fix problem with clearing non-empty location field after changing type of config variable
introduced by cd9db17 ("clear variable location cell in variable
panel, if variable class or type changed").
Closes #26
<?xml version="1.0"?>
<!-- generated by wxGlade 0.6.8 on Thu Jun 18 15:19:02 2015 -->
<application path="" name="" class="" option="0" language="python" top_window="wxglade_hmi" encoding="UTF-8" use_gettext="1" 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>wxCAPTION|wxCLOSE_BOX|wxMINIMIZE_BOX|wxMAXIMIZE|wxMAXIMIZE_BOX|wxSYSTEM_MENU|wxRESIZE_BORDER|wxCLIP_CHILDREN</style>
<title>frame_1</title>
<object class="wxFlexGridSizer" name="grid_sizer_1" base="EditFlexGridSizer">
<hgap>0</hgap>
<growable_rows>0</growable_rows>
<rows>1</rows>
<growable_cols>0</growable_cols>
<cols>4</cols>
<vgap>0</vgap>
<object class="sizeritem">
<flag>wxALIGN_CENTER_HORIZONTAL|wxALIGN_CENTER_VERTICAL</flag>
<border>0</border>
<option>1</option>
<object class="ThreeDee" name="window_1" base="CustomWidget">
<extracode># WHERE IS THAT ?\nprint "hello"\n</extracode>
<arguments>
<argument>$parent</argument>
<argument>$id</argument>
</arguments>
<size>400,400</size>
</object>
</object>
<object class="sizeritem">
<flag>wxEXPAND</flag>
<border>0</border>
<option>1</option>
<object class="wxFlexGridSizer" name="sizer_1" base="EditFlexGridSizer">
<hgap>0</hgap>
<growable_rows>0</growable_rows>
<rows>2</rows>
<cols>1</cols>
<vgap>0</vgap>
<object class="sizeritem">
<flag>wxEXPAND</flag>
<border>0</border>
<option>1</option>
<object class="wxBoxSizer" name="sizer_2" base="EditBoxSizer">
<orient>wxVERTICAL</orient>
<object class="sizerslot" />
<object class="sizerslot" />
<object class="sizerslot" />
<object class="sizerslot" />
</object>
</object>
<object class="sizeritem">
<flag>wxEXPAND</flag>
<border>0</border>
<option>1</option>
<object class="wxGridSizer" name="sizer_3" base="EditGridSizer">
<hgap>0</hgap>
<rows>4</rows>
<cols>2</cols>
<vgap>0</vgap>
<object class="sizerslot" />
<object class="sizerslot" />
<object class="sizerslot" />
<object class="sizerslot" />
<object class="sizerslot" />
<object class="sizerslot" />
<object class="sizerslot" />
<object class="sizerslot" />
</object>
</object>
</object>
</object>
<object class="sizeritem">
<border>0</border>
<option>0</option>
<object class="wxToggleButton" name="DrawTestBt" base="EditToggleButton">
<label>Please Draw !</label>
<events>
<handler event="EVT_TOGGLEBUTTON">SetPLCGlobalVar</handler>
</events>
<extraproperties>
<property name="Name">"DrawTest"</property>
</extraproperties>
</object>
</object>
<object class="sizeritem">
<border>0</border>
<option>0</option>
<object class="wxToggleButton" name="DrawTestBt_copy" base="EditToggleButton">
<label>Please Draw copy !</label>
<events>
<handler event="EVT_TOGGLEBUTTON">SetPLCGlobalVar</handler>
</events>
<extraproperties>
<property name="Name">"DrawEscher"</property>
</extraproperties>
</object>
</object>
</object>
</object>
</application>