add icons to actions

bigtext.py

@@ -136,9 +136,7 @@ class InnerBigText(QWidget):
         elif e.modifiers() == Qt.KeyboardModifier.ControlModifier and e.key() == 67:  # ctrl + c
             self.copy_selection()
         elif e.modifiers() == Qt.KeyboardModifier.ControlModifier and e.key() == 65:  # ctrl + a
-            self.selection_highlight.start_byte = 0
-            self.selection_highlight.end_byte = self.model.byte_count()
-            self.update()
+            self._select_all()
 
     def wheelEvent(self, event: QWheelEvent):
         direction = 1 if event.angleDelta().y() < 0 else -1
@@ -156,15 +154,22 @@ class InnerBigText(QWidget):
     def _open_menu(self, position):
         menu = QMenu(self)
 
-        copy_clipboard = QAction(self.tr("&Copy to Clipboard"), self, triggered=self.copy_selection)
+        copy_clipboard = QAction(QIcon.fromTheme("edit-copy"), self.tr("&Copy to Clipboard"), self,
+                                 triggered=self.copy_selection)
         copy_clipboard.setShortcut("CTRL+C")
         copy_clipboard.setDisabled(not self._has_selection())
         menu.addAction(copy_clipboard)
 
-        copy_to_file = QAction(self.tr("Copy to &File"), self, triggered=self._copy_selection_to_file)
+        copy_to_file = QAction(QIcon.fromTheme("document-save-as"), self.tr("Copy to &File"), self,
+                               triggered=self._copy_selection_to_file)
         copy_to_file.setDisabled(not self._has_selection())
         menu.addAction(copy_to_file)
 
+        select_all = QAction(QIcon.fromTheme("edit-select-all"), self.tr("Select &All"), self,
+                             triggered=self._select_all)
+        select_all.setShortcut("CTRL+A")
+        menu.addAction(select_all)
+
         manage_highlighting = QAction(
             self.tr("&Highlighter"),
             self,
@@ -328,6 +333,11 @@ class InnerBigText(QWidget):
             if selected_file:
                 self.model.write_range(start, end, selected_file)
 
+    def _select_all(self):
+        self.selection_highlight.start_byte = 0
+        self.selection_highlight.end_byte = self.model.byte_count()
+        self.update()
+
     def paintEvent(self, event: QPaintEvent) -> None:
         # print("paintEvent")
         painter = QPainter(self)