gui: added processbar code and played with threading

lib/gui/gui.py

@@ -15,6 +15,8 @@ from lib.disk import Disk
 
 from lib.gr.file_sink import FileSink
 
+from lib.gui.update_progress_bar import UpdateProgressBar
+
 class SuGui(QtWidgets.QMainWindow):
     """
     GUI class used to realise the main window.
@@ -87,9 +89,24 @@ class SuGui(QtWidgets.QMainWindow):
             self.button_stop.setEnabled(True)
             self.button_start.setEnabled(False)
 
-            file_sink.capture()
+            # Thread stuff
+            self.request = UpdateProgressBar(options['capture_time'])
+            print(self.__class__)
+            self.connect(self.request, QtCore.SIGNAL("mysignal(QString)"), self.update_progress_bar, QtCore.Qt.QueuedConnection)
+            self.request.start()
+
+            #file_sink.capture()
 
+    def update_progress_bar(self, text):
+        """
+        Add the text that's given to this function to the
+        list_submissions QListWidget we have in our GUI and
+        increase the current value of progress bar by 1
 
+        :param text: text to add to the process bar
+        :type text: str
+        """
+        self.progress_bar.setValue(text)
 
     def stop_button(self):
         """

lib/gui/update_progress_bar.py

+# -*- coding: utf-8 -*-
+import time
+
+from PyQt5.QtCore import QThread, pyqtSignal
+
+class UpdateProgressBar(QThread):
+    update_pb = pyqtSignal('QString', name='updateProgressBar')
+
+    def __init__(self, measure_time):
+        """
+        Make a new thread instance.
+
+        :param measure_time: Time to measure spectrum
+        :type measure_time: int
+        """
+        QThread.__init__(self)
+        self.measure_time = measure_time
+        self.start_time = float(time.time())
+
+    def __del__(self):
+        self.wait()
+
+    def run(self):
+        while self.sleep(2):
+            #self.update_pb.emit(SIGNAL('update_progress_bar(QString)'), \ time_to_percent)
+            self.emit(QtCore.SIGNAL("mysignal(QString)"), time_to_percent)
+
+    def time_to_percent(self):
+        running_time = float(time.time()) - self.start_time
+        percent = (running_time/self.measure_time)*100
+
+        return int(percent)