Add scheduler GUI

b_asic/scheduler-gui/main_window.py

@@ -4,20 +4,19 @@ Contains the scheduler-gui class for scheduling operations in an SFG.
 """
 # This Python file uses the following encoding: utf-8
 
-import os
+import os, sys
 from pathlib import Path
-import sys
 from typing import Any
-from pytest import ExitCode
 #from matplotlib.pyplot import bar
 #from diagram import *
 
-from qtpy import uic, QtCore, QtGui, QtWidgets
-from qtpy.QtCore import Qt, Slot
+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
 
 # QPainter imports
-from qtpy.QtWidgets import QGraphicsView, QGraphicsScene
+from qtpy.QtWidgets import QGraphicsView, QGraphicsScene, QMessageBox
 from qtpy.QtGui import (
     QPaintEvent, QPainter, QPainterPath, QColor, QBrush, QPen, QFont, QPolygon,
     QLinearGradient)
@@ -72,7 +71,6 @@ if __debug__:
     argv = ' '.join(argv)
     print("DEBUG: Running in debug mode. To disable, start program with: '" + argv + "'")
 
-
 # Only availible when the form is compiled
 from ui.main_window_ui import Ui_MainWindow
 
@@ -82,20 +80,17 @@ from ui.main_window_ui import Ui_MainWindow
 class MainWindow(QMainWindow, Ui_MainWindow):
     """Schedule of an SFG with scheduled Operations."""
 
-    #_ui: QMainWindow                            # <class '__main__.Ui_MainWindow'>
-    #_widget: QMainWindow                        # <class 'PyQt5.QtWidgets.QMainWindow'>
-    #ui = Ui_MainWindow()                        # DEBUG, remove later
+    _settings: QSettings
+    
 
     def __init__(self):
-        """Construct a Schedule from an SFG and show it in the UI."""
+        """Initialize Schedule-gui."""
         super(MainWindow, self).__init__()
         self._init_ui()
         self._init_graphics_view()
 
-    def _init_ui(self):
-        
-       
 
+    def _init_ui(self) -> None:
         # self._ui = uic.loadUi("main_window.ui", None)    # Load the .ui file
         # #self._ui.setupUi(self)
         # print('self:\t\t' + str(type(self)))
@@ -115,55 +110,102 @@ class MainWindow(QMainWindow, Ui_MainWindow):
         # else:
         #     uic.loadUi("main_window.ui", self)    # Load the .ui file
         
+        self._settings = QSettings()
         self.setupUi(self)
 
+        # Init signals/slots
         self.pushbutton_add.clicked.connect(self.callback_pushButton)
-        self.menu_load_sfg.triggered.connect(self.load_sfg)
-        self.menu_save_schedule.triggered.connect(self.save_schedule)
+        self.menu_load_sfg.triggered.connect(self.open)
+        self.menu_save_schedule.triggered.connect(self.save)
         self.menu_quit.triggered.connect(self.close)
-        self.menu_node_info.triggered.connect(self.toggle_node_info)
-        #self.show()
-
-        #print('self:\t\t' + str(type(self)))
-
-    def _init_graphics_view(self):
-        self.setCentralWidget(self.graphicsView)
+        self.menu_node_info.triggered.connect(self._toggle_component_info)
+        self.splitter_center.splitterMoved.connect(self._splitter_center_moved)
+
+        # Init info sidebar
+        for i in range(10):
+            self.listWidget.addItem('this is a very very very very long string that says abolutly nothing' + str(i))
+            self.listWidget.addItem('this is a short string' + str(i))
+
+        # Init central-widget splitter
+        self.splitter_center.setStretchFactor(0, 1)
+        self.splitter_center.setStretchFactor(1, 0)
+        self.splitter_center.setCollapsible(0, False)
+        self.splitter_center.setCollapsible(1, True)
+
+    def _init_graphics_view(self) -> None:
+        pass
+        #self.setCentralWidget(self.graphicsView)
         # pass
-        # self.scene = QGraphicsScene(self)
-        # self.graphic_view = QGraphicsView(self.scene, self)
-        # self.graphic_view.setRenderHint(QPainter.Antialiasing)
-        # self.graphic_view.setGeometry(20, 20, self.width(), self.height())
-        # self.graphic_view.setDragMode(QGraphicsView.RubberBandDrag)
+        self.graphic_scene = QGraphicsScene(self)
+        self.graphic_view.setScene(self.graphic_scene)
+        #self.graphic_view = QGraphicsView(self.scene, self)
+        self.graphic_view.setRenderHint(QPainter.Antialiasing)
+        self.graphic_view.setGeometry(20, 20, self.width(), self.height())
+        self.graphic_view.setDragMode(QGraphicsView.RubberBandDrag)
         # print(self.centralwidget.baseSize())
         
