can u send ur code. i will correct it
On Fri, Apr 11, 2008 at 12:31 PM, anuppc <[EMAIL PROTECTED]> wrote:
> Daniel,
>
> just tried a few more things to debug
>
> Alert.show(ds.dataForFormat('items').toString());
>
> The Alert shows : [object Object]
>
> When i try:
>
> var draggedImage:Image = ds.dataForFormat('items') as Image;
> newImage.source = draggedImage.source;
>
> The 2nd line is the source of error again.
>
> draggedImage is null
>
> Not sure how i can convert the Object to Image....
>
> Thanks
>
>
> --- In [email protected] <flexcoders%40yahoogroups.com>, "anuppc"
> <[EMAIL PROTECTED]> wrote:
> >
> > Daniel,
> >
> >
> > I tried this.
> >
> > var draggedImage:Image = event.draggedItem as Image;
> > var dropCanvas:Canvas = event.currentTarget as Canvas;
> > var bmpData:BitmapData =
> Bitmap(draggedImage.content).bitmapData;
> > var bitmap:Bitmap = new Bitmap(bmpData);
> > var newImage:Image = new Image();
> > newImage.source = bitmap;
> > newImage.x = dropCanvas.mouseX;
> > newImage.y = dropCanvas.mouseY;
> > dropCanvas.addChild(newImage);
> >
> > I get this error:
> >
> > TypeError: Error #1009: Cannot access a property or method of a null
> > object reference.
> >
> > The error trace points to "draggedImage.content". Looks like
> > draggedImage is null.
> >
> > I was trying out a few other things to see what formats are available
> > from DragSource
> >
> > var ds:DragSource = event.dragSource;
> > var formatArray:Array = ds.formats;
> > for (var i:String in formatArray)
> > {
> > Alert.show(formatArray[i]);
> > }
> >
> > The Alert shows "items" as the value in the formatArray.
> >
> > Not sure how to get hold of the Image. The source as i said was an
> > mx:Object array which has icon attribute using a embed image.
> >
> > Let me know if i can try anything else. Thanks
> >
> >
> >
> >
> > --- In [email protected] <flexcoders%40yahoogroups.com>,
> "Daniel Gold" <danielggold@> wrote:
> > >
> > > Give this a shot:
> > >
> > > var bmpData:BitmapData =
> > > Bitmap(draggedImage.content).bitmapData;
> > > var bitmap:Bitmap = new Bitmap(bmpData);
> > > var newImage:Image = new Image();
> > > newImage.source = bitmap;
> > >
> > > that should give you a newImage object that reuses the same bitmap
> > data from
> > > the original image
> > >
> > > On Thu, Apr 10, 2008 at 3:33 AM, anuppc <anuppc@> wrote:
> > >
> > > > Daniel,
> > > >
> > > > Yes the original image is embedded.
> > > >
> > > > Can you show some example on getting the bitmapdata of the
> draggedItem
> > > > out of the event? I presume that is what you are suggesting.
> > > >
> > > > Thanks
> > > > Anup
> > > >
> > > >
> > > > --- In [email protected]
> > > > <flexcoders%40yahoogroups.com><flexcoders%
> 40yahoogroups.com>,
> > "Daniel
> > > > Gold" <danielggold@> wrote:
> > > > >
> > > > > is the original image embedded? instead of setting the source
> of the
> > > > > draggedImage you may want to get the bitmap data out of the
> original
> > > > image
> > > > > and reuse it for efficiency.
> > > > >
> > > > > On Wed, Apr 9, 2008 at 1:47 PM, anuppc <anuppc@> wrote:
> > > > >
> > > > > > have a drag and drop issue.
> > > > > >
> > > > > > Drag Source is
> > > > > >
> > > > > > <mx:Panel x="48" y="125" width="800" height="600"
> > layout="absolute"
> > > > > > title="Drag onto Tree">
> > > > > >
> > > > > > <mx:Accordion id="accordion" width="200" height="450" left="10"
> > > > > > top="10" bottom="10">
> > > > > > <!-- Define each panel using a VBox container. -->
> > > > > > <mx:VBox label="Events" >
> > > > > > <mx:List width="200" height="450" right="10" bottom="10"
> > > > id="eventlist"
> > > > > > allowMultipleSelection="true"
> > > > > > dataProvider="{events}"
> > > > > > dragEnabled="true"
> > > > > > dragMoveEnabled="true"
> > > > > > >
> > > > > > </mx:List>
> > > > > > </mx:VBox> .......
> > > > > >
> > > > > > The DataProvider {events} is an array of Objects
> > > > > >
> > > > > > <mx:Array id="events">
> > > > > > <mx:Object icon="startIcon" width="20" height="20"
> > label="Start" />
> > > > > > <mx:Object icon="endIcon" width="30%" height="30%" label="End"/>
> > > > > > <mx:Object icon="intermediateIcon" width="30%" height="30%"
> > > > > > label="Intermediate"/>
> > > > > > <mx:Object icon="msgStartIcon" width="30%" height="30%"
> > > > label="Message"/>
> > > > > > <mx:Object icon="timerStartIcon" width="30%" height="30%"
> > > > label="Timer"/>
> > > > > > </mx:Array>
> > > > > >
> > > > > > Now the Target for drop is a Canvas
> > > > > >
> > > > > > <mx:Canvas borderStyle="inset" height="420" width="520"
> left="250"
> > > > > > top="10" bottom="10"
> > > > > > dragEnter="onDragEnter(event)"
> > > > > > dragDrop="onDragDrop(event)"
> > > > > > dragOver="onDragOver(event)" >
> > > > > > <mx:Panel id="lanes" width="100%" height="100%"/>
> > > > > > </mx:Canvas>
> > > > > >
> > > > > > Now the dragDrop handler is as follows :
> > > > > >
> > > > > > private function onDragDrop( event:DragEvent ) : void
> > > > > >
> > > > > > {
> > > > > > var ds:DragSource = event.dragSource;
> > > > > > trace(ds);
> > > > > >
> > > > > > Alert.show("onDragDrop Clicked!");
> > > > > > var formatArray:Array = ds.formats;
> > > > > > for (var i:String in formatArray)
> > > > > > {
> > > > > > Alert.show(formatArray);
> > > > > > }
> > > > > > var draggedImage:Image = event.dragInitiator as Image;
> > > > > > var dropCanvas:Canvas = event.currentTarget as Canvas;
> > > > > > var newImage:Image=new Image();
> > > > > >
> > > > > > newImage.source = ds;
> > > > > > newImage.x = dropCanvas.mouseX;
> > > > > > newImage.y = dropCanvas.mouseY;
> > > > > > dropCanvas.addChild(newImage);
> > > > > >
> > > > > > }
> > > > > >
> > > > > > Problem is Image does not get displayed. It shows a missing
> > image icon
> > > > > > on the target Canvas.
> > > > > >
> > > > > >
> > > > > >
> > > > >
> > > >
> > > >
> > > >
> > >
> >
>
>
>
--
Thanks & Regards
Swaminathan. M
