Add scheduler GUI

b_asic/scheduler-gui/main_window.py

@@ -2,6 +2,8 @@
 """B-ASIC Scheduler-gui Module.
 
 Contains the scheduler-gui class for scheduling operations in an SFG.
+
+Start main-window with start_gui().
 """
 
 
@@ -16,11 +18,11 @@ import qtpy
 from qtpy           import uic, QtCore, QtGui, QtWidgets
 from qtpy.QtCore    import Qt, Slot, QSettings
 from qtpy.QtGui     import QCloseEvent
-from qtpy.QtWidgets import QApplication, QMainWindow, QMessageBox
+from qtpy.QtWidgets import QApplication, QMainWindow, QMessageBox, QAbstractButton
 
 # QGraphics and QPainter imports
 from qtpy.QtWidgets import (
-    QGraphicsView, QGraphicsScene,
+    QGraphicsView, QGraphicsScene, QGraphicsWidget,
     QGraphicsLayout, QGraphicsLinearLayout, QGraphicsGridLayout, QGraphicsLayoutItem, QGraphicsAnchorLayout,
     QGraphicsItem, QGraphicsItemGroup, QGraphicsItemAnimation
     )
@@ -173,20 +175,30 @@ class MainWindow(QMainWindow, Ui_MainWindow):
             self.menu_node_info.setChecked(True)
     
 
+
     ################
     #### Events ####
     ################
     def _close_event(self, event: QCloseEvent) -> None:
         """Replace QMainWindow default closeEvent(QCloseEvent) event"""
-        ret = QMessageBox.question(self, self.tr("Application"),
-                                  self.tr("Do you want to exit?"))
+
+        box = QMessageBox(self)
+        box.setWindowTitle(self.tr('Confirm Exit'))
+        box.setText('<h3>' + self.tr('Confirm Exit') + '</h3><p><br>' +
+                    self.tr('Are you sure you want to exit?') +
+                    '&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<br></p>')
+        box.setIcon(QMessageBox.Question)
+        box.setStandardButtons(QMessageBox.Yes | QMessageBox.No)
+        box.setButtonText(QMessageBox.Yes, self.tr("&Exit"))
+        box.setButtonText(QMessageBox.No, self.tr("&Cancel"))
+        
+        ret = box.exec_()
         if ret == QMessageBox.StandardButton.Yes:
             event.accept()
         else:
             event.ignore()
 
 
-
     #################################
     #### Helper member functions ####
     #################################
@@ -204,7 +216,6 @@ class MainWindow(QMainWindow, Ui_MainWindow):
         self.statusbar.showMessage(msg)
 
 
-
 def start_gui():
     app = QApplication(sys.argv)
     window = MainWindow()