Add maxLogoWidth&maxLogoHeight options

Add maxLogoWidth&maxLogoHeight options

Author: ushelp

Gruntfile.js

@@ -12,7 +12,7 @@ module.exports = function(grunt) {
 `/**
  * EasyQRCodeJS
  * 
- * Cross-browser QRCode generator for pure javascript. Support Canvas, SVG and Table drawing methods. Support Dot style, Logo, Background image, Colorful, Title etc. settings. Support Angular, Vue.js, React, Next.js framework. Support binary(hex) data mode.(Running with DOM on client side)
+ * Cross-browser QRCode generator for pure javascript. Support Canvas, SVG and Table drawing methods. Support Dot style, Logo, Background image, Colorful, Title etc. settings. Support Angular, Vue.js, React, Next.js, Svelte framework. Support binary(hex) data mode.(Running with DOM on client side)
  * 
  * Version <%=pkg.version %>
  * 

dist/easy.qrcode.min.js

@@ -1,7 +1,7 @@
 {
 	"name": "easyqrcodejs",
-	"version": "4.3.5",
-	"description": "Cross-browser QRCode generator for pure javascript. Support Canvas, SVG and Table drawing methods. Support Dot style, Logo, Background image, Colorful, Title etc. settings. Support Angular, Vue.js, React, Next.js framework. Support binary(hex) data mode.(Running with DOM on client side)",
+	"version": "4.4.0",
+	"description": "Cross-browser QRCode generator for pure javascript. Support Canvas, SVG and Table drawing methods. Support Dot style, Logo, Background image, Colorful, Title etc. settings. Support Angular, Vue.js, React, Next.js, Svelte framework. Support binary(hex) data mode.(Running with DOM on client side)",
 	"main": "dist/easy.qrcode.min.js",
 	"scripts": {},
 	"homepage": "https://github.com/ushelp/EasyQRCodeJS#readme",

package.json

@@ -222,12 +222,14 @@ var qrcode = new QRCode(DOM_object, options_object);
 
     // ====== Logo
     /*
-    logo:"../demo/logo.png", // Relative address, relative to `easy.qrcode.min.js`
-    logo:"http://127.0.0.1:8020/easy-qrcodejs/demo/logo.png", 
-    logoWidth:80, // width. default is automatic width
-    logoHeight:80, // height. default is automatic height
-    logoBackgroundColor:'#fffff', // Logo backgroud color, Invalid when `logBgTransparent` is true; default is '#ffffff'
-    logoBackgroundTransparent:false, // Whether use transparent image, default is false
+    logo: "../demo/logo.png", // Relative address, relative to `easy.qrcode.min.js`
+    logo: "http://127.0.0.1:8020/easy-qrcodejs/demo/logo.png", 
+    logoWidth: 80, // fixed logo width. default is `width/3.5`
+    logoHeight: 80, // fixed logo height. default is `heigth/3.5`
+    logoMaxWidth: undefined, // Maximum logo width. if set will ignore `logoWidth` value
+    logoMaxHeight: undefined, // Maximum logo height. if set will ignore `logoHeight` value
+    logoBackgroundColor: '#fffff', // Logo backgroud color, Invalid when `logBgTransparent` is true; default is '#ffffff'
+    logoBackgroundTransparent: false, // Whether use transparent image, default is false
     */
 
     // ====== Backgroud Image
@@ -339,8 +341,10 @@ var qrcode = new QRCode(DOM_object, options_object);
 | **quietZoneColor** | N | String | `rgba(0,0,0,0)` |  Background CSS color to Quiet Zone |    |
 | Logo options| --- | ---|---|---|---|
 | **logo** | N | String | `undefined` | Logo Image Path or Base64 encoded image. If use relative address, relative to `easy.qrcode.min.js` |    |
-| **logoWidth** | N | Number | `undefined` |  Height |    |
-| **logoHeight** | N | Number | `undefined` |  Width |    |
+| **logoWidth** | N | Number | `width/3.5` |  Fixed logo width. |    |
+| **logoHeight** | N | Number | `height/3.5` |  fixed logo height. |    |
+| **maxLogoWidth** | N | Number | `undefined` |  Maximum logo width. if set will ignore `logoWidth` value. |    |
+| **maxLogoHeight** | N | Number | `undefined` |  Maximum logo height. if set will ignore `logoHeight` value. |    |
 | **logoBackgroundTransparent** | N | Boolean | `false` |  Whether the background transparent image(`PNG`) shows transparency. When `true`, `logoBackgroundColor` is invalid |    |
 | **logoBackgroundColor** | N | String | `#ffffff` |  Set Background CSS Color when image background transparent. Valid when `logoBackgroundTransparent` is `false` |    |
 | Backgroud Image options|  ---|--- |---|---|---|