Merge pull request #43 from pcapanna/master

Resolving text hight not set correctly when in custom sizes case

Author: lsongdev

commands.js

@@ -82,7 +82,13 @@ _.TEXT_FORMAT = {
   TXT_2WIDTH      : '\x1b\x21\x20', // Double width text
   TXT_4SQUARE     : '\x1b\x21\x30', // Double width & height text
 
-  TXT_SIZE        : '\x1d\x21', // other sizes
+  TXT_CUSTOM_SIZE  : function(width, height){ // other sizes
+    var widthDec = (width - 1) * 16;
+    var heightDec = height - 1;
+    var sizeDec = widthDec+heightDec;
+    return '\x1d\x21'+String.fromCharCode(sizeDec);
+  },
+
   TXT_HEIGHT      : {
     1: '\x00',
     2: '\x01',

printer.js

@@ -237,9 +237,7 @@ Printer.prototype.size = function(width, height) {
       this.buffer.write(_.TEXT_FORMAT.TXT_2WIDTH);
     }
   } else {
-    this.buffer.write(_.TEXT_FORMAT.TXT_SIZE);
-    this.buffer.write(_.TEXT_FORMAT.TXT_WIDTH[(8 >= width) ? width : 8]);
-    this.buffer.write(_.TEXT_FORMAT.TXT_HEIGHT[(8 >= height) ? height : 8]);
+    this.buffer.write(_.TEXT_FORMAT.TXT_CUSTOM_SIZE(width, height));
   }
   return this;
 };