refactor main_window and add app state signals for full aplication signaling

Author: mwinkens

src/config/app_state.py

@@ -7,6 +7,7 @@
 from PyQt6.QtGui import QPixmap
 
 from src.backend.rule_manager import RuleManager
+from src.signals.signal_emitter import ApplicationStatusEmitter, ApplicationStatusEnum
 
 
 class AppState:
@@ -18,6 +19,7 @@ def __init__(self):
     def _init(self):
         self.rule_manager: RuleManager = RuleManager()
         self.main_image_path: Optional[str] = None
+        self.signal_emitter = ApplicationStatusEmitter()
 
     @classmethod
     def instance(cls):
@@ -37,3 +39,10 @@ def ruleManager(cls):
     @classmethod
     def setImagePath(cls, image_path):
         cls.instance().main_image_path = image_path
+        cls.instance().signal_emitter.application_status_signal.emit(ApplicationStatusEnum.IMAGE_LOADED, "")
+
+    @classmethod
+    def setStatus(cls, status_type: ApplicationStatusEnum, message: str):
+        if status_type == ApplicationStatusEnum.IMAGE_LOADED:
+            raise ValueError(f"Application status {status_type} is not allowed for messaging")
+        cls.instance().signal_emitter.application_status_signal.emit(status_type, message)

src/main_window.py

@@ -0,0 +1,69 @@
+import sys
+
+from PyQt6.QtCore import Qt
+from PyQt6.QtGui import QPixmap, QAction
+from PyQt6.QtWidgets import QMainWindow, QFileDialog, QScrollArea, QMessageBox
+
+from src.dialogs.dialog_config_settings import ConfigSettingsDialog
+from src.dockwidgets.dockwidget_mapper_generator import MapperGeneratorDockwidget
+from src.widgets.widget_image_selector import ImageSelectorWidget
+from src.config.app_state import AppState
+from src.signals.signal_emitter import ApplicationStatusEnum
+
+
+class MainWindow(QMainWindow):
+    def __init__(self, parent=None):
+        super().__init__(parent)
+        self.setWindowTitle("Simple DDNet Automapper")
+        self.resize(800, 600)  # Set initial size if needed
+        self.central_widget = ImageSelectorWidget(self)
+        # scroll_area = QScrollArea(self)
+        # scroll_area.setWidget(self.central_widget)
+        self.setCentralWidget(self.central_widget)
+
+        # Main layout
+        self.mapper_generator = MapperGeneratorDockwidget()
+        self.mapper_generator.setAllowedAreas(
+            Qt.DockWidgetArea.LeftDockWidgetArea | Qt.DockWidgetArea.RightDockWidgetArea)
+        self.addDockWidget(Qt.DockWidgetArea.RightDockWidgetArea, self.mapper_generator)
+        self.mapper_generator.setDisabled(True)  # disable until image is loaded
+
+        # Create menu bar
+        menubar = self.menuBar()
+
+        # Create File menu
+        file_menu = menubar.addMenu('&File')
+
+        # Add Open action to File menu
+        open_action = QAction('&Open', self)
+        open_action.setShortcut('Ctrl+O')
+        open_action.triggered.connect(self.central_widget.select_image)
+        file_menu.addAction(open_action)
+
+        # Add Settings action to File menu
+        settings_action = QAction('&Settings', self)
+        settings_action.triggered.connect(self.openSettings)
+        file_menu.addAction(settings_action)
+
+        # Create Help menu
+        help_menu = menubar.addMenu('&Help')
+
+        # Add About action to Help menu
+        about_action = QAction('&About', self)
+        about_action.triggered.connect(self.showAbout)
+        help_menu.addAction(about_action)
+
+        # connect app to app state signal emitter
+        AppState.instance().signal_emitter.application_status_signal.connect(self.statusUpdateReceived)
+
+    def openSettings(self):
+        ConfigSettingsDialog(self).exec()
+
+    def showAbout(self):
+        QMessageBox.about(self, 'About', 'This is a PyQt6 menu example.')
+
+    def statusUpdateReceived(self, status_type: ApplicationStatusEnum, message: str):
+        if status_type == ApplicationStatusEnum.IMAGE_LOADED:
+            self.mapper_generator.setEnabled(True)
+            # TODO set status dockwidget "Successfully loaded image"
+        pass

src/signals/signal_emitter.py

@@ -1,6 +1,17 @@
 from PyQt6.QtCore import pyqtSignal, QObject
+from enum import Enum
 
 
 class ConfigurationClickedEmitter(QObject):
     neighbor_signal = pyqtSignal(int, name="NeighborClick")
     modification_signal = pyqtSignal(int, bool, name="ModificationSignal")
+
+
+class ApplicationStatusEnum(Enum):
+    IMAGE_LOADED = "ImageLoaded"
+    WARNING = "Warning"
+    INFO = "Info"
+
+
+class ApplicationStatusEmitter(QObject):
+    application_status_signal = pyqtSignal(ApplicationStatusEnum, str, name="ApplicationStatus")

viewer.py

@@ -7,57 +7,7 @@
 from src.dialogs.dialog_config_settings import ConfigSettingsDialog
 from src.dockwidgets.dockwidget_mapper_generator import MapperGeneratorDockwidget
 from src.widgets.widget_image_selector import ImageSelectorWidget
-
-
-class MainWindow(QMainWindow):
-    def __init__(self, parent=None):
-        super().__init__(parent)
-        self.setWindowTitle("Simple DDNet Automapper")
-        self.resize(800, 600)  # Set initial size if needed
-        self.central_widget = ImageSelectorWidget(self)
-        # scroll_area = QScrollArea(self)
-        # scroll_area.setWidget(self.central_widget)
-        self.setCentralWidget(self.central_widget)
-
-        # Main layout
-        # main_layout = QHBoxLayout(self.central_widget)
-        self.create_dock_windows()
-
-        # Create menu bar
-        menubar = self.menuBar()
-
-        # Create File menu
-        file_menu = menubar.addMenu('&File')
-
-        # Add Open action to File menu
-        open_action = QAction('&Open', self)
-        open_action.setShortcut('Ctrl+O')
-        open_action.triggered.connect(self.central_widget.select_image)
-        file_menu.addAction(open_action)
-
-        # Add Settings action to File menu
-        settings_action = QAction('&Settings', self)
-        settings_action.triggered.connect(self.openSettings)
-        file_menu.addAction(settings_action)
-
-        # Create Help menu
-        help_menu = menubar.addMenu('&Help')
-
-        # Add About action to Help menu
-        about_action = QAction('&About', self)
-        about_action.triggered.connect(self.showAbout)
-        help_menu.addAction(about_action)
-
-    def create_dock_windows(self):
-        dock = MapperGeneratorDockwidget()
-        dock.setAllowedAreas(Qt.DockWidgetArea.LeftDockWidgetArea | Qt.DockWidgetArea.RightDockWidgetArea)
-        self.addDockWidget(Qt.DockWidgetArea.RightDockWidgetArea, dock)
-
-    def openSettings(self):
-        ConfigSettingsDialog(self).exec()
-
-    def showAbout(self):
-        QMessageBox.about(self, 'About', 'This is a PyQt6 menu example.')
+from src.main_window import MainWindow
 
 
 def main():