拖拽面板
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<?xml version="1.0" encoding="utf-8"?><s:Application xmlns:fx="http://ns.adobe.com/mxml/2009" xmlns:s="library://ns.adobe.com/flex/spark" xmlns:mx="library://ns.adobe.com/flex/mx" xmlns:vicp="net.myflex.vicp.*" minWidth="955" minHeight="600" backgroundColor="0"><fx:Declarations></fx:Declarations><fx:Style source="assets/style.css"/><vicp:DragPanel x="300" y="112" width="225" height="349"></vicp:DragPanel></s:Application>
面板：
/** *黄记新 */package net.myflex.vicp{import flash.display.DisplayObject;import flash.events.MouseEvent;import flash.geom.Point;import flash.geom.Rectangle;import mx.core.FlexGlobals;import mx.core.UIComponent;import mx.events.FlexEvent;import spark.components.Group;import spark.components.Panel;public class DragPanel extends Panel{/////////// 皮肤类[SkinPart]public var topGroup:Group;[SkinPart]public var dragAdorner:Adorner;private var dragRect:Rectangle;//拖拽矩形框；private var isDocked:Boolean;//停靠标志变量；private var isMouseIn:Boolean;/////////// 构造函数private var oPoint:Point = new Point();private var oW:Number;private var oH:Number;private var resizing:Boolean;public function DragPanel(){super();addEventListener(FlexEvent.CREATION_COMPLETE,completeHandler);}private function completeHandler(event:FlexEvent):void{addEventListeners();setSize();}private function setSize():void{this.oH=this.height;this.oW=this.width;}protected function addEventListeners():void{this.addEventListener(MouseEvent.MOUSE_OVER,mouseOverHandler);}protected function mouseOverHandler(event:MouseEvent):void{if(this.isDocked && !resizing){this.y=0;}this.addEventListener(MouseEvent.MOUSE_OUT,mouseOutHandler);this.removeEventListener(MouseEvent.MOUSE_OVER,mouseOverHandler);event.stopPropagation();this.dragAdorner.visible=true;}protected function mouseOutHandler(event:MouseEvent):void{this.removeEventListener(MouseEvent.MOUSE_OUT,mouseOutHandler);this.addEventListener(MouseEvent.MOUSE_OVER,mouseOverHandler);event.stopPropagation();if(this.isDocked && !resizing){this.y=-this.height+4;}this.dragAdorner.visible=false;}/** *皮肤添加 * @param partName * @param instance * */override protected function partAdded(partName:String, instance:Object):void{super.partAdded(partName,instance);if(instance==topGroup){topGroup.addEventListener(MouseEvent.MOUSE_DOWN,topGroupMouseDownHandler);}if(instance==this.dragAdorner){dragAdorner.addEventListener(MouseEvent.MOUSE_DOWN,dragAdornerMouseDownHandler);}}/** *皮肤移除 * @param partName * @param instance * */override protected function partRemoved(partName:String, instance:Object):void{super.partRemoved(partName,instance);if(instance==topGroup){topGroup.removeEventListener(MouseEvent.MOUSE_DOWN,topGroupMouseDownHandler);}}/** *边式按下响应函数 * @param event * */protected function dragAdornerMouseDownHandler(event:MouseEvent):void{event.stopPropagation();this.oPoint.x = mouseX;this.oPoint.y = mouseY;this.oPoint = this.localToGlobal(oPoint);FlexGlobals.topLevelApplication.parent.addEventListener(MouseEvent.MOUSE_MOVE,dragAdornerMouseMoveHandler);FlexGlobals.topLevelApplication.parent.addEventListener(MouseEvent.MOUSE_UP,dragAdornerMouseUpHandler);}/** *移动； * @param event * */protected function dragAdornerMouseMoveHandler(event:MouseEvent):void{event.stopPropagation();var xPlus:Number = FlexGlobals.topLevelApplication.parent.mouseX - this.oPoint.x; var yPlus:Number = FlexGlobals.topLevelApplication.parent.mouseY - this.oPoint.y;this.width = this.oW + xPlus < 140 ? 140:this.oW + xPlus;this.height=this.oH+yPlus< 140 ? 