From ffe67c3495a19f72ca151244ef590fcac5c7c53f Mon Sep 17 00:00:00 2001
From: nikunj-15 <nikunj.c@oolio.com>
Date: Tue, 16 Jan 2024 17:44:00 +0530
Subject: [PATCH] feat: added color attribute for U220 printer

---
 src/buffer-builder.ts  | 5 +++++
 src/command.ts         | 2 ++
 src/nodes/text-node.ts | 2 ++
 3 files changed, 9 insertions(+)

diff --git a/src/buffer-builder.ts b/src/buffer-builder.ts
index 03e71ab..2b083dc 100644
--- a/src/buffer-builder.ts
+++ b/src/buffer-builder.ts
@@ -22,6 +22,11 @@ export class BufferBuilder {
     return this;
   }
 
+  public setPrintColor(color: 'black' | 'red' = 'black'): BufferBuilder {
+    this.buffer.write(Command.ESC_r(color === 'red' ? 1 : 0));
+    return this;
+  }
+
   public setCharacterSize(
     width: number = 0,
     height: number = 0
diff --git a/src/command.ts b/src/command.ts
index a6d8d78..df58ff6 100644
--- a/src/command.ts
+++ b/src/command.ts
@@ -25,6 +25,8 @@ export class Command {
   public static ESC_M              = (n: number): number[] => [Command.ESC, 0x4D, n]; // ESCMn
   public static ESC_t              = (n: number): number[] => [Command.ESC, 0x07, n]; // ESCtn
   public static ESC_Z              = (m: number, n: number, k: number): number[] => [Command.ESC, 0x5A, m, n, k]; // ESCZmnk
+  public static ESC_r              = (n: number): number[] => [Command.ESC, 0x72, n]; // ESCR
+
 
   public static FS_and: number[]   = [Command.FS, 0x40]; //ESC@
   public static FS_ob_C_fe_utf     = [Command.FS, 0x28, 0x43, 0x02, 0x00, 0x30, 0x02]; //UTF-8 encoding
diff --git a/src/nodes/text-node.ts b/src/nodes/text-node.ts
index f7f5c1d..bb85635 100644
--- a/src/nodes/text-node.ts
+++ b/src/nodes/text-node.ts
@@ -14,6 +14,8 @@ export default class TextNode extends XMLNode {
       bufferBuilder.setCharacterSize(size[0], size[1]);
     }
 
+    bufferBuilder.setPrintColor(this.attributes.color);
+
     let text = this.getContent().replace(/&nbsp;/g, ' ').replace(/&lt;tab&gt;/g, '  ').replace(/&amp;/g, '&').replace(/&#x3D;/g, '=').replace(/&#x2F;/g, '/').replace(/&lt;/g, '<').replace(/&gt;/g, '>').replace(/&#39;/g, "'").replace(/&quot;/g, '"');
 
     bufferBuilder.printText(text);