gmoccapy: add button "refresh dir"

Author: hansu

src/emc/usr_intf/gmoccapy/gmoccapy.glade

@@ -509,6 +509,11 @@ uncomment selection</property>
     <property name="visible">True</property>
     <property name="can-focus">False</property>
   </object>
+  <object class="GtkImage" id="img_refresh_dir">
+    <property name="visible">True</property>
+    <property name="can-focus">False</property>
+    <property name="icon-name">view-refresh</property>
+  </object>
   <object class="GtkImage" id="img_run">
     <property name="visible">True</property>
     <property name="can-focus">False</property>
@@ -7833,15 +7838,21 @@ tool z</property>
                   </packing>
                 </child>
                 <child>
-                  <object class="GtkLabel" id="lbl_space_10">
+                  <object class="GtkButton" id="btn_reload_dir">
                     <property name="width-request">90</property>
                     <property name="height-request">56</property>
                     <property name="visible">True</property>
-                    <property name="can-focus">False</property>
+                    <property name="can-focus">True</property>
+                    <property name="receives-default">True</property>
+                    <property name="tooltip-text" translatable="yes">Refresh directory</property>
+                    <property name="halign">center</property>
+                    <property name="valign">center</property>
+                    <property name="image">img_refresh_dir</property>
+                    <signal name="clicked" handler="on_btn_refresh_dir_clicked" swapped="no"/>
                   </object>
                   <packing>
-                    <property name="expand">False</property>
-                    <property name="fill">False</property>
+                    <property name="expand">True</property>
+                    <property name="fill">True</property>
                     <property name="position">3</property>
                   </packing>
                 </child>

src/emc/usr_intf/gmoccapy/gmoccapy.py

@@ -5000,10 +5000,11 @@ def _set_icon_theme(self, name):
                 ("img_skip_optional_inactive",  "skip_optional_inactive",   32),
                 # load file buttons
                 ("img_home",            "home_folder",          32),
+                ("img_jump_to",         "user_defined_folder",  32),
                 ("img_dir_up",          "chevron_up",           32),
+                ("img_refresh_dir",      "refresh",              32),
                 ("img_sel_prev",        "chevron_left",         32),
                 ("img_sel_next",        "chevron_right",        32),
-                ("img_jump_to",         "user_defined_folder",  32),
                 ("img_select",          "select_file",          32),
                 ("img_back_file_load",  "back_to_app",          48),
                 # edit file menu
@@ -5655,6 +5656,9 @@ def on_btn_home_clicked(self, widget, data=None):
 
     def on_btn_jump_to_clicked(self, widget, data=None):
         self.widgets.IconFileSelection1.btn_jump_to.emit("clicked")
+        
+    def on_btn_refresh_dir_clicked(self, widget, data=None):
+        self.widgets.IconFileSelection1.refresh_filelist()
 
     def on_btn_dir_up_clicked(self, widget, data=None):
         self.widgets.IconFileSelection1.btn_dir_up.emit("clicked")