Thank you so much Tim for this complete answer. I will use the last to stick to the cairgorm recommendations. The technique is simple and clean.
--- In [email protected], "Tim Hoff" <[EMAIL PROTECTED]> wrote: > > > Ah yes, it gets a little more complicated if the button is in a > different view than the video. If you weren't using Cairngorm, I > would suggest dispatching a custom button event that is listened for in > the video view. Then take the snapshot and pass the data. The idea > with Cairngorm is to make the views reusable and avoid coupling to other > views. The Cairngorm gurus would probably suggest the following > approach. > > Create a Boolean variable in the ModelLocator called takeSnapshot. On > the button click event, dispatch an event-command that updates the > variable to true. In the video view use an ObserveValue > <http://weblogs.macromedia.com/auhlmann/archives/2006/09/using_binding_s\ > .cfm#more> tag to listen for the change of the takeSnapshot variable to > true. The ObserveValue tag handler function would then take the > snapshot of the video and dispatch the CairngormEvent (with the > bitmapData). I still recommend that you store the bitmapData in the > ModelLocator and bind the data to the snapshot view. > > By following this approach, the child views don't care about their > parents and are able to be reused elsewhere. You could, of course, do > it the way that you mentioned. But I think that the way described above > is more in line with best practices. I hope that this gives you some > ideas. > > -TH > __________________________________ > > Tim Hoff > Cynergy Systems, Inc. > http://www.cynergysystems.com > Office <http://www.cynergysystems.comoffice/> : 866-CYNERGY > > --- In [email protected], "gdoucen" <gdoucen@> wrote: > > > > Thanks Tim for your answer but my problem come from the way i can > > gather all the data from differents views in a sole custom event. I > > agree with you for the rest. > > My button which trigger the event is in a separate view than the video > > display i want to take a snapshot. Of course here the problem is > > simple but i want to generalize it. > > > > I think that i was complicating the problem by trying to lead the > > event to the view that have the videodisplay which then send the custo > > event to the command. > > > > A better way is to simply confide in the parent container of the two > > view to send itself the custom event to the command cause it have > > access to the data all the view. > > > > <!-- my composite view --> > > <mx:VBox ...> > > <mx:Script> > > <![CDATA[ > > > > private function handleTakeASnapshot(event:snapshotOrderEvent):void > > { > > // Trigger the final event to the command > > var snapshotVo:SnapshotVO = new SnapshotVO(); > > snapshotVo.image = view1.getSnapshot(); > > var doSnapshotEvent:DoSnapshotEvent = new DoSnapshotEvent( > > snapshotVo ); > > CairngormEventDispatcher.getInstance().dispatchEvent( > > doSnapshotEvent ); > > } > > > > ]]> > > </mx:Script> > > <view:view1 id="view1" /> > > <view:view1 id="view2" myInititialEvent="handleTakeASnapshot(event)" > /> > > </mx:VBox> > > > > It 's correct and clean like that?. If i'm wrong tell me cause i'm a > > newbie with flex and cairngorm and i want to get the good reflex. > > > > Thanks again > > > > --- In [email protected], "Tim Hoff" TimHoff@ wrote: > > > > > > > > > Hi, > > > > > > Usually, if you're dealing with moving data around a Cairngorm > > > application, you would create a public variable (or VO) in the > > > ModelLocator. When you take a snapshot of the video, dispatch a > > > CairngormEvent that contains the bitmapData (I would do this in the > > > view's script; not a ViewHelper). In the command, update the > variable > > > in the ModelLocator with the data. Now you have the data in a > centrally > > > located position. If another view needs access to this data, simply > > > bind the view's control to the variable in the ModelLocator. As soon > as > > > the variable is updated by the command, the second view will > > > automatically reflect the change. > > > > > > This is a simple explanation and may not fit your particular use > case. > > > But hopefully it will give you some ideas. > > > > > > -TH > > > __________________________________ > > > > > > Tim Hoff > > > Cynergy Systems, Inc. > > > http://www.cynergysystems.com > > > Office <http://www.cynergysystems.comOffice> : 866-CYNERGY > > > > > > > > > > > > --- In [email protected], "gdoucen" <gdoucen@> wrote: > > > > > > > > Hi, > > > > > > > > My problem is the following. > > > > > > > > I use cairngorm framework. > > > > I have two views. the button in one view triggers an event that > need > > > > to get data from the other view. In my case, i take a snapshot of > the > > > > video so here i need the bitmap data. > > > > > > > > I see two solutions. > > > > > > > > First, using viewhelper/viewLocator to get the data from the > dedicated > > > > view inside the command class. > > > > > > > > I know that viewhelper are mostly not recommended by cairngorm in > the > > > > opposite side when it's used to set views from commands but here. > > > > > > > > Secondly, use the parent of the two views to transmit the event > from > > > > view1 to view2 that send the final event. > > > > > > > > The structure could be as below > > > > > > > > <!-- my composite view --> > > > > <mx:VBox ...> > > > > <mx:Script> > > > > <![CDATA[ > > > > > > > > private function handleMyEvent(event:MyCustomEvent):void > > > > { > > > > // Trigger the final event after filling up with the data > > > > view1.sendEvent(event); > > > > } > > > > > > > > ]]> > > > > </mx:Script> > > > > <view:view1 id="view1" /> > > > > <view:view1 id="view2" myInititialEvent="handleMyEvent(event)" /> > > > > </mx:VBox> > > > > > > > > What is the best way to do that? > > > > > > > > If the action was triggered from the view that hold the needed > > > > informations, i could have passed the data into a custom event > that > > > > could be directly read by the command... > > > > > > > > I have browse the forum without success to get informations on > this > > > > subject. Feel free to redirect me or give me an answer. > > > > > > > > Thanks > > > > > > > > > > -- Flexcoders Mailing List FAQ: http://groups.yahoo.com/group/flexcoders/files/flexcodersFAQ.txt Search Archives: http://www.mail-archive.com/flexcoders%40yahoogroups.com Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/flexcoders/ <*> Your email settings: Individual Email | Traditional <*> To change settings online go to: http://groups.yahoo.com/group/flexcoders/join (Yahoo! ID required) <*> To change settings via email: mailto:[EMAIL PROTECTED] mailto:[EMAIL PROTECTED] <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
