Implemented closing tabs.

connect_gui.py

@@ -3,3 +3,4 @@
 def connect_gui(app):
     app.main_window.openFile.triggered.connect(app.file_actions.open_files)
     app.main_window.saveFile.triggered.connect(app.file_actions.save_current_file)
+    app.main_window.openFileTabs.tabCloseRequested.connect(app.file_actions.close_current_file)

file.py

@@ -33,6 +33,12 @@ class FileActions:
 
         self.save_file(current_file_path)
 
+    def close_current_file(self):
+        tab_index = self.app.main_window.openFileTabs.currentIndex()
+        self.app.main_window.openFileTabs.removeTab(tab_index)
+        current_file_path = self.app.main_window.openFileTabs.currentWidget().objectName()
+        del self.app.open_files[current_file_path]
+
 
 class File:
     def __init__(self, app, path, name):

gui/raw_ui/main_window.ui

@@ -20,6 +20,12 @@
       <property name="currentIndex">
        <number>-1</number>
       </property>
+      <property name="tabsClosable">
+       <bool>true</bool>
+      </property>
+      <property name="movable">
+       <bool>false</bool>
+      </property>
      </widget>
     </item>
    </layout>