140:this.oH+yPlus;resizing=true;}/** *边式弹起，移除侦听，重置局部变量； * @param event * */protected function dragAdornerMouseUpHandler(event:MouseEvent):void{event.stopPropagation();FlexGlobals.topLevelApplication.parent.removeEventListener(MouseEvent.MOUSE_MOVE,dragAdornerMouseMoveHandler);FlexGlobals.topLevelApplication.parent.removeEventListener(MouseEvent.MOUSE_UP,dragAdornerMouseUpHandler);setSize();resizing=false;}/** *拖拽，侦听鼠标弹起； * @param event * */protected function topGroupMouseDownHandler(event:MouseEvent):void{if(!this.dragRect){this.dragRect=new Rectangle(this.parent.x,this.parent.y,this.parent.width,this.parent.height);}this.dragRect.width=this.parent.width-this.width;this.dragRect.height=this.parent.height-this.height;this.startDrag();//this.startDrag(false,this.dragRect);this.topGroup.addEventListener(MouseEvent.MOUSE_UP,topGroupMouseUpHandler);var sandBoxRoot:DisplayObject=this.systemManager.getSandboxRoot();sandBoxRoot.addEventListener(MouseEvent.MOUSE_UP,topGroupMouseUpHandler);event.stopPropagation();}/** *停止拖拽，移除鼠标弹起侦听； * @param event * */protected function topGroupMouseUpHandler(event:MouseEvent):void{this.stopDrag();this.topGroup.removeEventListener(MouseEvent.MOUSE_UP,topGroupMouseUpHandler);var sandBoxRoot:DisplayObject=this.systemManager.getSandboxRoot();sandBoxRoot.removeEventListener(MouseEvent.MOUSE_UP,topGroupMouseUpHandler);if(this.y<=0){this.isDocked=true;this.y=-4;}else{this.isDocked=false;}event.stopPropagation();}}}
边饰：
package net.myflex.vicp{import flash.events.MouseEvent;import flash.geom.Point;import mx.core.FlexGlobals;import mx.core.IVisualElement;import mx.core.UIComponent;import spark.components.Application;import spark.components.supportClasses.SkinnableComponent;public class Adorner extends SkinnableComponent{private var _resizedEle:UIComponent;private var _point:Point=new Point();public function Adorner(){super();}public function get resizedEle():UIComponent{return _resizedEle;}public function set resizedEle(value:UIComponent):void{_resizedEle = value;}private function mouseDownHandler(event:MouseEvent):void{}private function mouseMoveHandler(event:MouseEvent):void{}private function mouseUpHandler(event:MouseEvent):void{}}}
DragPanelSkin.mxml
<?xml version="1.0" encoding="utf-8"?><s:SparkSkin xmlns:fx="http://ns.adobe.com/mxml/2009" xmlns:s="library://ns.adobe.com/flex/spark" xmlns:fb="http://ns.adobe.com/flashbuilder/2009" minWidth="131" minHeight="127" blendMode="normal" mouseEnabled="false" alpha.disabled="0.5" alpha.disabledWithControlBar="0.5" xmlns:vicp="net.myflex.vicp.*"><fx:Metadata>[HostComponent("net.myflex.vicp.DragPanel")]</fx:Metadata> <fx:Script fb:purpose="styling"> <![CDATA[import mx.core.FlexVersion;/* Define the skin elements that should not be colorized. For panel, border and title background are skinned, but the content area, background, border, and title text are not. */ static private const exclusions:Array = ["background", "titleDisplay", "contentGroup", "controlBarGroup", "border"];/* exclusions before Flex 4.5 for backwards-compatibility purposes */static private const exclusions_4_0:Array = ["background", "titleDisplay", "contentGroup", "controlBarGroup"];/** * @private */override public function get colorizeExclusions():Array {// Since border is styleable via borderColor, no need to allow chromeColor to affect// the border. This is wrapped in a compatibility flag since this change was added // in Flex 4.5if (FlexVersion.compatibilityVersion < FlexVersion.VERSION_4_5){return exclusions_4_0;}return exclusions;} /** * @private */ override protected function initializationComplete():void { useChromeColor = true; super.initializationComplete(); } /** * @private */ override protected function updateDisplayList(unscaledWidth:Number, unscaledHeight:Number):void { if (getStyle("borderVisible") == true) { border.visible = true; background.left = background.top = background.right = background.bottom = 1; contents.left = contents.top = contents.right = contents.bottom = 1; } else { border.visible = false; background.left = background.top = background.right = background.bottom = 0; contents.left = contents.top = contents.right = contents.bottom = 0; } dropShadow.visible = getStyle("dropShadowVisible"); var cr:Number = getStyle("cornerRadius"); var withControls:Boolean = (currentState == "disabledWithControlBar" || currentState == "normalWithControlBar"); if (cornerRadius != cr) { cornerRadius = cr; dropShadow.tlRadius = cornerRadius; dropShadow.trRadius = cornerRadius; dropShadow.blRadius = withControls ? cornerRadius : 0; dropShadow.brRadius = withControls ? cornerRadius : 0; setPartCornerRadii(topMaskRect, withControls); setPartCornerRadii(border, withControls); setPartCornerRadii(background, withControls); } if (bottomMaskRect) setPartCornerRadii(bottomMaskRect, withControls); borderStroke.color = getStyle("borderColor"); borderStroke.alpha = getStyle("borderAlpha"); backgroundFill.color = getStyle("backgroundColor"); backgroundFill.alpha = getStyle("backgroundAlpha"); super.updateDisplayList(unscaledWidth, unscaledHeight); } /** * @private */ private function setPartCornerRadii(target:Rect, includeBottom:Boolean):void { target.topLeftRadiusX = cornerRadius; target.topRightRadiusX = cornerRadius; target.bottomLeftRadiusX = includeBottom ? cornerRadius : 0; target.bottomRightRadiusX = includeBottom ? cornerRadius : 0; } private var cornerRadius:Number;]]> </fx:Script> <s:states> <s:State name="normal"/> <s:State name="disabled"/> <s:State name="normalWithControlBar" stateGroups="withControls"/> <s:State name="disabledWithControlBar" stateGroups="withControls"/> </s:states> <!-- drop shadow can't be hittable so it stays sibling of other graphics --> <!--- @private --> <s:RectangularDropShadow id="dropShadow" left="0" right="0" top="0" bottom="0" alpha="0.32" angle="90" blurX="20" blurY="20" color="#000000" distance="11"/> <!-- drop shadow can't be hittable so all other graphics go in this group --> <s:Group left="0" right="0" top="0" bottom="0"> <!-- top group mask --> <!--- @private --> <s:Group id="topGroupMask" left="1" right="1" top="1" bottom="1"> <!--- @private --> <s:Rect id="topMaskRect" left="0" right="0" top="0" bottom="0"> <s:fill> <s:SolidColor alpha="0"/> </s:fill> </s:Rect> </s:Group> <!-- bottom group mask --> <!--- @private --> <s:Group id="bottomGroupMask" includeIn="normalWithControlBar, disabledWithControlBar" left="1" right="1" top="1" bottom="1"> <!--- @private --> <s:Rect id="bottomMaskRect" left="0" right="0" top="0" bottom="0"> <s:fill> <s:SolidColor alpha="0"/> </s:fill> </s:Rect> </s:Group> <!-- layer 1: border --> <!--- @private --> <s:Rect id="border" left="0" right="0" top="0" bottom="0"> <s:stroke> <!--- @private --> <s:SolidColorStroke id="borderStroke" weight="1"/> </s:stroke> </s:Rect> <!-- layer 2: background fill --> <!--- Defines the appearance of the PanelSkin class's background. --> <s:Rect id="background" left="1" right="1" top="1" bottom="1"> <s:fill> <!--- @private Defines the PanelSkin class's background fill. The default color is 0xFFFFFF. --> <s:SolidColor id="backgroundFill" color="#FFFFFF"/> </s:fill> </s:Rect> <!-- layer 3: contents --> <!--- Contains the vertical stack of titlebar content and controlbar. --> <s:Group id="contents" left="1" right="1" top="1" bottom="1"> <s:layout> <s:VerticalLayout gap="0" horizontalAlign="justify"/> </s:layout> <!--- @private --> <s:Group id="topGroup" mask="{topGroupMask}"> <!-- layer 0: title bar fill --> <!