Merge pull request #207 from luoyetx/color

change color when label has changed

labelImg.py

@@ -607,6 +607,7 @@ class MainWindow(QMainWindow, WindowMixin):
         text = self.labelDialog.popUp(item.text())
         if text is not None:
             item.setText(text)
+            item.setBackground(generateColorByText(text))
             self.setDirty()
 
     # Tzutalin 20160906 : Add file list and dock to move faster
@@ -752,6 +753,7 @@ class MainWindow(QMainWindow, WindowMixin):
         label = item.text()
         if label != shape.label:
             shape.label = item.text()
+            shape.line_color = generateColorByText(shape.label)
             self.setDirty()
         else:  # User probably changed item visibility
             self.canvas.setShapeVisible(shape, item.checkState() == Qt.Checked)