I would totally disagree with "At the Wicket Java code we save these elements as Java Objecst which contains the JSON strings."
Java objects should contain normal fields like "Point center; int radius;" and be (de)serialized (from)into JSON if necessary. On Tue, Jul 2, 2013 at 2:27 PM, Andun Sameera <andun...@gmail.com> wrote: > Hi Andrey, > > Great! If you can give me a example for, > > collection.onChange(element) > > it will be highly appreciated. > > @Maxim, > > After some thinking I cam across of this idea. Please correct me If I am > wrong. > > - All the whiteboard elements can be represented as JSON strings (Have > to find a way to add PDF,DOCs, Pictures to whiteboard in this way) > - At the Wicket Java code we save these elements as Java Objecst which > contains the JSON strings. > - To synchronize white board we can send these object to all the > viewers. > - To save/load we can use this already implemented JSON based > serialization and de-serialization. > > But have to find ways to get all these data from closure implementation to > wicket! > > Thanks! > On Tue, Jul 2, 2013 at 11:28 AM, Bogdanov Andrey <ba...@mail.ru> wrote: > >> Hi Andun, >> >> Whiteboard consists of two main objects: ui-component >> "bay.whiteboard.Whiteboard", which contains functionality for user >> interaction and collections of objects "bay.whiteboard.Collection" which >> contains list of objects and some stuff to manipulate them. >> After createing WB with >> whiteboard = bay.whiteboard.Create(); >> you could access to collection as >> collection = whiteboard.collections.main; or >> collection = whiteboard.getMainCollection(); - i've just added this >> method >> >> After that you could define >> collection.onChange(element) - method wich will be invoked every time >> when some drawing elements add or change. >> Also you could use methods: >> collection.getJson(element); - to obtain json code for an element >> collection.jsonCode(); - to obtain json code for whole collection >> collection.acceptJsonStr(str); - to add or change one element >> described as json >> collection.parseJson(str); - to rebuild all from the given json >> string >> >> >> As an example you could explore linkWebSocket method in ui.js, which >> allows synchronize wb-content through webSocket >> >> Regards, >> Andrey Bogdanov >> >> Вторник, 2 июля 2013, 1:25 +05:30 от Andun Sameera <andun...@gmail.com>: >> >> Hi Andrey, >> >> I am moving in to this new thread to discuss about the clarifications, >> improvements and integration of your Whiteboard to wicket. I have looked at >> your code which can be found https://github.com/bay73/whiteboard. I have >> following questions, >> >> - In Wicket, I want map Whiteboard Elements(Rectangle, Circle, Text, >> etc.) to Java objects. >> - Thus we can send those object to all the Whiteboard viewers. >> - Using these objects there Whiteboards will be updated. >> - To do that, can I get some data from your code? which can be later >> used to create elements. I saw there is a serialization methods and >> deserilization method in base.js. If we can extend that mechanism to give >> some data when element is drawn or edited as an event, I can use them to >> create Java objects. >> - Also there should be a mechanism to draw elements on your >> Whiteboard by passing those data. >> >> Can we do these things? >> >> Thanks! >> -- >> Regards >> Andun S.L. Gunawardana >> Undergraduate >> Department of Computer Science And Engineering >> University of Moratuwa >> Sri Lanka >> >> Blog - http://www.insightforfuture.blogspot.com/ >> LinkedIn - http://www.linkedin.com/pub/andun-s-l-gunawardana/34/646/703 >> Twitter -http://twitter.com/AndunSLG >> >> >> >> >> >> >> >> -- >> Андрей Богданов >> > > > > -- > Regards > Andun S.L. Gunawardana > Undergraduate > Department of Computer Science And Engineering > University of Moratuwa > Sri Lanka > > Blog - http://www.insightforfuture.blogspot.com/ > LinkedIn - http://www.linkedin.com/pub/andun-s-l-gunawardana/34/646/703 > Twitter -http://twitter.com/AndunSLG > > > > > -- WBR Maxim aka solomax
