[
https://issues.apache.org/jira/browse/OPENMEETINGS-733?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13728772#comment-13728772
]
Andun Sameera Liyanagunawardana commented on OPENMEETINGS-733:
--------------------------------------------------------------
I am putting debug log form the whiteboard. Why I am putting this is I am in a
confusing situation while implementing the Undo. To explain the situation tkae
this example,
{"id":0,"type":"PointFree","y":20,"x":-455}
Above JSON object represent a point drawn on the whiteboard.
{"id":1,"type":"PointFree","y":53,"x":-345}
{"id":2,"type":"PointFree","y":0,"x":-254}
{"id":3,"p2":2,"p1":1,"type":"PencilRect"}
Above JSON object set represent a rectangle drawn on the whiteboard.
{"id":3,"p2":2,"color":"#0000ff","p1":1,"type":"PencilRect"}
Above JSON object represent a color change of the rectangle on the whiteboard.
Likewise for a when curved line is drawn it gives a long sequence of JSON
objects which represent the line. Thus Undo should happen regarding what
happens on the whiteboard. My problem is how to identify what happen on the
white board, when a sequence of JSON object are coming from the whiteboard. How
can we identify steps to Undo?
Whiteboard debug log -
{"id":0,"type":"PointFree","y":20,"x":-455}
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{"id":14,"p2":13,"p1":12,"type":"PencilFreeLine"}
> Wicket based Whiteboard should provide Undo feature
> ---------------------------------------------------
>
> Key: OPENMEETINGS-733
> URL: https://issues.apache.org/jira/browse/OPENMEETINGS-733
> Project: Openmeetings
> Issue Type: Sub-task
> Components: HTML5, UI
> Affects Versions: 3.0.0 Apache Release
> Reporter: Andun Sameera Liyanagunawardana
> Assignee: SebastianWagner
> Fix For: 3.0.0 Apache Release
>
>
> Wicket based Whiteboard should provide Undo feature
--
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