug values, so calling for this class SubscribeAllDataConsumers method causes error
<?xml version="1.0"?>
<!-- generated by wxGlade 0.6.4 on Thu May 16 13:24:16 2013 -->
<application path="" name="" class="" option="0" language="python" top_window="wxglade_hmi" encoding="UTF-8" use_gettext="0" overwrite="0" use_new_namespace="1" for_version="2.8" is_template="0" indent_amount="4" indent_symbol="space" source_extension=".cpp" header_extension=".h">
<object class="Class_wxglade_hmi" name="wxglade_hmi" base="EditFrame">
<style>wxDEFAULT_FRAME_STYLE</style>
<title>frame_1</title>
<object class="wxStaticBoxSizer" name="sizer_1" base="EditStaticBoxSizer">
<orient>wxVERTICAL</orient>
<label>Wiimote Test</label>
<object class="sizeritem">
<flag>wxEXPAND</flag>
<border>0</border>
<option>0</option>
<object class="wxButton" name="button_1" base="EditButton">
<label>Connect Wiimote</label>
<events>
<handler event="EVT_BUTTON">OnConnectButton</handler>
</events>
</object>
</object>
<object class="sizeritem">
<flag>wxEXPAND</flag>
<border>0</border>
<option>0</option>
<object class="wxButton" name="button_2" base="EditButton">
<label>Disconnect Wiimote</label>
<events>
<handler event="EVT_BUTTON">OnDisconnectButton</handler>
</events>
</object>
</object>
<object class="sizeritem">
<flag>wxEXPAND</flag>
<border>0</border>
<option>0</option>
<object class="wxStaticText" name="label_1" base="EditStaticText">
<attribute>1</attribute>
<label>Status :</label>
</object>
</object>
<object class="sizeritem">
<flag>wxEXPAND</flag>
<border>0</border>
<option>0</option>
<object class="wxStaticText" name="label_2" base="EditStaticText">
<attribute>1</attribute>
<label>no status</label>
</object>
</object>
</object>
</object>
</application>