D13099: piano_composition, add undo feature

[Aman Kumar Gupta]

amankumargupta created this revision.
amankumargupta added a reviewer: GCompris: Activities.
amankumargupta added a project: GCompris: Activities.
Restricted Application added a project: KDE Edu.
Restricted Application added a subscriber: kde-edu.
amankumargupta requested review of this revision.

REVISION SUMMARY
  Added undo feature for 5 most recent changes.

REPOSITORY
  R2 GCompris

REVISION DETAIL
  https://phabricator.kde.org/D13099

AFFECTED FILES
  src/activities/piano_composition/MultipleStaff.qml
  src/activities/piano_composition/Piano_composition.qml
  src/activities/piano_composition/Staff.qml
  src/activities/piano_composition/piano_composition.js
  src/activities/piano_composition/resource/undo.svg

To: amankumargupta, #gcompris_activities
Cc: kde-edu, #gcompris_activities, himanshuvishwakarma, harrymecwan, ganeshredcobra, nityanandkumar, echarruau, rahulyadav, narvaez, scagarwal, apol, timotheegiet, hkaelberer, jjazeix, bcoudoin
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