qtdragon -add ok/cancel HAL pins for dialogs

user wished to use a external operator panel to aknowledge dialogs

share/qtvcp/screens/qtdragon/qtdragon_handler.py

@@ -81,6 +81,7 @@ def __init__(self, halcomp, widgets, paths):
 
         # some global variables
         self.factor = 1.0
+        self._dialog_message = None
         self._spindle_wait = False
         self.probe = None
         self.default_setup = os.path.join(PATH.CONFIGPATH, "default_setup.html")
@@ -113,6 +114,7 @@ def __init__(self, halcomp, widgets, paths):
         self.statusbar_reset_time = 10000 # ten seconds
 
         STATUS.connect('general', self.dialog_return)
+        STATUS.connect('dialog-request', self.dialog_request)
         STATUS.connect('state-on', lambda w: self.enable_onoff(True))
         STATUS.connect('state-off', lambda w: self.enable_onoff(False))
         STATUS.connect('mode-manual', lambda w: self.enable_auto(True))
@@ -351,6 +353,13 @@ def init_pins(self):
         # total external offset
         pin = QHAL.newpin("eoffset-value", QHAL.HAL_FLOAT, QHAL.HAL_IN)
 
+        pin = QHAL.newpin("dialog-ok", QHAL.HAL_BIT, QHAL.HAL_IN)
+        pin.pinValueChanged.connect(lambda p,v: self.dialog_ext_control(p,v,1))
+        pin = QHAL.newpin("dialog-no", QHAL.HAL_BIT, QHAL.HAL_IN)
+        pin.pinValueChanged.connect(lambda p,v: self.dialog_ext_control(p,v,2))
+        pin = QHAL.newpin("dialog-cancel", QHAL.HAL_BIT, QHAL.HAL_IN)
+        pin.pinValueChanged.connect(lambda p,v: self.dialog_ext_control(p,v,0))
+
     def init_preferences(self):
         if not self.w.PREFS_:
             txt = _translate("HandlerClass","No preference file found, enable preferences in screenoptions widget")
@@ -626,6 +635,11 @@ def dialog_return(self, w, message):
             self.h['spindle-inhibit'] = False
             self.add_status(_translate("HandlerClass",'Spindle lowered after machine stopped'))
 
+        self._dialog_message = None
+
+    def dialog_request(self,w, message):
+        self._dialog_message = message
+
     def user_system_changed(self, data):
         sys = self.system_list[int(data) - 1]
         self.w.offset_table.selectRow(int(data) + 3)
@@ -1766,6 +1780,12 @@ def initiate_axis_dro(self, num, axis):
         except Exception as e:
             self.w['minus_jogbutton_{}'.format(num)].setProperty('text','{}-'.format(axis))
 
+    def dialog_ext_control(self, pin, value, answer):
+        if value:
+            if not self._dialog_message is None:
+                name = self._dialog_message.get('NAME')
+                STATUS.emit('dialog-update',{'NAME':name,'response':answer})
+
     #####################
     # KEY BINDING CALLS #
     #####################