add 10 new tracks button

engine/api.py

@@ -631,7 +631,6 @@ def newEmptyTrack():
     insertTrack(newIndex, newTrack) #handles callbacks and undo
     return (id(newTrack))
 
-
 def deleteTrack(trId):
     """Can not delete hidden tracks because these don't implement undo.
     A hidden track is already considered "deleted" by the program.

qtgui/trackEditor.py

@@ -323,6 +323,10 @@ class TrackEditor(QtWidgets.QWidget):
         self.addTrackButton.clicked.connect(api.newEmptyTrack)
         self.layout.addWidget(self.addTrackButton)
 
+        self.addTenTracksButton = QtWidgets.QPushButton("add ten tracks placeholder text")
+        self.addTenTracksButton.clicked.connect(self.addTenTracks)
+        self.layout.addWidget(self.addTenTracksButton)
+
         #Upbeat Tick Widget and Action-Button
         allUpbeats = QtWidgets.QWidget()
         allUpbeatsLayout = QtWidgets.QHBoxLayout()
@@ -347,6 +351,10 @@ class TrackEditor(QtWidgets.QWidget):
         unfoldAllAdvanvced.clicked.connect(self.unfoldAllAdvanced)
         allUpbeatsLayout.addWidget(unfoldAllAdvanvced)
 
+    def addTenTracks(self):
+        for i in range(10):
+            api.newEmptyTrack()
+
     def updateTrackWidgets(self, listOfStaticTrackRepresentations):
         """React to the backend adding, deleting, hiding or moving tracks.
         A track widget persists until the track gets deleted. No re-creation on every change. """
@@ -378,6 +386,7 @@ class TrackEditor(QtWidgets.QWidget):
 
         numberOfTracks = trackExportObject["index"]+1
         self.addTrackButton.setText(translate("trackEditorPythonFile", "Add new Track (currently: ") + str(numberOfTracks) + ")")
+        self.addTenTracksButton.setText(translate("trackEditorPythonFile", "Add 10 new Tracks (currently: ") + str(numberOfTracks) + ")")
 
         for trId in leftOver: #track still exist here but not in the backend. Delete.
             w = self.tracks[trId]