TileListを使用して、ギャラリーのように画像を表示します。最初は、ドラッグオプションのみをアクティブにします。
<mx:TileList xmlns:fx="http://ns.adobe.com/mxml/2009"
xmlns:s="library://ns.adobe.com/flex/spark"
xmlns:mx="library://ns.adobe.com/flex/mx"
columnWidth="120"
rowHeight="150"
paddingLeft="2"
paddingRight="2"
paddingTop="2"
paddingBottom="2"
itemRenderer="fr.ui.display._43Imagerie.TileUnit2"
doubleClickEnabled="true"
dragEnabled="true"
dropEnabled="true"
dragMoveEnabled="true"
verticalScrollPolicy="on"
>
今、私は複数の選択の可能性を追加しようとしています。
ItemRendererは:
<mx:Canvas xmlns:mx="http://www.adobe.com/2006/mxml"
verticalScrollPolicy="off"
horizontalScrollPolicy="off"
width="120"
height="150"
borderVisible="false"
xmlns:s="library://ns.adobe.com/flex/spark"
creationComplete="onEvent()"
>
<mx:Script>
<![CDATA[
import fr.util.imageTransform;
import mx.controls.Image;
import mx.core.UIComponent;
import mx.events.DragEvent;
import mx.managers.DragManager;
import org.osmf.utils.URL;
import spark.effects.Rotate;
[Bindable]
[Embed(source="icon/imagerie/rotate.png")]
private var rotationArrowClass:Class;
private var _file:File;
private var _selected:Boolean;
private var _sauvBMD:BitmapData;
public var wasScaled:Boolean = false;
public var deleted:Boolean = false;
private var bgCenterX:Number;
private var bgCenterY:Number;
private var _dragDownPt:Point;
[Bindable]
public var angle:int = 0;
private var dragBitmapData : BitmapData;
private function onEvent():void
{
// iconCanvas.addEventListener(MouseEvent.DOUBLE_CLICK, onDoubleClick);
// double click gere ds wPlanchePhoto3
}
private function rotationImage(e:MouseEvent):void
{
var rot:Rotate = new Rotate();
rot.angleBy = 90;
rot.duration = 1000;
rot.autoCenterTransform = true;
rot.target = iconCanvas;
rot.play();
}
private function radiansToDegrees(radians:Number):Number {
var degrees:Number = radians * (180 / Math.PI);
return degrees;
}
private function degreesToRadians(degrees:Number):Number {
var radians:Number = degrees * (Math.PI / 180);
return radians;
}
public function set image(im:BitmapData):void
{
this._sauvBMD=im;
}
public function get image() :BitmapData
{
return this._sauvBMD;
}
protected function iconCanvas_mouseDownHandler(event:MouseEvent):void
{
// on enregistre la point de départ
_dragDownPt = new Point(mouseX,mouseY);
// puis on écoute l'éventuel déplacement de la souris
this.addEventListener(MouseEvent.MOUSE_MOVE,_onMouseMoveDuringDrag);
}
private function _onMouseMoveDuringDrag(evt:MouseEvent):void {
// astuce pour s'assurer que la souris a vraiment bougee volontairement
if(Math.abs(_dragDownPt.x - mouseX) <= 2 && Math.abs(_dragDownPt.y - mouseY) <= 2)
return;
else{
dragBitmapData = new BitmapData(iconCanvas.width, iconCanvas.height,true, 1);
dragBitmapData.draw(iconCanvas);
var transfert:Clipboard = new Clipboard();
transfert.setData(ClipboardFormats.BITMAP_FORMAT,Bitmap(iconCanvas.content).bitmapData);
// only allow the file to be copied
var dragOptions:NativeDragOptions = new NativeDragOptions();
dragOptions.allowMove=false;
dragOptions.allowCopy = true;
dragOptions.allowLink = false;
// begin the drag
NativeDragManager.doDrag(this, transfert, dragBitmapData, null, dragOptions);
}
// dispatch de l'event depuis le parent pour pouvoir écouter cet event dans l'application
}
]]>
</mx:Script>
<s:BorderContainer
id="bcImage"
width="120"
height="99%"
borderVisible="true"
borderColor="#FFFFFF"
borderWeight="1"
cornerRadius="6"
backgroundAlpha=".4"
backgroundColor="#5f5f5f"
>
<mx:Canvas id="cvsImage" width="100%">
<mx:SWFLoader id="rotationArrow" source="{rotationArrowClass}" height="18" width="18" x="3" y="3" visible="true" click="rotationImage(event);" alpha=".5"/>
<s:Label x="23" y="3" width="82" fontSize="11" fontWeight="normal" text="{data.imDate}"
textAlign="right" color="#000000"/>
<mx:Image id="iconCanvas" x="10" y="20" width="99" height="99" horizontalAlign="center"
maintainAspectRatio="true" scaleContent="true"
source="{data.imURL}"
verticalAlign="middle" mouseDown="iconCanvas_mouseDownHandler(event)"
>
</mx:Image>
</mx:Canvas>
<s:VGroup width="100%" y="124" height="25" bottom="1" left="3" right="3" paddingBottom="0" paddingTop="4" gap="0">
<s:Label text="{data.imType}" height="50%" fontSize="10" paddingBottom="1"
fontWeight="normal" width="99%" textAlign="center" color="#000000"/>
<s:Label text="{data.imStade}" fontSize="10" textAlign="center" paddingTop="1"
fontWeight="normal" width="99%" color="#000000"/>
</s:VGroup>
</s:BorderContainer>
このオプションがtrue(allowMultipleSelection)の場合、停止をドラッグして機能させます。理由を知っていますか?
助けてくれてありがとう。