         #self.setupUi(self)                  # Need to setup ui again
-    
 
+
+    ###############
+    #### Slots ####
+    ###############
     @Slot()
-    def callback_pushButton(self):
+    def callback_pushButton(self) -> None:
         #diagram = Diagram()
         self.printButtonPressed('callback_pushButton')
     
     @Slot()
-    def load_sfg(self):
+    def open(self) -> None:
+        """This method loads an SFG and create a base schedule in gui."""
+        #TODO: all
         self.printButtonPressed('load_sfg()')
         self.update_statusbar('SFG loaded successfully')
     
     @Slot()
-    def save_schedule(self):
+    def save(self) -> None:
+        """This method save an schedule."""
+        #TODO: all
         self.printButtonPressed('save_schedule()')
         self.update_statusbar('Schedule saved successfully')
     
     @Slot(bool)
-    def toggle_node_info(self, checked: bool):
-        #if _ui.actionNode_info.
-        print(type(checked))
-        print(checked)
-        self.printButtonPressed('toggle_node_info()')
-        #self.update_statusbar()
+    def _toggle_component_info(self, checked: bool) -> None:
+        widths = list(self.splitter_center.sizes())
+        max_range = widths[0] + widths[1]
+        if checked:
+            self.splitter_center.restoreState(self._settings.value("splitterSizes"));
+        else:
+            self._settings.setValue("splitterSizes", self.splitter_center.saveState());
+            self.splitter_center.moveSplitter(max_range, 1)     # Note: splitter index starts at 1
+
+    @Slot(int, int)
+    def _splitter_center_moved(self, pos: int, index: int) -> None:
+        widths: list[int, int] = list(self.splitter_center.sizes())
+        #TODO: Custom move handler, save state on click-release?
+        if widths[1] == 0:
+            self.menu_node_info.setChecked(False)
+        else:
+            self.menu_node_info.setChecked(True)
+    
+
+    ################
+    #### Events ####
+    ################
+    def closeEvent(self, event: QCloseEvent) -> None:
+        """Overloads QMainWindow default closeEvent(QCloseEvent) event"""
+        QMessageBox.StandardButton resBtn = QMessageBox::question( this, APP_NAME,
+                                                                self.tr("Are you sure?\n"),
+                                                                QMessageBox::Cancel | QMessageBox::No | QMessageBox::Yes,
+                                                                QMessageBox::Yes);
+        pass
     
 
-    def printButtonPressed(self, func_name: str):
+    #################################
+    #### Helper member functions ####
+    #################################
+    def printButtonPressed(self, func_name: str) -> None:
+        #TODO: remove
         self.label.setText("hello")
         
 
@@ -171,7 +213,8 @@ class MainWindow(QMainWindow, Ui_MainWindow):
         alert.setText("Called from " + func_name + '!')
         alert.exec_()
 
-    def update_statusbar(self, msg: str):
+    def update_statusbar(self, msg: str) -> None:
+        """Write the given str to the statusbar with temporarily policy."""
         self.statusbar.showMessage(msg)