--- @private --> <s:Rect id="tbFill" left="0" right="0" top="0" bottom="1"> <s:fill> <s:LinearGradient rotation="90"> <s:GradientEntry color="0xE2E2E2"/> <s:GradientEntry color="0xD9D9D9"/> </s:LinearGradient> </s:fill> </s:Rect> <!-- layer 1: title bar highlight --> <!--- @private --> <s:Rect id="tbHilite" left="0" right="0" top="0" bottom="0"> <s:stroke> <s:LinearGradientStroke rotation="90" weight="1"> <s:GradientEntry color="0xEAEAEA"/> <s:GradientEntry color="0xD9D9D9"/> </s:LinearGradientStroke> </s:stroke> </s:Rect> <!-- layer 2: title bar divider --> <!--- @private --> <s:Rect id="tbDiv" left="0" right="0" bottom="0" height="1"> <s:fill> <s:SolidColor color="0xC0C0C0"/> </s:fill> </s:Rect> <!-- layer 3: text --> <!--- @copy spark.components.Panel#titleDisplay --> <s:Label id="titleDisplay" left="9" right="3" top="1" bottom="0" minHeight="30" fontWeight="bold" maxDisplayedLines="1" textAlign="start" verticalAlign="middle"> </s:Label> </s:Group> <!-- Note: setting the minimum size to 0 here so that changes to the host component's size will not be thwarted by this skin part's minimum size. This is a compromise, more about it here: http://bugs.adobe.com/jira/browse/SDK-21143 --> <!--- @copy spark.components.SkinnableContainer#contentGroup --> <s:Group id="contentGroup" width="100%" height="100%" minWidth="0" minHeight="0"> </s:Group> <!--- @private --> <s:Group id="bottomGroup" includeIn="normalWithControlBar, disabledWithControlBar" minWidth="0" minHeight="0"> <s:Group left="0" right="0" top="0" bottom="0" mask="{bottomGroupMask}"> <!-- layer 0: control bar divider line --> <s:Rect left="0" right="0" top="0" height="1" alpha="0.22"> <s:fill> <s:SolidColor color="0x000000"/> </s:fill> </s:Rect> <!-- layer 1: control bar highlight --> <s:Rect left="0" right="0" top="1" bottom="0"> <s:stroke> <s:LinearGradientStroke rotation="90" weight="1"> <s:GradientEntry color="0xE5E5E5"/> <s:GradientEntry color="0xD8D8D8"/> </s:LinearGradientStroke> </s:stroke> </s:Rect> <!-- layer 2: control bar fill --> <s:Rect left="1" right="1" top="2" bottom="1"> <s:fill> <s:LinearGradient rotation="90"> <s:GradientEntry color="0xDADADA"/> <s:GradientEntry color="0xC5C5C5"/> </s:LinearGradient> </s:fill> </s:Rect> </s:Group> <!-- layer 3: control bar --> <!--- @copy spark.components.Panel#controlBarGroup --> <s:Group id="controlBarGroup" left="0" right="0" top="1" bottom="1" minWidth="0" minHeight="0"> <s:layout> <s:HorizontalLayout gap="10" paddingBottom="7" paddingLeft="10"paddingRight="10" paddingTop="7"/> </s:layout> </s:Group> </s:Group> </s:Group><vicp:Adorner id="dragAdorner" right="1" bottom="1" rotation="180" visible="false"/> </s:Group></s:SparkSkin>
AdornerSkin.mxml
<?xml version="1.0" encoding="utf-8"?><s:Skin xmlns:fx="http://ns.adobe.com/mxml/2009" xmlns:s="library://ns.adobe.com/flex/spark" xmlns:mx="library://ns.adobe.com/flex/mx"><!-- host component --><fx:Metadata>[HostComponent("net.myflex.vicp.Adorner")]</fx:Metadata><s:Group top="0" bottom="0" left="0" right="0"><s:Rect top="0" bottom="0"left="0"right="0"><s:fill><s:SolidColor color="0xffffff"/></s:fill></s:Rect><s:Line top="0" left="0" height="10"><s:stroke><s:SolidColorStroke weight="2" color="0x123456"/></s:stroke></s:Line><s:Line top="0" left="0" width="10"><s:stroke><s:SolidColorStroke weight="2" color="0x123456"/></s:stroke></s:Line></s:Group></s:Skin>
css
/* CSS file */@namespace s "library://ns.adobe.com/flex/spark";@namespace mx "library://ns.adobe.com/flex/mx";@namespace vicp "net.myflex.vicp.*";vicp|DragPanel{skinClass:ClassReference("net.myflex.vicp.skins.DragPanelSkin");}vicp|Adorner{skinClass:ClassReference("net.myflex.vicp.skins.AdornerSkin")}
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