Improves serial port information display

Enhances the serial port connection process by displaying more detailed information about the selected port upon connection.

Additionally, refactors the serial data display to handle different color schemes for day and night modes, ensuring better readability.

Also, ensures proper thread termination on application close to prevent resource leaks.

Author: Mehmet Aksoy

src/ui_main.py

@@ -378,7 +378,18 @@ def on_start_button_clicked(self):
             return
         is_serial_port_established = True
         # change start_button to stop button
-        self.ui.options_textEdit.setText('Disconnected!')
+        # Get more info about the selected port
+        port_info = None
+        selected_port = self.ui.port_comboBox.currentText()
+        for p in serial.tools.list_ports.comports():
+            if p.device == selected_port:
+                port_info = p
+                break
+        if port_info:
+            info_text = f"RX/TX Connected to: {port_info.device}\nDescription: {port_info.description}\nManufacturer: {getattr(port_info, 'manufacturer', 'N/A')}\nHWID: {port_info.hwid}"
+        else:
+            info_text = f"RX/TX Connected to: {selected_port}"
+        self.ui.options_textEdit.setText(info_text)
         self.ui.start_button.setText("STOP")
         self.ui.start_button.setStyleSheet('color: red;')
 
@@ -398,7 +409,7 @@ def on_start_button_clicked(self):
             self.thread.finished.connect(self.thread.deleteLater)
 
             self.enable_configuration(False)
-            self.ui.options_textEdit.setText('RX/TX Connected!')
+            self.ui.options_textEdit.setText('RX/TX Connected to the: ' + str(SERIAL_DEVICE.portstr))
             self.ui.status_label.setText("CONNECTED!")
             self.ui.status_label.setStyleSheet('color: green')
             # start the thread
@@ -449,8 +460,14 @@ def read_data_from_thread(self, serial_data):
                 " Possibly it is not connected or the port is not available!")
             self.on_stop_button_clicked()
         else:
-            # Replace CRLF and LF with <br> for HTML display
             html_data = ansi_to_html(serial_data.replace('\r\n', '<br>').replace('\n', '<br>'))
+            # Adjust text color for day/night mode
+            if hasattr(self, 'night_mode_enabled') and self.night_mode_enabled:
+                # Night mode: convert black text to white
+                html_data = html_data.replace('color:black;', 'color:white;')
+            else:
+                # Day mode: convert white text to black
+                html_data = html_data.replace('color:white;', 'color:black;')
             self.ui.data_textEdit.insertHtml(html_data)
             self.ui.data_textEdit.verticalScrollBar().setValue(
                 self.ui.data_textEdit.verticalScrollBar().maximum())
@@ -498,6 +515,10 @@ def enable_night_mode(self):
     def closeEvent(self, event):
         # Properly stop the worker and thread before closing
         self.stop_worker_thread()
+        if hasattr(self, 'thread') and self.thread is not None:
+            if self.thread.isRunning():
+                self.thread.quit()
+                self.thread.wait(2000)  # Wait up to 2 seconds for thread to finish
         event.accept()
 
 def start_ui_design():