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| class AnimationTextField extends egret.TextField
{
private _timeId:number;
private _aniTextFieldType:AniTextFieldType;
private _textCache: string;
private _textFlowCache: Array<egret.ITextElement>;
private _curTime:number;
private _showTime:number;
private _interval:number;
private _endCallBack:Function;
constructor()
{
super();
this._timeId = -1;
this._showTime = 0;
this._interval = 0.1;
this._aniTextFieldType = AniTextFieldType.text;
this.addEventListener(egret.Event.REMOVED_FROM_STAGE, this.OnRemoveFromStage, this);
}
public set textCache(value:string)
{
this._textCache = value;
this._aniTextFieldType = AniTextFieldType.text;
}
public set showTime(value:number){
this._showTime = value;
}
public set interval(value:number){
this._interval = value;
}
public set textFlowCache(value:Array<egret.ITextElement>)
{
this._textFlowCache = value;
this._aniTextFieldType = AniTextFieldType.textFlow;
}
public beginShow(endCall:Function = null){
this._curTime = 0;
this._endCallBack = endCall;
if(this._aniTextFieldType == AniTextFieldType.text)
{
this.textShowAction();
} else {
this.textFlowShowAction();
}
}
private textShowAction()
{
let textLength = this._textCache.length;
let subLength = 1;
let actionTime = textLength;
if(this._showTime){
actionTime = Math.floor(this._showTime/this._interval);
subLength = Math.ceil(textLength/actionTime);
}
this.text = "";
this._timeId = GameTimer.AddTimerBehavior(()=>{
this.appendText(this._textCache.substr(this._curTime*subLength,subLength));
this._curTime ++;
if(this._curTime*subLength >= textLength){
this.Stop();
this._endCallBack();
}
},actionTime,0,this._interval);
}
private textFlowShowAction()
{
this.textFlow = <Array<egret.ITextElement>>[];
this._timeId = GameTimer.AddTimerBehavior(()=>{
if(this._textFlowCache.length > 0){
if(this._curTime &&this.textFlow.length){
this.textFlow.splice(-1,1);
}
let element = <egret.ITextElement>{};
if(this._textFlowCache[0].style){
element.style = this._textFlowCache[0].style;
}
this._curTime ++;
element.text = this._textFlowCache[0].text.substr(0,this._curTime);
this.appendElement(element);
if(this._curTime == this._textFlowCache[0].text.length){
this._textFlowCache.splice(0,1);
this._curTime = 0;
if(this._textFlowCache.length == 0){
this.Stop();
if(this._endCallBack){
this._endCallBack();
}
}
}
}
},-1,0,this._interval);
}
// private textFlowShowAction()
// {
// this.textFlow = [];
// this._timeId = GameTimer.AddTimerBehavior(()=>{
// if(this._textFlowCache.length > 0){
// if(this._curTime == 0){
// let element = <egret.ITextElement>{};
// if(this._textFlowCache[0].style){
// element.style = this._textFlowCache[0].style;
// }
// element.text = "";
// this.textFlow.push(element);
// }
// this._curTime ++;
// this.textFlow[this.textFlow.length -1].text = this._textFlowCache[0].text.substr(0,this._curTime);
// if(this._curTime == this._textFlowCache[0].text.length){
// this._textFlowCache.splice(0,1);
// this._curTime = 0;
// if(this._textFlowCache.length == 0){
// this.Stop();
// if(this._endCallBack){
// this._endCallBack();
// }
// }
// }
// }
// },-1,0,this._interval);
// }
public ActionToEnd()
{
this.Stop();
if(this._aniTextFieldType == AniTextFieldType.text)
{
this.text = this._textCache;
} else {
this.textFlowActionToEnd();
}
if(this._endCallBack){
this._endCallBack();
}
}
private textFlowActionToEnd()
{
if(this._textFlowCache.length > 0){
if(this._curTime != 0){
this.textFlow[this.textFlow.length -1].text = this._textFlowCache[0].text;
this._textFlowCache.splice(0,1);
}
if(this._textFlowCache.length > 0){
for (let index = 0; index < this._textFlowCache.length; index++) {
const element = this._textFlowCache[index];
this.textFlow.push(element);
}
this._textFlowCache = [];
}
}
}
private Stop()
{
if(this._timeId > 0){
GameTimer.RemoveTimerBehavior(this._timeId);
this._timeId = -1;
}
}
// 从舞台移除消息处理
private OnRemoveFromStage( evt:egret.Event )
{
this.Stop();
// this.DestroyDragonBone();
}
}
enum AniTextFieldType {text,textFlow}
|