change font size

main.py

@@ -7,6 +7,7 @@ import sys
 
 from bigtext import BigText
 from logFileModel import LogFileModel
+from settings import Settings
 
 MAX_LINE_LENGTH = 4096
 
@@ -15,28 +16,53 @@ class MainWindow(QMainWindow):
     def __init__(self, *args, **kwargs):
         super(MainWindow, self).__init__(*args, **kwargs)
 
+        self.settings = Settings()
         self.setWindowTitle("RavenLog")
         self.setGeometry(0, 0, 640, 480)
         self.setDockNestingEnabled(True)
 
-        self.setCentralWidget(self.create_tabs())
-        self.addToolBar(QToolBar("main toolbar"))
+        self.tabs = self.create_tabs()
+        self.setCentralWidget(self.tabs)
+        self.main_tool_bar = self.create_main_tool_bar()
+        self.addToolBar(self.main_tool_bar)
         self.setStatusBar(QStatusBar(self))
         self.setMenuBar(self.create_menu_bar())
 
-    @staticmethod
-    def create_tabs() -> QTabWidget:
+    def create_main_tool_bar(self):
+        result = QToolBar("main toolbar")
+        follow_file = QCheckBox("Follow File")
+        follow_file.toggled.connect(self.on_follow_file_changed)
+        result.addWidget(follow_file)
+
+        result.addWidget(QLabel("Font Size:"))
+        font_size = QComboBox(result)
+        for s in range(3,30):
+            font_size.addItem(str(s))
+        font_size.setCurrentText(str(self.settings.get_font_size()))
+        font_size.currentTextChanged.connect(self.update_font_size)
+        result.addWidget(font_size)
+
+        return result
+
+    def update_font_size(self, font_size):
+        self.settings.font_size(int(font_size))
+        self.tabs.update()
+
+    def on_follow_file_changed(self, e):
+        print(e)
+
+    def create_tabs(self) -> QTabWidget:
         tabs = QTabWidget()
         tabs.setTabsClosable(True)
 
 
         #model = LogFileModel("/home/andi/ws/performanceDb/data/production/logs_2018-09-06_2018-09-06.csv")
         model = LogFileModel("/home/andi/ws/ravenlog/example.log")
-        big_text = BigText(model)
+        big_text = BigText(model, self.settings)
         tabs.addTab(big_text, "small")
 
         model = LogFileModel("/home/andi/ws/performanceDb/data/production/logs_2018-09-06_2018-09-06.csv")
-        big_text = BigText(model)
+        big_text = BigText(model, self.settings)
         tabs.addTab(big_text, "big")
 
         return tabs