M117 messages display (#150)

* Added displaying M117 messages under printer state label on JobStatus panel

ks_includes/printer.py

@@ -76,6 +76,7 @@ class Printer:
     def process_update(self, data):
         keys = [
             'bed_mesh',
+            'display_status',
             'fan',
             'gcode_move',
             'idle_timeout',

panels/job_status.py

@@ -50,9 +50,14 @@ class JobStatusPanel(ScreenPanel):
         self.labels['status'].set_halign(Gtk.Align.START)
         self.labels['status'].set_vexpand(False)
         self.labels['status'].get_style_context().add_class("printing-status")
+        self.labels['lcdmessage'] = Gtk.Label("")
+        self.labels['lcdmessage'].set_halign(Gtk.Align.START)
+        self.labels['lcdmessage'].set_vexpand(False)
+        self.labels['lcdmessage'].get_style_context().add_class("printing-status")
 
         fi_box.add(self.labels['file']) #, True, True, 0)
         fi_box.add(self.labels['status']) #, True, True, 0)
+        fi_box.add(self.labels['lcdmessage']) #, True, True, 0)
         fi_box.set_valign(Gtk.Align.CENTER)
 
         info = Gtk.Box(orientation=Gtk.Orientation.VERTICAL)
@@ -376,6 +381,8 @@ class JobStatusPanel(ScreenPanel):
 
         ps = self._printer.get_stat("print_stats")
         vsd = self._printer.get_stat("virtual_sdcard")
+        if 'display_status' in data and 'message' in data['display_status']:
+                self.update_message()
 
         if "print_stats" in data and "filename" in data['print_stats']:
             if data['print_stats']['filename'] != self.filename and self.state not in  ["cancelling","cancelled","complete"]:
@@ -589,6 +596,10 @@ class JobStatusPanel(ScreenPanel):
     def update_progress (self):
         self.labels['progress_text'].set_text("%s%%" % (str( min(int(self.progress*100),100) )))
 
+    def update_message (self):
+        msg = self._printer.get_stat("display_status", "message")
+        self.labels['lcdmessage'].set_text("" if msg == None else msg)
+
     #def update_temp(self, dev, temp, target):
     #    if dev in self.labels:
     #        self.labels[dev].set_label(self._gtk.formatTemperatureString(temp, target))

screen.py

@@ -41,6 +41,7 @@ PRINTER_BASE_STATUS_OBJECTS = [
     'bed_mesh',
     'idle_timeout',
     'configfile',
+    'display_status',
     'gcode_move',
     'fan',
     'toolhead',
@@ -227,6 +228,7 @@ class KlipperScreen(Gtk.Window):
             "objects": {
                 "bed_mesh": ["profile_name","mesh_max","mesh_min","probed_matrix"],
                 "configfile": ["config"],
+                "display_status": ["progress","message"],
                 "fan": ["speed"],
                 "gcode_move": ["extrude_factor","gcode_position","homing_origin","speed_factor"],
                 "idle_timeout": ["state"],