Preferences, singletons

Create a Preference dialog for fonts and audio output devices

Turn Preferences and SoundOff into singletons.  No matter how many times
you request a new one, the same instance is returned.

Stop using singals on the parent() to access other instances, such as
sound and Preferences.

lib/read.py

@@ -18,7 +18,6 @@ from PyQt6.QtCore import (
 from PyQt6.QtGui import (
     QBrush,
     QColor,
-    QFont,
     QKeyEvent,
     QMouseEvent,
     QPainter,
@@ -35,21 +34,32 @@ from PyQt6.QtWidgets import QDialog, QPushButton
 
 from main import query_error
 from ui.EditDialog import Ui_Dialog
-
+from lib.preferences import Preferences
+from lib.sounds import SoundOff
 
 class EditDialog(QDialog, Ui_Dialog):
+    playSound = pyqtSignal(str)
     block: int
     paragraphs = True
     sessionSignal = pyqtSignal()
     displayedWord = pyqtSignal(int)
     newParagraph = pyqtSignal(int, int)
-
+    
     def __init__(self, parent, session, person_id: int) -> None:
         self.session = session
         super(EditDialog, self).__init__(parent)
-        print(self.parent())
         self.person_id = person_id
+        self.preferences = Preferences().get()
+        self.sound = SoundOff()
         styleSheet = QResource(":/display.css").data().decode("utf-8")
+        print(styleSheet)
+        styleSheet = styleSheet.replace(
+            '{readerFont}',self.preferences['readerFont']
+        )
+        styleSheet =  styleSheet.replace(
+            '{phoneticFont}',self.preferences['phoneticFont']
+        )
+        print(styleSheet)
         self.setupUi(self)
         #
         # Override UI
@@ -75,8 +85,6 @@ class EditDialog(QDialog, Ui_Dialog):
         self.scrollBtn.clicked.connect(self.scrollAction)
         self.nextBtn.clicked.connect(self.nextAction)
         self.prevBtn.clicked.connect(self.prevAction)
-        # self.sessionSignal.connect(self.session.timerAction)
-        # self.sessionBtn.clicked.connect(self.sessionAction)
         self.sessionBtn.clicked.connect(self.session.timerAction)
         self.paraEdit.verticalScrollBar().valueChanged.connect(self.scrollSlot)
         self.defEdit.selectionChanged.connect(self.recursiveDef)
@@ -85,6 +93,8 @@ class EditDialog(QDialog, Ui_Dialog):
         #
         self.displayedWord.connect(self.session.addWord)
         self.newParagraph.connect(self.session.addBlock)
+        self.playSound.connect(self.sound.playSound)
+        #self.alert.connect(self.sound.alert)
         return
 
     #
@@ -161,14 +171,14 @@ class EditDialog(QDialog, Ui_Dialog):
                 self.phonetics = data["phonetics"]
             else:
                 self.phonetics = None
-        print("Checking for phonetics")
         if not self.phonetics:
             return
-        print("Looking for audio")
+        print("Searching for audio file")
         for entry in self.phonetics:
             if len(entry["audio"]) > 0:
                 # self.parent().playAlert.emit()
-                self.parent().playSound.emit(entry["audio"])
+                print(f"playing {entry['audio']}")
+                self.playSound.emit(entry["audio"])
         return
 
     @pyqtSlot()