Support hiding by name using underscore (#437)

docs/Quicktips.md

@@ -0,0 +1,31 @@
+# Quicktips
+quick tips, without much explanation
+
+### Hide macros, outputs or fans
+
+As you probably already noticed, you can show and hide the gcode macros in the interface settings, but there is more…
+
+Did you know, that you can also hide gcode macros by prefixing the name with an underscore?
+
+```
+[gcode_macro MY_AWESOME_GCODE]
+gcode:
+    _MY_HELPER_CODE
+[gcode_macro _MY_HELPER_CODE]
+gcode:
+    M300
+```
+
+MY_AWESOME_GCODE appears in your interface settings, _MY_HELPER_CODE not.
+
+Another example:
+
+Lets hide a temperature_fan:
+
+```
+[temperature_fan fan1]
+[temperature_fan _fan2]
+```
+
+fan1 will show in the interface, but _fan2 will be hidden.
+

panels/fan.py

@@ -139,6 +139,10 @@ class FanPanel(ScreenPanel):
     def load_fans(self):
         fans = self._printer.get_fans()
         for fan in fans:
+            # Support for hiding devices by name
+            name = " ".join(fan.split(" ")[1:]) if not (fan == "fan") else fan
+            if name.startswith("_"):
+                continue
             self.add_fan(fan)
 
     def set_fan_speed(self, widget, fan):

panels/gcode_macros.py

@@ -37,7 +37,9 @@ class MacroPanel(ScreenPanel):
         self.load_gcode_macros()
 
     def add_gcode_macro(self, macro):
-
+        # Support for hiding macros by name
+        if macro.startswith("_"):
+            return
         frame = Gtk.Frame()
         frame.set_property("shadow-type", Gtk.ShadowType.NONE)
         frame.get_style_context().add_class("frame-item")

panels/settings.py

@@ -44,6 +44,9 @@ class SettingsPanel(ScreenPanel):
 
         for macro in self._printer.get_config_section_list("gcode_macro "):
             macro = macro[12:]
+            # Support for hiding macros by name
+            if macro.startswith("_"):
+                continue
             self.macros[macro] = {
                 "name": macro,
                 "section": "displayed_macros %s" % self._screen.connected_printer,

panels/temperature.py

@@ -235,6 +235,9 @@ class TemperaturePanel(ScreenPanel):
 
         if not (device.startswith("extruder") or device.startswith("heater_bed")):
             devname = " ".join(device.split(" ")[1:])
+            # Support for hiding devices by name
+            if devname.startswith("_"):
+                return
         else:
             devname = device