Started implementation on text mode

src/escpos/job.rs

@@ -21,11 +21,20 @@ pub enum BARType {
     EAN13 = 0x43,
     UPCA = 0x41,
 }
-
 pub enum ImageOrientation {
     Preserve,
     Largest,
 }
+#[repr(u8)]
+pub enum JustifyOrientation {}
+
+#[repr(u8)]
+pub enum TextEffect {
+    DoubleHeight = 16,
+    Bold = 8,
+    DoubleWidth = 32,
+    Justify(JustifyOrientation) = b'a',
+}
 
 pub struct Job {
     pub ready: bool,
@@ -46,6 +55,11 @@ impl Job {
         }
     }
 
+    pub fn write_feed(&mut self, amount: Option<u8>) -> () {
+        let amount = amount.unwrap_or(1);
+        self.content.extend_from_slice(&[0x1B, b'd', amount])
+    }
+    // pub fn write_text(&mut self, text: String, )
     pub fn write_bitmap(
         &mut self,
         img: &DynamicImage,