[Egret学习笔记七]使用skewX skewY实现图片翻转效果

最新推荐文章于 2021-05-17 15:08:13 发布

JadonYuen

最新推荐文章于 2021-05-17 15:08:13 发布

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分类专栏： Egret学习文章标签： egret 图片翻转 skewX skewY anchorX

本文链接：https://blog.youkuaiyun.com/rcjjian/article/details/45337345

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其中显示区域，使用了 Wing UI布局，关于Wing UI布局使用说明请看egret官网教程

http://bbs.egret-labs.org/thread-1888-1-1.html

皮肤 GamePanelSkin.exml 如下：

<?xml version='1.0' encoding='utf-8'?>
<e:Skin width="484" height="410" xmlns:e="http://ns.egret-labs.org/egret" xmlns:w="http://ns.egret-labs.org/wing">
<w:HostComponent name="egret.gui.SkinnableComponent"/>
<w:Declarations/>
<e:states>
<e:State name="normal"/>
<e:State name="disabled"/>
</e:states>
<e:HSlider width="180" id="hslider" x="163" y="352"/>
<e:VSlider height="180" id="vslider" x="50" y="90"/>
<e:UIAsset id="asset" width="179" height="154" x="247" y="139"/> 
<e:Label id="label" x="64" y="15" width="338" height="54"/>
</e:Skin>

逻辑代码如下：

class GamePanel extends egret.gui.SkinnableComponent{

    public constructor(){
        super();
        this.skinName = skins.mySkin.GamePanelSkin;
    }

    //垂直滑条
    public vslider:egret.gui.VSlider;
    //水平滑条
    public hslider:egret.gui.HSlider;
    //图片
    public asset:egret.gui.UIAsset;
    //显示数据
    public label:egret.gui.Label;

    partAdded(name:string,instance:any):void{
        super.partAdded(name,instance);
        if(instance == this.vslider){
            this.vslider.addEventListener(egret.Event.CHANGE,this.changeHandler,this);
            this.vslider.minimum = 0;
            this.vslider.maximum = 360;
        }else if(instance == this.hslider){
            this.hslider.addEventListener(egret.Event.CHANGE,this.changeHandler,this);
            this.hslider.minimum = 0;
            this.hslider.maximum = 360;
        }else if(instance == this.asset){
            this.asset.anchorX = 0.5;
            this.asset.anchorY = 0.5;
            this.asset.source = RES.getRes("mantou_sheet.mantou_003_png"); //图片素材
        }
    }

    private changeHandler(event:egret.Event):void{
        if(event.currentTarget == this.vslider){
            this.asset.skewY = this.vslider.value;
        }else if(event.currentTarget == this.hslider){
            this.asset.skewX = this.hslider.value;
        }
        this.label.text = "skewY：" + this.asset.skewY + "\n" + "skewX：" + this.asset.skewX;
    }
}