gmoccapy: add startup message

Author: hansu

src/emc/usr_intf/gmoccapy/dialogs.py

@@ -170,7 +170,7 @@ def yesno_dialog(self, caller, message, title = _("Operator Message")):
         dialog.destroy()
         return response == Gtk.ResponseType.YES
 
-    def show_user_message(self, caller, message, title = _("Operator Message")):
+    def show_user_message(self, caller, message, title = _("Operator Message"), checkbox = False):
         dialog = Gtk.MessageDialog(caller.widgets.window1,
                                    Gtk.DialogFlags.DESTROY_WITH_PARENT,
                                    Gtk.MessageType.INFO,
@@ -183,13 +183,22 @@ def show_user_message(self, caller, message, title = _("Operator Message")):
         ok_button.connect("clicked",lambda w:dialog.response(Gtk.ResponseType.OK))
         box = Gtk.HButtonBox()
         box.add(ok_button)
-        dialog.action_area.add(box)
+        
+        if checkbox:
+            cb = Gtk.CheckButton(label = _("Don't show this again"))
+            dialog.get_content_area().add(cb)
+        
+        dialog.get_action_area().add(box)
         dialog.set_border_width(5)
         dialog.show_all()
         self.emit("play_sound", "alert")
         response = dialog.run()
         dialog.destroy()
-        return response == Gtk.ResponseType.OK
+        
+        if checkbox and response == Gtk.ResponseType.OK:
+            return cb.get_active()
+        else:
+            return response == Gtk.ResponseType.OK
 
     # dialog for run from line
     def restart_dialog(self, caller):

src/emc/usr_intf/gmoccapy/gmoccapy.py

@@ -492,6 +492,8 @@ def __init__(self, argv):
         self.elapsed_time_run = 0
         self.progress = 0
 
+        self._startup_message()
+
         # This allows sourcing an user defined file
         rcfile = "~/.gmoccapyrc"
         user_command_file = self.get_ini_info.get_user_command_file()
@@ -528,7 +530,23 @@ def __init__(self, argv):
                 self.notification.add_message(_("Error in") + " " + css_file + "\n" \
                     + _("Please check the console output."), ALERT_ICON)
 
-
+    def _startup_message(self):
+        title = _("Important change(s)")
+        # This array holds information about new features or things that changed. They can be hidden using the dialog's checkbox.
+        # It is important that strings are only appended to this array (not removed), otherwise some messages could get hidden unwanted.
+        messages =[ _("<b>3.5.0 (LinuxCNC 2.10.0): Gmoccapy does no longer automatically retain G43 after a toolchange!</b>\n"\
+                    "Automatic reactivation of G43 is possible using a REMAP.\n"\
+                    "Examples can be found in the Gmoccapy sim configurations."),
+                    # _("<b>3.5.1 (LinuxCNC 2.10.1): </b> Example for new feature"),
+                    ]
+        hide_message = self.prefs.getpref("hide_startup_messsage", 0, int)
+        if hide_message < len(messages):
+            message = "\n\n".join(messages[hide_message:])
+            message += _('\n\nFor more information see the <a href="https://linuxcnc.org/docs/html/gui/gmoccapy_release_notes.txt">release notes</a>.')
+
+            dont_show = self.dialogs.show_user_message(self, message, title, checkbox = True)
+            if dont_show:
+                self.prefs.putpref("hide_startup_messsage", len(messages), str)
 
     def _get_ini_data(self):
         self.get_ini_info = getiniinfo.GetIniInfo()