dragonbones-runtime/.cache/egret-core-5.1.0/src/egret/text/native/NativeTextMeasurer.ts

the tools to build dragonbones file for diffrent framework

//////////////////////////////////////////////////////////////////////////////////////
//
//  Copyright (c) 2014-present, Egret Technology.
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namespace egret.native {
    /**
     * 测量文本在指定样式下的宽度。
     * @param text 要测量的文本内容。
     * @param fontFamily 字体名称
     * @param fontSize 字体大小
     * @param bold 是否粗体
     * @param italic 是否斜体
     */
    function measureText(text:string, fontFamily:string, fontSize:number, bold:boolean, italic:boolean):number {
        let font:string;
        var arr:string[];
        if(fontFamily.indexOf(", ") != -1) {
            arr = fontFamily.split(", ");
        }
        else if(fontFamily.indexOf(",") != -1) {
            arr = fontFamily.split(",");
        }
        if(arr) {
            let length:number = arr.length;
            for(let i = 0 ; i < length ; i++) {
                let fontFamily = arr[i];
                //暂时先不考虑带有引号的情况
                if(fontMapping[fontFamily]) {
                    font = fontMapping[fontFamily];
                    break;
                }
            }
        }
        else {
            font = fontMapping[fontFamily];
        }
        if(!font) {
            font= "/system/fonts/DroidSansFallback.ttf";
        }
        egret_native.Label.createLabel(font, fontSize, "", 0);
        return egret_native.Label.getTextSize(text)[0];
    }

    sys.measureText = measureText;
}