show a "warning" icon whenever a new warning or error was issued

the icon is hidden again after any kind of activity in the log window


git-svn-id: https://pycam.svn.sourceforge.net/svnroot/pycam/trunk@994 bbaffbd6-741e-11dd-a85d-61de82d9cad9

share/ui/pycam-project.ui

@@ -4424,12 +4424,28 @@ Usually you will want to use the cutter radius here to cut around the outline.</
         <child>
           <object class="GtkEventBox" id="StatusBarEventBox">
             <property name="visible">True</property>
+            <child>
+              <object class="GtkHBox" id="hbox37">
+                <property name="visible">True</property>
+                <child>
+                  <object class="GtkImage" id="StatusBarWarning">
+                    <property name="stock">gtk-dialog-warning</property>
+                  </object>
+                  <packing>
+                    <property name="expand">False</property>
+                    <property name="position">0</property>
+                  </packing>
+                </child>
                 <child>
                   <object class="GtkStatusbar" id="StatusBar">
                     <property name="visible">True</property>
-                <property name="tooltip_text" translatable="yes">Click to open the log window.</property>
                     <property name="spacing">2</property>
                   </object>
+                  <packing>
+                    <property name="position">1</property>
+                  </packing>
+                </child>
+              </object>
             </child>
           </object>
           <packing>

src/pycam/Gui/Project.py

@@ -2009,6 +2009,9 @@ class ProjectGui:
             except TypeError:
                 new_message = re.sub("[^\w\s]", "", message)
                 self.status_bar.push(0, new_message)
+            # highlight the "warning" icon for warnings/errors
+            if record and record.levelno > 20:
+                self.gui.get_object("StatusBarWarning").show()
 
     @gui_activity_guard
     def copy_log_to_clipboard(self, widget=None):
@@ -2021,10 +2024,12 @@ class ProjectGui:
         self.log_model.foreach(copy_row, content)
         clipboard = gtk.Clipboard()
         clipboard.set_text(os.linesep.join(content))
+        self.gui.get_object("StatusBarWarning").hide()
 
     @gui_activity_guard
     def clear_log_window(self, widget=None):
         self.log_model.clear()
+        self.gui.get_object("StatusBarWarning").hide()
 
     @gui_activity_guard
     def toggle_log_window(self, widget=None, value=None, action=None):
@@ -2048,6 +2053,7 @@ class ProjectGui:
             self._log_window_position = self.log_window.get_position()
             self.log_window.hide()
         toggle_log_checkbox.set_active(new_state)
+        self.gui.get_object("StatusBarWarning").hide()
         # don't destroy the window with a "destroy" event
         return True