bold

Author: CherryCola-zjl

miniprogram_dist/index/index.js

@@ -68,7 +68,7 @@ const main = {
      * @param {Object} params
      */
     drawText(params) {
-        const { x, y, fontSize, color, baseLine, textAlign, text, opacity = 1, width, lineNum, lineHeight } = params;
+      const { x, y, fontSize, color, baseLine, textAlign, text, opacity = 1, width, lineNum, lineHeight} = params;
         if (Object.prototype.toString.call(text) === '[object Array]') {
             let preText = { x, y, baseLine };
             text.forEach(item => {
@@ -174,11 +174,12 @@ const handle = {
      * 渲染一段文字
      */
     _drawSingleText({ x, y, fontSize, color, baseLine, textAlign = 'left', text, opacity = 1, textDecoration = 'none',
-    width, lineNum = 1, lineHeight = 0 }) {
+      width, lineNum = 1, lineHeight = 0, bold = 'normal', italic = 'normal', fontFamily = "sans-serif"}) {
         this.ctx.save();
         this.ctx.beginPath();
+        this.ctx.font = italic + " " + bold + " " + this.toPx(fontSize) + "px " + fontFamily
         this.ctx.setGlobalAlpha(opacity);
-        this.ctx.setFontSize(this.toPx(fontSize));
+        // this.ctx.setFontSize(this.toPx(fontSize));
         this.ctx.setFillStyle(color);
         this.ctx.setTextBaseline(baseLine);
         this.ctx.setTextAlign(textAlign);
@@ -325,10 +326,10 @@ const helper = {
         });
     },
     toPx(rpx) {
-        return rpx * this.factor;
+      return parseInt(rpx * this.factor);
     },
     toRpx(px) {
-        return px / this.factor;
+      return parseInt(px / this.factor);
     },
     /**
      * 将http转为https