feat: update combobox behavior

libs/__init__.py

@@ -1,2 +1,2 @@
-__version_info__ = ('1', '8', '7')
+__version_info__ = ('1', '8', '8')
 __version__ = '.'.join(__version_info__)

libs/combobox.py

@@ -29,5 +29,9 @@ def __init__(self, parent=None, items=[]):
     def update_items(self, items):
         self.items = items
 
+        current_text = "[SHOW ALL]" if self.cb.currentText() == "" else self.cb.currentText()
+        new_index = items.index(current_text)
         self.cb.clear()
         self.cb.addItems(self.items)
+        self.cb.setCurrentIndex(new_index)
+

mlabelImg.py

@@ -841,9 +841,9 @@ def update_combo_box(self):
 
         unique_text_list = list(set(items_text_list))
         # Add a null row for showing all the labels
-        unique_text_list.append("")
         unique_text_list.sort()
-
+        unique_text_list.insert(0, "[SHOW ALL]")
+        unique_text_list.insert(1, "[HIDE ALL]")
         self.combo_box.update_items(unique_text_list)
 
     def save_labels(self, annotation_file_path):
@@ -895,8 +895,10 @@ def copy_selected_shape(self):
     def combo_selection_changed(self, index):
         text = self.combo_box.cb.itemText(index)
         for i in range(self.label_list.count()):
-            if text == "":
+            if text == "[SHOW ALL]":
                 self.label_list.item(i).setCheckState(2)
+            elif text == "[HIDE ALL]":
+                self.label_list.item(i).setCheckState(0)
             elif text != self.label_list.item(i).text():
                 self.label_list.item(i).setCheckState(0)
             else: