Refactor GUI to use Multi Document Interface

python/kontor-gui/gui/main_window.py

@@ -1,5 +1,5 @@
 from PySide6.QtGui import QAction, QIcon, QGuiApplication
-from PySide6.QtWidgets import QWidget, QVBoxLayout, QMenu, QMessageBox, QTabWidget, QTableView, QProgressBar
+from PySide6.QtWidgets import QWidget, QVBoxLayout, QMenu, QMessageBox, QTabWidget, QTableView, QProgressBar, QMdiArea
 from PySide6.QtWidgets import QLabel, QMainWindow
 from sqlalchemy import Engine
 from kontor_schema import KontorDB
@@ -22,32 +22,39 @@ class MainWindow(QMainWindow):
         self.export_icon = QIcon("res/application-export.png")
         self.circle_icon = QIcon("res/arrow-circle-double.png")
 
+        self.data = []
+        self.filter = {}
+        self.kontor_db = KontorDB(engine, log)
+        self.log = log
+        self._subwindows = {}
+
+        self._setup_ui()
+
+
+        #self.tabs = QTabWidget()
+        #self.tabs.addTab(self.generate_data_tab("comic"), "Comics")
+        #self.tabs.addTab(self.generate_data_tab("media_file"), "MediaFile")
+        #self.tabs.currentChanged.connect(self._tab_changed)
+        #label.setAlignment(Qt.AlignmentFlag.AlignCenter)
+        #parent_layout.addWidget(self.tabs)
+
+        self.setCentralWidget(self.central_widget)
+
+    def _setup_ui(self):
         self.setWindowTitle("Kontor")
-        self.setMinimumSize(800, 500)
+        self.setMinimumSize(1200, 800)
         self._create_actions()
+        self.central_widget = QWidget()
+        # parent_layout = QVBoxLayout()
+        # self.central_widget.setLayout(parent_layout)
+        self.mdi_area = QMdiArea(self.central_widget)
+        self.mdi_area.setObjectName('mdi_area')
+        self.setCentralWidget(self.central_widget)
         self._create_menubar()
         self._create_toolbars()
         self.status_progress = QProgressBar()
         self.progress_update = ProgressUpdate(self.status_progress)
         self._create_statusbar()
-
-        self.data = []
-        self.filter = {}
-        self.kontor_db = KontorDB(engine, log)
-        self.log = log
-
-        self.comic_window = ComicWindow(self)
-        self.central_widget = QWidget()
-        parent_layout = QVBoxLayout()
-        self.central_widget.setLayout(parent_layout)
-        self.tabs = QTabWidget()
-        self.tabs.addTab(self.generate_data_tab("comic"), "Comics")
-        self.tabs.addTab(self.generate_data_tab("media_file"), "MediaFile")
-        self.tabs.currentChanged.connect(self._tab_changed)
-        #label.setAlignment(Qt.AlignmentFlag.AlignCenter)
-        parent_layout.addWidget(self.tabs)
-
-        self.setCentralWidget(self.central_widget)
         centerPoint = QGuiApplication.screens()[0].geometry().center()
         self.move(centerPoint - self.frameGeometry().center())
 
@@ -117,10 +124,26 @@ class MainWindow(QMainWindow):
         QMessageBox.about(self.central_widget, "Über Kontor", f"Python: 3.11\nKontor: 0.1.0")
 
     def show_comic_window(self):
-        if self.comic_window.isHidden():
-            self.comic_window.show()
+        if 'comic' not in self._subwindows:
+            comic = ComicWindow(self)
+            comic.closed.connect(self.sub_window_closed)
+            self._subwindows['comic'] = comic
+            self.mdi_area.addSubWindow(comic)
+            comic.show()
         else:
-            self.comic_window.hide()
+            comic = self._subwindows.pop('comic')
+            comic.close()
+            self.mdi_area.removeSubWindow(comic)
+
+    def remove_sub_window(self, name: str):
+        # self.log.info("remove subwindow %s", name)
+        if name in self._subwindows:
+            window = self._subwindows.pop(name)
+            window.close()
+            self.mdi_area.removeSubWindow(window)
+
+    def sub_window_closed(self):
+        self.log.info("close subwindow")
 
     def import_from_file(self):
         import_dlg = ImportKontorDialog(self)
@@ -162,10 +185,17 @@ class MainWindow(QMainWindow):
         self.kontor_db.check_files()
 
     def refresh(self):
-        self.data[self.tabs.currentIndex()].refresh()
+        self.log.info("refresh")
+        for (_, window) in self._subwindows.items():
+            window.refresh()
+    # def refresh(self):
+    #    self.data[self.tabs.currentIndex()].refresh()
 
-    def _tab_changed(self, tab_index):
-        self.data[tab_index].refresh()
+    # def _tab_changed(self, tab_index):
+    #    self.data[tab_index].refresh()
+
+    def update_status(self, message, timeout=3000):
+        self.statusBar.showMessage(message, timeout=timeout)
 
     def generate_data_tab(self, table_name):
         data_tab = QWidget()
@@ -181,3 +211,4 @@ class MainWindow(QMainWindow):
         layout.addWidget(table_view)
         model.refresh()
         return data_tab
+