Method _fillText

src/common/overlay/levelRenderer/Shape.js:833–862

* @function LevelRenderer.Shape.prototype._fillText * @description 填充文本

(ctx, text, x, y, textFont, textAlign, textBaseline)

     * @description 填充文本
     */
    static _fillText(ctx, text, x, y, textFont, textAlign, textBaseline) {
        if (textFont) {
            ctx.font = textFont;
        }
        ctx.textAlign = textAlign;
        ctx.textBaseline = textBaseline;
        var rect = Shape._getTextRect(
            text, x, y, textFont, textAlign, textBaseline
        );

        text = (text + '').split('\n');

        var lineHeight = SUtil.Util_area.getTextHeight('ZH', textFont);

        switch (textBaseline) {
            case 'top':
                y = rect.y;
                break;
            case 'bottom':
                y = rect.y + lineHeight;
                break;
            default:
                y = rect.y + lineHeight / 2;
        }

        for (var i = 0, l = text.length; i < l; i++) {
            ctx.fillText(text[i], x, y);
            y += lineHeight;
        }
    }

    /**
     * @function LevelRenderer.Shape._getTextRect