Labels will be added to history and re-use it while showing pop window

libs/labelDialog.py

@@ -7,7 +7,7 @@ BB = QDialogButtonBox
 
 class LabelDialog(QDialog):
 
-    def __init__(self, text="Enter object label", parent=None):
+    def __init__(self, text="Enter object label", parent=None, listItem=None):
         super(LabelDialog, self).__init__(parent)
         self.edit = QLineEdit()
         self.edit.setText(text)
@@ -21,6 +21,14 @@ class LabelDialog(QDialog):
         bb.accepted.connect(self.validate)
         bb.rejected.connect(self.reject)
         layout.addWidget(bb)
+
+        if listItem is not None and len(listItem) > 0:
+            self.listWidget = QListWidget(self)
+            for item in listItem:
+                self.listWidget.addItem(item)
+            self.listWidget.itemDoubleClicked.connect(self.listItemClick)
+            layout.addWidget(self.listWidget)
+
         self.setLayout(layout)
 
     def validate(self):
@@ -38,3 +46,6 @@ class LabelDialog(QDialog):
             self.move(QCursor.pos())
         return self.edit.text() if self.exec_() else None
 
+    def listItemClick(self, tQListWidgetItem):
+        text = tQListWidgetItem.text().trimmed()
+        self.edit.setText(text)