GPIO exit added

photobooth/Photobooth.py

@@ -49,7 +49,7 @@ class Photobooth:
             self._lampOff = lambda : self._gpio.lampOff(lamp)
 
             self._gpio.setButton(config.getInt('Gpio', 'trigger_pin'), self.gpioTrigger)
-            self._gpio.setButton(config.getInt('Gpio', 'exit_pin'), self.teardown)
+            self._gpio.setButton(config.getInt('Gpio', 'exit_pin'), self.gpioExit)
         else:
             self._lampOn = lambda : None
             self._lampOff = lambda : None
@@ -119,6 +119,9 @@ class Photobooth:
                     print('Camera already started')
                     self.initRun()
                     continue
+                elif str(event) == 'teardown':
+                    self.teardown()
+                    return -1
                 elif str(event) != 'triggered':
                     print('Unknown event received: ' + str(event))
                     raise RuntimeError('Unknown event received', str(event))
@@ -270,6 +273,11 @@ class Photobooth:
         self._gpioTrigger()
 
 
+    def gpioExit(self):
+
+        self._send.send(gui.TeardownState())
+
+
     def triggerOff(self):
 
         self._lampOff()

photobooth/gui/PyQt5Gui.py

@@ -80,8 +80,10 @@ class PyQt5Gui(Gui):
 
         if isinstance(state, IdleState):
             self.showIdle()
+            
         elif isinstance(state, TriggerState):
             self._transport.send('triggered')
+
         elif isinstance(state, GreeterState):
             global cfg
             self._p.handleKeypressEvent = self.handleKeypressEventNoTrigger
@@ -101,16 +103,24 @@ class PyQt5Gui(Gui):
             
         elif isinstance(state, PoseState):
             self._p.setCentralWidget(PyQt5PictureMessage('Pose!'))
+
         elif isinstance(state, AssembleState):
             self._p.setCentralWidget(PyQt5WaitMessage('Processing picture...'))
+
         elif isinstance(state, PictureState):
             img = ImageQt.ImageQt(state.picture)
             self._p.setCentralWidget(PyQt5PictureMessage('', img))
             QTimer.singleShot(cfg.getInt('Photobooth', 'display_time') * 1000, lambda : self._transport.send('ack'))
 
             self._printer.print(state.picture)
+
+        elif isinstance(state, TeardownState):
+            self._transport.send('teardown')
+            self.showStart()
+
         elif isinstance(state, ErrorState):
             self.showError(state.title, state.message)
+
         else:
             raise ValueError('Unknown state')
 

photobooth/gui/__init__.py

@@ -155,3 +155,9 @@ class PreviewState(MessageState, PictureState):
     def __init__(self, **kwargs):
 
         super().__init__(**kwargs)
+
+class TeardownState(GuiState):
+
+    def __init__(self, **kwargs):
+
+        super().__init__(**kwargs)