Add support for underlines (1 and 2 dot thickness)

kozmoz · Jun 20, 2016 · 22c44d6 · 22c44d6
1 parent 1deda27
commit 22c44d6
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diff --git a/README.md b/README.md
@@ -28,6 +28,8 @@ printer.println("Hello World");                            // Append text with n
 printer.cut();                                             // Cuts the paper
 
 printer.bold(true);                                 // Set text bold
+printer.underline(true);                            // Underline text (1 dot thickness)
+printer.underlineThick(true);                       // Underline text with thick line (2 dot thickness)
 printer.drawLine();                                 // Draws a line
 printer.newLine();                                  // Insers break line
 

diff --git a/node-thermal-printer.js b/node-thermal-printer.js
@@ -99,6 +99,16 @@ module.exports = {
     if(enabled) append(config.TXT_BOLD_ON);
     else append(config.TXT_BOLD_OFF);
   },
+
+  underline: function(enabled){
+    if(enabled) append(config.TXT_UNDERL_ON);
+    else append(config.TXT_UNDERL_OFF);
+  },
+
+  underlineThick: function(enabled){
+    if(enabled) append(config.TXT_UNDERL2_ON);
+    else append(config.TXT_UNDERL2_OFF);
+  },
 
   alignCenter: function (){
     append(config.TXT_ALIGN_CT);